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Fiber-reinforced concrete significantly enhances the structural and nonstructural properties of traditional concrete by incorporating fibers like steel, glass, and polymers. These fibers, varying from natural ones such as sisal and cellulose to manufactured ones like polypropylene and Kevlar, are mixed into hydraulic cement with aggregates. Steel fibers, often preferred for their robustness, contribute to improved ductility, toughness, and post-cracking performance. The concrete is classified...
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Updated: Apr 12, 2026

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Conductive polypyrrole/viscose fiber composites.

Ning Wang1, Guodong Li1, Zhuo Yu1

  • 1Tianjin Municipal Key Lab of Fiber Modification and Functional Fiber, School of Material Science and Engineering, Tianjin Polytechnic University, Tianjin 300389, China.

Carbohydrate Polymers
|May 13, 2015
PubMed
Summary
This summary is machine-generated.

Conductive polypyrrole/viscose fiber composites were synthesized. Optimal conditions yielded stable conductivity of 1.5 S/cm even after extensive washing, demonstrating durable material properties.

Keywords:
CompositesConductivePolypyrroleViscose fiber

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Area of Science:

  • Materials Science
  • Polymer Chemistry

Background:

  • Viscose fiber (VCF) is a versatile material.
  • Developing conductive composites is crucial for advanced applications.

Purpose of the Study:

  • To synthesize conductive polypyrrole/viscose fiber (PPy/VCF) composites.
  • To investigate the impact of reaction parameters on composite properties.
  • To determine optimal synthesis conditions for enhanced conductivity and stability.

Main Methods:

  • Polymerization of pyrrole (Py) on VCF using FeCl3 oxidant and sodium dodecyl benzene sulfonate (SDBS) dopant.
  • Characterization using Fourier transform infrared spectra (FT-IR), thermal gravimetric analysis (TGA), and X-ray photoelectron spectroscopy (XPS).
  • Orthogonal experimental design to optimize reaction time, Py concentration, FeCl3 concentration, and SDBS concentration.

Main Results:

  • Successful synthesis of PPy/VCF composites with confirmed interaction between polypyrrole and VCF.
  • Identification of imine, amine, and cationic nitrogen atom structures within the PPy matrix.
  • Optimal conditions determined as 5h reaction time, 0.1 mol/L Py concentration, and 0.25 mol/L FeCl3 concentration.
  • Achieved stable conductivity of 1.5 S/cm after 50 water washes, indicating excellent durability.

Conclusions:

  • The study successfully developed a method for creating stable and conductive PPy/VCF composites.
  • Optimized synthesis conditions significantly enhance the material's conductivity and wash stability.
  • The resulting PPy/VCF composites show promise for applications requiring durable electrical conductivity.