淀粉／WPUR生物可降解塑料的制备与性能  

Preparation and Properties of Starch/WPUR Biodegradable Plastic

作　　者：李林[1] 牛明军[1] 李新法[1] 陈金周[1] Li Lin;Niu Mingjun;Li Xinfa;Chen Jinzhou(School of Materials Science and Engineering, the Center for Packaging Design and Research, Zhengzhou University, Zhengzhou　450001, China)

机构地区：[1]郑州大学材料科学与工程学院,郑州大学包装设计研究中心,郑州450001

出　　处：《工程塑料应用》2016年第11期40-43,66,共5页Engineering Plastics Application

摘　　要：以玉米淀粉与水性聚氨酯(WPUR)为主要原料,以甘油为增塑剂,采用熔融共混工艺制备了生物可降解热塑性淀粉塑料(TPS)/WPUR共混物。考察了TPS/WPUR共混物的微观结构、成型加工性能、力学性能和耐水性能等。结果表明,WPUR不仅有利于TPS的塑化和改善其熔体流动性,而且也有利于提高其拉伸性能和耐水性。Biodegradable thermoplastic starch plastic(TPS)/water-soluble polyurethane(WPUR) blend was prepared with corn starch and WPUR as main raw materials,glycerol as plasticizers by melt-blending process. The micro-structure,processing performance,mechanical properties and water resistance of TPS/WPUR blend were investigated. It was found that WPUR was not only beneficial to improve the plasticity and melt fluidity of TPS,but also increased its tensile strength and water resistance.

关 键 词：热塑性淀粉塑料 水性聚氨酯 力学性能 耐水性 

分 类 号：TQ32[化学工程—合成树脂塑料工业]