| Application of Wet Mixing Silica Masterbatch in Tread Compound of All-steel Truck and Bus Radial Tire |
| Received:February 02, 2019 Revised:February 02, 2019 |
| DOI：10.12136/j.issn.1000-890X.2020.01.0039 |
| Key Words: wet mixing silica masterbatch；all-steel truck and bus radial tire；tread compound；dynamic mechanical propertiy；dispersibility |
| Author Name | Affiliation | E-mail | | LI Zaiqin* | Bayi Rubber Co.,Ltd | 929317533@qq.com | | LIU Qiang | Bayi Rubber Co.,Ltd | | | SHAN Zhen | Bayi Rubber Co.,Ltd | | | PEI Kun | Bayi Rubber Co.,Ltd | | | WU Xia | Bayi Rubber Co.,Ltd | |
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| Abstract: |
| The application of the silica masterbatch prepared by wet mixing process in the tread compound of all-steel truck and bus radial tire was studied. The results showed that，compared with the compound prepared by traditional blending process，the Mooney viscosity of wet mixing silica masterbatch compound increased，the Mooney scorch time andand t90 were prolonged，the density increased，the Shore A hardness and modulus at 100% and 300% elongation increased，the loss factor at 60 and 80 ℃ was slightly enlarged，and the dispersion of silica was similar. The wet mixing process had fewer mixing steps comparing with dry process and the silica dust was minimized. By using the masterbatch from wet process，the dimension stability of the semi-finished parts was good，and the durability of the finished tires met the requirements of national standards. |
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