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Journal articles on the topic 'Water-soluble PVA film'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Kim, Jong Won, and Jin-Hae Chang. "Syntheses of Colorless and Transparent Polyimide Membranes for Microfiltration." Polymers 12, no. 7 (2020): 1610. http://dx.doi.org/10.3390/polym12071610.

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Herein, poly(amic acid) (PAA) was synthesized using 4,4’-(hexafluoroisopropylidene) diphthalic anhydride (6FDA) as a dianhydride and 2,2-bis(3-aminophenyl)hexafluoropropane (6FAm) and 2,2-bis(3-amino-4-hydroxyphenyl)hexafluoropropane (6FAm-OH) as diamines. Poly(vinyl alcohol) (PVA) at various contents (0–5.0 wt%) was blended with PAA to prepare a composite material. Then, colorless and transparent polyimide (CPI) composite films were prepared by applying various stages of heat treatment using the PAA/PVA blend film as a precursor. These film-type composites were immersed in water to completely

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Kim, Jong Won, Seon Ju Lee, Moon Young Choi, and Jin-Hae Chang. "Colorless and Transparent Polyimide Microporous Film with Excellent Physicochemical Property." Polymers 13, no. 8 (2021): 1298. http://dx.doi.org/10.3390/polym13081298.

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4,4′-(4,4′-isopropylidenediphenoxy)bis(phthalic anhydride) (BPADA) as a dianhydride and bis(3-aminophenyl) sulfone (APS) and bis(3-amino-4-hydroxyphenyl) sulfone (APS-OH) as diamines were used to synthesize two types of poly(amic acid) (PAA). Varying amounts (0–5.0 wt%) of water-soluble poly(vinyl alcohol) (PVA) were mixed with PAA, and the resulting blend was heat-treated at different stages to obtain the colorless and transparent polyimide (CPI) blend films. The synthesized blended film completely removed water-soluble PVA in water. The possibility as a porous membrane according to the pore

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Panraksa, Pattaraporn, Pratchaya Tipduangta, Kittisak Jantanasakulwong, and Pensak Jantrawut. "Formulation of Orally Disintegrating Films as an Amorphous Solid Solution of a Poorly Water-Soluble Drug." Membranes 10, no. 12 (2020): 376. http://dx.doi.org/10.3390/membranes10120376.

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The objective of the present study was to develop an orally disintegrating film (ODF) for a poorly water-soluble drug, phenytoin (PHT), using the cosolvent solubilization technique to achieve the amorphization of the drug, followed by the preparation of ODFs. Eleven formulations were prepared with different polymers, such as polyvinyl alcohol (PVA) and high methoxyl pectin (HMP) by the solvent casting method. The prepared films were subjected to characterization for weight variations, thickness, surface pH, disintegration time and mechanical strength properties. Then, differential scanning cal

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Wang, Li-Ping, Yun-Pu Wang, and Fa-Ai Zhang. "Preparation and Characterization of Ni2+-Montmorillonite/Polyvinyl Alcohol Water-Soluble Nanocomposite Film." Polymers and Polymer Composites 13, no. 8 (2005): 839–46. http://dx.doi.org/10.1177/096739110501300811.

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A new type of nano-composite film was prepared from polyvinyl alcohol, Ni2+-montmorillonite (Ni2+-MMT), defoamer, a levelling agent and a plasticizer. Its thermal characteristics were studied by Differential Scanning Calorimetry (DSC). The intermolecular interactions were measured by Fourier transform infrared spectroscopy (FT-IR) and X-ray photoelectron spectroscopy (XPS), and the tensile strength (TS) and elongation at break (%E) were measured. The microstructures were studied by X-ray diffraction (XRD) and atomic force microscopy (AFM). FT-IR and XPS spectra indicated that cross-linking has

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Vy, Nguyen Tuong, Nguyen Thi Khoi Pham, and Lam Quoc Ha. "Preparation and characterization of graphene oxide and cellulose nanofibers/ polyvinyl alcohol nanocomposite film." Science and Technology Development Journal - Natural Sciences 5, no. 3 (2021): first. http://dx.doi.org/10.32508/stdjns.v5i3.958.

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Polyvinyl alcohol (PVA) is well-known in the packaging industry, especially in the food and medical fields with the ability to be completely biodegradable and easily soluble in cold water therefore products made from it are the environmentally friendly materials. However, the disadvantages of this polymer as quick dissolubility in water, poor moisture retention, weak mechanical properties reduce its applications. In this study, PVA, reinforced by “green” components at the nanometer-level such as nanocellulose fibers (CNF), graphene oxide (GO) nanosheets showed improvements in properties. Mecha

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Yuwono, Andra Rizky. "WATER-SOLUBLE FILM SEBAGAI ALTERNATIF KEMASAN PRODUK SACHET." Jurnal Seni dan Reka Rancang: Jurnal Ilmiah Magister Desain 2, no. 1 (2021): 107–18. http://dx.doi.org/10.25105/jsrr.v2i1.10099.

