| Effect of Dispersant B-52 on Properties of Silica/NR Composites |
| Received:July 06, 2019 Revised:July 06, 2019 |
| DOI：10.12136/j.issn.1000-890X.2020.07.0523 |
| Key Words: silica；NR；composite；dispersant；dynamic mechanical property；microstructure |
| Author Name | Affiliation | E-mail | | WANG Li* | Guangdong University of Petrochemical Technology | wanglihaha@126.com | | FU Wen* | Guangdong University of Petrochemical Technology | a449192213@163.com | | LIN Lezhi | Guangdong University of Petrochemical Technology | | | ZHAO Zhuanghong | Guangdong University of Petrochemical Technology | |
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| Abstract: |
| The silica/natural rubber（NR） composites were prepared by mechanical blending，and the effect of the addition level of dispersant B-52 on the properties of silica/NR composites was studied. The results showed that，with the increase of the addition level of dispersant B-52，the t10 and t90 of the composites were extended first and then shortened，bound rubber content and apparent cross-linking density increased，and comprehensive physical properties increased first and then decreased. The composites had the best comprehensive physical properties when the addition level of dispersant B-52 was 2 phr. |
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