【摘要】 环氧树脂固化物具有一系列性能优势,是重要的电子材料之一,但因其极易燃烧而存在火灾隐患。采用一类扭曲非对称结构的二氮杂萘酮型二胺和二酚型无卤阻燃固化剂,与双酚A型环氧树脂(E51)和含磷环氧树脂固化,所得固化物具有优异的热学和动态力学性能,T可达157℃,热线胀系数低;与含磷树脂固化后所得g材料的阻燃性顺利通过UL94 V-0级测试。更多还原

【Abstract】 The epoxy thermosets have a series of advantages,and are one of the most important electronic materials.However,the common epoxy materials are highly flammable.In this paper,two nitrogen-containing flameretardant curing agents was synthesized by using phenolphthalein as the raw material.The bisphenol A epoxy resin E51 and the phosphorus-containing epoxy resin were cured with the diamine and diphenol halogen-free flame-retardant curing agents,which contain the phthalazinone moieties and have the twisty and unsymmetrical structural,and the cured exhibited excellent thermal and dynamic mechaincal properties,T of 157℃,and lower linear expansion coefficient.When cured g with the phosphorus-containing epoxy resin,it exhibited excellent flame retardant performance(UL 94 V-0).更多还原