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AbstractTrash has always been a problem for the world. Trash are items that no longer have any use and havebeen thrown away by their owner(s). Current estimations show that Indonesia produces 85.000 tonsof daily trash, with further estimations showing an increase up to 150.000 tons of trash per day, a76% increase, by the year 2025. Water-soluble films are films that can dissolve or degrade when theycome into contact with water, made from polyvinyl alcohol (PVA) polymers. From the year 2012, thismaterial has been used in America detergent packaging, spa cosmetics, and many others. Water-soluble

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Costa, L., M. Al-Hashimi, M. Heeney, et al. "Template-Synthesis of Conjugated Poly(3-Hexylselenophene) (P3HS) Nanofibers Using Femtosecond Laser Machined Fused Silica Templates." MRS Advances 2, no. 51 (2017): 2957–60. http://dx.doi.org/10.1557/adv.2017.337.

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Abstract:We report on the preparation of conjugated polymer nanofibers via template-synthesis. A femtosecond laser machined fused silica template, with a micro-patterned array of high-aspect ratio surface nanopores, was first spin-coated with a polyvinyl alcohol (PVA) solution to form a water-soluble release layer. The PVA-lined template was then coated with a conjugated poly(3-hexylselenophene) (P3HS) – solvent solution. The solvent was allowed to dissipate, and the resulting {template / PVA liner / conjugated P3HS film} stack was then submerged in water to dissolve the PVA and release the co

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Bokka, Naveen, Venkatarao Selamneni, and Parikshit Sahatiya. "A water destructible SnS2 QD/PVA film based transient multifunctional sensor and machine learning assisted stimulus identification for non-invasive personal care diagnostics." Materials Advances 1, no. 8 (2020): 2818–30. http://dx.doi.org/10.1039/d0ma00573h.

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Koduvayur Ganeshan, Sankalp, Venkatarao Selamneni, and Parikshit Sahatiya. "Water dissolvable MoS2 quantum dots/PVA film as an active material for destructible memristors." New Journal of Chemistry 44, no. 28 (2020): 11941–48. http://dx.doi.org/10.1039/d0nj02053b.

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Ji, Tengteng, Rong Zhang, Xiaorong Dong, et al. "Effects of Ultrasonication Time on the Properties of Polyvinyl Alcohol/Sodium Carboxymethyl Cellulose/Nano-ZnO/Multilayer Graphene Nanoplatelet Composite Films." Nanomaterials 10, no. 9 (2020): 1797. http://dx.doi.org/10.3390/nano10091797.

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Ultrasonication-assisted solution casting was used to prepare polyvinyl alcohol (PVA)/sodium carboxymethyl cellulose (CMC)/nano-ZnO/multilayer graphene nanoplatelet (xGnP) composite films; the performances (mechanical properties, water vapor permeability (WVP), biodegradability and antibacterial activity) of these films were investigated as a function of the ZnO NPs:xGnP mass ratio and ultrasonication time. Intermolecular interactions among ZnO NPs, xGnP and the PVA/CMC matrix were shown to improve WVP, while X-ray diffraction and scanning electron microscopy analyses revealed that the interna

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Chan, Mieow-Kee, and Tung-Hao Tang. "The properties of starch/cellulose/polyvinyl alcohol composite as hydrodegradable film." Polymers and Polymer Composites 30 (January 2022): 096739112211003. http://dx.doi.org/10.1177/09673911221100353.

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Hydrodegradable material as the replacement for plastic could be a better option than biodegradable material due to its solubility in water, which could extend the landfill’s lifespan. On the other hand, biodegradable material requires tightly controlled waste management and proper facilities for degradation purposes. The starch film is highly soluble in water, exhibiting poor mechanical strength. This study aims to improve the strength of starch film by adding cellulose, which was isolated from rice husk and polyvinyl alcohol (PVA). Results showed that Type 1 – cellulose was extracted from ri

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Xu, Chaohang, Hetang Wang, Deming Wang, et al. "Improvement of Foaming Ability of Surfactant Solutions by Water-Soluble Polymers: Experiment and Molecular Dynamics Simulation." Polymers 12, no. 3 (2020): 571. http://dx.doi.org/10.3390/polym12030571.

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Aqueous foam is widely used in fire extinguishing and dust suppression technologies. Improving the foaming ability is the key to reducing the added concentration of foaming agents as well as the economic cost. In this work, the effect of a water-soluble polymer (polyvinyl alcohol, PVA) on the foaming ability of anionic surfactant (sodium dodecyl ether sulfate, SDES) was studied by an experiment and molecular dynamics simulation. The experimental results showed that PVA greatly improves the foaming ability of SDES solutions when the surfactant concentration is less than 0.1%, which is attribute

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Selapa, Sivashanggary, Siew Wei Phang, Anis Suhaila Shuib, and Jen Looi Tee. "Fabrication of hydrogel controlled-released Phosphorus encapsulated in starch-polyvinyl alcohol film." Journal of Physics: Conference Series 2523, no. 1 (2023): 012011. http://dx.doi.org/10.1088/1742-6596/2523/1/012011.

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Abstract Traditional soluble phosphorous(P) fertilizers can easily leach into water systems causing water eutrophication, a major environmental problem caused by an excess release of nutrients. Controlling the release of P in response to the plant demand could reduce fertilizer’s losses and also reduce environmental pollution. This study establishes a concept of controlled release fertilizer, in which a hydrogel fertilizer film is fabricated by incorporating starch, polyvinyl alcohol and ammonium dihydrogen phosphate fertilizer which tend to immobilize the release of phosphate ions and acceler

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Hao, Xi Hai, Xiao Peng Yi, and Ding Li. "Research on the Screening of Degrading Fungi for Poly (vinyl alcohol) Film and the Effect of Additives." Advanced Materials Research 1096 (April 2015): 80–88. http://dx.doi.org/10.4028/www.scientific.net/amr.1096.80.

