Готові списки джерел за темами / Film plastic

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Добірка наукової літератури з теми "Film plastic"

Автор: Grafiati
Опубліковано: 30 травня 2022
Оновлено: 19 липня 2025

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Статті в журналах з теми "Film plastic"

1

Afiifah Radhiyatullah, Novita Indriani, and M. Hendra S. Ginting. "PENGARUH BERAT PATI DAN VOLUME PLASTICIZER GLISEROL TERHADAP KARAKTERISTIK FILM BIOPLASTIK PATI KENTANG." Jurnal Teknik Kimia USU 4, no. 3 (2015): 35–39. http://dx.doi.org/10.32734/jtk.v4i3.1479.

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Анотація:
Bioplastics are plastics which can be degraded by microorganisms and is made from renewable materials. Plastic film is made from potato starch (contain of starch that founded in potatoes is 22-28%), glycerol as a plasticizer and acetic acid as a catalyst. The purpose of this reasearch is to determine glycerol variation and starch weight effect on the characteristics of potato starch plastic films. Manufacture of plastic films use blending starch method with potato starch weight variations (10 g, 15 g and 20 g) and glycerol volume variations (0 ml, 1 ml, 2 ml and 3 ml). Bioplastic analysis are FTIR test, tensile strength that is supported by SEM analysis. The results obtained in the FTIR analysis does not form a new cluster on potato starch plastic film, neither on the plastic film with or without glycerol. FTIR results obtained in two plastic film are the change of OH, C = C, and CH groups strain. The strain value of OH group on potato starch is 3579.88 cm-1 turned into 2978.09 cm-1 for plastic film without glycerol while the plastic film with glycerol to be 3541.31 cm -1 and 2970.38 cm-1. C = C group is 1635.64 cm-1turned to 1697.36 cm -1 and 1697.36 cm -1. As for CH group is 2873.79 cm -1 turned to 2877.79 cm -1 and 2870.08 cm -1. And tensile strength of plastic film decreased with increasing glycerol volume. Maximum tensile strength of plastic film occurs when potato starch weight is 10 g and glycerol volume is 0 ml is 9.397 MPa. While SEM results obtained confirm on tensile strength plastic film, where there are voids, indentations and insoluble starch clump starch that can affect the value of tensile strength plastic film.
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2

Deden, Mohammad, Abdul Rahim, and Asrawaty Asrawaty. "SIFAT FISIK DAN KIMIA EDIBLE FILM PATI UMBI GADUNG PADA BERBAGAI KONSENTRASI." Jurnal Pengolahan Pangan 5, no. 1 (2020): 26–33. http://dx.doi.org/10.31970/pangan.v5i1.35.

Повний текст джерела
Анотація:
Today, the use of synthetic polymers as plastics has an important role in the economy of modern industrial society. Plastic packaging is often used as a food packaging material. However, the use of plastics can pollute the environment, because plastic is difficult to degrade naturally. One alternative to replacing the use of conventional plastics as food packaging is biodegradable plastic called edible film. The use of gadung tuber starch as a raw material for making edible films will not disturb food stability, because gadung is not consumed such as rice, corn and cassava. Gadung tubers are very good for edible film polymer materials containing high carbohydrates. Aim to determine the physical and chemical properties of the edible film starch of gadung tubers at various concentrations. The conclusion is that the optimum conditions for making edible films are good at 6% starch concentration with KA 11.50% and an average thickness of 0.13 mm.
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3

Bani, Marsi D. S. "Variasi Volume Gliserol terhadap Sifat Fisis Plastik Biodegradable Berbahan Dasar Pati Ubi Kayu (Manihot Esculenta Cranz)." Al-Khwarizmi: Jurnal Pendidikan Matematika dan Ilmu Pengetahuan Alam 7, no. 1 (2019): 61–78. http://dx.doi.org/10.24256/jpmipa.v7i1.678.

Повний текст джерела
Анотація:
Abstract:The use of starch as the main ingredient in making plastic has great potential especially in Indonesia with various starch-producing plants. To obtain bioplastics, starch is added with glycerol plasticizer, so that the plastic is more flexible and elastic. In this study, cassava starch (Manihot esculenta cranz) was used and the volume of glycerol as plasticizer was varied by 2 ml, 3 ml and 4 ml. The aim to be achieved in this study was to determine the volume variation of glycerol against the tensile strength of environmentally friendly biodegradable plastic films made from cassava starch. In addition, to find out what is the density of environmentally friendly biodegradable plastic films made from cassava starch. Cassava starch was obtained by isolating cassava starch 15 grams and then mixed with 2 ml glycerol (varied 3 ml and 4 ml) and 50 ml of aquades then heated while stirring with magnetic stirrer to form a thick dough. The mixture is then printed on a stainless steel mold. The results obtained in the form of thin sheets of plastic film that has been tested for tensile strength and density. After that followed by morphological analysis. The results of the biodegradable plastic characterization for tensile strength of plastic films with volume variations of glycerol 2 ml, 3 ml and 4 ml respectively as follows: 0.001 Mpa 0.069 Mpa 0.005 Mpa. For the density of biodegradable plastics for variations in volume of glycerol 2 ml, 3 ml and 4 ml respectively 0.0009 g / mm3, 0.0015 g / mm3 and 0.0014 g / mm3.Abstrak:Penggunaan pati sebagai bahan utama pembuatan plastik memiliki potensi yang besar terlebih lagi di Indonesia terdapat berbagai tanaman penghasil pati. Untuk memperoleh bioplastik, pati ditambahkan dengan plastisizer gliserol, sehingga diperoleh plastik yang lebih fleksible dan elastis. Pada penelitian ini digunakan pati ubi kayu (Manihot esculenta cranz) dan volume gliserol sebagai plastisizer divariasikan sebanyak 2 ml, 3 ml dan 4 ml. Tujuan yang ingin dicapai dalam penelitian ini adalah untuk mengetahui variasi volume Gliserol terhadap kuat tarik film plastik biodegradable ramah lingkungan berbahan dasar pati ubi kayu. Selain itu untuk mengetahui berapa densitas film plastik biodegradable ramah lingkungan berbahan dasar pati ubi kayu. Pati ubi kayu diperoleh dengan mengisolasi pati ubi kayu 15 gram kemudian dicampurkan dengan 2 ml gliserol (divariasikan 3 ml dan 4 ml) dan 50 ml aquades kemudian dipanaskan sambil diaduk dengan magnetik stirerr hingga berbentuk adonan yang kental. Campuran tersebut kemudian dicetak pada cetakan stainless steel. Hasil yang diperoleh berupa lembaran tipis film plastik yang telah diuji kekuatan tarik dan densitasnya. Setelah itu dilanjutkan dengan analisa morfologi. Hasil karakterisasi plastik biodegradable untuk kuat tarik film plastik dengan variasi volume gliserol 2 ml, 3 ml dan 4 ml berturut-turut sebagai berikut: 0.001 Mpa 0,069 Mpa 0.005 Mpa. Untuk densitas dari plastik biodegradable untuk variasi volume gliserol 2 ml, 3 ml dan 4 ml berturut-turut adalah 0.0009 g/mm3, 0.0015 g/mm3 dan 0.0014 g/mm3.
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4

