Properties of novel polyvinyl alcohol/cellulose nanocrystals/silver nanoparticles blend membranes

Xu, Xu; Yang, Yiqin; Xing, Yingying; Yang, Jie; Wang, Shifa

doi:10.1016/j.carbpol.2013.07.065

Cited by 71 publications

(32 citation statements)

References 30 publications

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“…In the medical field, PVA based nanocomposites were found suitable for tissue engineering applications such as scaffolds, drug delivery, medical implants, and wound dressing [72]. Rahman et al [26] and Gonzalez et al [42] described the possibility of PVA/nanocellulose as wound dressing.…”

Section: Applicationsmentioning

confidence: 99%

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A Review of Natural Fiber Reinforced Poly(Vinyl Alcohol) Based Composites: Application and Opportunity

et al. 2015

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Natural fibers are fine examples of renewable resources that play an important role in the composites industry, which produces superior strength comparable to synthetic fibers. Poly(vinyl alcohol) (PVA) composites in particular have attracted enormous interest in view of their satisfactory performance, properties and biodegradability. Their performance in many applications such as consumer, biomedical, and agriculture is well defined and promising. This paper reviews the utilization of natural fibers from macro to nanoscale as reinforcement in PVA composites. An overview on the properties, processing methods, biodegradability, and applications of these composites is presented. The advantages arising from chemical and physical modifications of fibers or composites are discussed in terms of improved properties and performance. In addition, proper arrangement of nanocellulose in composites helps to prevent agglomeration and results in a better dispersion. The limitations and challenges of the composites and future works of these bio-composites are also discussed. This review concludes that PVA composites have potential for use in numerous applications. However, issues on technological feasibility, environmental effectiveness, and economic affordability should be considered.

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Section: Applicationsmentioning

confidence: 99%

“…Previous literature has shown the reinforcement of micro-and nanocellulose in PVA composites for consumer and medical applications [26,42,72,73,86]. However, the agglomeration of nanocellulose could be a limitation to their wider applications.…”

Section: Challenges and Future Aspectsmentioning

confidence: 99%

A Review of Natural Fiber Reinforced Poly(Vinyl Alcohol) Based Composites: Application and Opportunity

et al. 2015

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“…Polyvinyl alcohol (PVA/PVOH) is an important synthetic water soluble polymer usually used for tablet coating, paper making, and wood processing due to its excellent film forming, emulsifying and adhesive properties [24] . Addition of PVOH on potato starchbaked foam can reduce foam hydrophobicity; increase foam strength and also provided some additional foaming ability [13] .…”

Section: Introductionmentioning

confidence: 99%

Effect of Corn Hominy and Polyvinyl Alcohol on Mechanical Properties of Cassava Starch-Baked Foam

Iriani

Irawadi

Sunarti

et al. 2015

Polymer-Plastics Technology and Engineering

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Agromaterials such as starch and fiber are very promising raw materials to reduce our dependence on polystyrene. Corn hominy, a by-product of the corn milling industry, is a potential source to reinforce starch-baked foam. The effects of corn hominy and PVOH addition on mechanical properties of Cassava starch foam were investigated. Different formulations of Cassava starch, corn hominy and PVOH were mixed with liquid to get total solids at 50% and baked in a thermopressing machine at 150-170°C for 2 min. The results showed that corn hominy and PVOH addition can improve compressibility and tensile strength of the foams but gave denser foam and darker color. Ratio of tapioca: corn hominy: PVOH ¼ (75:25):30% gave the best foam properties.

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“…PVA / nanocellulose hydrogels can be used as super-absorbents to deal with water pollution problems due to oils spills or chemical spilage [26] . In the medical field, PVA films could be used as wound dressings [10,27] and be doped with silver nanocrystals to increase bacterial resistance while protecting skin wounds [28] In all these cases, features such as chemical and mechanical resistance are decisive for the behavior of separation membranes.…”

Section: Introductionmentioning

confidence: 99%

Reinforcement of poly (vinyl alcohol) films with alpha-chitin nanowhiskers

Oliveira

2018

Polímeros

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Composites Films were produced using Poly (Vinyl Alcohol) as the soft material and reinforced with Chitin Nanowhiskers(NWCH) as the rigid material. The present work studies the reinforcing mechanisms of NWCH in PVA films, made through a solvent casting technique and characterized for their calorimetric, swelling and mechanical properties. DSC tests revealed a sharp increase of 45 °C in glass transition temperatures with only 1.5% NWCH, while melting temperature had a small increases suggesting an anti-plasticizing effect. Swelling tests revealed decreasing hygoscopy when NWCH volume fraction increases. Estimates for elastic tensile modulus using a model that predicts the formation of a percolating network were not consistent with the experimental data of tensile tests suggesting that contrary to the reinforcement with cellulose nanowhiskers the percolating network is not primarily responsible for the reinforcement of the films. By adjusting the Halpin-Tsai equations, modified by Nielsen it was found that the mechanical properties were mainly influenced by the packing of the NWCH.

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Properties of novel polyvinyl alcohol/cellulose nanocrystals/silver nanoparticles blend membranes

Cited by 71 publications

References 30 publications

A Review of Natural Fiber Reinforced Poly(Vinyl Alcohol) Based Composites: Application and Opportunity

A Review of Natural Fiber Reinforced Poly(Vinyl Alcohol) Based Composites: Application and Opportunity

Effect of Corn Hominy and Polyvinyl Alcohol on Mechanical Properties of Cassava Starch-Baked Foam

Reinforcement of poly (vinyl alcohol) films with alpha-chitin nanowhiskers

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