热塑性木薯淀粉/聚乙烯醇复合材料降解性能的研究  

Study on Degradation of TPS/PVA Composite

作　　者：刘钰馨[1] 莫羡忠[1] 庞锦英[1] 李建鸣[1] 

机构地区：[1]广西师范学院化学与材料科学学院,广西南宁530001

出　　处：《现代塑料加工应用》2015年第5期12-14,共3页Modern Plastics Processing and Applications

基　　金：广西自然科学基金项目(2014GXNSFBA118248);广西高校科学技术研究项目(KY2015LX196)

摘　　要：采用密炼熔融法制备热塑性木薯淀粉(TPS)/聚乙烯醇(PVA)复合材料,研究了复合材料的吸水性能、生物降解性能及熔融行为。结果表明:随着PVA 2种牌号(PVA-1799和PVA-1788)用量的增加,TPS/PVA共混物的吸水率升高、生物降解率降低。熔融行为研究发现,随着PVA用量增加,TPS/PVA共混物的熔融峰温度提高而熔融焓降低,且TPS/PVA-1799共混物的熔融峰温度高于TPS/PVA-1788共混物的。Thermoplastic cassava starch （TPS）/polyvinyl alcohol （PVA）composite ma-terials were prepared by mixing melting method,and the water absorption,biodegrada-tion and melting behavior of composite materials were investigated.The results indicate that the water absorption of TPS/PVA blend increases and the biodegradation rate de-creases with the increasing of PVA-1799 and PVA-1788 content.It was also found from the melting behavior research that with the increasing of the PVA amount,the melting peak temperature of TPS/PVA blends increases and the melting enthalpy decreases. Furthermore,the melting peak temperature of TPS/PVA-1799 blend is higher than that of TPS/PVA-1788 blend.

关 键 词：木薯淀粉 聚乙烯醇 复合材料 吸水性能生物降解性能 

分 类 号：TB332[一般工业技术—材料科学与工程]