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Artykuły w czasopismach na temat „Plastic disintegration”

Autor: Grafiati

Data publikacji: 22 listopada 2024

Data aktualizacji: 31 lipca 2025

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1

Intaraksa, Parichat, Yositar Rudeekit, Pongsaks Siriyota, and Thanawadee Leejarkpai. "Comparative Study of the Bio-Disintegration Behavior of Polylactic Acid under Laboratory and Pilot-Scale Composting Conditions." Advanced Materials Research 747 (August 2013): 678–81. http://dx.doi.org/10.4028/www.scientific.net/amr.747.678.

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In recent years, compostable plastics have gained a great attention as green materials due to the problems of more plastic waste generated each year over the world. One attractive of compostable plastics is that after use they can be biodegraded by natural microorganisms in the composting process within a specified period of time. Degree and rate of disintegration during composting is an important requirement that is used to determine the compostability of these plastics. This research work studied and compared the disintegration behaviors of PLA laboratory and pilot-scale composting condition

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Ferrero, Pablo. "Plastic waste to sustainable solutions: accelerating the biodegradation of syn-thetic plastics." Project Repository Journal 18, no. 1 (2023): 60–62. http://dx.doi.org/10.54050/prj1820693.

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Plastic waste to sustainable solutions: accelerating the biodegradation of syn-thetic plastics BioICEP combines chemical and biological methods to turn fossil-based plastic waste into natural, biodegradable substitutes for the packaging and pharma industries. It combines three technologies that enhance, accelerate and increase the degradation of plastics to levels far beyond what is currently possible. A triple-action depolymerization system breaks down plastic waste through chemical disintegration processes, biocatalytic digestion and microbial consortia.

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Peng, Liang, Wenxue Du, Ganggang Bai, et al. "Investigation of the Disintegration Characteristics of Neogene Mudstone at Different Burial Depths." Buildings 14, no. 1 (2024): 227. http://dx.doi.org/10.3390/buildings14010227.

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The complex structure of Neogene mudstone plays an important role in geological disasters. A close relationship exists between the mechanisms of mudstone landslides and the disintegration characteristics of rocks. Therefore, understanding the disintegration characteristics of Neogene mudstone at different depths is crucial for enhancing engineering safety and assessing landslide stability. This study employed Neogene mudstone from different depths to perform disintegration and plastic limit experiments and revealed the sliding mechanisms of landslides involving Neogene mudstone, providing theo

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4

Zhu, Lei, Xin Jiang Song, and Bao Ning Hong. "Analysis of Shallow Landslides Stability of Coal Measure Soil through Contact Elastic-Plastic FEM." Advanced Materials Research 243-249 (May 2011): 2076–83. http://dx.doi.org/10.4028/www.scientific.net/amr.243-249.2076.

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In order to reveal the mechanism of deformation, disintegration and failure of shallow landslides of coal measure soil, through contact elastic-plastic FEM with shear strength reduction, the paper analyzes shallow landslides stability, calculates shallow landslides safety factors, and reveals the mechanism of deformation, disintegration and failure of shallow landslide of coal measure soil. The results are shown as follows: during shallow landslides of coal measure soil, the displacement of sliding mass sliding along sliding surface, the plastic strain of sliding mass and sliding mass sliding

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Vaverková, Magdalena, František Toman, Dana Adamcová, and Jana Kotovicová. "Study of the Biodegrability of Degradable/Biodegradable Plastic Material in a Controlled Composting Environment." Ecological Chemistry and Engineering S 19, no. 3 (2012): 347–58. http://dx.doi.org/10.2478/v10216-011-0025-8.

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Study of the Biodegrability of Degradable/Biodegradable Plastic Material in a Controlled Composting EnvironmentThe objective of this study was to determine the degrability/biodegradability of disposable plastic bags available on the market that are labeled as degradable/biodegradable and those certified as compost. The investigated materials were obtained from chain stores in the Czech Republic and Poland. Seven kinds of bags (commercially available) were used in this study. One of them was a disposable bag made of HDPE and mixed with totally degradable plastic additive (TDPA additive). Anothe

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Eich, Andreas, Miriam Weber, and Christian Lott. "Disintegration half-life of biodegradable plastic films on different marine beach sediments." PeerJ 9 (August 10, 2021): e11981. http://dx.doi.org/10.7717/peerj.11981.

