The invention relates to the technical field of new materials for tire manufacturing, in particular to tire tread rubber with high wet grabbing performance, a preparation method, application and a tire with high wet grabbing performance. The styrene-butadiene copolymer with the styrene content of 30%-43% is added to a raw rubber system, so that the glass transition temperature is increased, the loss peak is greatly increased, and the wet skid resistance is improved; secondly, by adding the wet-skid-resistant resin, the compatibility of the polystyrene-butadiene copolymer and the natural rubber is promoted, meanwhile, the loss peak value is promoted to be increased, and the wet-skid resistance is improved; thirdly, the wet skid resistance is improved through the vulcanization temperature and the vulcanization system and by controlling a microstructure such as crosslinking density, bond type and bond type distribution, the inventor finds that the total crosslinking density of the rubber is 10.5 * 10 <-5 > mol/cm < 3 >-16.5 * 10 <-5 > mol/cm < 3 >, the proportion of monosulfide bonds is 5%-15%, the proportion of disulfide bonds is 5%-15%, and the proportion of polysulfide bonds is 65%-85% through actual use verification of tires; the tire tread rubber has very good wet grabbing resistance.
本发明涉及轮胎制造新材料技术领域,尤其涉及一种具有高湿抓性能轮胎胎面胶、制备方法、应用和高湿抓性能轮胎。本发明通过生胶体系增加结合苯乙烯含量为30%~43%的苯乙烯丁二烯共聚物,提高玻璃化转变温度大幅度的增高损耗峰提升抗湿滑性能;其次,通过添加抗湿滑树脂,促使聚苯乙烯丁二烯共聚物与天然橡胶的相容,同时促使损耗峰值增高提升抗湿滑性能;第三,通过硫化温度、硫化体系,通过控制微观结构如:交联密度、键型、键型分布来提升抗湿滑特性,发明人通过轮胎实际使用验证发现,橡胶总交联密度为10.5×10‑5mol/cm3~16.5×10‑5mol/cm3,单硫键占比5%~15%,双硫键占比5%~15%,多硫键占比65%~85%,轮胎胎面胶具有非常好抗湿抓性能。
Tire tread rubber with high wet grabbing performance, preparation method, application and tire with high wet grabbing performance
一种具有高湿抓性能轮胎胎面胶、制备方法、应用和高湿抓性能轮胎
2023-01-31
Patent
Electronic Resource
Chinese
IPC: | C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen / B29B PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED , Vorbereiten oder Vorbehandeln der zu verformenden Masse / B29C Formen oder Verbinden von Kunststoffen , SHAPING OR JOINING OF PLASTICS / B29L INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES , Index-Schema für besondere Gegenstände in Verbindung mit Unterklasse B29C / B60C VEHICLE TYRES , Fahrzeugreifen |
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