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1.北京服装学院材料科学与工程学院 服装材料研究开发与评价北京市重点实验室 北京 100029
2.北京分子科学国家实验室 中国科学院化学研究所 北京 100190
Published:20 April 2017,
Received:3 June 2016,
Revised:2 August 2016,
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Xin Li, Ying-tao Xu, Yi-ping Zheng, Yan Zhang, Cong-ju Li, Guang-ming Chen. PEDOT-PSS/PVA Composite Conductive Textile with Electromagnetic Wave Absorption Properties Prepared by
Xin Li, Ying-tao Xu, Yi-ping Zheng, Yan Zhang, Cong-ju Li, Guang-ming Chen. PEDOT-PSS/PVA Composite Conductive Textile with Electromagnetic Wave Absorption Properties Prepared by
在自行织造的聚(3,4-乙烯二氧噻吩)-聚对苯乙烯磺酸钠/聚乙烯醇(PEDOT-PSS/PVA)导电织物表面,通过原位聚合法生成了致密的PEDOT-PSS导电聚合物覆盖层,所得织物称之为
in situ
PEDOT-PSS/PVA复合导电织物.研究发现,在优化的合成条件下,
in situ
PEDOT-PSS/PVA复合导电织物具有优异的导电性能,其表面电阻最低可达2 Ω/cm
2
.电磁屏蔽性能测试结果表明,单层
in situ
PEDOT-PSS/PVA导电复合织物的电磁屏蔽效能可达12 dB左右,屏蔽率约为75%;在4~18 GHz的范围内,其电磁波反射率大部分都在-5~-10 dB之间,可吸收75%~90%的电磁波,基本达到了军事吸波材料的要求.
On the surface of self-made PEDOT-PSS/PVA conductive textiles
compact and uniform PEDOT-PSS conductive coating is formed by
in situ
polymerization
and the resulted composite conductive textile is called
in situ
PEDOT-PSS/PVA. The synthesis conditions of the
in situ
polymerization are optimized. The morphology
structure and properties of the
in situ
PEDOT-PSS/PVA are measured. It is shown that the optimum molar ration of the reactant is [PSS]:[FeCl
3
]:[EDOT]
= 2.1:1.4:1 with a reaction time of 10 h. The resulted
in situ
PEDOT-PSS/PVA has excellent conductive property with a low surface resistance of 2 Ω/□ and electron conductivity of 360 S/cm under the optimized synthesis condition
which may be resulted from the synergistic action between PEDOT-PSS inside the fiber and the surface coating
forming the connected and effective conductive path to facilitate the electron transport. FTIR analysis indicates that there exists strong bonding force between base textile and PEDOT-PSS coating. Besides
the
in situ
PEDOT-PSS/PVA has strong near infrared shielding capability. The XPS measurements show that the sulfur content of the
in situ
PEDOT-PSS/PVA is much higher than that of the PEDOT-PSS/PVA
implying a higher PEDOT-PSS conductive component
which is also responsible for its low surface resistance. Moreover
the electromagnetic shielding measurements demonstrate that the electromagnetic shielding effectiveness of the
in situ
PEDOT-PSS/PVA can reach to 12 dB with a shielding efficiency of 75% compared with the 0 dB of PEDOT-PSS/PVA. In the range of 4 ~ 18 GHz
the most reflectivity of electromagnetic wave is between-5 and-10 dB
which can absorb 75% ~ 90% electromagnetic wave. Furthermore
the
in situ
PEDOT-PSS/PVA composite conductive textile presents a higher stability
good fastness to washing and acid resistance. The results indicate that the
in situ
polymerization is an effective method to improve the conductive property of PEDOT-PSS/PVA conductive textile
and the resulted
in situ
PEDOT-PSS/PVA composite conductive textile has an important application prospect as a novel kind of military electromagnetic wave absorption material.
PEDOT-PSS复合导电织物原位聚合电磁波吸收功能
PEDOT-PSSConductive textileIn situ polymerizationElectromagnetic wave absorption properties
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