PLA/ABS复合材料的制备与性能研究  

Study on Preparation and Properties of PLA/ABS Composites

作　　者：马丽 丁井鲜 余圣 郭东杰 周立明 MA Li;DING Jing-xian;YU Sheng;GUO Dong-jie;ZHOU Li-ming(College of Materials and Chemical Engineering,Zhengzhou University of Light Industry,Zhengzhou 450001,China)

机构地区：[1]郑州轻工业大学材料与化学工程学院,河南郑州450001

出　　处：《塑料科技》2022年第3期9-12,共4页Plastics Science and Technology

基　　金：河南省科技攻关项目(162102210058)。

摘　　要：选取丙烯腈-丁二烯-苯乙烯共聚物(ABS)接枝马来酸酐(ABS-g-MAH)、聚苯乙烯接枝马来酸酐(PS-g-MAH)和苯乙烯-丙烯腈-甲基丙烯酸缩水甘油酯共聚物(SAG)等界面相容剂,改进聚乳酸(PLA)/ABS复合材料的界面相容性。结果表明:SAG能够有效改善复合材料的界面相容性,提高复合材料的力学性能、热稳定性和耐热性,同时使PLA/ABS的储能模量(G′)、损耗模量(G″)和复数黏度(η^(*))增大。SAG添加量为3%时,复合材料的拉伸强度和无缺口冲击强度分别为57.3 MPa和35.4 kJ/m^(2),相比未添加界面相容剂分别提高87%和116%。The interfacial compatibility of polylactic acid(PLA)/ABS composites was improved by selecting interfacial compatibilizers such as acrylonitrile-butadiene-styrene copolymer(ABS) grafted maleic anhydride(ABS-g-MAH),polystyrene grafted maleic anhydride(PS-g-MAH) and styrene-acrylonitrile-glycidyl methacrylate copolymer(SAG). The results show that SAG can effectively improve the interfacial compatibility, mechanical properties, thermal stability and heat resistance of composites, and increase the storage modulus(G′), loss modulus(G″) and complex viscosity(η;) of PLA/ABS. When the content of SAG is 3%, the tensile strength and unnotched impact strength of composites are 57.3 MPa and 35.4 kJ/m^(2), respectively, which are 87% and 116% higher than those without interfacial compatibilizer.

关 键 词：聚乳酸 丙烯腈-丁二烯-苯乙烯共聚物 苯乙烯-丙烯腈-甲基丙烯酸缩水甘油酯共聚物 力学性能 

分 类 号：TB332[一般工业技术—材料科学与工程]