Thermomechanical properties of biodegradable films based on blends of gelatin and poly(vinyl alcohol)

2008 ◽  
Vol 22 (8) ◽  
pp. 1485-1492 ◽  
Author(s):  
Oscar Mendieta-Taboada ◽  
Paulo José do A. Sobral ◽  
Rosemary A. Carvalho ◽  
Ana Mônica B.Q. Habitante
2020 ◽  
pp. 096739112091845
Author(s):  
Olga Mysiukiewicz ◽  
Mateusz Barczewski ◽  
Danuta Matykiewicz ◽  
Katarzyna Skórczewska

The object of the research was biodegradable hybrid composites based on poly(vinyl alcohol) (PVA), reinforced with cotton/flax woven fabric and 5–30 phr of chestnut shell powder, a waste filler. The influence of the lignocellulosic particles on mechanical, thermal, and thermomechanical properties of the composites determined in static tensile test, thermogravimetric analysis, and dynamic mechanical thermal analysis and evaluated in reference to the materials’ structures assessed by means of optical microscopy. The analysis was complemented with evaluation of physical properties of the composites, such as density and moisture content. It was found that the hybrid composites present favorable properties and addition of the waste filler does not cause a deterioration of the thermomechanical characteristics of the materials. Utilization of the waste filler for production of the PVA-based composites is consistent with the idea of Circular Economy and also allows to obtain materials with properties comparable with the ones of conventional polymers.


2013 ◽  
Vol 35 (6) ◽  
pp. 1117-1131 ◽  
Author(s):  
Steven Spoljaric ◽  
Arto Salminen ◽  
Nguyen Dang Luong ◽  
Panu Lahtinen ◽  
Jari Vartiainen ◽  
...  

Author(s):  
José Augusto de Almeida Nascimento ◽  
Amanda Félix dos Santos ◽  
Ivo Diego Lima Silva ◽  
Eduardo Henrique Lago Falcão ◽  
Douglas de Britto ◽  
...  

2011 ◽  
Vol 380 ◽  
pp. 234-237
Author(s):  
Yu Bin Lv ◽  
Quan Xiao Liu ◽  
Wen Cai Xu ◽  
Jin Li Li

Polyvinyl alcohol (PVA) is a kind of biodegradable film material, and its degradation process is mainly done through PVA-degrading enzymes, but the film biodegradation cycle is longer, so it needs other polymers with favorable biodegradability to improve the degradation rate in the nature environment. In this paper the biodegradation mechanism of PVA films and the influence of structural feature on biodegradability were described. The research development of starch-based biodegradable PVA films by blending starch to reduce the biodegradation cycle was emphasized and the biodegradable films modified by chitosan to improve film properties was briefly described.


2015 ◽  
Vol 132 (16) ◽  
pp. n/a-n/a ◽  
Author(s):  
Jobin Jose ◽  
Mamdouh A. Al-Harthi ◽  
Mariam Al-Ali AlMa'adeed ◽  
Jolly Bhadra Dakua ◽  
Sadhan K. De

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