The Effect on Tensile Property of Surface Treatment of MWNTs on MWNTs/PI Films

ZHANG Ming-yan; CHENG Tong-lei; GAO Sheng; WU Zi-jian

doi:10.15938/j.jhust.2017.04.016

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The Effect on Tensile Property of Surface Treatment of MWNTs on MWNTs/PI Films

更新时间：2026-08-31

- The Effect on Tensile Property of Surface Treatment of MWNTs on MWNTs/PI Films
- Vol. 22, Issue 4, Pages: 87-92(2017)
- 作者机构：
  
  1. 哈尔滨理工大学工程电介质及其应用技术教育部重点实验室,黑龙江,哈尔滨,150080
  2. 哈尔滨理工大学材料科学与工程学院,黑龙江,哈尔滨,150040
- 作者简介：
- 基金信息：
- DOI：10.15938/j.jhust.2017.04.016
  CLC： TM215
- Published：2017
- 稿件说明：
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ZHANG Ming-yan, CHENG Tong-lei, GAO Sheng, et al. The Effect on Tensile Property of Surface Treatment of MWNTs on MWNTs/PI Films[J]. 2017, 22(4): 87-92.
DOI：

ZHANG Ming-yan, CHENG Tong-lei, GAO Sheng, et al. The Effect on Tensile Property of Surface Treatment of MWNTs on MWNTs/PI Films[J]. 2017, 22(4): 87-92. DOI： 10.15938/j.jhust.2017.04.016.

摘要

探究碳纳米管( MWNTs) 的表面处理方法对 PI 薄膜拉伸性能的影响。采用超声法、混酸法和芬顿法对多壁碳纳米管进行表面处理，通用原位聚合法和热亚胺化制得 MWNTs/PI 杂化薄膜。结果表明: 超声法只能提高 MWNTs 的分散性，对 PI 薄膜拉伸强度的提升并不明显; 混酸处理切短了 MWNTs 提高了分散性，在 MWNTs 上接枝了羟基官能团，提高了两相界面的相互作用，使薄膜的拉伸强度得到有效提升; 芬顿法切短了 MWNTs 提高了分散性，但 MWNTs 的多壁状结构未破坏，在 MWNTs 上接枝了羟基和羧酸等有机基，使 MWNTs 与 PI 基体形成了强相互作用界面，显著提高了杂化薄膜的拉伸强度，提升幅值达 13. 9%。

Abstract

We discussed the effects of MWNTs surface treatments on MWNTs/PI hybrid films in tensile strength. Used by ultrasonic，mixed acid and Fenton three methods to treat MWNTs，then through in-situ polymerization and heat imidization to prepare MWNTs/PI hybrid films. The results showed that Ultrasonic treatment just improved the dispersion of MWNTs，was not obvious to the promotion of the PI film tensile strength.MWNTs were cut short and improve the dispersion after mixed acid method. The surface of MWNTs were grafted onto the hydroxyl functional groups. And improved the interaction of two phase interface，made the tensile property of the PI films to effectively improve. MWNTs were cut short and improve the dispersion after Fenton treatment，but the wall structure of MWNTs was not damaged. The surface of MWNTs was grafted onto the hydroxyl and carboxylic acid. MWNTs with PI formed strong interaction interface. The tensile property of the PI films was Significantly improved，the largest extent was up to 13. 9%.

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