剪切作用下POE-g-MAH和PP-g-MAH对PA1010/PP共混物的增容作用

采用熔融共混的方法制备了聚酰胺1010/聚丙烯（PA1010/PP）共混物，通过扫描电镜、力学性能和差示扫描量热等方法研究了剪切作用下马来酸酐接枝乙烯-辛烯共聚物（POE-g-MAH）和马来酸酐接枝聚丙烯（PP-g-MAH）对PA1010/PP共混物的增容作用。结果表明，同样条件下，PP-g-MAH增容体系的相区尺寸较小，相界面更模糊，PP相的结晶温度和结晶度明显提高，共混物的拉伸强度和冲击强度均高于非增容体系。而POE-g-MAH增容体系的相区尺寸相对较大，PP相的结晶温度和结晶度明显降低，共混物只有冲击强度明显高于非增容体系，拉伸强度略低于非增容体系。

Comparatibilization Effect of POE-g-MAH and PP-g-MAH on PA1010/PP Blends under Shearing Force

Various polyamide/polypropylene (PA1010/PP) blends were prepared via melt blending using maleic anhydride-grafted ethylene-octene copolymer (POE-g-MAH) and maleic anhydride grafted polypropylene (PP-g-MAH) as compatibilizers. The compatibilizing effect of POE-g-MAH and PP-g-MAH on PA1010/PP blends obtained via dynamic packing injection molding was investigated by means of scaning electron microscopy, mechanical testing, and differential scanning calorimetry. The tensile strength, tensile modulus, and notched impact strength were generally increased by the introduction of POE-g-MAH and PP-g-MAH. Compared with POE-g-MAH, the PP-g-MAH based blends had smaller domain size, more smeared interface, elevated crystallization temperature, and larger crystallinity. However, POE-g-MAH based blends had much higher notched impact strength.