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Poly (vinyl alcohol) (PVA) was used as the sole carbon source in the medium to isolate PVA-degrading fungi from an activated sludge which obtained from water-soluble PVA packaging film factory. The PVA-degrading fungi were screened after transparent circle experiment and were preliminary identified through morphology and optical microscope observations. The qualitative and quantitative researches of the effect of additives on PVA degradability were investigated by transparent circle experiment and UV spectrophotometry, respectively. The results showed that the degradation effect of the XP-02 w

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Liu, Zhaoyu, Dong Yao, Huiwen Liu, and Hao Zhang. "Metal Nanoclusters/Polyvinyl Alcohol Composite Films as the Alternatives for Fabricating Remote-Type White Light-Emitting Diodes." Nanomaterials 12, no. 2 (2022): 204. http://dx.doi.org/10.3390/nano12020204.

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Packing luminescent metal nanoclusters (MNCs) into polymers and fabricating novel MNCs/polymer composite materials is effective in obtaining high-performance light-emitting diodes (LEDs). Herein, water soluble Cu and Au nanoclusters are encapsulated in polyvinyl alcohol (PVA) by a casting method. The obtained MNCs/PVA composite films are highly emissive with triple primary colors, and inherit the merits of PVA, such as transparency, flexibility, machinability, stability and self-healing ability. By employing the MNCs/PVA composite films as down-conversions, remote type monochromic and white LE

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Wu, Shufang, Xunjun Chen, Tiehu Li, et al. "Improving the Performance of Feather Keratin/Polyvinyl Alcohol/Tris(hydroxymethyl)Aminomethane Nanocomposite Films by Incorporating Graphene Oxide or Graphene." Nanomaterials 10, no. 2 (2020): 327. http://dx.doi.org/10.3390/nano10020327.

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In this study, feather keratin/polyvinyl alcohol/tris(hydroxymethyl)aminomethane (FK/PVA/Tris) bionanocomposite films containing graphene oxide (GO) (0.5, 1, 2, and 3 wt%) or graphene (0.5, 1, 2, and 3 wt%) were prepared using a solvent casting method. The scanning electron microscopy results indicated that the dispersion of GO throughout the film matrix was better than that of graphene. The successful formation of new hydrogen bonds between the film matrix and GO was confirmed through the use of Fourier-transform infrared spectroscopy. The tensile strength, elastic modulus, and initial degrad

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Jassim, Zainab E., Mais F. Mohammed, and Zainab Ahmed Sadeq. "FORMULATION AND EVALUATION OF FAST DISSOLVING FILM OF LORNOXICAM." Asian Journal of Pharmaceutical and Clinical Research 11, no. 9 (2018): 217. http://dx.doi.org/10.22159/ajpcr.2018.v11i9.27098.

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Objective: The aim of the present work was to formulate and evaluate fast dissolving film containing lornoxicam.Materials and Methods: To prepare the film, hydroxypropyl methylcellulose E5 and polyvinyl alcohol (PVA) were used as film-forming polymers by solvent casting method. Glycerine was used as plasticizer, aspartame, and mannitol as sweetener. All prepared films were evaluated for its weight variation, disintegration time, thickness, drug content, pH, dissolution study, and folding endurance. The drug-excipients compatibility study was done using differential scanning calorimetry (DSC) a

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Wu, Shufang, Xunjun Chen, Minghao Yi, Jianfang Ge, Guoqiang Yin, and Xinming Li. "Improving the Water Resistance and Mechanical Properties of Feather Keratin/Polyvinyl Alcohol/Tris(Hydroxymethyl)Aminomethane Blend Films by Cross-Linking with Transglutaminase, CaCl2, and Genipin." Materials 11, no. 11 (2018): 2203. http://dx.doi.org/10.3390/ma11112203.

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The high moisture sensitivity of feather keratin/polyvinyl alcohol/tris(hydroxymethyl)aminomethane (FK/PVA/Tris) blend films hinders their application in the packaging field. Thus, in order to improve the water resistance and mechanical properties of such blend films, we attempted cross-linking the blend film with cross-linking agents such as transglutaminase (TG), CaCl2, and genipin. Obvious differences in the morphology of the blended films were observed by scanning electron microscopy before and after cross-linking, indicating that cross-linking can inhibit the phase separation of the blend

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Shahi, Naresh, Gautam Joshi, and Byungjin Min. "Effect of Regenerated Cellulose Fibers Derived from Black Oat on Functional Properties of PVA-Based Biocomposite Film." Processes 8, no. 9 (2020): 1149. http://dx.doi.org/10.3390/pr8091149.

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In this study, agricultural residue from black oat, a cover crop usually grown to improve soil nutrients between the periods of regular crop production, was used as a source of cellulose fibers. Concentrations of 1, 3, and 5 wt. % of regenerated cellulose (RC) fibers blended in poly(vinyl alcohol) (PVA) solution were used to prepare the reinforced composite films (CFs) by the solvent cast method. Compared to neat PVA film (control), the effects of RC addition on functional properties of CFs, such as water absorption, transparency, thermal stability, and mechanical property were investigated. A

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Nani Sukmawati, Lusia Oktora Ruma Kumala Sari, and Eka Deddy Irawan. "OPTIMASI MORINGA GUM DAN POLIVINIL ALKOHOL DALAM SEDIAAN MUCOADHESIVE BUCCAL FILM DILTIAZEM HIDROKLORIDA." Jurnal Kesehatan Islam : Islamic Health Journal 13, no. 1 (2024): 1–8. http://dx.doi.org/10.33474/jki.v13i1.21718.

