| Factors Influencing Thermal Degradation of NBR |
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| DOI： |
| Key Words: NBR；thermal degradation；thermogravimetric analysis；acrylonitrile；crosslinking；Mooney viscosity |
| Author Name | Affiliation | | LIU Li | University of Science and Technology Beijing；Qingdao University of Science and Technology | | WANG Bingxin | Qingdao Advanced Material Co.，Ltd | | QU Yongtao | Qingdao University of Science and Technology | | ZHANG Baogang | Qingdao University of Science and Technology | | YANG Huai | University of Science and Technology Beijing |
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| Abstract: |
| The factors influencing the thermal degradation of NBR were analyzed by thermogravimetric analysis.The results showed that crosslinking could accelerate NBR thermal degradation and reduce the thermal degradation temperature.Mooney viscosity of raw rubber had no significant effect on NBR thermal degradation.With acrylonitrile content increased，the maximum weight loss temperature and the maximum weight loss rate decreased.The influence of acrylonitrile content at the maximum weight loss rate and maximum weight loss temperature was great at low heating rate conditions.With heating rate increasing，the maximum weight loss temperature increased，and the higher the acrylonitrile content was，the greater the influence of heating rate on the maximum weight loss temperature was.Interestingly，the influence of heating rate on the maximum weight loss rate was just opposite.Compared with N2 atmosphere，the degradation temperature of carbon black/NBR vulcanizate was higher in air atmosphere，and the degradation rate was lower. |
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