PTT与PET纤维热转变特征参数的提取与比较  

Extraction and Comparison of Characteristic Parameters of Thermal Transformation of PTT and PET Fibers

作　　者：程英超[1] 蒋耀兴[2] 王祥荣[1] 杭志伟[3] 

机构地区：[1]苏州大学纺织与服装工程学院,江苏苏州215123 [2]苏州大学现代丝绸国家工程实验室,江苏苏州215123 [3]苏州市纤维检验所,江苏苏州215021

出　　处：《丝绸》2014年第1期1-4,共4页Journal of Silk

基　　金：江苏省科技基础设施建设计划项目(SBM201110 049)

摘　　要：为了对PTT和PET纤维进行准确、高效的定性鉴别,用热重法(TGA)、微分热重法(DTG)、差示扫描量热法(DSC)三种热分析方法对预处理后的PTT和PET纤维进行测试与比较。对PTT和PET纤维的热转变过程进行了研究,并提取热降解起始温度、热降解终了温度、最大失重速率温度、熔融温度、玻璃化温度5个热转变特征参数。结果表明,同种纤维的热转变特征参数差异较小,而PTT和PET纤维的热转变特征参数具有明显差异;PTT纤维的熔融吸热峰处于PET纤维的无热效应区域,并且在加热过程中,两种纤维没有相互作用。To realize accurate and efficient qualitative identification of PTT and PET fibers, this paper tests and compares tWF and PET fibers after pretreatment with three thermal analysis methods, i.e. thermogravimetry （ TGA）, derivative thermogravimetry （DTG） and differential scanning calorimetry （DSC）, studies the thermal transformation process of PTr and PET fibers and extracts five characteristic parameters of thermal transformation- initial temperature and finishing temperature of thermal degradation, maximum weight loss rate temperature, melting temperature and glass transition temperature. The result shows that characteristic parameters of thermal transformation of the same fiber have small differences and those of PTI＇ and PET fibers have great differences ; melting endothermic peak of ~ fiber is in the zone without heating effect of PET fiber and both fibers do not interact in the heating process.

关 键 词：聚对苯二甲酸丙二醇酯 聚对苯二甲酸乙二醇酯 热分析 特征参数 定性鉴别 定量分析 

分 类 号：TS102.1[轻工技术与工程—纺织工程]