Paper number 250
|ESTIMATION OF ELECTRICAL CONDUCTIVITY OF LCF-PP/PANI-COMPLEX BLENDS|
R. Taipalus and K. Friedrich
Institute for Composite Materials Ltd.
Erwin-Schrödinger-Strasse 58, D-67663 Kaiserslautern
|Summary||The aim of this study is to model the electrical conductivity of long carbon fibre (LCF) reinforced polypropylene (PP) composites and their blends with an electrically conductive polyaniline-complex (PANI-complex). A Fibre Contact Model is used to describe the electrical conductivity and to model the synergy effect between the two conductive components. This structure-oriented theory also considers the microstructural parameters, such as fibre length, orientation and concentration. The studied PANI-complex network is supposed to originate from processing induced PANI-complex fibrils, which are characterised in their dimensions and orientation. The predicted data for LCF-PP and PP/PANI-complex blends are in good agreement with the experimental results. By using an "increased conductive pathways" method, it is possible to model the synergy effect between LCF and PANI-complex. In this method it is assumed that the LCFs build a backbone of conductivity and the PANI-complex forms additional conductive pathways between them. Again the predictions are in good agreement with the experimental data.
||Keywords|| CFRP, electrical properties, modelling, synergy effect, PANI-complex.
Theme : Mechanical and Physical Properties ; Physical Properties
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