水性碳纳米管接枝改性环氧树脂的合成

摘要

用酸氧化法对多壁碳纳米管（MWNTs）进行羧化处理后引入酰氯基团,利用酰氯基团与环氧酯聚合物中的羟基进行缩聚反应将MWNTs接枝到环氧树脂结构中,合成得到碳纳米管接枝改性的环氧酯聚合物。该聚合物与丙烯酸单体进行自由基聚合,在聚合物中引入羧基,利用羧基与有机胺中和成盐,制得水性碳纳米管接枝改性环氧酯聚合物。对聚合物进行红外光谱和透射电镜分析表明,碳纳米管与环氧酯聚合物进行了接枝反应。%The multi-walled carbon nanotubes（MWNTs）was treated by acid oxidation,and then processed by acyl chlorination.The carbonyl chlorides groups reaction with epoxy acrylic acid resin was applied to get carbon nanotubes grafted epoxy resin,and then free radical polymerization is conducted with acrylic acid.Consequently,the waterborne epoxy acrylate resin grafted with carbon nanotubes is obtained.The resin as main film-former is used to prepare waterborne carbon nanotubes grafted epoxy acrylic resin coating.The structure of the resin is analyzed by IR.Results show that carbon nanotubes can be grafted with epoxy resin by introducing carbonyl chlorides groups.