Oligoaniline assisted dispersion of carbon nanotubes in epoxy matrix for achieving the nanocomposites with enhanced mechanical, thermal and tribological properties

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• 作者：Bin Chen ; Jia Chen ; Jing-yu Li ; Xin Tong…
• 关键词：Carbon nanotubes ; Epoxy ; Mechanical ; Tribological ; Nanocomposites
• 刊名：Chinese Journal of Polymer Science
• 出版年：2017
• 出版时间：March 2017
• 年：2017
• 卷：35
• 期：3
• 页码：446-454
• 全文大小：
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Polymer Sciences; Industrial Chemistry/Chemical Engineering; Characterization and Evaluation of Materials; Condensed Matter Physics;
• 出版者：Chinese Chemical Society and Institute of Chemistry, CAS
• ISSN：1439-6203
• 卷排序：35

文摘

A critical challenge for initiating many applications of the carbon nanotubes (CNTs) is their dispersion in organic solvent or in polymer melt. In the present study, we described a novel strategy for fabricating carbon nanotubes (CNTs)-reinforced epoxy nanocomposite by utilizing aniline trimer (AT) as the noncovalent dispersant. Tensile testing showed that the tensile modulus of the CNTs-reinforced epoxy composites was considerably improved by adding a small amount of AT functionalized CNTs. Additionally, the as-prepared CNTs-epoxy nanocomposites exhibited superior tribological properties with much lower frictional coefficients and wear rates compared to those of neat epoxy resin. The well dispersed AT-functionalized CNTs in epoxy matrix played an important role in enhancing the mechanical properties, as well as acting as a solid lubricant for improving the tribological performance of epoxy/CNTs nanocomposite.