Interface adjustment of aerospace-grade T800 carbon fiber composite material

被引：0
|
作者：
Li T. [1 ]
Wang S. [1 ]
Wu Q. [2 ]
Gu Y. [3 ]
Li Q. [1 ]
Li M. [1 ]
机构：
[1] School of Materials Science and Engineering, Beihang University, Beijing
[2] School of Materials Science and Engineering, Shaanxi University of Science & Technology, Xi’an
[3] Research Institute for Frontier Science, Beihang University, Beijing
来源：
Beijing Hangkong Hangtian Daxue Xuebao/Journal of Beijing University of Aeronautics and Astronautics | 2023年 / 49卷 / 08期
关键词：
carbon fiber; chemical reaction; composite material; interface adjustment; sizing agent;
D O I：
10.13700/j.bh.1001-5965.2021.0619
中图分类号：
学科分类号：
摘要：
The effect of the sizing agent on the surface modification of high-performance carbon fiber (CF) and the modulation effect on the interface performance of its composite is very important. In this paper, the aerospace-grade T800 carbon fibers prepared by the wet method are used, and the changes in the surface microstructure, chemical composition, and chemical reaction characteristics of the fiber before and after sizing are analyzed, and the macro and micro interface properties of the composites are characterized. In addition, the reactivity of the sizing agent and its chemical reaction behavior with epoxy resin (EP) and bismaleimide resin (BMI) were examined using X-ray photoelectron spectroscopy (XPS), differential scanning calorimetry (DSC), Fourier transform infrared spectroscopy (FTIR), and other characterization techniques. The results show that the sizing agent reacts chemically with the groups on the fiber surface under the curing temperature of the resin so that the extraction amount of the sizing agent and the content of active carbon atoms on the fiber surface is reduced. The sizing agent has good chemical reaction characteristics with EP and BMI. The surface of CF sizing agent is rendered inactive after the high-temperature treatment, which also results in a little change in the interface shear strength between CF and EP but a 13% reduction between CF and BMI. In conclusion, the epoxy sizing agent with chemical activity can significantly improve the surface properties of carbon fiber, and then affect the interface properties of composites, in which the reactivity between the sizing agent and resin also affects the interface performance. © 2023 Beijing University of Aeronautics and Astronautics (BUAA). All rights reserved.
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页码：2011 / 2020
页数：9
相关论文
共 35 条
  • [1] CONNELL M E, CROSS W M, SNYDER T G, Et al., Direct monitoring of silane/epoxy interphase chemistry, Composites Part A Applied Science and Manufacturing, 29, 5, pp. 495-502, (1998)
  • [2] GAO A J., Evolution mechanism of composition, structure and mechanical properties of carbon fiber during high temperature heat treatment, (2012)
  • [3] SHARMA M, GAO S L, MADER E, Et al., Carbon fiber surfaces and composite interphases, Composites Science and Technology, 102, 6, pp. 35-50, (2014)
  • [4] PARK S J, KIM B J., Roles of acidic functional groups of carbon fiber surfaces in enhancing interfacial adhesion behavior, Materials Science and Engineering:A, 408, 1-2, pp. 269-273, (2005)
  • [5] KING T R, ADAMS D F, BUTTRY D A., Anodic oxidation of pitch-precursor carbon fibers in ammonium sulfate solutions: Batch screening treatment results, Composites Science and Technology, 44, 4, pp. 351-359, (1992)
  • [6] VARELIDIS P C, MCCULLOUGH R L, PAPASPYRIDES C D., The effect on the mechanical properties of carbon/epoxy composites of polyamide coatings on the fibers, Composites Science and Technology, 59, 12, pp. 1813-1823, (1999)
  • [7] GU Y Z, LI M, WANG J, Et al., Characterization of the interphase in carbon fiber/polymer composites using a nanoscale dynamic mechanical imaging technique, Carbon, 48, 11, pp. 3229-3235, (2010)
  • [8] DAI Z S, SHI F H, ZHANG B Y, Et al., Effect of sizing on carbon fiber surface properties and fibers/epoxy interfacial adhesion, Applied Surface Science, 257, 15, pp. 6980-6985, (2011)
  • [9] BOWMAN S, JIANG Q R, MEMON H, Et al., Effects of styrene-acrylic sizing on the mechanical properties of carbon fiber thermoplastic towpregs and their composites, Molecules, 23, 3, (2018)
  • [10] LIU J Y, GE H Y, CHEN J A, Et al., The preparation of emulsion type sizing agent for carbon fiber and the properties of carbon fiber/vinyl ester resin composites, Journal of Applied Polymer Science, 124, 1, pp. 864-872, (2012)
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