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The seafloor is considered the major sink for plastic debris in the world’s oceans. Biodegradable polymers are available on the market as a substitute for conventional plastic and could potentially end up in the same environment. To gain more insight into the effects of different sediments on the degradation rate of biodegradable plastic we performed two iterative seawater tank experiments. First, to test the effect of sediment grain size, film of Mater-Bi HF03V, a blend of thermoplastic starch and biodegradable polyesters, was placed on the surface of mud as well as on four different grain si

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Chong, Zhi Kai, Alexander Hofmann, Marie Haye, Sharon Wilson, Ihsanullah Sohoo, and Kerstin Kuchta. "Lab-scale and on-field industrial composting of biodegradable plastic blends for packaging." Open Research Europe 2 (August 23, 2022): 101. http://dx.doi.org/10.12688/openreseurope.14893.1.

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Background: The acceptance of compostable plastic packaging in industrial composting plants is not universal despite available certification for compostability due to the persistence of compostable plastic residues reported by some industrial plants. This study aims to better understand this discrepancy by comparing the disintegration rate of two compostable plastic blends designed for rigid packaging (polylactic acid based) and soft packaging (polybutylene succinate based) between a controlled lab-scale test and an on-field test in an industrial composting plant. Methods: The thermophilic lab

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Mikhailov, S. V., and S. N. Danilov. "Helical-chip disintegration in the turning of plastic materials." Russian Engineering Research 33, no. 3 (2013): 176–78. http://dx.doi.org/10.3103/s1068798x13030131.

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Mukri, A. K., J. H. Tan, S. M. Tahir, M. S. Anuar, and S. M. Yusoff. "Compaction behaviour of mannitol-cocoa powder mixtures and their resulting tablet strength and disintegration characteristics." Food Research 5, S1 (2021): 182–87. http://dx.doi.org/10.26656/fr.2017.5(s1).038.

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Cocoa powder is an important ingredient in the confectionery industry and, mannitol is an alternative sugar alcohol. In this work, mannitol powder was mixed with cocoa powder and compacted into tablet form via the uniaxial die compaction process. The frictional, compaction, tablet mechanical and disintegration properties were studied due to their importance in characterizing the behaviour of the tablets during processing and its final product characteristics at varying mannitol contents. The composition of mannitol in the mannitol-cocoa tablet varied at 95% w/w, 50% w/w and 5% w/w, while pure

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10

Tuong, Thi Nguyet Anh, Thi Thuy Le, Hoang Linh Doan, et al. "Evaluation of the disintegrability of eco-friendly packaging under laboratory and pilot-scale composting conditions." Ministry of Science and Technology, Vietnam 65, no. 10DB (2023): 67–72. http://dx.doi.org/10.31276/vjst.65(10db).67-72.

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The growing production demand and promising applications of biodegradable plastic have spurred interest in assessing the biodegradability of this material. Disintegration is the first stage of the biodegradation process and therefore it affects the most important on the biodegradability of materials. This research focuses on evaluating and comparing the disintegration ability of eco-friendly packaging, which is being produced and commonly consumed in Vietnam, under industrial composting conditions at laboratory scale according to TCVN 12409:2020 standard and pilot scale according to TCVN 12408

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Rajesh, A., Sridhar.P, Ugendiran.M, and Sivasankaran P. "Reusing of Waste Plastics to Fuel by Pyrolysis Process." Journal of Advancements in Material Engineering 5, no. 1 (2020): 29–44. https://doi.org/10.5281/zenodo.3783939.

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Over ton of plastic is being manufactured every year to fulfil the enthusiasm of the bleeding edge world. Plastic is made by polymerization of hydrocarbons. This hydrocarbon is having high sub-nuclear mass and may contain some extraordinary added substances to improve the capacities of the last thing. Plastic is required one since which is strong, intense, and unobtrusive and has different various properties. Expulsion of waste plastic is of exceptional stress for everybody as it requires some investment to separate at whatever point left at its own. All the while, constant augmentation in ind

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12

Chen, Qing Feng, Zhong Hui Chen, Ning Ma, Wei Zhang, and Hui Li. "The Zonal Disintegration Law within Coal in Front of Working Face in Deep Coal Mine." Applied Mechanics and Materials 353-356 (August 2013): 1082–89. http://dx.doi.org/10.4028/www.scientific.net/amm.353-356.1082.

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The mining coal in the front of long wall face consists of elastic zone, plastic zone and fracture zone. Based on the research of zonaldisintegration of surrounding rock mass in deep tunnel, the zonal disintegration phenomenon of deep coal mine was analyzed by using the theoretical analysis method. On the basis of the Griffith theory, the internal and external boundary formulas of fracture zone and the mechanical criteria of zonal disintegration were obtained. The research shows that the essence of zonal disintegration is the tensile failure and brittle tension crack failure under the abutment

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Filonenko, M. Yu, and S. B. Piliaieva. "STUDY OF THE EFFECT OF PRELIMINARY PLASTIC DEFORMATION IN THE PROCESS OF DISSOLUTION DURING TEMPERING OF LOW-CARBON AND BORON-CONTAINING ALLOYS." Science and Transport Progress, no. 29 (October 25, 2009): 202–5. http://dx.doi.org/10.15802/stp2009/14149.

