热分析法是一类自动、连续跟踪试样在程序控制温度下其物化参数随温度或时间的变化过程的技术,现已获得广泛应用。20世纪60年代,由于空间飞行技术的发展,人们迫切需要耐高温材料,因而促使了合成耐高温聚合物的兴起。与此同时,热分析作为揭示材料在高温下的变化规律、探索热稳定性与结构的关系、快速评定材料的耐热性等的有力工具,也得到迅速发展。在我国也是这样,差 Thermal analysis method is a kind of automatic and continuous tracking of the specimen in the process of temperature control of its physicochemical parameters with temperature or time of the process, has been widely used. In the 1960s, due to the development of space flight technology, people were in desperate need of high-temperature materials, which led to the rise of synthetic high-temperature polymers. In the meantime, thermal analysis has also been rapidly developed as a powerful tool for revealing the variation of materials at high temperatures, exploring the relationship between thermal stability and structure, and rapidly assessing the heat resistance of materials. The same is true in our country, poor