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Abstract. Diltiazem Hydrochloride (HCl) is commonly used in hypertension therapy for its beneficial effects, such as reducing blood vessel pressure resistance and relaxing the heart muscles. In an in-vivo study, Diltiazem HCl is known to be decrease by 60% of its bioavailability due to first-pass metabolism. Thus, it is necessary to develop a new administration route, some of which is buccal drug delivery route in mucoadhesive buccal film. Moringa gum is a polyuronide polymer with a hydroxyl group in its side chains, giving the potential use as a mucoadhesive polymer. However, it has poor fold

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Kant, Ravi, and M. Fahim. "Enhanced Dielectric Constant of Succinic Acid doped Polyvinyl Alcohol (PVA) Thin Film." Current Natural Sciences and Engineering 2, no. 2 (2025): 649–56. https://doi.org/10.63015/7c-2462.2.2.

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The present paper reports the dielectric behaviour of high molecular weight water soluble polyvinyl alcohol (PVA) system doped with a dicarboxylic acid (succinic acid). Doped PVA samples were synthesized in the laboratory using solution casting method by keeping an optimum concentration of succinic acid (30 wt%) in PVA solution. These samples were characterised for their structural behaviour using FT-IR and XRD while frequency and temperature dependent dielectric properties were measured using Agilent LCR meter. It was observed that dielectric permittivity () of 30wt% acid doped PVA signific

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Atchaya, R. K., U. Devipriya, K. Sreeja, and P. Buvanesh. "Evaluation of Bioplastic Developed from Corn Starch and Euphorbia antiquorum Latex." International Journal of Environment and Climate Change 13, no. 11 (2023): 1169–77. http://dx.doi.org/10.9734/ijecc/2023/v13i113267.

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Traditional plastic materials have a negative environmental impact and one potential strategy to reduce this rising plastic pollution is to use compostable materials like bioplastic. An experiment was conducted at RVS School of Engineering and Technology, Dindigul to synthesize bioplastic from agricultural products like corn starch, latex of Euphorbia antiquorum and polyvinyl alcohol (PVA). Two sets of blend bioplastic film samples were prepared using solution casting method; Sample A (corn starch + latex of Euphorbia antiquorum) and Sample B (corn starch + latex of Euphorbia antiquorum + PVA)

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Tan, Jia Ying, Wah Yen Tey, Joongjai Panpranot, Steven Lim, and Kiat Moon Lee. "Valorization of Oil Palm Empty Fruit Bunch for Cellulose Fibers: A Reinforcement Material in Polyvinyl Alcohol Biocomposites for Its Application as Detergent Capsules." Sustainability 14, no. 18 (2022): 11446. http://dx.doi.org/10.3390/su141811446.

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Cellulose fibers isolated from oil palm empty fruit bunches (OPEFB) have been studied as a potential reinforcement for polyvinyl alcohol (PVA) biocomposite. Analysis of variance (ANOVA) showed that all three parameters—hydrolysis temperature, time and acid concentration, as well as their interactions—significantly affected the yield of cellulose. Moving Least Squares (MLS) and Multivariable Power Least Squares (MPLS) models demonstrated good fitness. The model also proved that acid concentration was the dominant parameter, supported by the Fourier transform infrared spectroscopy (FTIR) analysi

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Studenikina, L. N., V. E. Uglova, I. V. Kolenko, and A. A. Melnikov. "Modification of polyvinyl alcohol with borates." Proceedings of the Voronezh State University of Engineering Technologies 86, no. 3 (2024): 231–36. https://doi.org/10.20914/2310-1202-2024-3-231-236.

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Modification of polyvinyl alcohol (PVA) with borates allows to regulate the main performance indicators of water-soluble films - temperature and time of solubility, strength. The need to increase the water resistance of PVA-based films is associated with specific areas of their application, for example, when creating protective shells in plant growing or eco-friendly disposable tableware, etc. The aim of the work is a comparative assessment of the main performance indicators of PVA films with different molecular weights modified with borates of different nature. Objects of study: film samples

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Zhang, S., H. G. Guo, and M. J. Cran. "Influence of PVA resin and cross-linking agent on the structure and properties of semi-refined carrageenan-based packaging films." Journal of Physics: Conference Series 2680, no. 1 (2024): 012006. http://dx.doi.org/10.1088/1742-6596/2680/1/012006.

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Abstract For the high content of carrageenan in some seaweed and the low cost and easy availability of semi refined carrageenan (SRC), SRC resin powder was selected as our research object. Due to its water solubility, a solution casting method was adopted to form film, hoping to prepare food packaging materials that partially replace petroleum based resin. The pure SRC resin casting film is very brittle and cannot be formed. Therefore, 40wt% glycerol was added to the formula to plasticize and improve the flexibility and demoulding ability of SRC. The plasticized SRC film still has limitations.

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Vidya, Francis, Subin S. Raghul, Sarita G. Bhat, and Eby Thomas Thachil. "Effect of Cobalt Stearate and Vegetable Oil on Uv and Biodegradation of Linear Low-Density Poly(Ethylene)-Poly(Vinyl Alcohol) Blends." Polymers from Renewable Resources 2, no. 4 (2011): 131–48. http://dx.doi.org/10.1177/204124791100200401.