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In the paper the influence of preliminary deformation on disintegration of martensite in boron-containing and carbonic alloy is explored. It is shown that at the small degree of deformation (7 per cent) both in low-carbonic and boron-containing alloys the process of martensite disintegration takes place less intensively. The increase of degree of preliminary deformation in a boron-containing alloy is instrumental in more even distribution of boron-cementite particles appearing as a result of martensite disintegration.

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Huidobro-Medina, Erik Saúl, and María Neftalí Rojas-Valencia. "Evaluation of the compostability and toxic effects on Hordeum vulgare and Cynodon dactylon plants of plastic bags manufactured with compostable plastics." PLOS ONE 20, no. 3 (2025): e0318938. https://doi.org/10.1371/journal.pone.0318938.

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Because of the problem related to the accumulation of plastic bags in the environment, polymers called “bioplastics” have been developed. These materials are designed to reintegrate quickly into the environment, reducing thus environmental damage. However, when testing disposable bags made with biopolymers using standardized methodologies, it has not been possible to observe that they satisfactorily meet the criteria to be considered compostable. The present study evaluated compliance with the compostability criteria according to international standards established by the International Organiz

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15

Maragkaki, Angeliki, Nikitas G. Malliaros, Ioannis Sampathianakis, Theofanis Lolos, Christos Tsompanidis, and Thrassyvoulos Manios. "Evaluation of Biodegradability of Polylactic Acid and Compostable Bags from Food Waste under Industrial Composting." Sustainability 15, no. 22 (2023): 15963. http://dx.doi.org/10.3390/su152215963.

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To reduce plastic pollution, biodegradable plastics have been introduced to the market to replace petroleum-based plastics. This work investigates the biodegradation/disintegration of pure poly-L-lactic acid (PLLAB2B), composed of food waste (FW), and PLLAB2B bags, under industrial composting conditions, in order to determine whether they are compostable and to examine compost quality. In order to study the biodegradation, pure PLLAB2B was degraded in laboratory conditions and bag samples were put into simulation systems using windrow technology. Phytotoxicity tests were carried out for every

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Bryson, Emily, Lisa Bricknell, Ryan Kift, and Amie Anastasi. "Disintegration of certified compostable plastic bags in outdoor household composting conditions." Waste Management 190 (December 2024): 654–65. http://dx.doi.org/10.1016/j.wasman.2024.10.028.

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Kuznetsova, Olga V., Sergey N. Shtykov, and Andrei R. Timerbaev. "Mass Spectrometry Insight for Assessing the Destiny of Plastics in Seawater." Polymers 15, no. 6 (2023): 1523. http://dx.doi.org/10.3390/polym15061523.

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Plastic pollution has become an increasingly serious environmental issue that requires using reliable analytical tools to unravel the transformations of primary plastics exposed to the marine environment. Here, we evaluated the performance of the isotope ratio mass spectrometry (IRMS) technique for identifying the origin of polymer material contaminating seawater and monitoring the compositional alterations due to its chemical degradation. Of twenty-six plastic specimens available as consumer products or collected from the Mediterranean Sea, five plastics were shown to originate from biobased

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Astuti, Astuti, Anthony Costa, Akbar Teguh Prakoso, Irsyadi Yani, and Yulia Resti. "PREDICTION OF PLASTIC-TYPE FOR SORTING SYSTEM USING DECISION TREE MODEL." Indonesian Journal of Engineering and Science 4, no. 1 (2023): 075–81. http://dx.doi.org/10.51630/ijes.v4i1.86.

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Plastic is the most widely used inorganic material globally, but its hundred-year disintegration time can harm the environment. Polyethylene Terephthalate (PET/PETE), High-Density Polyethylene (HDPE), and Polypropylene are all commonly used plastics that have the potential to become waste (PP). An essential first step in the recycling process is sorting out plastic waste. A low-cost automated plastic sorting system can be developed by using digital image data in the red, green, and blue (RGB) color space as the dataset and predicting the type using learning datasets. This paper proposes the De

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Chen, Xuguang, Yuan Wang, Yu Mei, and Xin Zhang. "Numerical Simulation on Zonal Disintegration in Deep Surrounding Rock Mass." Scientific World Journal 2014 (2014): 1–8. http://dx.doi.org/10.1155/2014/379326.