Sikora, Janusz, Łukasz Majewski, and Andrzej Puszka. "Modern Biodegradable Plastics—Processing and Properties: Part I." Materials 13, no. 8 (2020): 1986. http://dx.doi.org/10.3390/ma13081986.

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Анотація:
This paper presents a characterization of a plastic extrusion process and the selected properties of three biodegradable plastic types, in comparison with LDPE (low-density polyethylene). The four plastics include: LDPE, commercial name Malen E FABS 23-D022; potato starch based plastic (TPS-P), BIOPLAST GF 106/02; corn starch based plastic (TPS-C), BioComp®BF 01HP; and a polylactic acid (polylactide) plastic (PLA), BioComp®BF 7210. Plastic films with determined geometric parameters (thickness of the foil layer and width of the flattened foil sleeve) were produced from these materials (at individually defined processing temperatures), using blown film extrusion, by applying different extrusion screw speeds. The produced plastic films were tested to determine the geometrical features, MFR (melt flow rate), blow-up ratio, draw down ratio, mass flow rate, and exit velocity. The tests were complemented by thermogravimetry, differential scanning calorimetry, and chemical structure analysis. It was found that the biodegradable films were extruded at higher rate and mass flow rate than LDPE; the lowest thermal stability was ascertained for the film samples extruded from TPS-C and TPS-P, and that all tested biodegradable plastics contained polyethylene.
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5

Sikora, Janusz W., Łukasz Majewski, and Andrzej Puszka. "Modern Biodegradable Plastics—Processing and Properties Part II." Materials 14, no. 10 (2021): 2523. http://dx.doi.org/10.3390/ma14102523.

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Анотація:
Four different plastics were tested: potato starch based plastic (TPS-P)–BIOPLAST GF 106/02; corn starch based plastic (TPS-C)–BioComp BF 01HP; polylactic acid (polylactide) plastic (PLA)—BioComp BF 7210 and low density polyethylene, trade name Malen E FABS 23-D022; as a petrochemical reference sample. Using the blown film extrusion method and various screw rotational speeds, films were obtained and tested, as a result of which the following were determined: breaking stress, strain at break, static and dynamic friction coefficient of film in longitudinal and transverse direction, puncture resistance and strain at break, color, brightness and gloss of film, surface roughness, barrier properties and microstructure. The biodegradable plastics tested are characterized by comparable or even better mechanical strength than petrochemical polyethylene for the range of film blowing processing parameters used here. The effect of the screw rotational speed on the mechanical characteristics of the films obtained was also demonstrated. With the increase in the screw rotational speed, the decrease of barrier properties was also observed. No correlation between roughness and permeability of gases and water vapor was shown. It was indicated that biodegradable plastics might be competitive for conventional petrochemical materials used in film blowing niche applications where cost, recyclability, optical and water vapor barrier properties are not critical.
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6

Miao, Lixiang, Yuchao Zhang, Xiaofang Yang, et al. "Fruit Quality, Antioxidant Capacity, Related Genes, and Enzyme Activities in Strawberry (Fragaria ×ananassa) Grown under Colored Plastic Films." HortScience 52, no. 9 (2017): 1241–50. http://dx.doi.org/10.21273/hortsci12062-17.

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Анотація:
The influence of colored plastic films (red, yellow, green, blue, and white) on fruit quality, antioxidant capacity, and gene transcripts was studied in greenhouse-grown strawberries. Fruits grown under white plastic film were used as the controls. Results indicated that there was no difference in single fruit weight due to colored plastic films in the present study. The colored plastic films had significant effects on sugar and organic acid content. The content of total sugar (SUG) was increased by 10.39% and total organic acid (ACID) was decreased by 16.58% in fruit grown under blue plastic film compared with the controls. Fruit grown under blue plastic film had significantly higher SUG content and lower ACID content than fruit subjected to yellow and green plastic films and had the highest SUG/ACID ratio of 11.46. Colored plastic films had significant effects on bioactive compound (anthocyanin, flavonoid, phenolic) content and antioxidant capacity. The highest level of bioactive compound content was detected under red plastic film. The content of total phenolics, total flavonoids, and total anthocyanin (TAC) in fruits grown under red plastic film was respectively 23.10%, 25.37%, and 74.11% higher than that of the fruits grown under the control. The antioxidant capacities were highest in fruits grown under red plastic film. Fruits grown under red and yellow films had higher sucrose phosphate synthase (SPS) and sucrose synthase (SS) activity than those fruit covered with green, blue, and white plastic films at whole fruit development stages. Acid invertase (AI) activity was high in fruit grown under green plastic film and declined during development. Blue plastic film had mainly increased the FaSPS and FaAI transcript at the green stage, and decreased the expression of FaSS. It is proposed that colored plastic films can regulate the expression of genes involved in the flavonoid biosynthesis pathway, especially FaPAL, FaF3H, FaFGT, and FaMYB10, at half-red and red stages.
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7

Picuno, Pietro, Zoe Godosi, and Caterina Picuno. "Agrochemical Contamination and Ageing Effects on Greenhouse Plastic Film for Recycling." Applied Sciences 12, no. 19 (2022): 10149. http://dx.doi.org/10.3390/app121910149.

