| Structure and Properties of Chopped Pitch-Based Carbon Fiber/Conductive Carbon Black/NBR Composite |
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| DOI： |
| Key Words: NBR；conductive carbon black；chopped pitch-based carbon fiber；thermal conductivity； electrical conductivity |
| Author Name | Affiliation | | ZHANG Dongxia | Qingdao University of Science and Technology | | CHENG Junmei | Qingdao University of Science and Technology | | ZHAO Shugao | Qingdao University of Science and Technology |
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| Abstract: |
| The effects of the addition level of conductive carbon black VXC72 and chopped pitch-based carbon fiber（CF） on the mechanical properties，thermal and electrical conductivity of NBR were investigated.The results showed that，with the increase of the addition level of VXC72，the tensile strength，tear strength and thermal conductivity of both VXC72/NBR compound and CF/VXC72/NBR composites increased，while the volume resistivity decreased gradually；while the modulus at 50% elongation, modulus at 100% elongation and thermal conductivity of CF/VXC72/NBR vulcanizate were higher than those of VXC72/NBR vulcanizates，respectively. For the same addition level of VXC72，with the increase of the addition level of CF，the tensile strength，tear strength and elongation at break of the composite first decreased and then increased，while the thermal conductivity almost increased linearly，and volume resistivity decreased significantly. |
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