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《China Synthetic Fiber Industry》 2013-01
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Effect of polyethylene glycol on crystallization behaviors of polyoxymethylene and fiber properties

Yin Xuewu,Lan Jianwu,Chen Ke,Chen Sheng(College of Light Industry,Textile and Food Engineering,Sichuan University,Chengdu 610065)  
Polyoxymethylene(POM) was added with a certain amount of polyethylene glycol(PEG) to produce a POM/PEG fiber via melt spinning process.The isothermal crystallization behavior of the blends of POM and PEG with different relative molecular mass at different proportions was studied by optical depolarization and PLM.The mechanical properties of the blend fibers were analyzed by single fiber strength test and DSC.The results showed that the addition of PEG accelerated the crystallization of POM,elevated the crystallization temperature and depressed the crystal growth;the breaking strength of the fiber dropped first and then rose while adding PEG.As compared with that of pure POM fiber,the breaking strength of POM/PEG blend fiber was increased by 7% or so as PEG had the relative molecular mass of 2000 and the blend ratio of POM and PEG was 99/1.
【Fund】: 成都市科技攻关计划资助项目(10GGYB361GX-023)
【CateGory Index】: TQ340.1
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