| Study on Properties of EPDM Compound Ⅱ.Silica-reinforced EPDM Compound |
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| DOI： |
| Key Words: EPDM；silica；silane coupling agent Si69；surface treatment；dynamic heat build-up |
| Author Name | Affiliation | | Lu Yonglai | Beijing University of Chemical Technology | | Zhang Liqun | Beijing University of Chemical Technology | | Liu Li | Beijing University of Chemical Technology | | Feng Yuxing | Beijing University of Chemical Technology | | Tian Ming | Beijing University of Chemical Technology | | Wu Youping | Beijing University of Chemical Technology | | Wu Shemao | Beijing University of Chemical Technology |
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| Abstract: |
| The influence of the silica kind，level and surface treatment as well as the level of silane coupling agent Si69 on the static and dynamic properties of silica-reinforced EPDM was studied；the abrasion surface from Akron test was analysed with SEM and the relationship between the abrasion surface morphology and the tensile properties was described；the mechanism and process of the silica modification with silane coupling
agent were discussed；and the temperature in the core of rubber test piece under dynamic condition was measured with improved Goodrich compression fatigue tester.The results showed that the properties of the silica-reinforced EPDM compound were much lower than those carbon black-reinforced EPDM compound；the reinforcing effects of different silica kinds were quite different；the properties of the silica-reinforcing EPDM compound
were significantly improved when the silica was treated with silane coupling agent Si69，and the modifying effect was remarkably influenced by the coupling agent level and the modification method. |
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