采用微波辐射法,以多巴胺(Dop)为改性剂,多壁碳纳米(MWCNTs)管与多巴胺间形成共价键合的功能化.通过FT-IR、XRD、TGA、SEM和TEM对多巴胺功能化的MWCNT-Dop进行表征.MWCNTs得到高度功能化,可作为一种MWC-NTs酚基化的有效方法.采用溶液共混工艺制备出MWCNT-Dop增强的聚(酰胺-酰亚胺)基复合材料.通过高能超声,MWCNT-Dop(0～ 15 wt％)分散于聚合物基体中.TGA结果表明,该复合材料具有良好的热稳定性.拉伸力学测试表明,随着MWCNT-Dop含量的增加,该复合材料的弹性模量增加.
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