稀土改性丙纶的结构与性能  

Structure and properties of rare earth-modified PP fiber

作　　者：冯愈[1] 

机构地区：[1]湖南工程学院化学化工系,湖南湘潭411104

出　　处：《合成纤维工业》2010年第6期32-35,共4页China Synthetic Fiber Industry

摘　　要：以钛酸酯偶联剂进行表面修饰的氧化钐(Sm_2O_3)、苯乙烯等为原料,以过氧化二苯甲酰为引发剂,采用原位悬浮聚合制备了Sm_2O_3杂化材料(Rs-PS)。再与聚丙烯(PP)共混纺丝,制得稀土改性PP共混纤维。结果表明:经表面修饰的Sm_2O_3粒子较均匀地分散在Sm_2O_3-PS杂化材料中,偶联剂质量分数为12%时修饰效果最好。Rs-PS/PP共混纤维的断裂强度较纯PP纤维略有降低,但仍能满足纺织后加工的要求。Using styrene and samarium oxide（Sm_2O_3） subjected to the surface modification with titanate coupling agent as raw material,Sm_2O_3 hybrid material（Rs-PS） was prepared with dibenzoyl peroxide as an initiator by in-situ suspension polymerization and was spun into rare earth-modified polypropylene（PP） blend fiber after blending with PP.The results showed that the Sm_2O_3 particle subjected to the surface modification uniformly dispersed into the Sm_2O_3-PS hybrid material and the optimal modification effect can be achieved with 12%coupling agent by mass fraction.The breaking strength of Rs-PS/PP blend fibers was slightly lower than that of pure PP fiber,but still satisfied the afterprocessing requirement.

关 键 词：聚丙烯纤维 氧化钐 稀土 共混改性 原位聚合 分散性能 

分 类 号：TQ342.62[化学工程—化纤工业]