复合酸掺杂PVA/PANI/Ag复合膜的电化学制备及性能研究

doi:10.19491/j.issn.1001-9278.2011.10.008

中国塑料 ›› 2011, Vol. 25 ›› Issue (10): 38-43 .DOI: 10.19491/j.issn.1001-9278.2011.10.008

复合酸掺杂PVA/PANI/Ag复合膜的电化学制备及性能研究

邓姝皓王玉

收稿日期:2011-07-22 修回日期:1900-01-01 出版日期:2011-10-26 发布日期:2011-10-26

Study on Electrochemical Synthesis and Properties of Poly (vinyl alcohol) /Polyaniline/Ag Composite Films Co-doped with Mixed Acids

DENG Shuhao WANG Yu

Received:2011-07-22 Revised:1900-01-01 Online:2011-10-26 Published:2011-10-26
Contact: DENG Shuhao

摘要/Abstract

摘要： 采用电化学法制备了硫酸(H2SO4)和磺基水杨酸(SSA)共掺杂的导电聚乙烯醇/聚苯胺(PVA/PANI)复合膜，采用正交设计法优化了工艺条件，研究了沉积银电流密度和时间、拉伸对复合膜电导率的影响。采用红外光谱、X射线衍射、扫描电镜对复合膜进行表征。结果表明，最佳条件下获得的PVA/PANI复合膜的电导率为22.72 S/cm；在此复合膜上以50 mA/cm2沉积2 min银可使复合膜的电导率提高到1250 S/cm；对2种复合膜进行适当的拉伸可使其电导率分别提高20.74 %和18.04 %。复合膜有一定程度的结晶，经拉伸后其结晶度有所提高。

关键词: 聚苯胺, 银, 电化学聚合, 复合膜, 电导率, 拉伸, 聚乙烯醇

Abstract: Conductive polyaniline (PANI) films co-doped with sulfosalicylic acid (SSA) and sulfuric acid (H2SO4) were prepared via electrochemical method on a poly (vinyl alcohol) (PVA) supporting film, and the optimum condition of preparation was found through an orthogonal design. The influences of deposit current density and time of silver (Ag) and stretching on the conductivity of composite film were also studied. The composite films were characterized by IR, XRD and SEM. The result showed that the conductivity of PVA/PANI composite film obtained under optimum conditions was 22.72 S/cm. Deposited Ag by current density of 50 mA/cm2 for 2 min into prior film sequentially, the conductivity increased to 1250 S/cm significantly. Applying appropriate stretching to PVA/PANI and PVA/PANI/Ag composite films, the conductivity could be enhanced by 20.74 % and 18.04 %, respectively, and the crystallinity was improved.

Key words: polyaniline, silver, electrochemical synthesis, composite film, electric conductivity, stretching, poly(vinyl alcohol)

邓姝皓王玉. 复合酸掺杂PVA/PANI/Ag复合膜的电化学制备及性能研究[J]. 中国塑料, 2011, 25(10): 38-43 .

DENG Shuhao WANG Yu. Study on Electrochemical Synthesis and Properties of Poly (vinyl alcohol) /Polyaniline/Ag Composite Films Co-doped with Mixed Acids[J]. China Plastics, 2011, 25(10): 38-43 .

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复合酸掺杂PVA/PANI/Ag复合膜的电化学制备及性能研究

Study on Electrochemical Synthesis and Properties of Poly (vinyl alcohol) /Polyaniline/Ag Composite Films Co-doped with Mixed Acids

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