各向异性含氟聚酰亚胺/碳纳米管复合薄膜的制备及性能研究

doi:10.19936/j.cnki.2096-8000.20230828.008

复合材料科学与工程 ›› 2023, Vol. 0 ›› Issue (8): 51-56.DOI: 10.19936/j.cnki.2096-8000.20230828.008

各向异性含氟聚酰亚胺/碳纳米管复合薄膜的制备及性能研究

李春漫¹, 李双雯^2*

1.国家管网集团科学技术研究总院分公司,廊坊 065000;
2.北华航天工业学院材料科学与工程,廊坊 065000

收稿日期:2022-06-29 出版日期:2023-08-28 发布日期:2023-10-20
通讯作者: 李双雯(1987—),女,副教授,研究方向为碳纳米复合材料,lishuangwen05@sina.com。
作者简介:李春漫(1971—),女,高级工程师,研究方向为复合材料。
基金资助:
国家自然科学基金(52003007);河北省自然科学基金(E2019409063);廊坊青年拔尖人才项目(LFBJ202004);北华航天工业学院博士科研启动项目(BKY201807)

Preparation and performance research of anisotropic fluorinated polyimide/carbon nanotubes composite films

LI Chunman¹, LI Shuangwen^2*

1. Pipe China Institute of Science and Technology, Langfang 065000, China;
2. College of Material Engineering, North China Institute of Aerospace Engineering, Langfang 065000, China

Received:2022-06-29 Online:2023-08-28 Published:2023-10-20

摘要/Abstract

摘要： 未来,轻质、柔韧,具有定向传导能力的复合材料在微电子器件、航空航天等领域会有非常重要的研究和应用价值。通过对复合材料进行微观结构设计及界面相容性调控,可以制备具有高度各向异性的复合材料。本文将表面改性的取向碳纳米管阵列与含氟聚酰亚胺进行复合,制备含氟聚酰亚胺/碳纳米管复合薄膜。由于改性碳纳米管阵列与聚合物之间的相容性提高,含氟聚酰亚胺/碳纳米管复合薄膜表现出优异的热稳定性、力学性能、透光性。在碳纳米管阵列添加量极低的情况下,复合薄膜表现出明显的各向异性,沿碳管阵列方向的拉伸强度比垂直于碳管阵列方向的拉伸强度高33.1%。

关键词: 取向碳纳米管阵列, 含氟聚酰亚胺, 各向异性, 耐温, 复合材料

Abstract: In the future, lightweight, flexible and directionally conductive composites will have very important research and application value in the fields of microelectronic devices, aerospace and so on. Composites with highly anisotropic properties can be prepared by microstructural design and interface compatibility control. The fluorinated polyimide (f-PI)/carbon nanotubes (CNTs) was prepared by compounding the surface modified aligned CNTs with f-PI. Due to the improved interfacial compatibility between surface modified CNTs and polymer matrix, f-PI/CNTs composite films exhibit excellent thermal stability, mechanical properties and high light transmission. In spite of the extremely small amounts of the CNTs in a polymer matrix, the obtained uniform f-PI/CNTs composite films are characterized by a variety of excellent anisotropic properties. As a result, the tensile strength along the longitudinal direction of the highly aligned CNTs is 33.1% higher than that in perpendicular direction.

Key words: aligned CNTs, fluorinated polyimide, anisotropy, thermostability, composites

中图分类号:

TB332

李春漫, 李双雯. 各向异性含氟聚酰亚胺/碳纳米管复合薄膜的制备及性能研究[J]. 复合材料科学与工程, 2023, 0(8): 51-56.

LI Chunman, LI Shuangwen. Preparation and performance research of anisotropic fluorinated polyimide/carbon nanotubes composite films[J]. COMPOSITES SCIENCE AND ENGINEERING, 2023, 0(8): 51-56.

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各向异性含氟聚酰亚胺/碳纳米管复合薄膜的制备及性能研究

Preparation and performance research of anisotropic fluorinated polyimide/carbon nanotubes composite films

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