水介质下微波辐射对PET纤维结构与性能的影响  

Effect of microwave irradiation on structure and performance of PET fiber in water

作　　者：周萍[1] 薛宝霞[1] 孙卜昆[1] 李静亚[1] 

机构地区：[1]太原理工大学轻纺工程与美术学院,山西榆次030600

出　　处：《天津工业大学学报》2012年第5期5-8,共4页Journal of Tiangong University

基　　金：山西省自然科学基金资助项目(2012021021-6)

摘　　要：运用微波辐射法对PET纤维表面进行处理,测试了不同微波功率和不同微波时间下纤维样品的回潮率和断裂强度,并采用扫描电子显微镜(SEM)、傅里叶红外光谱(FT-IR)、差示扫描量热仪(DSC)分别对样品的形貌、分子结构、结晶度进行表征.结果表明:微波处理使得PET纤维表面被刻蚀而变得粗糙;纤维表面增加了极性基团-OH和-COOH;微波处理前后的PET纤维的结晶度从34.4%下降到30.2%.The surface of PET fiber was treated by the method of microwave irradiation.The moisture regain and the breaking strength of samples with different microwave power and microwave time were measured.The morphologies of samples were observed by Scanning Electron Microscopy（SEM）,the molecular structures were characterized by Fourier Transform Infrared Spectrometry（FT-IR）,and the crystallinity of samples were determined through Differential Scanning Calorimeter（DSC）.The results show that the surface of PET fibers is etched to be rough after microwave irradiation with the increase of active groups-OH and-COOH.In addition,the degree of crystallinity of PET fiber is decreased from 34.4% to 30.2%.

关 键 词：PET纤维 微波辐射 纤维结构 回潮率 断裂强度 

分 类 号：TS102.52[轻工技术与工程—纺织工程]