摘要
通过毛细管流变仪测定了马来酸酐接枝聚丙烯(PP-g-MAH)在高温(230～260℃)高剪切速率(100～1500 s^(-1))下的流变性能,并在熔融纺丝机上研究了该接枝共聚物的可纺性。结果表明PP-g-MAH的剪切粘度在低剪切速率时比PP高,在高剪切速率时则低。PP-g-MAH的粘流活化能比PP的稍高,且随接枝率的增加而增大。马来酸酐接枝聚丙烯在250～260℃具有良好的可纺性。
Rheological behaviour of maleic anhydride graft polypropylene is measured at high temperature (250～260℃) and high shear rate (100～500 s^(-1)) by capillary rheometer. Its spinnability is studied on melt spinning machine. The results show that the shear viscosity of maleic anhydride graft polypropylene is higher than that of polypropylene at low shear rate, while lower at higher shear rate. The viscometric flow activation energy of maleic anhydride graft polypropylene is higher a little than polypropylene and gets higher with the increase of graft degree. Maleic anhydride graft polypropylene can be spinned well at 250～260℃.
出处
《东华大学学报（自然科学版）》
CAS
CSCD
北大核心
2004年第3期1-4,共4页
Journal of Donghua University(Natural Science)
关键词
聚丙烯
接枝改性
马来酸酐
流变性
可纺性
polypropylene, graft modification, maleic anhydride, rheological behaviour, spinnability
