Preparation of polypyrrole/nylon-6 composite conducting fiber

Polypyrrole/nylon-6 composite fiber can be prepared by in-situ polymerization in pyrrole-aqueous solution . The effects of various parameters during the processing on the fiber conductivity were investigated in the paper. The results show that FeCl3·6H2O can be used as an effective oxidant and the optimal reaction conditions for excellent conducting performance are as follow: pyrrole concentration 0.05 mol/L, the initial mole ratio of oxidant/pyrrole 2.3, reaction temperature 20 ℃ and reaction time 3 h. The SEM photos show that the composite fiber presents skin-core structure and polypyrrole concentrates on the skin which forms conducting passage.