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Анотація:
Plastic films used for crop protection have reached notable consumption all over Europe, as well as in the rest of the world. This phenomenon however poses a serious environmental problem connected with the impact on the sustainability of agricultural production and relevant plastic footprint. Mechanical recycling of agricultural plastics is a common technique, but limited by many factors, as the loss of mechanical properties of plastic film. This phenomenon, due to its ageing after being exposed to natural weather conditions, plays a crucial role, especially when aggravated by contamination with agrochemicals ordinarily used for crop health and pest management. This article reports the result of some laboratory tests on agricultural plastic film, artificially aged for different periods and contaminated with two different agrochemicals (anti-aphid or fungicide). These results show that the impact of agrochemicals on plastic film is considerable, since it worsens the ageing process of the plastic film, conducting a more rapid reduction in its mechanical properties—mostly, a faster reduction in the elongation at break below 50% of the corresponding value of the virgin plastic film. This phenomenon, other than reducing the working life of the plastic film, gives it a low potential for being transformed into a closed-loop recycled material when entering the recycling stage. The increase in the value of the detected Carbonyl Index (CI) confirms the tendency of the material to degrade rapidly when in contact with agrochemicals, hence indicating that it may be impossible to mechanically recycle it.
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8

Abdul Mueez Ahmad, Asad Ali, Anas Afzal, Nimra Tanveer, and Almas Mustafa. "Corn Waste a Sustainable Solution for Plastic Pollution: A Mini Review." NUST Journal of Engineering Sciences 17, no. 1 (2024): 17–27. http://dx.doi.org/10.24949/njes.v17i1.817.

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Анотація:
Plastic pollution is a critical environmental issue leading to extensive ecological damage and posing health risks due to the persistence of petrochemical-derived plastics. Biodegradable films particularly those derived from renewable resources like corn waste offer a promising solution to this issue. Corn waste including husks, stalks and cobs are rich in cellulose, hemicellulose and lignin making it suitable for biodegradable film production. Various methods such as chemical treatments, enzymatic hydrolysis and mechanical processes are used to extract useful components from corn waste followed by film formation techniques like casting and extrusion. Corn waste films exhibit mechanical and barrier properties comparable to conventional plastics with the added benefit of faster biodegradability. These films have potential applications in packaging and agriculture reducing plastic waste and supporting sustainable practices.
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9

Chirilli, Chiara, and Luisa Torri. "Effect of Biobased Cling Films on Cheese Quality: Color and Aroma Analysis for Sustainable Food Packaging." Foods 12, no. 19 (2023): 3672. http://dx.doi.org/10.3390/foods12193672.

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Анотація:
Biobased and biodegradable polymeric materials are a sustainable alternative to the conventional plastics used in food packaging. This study investigated the possible effect of biobased cling films derived from renewable and circular and sustainable sources on key cheese sensory parameters (appearance and odor) able to influence consumer acceptance or rejection of a food product over time. For this purpose, a semi-hard cheese was selected as food model and stored for 14 days at 5 °C wrapped with five cling films: two bio-plastic materials from renewable circular and sustainable sources (R-BP1 and R-BP2), one bio-plastic film from a non-renewable source (NR-BP), and two conventional cling films (LDPE and PVC). Three analytical approaches (image analysis, electronic nose, and sensory test) were applied to evaluate the variation and the acceptability in terms of appearance and odor of the cheese. In preserving cheese color, the R-BP1 and RBP2 films were comparable to LDPE film, while NR-BP film was comparable to PVC film. In terms of odor preservation, R-BP2 film was comparable to LDPE and PVC. The consumer test showed that appearance and odor scores were higher for cheeses stored in R-BP1 and R-BP2 films than NR-BP film. Moreover, in terms of odor, R-BP1 film performed better than conventional films. This study shows how biodegradable cling films from renewable circular and sustainable resources could have comparable performance to conventional plastics (LDPE and PVC) used in the food sector.
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10

Pradtana, Muangprakaew, Luangsa-Ard Nucharin, and Komasatitaya Juntira. "Study of Physical, Mechanical, and Barrier Properties in Linear Low-Density Polyethylene Mixed with Silver Zeolite Nanoparticles (Ag-zeolite) Film." Indian Journal of Science and Technology 14, no. 31 (2021): 2526–34. https://doi.org/10.17485/IJST/v14i31.1.

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Анотація:
Abstract <strong>Background/Objectives:</strong>&nbsp;The primary goal of using active packaging is to extend the shelf life of products inside the package. This research aimed to study the properties of LLDPE with Ag-zeolite nanoparticles to extend product shelf-life.&nbsp;<strong>Methods/Statistical analysis:</strong>&nbsp;In this research, LLDPE films combined with Ag-zeolite at 0.5 and 1 % wt. were produced by using a twinscrew extruder and a blown film extruder. The inspected properties included the physical properties, the mechanical properties, and the barrier properties. The data were analyzed by performing the one-way ANOVA analysis and paired comparison analysis, using the IBM SPSS software with the confidential statistics of 95%.&nbsp;<strong>Findings:</strong>&nbsp;The analyzed physical properties of the plastic films in this study showed that, when Ag-zeolite was added to the LLDPE, the yellowness index of the film increased. When Ag-zeolite was added to LLDPE plastic films, it did not appear to alter the tested plastics&rsquo; melting temperature (Tm), crystallization temperature (Tc), or the crystallinity of all the plastic films and conformed to the FT-TR and XRD curves. Ag- zeolite agent&rsquo;s dispersion on the film&rsquo;s gloss seemed to be aligned with the SEM images. However, although adding an Ag-zeolite agent into LLDPE film contributed to the change in color, it did not affect the polymer&rsquo;s characteristics and structure. Lastly, the mechanical properties across the LLDPE plastic films mixed with Ag-zeolite agent statistically significantly decreased, but the barrier properties of the films did not change.&nbsp;<strong>Applications:</strong>&nbsp;The study results could be an alternative for manufacturing active packaging.&nbsp;<strong>Novelty:</strong>&nbsp;Color changing of LLDPE film mixed with Ag-zeolite agent, but it did not change the polymer&rsquo;s characteristic or structure. <strong>Keywords:</strong>&nbsp;Antibacterial agent; Linear lowdensity polyethylene (LLDPE); Physical properties; Plastic film; Silver zeolite nanoparticles (Ag-zeolite); Yellowness index &nbsp;
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Більше джерел