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The main objective of this study was to enhance the rate of UV and biodegradation of polyethylene by incorporating biodegradable materials and prooxidants. Prooxidants such as transition metal complexes are capable of initiating photooxidation and polymer chain cleavage, rendering the product more susceptible to biodegradation. In this work, the effect of (1) a metallic photoinitiator, cobalt stearate, and (2) different combinations of cobalt stearate and vegetable oil on the photooxidative degradation of linear low-density poly(ethylene)-poly(vinyl alcohol) (LLDPE/PVA) blend films has been in

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Valerii, Kotok, Kovalenko Vadym, Mikolasek Miroslav, et al. "Characteristics investigation of composite electrochromic films based on Ni(Oh)2, polyvinyl alcohol, and polyvinylpyrrolidone." Eastern-European Journal of Enterprise Technologies 3, no. 6 (117) (2022): 58–65. https://doi.org/10.15587/1729-4061.2022.259329.

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The cost of electrochromic “smart” windows ranges from 200–800 USD/m<sup>2</sup>. The high cost is determined by the small volume of production and the high cost of vacuum methods for applying device layers. The development of other methods could lead to lower costs and further mass use of “smart” windows. The paper presents the work on improving the electrochemical method of deposition of electrochromic films based on Ni(OH)<sub>2</sub>. Composite electrochromic films were deposited from Ni(NO<sub>3</sub>)<sub>2</sub> solutions with the addition of wate

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Wei, Yifan, Zhengquan Fu, Hao Zhao, et al. "Preparation of PVA Fluorescent Gel and Luminescence of Europium Sensitized by Terbium (III)." Polymers 12, no. 4 (2020): 893. http://dx.doi.org/10.3390/polym12040893.

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Polyvinyl alcohol (PVA) gel has a very wide range of applications in agriculture, military, industry, and other fields. As a widely used water-soluble polymer, PVA has good mechanical properties, excellent spinnability, good hydrophilicity, remarkable physical and chemical stability, good film formation, is non-polluting, and exhibits good natural degradation and biocompatibility. It is an ideal gel preparation material. Incorporation of rare-earth elements into PVA polymers can be used to prepare rare-earth luminescent gel materials. Results show that the luminescent efficiency of complexes i

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Yilmaz Dogan, Hazal, Yasin Altin, and Ayşe Çelik Bedeloğlu. "Fabrication and properties of graphene oxide and reduced graphene oxide reinforced Poly(Vinyl alcohol) nanocomposite films for packaging applications." Polymers and Polymer Composites 30 (January 2022): 096739112211133. http://dx.doi.org/10.1177/09673911221113328.

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Petroleum-based polymers have a wide range of uses in the packaging industry, including films, food packaging, rigid containers, foamed containers, medical products, etc. This study focuses on improving the properties of polyvinyl alcohol (PVA) based material systems, one of the most popular water-soluble biopolymers, to reduce the waste of petroleum-based plastics, which are widely used. Polyvinyl alcohol (PVA) nanocomposite films containing low concentrations (0.05–1%) of graphene oxide (GO) and reduced graphene oxide (rGO) were produced via the solution casting method. When electrical prope

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Ding, Jie, Rong Zhang, Saeed Ahmed, Yaowen Liu, and Wen Qin. "Effect of Sonication Duration in the Performance of Polyvinyl Alcohol/Chitosan Bilayer Films and Their Effect on Strawberry Preservation." Molecules 24, no. 7 (2019): 1408. http://dx.doi.org/10.3390/molecules24071408.

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In this study, we fabricated polyvinyl alcohol (PVA)/chitosan (CS) bilayer films by casting and investigated the effects of preparation conditions and CS content (2, 2.5, or 3 wt.%) on the ability of these films to preserve packaged strawberries. The best performance was achieved at a CS loading of 2.5 wt.% (ultrasound time, 25 min); the strain and stress values were 143.15 ± 6.43% and 70.67 ± 0.85 MPa, respectively, oxygen permeability was 0.16 ± 0.08 cm2·m2·day−1·MPa−1, water vapor permeability was 14.93 ± 4.09 g·cm−1·s−1·Pa−1, and the shelf life of fresh strawberries packaged in the PVA/CS

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Kim, Garam, Harry Lee, Kamryn Arnold, and Joseph Rodriguez. "Reusing uncured Fiber-reinforced thermoset composite Prepreg waste with water-soluble PVA backing film." Sustainable Materials and Technologies 41 (September 2024): e01016. http://dx.doi.org/10.1016/j.susmat.2024.e01016.

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Lian, Zhouyang, Lirui Yuan, Wuji Wei, Qing Zhou, and Juncheng Jiang. "Controlled release and synergistic effects of polyvinyl alcohol (PVA) on phosphate corrosion inhibitor at the interface of thermal insulation and carbon steel." Anti-Corrosion Methods and Materials 62, no. 2 (2015): 109–15. http://dx.doi.org/10.1108/acmm-10-2013-1312.

