测量玻璃化转变温度的几种热分析技术  

Thermal analysis techniques for measurement of glass transition temperature

作　　者：徐颖[1] 张勇 

机构地区：[1]苏州大学分析测试中心,苏州215123

出　　处：《分析仪器》2010年第3期57-60,共4页Analytical Instrumentation

摘　　要：高分子材料玻璃化转变的表征可提供丰富的信息,例如固化程度、热历史、材料的最高服役温度,共聚、共混物组分的相容性和相分离、组分的定性和定量等等,因此长期以来它都是高分子物理研究的主要内容[1-3]玻璃化转变有多种测试手段,本文讨论了热分析技术测量玻璃化转变的四类实验方法,比较了它们的特点和主要影响因素。Charactering the glass transition of polymers offers rich information, such as cure degree,thermal history, end-use temperature, phas separation in multicomponent systems, qualitative and quantitative data of components, etc. So the measurement of glass transition temperature is very important for polymer study. There are many ways that can measure the glass transition temperature. This paper describes four themal analysis techniques, compares their characteristics, and discusses the main factors affecting the measurement.

关 键 词：玻璃化转变 热分析 DSC/DTA MDSC TMA DMA DEA 

分 类 号：O657.99[理学—分析化学]