Дисертації з теми "Film plastic"

1

Marsh, Richard. "Plastic film recycling from waste sources." Thesis, Cardiff University, 2005. http://orca.cf.ac.uk/56031/.

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Анотація:
This thesis focuses on the thermal recycling of plastic film materials that have originated from waste sources. The problems with waste plastic film recycling are outlined. The key aspects of this work included waste management, economics, logistics, the recycling industry, aspects of polymer science and the effect of the consumer environment on material properties of polymers. The aim of the research was to determine how these problems can be best understood and solved in order to prove that plastic film recycling is a sound opportunity from a financial and engineering point of view. A series of novel experimental studies were designed and performed to evaluate the effect that a film's life-cycle has on the material properties of the product. These studies involved exposing a number of polyethylene samples to factors such as heat cycling and dust contamination whilst measuring the characteristics of the material before and after exposure. Material tests included evaluation of mechanical and rheological properties, crystallinity content and molecular weight. As a natural continuation of the behaviour and characteristic studies already highlighted, two novel products namely a geomembrane and aggregate drainage material were manufactured. Tests were undertaken to determine the suitability of these under harsh environmental conditions. It was found that both materials were capable of meeting specifications laid down for application as engineering barriers. With the effects of a products' life-cycle understood, the investigation then involved the development of a predictive model. This anticipated the effects of these life-cycle factors and calculated the resultant physical properties of a plastic film material once it had been thermally recycled. This model used correlations between the key factor and the crystallinity of the polymer in order to determine the degradative effects. Results showed that key material properties could be modelled to within 15% accuracy of those found by experimental verification. To assess the feasibility of recycling plastic film an economic model was produced to simulate the financial performance of a recycling plant. Model inputs were based on industrial experiences and were used in conjunction with a series of operating parameters to outline economic feasibility. The simulation showed that profitability was closely related to the quality of the input material, the cost of procuring waste feedstocks and the price paid for the final product. Overall the thesis showed that plastic film recycling is a viable concept, provided recyclers sufficiently improve the quality of feedstocks by separation and washing, procure a reliable source of feedstock and operate a facility that is adaptable to changes in material condition. These factors must be undertaken with sound financial management to ensure that a profitable product is produced. Although there is a small number of possible recycled products to be produced from plastic film, more development is needed to create a demand for waste feedstock materials. This will ensure that mandatory recycling targets are met for government and businesses that are required by European legislation. This investigation has outlined many of the key factors to allow film recycling businesses to expand into future markets and produce recycled products of equal quality to that of existing products made from virgin stocks.
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2

Strater, Kurt F. "Countercurrent cooling of blown film." Thesis, McGill University, 1985. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=66003.

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3

Chang, Q. "Colorimetric and fluorimetric plastic film sensors for carbon dioxide." Thesis, Swansea University, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.636226.

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Анотація:
Medical diagnosis and treatment of critically ill patients require frequent monitoring of carbon dioxide partial pressure in the human body. Along with the traditional methods (i.e. IR capnography and Severinghaus electrode), colorimetric and fluorimetric CO<SUB>2</SUB> sensors are playing an increasingly important role in detection of correct intubation, intensive care and blood CO<SUB>2</SUB> analysis, due to its advantages of cheapness in cost, miniature in size, and mechanically robust. In Chapter One an outline of the recent development of such sensor systems is given, and their applications background in the biomedical area is discussed. Chapter Two focuses on the experimental techniques used in these studies. In Chapters Three and Four the equilibrium responses of three new colorimetric and one fluorescence plastic film sensors for CO<SUB>2</SUB> as a function of % CO<SUB>2</SUB> and temperature are described, respectively. The results fit a model in which there is a 1:1 equilibrium reaction between the deprotonated form of the dye (present in the film as an ion pair) and CO<SUB>2</SUB>. The basic theory behind conventional colorimetric and fluorimetric optical sensors for CO<SUB>2</SUB> is proposed and examined in Chapter Five. Special attention is given to the effect on sensor response of the key parameters of initial base concentration and dye acid dissociation constant, K<SUB>D</SUB>. In Chapter Six the diffusion-controlled response and recovery behaviour of a naked optical film sensor with a hyperbolic-type reponse changes in analyte concentration in a system under test is approximated using a numerical model, followed by a second part in which a systematic, experimental investigation on the kinetics, responses and recovery behaviour of the colorimetric film sensors is described. Finally, in Chapter Seven, a plasticised and unplasticised polymer colorimetric film sensor for gaseous CO<SUB>2</SUB> is tested as a sensor for dissolved CO<SUB>2</SUB>. The plasticised form of the film sensor develops a measurable degree of opacity when exposed to aqueous solution, while an unplasticised polymer remains largely clear upon exposure to aqueous solution and it is shown that it also functions as a quantitative sensor for dissolved CO<SUB>2</SUB> over the range 0-4% CO<SUB>2</SUB>.
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4

Bas, Derek. "Laser Beam Steering with Thin Film GaAs on Plastic." Bowling Green State University / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1277119321.

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5

Wentzel, John P. "An investigation into surface effects in thin film plastic scintillators." Master's thesis, University of Cape Town, 1992. http://hdl.handle.net/11427/18348.