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Purpose – This paper aims to study the controlled release and synergistic effect of water-soluble polyvinyl alcohol (PVA) on phosphate corrosion inhibitor at the interface of thermal insulation cotton/carbon steel. Design/methodology/approach – This study was carried out using a coating method, scanning electron microscopy, energy dispersive spectroscopy and AC impedance. Findings – The single-phase phosphate particles were coated/adsorbed on the PVA film, which was formed on the fiber surface of corrosion inhibitor/PVA-impregnated rock wool sample. On the surface of Q235 steel, an effective p

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Jing, Feng-Ya, and Yu-Qing Zhang. "Unidirectional Nanopore Dehydration Induces an Anisotropic Polyvinyl Alcohol Hydrogel Membrane with Enhanced Mechanical Properties." Gels 8, no. 12 (2022): 803. http://dx.doi.org/10.3390/gels8120803.

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As a biocompatible, degradable polymer material, polyvinyl alcohol (PVA) can have a wide range of applications in the biomedical field. PVA aqueous solutions at room temperature can be cast into very thin films with poor mechanical strength via water evaporation. Here, we describe a novel dehydration method, unidirectional nanopore dehydration (UND). The UND method was used to directly dehydrate a PVA aqueous solution to form a water-stable, anisotropic, and mechanically robust PVA hydrogel membrane (PVAHM), whose tensile strength, elongation at break, and swelling ratio reached values of up t

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Jabir, Saba Abdulhadee, and Halah Talal Sulaiman. "PREPARATION AND CHARACTERIZATION OF LAFUTIDINE AS IMMEDIATE RELEASE ORAL STRIP USING DIFFERENT TYPE OF WATER-SOLUBLE POLYMER." International Journal of Applied Pharmaceutics 10, no. 5 (2018): 249. http://dx.doi.org/10.22159/ijap.2018v10i5.28292.

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Objective: The objective of the present study was to design and optimize oral fast dissolving film (OFDF) of practically insoluble drug lafutidine in order to enhance bioavailability and patient compliance especially for a geriatric and unconscious patient who are suffering from difficulty in swallowing.Methods: The films were prepared by a solvent casting method using low-grade hydroxyl propyl methyl cellulose (HPMC E5), polyvinyl alcohol (PVA), and sodium carboxymethyl cellulose (SCMC) as film forming polymers. Polyethylene glycol 400 (PEG400), propylene glycol (PG) and glycerin were used as

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Alwan, Zahraa Salim, and Nawal Ayash Rajab. "Preparation and Characterization of Febuxostat Nanosuspension as Fast Dissolving Oral Film." Al-Rafidain Journal of Medical Sciences ( ISSN 2789-3219 ) 6, no. 2 (2024): 171–77. http://dx.doi.org/10.54133/ajms.v6i2.873.

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Background: Quickly dissolved oral films are a widely accepted method of delivering drugs and help patients adhere to treatment regimens. Nanosuspensions (NS) are colloidal dispersions of drug particles with a submicron size, and their large surface area enhances the solubility and dissolution of low-water-soluble drugs. Febuxostat (FXT) is a non-purine xanthine oxidase inhibitor with a low dissolution rate that limits its absorption. Objective: To develop fast-dissolving oral films (FDOFs) containing FXT NS and convert NS into solid dosage forms to ease administration and accelerate drug rele

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Bhardwaj, Shubhang, and Nishi Kant Bhardwaj. "Mixing of oxidized starch and polyvinyl alcohol for surface sizing of paper." Nordic Pulp & Paper Research Journal 34, no. 3 (2019): 343–53. http://dx.doi.org/10.1515/npprj-2018-0063.

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Abstract Surface sizing chemical (mostly oxidized or enzymatically modified starch) flows into the pores of cellulose network and also remains on the surface affecting the surface and intrinsic properties of paper. Polyvinyl alcohol (PVA) can be used for surface sizing because it is a water soluble polymer and has high film forming ability. Due to economic constraints, using PVA alone for surface sizing is not a good option. Current study explored the effects of using oxidized starch and PVA in mixed ratios (80:20, 50:50 and 20:80) on mechanical and surface properties of paper. The surface siz

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Shammi, Mehra*. "HYDROGRAPHIC PRINTING: AN OVERVIEW." INTERNATIONAL JOURNAL OF ENGINEERING SCIENCES & RESEARCH TECHNOLOGY 6, no. 6 (2017): 320–24. https://doi.org/10.5281/zenodo.809180.

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Graphics technologies have made significant evolution with the time and achieved new horizons in the field of technology. Hydrographic printing is an innovative printing process. Hydrographic printing is a technique of applying two dimensional printed designs to complex 3D surfaces using water. Prior to this innovation, printing on such complex surfaces are done by chemically or electroplating techniques. A customized pattern can be printed simply onto complex surfaces. It is applicable where direct printing is not possible. In this technique, water-soluble transfer PVA film that carries a spe

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Barleany, Dhena Ria, Meri Yulvianti, Jayanuddin Jayanuddin, Hilman Rasyid Setiadi, and Rizky Mulyo Prasetyo. "Green Coconut (Cocos nucifera L.) Husk Extract as Milk Freshness Indicator in Chitosan/ Polyvinyl Alcohol-based Smart Packaging Films." Jurnal Riset Kimia 16, no. 1 (2025): 1–13. https://doi.org/10.25077/jrk.v16i1.738.

