| Preparation and Properties of High Conductive Composites Based on Silicone Rubber |
| Received:May 09, 2022 Revised:May 09, 2022 |
| DOI：10.12136/j.issn.1000-890X.2023.07.0483 |
| Key Words: MVQ；conductive composite；conductive carbon black；flake micron silver；carbon nanotube；conductivity |
| Author Name | Affiliation | E-mail | | YU Donglin | Beijing University of Chemical Technology | 1002892323@qq.com | | ZOU Hua* | Beijing University of Chemical Technology | zouhua@mail. buct. edu. cn | | NING Nanying | Beijing University of Chemical Technology | |
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| Abstract: |
| High conductive composites based on methyl vinyl silicone rubber（MVQ） were prepared using conductive carbon black，flake micron silver and carbon nanotube as fillers，and their properties were studied. The results showed that the percolation threshold of conductive carbon black in MVQ was 8～12 phr （3. 33%～4. 92% of volume fraction）. When the dosage of conductive carbon black was 12 phr，the cross-linking network of conductive carbon black/MVQ composite was the most stable. When adding 150 phr flake micron silver on the basis of 12 phr conductive carbon black，the conductive network recovery of conductive carbon black/flake micron silver/MVQ composite at 50% strain was the largest. At 50% strain，the conductivity of conductive carbon black/flake micron silver/carbon nanotube/MVQ composite was 1. 2×104 S·m-1，and the conductivity change rate was 18%. |
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