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Анотація:
An investigation into the luminescent response of thin film plastic scintillators as a function of their method of preparation is made. Investigations are carried out on NE102A and NE118 using four different methods of preparation. It is found that the Birks model for luminescence as a function of film thickness successfully explains the response in three of the four methods of preparation, but fails to explain the response of thin films prepared on a glass surface. These films show an unexpected non-linearity in their behaviour. It is proposed that the behaviour in these films can be explained in terms of the existence of surface regions in these films. A model based on the existence of these surface regions is prepared. It is further proposed that, in general, the luminescent response of thin films of plastic scintillator is dependent on their method of preparation.
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6

Hur, Sung-ho. "Model based cross-directional monitoring and control of plastic film thickness." Thesis, University of Strathclyde, 2010. http://oleg.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=25796.

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Анотація:
The main topics of this research are modelling, fault monitoring, and cross-directional control of a plastic film manufacturing process operated by DuPont Teijin Films Ltd. The developed model is of high dimension and built using the first-principles of chemical and mechanical engineering, such as equations for mass transfer, heat transfer, and the flow of viscous fluids in addition to empirical knowledge related to the behaviour of polymer. The model in turn provides a safe off-line platform for developing new cross-directional control and fault monitoring systems. As with other sheet-forming processes, such as papermaking and steel rolling, the plastic film manufacturing process employs large arrays of actuators spread across a continuously moving sheet to control the cross-directional profiles of key product properties. In plastic manufacturing, the main control property is finished product thickness profile as measured by a scanning gauge downstream from the actuators. The role of the cross-directional control system is to maintain the measured cross-directional profiles of plastic properties on target. The second part of this research develops a novel cross-directional controller, which is in turn demonstrated by application to the first-principles model. Fault monitoring systems can be broadly classified into 3 categories: model-based, data-driven, and knowledge-based. The third part of this research introduces a novel model-based fault monitoring system. The system is demonstrated by application to both the first-principles model and industrial data extracted from the real-life plant.
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7

Lin, Qian. "A Plastic-Based Thick-Film Li-Ion Microbattery for Autonomous Microsensors." Diss., CLICK HERE for online access, 2006. http://contentdm.lib.byu.edu/ETD/image/etd1175.pdf.

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8

Khatami, Hassan. "Influence of titanium dioxide pigments on the thermal and photochemical oxidation of low density polyethylene film." Thesis, Manchester Metropolitan University, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.283081.

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9

Bastarrachea, Gutiérrez Luis Javier. "Biodegradable poly(butylene adipate-co-terephtalate) film incorporated with nisin characterization, effectiveness against Listeria innocua, and nisin release kinetics /." Pullman, Wash. : Washington State University, 2010. http://www.dissertations.wsu.edu/Thesis/Spring2010/l_bastarrachea_031010.pdf.

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Анотація:
Thesis (M.S. in biological and agricultural engineering)--Washington State University, May 2010.<br>Title from PDF title page (viewed on June 14, 2010). "Department of Biological Systems Engineering." Includes bibliographical references.
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10

Butterfield, Craig. "A novel laboratory dispersive and distributive minimixer and applications : development of a new minimixer that can duplicate mixing which occurs in a large twin screw extruder." Thesis, University of Bradford, 2009. http://hdl.handle.net/10454/4930.

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The mixing of additives into a plastic is an extremely important step in the plastics industry, necessary for the manufacture of almost every conceivable product. Therefore the costs in developing new products can prove very expensive as the testing is usually carried out using full scale machines, usually using twin screw extruders because they are able to provide good dispersive and distributive mixing. This is particularly important when compounding difficult to disperse additives and nano-additives. What is required is a machine that can replicate the mixing abilities of a twin-screw extruder but on a laboratory scale. There have been attempts by industry to develop smaller machines, such as the Thermo Scientific HAAKE Minilab II Micro Compounder which processes on the scale of 7 cm3 of material volume. This can be too small for some needs and therefore a machine is required to produce material on the 10g to 100g scale. To this end a laboratory mixer of novel design was devised and its mixing performance was assessed using conductive carbon black and compared against the Thermo Scientific HAAKE Minilab II Micro Compounder, a 19 mm co-rotating twin-screw extruder and a 40 mm co-rotating twin-screw extruder. Carbon black was used because mixing performance can be assessed by measuring the minimum carbon loading necessary to induce electrical conductivity. It was found that the minimixer was able to induce electrical conductivity at loading of 5.75% but the comparison with the other machines proved difficult as the achievement of the threshold at which semi-conductivity occurred appeared independent of shear rate and mixing duration.
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Книги з теми "Film plastic"

1

M, Finlayson Kier, ed. Plastic film technology. Technomic Pub. Co., 1989.

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2

Kanai, T. Film processing. Distributed in the USA and in Canada by Hanser Publications, 2011.

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3

Kanai, T. Film processing. Distributed in the USA and in Canada by Hanser Publications, 2011.

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4

Cantor, Kirk. Blown film extrusion. 2nd ed. Hanser Publications, 2011.

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5

Campbell, G. A. (Gregory A.), ed. Film processing. 2nd ed. Hanser Publishers, 2014.

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6

A, Campbell G., ed. Film processing. Hanser Publishers, 1999.

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7

T, Kanai, and Campbell G. A, eds. Film processing. Hanser, 1999.

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8

Wicks, Zeno W. Film formation. Federation of Societies for Coatings Technology, 1986.

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9

FILM-PAK, '87 (1st 1987 Atlanta Ga ). Proceedings of Film-Pak '87: First International Conference on Advanced Films, Foils, and Multilayer Structure. Ryder Associates, 1987.

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10

Pardos, Françoise. Plastic films: Situation and outlook : a Rapra market report. Rapra Technology Limited, 2004.

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Частини книг з теми "Film plastic"

1

Kaiser, Cletus J. "Plastic Film Capacitors." In The Capacitor Handbook. Springer Netherlands, 1993. http://dx.doi.org/10.1007/978-94-011-8090-0_3.

