| 苯并口恶嗪/环氧树脂共聚固化过程研究 |
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| 引用本文： | 李艳亮,唐邦铭,梁子青,赵艳芬,益小苏.苯并口恶嗪/环氧树脂共聚固化过程研究[J].热固性树脂,2008(2). |
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| 作者姓名： | 李艳亮 唐邦铭 梁子青 赵艳芬 益小苏 |
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| 作者单位： | 北京航空材料研究院先进复合材料国防重点实验室 北京航空材料研究院先进复合材料国防重点实验室 北京 |
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| 摘 要： | 采用FT-IR、DSC研究苯并口恶嗪与环氧树脂通过熔融搅拌混合均匀后,固化过程中2种树脂发生开环共聚合的可能性。结果表明:苯并口恶嗪与环氧树脂熔融混合后,在高温区(180℃,200℃)发生了共聚反应,苯并口恶嗪开环过程形成的中间体可以作为环氧树脂的固化剂使用。玻璃化转变温度随着共聚体系中环氧树脂含量的增加先升高,环氧树脂质量分数超过30%后降低,当苯并口恶嗪与环氧树脂的质量比为70/30时,Tg达到最高(218℃),熔融共混在一起程度上提高了共聚体的玻璃化转变温度。
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| 关 键 词： | 苯并口恶嗪 环氧树脂 共聚 固化过程 |
Study on the curing process of benzoxazine-epoxy copolymerization |
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| Abstract: | Benzoxazine and epoxy were mixed uniformly at melting temperature.FT-IR and DSC was used to investigated the possibility of their copolymerization.The mechanical properties of pure resin and copolymer were tested.The results showed that the copolymerization curing processes of two resins were carried out at high temperature(180 ℃ and 200 ℃)after melting.The intermediate of benzoxazine opening ring could be used as curing agent of epoxy resin.The glass transition temperature of copolymer increased with the increasing of epoxy at first then decreased.and Tg was up to 218 ℃ when the weight ratio of benzoxazine to epoxy resin was 70:30.Melt blending increased the Tg of copolymer in some degree. |
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| Keywords: | benzoxazine epoxy copolymerization curing process |
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