The invention provides a wet-skid-resistant rubber composition for an environmentally-friendly tire, and a preparation method thereof. The preparation method comprises the following steps: carrying out a copolymerization reaction on polyether polyol and a silane coupling agent; carrying out multi-point anchoring modification on the surfaces of nano white carbon black particles by the generated product organosilicon/polyether polyol copolymer; carrying out graft polymerization on solution polymerized styrene-butadiene rubber cement by using a polar monomer; forming a barrier layer with high connection strength on the surfaces of the nano white carbon black particles through coating treatment to separate the nano white carbon black particles; and finally directly mixing with the solution polymerized styrene-butadiene rubber cement, and coagulating to prepare the rubber composition for the wet-skid-resistant tire tread. According to the invention, the problem that nano white carbon blackis easy to agglomerate is solved; meanwhile, agglomeration caused by long-term storage, high temperature and high shear conditions can be completely eradicated, the nano white carbon black is endowedwith super-dispersity, the compatibility of the nano white carbon black and solution polymerized styrene-butadiene rubber is improved, and it is guaranteed that nano white carbon black particles can be evenly dispersed into a solution polymerized styrene-butadiene rubber matrix.
本发明提供一种绿色轮胎用抗湿滑橡胶组合物及其制备方法。该发明首先对聚醚多元醇和硅烷偶联剂进行共聚反应,其生成产物有机硅/聚醚多元醇共聚物对纳米白炭黑粒子表面进行多点锚固改性,而后对溶聚丁苯胶浆用极性单体进行接枝聚合,最后通过包覆处理在纳米白炭黑粒子表面形成一种连接强度高的阻碍层达到分离纳米白炭黑粒子,最后与溶聚丁苯胶浆直接混合、凝聚来制备用于抗湿滑轮胎胎面的橡胶组合物。该发明不仅解决纳米白炭黑的易团聚问题,而且还能杜绝因长期存放、高温、高剪切条件下又再次发生团聚,赋予纳米白炭黑的超分散性,同时也改善纳米白炭黑与溶聚丁苯橡胶的相容性,保证纳米白炭黑粒子能够均匀地分散到溶聚丁苯橡胶基体里。
Wet-skid-resistant rubber composition for environmentally-friendly tire, and preparation method thereof
一种绿色轮胎用抗湿滑橡胶组合物及其制备方法
2020-04-28
Patent
Electronic Resource
Chinese
IPC: | C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen / B60C VEHICLE TYRES , Fahrzeugreifen / C08F MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS , Makromolekulare Verbindungen, erhalten durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind / C08K Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe , USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS |
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