| Effects of Hot Air Aging on Properties of Reinforced HNBR Compound |
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| DOI： |
| Key Words: HNBR；reinforcing agent；physical property；dynamic mechanical property；aging resistance |
| Author Name | Affiliation | | LIU Gao－jun | Qingdao University of Science and Technology | | ZHAO Ming－ming | Qingdao University of Science and Technology | | XU Shuai－feng | Qingdao University of Science and Technology | | LI Chao－qin | Qingdao University of Science and Technology |
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| Abstract: |
| The changes of the physical properties and dynamic mechanical property of HNBR reinforced by different reinforcing agents in the hot air aging process were investigated.The results showed that，when the addition level of reinforcing agent was 30 phr，the HNBR vulcanizates reinforced by magnesium dimethacrylate (MDMA) possessed the best comprehensive physical properties，the vulcanizates reinforced by zinc dimethacrylate(ZDMA) followed，and the vulcanizates reinforced by carbon black and silica showed relatively poor physical properties.The aging resistance of the vulcanizates with ZDMA or MDMA was also better. The peak values of loss factor of the vulcanizates decreased after hot air aging，and as the aging time prolonged，the decrement was higher.The wet skid resistance of the vulcanizates with carbon black was the best，and the rolling resistance of the vulcanizates with MDMA was the lowest. |
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