ELECTRICAL RESISTIVITY,CRYSTALLIZATION AND MECHANICAL PROPERTIES OF POLYPROPYLENE/MULTI-WALLED CARBON NANOTUBE/CALCIUM CARBONATE COMPOSITES PREPARED BY MELT MIXING |
| |
Authors: | Ha-da Bao Zhao-xia Guo Jian Yu Institute of Polymer Science Engineering |
| |
Institution: | Ha-da Bao,Zhao-xia Guo , Jian Yu~* Institute of Polymer Science , Engineering,Department of Chemical Engineering,School of Materials Science , Engineering,Tsinghua University,Beijing 100084,China |
| |
Abstract: | Polypropylene (PP)/multi-walled carbon nanotube (MWCNT)/calcium carbonate (CaCO3) composites are prepared by melt mixing using two types of CaCO3 of different sizes. The electrical resistivities of the composites with the two types of CaCO3 are all lower than those of the corresponding PP/MWCNT composites at various MWCNT loadings (1 wt%-5 wt%). The morphology of the composites is investigated by field emission scanning electron microscopy (FESEM). The crystallization behavior of PP in the composites is characterized by differential scanning calorimetry (DSC). The storage modulus, as measured by dynamic mechanical analysis (DMA), increases significantly by the presence of CaCO3. |
| |
Keywords: | Conductivity Carbon nanotubes Polypropylene Calcium carbonate |
本文献已被 CNKI 万方数据 等数据库收录! |
|