β晶型成核剂改性聚丙烯纤维研究  

Study on polypropylene fiber modified by β crystal form nucleator

作　　者：窦强[1] 王斌[2] 

机构地区：[1]南京工业大学材料科学与工程学院高分子系,江苏南京210009 [2]中国石油天然气新疆独山子石化公司研究院,新疆独山子833600

出　　处：《合成纤维工业》2002年第4期6-8,共3页China Synthetic Fiber Industry

摘　　要：研究了含 0 .2 5 %β晶型成核剂 (酰胺化合物 )的聚丙烯 Z3 0 S及其纤维的力学性能、晶型结构和微观形态。通过纺丝 -拉伸实验和力学性能测试、广角 X射线衍射分析、SEM观察 ,发现成核改性后生成了β晶型聚丙烯 (K值约为 75 .3 % ) ,抗冲性能大幅度提高。β晶型聚丙烯在纺丝卷绕过程中发生了β晶型→α晶型转变 ,纤维中产生约 10 %微孔隙 ,改性纤维的力学性能有所降低。The mechanical properties, crystal structure and morphology of Z30S PP and its fiber modified by 0.25% β crystal form nucleator (amide compound) were studied by spin\|drawing experiments, mechanical property determination, WAXD and SEM. β crystal form PP (K value of about 75.3%) formed after nucleation, and the impact strength was improved significantly. And the β crystal form was transformed into α crystal form during the stage of spinning and winding, then the micropores formed in fibers with void content in order of 10%, with loss somewhat of the mechanical properties of modified fibers.

关 键 词：Β晶型 成核剂 改性 聚丙烯纤维 研究 力学性能 

分 类 号：TQ342.62[化学工程—化纤工业]