Preparation and Characterization of Conductive Cellulosic Fabric by Polymerization of Pyrrole

Abstract

Preparation of conductive cotton fabrics, by polymerization of pyrrole in presence of FeCl 3 as an oxidizing agent and tetraethylammonium p-toluene sulfonat (TEAp-TS) as a doping agent which in turn caused a reduction in the moisture regain of the substrate, resulted in production conductive cotton fabrics in laboratory scale. Factors affecting the properties of the fabrics were studied, such as ratio between FeCl 3 and TEAp-TS and pyrrole concentration. Polypyrrole coated cotton fabrics were characterized by scanning electron microscopy (SEM) and Fourier transform-infrared (FT-IR) spectroscopy. Resistivity, weight gain, color strength, tensile strength and elongation of the coated fabric with polypyrrol were monitored according to ASTM procedures. The results had shown that, the conductivity, weight gain, color strength, tensile strength and elongation increase by increasing FeCl 3 , TEAp-TS and pyrrole concentration. This is due to the increase of amount of the conductive polymer on the fabric surface.

Smart films based on bacterial cellulose nanofibers modified by conductive polypyrrole and zinc oxide nanoparticles

“…In fact, with the polymerization of PPy at high levels, the darkness of the films increased, as shown in Figure . The change in the color values of the BC films was confirmed by the work of Weiner et al ., who developed the preparation and characterization method of conductive cellulosic fabric by the polymerization of pyrrole. Δ E , as the most useful color parameter, was analyzed, and the results show that the pyrrole and ZnO concentrations had a significant effect on Δ E , and the polymerization time had no significant effect.…”

A new Approach for Preparation of Smart Conductive Textiles by Polyaniline through in-situ polymerization technique

“…Fabric tensile strength test was conducted according to ASTM method 1682 (1994) (using Testometric (M350-5CT), which is a standard method for breaking force and elongation of tensile fabrics [12]. The width and the length of the fabric strip were 50 mm and 200 mm, respectively.…”

“…The color intensity expressed as K/S value, of the stained samples before and after treatment was, as a function for polymerization efficiency, determined spectrophotometrically using Data color spectrophotometer. K/S was calculated by applying the Kubelka-Munk equation [12]. All the determinations in this work were done in triplicate…”

“…The widespread range of polyaniline applications is due to its simplicity of synthesis, cheap treating cost, chemical stability, and conductivity [10]. So many scientists interested in finding new requests such as its application in textile industries [11][12][13].PANI can be chemically synthesized in acidic media using different oxidizing agents, such as hydrogen peroxide, cerium nitrate, ammonium persulfate, potassium dichromate, etc [14].…”

“…First step, fabric treated with oxidant and dopant second step, the treated fabric in the first step treated with aniline. This method consumed time and energy [11][12][13].So In this work the paper authors thought for other method or a new approach to save more time and energy, the synthesis of polyaniline in its doped state, by in-situ polymerization on fabric surface in presence of Ferric chloride as oxidant and Egyptol as dopant at different pH values for 4 hours and 25 o C in one step was studied. This technique can prime to a decline in energy and time, so it considers a new approach in the formation of PANI on the fabric surface.…”