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Zonal disintegration have been discovered in many underground tunnels with the increasing of embedded depth. The formation mechanism of such phenomenon is difficult to explain under the framework of traditional rock mechanics, and the fractured shape and forming conditions are unclear. The numerical simulation was carried out to research the generating condition and forming process of zonal disintegration. Via comparing the results with the geomechanical model test, the zonal disintegration phenomenon was confirmed and its mechanism is revealed. It is found to be the result of circular fractur

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L, Sidorenko, Sidorenko A, Gutsul T, Rastimesina I, and Vaseashta A. "Micro and Nanoplastics–Plastisphere, Biotoxicity, Impact on Human Health, and Mitigation Strategies." Nanomedicine & Nanotechnology Open Access 10, no. 2 (2025): 1–17. https://doi.org/10.23880/nnoa-16000345.

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The Omnipresence of micro and nano plastics is associated with several risks to ecology and toxicity to humans. Nanoplastics are directly released into the environment or secondarily derived from plastic disintegration in atmospheric as well as aquatic environments. Nanoplastics are widely detected in environmental samples and the food chain, leading to the plastisphere - a human-made ecosystem consisting of organisms that can live on plastic waste. The potentially biotoxicity effects have recently been explored through the food chain. We explore biotoxicity due to plastisphere and its potenti

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Yu, Yuan-xiang, Zhi-xun Xie, and Bao-ping Chen. "Space-Time Evolution Laws of Zonal Disintegration in Deep Underground Caves Based on Coordination Deformation between the Bolt Body and Surrounding Rock." Advances in Civil Engineering 2021 (May 5, 2021): 1–14. http://dx.doi.org/10.1155/2021/8818218.

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Zonal disintegration refers to the special phenomenon whereby fractured zones and intact zones appear alternately in deep-buried surrounding rocks under high stress conditions, which are different from that of the shallow rock mass. Because the divisional rupture law in engineering practice is closely related to the force characteristics of the bolt body, this paper analyzed stress distribution rules of the same bolt body at different times and that of different bolt bodies at the same time in the case of zonal disintegration based on coordination deformation between the bolt body and surround

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Chong, Zhi Kai, Alexander Hofmann, Marie Haye, et al. "Lab-scale and on-field industrial composting of biodegradable plastic blends for packaging." Open Research Europe 2 (September 13, 2023): 101. http://dx.doi.org/10.12688/openreseurope.14893.2.

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Background: The acceptance of compostable plastic packaging in industrial composting plants is not universal despite available certification due to the persistence of plastic residues after composting. To better understand this discrepancy, this study compared the disintegration rates of two blends designed for rigid packaging (polylactic acid based) and soft packaging (polybutylene succinate based) in lab-scale composting tests and in an industrial composting plant. Methods: A lab-scale composting test was conducted in triplicates according to ISO 20200 for 4, 8 and 12 weeks to check the disi

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Chong, Zhi Kai, Alexander Hofmann, Marie Haye, et al. "Lab-scale and full-scale industrial composting of biodegradable plastic blends for packaging." Open Research Europe 2 (January 22, 2024): 101. http://dx.doi.org/10.12688/openreseurope.14893.3.

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Background The acceptance of compostable plastic packaging in industrial composting plants is not universal despite available certification due to the persistence of plastic residues after composting. To better understand this discrepancy, this study compared the disintegration rates of two blends designed for rigid packaging (polylactic acid based) and soft packaging (polybutylene succinate based) in lab-scale composting tests and in an industrial composting plant. Methods A lab-scale composting test was conducted in triplicates according to ISO 20200 for 4, 8 and 12 weeks to check the disint

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Zhao, Yingting, Heather Smyth, Keyu Tao, Robert Henry, and Robert Gilbert. "Starch Molecular Structural Features and Volatile Compounds Affecting the Sensory Properties of Polished Australian Wild Rice." Foods 11, no. 4 (2022): 511. http://dx.doi.org/10.3390/foods11040511.

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Cooked high-amylose rices, such as Australian wild rice (AWR) varieties, have slower digestion rates, which is nutritionally advantageous, but may have inferior eating qualities. Here, a comparison is made between sensory and starch molecular fine structure properties, and volatile compounds, of polished AWR varieties and some commercial rices (CRs). Starch structural parameters for amylopectin (Ap) and amylose (Am) were obtained using fluorophore-assisted capillary electrophoresis and size-exclusion chromatography. Volatile compounds were putatively using headspace solid-phase microextraction

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Vu, Minh Duc, Thanh Liem Nguyen, Thi Kim Chi Dang, and Chau Giang Nguyen. "Evaluation of the biodegradability of poly (butylene adipate-co-terephthalate) and cassava starch films in municipal compost under controlled conditions by analysis of evolved carbon dioxide." Ministry of Science and Technology, Vietnam 65, no. 8 (2023): 50–55. http://dx.doi.org/10.31276/vjst.65(8).50-55.

