PPO/PA6/EPDM/滑石粉共混体系的加工-性能-形态之间关系研究  

Study on the Relationship between Processing, Properties and Phase Morphology of PPO/PA6/EPDM/Talc Alloy

作　　者：武德珍[1] 张倩[1] 姜立忠[1] 金日光[1] 

机构地区：[1]北京化工大学材料科学与工程学院北京市新型高分子材料制备与加工重点实验室,北京100029

出　　处：《中国塑料》2005年第7期32-35,共4页China Plastics

摘　　要：采用熔融共混法制备了聚苯醚(PPO)/聚酰胺6(PA6)/三元乙丙橡胶(EPDM)三元和PPO/PA6/EPDM/滑石粉四元体系的共混合金,而且在制备四元共混合金时采取先用马来酸酐接枝的三元乙丙橡胶(EPDM-g-MAH)与滑石粉制成母粒,然后再将母粒与PPO、PA6共混的方法,研究了三元和四元共混体系的力学性能、流变性能和相态结构。结果表明:将制备的母粒与PPO和PA6进行共混,当母粒含量在一定范围内时可以实现弹性体和无机刚性粒子对体系的协同增韧作用,且母粒含量在15％时达到最佳,其增韧效果优于相同用量的纯EPDM-g-MAH弹性体增韧体系,同时母粒的加入可以改善共混体系的流动性,对拉伸强度的影响也比较小。PPO/PA6/EPDM alloy and PPO/PA6/EPDM/talc power alloy were prepared by melt-blending. Mechanical properties, rheological behaviors and phase structure of the blends were studied. The results showed that the masterbatch, made of super-fine talc powder and EPDM-g-MAH, was blended at a moderate content with PPO and PA6, the blends possessed the synergistic toughening effect, which was better than that of pure EPDM-g-MAH toughened blends and the best at 15 % content of masterbatch.The addition of masterbatch also improved the fluidity of the blends and resulted in little decrease of the tensile strength.

关 键 词：聚苯醚 聚苯醚/聚酰胺6合金 增韧 增强 

分 类 号：TQ320.7[化学工程—合成树脂塑料工业]