PTT/PA6拉伸丝的形态与性能的研究  

Morphology and properties of PTT/PA6 drawn yarn

作　　者：郭静[1] 相恒学[1] 王倩倩[1] 郑楠[1] 

机构地区：[1]大连工业大学辽宁省新材料与材料改性重点实验室,辽宁大连116034

出　　处：《合成纤维工业》2011年第2期15-17,共3页China Synthetic Fiber Industry

基　　金：辽宁省教育厅项目(LS2010010)

摘　　要：考察了聚对苯二甲酸丙二醇酯/聚酰胺6(PTT/PA6)拉伸丝的形态,测试了其线密度、断裂强度、回潮率、热收缩率及卷曲性能,并与聚对苯二甲酸乙二醇酯/聚酰胺6(PET/PA6)拉伸丝进行了对比。结果表明:PTT/PA6拉伸丝横截面为橘瓣型,裂离后为三角形。PTT/PA6拉伸丝的断裂强度、断裂功和卷曲收缩率随纺丝速度的增加而减小,随PA6含量增加而增大;PTT/PA6拉伸丝的热收缩率小于PET/PA6拉伸丝,随纺丝速度的增加而增加,随PA6含量增大而减小;PTT/PA6拉伸丝的卷缩性能优于PET/PA6拉伸丝,回潮率约0.9%,大于PTT纤维。The morphology of polytrimethylene terepthalate/polyamide 6 （PTT/PA6） drawn yarn was investigated. The linear density, breaking strength, moisture regain, heat shrinkage and crimping performance of PTT/PA6 drawn yarn were measured and compared with those of polyethylene terephthalate/potyamide 6 （PET/PA6） drawn yarn. The results showed that the cross section shape of PTF/PA6 drawn yarn was transformed from orange petal into triangle after splitting. The breaking strength, break work and crimp shrinkage of PTT/PA6 drawn yarn were decreased with the increase of spinning speed and were increased with the increase of PA6 content. The thermal shrinkage of PTT/PA6 drawn yarn was lower than that of PET/PA6 drawn yarn, which was increased with the increase of spinning speed and was decreased with the increase of PA6 content. PTT/PA6 drawn yarn was superior to PET/PA6 drawn yarn in the crimping performance and had the moisture regain about 0.9%, higher than PTr fiber.

关 键 词：聚对苯二甲酸丙二醇酯纤维 聚己内酰胺纤维 复合纤维 超细纤维 结构 性能 

分 类 号：TQ342.29[化学工程—化纤工业]