共混纺丝制聚苯硫醚超细纤维及其形态结构研究  

Preparation and morphology of polyphenylene sulfide ultrafine fiber by blend spinning

作　　者：万艳霞[1] 朱志国[1] 王锐[1] 马萌[1] 董振峰[1] 张秀芹[1] 

机构地区：[1]北京服装学院材料科学与工程学院,北京100029

出　　处：《合成纤维工业》2015年第3期34-37,共4页China Synthetic Fiber Industry

基　　金：北京市科技成果转化-提升计划资助项目(KJCG02140203)

摘　　要：以聚苯硫醚（PPS）和聚丙烯（PP）为原料,采用熔融共混纺丝法制备PPS/PP共混海岛纤维,经对二甲苯溶除剥离基体相PP,制得PPS超细纤维;研究了共混纺丝温度、共混比例、拉伸、溶解剥离对PPS超细纤维形态结构的影响.结果表明：PPS/PP最佳共混纺丝温度为290 ～300℃;随着PPS/PP质量比增大,PPS超细纤维直径逐渐变大,PPS/PP质量比从30/70增至60/40时,PPS超细纤维平均直径从228 nm增至408nm;当PPS/PP质量比大于60/40时,开始出现相转变现象;提高拉伸倍数有利于PPS超细纤维的细化,PPS/PP质量比为40/60时,3倍拉伸得到PPS超细纤维的直径分布范围为158 ～488 nm,平均直径为312 nm,大于3倍拉伸时,易出现毛丝断丝现象;当对二甲苯体积与共混纤维质量比为500：1时,PPS超细纤维的最佳剥离温度为120℃、剥离时间2h.A polyphenylene sulfide/polypropylene （PPS/PP） islands-in-sea fiber was prepared by using PPS and PP as rawmaterial via melt blend spinning and was produced into PPS ultrafine fiber by peeling PP matrix phase in presence ofp -xylene.The effects of the blend spinning temperature, blend ratio, drawing process and solution peeling on the morphology of PPS ultra-fine fiber were studied. The results showed that the blend spinning temperature for PPS/PP melt was optimized as 290,300 ℃ ;the diameter of PPS ultrafine fiber was gradually increased with the increase of PPS/PP mass ratio; the average diameter of PPSultrafine fiber was increased from 228 nm to 408 nm when the PPS/PP mass ratio was increased from 30/70 to 60/40, and thephase transition phenomenon occurred at the PPS/PP mass ratio above 60/40; the thinning of PPS ultrafine fiber was beneficialfrom increasing the draw ratio; the PPS ultrafine fiber had the diameter distribution in the range of 158 -488 nm and the averagediameter of 312 nm when the PPS/PP mass ratio was 40/60 and the draw ratio was 3; the fiber was prone to break at a draw ratioabove 3; the peeling temperature and time were optimized as 120 ℃ and 2 h, respectively, for PPS ultrafine fiber when the ratioofp -xylene volume and blend fiber mass was 500 ： 1.

关 键 词：聚苯硫醚纤维 聚丙烯 共混纺丝 超细纤维 形态 对二甲苯 剥离 

分 类 号：TQ340.64[化学工程—化纤工业]