Authors: WenJeng Guo YuanYuan Su JheLine Jhang WeiJen Lai ChienLung Chen KuoChung Cheng
Publish Date: 2011/02/17
Volume: 18, Issue: 6, Pages: 1417-1424
Abstract
The thermophysical properties and combustion behavior of polyethylene terephthalate PET composite formulations that contain bamboo charcoal BC fillers are studied The experimental results showed that the volume resistance decreased sharply but with little effect on thermal conductivity when PET was loaded with more than bamboo charcoal Thermogravimetric analysis TGA revealed that higher bamboo charcoal loading was associated with a higher onset temperature of 50 degradation Td50 The SEM images and filter test results showed a strong coupling effect between bamboo charcoal and PET and uniform dispersion of bamboo charcoal in a PET matrix A flammability test was performed using cone calorimetry and 3 wt bamboo charcoal filler in PET was found to give the best flame retardancy and the most effective smoke suppression The rheological properties of dynamic viscosity modulus and yield stress revealed that a higher bamboo charcoal loading was associated with greater shear thinning and thus viscosity at higher frequencies
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