采用端羧基于腈橡胶(CTBN)对酚醛树脂进行改性,研究CTBN用量对改性酚醛树脂力学性能的影响.酚醛树脂的拉伸强度、断裂伸长率随CTBN用量的增大而呈上升趋势,当CTBN用量为10%时,拉伸强度、断裂伸长率达到最大值,并利用扫描电子显微镜(SEM)、傅立叶转换红外光谱(FTIR)和热重法(TGA)对改性前后酚醛树脂的结构和热性能进行分析.结果表明,CTBN与酚醛树脂之间发生了化学反应,并且改性酚醛树脂的热性能有所下降.
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