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Plastic waste pollution is a major environmental issue all over the world, with Vietnam ranking among the ten most polluted countries. As a result, it is critical that research aims to reduce pollution levels from this plastic waste resource through the fabrication and application of biodegradable polymers to replace traditional plastics. In this study, plastics blend film based on cassava starch/poly(butylene adipate-co-terephthalate) (TPS/PBAT) (ratio of 40/60) was fabricated in a reactive twin screw extruder. Testing methods following the ASTM 6400 standard were used to evaluate the biodegr

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Post, Wouter, Lambertus J. Kuijpers, Martin Zijlstra, Maarten van der Zee, and Karin Molenveld. "Effect of Mineral Fillers on the Mechanical Properties of Commercially Available Biodegradable Polymers." Polymers 13, no. 3 (2021): 394. http://dx.doi.org/10.3390/polym13030394.

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In the successful transition towards a circular materials economy, the implementation of biobased and biodegradable plastics is a major prerequisite. To prevent the accumulation of plastic material in the open environment, plastic products should be both recyclable and biodegradable. Research and development actions in the past few decades have led to the commercial availability of a number of polymers that fulfil both end-of-life routes. However, these biobased and biodegradable polymers typically have mechanical properties that are not on par with the non-biodegradable plastic products they

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Malińska, Krystyna, Agnieszka Pudełko, Przemysław Postawa, Tomasz Stachowiak, and Danuta Dróżdż. "Performance of Biodegradable Biochar-Added and Bio-Based Plastic Clips for Growing Tomatoes." Materials 15, no. 20 (2022): 7205. http://dx.doi.org/10.3390/ma15207205.

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Increasing quantities of waste from using conventional plastic in agriculture and horticulture is one of the most pressing issues nowadays. Conventional plastic accessories (e.g., mulching films, clips, pots, strings, etc.) are typically fossil-derived, non-biodegradable and difficult to recycle after their use. Therefore, there is a need for biodegradable and bio-based alternatives with similar properties to conventional plastics, which can be disposed of through degradation in water, soil or compost under specific conditions. This work investigated the properties and the performance of biode

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Yang, Peiju, Shurong Zhang, and Changyou Liu. "Study on Shear Failure Process and Zonal Disintegration Mechanism of Roadway under High Ground Stress: A Numerical Simulation via a Strain-Softening Plastic Model and the Discrete Element Method." Applied Sciences 14, no. 10 (2024): 4106. http://dx.doi.org/10.3390/app14104106.

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Fracture expansion in rock masses can be observed by monitoring the break of contacts between the bounding particles via the discrete element method. The latter’s realization in this study via the PFC2D program tracked the evolution process of the zonal disintegration in an exemplary roadway-surrounding rock affected by mining. Besides, the damage evolution pattern in a high-stress soft rock roadway was simulated by the FLAC2D program using a strain-softening plastic model, revealing the effects of rock mass strength, stress state, and anchor support on the zonal disintegration of the roadway.

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Rai, Meera, Gaurav Pant, Kumud Pant, et al. "Microplastic Pollution in Terrestrial Ecosystems and Its Interaction with Other Soil Pollutants: A Potential Threat to Soil Ecosystem Sustainability." Resources 12, no. 6 (2023): 67. http://dx.doi.org/10.3390/resources12060067.

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The production and disposal of plastics have become significant concerns for the sustainability of the planet. During the past 75 years, around 80% of plastic waste has either ended up in landfills or been released into the environment. Plastic debris released into the environment breaks down into smaller particles through fragmentation, weathering, and other disintegration processes, generating microplastics (plastic particles ≤ 5 mm in size). Although marine and aquatic ecosystems have been the primary focus of microplastic pollution research, a growing body of evidence suggests that terrest

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Engelhart, M., M. Krüger, J. Kopp, and N. Dichtl. "Effects of disintegration on anaerobic degradation of sewage excess sludge in downflow stationary fixed film digesters." Water Science and Technology 41, no. 3 (2000): 171–79. http://dx.doi.org/10.2166/wst.2000.0069.

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The effects of mechanical disintegration on anaerobic digestibility of sewage excess sludge in downflow stationary fixed film (DSFF) digesters were investigated on laboratory scale. Mechanical pretreatment using a high pressure homogenizer led to significantly enhanced concentrations of soluble proteins and carbohydrates in the feed sludge. Using DSFF digesters with two different tubular plastic media as support material it was shown that a stable digestion process could be achieved at hydraulic retention times (HRT) down to 5 days. Compared to conventional digesters at 10 d and 15 d HRT respe

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Deocaris, Chester C., Jayson O. Allosada, Lorraine T. Ardiente, et al. "Occurrence of microplastic fragments in the Pasig River." H2Open Journal 2, no. 1 (2019): 92–100. http://dx.doi.org/10.2166/h2oj.2019.001.

