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发明公开
CN103772912A 低温长效热熔预浸料用环氧树脂膜及其制备方法 无效 - 撤回

低温长效热熔预浸料用环氧树脂膜及其制备方法
摘要：
本发明公开了一种低温长效热熔预浸料用环氧树脂膜及其制备方法，其环氧树脂膜组分为：环氧当量为450g/mol～500g/mol、软化点为60℃～70℃的结晶态环氧树脂30～50wt％，环氧当量为180g/mol～210g/mol、室温粘度在2Pa·s～10Pa·s的液态环氧树脂20～40wt％，酸酐类助剂25～32wt％，季铵盐助剂1～2wt％。其制备方法为将结晶态环氧树脂和液态环氧树脂在80℃～90℃加热后，混配，搅拌均匀，然后在60℃～70℃下加入酸酐助剂和季铵盐助剂，再次搅拌均匀得混合环氧树脂溶液，再采用刮膜法得到低温长效热熔预浸料用环氧树脂膜。
摘要（英）：

The invention discloses an epoxy resin membrane for low temperature long-acting hot melt prepreg and preparation method thereof, and the epoxy resin membrane comprises the following components: 30-50 wt% of epoxy resin in crystalline state whose epoxide equivalent is 450-500 g/mol and softening point is 60-70 DEG C, 20-40 wt% of epoxy resin in liquid state whose epoxide equivalent is 180-210 g/mol and viscosity at room temperature is 2-10 Pa.s, 25-32 wt% of acid anhydride auxiliary agents, and 1-2 wt% of quaternary ammonium salt auxiliary agents. The preparation method comprises the following steps: heating the epoxy resin in crystalline state and epoxy resin in liquid state at 80-90 DEG C, mixing and blending, uniformly stirring, and then adding acid anhydride auxiliary agents and quaternary ammonium salt auxiliary agents at 60-70 DEG C, and stirring uniformly again for mixing the epoxy resin solution, and obtaining the epoxy resin membrane for low temperature long-acting hot melt prepreg by using a membrane scraping method.

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