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发明公开
CN101037528A 耐热双马/环氧树脂及其制备方法 无效 - 撤回

耐热双马/环氧树脂及其制备方法
摘要：
本发明公开了一种耐热双马/环氧树脂及其制备方法，制备方法，包括如下，(1)将扩链剂加入双马来酰亚胺，130℃～180℃，反应15min～150min，然后加入溶剂，获得双马来酰亚胺预聚体；(2)将步骤(1)的扩链双马来酰亚胺在120～180℃下与环氧树脂共混，得到双马/环氧树脂；将步骤(2)的双马/环氧树脂于130℃～280℃下固化2h～8h，即得到耐热型的双马/环氧树脂固化物。本发明的方法制备的双马/环氧树脂，提高了树脂的内聚强度、耐热性能，又因分子链的延长，降低了残余固化应力，使操作简单，成本较低，便于工业化生产。
摘要（英）：

The invention discloses a heat-resistant bimaleimide/epoxy resin and preparing method thereof, which includes steps: (1) adding chain expansion agent to bimaleimide, under temperature of 130-180 DEG C, reacting for 15-150 min, adding solvent and obtaining bimaleimide prepolymer; (2) mixing the bimaleimide prepolymer prepared by step (1) and epoxy resin under temperature of 120-180 DEG C, and obtaining bimaleimide/epoxy resin; (3) curing the bimaleimide/epoxy resin prepared by step (2) under temperature of 130-280 DEG C for 2-8 h, and obtaining the heat-resistant bimaleimide/epoxy resin. Advantages of the prepared bimaleimide/epoxy resin are: cohesive strength and heat endurance of the resin is enhanced, residual curing stress is reduced due to prolonged molecular chain, operation is simple, cost is low, and industrial production is convenient.

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