耐热聚乳酸的制备与性能研究  

Preparation and Properties of Heat Resistant Polylactic Acid

作　　者：胡志刚 郭海涛 张作宁 HU Zhi-gang;GUO Hai-tao;ZHANG Zuo-ning(Silver Age Engineering Plastics Co.Ltd.,Dongguan 523187,Guangdong,China)

机构地区：[1]银禧工程塑料(东莞)有限公司,广东东莞523187

出　　处：《合成材料老化与应用》2022年第4期17-19,共3页Synthetic Materials Aging and Application

摘　　要：以耐热PBS为改性剂,通过与成核剂复配共混挤出制备聚乳酸(PLA)合金材料,并对PLA合金材料的结晶、耐热、力学性能等研究分析。结果表明,10%PBS的加入在不加成核剂的情况下能够显著提高聚乳酸的结晶性能。10%PBS和成核剂SDA260复配能够显著增加材料的耐热温度,耐热温度达到115℃。PBS的加入对于提高聚乳酸冲击性能具有一定的效果,对降低材料脆性以及力学性能保持率中具有显著效果。Using heat-resistant PBS as modifier,the poly lactic acid alloy material is prepared by compounding and extruding with a nucleating agent,and the crystallization,heat resistance,and mechanical properties of the alloy material are analyzed and explored.The results show that the addition of 10%PBS can significantly improve the crystallization performance of poly lactic acid without adding nucleating agent.The combination of 10%PBS and nucleating agent SDA260 can significantly increase the heat-resistant temperature of the material,which can reach 115℃.The addition of PBS has a certain effect on improving the impact performance of poly lactic acid,can improve the brittleness of poly lactic acid,and has a small effect on the mechanical properties of poly lactic acid.

关 键 词：聚乳酸 耐热 PBS 成核剂 

分 类 号：TQ327.9[化学工程—合成树脂塑料工业]