Journal ArticleDOI
A review on mechanical and water absorption properties of polyvinyl alcohol based composites/films
TLDR
In this paper, the authors reviewed the mechanical and water absorption properties of PVA-based composites and concluded that PVA has the potential for use in the synthesis of composites/films with their abundant applications.Abstract:
Abstract Polyvinyl alcohol (PVA) is a nontoxic and thermoplastic polymer which is completely biodegradable. PVA shows excellent mechanical and thermal properties due to better interfacial adhesion with reinforcing material such as fibers, particles or flakes because of which it can be used for fabrication of composite. PVA based fiber or particle reinforcing composites have gained interest in many applications in different fields. This paper reviews the mechanical and water absorption properties studied by different researcher and some of them were discussed here. The article also focused on the effect on the mechanical properties on PVA based composites with particle or fiber used as reinforcing material at nano/micro level and different polymers used to prepare PVA blend films. The major disadvantage of PVA based composites/films is higher water uptake or solubility in water. To over this negative aspect, many researchers studied crosslinking of PVA based composites/films, which are also discussed in the article. This review concludes that PVA has the potential for use in the synthesis of composites/films with their abundant applications.read more
Citations
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End-to-end design of wearable sensors
H. Ceren Ates,Peter Q. Nguyen,Laura Gonzalez-Macia,Eden Morales-Narváez,Firat Güder,J. J. Collins,Can Dincer +6 more
TL;DR: Wearable devices provide an alternative pathway to clinical diagnostics by exploiting various physical, chemical and biological sensors to mine physiological (biophysical and/or biochemical) information in real time (preferably, continuously) and in a non-invasive or minimally invasive manner as mentioned in this paper .
Journal ArticleDOI
Chemical and physical Chitosan modification for designing enzymatic industrial biocatalysts: How to choose the best strategy?
Yale Luck Nunes,Fernando Lima de Menezes,Isamayra Germano de Sousa,Antônio Luthierre Gama Cavalcante,Francisco Thálysson Tavares Cavalcante,Katerine da Silva Moreira,André L. B. de Oliveira,Gabrielly Ferreira Mota,José Erick da Silva Souza,Italo Rafael de Aguiar Falcão,Thales Guimaraes Rocha,Roberta Bussons Rodrigues Valério,Pierre Basílio Almeida Fechine,Maria Cristiane Martins de Souza,José C. S. dos Santos,José C. S. dos Santos +15 more
TL;DR: In this paper, the authors present Chitosan as an ideal support for enzyme immobilization and discuss physicochemical modifications that can be made to it, mentioning the improvements obtained in each process.
Journal ArticleDOI
Development of antioxidant, antimicrobial and ammonia-sensitive films based on quaternary ammonium chitosan, polyvinyl alcohol and betalains-rich cactus pears (Opuntia ficus-indica) extract
TL;DR: In this article, the authors used Cactus pears extract (CPE) into quaternary ammonium chitosan (QAC)/polyvinyl alcohol (PVA) blend to develop antioxidant, antimicrobial and ammonia-sensitive packaging films.
Journal ArticleDOI
Dynamic Mechanical Analysis and Creep-recovery behaviour of Polyvinyl Alcohol based cross-linked Biocomposite reinforced with Basalt fiber
Journal ArticleDOI
Biopolymeric Sustainable Materials and their Emerging Applications
TL;DR: An overview of the latest knowledge of different natural and synthetic-based biodegradable polymers and their fiber-reinforced composites is presented in this paper , which discusses different degradation mechanisms of biopolymer-based composites as well as their sustainability aspects.
References
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Journal ArticleDOI
Active chitosan/PVA films with anthocyanins from Brassica oleraceae (Red Cabbage) as Time–Temperature Indicators for application in intelligent food packaging
TL;DR: In this paper, a Time-Temperature Indicator (TTI) based on a PVA/Chitosan polymeric doped with anthocyanins was used to detect changes in the pH of packaged food products when subjected to improper storage temperatures.
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Cellulose whiskers reinforced polyvinyl alcohol copolymers nanocomposites
Mehdi Roohani,Mehdi Roohani,Youssef Habibi,Naceur Belgacem,Ghanbar Ebrahim,Ali Karimi,Alain Dufresne +6 more
TL;DR: In this paper, a colloidal aqueous suspension of cellulose whiskers was used as filler to obtain tensile properties of polyvinyl alcohol (PVA) nanocomposite materials.
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Poly(vinyl alcohol) cryogels employed as matrices for cell immobilization. 3. Overview of recent research and developments
Vladimir I. Lozinsky,F.M. Plieva +1 more
TL;DR: By cell entrapment within PVA cryogel matrices, diverse immobilized biocatalysts were prepared which were capable of performing both a simple monoenzyme biotransformation of respective substrates and a complex biosynthesis of various high- and low-molecular-weight products, decompose pollutants, and operate in biosensors.
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Preparation and properties of microfibrillated cellulose polyvinyl alcohol composite materials
TL;DR: In this article, the preparation of MFC-PVA composite films, and the thermal and mechanical properties of these films were reported, and it has been shown that MFC is an excellent reinforcement comparable to cellulose nanowhiskers.
Journal ArticleDOI
Active chitosan–polyvinyl alcohol films with natural extracts
TL;DR: In this paper, aqueous mint extract (ME)/pomegranate peel extract (PE) was used to improve the tensile strength of chitosan and polyvinyl alcohol (PVA) active films.