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2

Kumar, Rohitashw, and Vijay P. Singh. "Plastic Film Properties." In Plasticulture Engineering and Technology. CRC Press, 2022. http://dx.doi.org/10.1201/9781003273974-2.

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3

Penix, Judith A. "Thermoforming of Plastic Film and Sheet." In SPI Plastics Engineering Handbook of the Society of the Plastics Industry, Inc. Springer US, 1991. http://dx.doi.org/10.1007/978-1-4615-7604-4_13.

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4

Wakai, Fumihiro, and Naoki Kondo. "Solution-Precipitation Creep Model for Superplastic Ceramics with Intergranular Liquid Film." In Plastic Deformation of Ceramics. Springer US, 1995. http://dx.doi.org/10.1007/978-1-4899-1441-5_23.

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5

Ma, Yu Zhen, S. H. Ye, F. Duan, and Y. Zheng. "A Plastic Film Thickness On-Line Detecting System." In Key Engineering Materials. Trans Tech Publications Ltd., 2005. http://dx.doi.org/10.4028/0-87849-977-6.387.

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6

Liu, Hui, Wencai Xu, and Dongli Li. "Development of New Plastic Packaging Film for Food Packaging." In Lecture Notes in Electrical Engineering. Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-10-7629-9_99.

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7

Miah, Md Salim, Ibrahim Said AL-Shukaili, Mohammad Sayeed Hossain, and Abid Ali Khan. "Analysis of PET Film Flow During Plastic Manufacturing Process." In Proceedings of the First International Conference on Aeronautical Sciences, Engineering and Technology. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-7775-8_8.

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8

Levine, Mark R., and Essam El Toukhy. "Dysfunctional Tear Film, Etiology, Diagnosis, and Treatment in Oculoplastic Surgery." In Smith and Nesi’s Ophthalmic Plastic and Reconstructive Surgery. Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4614-0971-7_41.

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9

Levine, Mark R., and Essam A. El Toukhy. "Dysfunctional Tear Film, Etiology, Diagnosis, and Treatment in Oculoplastic Surgery." In Smith and Nesi’s Ophthalmic Plastic and Reconstructive Surgery. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-41720-8_31.

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10

Ng, Emily. "Belly of the World: Toxicity, Innocence, and Indigestibility in Plastic China." In Planetary Hinterlands. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-24243-4_2.

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AbstractIn 2018, on the eve of the Trump administration’s trade war against China, the Xi administration inaugurated a ban on most plastic waste imports. Set in a small family-run plastic waste processing factory, Wang Jiuliang’s documentary Plastic China (2016) was rumored to have been an impetus for the ban. Approaching Plastic China as a cinematic portrayal of hinterlands, this chapter considers how ecocritical momentum is produced in the film by juxtaposing an aesthetics of the toxic sublime and a temporality of stagnation with the child as a figure of innocence and potentiality. Such waste and waste-times are not exclusive to China, but point to a reluctantly shared body between post/socialist and late capitalist worlds, as stubborn materials move through the intimate organs of the global digestive system.
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Тези доповідей конференцій з теми "Film plastic"

1

Kean, Robert T., and Boris A. Miksic. "Improved Packaging Film Incorporating Vapor Phase Corrosion Inhibitors and High Recycle Content." In CORROSION 2016. NACE International, 2016. https://doi.org/10.5006/c2016-07283.

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Abstract Vapor Phase Corrosion Inhibitors (VCIs) are used for safe and cost-effective protection of a wide range of metal articles. One large market includes packaging materials for storage and transportation of metal parts. Plastic packaging films can be readily impregnated with VCIs to provide corrosion protection, in addition to the basic physical barrier (against water, dirt, vapors) afforded by the plastic. Generally, VCI containing plastic films are recyclable. Likewise, they can be made from recycled plastics. However, when manufacturing with commercially available recycle streams, use of the recycled plastic is often limited by contamination and extent of polymer degradation. This paper will discuss the benefits of using in-house recycling lines; including improved environmental profile, better quality, and cost saving. The results are supported by data and experience with in-house recycling lines at two production facilities.
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2

Mungu�a-L�pez, Aurora del C., Panzheng Zhou, Ugochukwu M. Ikegwu, Reid C. Van Lehn, and Victor M. Zavala. "A Fast Computational Framework for the Design of Solvent-Based Plastic Recycling Processes." In Foundations of Computer-Aided Process Design. PSE Press, 2024. http://dx.doi.org/10.69997/sct.175924.

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Multilayer plastic films are widely used in packaging applications because of their unique properties. These materials combine several layers of different polymers to protect food and pharmaceuticals from external factors such as oxygen, water, temperature, and light. Unfortunately, this design complexity also hinders the use of traditional recycling methods, such as mechanical recycling. Solvent-based separation processes are a promising alternative to recover high-quality pure polymers from multilayer film waste. One such process is the Solvent-Targeted Recovery and Precipitation (STRAPTM) process, which uses sequential solvent washes to selectively dissolve and separate the constituent components of multilayer films. The STRAPTM process design (separation sequence, solvents, operating conditions) changes significantly depending on the design of the multilayer film (the number of layers and types of polymers). Quantifying the economic and environmental benefits of alternative process designs is essential to provide insights into sustainable recycling and film (product) design. In this work, we present a fast computational framework that integrates molecular-scale models, process modeling, techno-economic and life-cycle analysis to evaluate STRAPTM designs. The computational framework is general and can be used for complex multilayer films or multicomponent plastic waste streams. We apply the proposed framework to a multilayer film commonly used in industrial food packaging. We identify process design configurations with the lowest economic and environmental impact. Our analysis reveals trends that can help guide process and product design.
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3

Miksic, Boris A., Bob Berg, and Bob Boyle. "Modern Packaging Materials for Electronic Equipment: Biodegradable and Vapor Phase Corrosion Inhibitor Treated." In CORROSION 2008. NACE International, 2008. https://doi.org/10.5006/c2008-08674.

