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.
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)
出处
《塑料科技》
CAS
北大核心
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)。
