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Effect of vinyl silane modification on thermal and mechanical properties of starch-polyvinyl alcohol blend
Designed Monomers and Polymers ( IF 1.6 ) Pub Date : 2019-01-01 , DOI: 10.1080/15685551.2019.1678223
Ravindra V Gadhave 1 , Prakash A Mahanwar 1 , Pradeep T Gadekar 1
Affiliation  

ABSTRACT This study aims to observe the effect of addition of silane coupling agent on polyvinyl alcohol and starch-PVA blend. Starch and PVA blend with citric acid addition was prepared. Silane-modified polymer was obtained by treating polyvinyl alcohol and starch-PVA blend with Trimethoxyvinylsilane. The blend has been tested against the canarium wood substrate for tensile strength. A further property like viscosity has also been evaluated. Analytical tests such as DSC and DMA proved the phenomenon of cross-linking, having shown an increase in glass transition temperature and area under the curve of tan delta. The efficient and novel method for polymerization of vinyl groups present in the PVA and PVA-starch blends has contributed to better adhesion on the wood substrate and also better cohesion between the chains.

中文翻译:

乙烯基硅烷改性对淀粉-聚乙烯醇共混物热力学性能的影响

摘要 本研究旨在观察硅烷偶联剂的加入对聚乙烯醇和淀粉-PVA 共混物的影响。制备加入柠檬酸的淀粉和 PVA 混合物。通过用三甲氧基乙烯基硅烷处理聚乙烯醇和淀粉-PVA 共混物获得硅烷改性聚合物。该混合物已针对金雀花木材基材进行了拉伸强度测试。还评估了其他特性,如粘度。DSC 和 DMA 等分析测试证明了交联现象,显示出玻璃化转变温度和 tan δ 曲线下面积的增加。PVA 和 PVA 淀粉共混物中乙烯基聚合的有效且新颖的方法有助于更好地粘附在木材基材上,也有助于链之间更好的内聚力。
更新日期:2019-01-01
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