Journal of Textile Research ›› 2019, Vol. 40 ›› Issue (12): 98-103.doi: 10.13475/j.fzxb.20180505806

• Dyeing and Finishing & Chemicals • Previous Articles     Next Articles

Preparation of modified aramid fiber and epoxy resin composites and stab resistance thereof

ZHUANG Qun1, ZHANG Fei1, DU Zhaofang1(), JIANG Hua2   

  1. 1. Textile Engineering and Academy of Art, Anhui Agricultural University, Hefei, Anhui 230036, China
    2. Suzhou Gao Jia Protection Technology Co., Ltd., Suzhou, Jiangsu 215000, China
  • Received:2018-05-24 Revised:2019-09-12 Online:2019-12-15 Published:2019-12-18
  • Contact: DU Zhaofang E-mail:dzf@ahau.edu.cn

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Abstract:

In order to improve the stab resistance of aramid fabrics, oxygen plasma modified aramid 1414 fabrics were combined with epoxy resin to prepare epoxy aramid composites. The influence of plasma pretreatment on the functional modification of the fabric was investigated, and then stab resistance of the composites was further studied. The experiment results show that when the plasma treatment power is 600 W and the treatment time is 18 min, the fabric surface is etched obviously and the number of oxygen-containing groups increases, and the wettability is improved, but the fabric tensile strength decreases; when the epoxy resin is coated on the plasma-modified aramid fabric, the epoxy group in the resin is firmly bonded with the oxygen-containing active group in the aramid fiber and the bond strength of the complex is better. The tensile strength is increased by 7.89% and the tested composite stab resistance is significantly improved compared with the conventional aramid 1414 fabric, the multi-layered structure has more excellent stab resistance.

Key words: plasma treatment, modified aramid fiber, surface treatment, aramid epoxy composite, stab resistant material

CLC Number: 

  • TS156

Tab.1

Layers setting of composite materials"

试样编号 芳纶织物层数 复合材料层数
1# 1 0
2# 0 1
3# 1 1
4# 0 2
5# 1 2
6# 2 2

Fig.1

Infrared spectra of aramid fibers"

Fig.2

SEM images of aramid fiber(×5 000). (a)Untreated; (b)Treated with 9 min;(c)Treated with 18 min; (d)Treated with 36 min"

Tab.2

Test results of tensile strength"

处理时间/min 拉伸强度/GPa 强度下降百分率/%
0 3.22
9 3.03 5.90
18 2.98 7.45
36 2.43 24.53

Tab.3

Test results of air permeability"

试样名称 喷嘴号 透气率/(cm3·(cm2·s)-1)
未处理芳纶 00 0.68
600 W处理18 min芳纶 02 2.89
单层芳纶环氧复合材料 09 0.00

Tab.4

Test results of puncture-proof"

试样编号 穿刺宽度/cm 穿刺深度/mm
1# 1.83 37.3
2# 1.07 27.3
3# 0.93 24.3
4# 0.56 12.0
5# 0.23 7.6
6# 0.07 4.8
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