拉伸条件对ECDP预取向丝结构与性能的影响  

The Effect of Drawing Conditions on the Structure and Properties of ECDP POY

作　　者：高庆文[1] 孙燕琳 林雪燕 张须臻[1] 王秀华[1] 

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]桐昆集团股份有限公司,浙江桐乡314500

出　　处：《合成纤维》2017年第11期6-9,共4页Synthetic Fiber in China

基　　金：2016年绿色制造系统集成项目--《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：采用动态热应力仪对常压沸染型阳离子染料可染聚酯预取向丝(ECDP-POY)在不同的拉伸倍数和温度下进行热处理,并用差示扫描量热仪和广角X射线衍射仪对热处理后的样品进行测试。结果表明:ECDP-POY在1.0的拉伸倍数下,热应力随着拉伸温度的升高先增加后减小,并在105℃时出现最大值;在1.6的拉伸倍数下,热应力随着拉伸温度的升高快速降低,当温度达到95℃左右后降速趋缓。随拉伸温度的提高,样品的结晶度逐渐增大;在相同拉伸温度下,经1.6倍拉伸后的样品,其结晶度明显比1.0倍拉伸的样品高。研究结果可以为ECDP拉伸变形丝工艺的选择提供一定的参考。ECDP-POY （pre-oriented yarn） was drafted to given ratio on a dynamic thermal stress apparatus at different temperature,and the crystallization behavior of those samples after heat treatment was investigat ed via differential scanning calorimeter and wide-angle X-ray diffractometer.The thermal stress of ECDP-POY increases firstly and then decreases with increasing temperature at a draft ratio of 1.0,reaching a maximum value at 105 ℃.The thermal stress of ECDP-POY decreases rapidly with increasing treat temperature at 1.6 draft ratio,and has little change after 95 ℃.The crystallinity of all samples increases gradually with increasing treat temperature.At the same treat temperature,the crystallinity of samples with 1.6 draft ratio is obviously higher than that of samples with 1.0 draft ratio.These results could contribute to optimize the preparation technology of ECDP draw textured yam.

关 键 词：热应力 热收缩 结构表征 

分 类 号：TQ342.21[化学工程—化纤工业]