Effect of carboxylated multi-walled carbon nanotubes modified kenaf fiber on interfacial properties of epoxy resin composites

被引：0
|
作者：
Zhang H. [1 ]
Wang C. [1 ]
Zuo Q. [1 ]
Li M. [1 ]
Wang X. [1 ]
机构：
[1] School of Textile Science and Engineering, Tiangong University, Tianjin
来源：
Fuhe Cailiao Xuebao/Acta Materiae Compositae Sinica | 2022年 / 39卷 / 05期
关键词：
Carboxylated carbon nanotubes; Interfacial properties; Kenaf fiber; Plant fiber reinforced composites; Single fiber pull-out test;
D O I：
10.13801/j.cnki.fhclxb.20210716.002
中图分类号：
学科分类号：
摘要：
Plant fiber reinforced composites are being applied to various fields of life. The interfacial incompatibility between hydrophilic reinforcement and hydrophobic matrix limits the mechanical properties of composites. In this paper, the kenaf fiber was modified by carboxylated carbon nanotubes (c-MWCNTs) to explore the interface improvement mechanism of kenaf fiber/epoxy resin composites. Firstly, the kenaf fiber was pretreated by water and NaOH. The effects of different pretreatment methods on the grafting of c-MWCNTs by kenaf fiber were investigated by observing the changes of fiber diameter, infrared spectrum and fiber bundle fracture strength. Then the kenaf fibers were modified with 0.5wt%, 1wt% and 3wt% c-MWCNTs, respectively. Interfacial shear strength (IFSS) of kenaf fiber/epoxy composites was investigated by single fiber pull-out test. The results show that the diameter variation, the removal of non-cellulose components and the decrease of fiber bundle fracture strength of kenaf fiber after alkali treatment are the smallest and the dimensional stability of composite is higher. Through single fiber pull-out test, IFSS of the kenaf fiber/epoxy resin composite increases gradually, but the effectiveness decreases gradually. When the mass fraction of c-MWCNTs is 0.5wt%, the effectiveness is the highest, and the improvement effect reaches 45.09%. The interfacial properties of kenaf fiber/epoxy resin composites modified by c-MWCNTs are improved. Due to the existence of c-MWCNTs, the mechanical lock between fiber and resin matrix is strengthened. Copyright ©2022 Acta Materiae Compositae Sinica. All rights reserved.
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页码：2153 / 2160
页数：7
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  • [1] WANG Chunhong, LU Chao, JIA Ruiting, Et al., The mechanical and moisture absorption properties of kenaf fiber-cotton fiber blended fabric/epoxy resin composites, Journal of Composites, 37, 7, pp. 1581-1589, (2020)
  • [2] WANG Chunhong, LU Chao, Plant fiber structure and its effect on NFPR interface properties, Textile Report, 3, pp. 38-43, (2020)
  • [3] SAMIR M A, ALLOIN F, DUFRESNE A., A review of recent research into cellulosic whiskers, their properties and their application in nanocomposite field, Biomacro-molecules, 6, 2, pp. 612-626, (2005)
  • [4] LI Y, CHEN C, XU J, Et al., Improved mechanical properties of carbon nanotubes-coated flax fiber reinforced compo-sites, Journal of Materials Science, 50, 3, pp. 1117-1128, (2015)
  • [5] HETIAN Gongyi, CAO Yong, WU Yiqiang, Research progress of hemp fiber reinforced composites, Journal of Materials Research, 22, 1, pp. 10-17, (2008)
  • [6] PATEL N, JAIN P., An investigation on mechanical properties in randomly oriented short natural fiber reinforced composites, Materials Today: Proceedings, 37, 2, pp. 469-479, (2021)
  • [7] ZHAN Jianghu, WANG Yingxiao, YANG Zhihao, Et al., Study on properties of ramie fiber reinforced polylactic acid composites, Journal of Engineering Science, 43, 7, pp. 1-9, (2021)
  • [8] ZUO Qi, FEI Jianwu, WANG Chunhong, Et al., The effect of laying angle on the properties of ramie fiber composites, Shanghai Textile Technology, 47, 10, pp. 71-74, (2019)
  • [9] WANG Chunhong, ZHAO Ling, BAI Suyue, Et al., Prediction of interfacial properties of hemp fiber/UP composites by improved back propagation neural network, Journal of Composites, 32, 6, pp. 1696-1702, (2015)
  • [10] WU Xinsen, CHEN Xiangbao, SONG Huancheng, Effect of interface layer on strength of composite materials, Journal of Composite Materials, 4, 4, pp. 18-23, (1987)
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