| Effect of coupling agent and mixing process on the properties of carbon black filled NBR vulcanizates |
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| DOI： |
| Key Words: NBR；coupling agent；high temperature mixing process；physical properties；dynamic properties. |
| Author Name | Affiliation | | SONG Chengzhi | Qingdao University of Science and Technology | | DU Ai-hua | Qingdao University of Science and Technology | | CHE Yong-xing | Qingdao University of Science and Technology | | ZHANG Zhi-guang | Qingdao University of Science and Technology |
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| Abstract: |
| The effect of coupling agent Si69，KH-550 and mixing process on the curing characteristics，apparent crosslink density，physical properties and dynamic properties of carbon black filled NBR was investigated.The results showed that，optimum cure timet90 of NBR compound was extended by using coupling agent，scorch timets1 was shortened and t90 of NBR compound was extended under high temperature mixing process；the apparent crosslink density and the interactions between carbon black and rubber were improved by using coupling agent and high temperature mixing process，which could enhance the physical properties of NBR vulcanizates；the aging resistance of NBR vulcanizates was improved by using coupling agent KH-550 and high temperature mixing process.Dynamic properties of NBR vulcanizates were improved by using coupling agent Si69 or KH-550，while the better dynamic properties of NBR vulcanizates were obtained by using KH-550 under high temperature mixing process. |
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