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The growing demand for sustainable and eco-friendly food packaging has prompted research into innovative solutions that tackle environmental challenges and consumer health concerns. Food spoilage typically results from microbial activity, which is subsequently influenced by alterations in pH levels within the packaging environment. Plants, such as green coconut husk extract, contain anthocyanin, a water-soluble natural pigment with significant antioxidant and antibacterial properties, whose color changes in response to variations in the surrounding pH. This research focuses on the development

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Piqué, Teresa María, Humberto Balzamo, and Analía Vázquez. "Evaluation of the Hydration of Portland Cement Modified with Polyvinyl Alcohol and Nano Clay." Key Engineering Materials 466 (January 2011): 47–56. http://dx.doi.org/10.4028/www.scientific.net/kem.466.47.

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Polyvinylalcohol (PVA) is a polymer soluble in hot water, it has the property of film formation and it can improve the concrete performance. The effects of PVA modified with nano clay on the cement hydration reaction have been investigated by means of semiadiabatic calorimeter, FTIR spectroscopy and SEM. FTIR spectroscopy was employed to monitor chemical transformation of cement. The morphology of the different samples was compared by means of SEM micrographs. With the semiadiabatic calorimeter the hydration kinetic was measured to compare the heat rate of the admixtures materials. Fixing the

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Santos, Ana R., and Júlio C. Viana. "The Development of a Flexible Humidity Sensor Using MWCNT/PVA Thin Films." Nanomaterials 14, no. 20 (2024): 1653. http://dx.doi.org/10.3390/nano14201653.

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The exponential demand for real-time monitoring applications has altered the course of sensor development, from sensor electronics miniaturization, e.g., resorting to printing techniques, to low-cost, flexible and functional wearable materials. Humidity sensing has been used in the prevention and diagnosis of medical conditions, as well as in the assessment of physical comfort. This paper presents a resistive flexible humidity sensor composed of silver interdigitated electrodes (IDTs) screen printed onto polyimide film and an active layer of multiwall carbon nanotubes (MWCNT) dispersed in a wa

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Rajani, B. K., Ashok kumar P., and V. Kulkarn Suresh. "Design and characterization of fast dissolving buccal film of imipramine HCL." World Journal of Advanced Research and Reviews 16, no. 2 (2022): 258–70. https://doi.org/10.5281/zenodo.7785159.

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In depressed individuals, Imipramine exerts a positive effect on mood. TCAs are potent inhibitors of serotonin and norepinephrine reuptake. Imipramine hydrochloride having variable bioavailability i.e. ranging from 29-77% due to first pass metabolism, peak plasma concentration is usually attained 2-6 hours. Absorption is unaffected by food. It is freely soluble in water. The objective of this research work is to improve the bioavailability of the drug and fast the onset of action to decrease the depressant activity. The Buccal bioavailability of Imipramine HCL is only 29-77% for this reason dr

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SINGH, HARWINDER, AROBINDO CHATTERJEE, and NIDHI YADAV. "IMPACT OF GLUTARALDEHYDE CROSSLINKING AGENT ON THE PROPERTIES OF NONWOVEN VISCOSE FABRIC–POLYVINYL ALCOHOL FLEXIBLE COMPOSITES." Cellulose Chemistry and Technology 57, no. 7-8 (2023): 867–75. http://dx.doi.org/10.35812/cellulosechemtechnol.2023.57.76.

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In recent years, researchers and industries have made efforts to decrease the reliance on fossil fuel-based materials due to the rise in environmental consciousness. A potential environmentally friendly alternative to petroleum-based, non-biodegradable polymeric materials is known to be natural fiber-reinforced polymer composites. Polyvinyl alcohol (PVA) is a biodegradable synthetic polymer that is water-soluble, easy to use, having film-formation property and good potential as a biodegradable matrix in environmentally friendly composites. The objective of this work has been to create a versat

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Hatam, Sura Salam, and Eman Al-khedairy. "Formulation and characterization of bilastine - cyclodextrin inclusion complex loaded as an oral fast dissolving film." Journal of Research in Pharmacy 29, no. 1 (2025): 370–77. https://doi.org/10.12991/jrespharm.1634650.

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Oral fast dissolving films (OFDFs) are the most innovative oral solid pharmaceutical dosage form, especially for elderly and pediatric patients who may have dysphagia. Bilastine (BLA), is a second – generation antihistamine used to manage allergy symptoms; it is very slightly soluble in water. The main objective of this research was to enhance the solubility and dissolution rate of BLA by complexation technique. Ternary complex of BLA: methyl β- cyclodextrin (M-β-CD): soluplus® 5% w/w was prepared via solvent evaporation technique as a trial to enhance its solubility to be prepared as OFDF by

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Teleky, Bernadette-Emőke, Laura Mitrea, Diana Plamada, et al. "Development of Pectin and Poly(vinyl alcohol)-Based Active Packaging Enriched with Itaconic Acid and Apple Pomace-Derived Antioxidants." Antioxidants 11, no. 9 (2022): 1729. http://dx.doi.org/10.3390/antiox11091729.

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The production of active and biodegradable packaging materials is an emerging and efficient alternative to plastic packaging materials. By combining poly(vinyl alcohol) (PVA), pectin, and itaconic acid (IA), biodegradable and water-soluble packaging materials can be obtained that can also increase the shelf-life and quality of foodstuff. In the present study, the generated film-forming solutions were enriched with organic or phenolic extracts from apple by-products (apple pomace). These extracts possess an efficient antioxidant activity of 9.70 ± 0.08, and 78.61 ± 0.24 μM Trolox/100 g fresh we

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Sari, Nofita, Maudy Mairisya, Riska Kurniasari, and Sari Purnavita. "Bioplastik Berbasis Galaktomanan Hasil Ekstraski Ampas Kelapa Dengan Campuran Polyvinyl Alkohol." METANA 15, no. 2 (2019): 71–78. http://dx.doi.org/10.14710/metana.v15i2.24892.