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Abstract Biodegradable products are becoming an ever increasing forced decision rather than a choice, due to the swelling landfills in the U.S. and throughout the world. With the biodegradation rate of roughly one hundred years for standard petrochemical derived plastics, there is simply no more room for these plastics. One of the biggest culprits of this problem, are non biodegradable plastic bags or films used for consumer use and in industrial shipping. More and more companies are distributing biodegradable bags or films but with customer’s alike, giving feedback that price and mechanical properties of these mainly starch based materials, are less than adequate for their application. Therefore, there is a demand for a biodegradable bag or film, with mechanical properties comparable to non biodegradable plastics but with a similar cost. With this in mind, the packaging of electrical equipment using a biodegradable film with similar properties and price to a non biodegradable film is sought [1]. This paper presents a description of a biodegradable film that will provide excellent contact, barrier and vapor phase corrosion inhibition, along with static decay and surface resistivity values, that fall into the anti-stat range, otherwise known as a Anti-stat Biodegradable Corrosion inhibiting film (ABC film).
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4

Ikegwu, Ugochukwu M., Victor M. Zavala, and Reid C. Van Lehn. "Screening Green Solvents for Multilayer Plastic Films Separation." In Foundations of Computer-Aided Process Design. PSE Press, 2024. http://dx.doi.org/10.69997/sct.162050.

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This paper introduces a computational framework for selecting green solvents to separate multilayer plastic films, particularly those challenging to recycle through mechanical means. The framework prioritizes the selective dissolution of polymers while considering solvent toxicity. Initial screening relies on temperature-solubility dependence, utilizing octanol-water partition coefficients (LogP) to identify non-toxic solvents (LogP = 3). Additionally, guidelines from GlaxoSmithKline (GSK), Registration, Evaluation, Authorization, and Restriction of Chemical Regulation (REACH), and the US Environmental Protection Agency (EPA) are employed to screen for green solvents. Molecular-scale models predict temperature-dependent solubilities and LogP values for polymers and solvents. The framework is applied to identify green solvents for separating a multilayer plastic film composed of polyethylene (PE), ethylene vinyl alcohol (EVOH), and polyethylene terephthalate (PET). The case study demonstrates the framework's effectiveness in identifying environmentally friendly solvents and balancing trade-offs between solvent toxicity and solubility. Furthermore, the framework informs process design by screening for suitable green solvents in selective dissolution processes, potentially leading to the development of more sustainable dissolution processes and the identification of easily recyclable polymer blends in multilayer plastic films.
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5

Boyd, J. L., and Al Siegmund. "Plastic Coated Tubular Goods: Proper Selection, the Key to Success." In CORROSION 1989. NACE International, 1989. https://doi.org/10.5006/c1989-89214.

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Abstract A review of generic organic coatings available for downhole environments is presented. Key factors in the coating selection process is discussed as follows: powder versus liquid coatings, thin film versus thick film, chemical environnent and resistance, physical environment, flexibility, abrasion resistance, and impact resistance. Advantages of each generic type as well as specific limitations is included.
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6

Abrego, L. "Experience with Internally Plastic Coated Production Tubing at McElmo Dome Unit." In CORROSION 1986. NACE International, 1986. https://doi.org/10.5006/c1986-86335.

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Abstract The start-up completion scheme at the CO2 source wells in southwestern Colorado (McElmo Dome) specified tubing that was internally plastic coated (IPC). Most of the tubing was coated with a thin film phenolic and a limited amount of tubing was coated with a thick film epoxy-phenolic. Ryton* (polyphenylene sulfide) was applied to the center J-section of the couplings. The experience of trying to attain quality control from the coating applicators precipitated the development of coating specifications. The highlights of both the quality control of the coating applicators and the coating specifications which evolved are presented. Additionally, the production experience gained with the IPC tubing, which resulted in corrosion failures, is also reported. Production histories and photographs of the failures are included. The corrosion failures resulted in a change from IPC tubing to stainless steel tubing.
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7

Eigenmann, Hans P., W. Lobsiger, and Rudolf Suter. "New developments in ophthalmic coatings on plastic lenses." In Third International Conference on Thin Film Physics and Applications, edited by Shixun Zhou, Yongling Wang, Yi-Xin Chen, and Shuzheng Mao. SPIE, 1998. http://dx.doi.org/10.1117/12.300648.

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8

Takayama, T., Y. Ohno, Y. Goto, et al. "A CPU on a plastic film substrate." In Digest of Technical Papers. 2004 Symposium on VLSI Technology, 2004. IEEE, 2004. http://dx.doi.org/10.1109/vlsit.2004.1345496.

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9

He, Ping, Chao Liu, Qi Li, and Shengmei Cao. "Non-contact measurement of plastic film thickness." In 2014 33rd Chinese Control Conference (CCC). IEEE, 2014. http://dx.doi.org/10.1109/chicc.2014.6896241.

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10

Carey, Paul G., Patrick M. Smith, Steven D. Theiss, Paul Wickboldt, and Thomas W. Sigmon. "Polycrystalline thin-film transistors on plastic substrates." In Electronic Imaging '99, edited by Bruce Gnade and Edward F. Kelley. SPIE, 1999. http://dx.doi.org/10.1117/12.344632.

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Звіти організацій з теми "Film plastic"

1

Rongsen, L. The Application of Plastic Film Technology in China. International Centre for Integrated Mountain Development (ICIMOD), 1994. http://dx.doi.org/10.53055/icimod.179.

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2

Percival, Stephen J. Protective Plastic Film Removal from Stainless Steel for Reytek Corporation. Office of Scientific and Technical Information (OSTI), 2019. http://dx.doi.org/10.2172/1592897.

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3

Berland, B., D. Kershner, N. Gomez, et al. Low Cost Electrochromic Film on Plastic for Net-Zero Energy Buildings. Office of Scientific and Technical Information (OSTI), 2013. http://dx.doi.org/10.2172/1095124.

