摘要
Abstract
Glass transition temperature(Tg),as an inherent property of materials,is theoretically independent of the testing method.However,in practice,significant discrepancies often arise between results obtained using dif-ferent methods and instruments.This study focused on epoxy resins that can be fully cured,using differential scan-ning calorimetry(DSC)and dynamic mechanical analysis(DMA)to measure Tg respectively.By comparing the re-sults from these two techniques,the research identifies the causes of discrepancies in Tg values,such as differences in testing methods,instrument types,heating rates,and other factors.The study also explores new approaches to improving the consistency,reliability,and comparability of thermal performance(Tg)characterization across differ-ent materials.关键词
玻璃化转变温度/热流型DSC测试/功率补偿型DSC测试/动态机械分析测试Key words
glass transition temperature/heat flow DSC test/power compensation DSC test/dynamic mechani-cal analysis test分类
通用工业技术
