粗旦高滑爽硅整理PET中空短纤维的生产工艺优化  

Optimization of production process of coarse-denier high- smoothness silicon-finished PET hollow staple fiber

作　　者：姚翔 王伟 薛斌 吴亮 李世君 张徐军 YAO Xiang;WANG Wei;XUE Bin;WU Liang;LI Shijun;ZHANG Xujun(SINOPEC Yizheng Chemical Fiber Co.,Ltd.,Yizheng 211900;Jiangsu Key Laboratory of High Performance Fiber,Yizheng 211900)

机构地区：[1]中国石化仪征化纤有限责任公司,江苏仪征211900 [2]江苏省高性能纤维重点实验室,江苏仪征211900

出　　处：《合成纤维工业》2023年第3期74-78,共5页China Synthetic Fiber Industry

摘　　要：以特性黏数(0.682±0.010)dL/g聚对苯二甲酸乙二醇酯(PET)熔体为原料,采用双组分氨基型有机硅整理剂生产14.44 dtex硅整理PET中空短纤维,对环吹风温度、有机硅整理剂组分A/B质量比、松弛定型温度、松弛定型时间等工艺条件进行优化,对纤维的膨松性能、压缩回弹性能、滑爽性能及充枕性能进行表征。结果表明:优化后的较佳工艺为环吹风温度20℃、有机硅整理剂A/B质量比80/20、松弛定型温度180℃、松弛定型时间9 min;较佳工艺条件下生产的硅整理PET中空短纤维膨松性能、压缩回弹性能、滑爽性能及充枕性能均较好,纤维轻负载下膨松度为148 cm~3/g,重负载下膨松度为49 cm~3/g,压缩回弹率为72%,滑爽性为4.0级,纤维填充的抱枕初始高度22.5 cm、压缩回弹后高度17.0 cm。A 14.44 dtex silicon-finished polyethylene terephthalate(PET)hollow staple fiber was produced using PET melt with an intrinsic viscosity of(0.682±0.010) dL/g as raw material in presence of a bicomponent amino organic silicon finishing agent.The process conditions such as circular air blow temperature,component A/B mass ratio of organic silicon finishing agent,relaxation setting temperature and time were optimized.And the fiber′s bulkiness,compression resilience,smoothness and pillow filling performance were characterized.The results showed that the obtained silicon-finished PET hollow staple fiber had fairly good bulkiness,compression resilience,smoothness and pillow filling performance,namely a bulk density of 148 cm^(3)/g under light load and 49 cm^(3)/g under heavy load,compression resilience ratio 72%,smoothness grade 4.0 and pillow filling initial height 22.5 cm and compression rebound height 17.0 cm when the process conditions were optimized as followed:circular air blow temperature 20 ℃,organic silicon finishing agent A/B mass ratio 80/20,relaxation setting temperature 180 ℃ and time 9 min.

关 键 词：聚对苯二甲酸乙二酯纤维 中空短纤维 有机硅整理剂 生产工艺 膨松性能 滑爽性能 

分 类 号：TQ342.21[化学工程—化纤工业]