多轴向导电芳纶增强复合材料及其电磁屏蔽性能

doi:10.13475/j.fzxb.20181002405

纺织学报 ›› 2019, Vol. 40 ›› Issue (02): 100-104.doi: 10.13475/j.fzxb.20181002405

多轴向导电芳纶增强复合材料及其电磁屏蔽性能

缪润伍, 金丽华, 魏祺煜, 韩潇, 洪剑寒()

绍兴文理学院纺织服装学院, 浙江绍兴 312000

收稿日期:2018-10-12 修回日期:2018-11-14 出版日期:2019-02-15 发布日期:2019-02-01
通讯作者: 洪剑寒
作者简介:缪润伍(1998—),男。主要研究方向为导电纤维材料。
基金资助:
国家级大学生创新创业训练计划项目(20170349008);国家级大学生创新创业训练计划项目(201810349023);绍兴市公益技术应用研究项目(201810016);绍兴文理学院校级科研项目(2017LG1006)

Preparation and electromagnetic shielding property of conductive poly(p-phenylene terephamide) of reinforced composite materials

MIAO Runwu, JIN Lihua, WEI Qiyu, HAN Xiao, HONG Jianhan()

College of Textile and Garment, Shaoxing University, Shaoxing, Zhejiang 312000, China

Received:2018-10-12 Revised:2018-11-14 Online:2019-02-15 Published:2019-02-01
Contact: HONG Jianhan

摘要/Abstract

摘要：

为提高芳纶的导电能力,以芳纶长丝纱为基材,采用一种基于原位聚合法的纱线连续导电处理方法制备芳纶/聚苯胺复合导电纱线。并以导电芳纶为增强体,以不饱和聚酯树脂为基体,制备了二轴向、三轴向和四轴向导电芳纶增强复合材料,研究了其电磁屏蔽性能。结果表明:经导电处理后,芳纶纤维表面附着一层导电聚苯胺,其电导率可达1.4~1.9 S/cm,力学性能稍有下降;多轴向导电芳纶增强复合材料其屏蔽效能值随着导电芳纶轴向数和排列密度的增大而提高,当导电芳纶排列密度达到70 根/(5 cm)时,四轴向导电芳纶增强复合材料对0.1~1.5 GHz范围内电磁波的平均电磁屏蔽效能达到22 dB。

关键词: 芳纶, 聚苯胺, 复合材料, 电磁屏蔽

Abstract:

In order to improve the conductivity of poly (p-phenylene terepahmide) (PPTA) filament yarn, conductive PPTA/polyaniline (PANI) composite yarn was manufactured by an in-situ polymerization-based continuous yarn conductive treatment process. Conductive PPTA yarn reinforced bi-axial, tri-axial and tetra-axial composite materials were prepared by using the conductive PPTA/PANI composite yarn as reinforcement and unsaturated polyester resin as matrix, and then the electromagnetic shielding effectiveness of the composite materials were measured. The results indicate that the surface of PPTA fiber is covered with conductive PANI layer after conductive treatment, the electrical conductivity can reach 1.4-1.9 S/cm, and the mechanical properties of the PPTA filament yarn declines slightly after treatment. The shielding effectiveness value of the multi-axial conductive PPTA yarn reinforced composite materials increases with the axial direction and density of conductive PPTA yarn, when the fabric density is 70/(5 cm), the average shielding effectiveness value of the tetra-axial conductive PPTA yarn reinforced composite material reaches 22 dB in the frequency range from 0.1 GHz to 1.5 GHz.

Key words: poly(p-phenylene terepahmide), polyaniline, composite material, electromagnetic shielding effectiveness

中图分类号:

TQ327.9

缪润伍, 金丽华, 魏祺煜, 韩潇, 洪剑寒. 多轴向导电芳纶增强复合材料及其电磁屏蔽性能[J]. 纺织学报, 2019, 40(02): 100-104.

MIAO Runwu, JIN Lihua, WEI Qiyu, HAN Xiao, HONG Jianhan. Preparation and electromagnetic shielding property of conductive poly(p-phenylene terephamide) of reinforced composite materials[J]. Journal of Textile Research, 2019, 40(02): 100-104.

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样品名称	断裂强度/ (cN·dtex^-1)	断裂伸长率/%	初始模量/ (cN·dtex^-1)
PPTA	14.32±0.24	2.67±0.16	527.74±28.16
PPTA/PANI	12.46±0.60	2.34±0.15	523.20±10.23

密度/ (根· (5 cm)^-1)	屏蔽效能/dB			屏蔽率/%
密度/ (根· (5 cm)^-1)	二轴向	三轴向	四轴向	二轴向	三轴向	四轴向
25	4.89	9.24	11.84	67.56	88.09	93.45
40	8.24	11.94	14.82	85.00	93.60	96.70
55	10.00	15.43	17.10	90.00	97.14	98.05
70	12.50	18.39	22.09	94.38	98.55	99.38

多轴向导电芳纶增强复合材料及其电磁屏蔽性能

Preparation and electromagnetic shielding property of conductive poly(p-phenylene terephamide) of reinforced composite materials

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