Study on Season Factor in the Preparation of PVA/RS Composite

Abstract:

The effect of season factor on the performances of poly (vinyl alcohol)/rice straw (PVA/RS) composites prepared by hot-pressing was studied. Two forms of RS, including shortcut RS and RS wires, were used to prepare composite. For PVA/ shortcut RS composites, samples of winter showed higher tensile strength and strength at tensile fracture at different PVA contents than that of summer. When PVA content is 50%, tensile strength of winter sample is 136% higher than that of summer sample and strength at tensile fracture of winter sample is 320% higher than that of summer sample. In addition, samples of winter showed lower tensile stretch and higher hardness at different PVA contents than that of summer. For PVA/RS wire composites, the comparison results are similar. These indicated that season is an important factor for preparing plant based composite with PVA as adhesive.

• Periodical: Advanced Materials Research (Volumes 881-883)
• Pages: 1171-1174
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.881-883.1171
• Online since: January 2014
• Authors: Chuan Bao Wu*
• Keywords: Composite, Hot Pressing, Rice Straw, Season

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