周仕龙,张洪文,周健,杨菁菁,朱圣清

• 1:江苏省高性能材料绿色成形技术与装备重点实验室
• 2:江苏理工学院材料工程学院
• 3:常州大学材料科学与工程学院

摘要(Abstract)：

为改善二氧化硅(SiO_2)在聚苯乙烯(PS)复合材料中的分散性和获得良好的界面特征,以苯乙烯(St)、甲基丙烯酸丁酯(BMA)和3-甲氧基丙烯酰氧基丙基三甲氧基硅烷(KH-570)为单体,通过原子转移自由基聚合(ATRP)方法合成接枝大分子偶联剂。通过红外光谱(FT-IR)、紫外光谱(UV)、核磁共振(~1H-NMR)、凝胶渗透色谱(GPC)、热失重(TGA)对接枝大分子偶联剂进行表征,并对比研究不同分子量的偶联剂对PS/SiO_2复合材料的性能影响。实验结果表明:大分子偶联剂改性后PS/SiO_2复合材料的界面相容性得到显著改善,冲击强度达到3.92 k J×m~(-2),比未经偶联剂处理过的复合材料提高了198.25%。

关键词(KeyWords)： 接枝大分子偶联剂;聚苯乙烯;二氧化硅;复合材料;相容性;冲击强度

Abstract:

Keywords:

基金项目(Foundation): 江苏省产学研联合创新项目(BY2016030-27);; 江苏省属高校自然科学研究面上项目(14KJB430013)

作者(Author): 周仕龙,张洪文,周健,杨菁菁,朱圣清

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