| Waste Tire Rubber Powder Modified by Deep Eutectic Solvent and Its Application in SBR |
| Received:February 05, 2021 Revised:February 25, 2021 |
| DOI：10.12136/j.issn.1000-890X.2023.01.0031 |
| Key Words: waste tire rubber powder；DES；surface desulfurization modification；selective desulfurization； SBR；crosslinking density；tensile property |
| Author Name | Affiliation | E-mail | | GUO Huaiqing | Qingdao University of Science and Technology | 540446566@qq.com | | SUN Wenshuo | Qingdao University of Science and Technology | | | DU Aihua* | Qingdao University of Science and Technology | aihuadu@qust.edu.cn |
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| Abstract: |
| Deep eutectic solvent（DES） was used for desulfurization modification of the surface of
waste tire rubber powder under the heating conditions of 90 ℃×1 h and 160 ℃×5 min and 1 kW microwave
treatment for 1. 5 min respectively，and the application of the modified rubber powder in styrene butadiene
rubber（SBR） was studied.The results showed that DES could selectively desulfurize rubber powder. Amino
groups appeared on the surface of the modified rubber powder，and the bonding strength between the modified
rubber powder and SBR matrix increased.Compared with the SBR vulcanizate filled with unmodified rubber
powder，the crosslinking density of the SBR vulcanizate filled with modified rubber powder increased and the
tensile properties were improved，indicating that the application effect of modified rubber powder was better. |
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