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4

Gilbert, G., E. Guyer, and D. Brownell. Plastic film heat exchanger development project field test at Prime Tanning Company, Phase 3. Office of Scientific and Technical Information (OSTI), 1989. http://dx.doi.org/10.2172/5255589.

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5

Christman. L51577 Prediction of SCC Susceptibility Based on Mechanical Properties of Line Pipe Steels. Pipeline Research Council International, Inc. (PRCI), 1988. http://dx.doi.org/10.55274/r0010278.

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If a relationship between the deformation properties of a line pipe steel and its stress-corrosion cracking resistance can be established, then steels may be selected or designed for improved stress-corrosion resistance, based on their mechanical properties. Benefit: In this research program three line pipe steels, removed from long-term service, were examined to determine if there is a correlation between their mechanical properties and stress-corrosion cracking resistance. The hypothesis was that the steel with the greatest tendency for strain hardening, under cyclic and monotonic stress conditions would also have the highest threshold stress for stress-corrosion crack initiation. This hypothesis was verified by the laboratory experiments, which showed the steel with the greatest tendency for strain hardening to have the highest resistance to stress-corrosion. Two other steels, with distinctly lower resistance to plastic deformation, had lower threshold stresses for stress-corrosion. This observation is consistent with the present concept of stress-corrosion crack growth, which holds that crack tip dissolution, and hence crack propagation, occurs because localized plastic deformation ruptures passive films or prevents film formation resulting in crack growth. Result: The cyclic strain behavior of these three steels is consistent with their monotonic stress-strain curves. Both Steels A and B showed a point of extreme strain as the cyclic stress was increased. Their monotonic stress-strain curves both showed well pronounced yield points above which a considerable strain accompanied a small stress increment (low strain hardening). For both steels the rapid increase in cyclic strain occurred at approximately the elevated temperature yield point (\45 ksi for Steel A
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6

Reed, David W., Jeffrey A. Lacey, and Vicki S. Thompson. Separation and processing of plastic films. Office of Scientific and Technical Information (OSTI), 2018. http://dx.doi.org/10.2172/1468644.

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7

Franke, J., M. O. Liedke, P. Dahmen, et al. Influence of coating structure of an SiOx barrier coating on a PET substrate on water vapor permeation activation energy. Universidad de los Andes, 2024. https://doi.org/10.51573/andes.pps39.gs.nn.1.

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The application of plasma polymerized silicon-based coatings on plastic substrates is an effective way to adjust the permeability of the substrate. However, the permeation mechanisms are yet not fully understood. Here, the activation energy of permeation can offer valuable insights. In order to understand how the activation energy of permeation depends on the coating structure, five silicon-based coatings with varying oxygen content were analyzed, which led to property modifications ranging from silicon-oxidic to silicon-organic. Positron annihilation spectroscopy was employed to characterize the free volume and quartz crystal microbalance measurements were used to determine the density of the coating. These results were compared to water vapor permeation measurements with a temperature variation in the range of 15°C to 50°C. As expected, the silicon-organic coatings do not significantly impact the permeation rates, while the silicon-oxidic coatings do exhibit a barrier effect. The density of the coatings increases for the more silicon-oxidic coatings. A coating with an unusually high oxygen to precursor ratio forms the exception in both permeation and density. The free volume appears to increase for the more silicon-organic coatings. The pore wall chemistry is also affected, hinting at a structural transition from silicon-organic to silicon-oxidic. With this approach, we aim for an in-depth understanding of the chemical structure of silicon-based thin film coatings and its influence on gas permeation through those coatings.
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8

Pitt, Jordan A., Neelakanteswar Aluru, and Hahn Hahn. Supplemental materials for book chapter: Microplastics in Marine Food Webs. Woods Hole Oceanographic Institution, 2022. http://dx.doi.org/10.1575/1912/29556.

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The identification of microplastics (MPs; 1 µm - 5 mm) and the inferred presence of nanoplastics (NPs; &lt;1 µm) in a wide variety of marine animals, including many seafood species, has raised important questions about the presence, movement, and impacts of these particles in marine food webs. Understanding microplastic dynamics in marine food webs requires elucidation of the processes involved, including bioaccumulation, trophic transfer, and biomagnification. However, in the context of microplastics and nanoplastics these concepts are often misunderstood. In this chapter, we provide a critical review of the literature on the behavior of plastic particles in marine food webs. We find clear evidence of trophic transfer, equivocal evidence for bioaccumulation, and no evidence for biomagnification. We also identify a number of knowledge gaps that limit our ability to draw firm conclusions at this time. These supplemental documents are in support of an invited chapter to be published in this book: S.E. Shumway and J.E. Ward (Eds.) Plastics in the Sea: Occurrence and Impacts (Elsevier 2023).
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9

Bourcier, R. J., J. J. Sniegowski, and V. L. Porter. A novel method to characterize the elastic/plastic deformation response of thin films. Office of Scientific and Technical Information (OSTI), 1996. http://dx.doi.org/10.2172/399701.

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10

Karst, Adèle, Michel Bouquey, Jérémie Soulestin, Cédric Samuel, and Thibault Parpaite. Formulation of highly electro-conductive thermoplastic composites using PEDOT-based fillers with controlled shape factor. Universidad de los Andes, 2024. https://doi.org/10.51573/andes.pps39.gs.pc.2.

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The objective of this study is to develop a new conductive thermoplastic material with superior electrical properties. Currently, conductive polymers are typically filled with carbon or metallic particles [1]. However, these filled thermoplastics exhibit drawbacks such as high rigidity, toxicity, and high viscosity [2]. An alternative approach investigated in this work is to substitute these fillers with intrinsically conductive polymers like Poly(3,4-ethylenedioxythiophene) (PEDOT). PEDOT can achieve exceptional electrical conductivities (over 1000 S.cm-1) when combined with polymeric dopants like poly(styrene sulfonate) (PSS) and is frequently used in thin films or gels in medical and energy applications [3]. However, incorporating PEDOT into the conventional hot melt processes of the plastic industry remains challenging [1].
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