分散染料易染海岛复合聚酯纤维的热应力分析  

Thermal Stress Analysis of Sea-Island Composite PET Fiber Easily Dyeable for Disperse Dyes

作　　者：么丹阳 沈国光 袁建友 李为民 束永健 王秀华 

机构地区：[1]浙江理工大学纺织纤维材料与加工技术国家地方联合工程实验室,浙江杭州310018 [2]浙江古纤道股份有限公司,浙江绍兴312000

出　　处：《合成纤维》2017年第4期21-24,共4页Synthetic Fiber in China

基　　金：2016年《绿色多功能差别化聚酯纤维制造与应用技术集成创新》

摘　　要：以易水解聚酯(EHDPET)和新型分散染料常压可染聚酯(NEDDP)分别作为海与岛组分,通过熔融纺丝方法,制备了不同复合比的海岛复合聚酯的预取向丝(POY)。采用动态热应力仪模拟纤维加弹工艺,对EHDPET-NEDDP POY进行了不同拉伸温度、拉伸速度、拉伸倍数下的热应力测试。结果表明:随着温度从140℃提高到180℃,POY的热应力呈减小趋势;而当拉伸速度从60 m/s提高至100 m/s,或拉伸倍数从1.4增大到1.8时,POY的热应力均呈增大的趋势。Several kinds of preoriented yarn （POY） of sea-island filaments were prepared using a hydrolysis degradable polyester（EHDPET） and a new disperse atmospheric dyeable polyester（NEDDP） as sea and is- land components by melt spinning, respectively. EHDPET-NEDDP composite filaments were characterized by HDK-Draw force tester to simulate the DTY process. The effects of temperature, speed and draw ratio during test on POY thermal stress were discussed. The result showed that the thermal stress of four kinds of EHDPET-NEDDP composite filaments all declined as the draw temperature rose from 140℃ to 180 ℃. While the draw speed increased from 60 m/min to 100 m/min, or draw ratio increased from 1.4 to 1.8, thermal stress was increasing trend.

关 键 词：海岛纤维 易水解聚酯 分散染料常压可染聚酯 POY 热应力 

分 类 号：TQ342.2[化学工程—化纤工业]