PP/EHDPET共混体系相转变研究——熔体弹性的影响  

Phase inversion in PP/EHDPET blends: the influence of melt elasticity

作　　者：高曙光[1] 付中玉[1] 田慕川[1] 张大省[1] 

机构地区：[1]北京服装学院材料工程系,北京100029

出　　处：《合成纤维工业》2002年第3期5-7,共3页China Synthetic Fiber Industry

基　　金：国家自然科学基金资助 (599730 0 2 )

摘　　要：采用熔融共混纺丝的方法 ,以易水解聚酯 (EHDPET)为一组分与 PP经单螺杆共混纺丝制得试样 ,测试了共混组分的流变性能。以 SEM为研究手段 ,通过改变喷丝孔长径比及纺丝温度 ,讨论了熔体弹性对共混纤维相转变的影响规律。加大喷丝孔长径比 ,适当提高纺丝温度有利于使Easy hydrolytic degradation polyester(EHDPET) and PP were melt\|spun with a single screw. The rheological behavior of PP/EHDPET blends was determined by means of SEM. The effect of melt elasticity on phase inversion of blend fibers was discussed at different spinneret L/D ratio and spinning temperature. Higher L/D ratioes and spinning temperatures was helpful for the formation of PP disperse phase at higher composition ratioes.

关 键 词：PP/EHDPET 共混体系 相转变 研究 熔体 弹性 影响 聚丙烯 易水解聚酯 共混纺丝 相形态 流变性能 

分 类 号：TQ342.9[化学工程—化纤工业]