Ecofriendly poly(vinyl alcohol) and coconut shell powder composite films: Physico-mechanical, thermal properties, and swelling studies

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作者：
Ramaraj, B. [1 ]
Poomalai, P. [1 ]
机构：
[1] Central Institute of Plastics Engineering and Technology, Mysore 570 016, India
来源：
Journal of Applied Polymer Science | 2006年 / 102卷 / 04期
关键词：
Poly(vinyl alcohol) (PVA) composites with 10; 20; 33; and 50 wt % of coconut shell (CCS) powder were prepared by aqueous mixing. The solution was casted as films and tested for physicomechanical properties such as tensile; tear; burst strengths; density; moisture content; moisture vapor transmission rate; moisture analysis; solubility resistance in water; 5% acetic acid; 50%; ethanol; sunflower oil; swelling characteristics in 50% ethanol; and thermal characteristics by differential scanning calorimetry. The PVA/CCS powder composite films show enhancement in elastic modulus; degradability; and moisture resistance. However; the introduction of CCS powder varies the tensile strength and affects percentage of elongation; tear and burst strengths; and swelling capacity. © 2006 Wiley Periodicals; Inc;
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页码：3862 / 3867
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