POE-g-MAH和EPDM增韧改性回收聚丙烯/玻璃纤维复合材料性能的研究  

Study on Properties of POE-g-MAH and EPDM Toughened Modified Recycled Polypropylene/Glass Fiber Composites

作　　者：陈荣源 金碧辉 韩琳 张忠厚 方少明 CHEN Rong-yuan;JIN Bi-hui;HAN Lin;ZHANG Zhong-hou;FANG Shao-ming(Department 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》2023年第8期22-26,共5页Plastics Science and Technology

基　　金：河南省重点研发与推广专项(科技攻关)(212102210204);郑州轻工业大学重大项目成果培育项目(2022ZDPY0106);郑州轻工业大学众创空间孵化项目(2023ZCKJ308)。

摘　　要：以马来酸酐接枝乙烯-辛烯共聚物(POE-g-MAH)和三元乙丙橡胶(EPDM)为增韧剂,采用开炼混炼法制备回收PP/玻璃纤维/POE-g-MAH和回收PP/玻璃纤维/EPDM复合材料。研究POE-g-MAH和EPDM含量对复合材料的力学性能、熔融与结晶行为、流变性能与结构的影响。结果表明:当POE-g-MAH和EPDM含量分别为30%时,复合材料的冲击强度分别提高290%和433%。POE-g-MAH对回收PP的结晶起一定的阻碍作用,降低回收PP结晶能力;而EPDM对回收PP结晶过程影响较小。POE-g-MAH与基体及玻璃纤维间形成良好的界面作用,从而提升复合材料的韧性。EPDM通过发生受力形变而提高复合材料的冲击韧性,同时保持较好的拉伸强度和拉伸模量。Using maleic anhydride grafted polyolefin elastomer(POE-g-MAH)and ethylene propylene diene monomer(EPDM)as toughening agents,recycled PP/glass fiber/POE-g-MAH and recycled PP/glass fiber/EPDM composites were prepared by open mixing method.The effect of POE-g-MAH and EPDM content on the mechanical properties,melting and crystallization behavior,rheological properties and structure of the composites were studied.The results show that when the content of POE-g-MAH and EPDM is 30%,the impact strength of composites are increased by 290%and 433%,respectively.POE-g-MAH has a certain degree of hindrance to the crystallization of recycled PP and reduces the crystallization ability of recycled PP.EPDM has little effect on the crystallization process of recycled PP.POE-g-MAH forms a good interfacial interaction with matrix and glass fiber,improving the toughness of composite.EPDM improves the impact toughness of composite by force deformation,while maintaining good tensile strength and tensile modulus.

关 键 词：回收聚丙烯 玻璃纤维 增韧 马来酸酐接枝乙烯-辛烯共聚物 三元乙丙橡胶 

分 类 号：TB332[一般工业技术—材料科学与工程]