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Abstract Microplastics are plastic fragments with dimensions of less than 5 mm. These materials are formed within bodies of water by the forces shearing on the large plastics. Ultraviolet light from sunlight also degrades plastic materials causing discoloration and disintegration into smaller, micro- or even nano-sized particles. This study reports the isolation of microplastic fragments from the Pasig River within the vicinity of the Polytechnic University of the Philippines. The collection of floating particulates was done by sieving the river water (flow rate = 0.31 m s−1) through a 0.35 mm

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Kobylkina, T. L., M. G. Perikova, A. M. Enikeev, and I. A. Gatilo. "Clinical case of peri-implantitis after orthodontic treatment." Spravočnik vrača obŝej praktiki (Journal of Family Medicine), no. 11 (October 31, 2022): 33–43. http://dx.doi.org/10.33920/med-10-2211-04.

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The materials of the article contain a description of the clinical and radiological picture of peri-implantitis. The operation of dental implantation was performed at the beginning of the retention period in orthodontic treatment. Plastic crowns on temporary abutments were made a few days after the surgical stage. As a result of immediate occlusal load and installation of dental implants in the early stages of the retention period of orthodontic treatment, their disintegration occurred.

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Onal, Merih, Gultekin Ovet, and Necat Alatas. "An Asymptomatic Foreign Body in the Nose in an Eighteen-Year-Old Patient: Button Battery." Case Reports in Surgery 2015 (2015): 1–3. http://dx.doi.org/10.1155/2015/129851.

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Foreign bodies lodged in the upper airway are a common occurrence in children. Many unusual foreign bodies in the nose have been reported as foreign bodies like nuts, plastic toy parts, beads, and so forth. Most of these produce minimal morbidity but button batteries due to their early chemical disintegration require early surgical intervention. Here, we report a case of button battery lodged in the nose for several years with a symptom of nasal obstruction and chronic sinusitis.

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Wang, M. Y., C. Z. Qi, Q. H. Qian, and J. J. Chen. "One plastic gradient model of zonal disintegration of rock mass near deep level tunnels." Journal of Mining Science 48, no. 1 (2012): 46–54. http://dx.doi.org/10.1134/s1062739148010066.

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Dominguez-Candela, Ivan, Daniel Garcia-Garcia, Aina Perez-Nakai, Alejandro Lerma-Canto, Jaime Lora, and Vicent Fombuena. "Contribution to a Circular Economy Model: From Lignocellulosic Wastes from the Extraction of Vegetable Oils to the Development of a New Composite." Polymers 13, no. 14 (2021): 2269. http://dx.doi.org/10.3390/polym13142269.

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The present works focuses on the development of a novel fully bio-based composite using a bio-based high-density polyethylene (Bio-HDPE) obtained from sugar cane as matrix and a by-product of extraction of chia seed oil (CO) as filler, with the objective of achieving a circular economy model. The research aims to revalorize an ever-increasing waste stream produced by the growing interest in vegetable oils. From the technical point of view, the chia seed flour (CSF) was chemically modified using a silane treatment. This treatment provides a better interfacial adhesion as was evidenced by the me

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Burton, Justin C., L. Mac Cathles, and W. Grant Wilder. "The role of cooperative iceberg capsize in ice-shelf disintegration." Annals of Glaciology 54, no. 63 (2013): 84–90. http://dx.doi.org/10.3189/2013aog63a436.

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AbstractDisintegration of several ice shelves along the Antarctic Peninsula demonstrates a mechanism that involves the conversion of a contiguous ice shelf into an expanding plume of ice-shelf fragments that spreads rapidly across the ocean surface. The growth of surface area and energetic expansion are hypothesized to be driven by gravitational potential energy release associated with iceberg capsize and break-up. Here we investigate this process using a water tank filled with plastic icebergs scaled to represent a laboratory analogue of an expanding plume of ice-shelf fragments (icebergs). O

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C Joshi, Pranoti, Chinmay Khanolkar, and Archana Sharma. "Identification and Microscopic Classification of Microplastics in Beach Sediment Sample at Dadar Chowpatty." Contemporary Advances in Science and Technology 07, no. 01 (2024): 117–34. http://dx.doi.org/10.70130/cast.2024.7109.

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The current study involves the design of a feasible solution for cleaning beach sediments off microplastics. The results of this study will help spread awareness about this micro-menace threatening our societies. It also focuses on otherwise neglected and invisible aspects of plastic pollution. These findings may open up new avenues for research in this area. The long-term impacts of this study may involve the conservation of food quality in fisheries and ecosystems along the coast of Mumbai. During sampling, it was observed that the Dadar Beach was relatively less polluted or disturbed. Albei

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Tynyna, Serhii, and Ihor Chobotko. "NALYTICAL STUDIES CONCERNING RESISTANCE OF STRESSED ROCKS TO DISINTEGRATION." JOURNAL of Donetsk mining institute, no. 2 (2020): 83–88. http://dx.doi.org/10.31474/1999-981x-2020-2-83-88.

