聚乳酸/聚烯烃弹性体/淀粉复合材料的制备及性能研究  

Preparation and Performance of the Polylactic acid/Polyolefin-Elastomer/Thermoplastic Starch Composite Materials

作　　者：文胜[1] 闫礼成[2] 龚春丽[1] 郑根稳[1] 周毅[1] 

机构地区：[1]孝感学院化学与材料科学学院,湖北孝感432000 [2]湖北大学材料科学与工程学院,湖北武汉430062

出　　处：《胶体与聚合物》2011年第2期81-83,共3页Chinese Journal of Colloid & Polymer

基　　金：湖北省教育厅优秀中青年人才项目(Q20092605)

摘　　要：采用熔融共混法制备了一系列聚乳酸(PLA)/聚烯烃弹性体(POE)/塑化淀粉复合材料,通过热重(TG)、差示扫描量热仪(DSC)和拉伸测试对复合材料的热性能和力学性能进行了表征。结果表明:甘油作为塑化剂能有效改善聚乳酸和淀粉之间的相容性;而随着塑化淀粉含量的增加,复合材料的玻璃化转变温度和熔点逐渐降低;另外,复合材料的力学性能随着塑化淀粉含量的增加而降低,当(PLA/POE)/淀粉为7/3时,复合材料的力学性能最好。In the paper,a series of polylactic acid/polyolefin elastomer/thermoplastic starch composite materials were prepared via melt-blending method.The thermal and mechanical properties were characterized by TGA,DSC and tensile test.The results showed that the compatibility between polylactic acid and starch was improved by glycerol.And the glass transition temperature of the composite materials decreased with the starch content increased.Furthermore,the mechanical performance of the composite materials decreased with the addition of starch.When the mass ratio of（PLA/POE）： starch was 7/3,the mechanical performance of the blends was better than other samples.

关 键 词：聚乳酸 聚烯烃弹性体 甘油 淀粉 

分 类 号：TQ323.4[化学工程—合成树脂塑料工业]