| Preparation of a Multi-functional Rubber Aids STU and Its Effect on Curing Behavior of Silica/NR Compound |
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| DOI： |
| Key Words: multi-functional rubber aids；NR；silica；surface modification；processability；curing behavior |
| Author Name | Affiliation | | YANG Shuyan | Dongguan University of Technology | | LIU Lan | South China University of Technology | | JIA Zhixin | South China University of Technology | | LUO Yuanfang | South China University of Technology | | JIA Demin | South China University of Technology |
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| Abstract: |
| A new muti-functional rubber aids，N-phenyl-N′-（γ-triethoxysilane）-propyl thiourea（STU），was prepared and its effects on the processability and curing behavior of silica/NR compound were investigated.The results showed that，with thiourea and siloxane functional groups，STU could in-situ modify silica surface in hot pressing conditions，effectively inhibit the formation of silica network in rubber matrix，and improve the processability of the compound.As the addition level of silica increased，the scorch time and optimum cure time of STU/silica/NR compound were extended，but the crosslink density was decreased.The optimum addition level of silica was 30 phr. |
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