热处理对一步法POY-FDY涤纶异收缩混纤丝结构、性能的影响.docVIP

热处理对一步法POY-FDY涤纶异收缩混纤丝结构、性能的影响 第37卷第3期 2011年6月 东华大学学报(自然科学版) JOURNALOFDONGHUAUNIVERSITY(NATURALSCIENCE) Vo1.37,NO.3 Jun.2011 文章编号:1671—0444(2011)03—0267—05 热处理对一步法POY/FDY涤纶异收缩 混纤丝结构,性能的影响 高思远h,黄莉茜h,王学利k,谢倩h,俞建勇¨ (1.东华大学;a.纺织学院;b.纺织面料技术教育部重点实验室;C.现代纺织研究 2.徐州斯尔克差别化纤维科技有限公司,江苏徐州221400) ,到,德明 院,上海201620; 摘要:分别对一步法POY(预取向丝)/FDY(全拉伸丝)涤纶混纤丝进行蒸纱定形热处理和松弛起 绉热处理,测试分析混纤丝在不同热处理条件下的热收缩率和拉伸性能,观察其热收缩形态.结果 表明:蒸纱定形热处理使混纤丝的热收缩率从56.9%急剧下降到8.3,同时混纤丝异收缩结构也 发生明显变化,但提高了混纤丝拉伸性能;在松弛起绉热处理中,混纤丝的热收缩率随处理温度升 高而增加,纱体从密实,带弱卷曲结构向蓬松卷曲结构转变,混纤丝强度略有下降,断裂伸长率和初 始模量略有提高. 关键词:POY(预取向丝)/FDY(全拉伸丝)混纤丝;热处理;热收缩率;拉伸性能 中图分类号:TQ342.21文献标志码:A TheInfluencesofHeatTreatmentontheShrinkageandTensileProperty ofOne—StepProcessPOY/FDYPolyesterCombinedYarn GAOSi.yuan’,HUANGLi.qian’,WANGXue—li, XIEQian’,yJian-yong’k.SUNDe-ruing. (a.CollegeofTextiles;b.KeyLaboratoryofTextileScienceamp;Technology,MinistryofEducation; c.ModernTextileInstitute,1.DonghuaUniversity,Shanghai201620,China; 2.XuzhouSilkDifferentialFibersScientificandTechnologicalCo.Ltd.,XuzhouJiangsu221400,China) Abstract:Toinvestigatetheinfluencesontheone—stepprocessPOY(pre—orientedyarn)/FDY(fullydraw yarn)combinedyarnbysteamsettingprocessandrelaxationheattreatmentrespectively,theheat shrinkagerateandtensilepropertiesaswellastheshrinkingstructureofthecombinedyarnwerestudied. Afterthesteamsettingprocess,itwasfoundthattheheatshrinkagerateofPOY/FDYcombinedyarn decreasedsharplyfrom56.9%to8.3%,theshrinkagestructurechangedsignificantly,andtensile propertieswereimprovedatthesametime.Intheprocessofrelaxationheattreatment,theshrinkage rateoftheyarnincreasedwiththetemperatureoftreatment,andthecompact,weakcrimpyarn structurechangedintobulkyandcrimpstructure;whilethetensilepropertiesdidnotchange significantly. Keywords:POY(pre-orientedyarn)/FDY(fullydrawyarn)combinedyarn;heattreatment;heat shrinkagerate;tensileproperty 收稿日期:2010-11-05 基金项目:中央高校基本科研业务费专项资金资助项目(2009D-07);江苏省科技成果转化专项资金资助项目(BA2009046) 作者简介:高思远(1985一),男,内蒙古通辽人,硕士,研究方向为化学纤维及其面料性能.E—mail:gaosiyuan@mail.dhu.edu.cn 黄莉茜(联系