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Purpose. State-of-the art review concerning the effect of stress-strain state of the rock upon its resistance to mechanical breaking is represented. Methods. It is highlighted that while calculating efficient breaking modes of complex stressed rock and parameters of rock-breaking machine organs, it is required to consider the degree of natural stress of the near-face rock under breaking. Results. Necessity to take into account the rock stress degree has been substantiated as the index of breaking strength of stress-free rock samples differs considerably from the one obtained with the considera

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Rizwan, Muhammad, and Tabasam Jamal. "Degradation of Bioplastics under the Influence of Several Environmental conditions." Vol 3 Issue 1 3, no. 3 (2021): 93–101. http://dx.doi.org/10.33411/ijist/2021030302.

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The increasing threats of plastics to the natural environment encouraged the production of bio-plastics from renewable biomass resources. The premium quality of bio-plastics are mainly produced by treating starch with glycerol. Plastics are basically non-biodegradable synthetic or semi synthetic products. This study aims at analyzing the degradation patterns of bio-plastics. The bio-plastics are ecologically less toxic than the synthetic plastic materials. The bio-plastics can degrade in several environmental conditions including aquatic environment, compost and soil. The bioplastic materials

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Löser, C. "Severe Complications Caused by Dissolution of Latex with Consequent Self-Disintegration of Esophageal Plastic Tubes." Endoscopy 32, no. 9 (2000): 723–27. http://dx.doi.org/10.1055/s-2000-7030.

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Leonas, Karen K., and Robert W. Gorden. "An accelerated laboratory study evaluating the disintegration rates of plastic films in simulated aquatic environments." Journal of Environmental Polymer Degradation 1, no. 1 (1993): 45–51. http://dx.doi.org/10.1007/bf01457652.

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Srinidhi, M., S. Sangeetha, and P. Hari Krishna. "Interaction of Heavy Metals with Plastic Contaminated Soil." IOP Conference Series: Earth and Environmental Science 1280, no. 1 (2023): 012041. http://dx.doi.org/10.1088/1755-1315/1280/1/012041.

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Abstract Microplastic (MP) contamination is a threat to soil and groundwater system. Disintegration of used plastic products under exposure to solar radiations, application of sewage sludge to the soil, plastic mulching in agricultural activities leads to the formation of microplastics in significant amounts in soil. Hence there is a need from the geo environment engineering perspective on microplastic contamination in soils. Landfills and industrial areas have microplastic pollution in abundance. The presence of microplastic may alter the behaviour of liner material and surface soil in terms

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Fedorov, V. T., and M. N. Kokoev. "Surface Energy in the Processes of Disintegration of Solids." Herald of Dagestan State Technical University. Technical Sciences 50, no. 3 (2023): 181–89. http://dx.doi.org/10.21822/2073-6185-2023-50-3-181-189.

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Objective. The purpose of the study is to experimentally measure the surface energy of solids during their grinding.Method. The study is based on the use of methods for determining the surface tension of solids. At least 20-25% of all electricity produced in the world is spent on grinding materials in industry. When the resulting particles are reduced to tens of nanometers, the contribution of surface energy (st) to the grinding work becomes so large that it is difficult not to take it into account. Measuring the surface tension of liquids has long been proven. But measuring (st) of solids cau

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Oladunjoye, R. Y., O. O. Fafioye, R. A. Asiru, G. O. Bakare, and A. A. Odusolu. "Haematological and histopathological examinations of African mud catfish (Clarias gariepinus) exposed to petroleum wastewater." Scientia Africana 20, no. 2 (2021): 127–44. http://dx.doi.org/10.4314/sa.v20i2.12.

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Effects of petroleum refinery wastewater on Clarias gariepinus juvenile were investigated. Commercially obtained C. gariepinus fingerlings were acclimatized in a plastic tank (100 L capacity) of de-chlorinated tap water at 25±2°C for 14 days and fed with commercial feed pellet at 2% body weight of the fingerlings. Bioassay tests were carried out in four transparent plastics tank with nominal concentrations of 100 ml, 200 ml, 300 ml of the wastewater added to 40L of de-chlorinated tap water and only de-chlorinated tap water as control. Each tank contains twenty fish samples, while the assay was

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Prajwal, K.* Parthasarathi Kulkarni Nagendra R. Venkatesh K. Hanumanthachar Joshi. "Design And Development of Co-Processed Chitin-Lactose Monohydrate as An Excipient for Oral Dispersible Tablets." International Journal of Pharmaceutical Sciences 2, no. 11 (2024): 239–48. https://doi.org/10.5281/zenodo.14035183.

