动态力学分析在高分子材料中的应用  

Application of Dynamic Mechanical Analysis in Polymer Materials

作　　者：何超[1] 程飞[2] 周密[2] 杨昌跃[1] HE Chao;CHENG Fei;ZHOU Mi;YANG Changyue(College of Polymer Science and Engineering,Sichuan University,Chengdu 610065,China;College of Biomass Science and Engineering,Sichuan University,Chengdu 610065,China)

机构地区：[1]四川大学高分子科学与工程学院,成都610065 [2]四川大学轻工科学与工程学院,成都610065

出　　处：《实验科学与技术》2020年第4期27-32,共6页Experiment Science and Technology

基　　金：国家自然科学基金(51603134);四川大学2017年实验技术立项(20170099)。

摘　　要：动态力学分析功能繁多,在高分子领域中,一般都用其来测试聚合物的玻璃化转变温度或储能模量(损耗模量),还有许多功能有待开发。该文通过介绍动态力学分析的测试原理,并对动态力学分析测试在聚合物玻璃化转变、力学性能测试、乙烯基酯的次级转变测量、共混材料相容性表征、薄膜粘接涂层的作用效果、树脂-固化剂体系的等温固化反应动力学以及形状记忆材料的研究方面的应用进行归纳总结,力求最大限度地发挥仪器本身的功能价值,从而为高分子材料的开发作出相应的贡献。Dynamic mechanical analysis(DMA),provided with a variety of functions,is commonly used for measurement of the glass transition temperature or storage modulus(loss modulus)of polymer.However,there are numerous functions yet to be explored.This paper gives a brief introduction to the testing principle of DMA and makes a summary of the application of DMA in glass transition of polymer,mechanical property testing,measurement of secondary transition of vinyl ester,the compatibility of polymer blends,the effect of adhesive coating,the isothermal curing reaction kinetics of resin-curing agent system and investigation of shape memory materials.This paper aims to maximize the functional value of the instrument,thereby making corresponding contributions to the development of polymer materials.

关 键 词：动态力学分析 高分子材料 形状记忆材料 玻璃化转变温度 力学性能 

分 类 号：O657.99[理学—分析化学]