挤出-注塑制备黄麻增强PLA复合材料及其性能  

Properties of Jute Reinforced PLA Composites Prepared by Extrusion and Injection Molding

作　　者：姜爱菊[1] 刘乾轩 单翔翔 贺豪帅 Jiang Aiju;Liu Qianxuan;Shan Xiangxiang;He Haoshuai(School of Mechanical Engineering,Huanghe Science and Technology College,Zhengzhou,Henan,450000)

机构地区：[1]黄河科技学院机械工程学院,河南郑州450000

出　　处：《现代塑料加工应用》2020年第1期20-23,共4页Modern Plastics Processing and Applications

基　　金：郑州市科技局科技攻关项目(20150336)。

摘　　要：通过挤出共混、造粒、注射成型的方式制备了黄麻纤维填充聚乳酸(PLA)复合材料,研究了复合材料的力学性能以及黄麻与PLA之间的微观界面形貌。结果表明:黄麻的加入,并没有很好地改善黄麻/PLA复合材料的拉伸强度和弯曲强度;碱处理后的黄麻与PLA之间的界面性能有所改善;碱处理黄麻的加入,改善了黄麻/PLA复合材料的断裂伸长率与冲击韧性。Jute fiber reinforced poly(lactic acid)(PLA) composites were prepared by extrusion blending and then injection molding. The mechanical properties and micro-morphology of interface between jute fiber and PLA matrix of composites were studied. The results show that the tensile strength and flexural strength are not improved after the addition of jute fiber. The interfacial adhesion of alkali treatment jute fiber reinforced PLA composites are improved, however, the elongation at break and the impact toughness of the jute fiber/PLA composites are improved.

关 键 词：黄麻纤维 聚乳酸 挤出共混 注射成型 

分 类 号：TB332[一般工业技术—材料科学与工程]