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This study describes the preparation, characterization and performance of a novel excipient for use in oral-dispersible tablets (ODT). The excipient (Cop–CLM) consists of chitin and lactose monohydrate. Specific benefits of co-processed excipients include improved flow, compressibility, disintegrating effect, and masking undesirable properties of individual excipients. The excipient with optimal physicochemical properties was obtained at a chitin: lactose monohydrate ratio of 1:2 (w/w) and produced by direct mixing. Physical properties of Co-processed chitin-lactose monohydrate (1:2 w/w)

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Haldar, Shoumi, Nounenuo Yhome, Yuvashree Muralidaran, Senthilkumar Rajagopal, and Prabhakar Mishra. "Nanoplastics Toxicity Specific to Liver in Inducing Metabolic Dysfunction—A Comprehensive Review." Genes 14, no. 3 (2023): 590. http://dx.doi.org/10.3390/genes14030590.

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Plastic pollution in the world is widespread and growing. The environment is swamped with nanoplastics (<100 nm), and the health consequences of these less visible pollutants are unknown. Furthermore, there is evidence that microplastics can release nanoplastics by digestive disintegration, implying that macroplastic exposure can cause direct and indirect disease via nanoplastics. The existence and impact of nanoplastics in numerous tissues from invertebrates to larger vertebrates that consume significant amounts of plastics were investigated, and histopathological techniques were utilized

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Gao, Wenle, Yuming Kou, Tongqing Yan, Hong Sun, and Saijiang Li. "Case Study on the Effect of Delay-Time Differences between Columns during Blasting Demolition of RC Structures with a Small Height-to-Width Ratio." Applied Sciences 13, no. 11 (2023): 6765. http://dx.doi.org/10.3390/app13116765.

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Blasting demolition plays an important role in building demolition, and numerical-simulation methods can facilitate the optimization of blasting-demolition schemes. To study the influence of the delay-time differences between columns on the blasting and demolition effect of small-aspect-ratio reinforced concrete structures, a separated common node model of small-aspect-ratio structures was established through the finite element numerical simulation software ANSYS/LS-DYNA. The results showed that the delay-time differences between columns influenced the position of the plastic hinge of the stru

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Erdeni, Abed, Dhyaa Jwher, Muntaha Hassan, and Dhamyaa Doory. "Enhancing the composting process by using lactic acid bacilli for the hygienic disposal of dead fish." Open Veterinary Journal 13, no. 11 (2023): 1458. http://dx.doi.org/10.5455/ovj.2023.v13.i11.9.

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Background: Fish producers in Iraq currently facing large and growing problems, represented by the difficulty of getting rid of large numbers of dead fish as a result of mass phenomenon mortality since 2018. As their treatment and disposal has become very cumbersome and costly, and leaving it to wild animals and natural forces is unacceptable, so most of them resort to the composting method because it's a simple, easy, and inexpensive process, and benefits outputs, but it takes a long time. Aim: The study aimed to compare two different composting methods for the disposal of dead fish, one of t

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Kuleshova, O. N. "AGE AND SEX CHARACTERISTICS OF THE BEHAVIOR OF PRENATALLY STRESSED RATS IN A BLACK-AND-WHITE MODIFICATION OF THE BEHAVIORAL MODEL “SUOK-TEST”." Журнал высшей нервной деятельности им. И.П. Павлова 73, no. 4 (2023): 550–62. http://dx.doi.org/10.31857/s0044467723040068.

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Research activity, anxiety and motor disintegration were studied in prenatally stressed immature and adult male and female rats in the Suok-test model. The mothers of these animals from the 16th to the 19th days of pregnancy were placed for 3 hours in plastic pencil cases that fix the animals. The offspring were tested on day 20 and month 4 of postnatal ontogenesis. Mature females were tested taking into account the estrous cycle. A decrease in anxiety and an increase in research activity was observed in all experimental groups, with the exception of mature females at the diestrus stage. At th

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P. Sebastian, Gerald, Rajinidevi Kaliyan, and Pethuru Devadason. "Button battery foreign body among children: a case series." International Journal of Otorhinolaryngology and Head and Neck Surgery 6, no. 5 (2020): 978. http://dx.doi.org/10.18203/issn.2454-5929.ijohns20201699.

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<p>In children the foreign bodies are a common occurrence which may be either accidental or self-induced as a matter of habit. Various materials like metal, plastic toy parts, food matters, etc have been reported as foreign bodies. Button batteries have been reported as foreign bodies in the ear, nose and throat are very relevant and practical, due to their early chemical disintegration in contact with mucosal surface; hence, need emergency surgical intervention to avoid complications. Here, we report five cases of button batteries in the ear nose and throat at various stages of presenta

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