摘要
制备了三种不同黏度的马来酸酐接枝三元乙丙橡胶(EPDM-g-MAH),将其用于增韧聚酰胺(PA)6。通过傅里叶变换红外光谱、扫描电子显微镜、差示扫描量热法、力学性能测试等表征了三元乙丙橡胶(EPDM)对增韧PA 6体系结构与性能的影响。结果表明:EPDM-g-MAH改善了PA 6与EPDM的相容性,用黏度适中的EPDM得到的EPDM-g-MAH与PA 6(质量比为85∶15)共混,分散相尺寸较小且分散均匀,共混体系的力学性能得到提高,特别是Izod缺口冲击强度几乎为PA 6的10倍。
The authors prepared three kinds of maleic anhydride(MAH) grafted ethylene-propylene-diene monomer(EPDM) with different viscosity(EPDM-g-MAH) and used them for toughening polyamide(PA) 6.The influences of the EPDM on the structure and properties of the toughened PA 6 system were characterized by Fourier transform infrared spectroscopy(FTIR),scanning electron microscopy(SEM),differential scanning calorimetry(DSC) and mechanical properties tests.The results show that EPDM-g-MAH improves compatibility between EPDM and PA 6 matrix.The blend of EPDM-g-MAH containing EPDM with suitable viscosity and PA 6 has dispersed phase with smaller size and even distribution when the mass ratio of the former to the latter is 15 ∶ 85.The blend possesses the improved mechanical properties;especially its notched Izod impact strength is almost 9 times higher than that of pure PA 6.
出处
《合成树脂及塑料》
CAS
北大核心
2012年第4期1-4,29,共5页
China Synthetic Resin and Plastics
关键词
聚酰胺6
马来酸酐接枝三元乙丙橡胶
形态
增韧
力学性能
polyamide 6
maleic anhydride grafted ethylene-propylene-diene monomer
morphology
toughening
mechanical property