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Penelitian ini bertujuan untuk mendapatkan kondisi optimum yang meliputi luas permukaan dan jumlah solven pada proses ekstraksi galaktomanan dari ampas kelapa terhadap yield yang dihasilkan dan mendapatkan kondisi optimumpada proses pembuatan bioplastik yang meliputi jumlah sorbitol dan waktu pencampuran terhadap karakteristik bioplastik yang meliputi ketebalan, ketahanan air, kuat tarik, elongasi, waktu degradasi dan morfologi.Bioplastik merupakan plastik yang dapat diuraikan oleh mikroorganisme dalam waktu yang singkat, sehingga lebih ramah lingkungan dibandingkan plastik konvensional.Biopla

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Rajani B K, P. Ashok kumar, and Suresh V Kulkarn. "Design and characterization of fast dissolving buccal film of imipramine HCL." World Journal of Advanced Research and Reviews 16, no. 2 (2022): 258–70. http://dx.doi.org/10.30574/wjarr.2022.16.2.1044.

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In depressed individuals, Imipramine exerts a positive effect on mood. TCAs are potent inhibitors of serotonin and norepinephrine reuptake. Imipramine hydrochloride having variable bioavailability i.e. ranging from 29-77% due to first pass metabolism, peak plasma concentration is usually attained 2-6 hours. Absorption is unaffected by food. It is freely soluble in water. The objective of this research work is to improve the bioavailability of the drug and fast the onset of action to decrease the depressant activity. The Buccal bioavailability of Imipramine HCL is only 29-77% for this reason dr

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Subramanian, Kumaran, Deivasigamani Balaraman, Kumaravel Kaliyaperumal, et al. "Preparation of an Intelligent pH Film Based on Biodegradable Polymers for Monitoring the Food Quality and Reducing the Microbial Contaminants." Bioinorganic Chemistry and Applications 2022 (June 20, 2022): 1–12. http://dx.doi.org/10.1155/2022/7975873.

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Hydrogel refers to a three-dimensional cross-linked polymeric network made of synthetic or natural polymers that can hold water in its porous structure. The inclusion of hydrophilic groups in the polymer chains, such as amino, carboxyl, and hydroxyl groups, contributes to the hydrogel’s water-holding ability. At physiological temperature and pH, these polymeric materials do not dissolve in water, but they do swell significantly in aqueous media. Hydrogel can be manufactured out of almost any water-soluble polymer, and it comes in a variety of chemical compositions and bulk physical properties.

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Liu, Jian, Jingwen Rong, Xiaoli Ji, Boyang Chen, and Yuan Wang. "Synergetic Effect Of Ternary Mixture Of Nano Silicon Carbide-Polyvinyl Alcohol-Lithium Sulfate On Early Strength Of Cement." Chiang Mai Journal of Science 50, no. 6 (2023): 1–15. http://dx.doi.org/10.12982/cmjs.2023.065.

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T o solve the problems of low compressive strength and unstable sealing capability of traditional hole sealing materials in the early stage of underground coal mines, a new cement-based sealing material was developed in this study by mixing ordinary Portland cement with nanomaterial, water-soluble polymer and lithium salt as additives. The early strength and the microstructure evolution of the as-prepared cement material were investigated with uniaxial compression test, scanning electron microscope (SEM), thermogravimetric analysis and X-ray diffraction (XRD). The results show that the ternary

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Kim, Jae Seon, and Chung Kun Song. "Textile Display with AMOLED Using a Stacked-Pixel Structure on a Polyethylene Terephthalate Fabric Substrate." Materials 12, no. 12 (2019): 2000. http://dx.doi.org/10.3390/ma12122000.

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An active-mode organic light-emitting diode (AMOLED) display on a fabric substrate is expected to be a prominent textile display for e-textile applications. However, the large surface roughness of the fabric substrate limits the aperture ratio—the area ratio of the organic light-emitting diode (OLED) to the total pixel area. In this study, the aperture ratio of the AMOLED panel fabricated on the polyethylene terephthalate fabric substrate was enhanced by applying a stacked-pixel structure, in which the OLED was deposited above the organic thin-film transistor (OTFT) pixel circuit layer. The st

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Kowalczyk, Dariusz, and Waldemar Kazimierczak. "Impact of Calcium Chloride Addition on the Microstructural and Physicochemical Properties of Pea Protein Isolate-Based Films Plasticized with Glycerol and Sorbitol." Coatings 14, no. 9 (2024): 1116. http://dx.doi.org/10.3390/coatings14091116.

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Ca2+ can boost protein-protein interactions and, if present at an appropriate level, can potentially improve some physicochemical properties of protein-based gels and films. This study aimed to determine the effects of CaCl2 (0%–0.05% w/w) on the microstructural, optical, water affinity, and mechanical characteristics of glycerol (Gly)- and sorbitol (Sor)-plasticized pea protein isolate (PPI)-based films. CaCl2 caused darkening and a color shift of the films from yellow to yellow-green. Additionally, decreased light transmission, particularly in the UV range, acidification, and reduced moistur

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