| Study on network structure in silica filled ESBR compound |
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| DOI： |
| Key Words: ESBR；silica；silane coupling agent；network structure |
| Author Name | Affiliation | | YANG Jun | Beijing University of Chemical Technology | | WU You-ping | Beijing University of Chemical Technology | | XU Chun-yan | Beijing University of Chemical Technology | | ZHANG Li-qun | Beijing University of Chemical Technology |
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| Abstract: |
| The network structure of silica-filled ESBR compound and its effect on Mooney viscosity and dynamic visco-elasticity were experimentally investigated.The results showed that the content of bound rubber and the stability of network structure in silica-filled ESBR compound increased significantly by adding coupling agent Si69 and heat treating，and the condition time and temperature had little effect on the network structure.In contrast to the rubber compound without coupling agent Si69 or that with coupling agent Si69 but without heat treating，the rubber compound with both coupling agent Si69 and heat treating gave the joint points of network mainly composed of flexible rubber matrix leading to a deformation resistant network；the Mooney viscosity and dynamic modulus werelower，and the dynamic modulus had lower strain（ε）dependency；and the lower strain ε，the higher tanδ，and the higher strain ε，the lower tanδ. |
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