非晶态高分子粉体玻璃化转变温度的影响因素及测试技术  

Glass Transition Temperature and Its Measurement of Amorphous Polymer Powders

作　　者：詹世平[1] 张欣华[1] 黄慧[1] 陈理[1] 陈淑花[1] 

机构地区：[1]大连大学环境与化学工程学院,辽宁大连116622

出　　处：《中国材料科技与设备》2006年第3期27-29,26,共4页Chinese Materials Science Technology & Equipment

基　　金：国家自然科学基金资助项目（20376008）

摘　　要：非晶态高分子粉体的玻璃化转变温度，是分析其结块原因、采取预防结块措施的重要依据。本文分析了影响非晶态高分子粉体玻璃化转变温度的主要因素；介绍了常用玻璃化温度测试技术；建立了用膨胀法测试非晶态粉体玻璃化转变温度的装置与方法，并讨论了其有效性与准确性。The glass transition temperature of amorphous polymer powders is a base to analyze the cause of cake formation and take the measurements of anti - caking. In this paper, the main factors effccting on the glass transition temperature of amorphous polymer powders are analyzed. The measurement techniques of the glass transition temperature are discussed. A novel device and its operation procedures to measure the glass transition temperature of amorphous polymer powders by means of dilatometer are provided and its reliability and accuracy are discussed.

关 键 词：非晶态高分子粉体 玻璃化转变温度 热膨胀法 

分 类 号：TQ153.2[化学工程—电化学工业] TS205.7[轻工技术与工程—食品科学]