The results shows that epoxy resins containing rigid rod structure or many epoxy groups have a high glass transition temperature (Tg) because of high cross-linking density.
研究结果表明:分子结构中含有刚性结构或连有较多的环氧基时,固化产物具有较高的交联密度,玻璃化转变温度较高;
The cured system of epoxy resinlead benzoylate has high heat distortion temperature, but its dielectric properties at high temperature and heat ageing life deteriorate.
环氧-羧酸盐体系虽然热变形温度和热态强度较高,但高温下介电性能差,耐热老化性能也不好。
The high temperature resistant adhesive was prepared based on liquid polybutadiene epoxy resin(ELPB) cured by pyromellitic dianhydride(PMDA) and benzoyl peroxide(BPO).
采用均苯四甲酸酐(PMDA)和过氧化二苯甲酰(BPO)双固化剂固化聚丁二烯环氧树脂(ELPB),制备了ELPB/PMDA/BPO耐高温胶粘剂。
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