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http://dx.doi.org/10.5764/TCF.2016.28.2.92

Effect of Coated Polypyrrole Content on the Properties of Polypyrrole Coated Fabrics  

Son, Seong-Ho (Department of Organic Material Science and Engineering, Pusan National University)
Lee, Young-Hee (Department of Organic Material Science and Engineering, Pusan National University)
Lee, Dong-Jin (Korea Institute of Footwear and Leather Technology)
Kim, Sung Yeol (School of Mechanical Engineering, Kyungpook National University)
Kim, Han-Do (Department of Organic Material Science and Engineering, Pusan National University)
Publication Information
Textile Coloration and Finishing / v.28, no.2, 2016 , pp. 92-100 More about this Journal
Abstract
To chemically prepare polypyrrole(pPy) coated fabrics(silk, cotton and nylon fabrics), the fabrics were first soaked in 0.4M oxidant $FeCl_3$/0.06M dopant anthraquinone-2-sulfonic acid solution for 5min at room temperature, and subsequently soaked in a 0.4M monomer pyrrole aqueous solution for 5min at room temperature. The content(wt%) of coated pPy in the coated fabrics was controlled by the number of treatments(these two steps). This study examined the effect of the number of treatments/pPy content on the sheet resistance, mechanical/bending properties and color behaviors of pPy coated fabrics. The coated pPy content, sheet resistance(${\Omega}$/square) and color strength(K/S) of pPy coated fabrics increased sharply with increasing number of treatments up to 20 times, while the increase slowed down afterward. The tensile strength, elongation at break and lightness($L^*$) decreased with increasing number of treatments. The tensile modulus and bending rigidity of coated fabrics increased significantly with increasing number of treatments/coated pPy content. This indicated that the flexibility of coated fabrics decreased considerably.
Keywords
conducting polymer; polypyrrole; coating; textile substrate; sheet resistance;
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