The invention relates to the technical field of tires, in particular to tread rubber with high wet skid resistance and low rolling resistance and a preparation method thereof, and the preparation method comprises the steps of plastication first-stage mixing, second-stage mixing, final mixing and cooling standing. According to the formula, anionic polymerized solution polymerized styrene-butadienerubber is adopted, and low rolling resistance and high wet skid resistance are achieved; two kinds of end group modified solution polymerized styrene-butadiene rubber are introduced, the two kinds ofrubber contain styrene and vinyl with different contents, the requirements of rolling resistance and wet skid resistance can be considered, meanwhile, a large amount of high-dispersion white carbon black is added into the formula, through the selection of the two kinds of end group modified solution polymerized styrene-butadiene rubber, the combination of the rubber and white carbon black can be improved, the wet skid resistance of the tires is improved, the rolling resistance of the tires is reduced, labels of the tires are increased by two equivalents through formula improvement, and the rolling resistance and the wet skid resistance of the tires reach the B level and the B level of European label laws and regulations respectively.
本发明涉及轮胎技术领域,具体涉及一种高抗湿滑性能和低滚动阻力胎面胶及其制备方法,其制备方法包括塑炼一段混炼、二段混炼、终炼和冷却停放;其配方采用阴离子聚合的溶聚丁苯胶,具有低滚动阻力和高抗湿滑性能,本发明引入了两种端基改性的溶聚丁苯胶,这两种橡胶中含有不同含量的苯乙烯和乙烯基,能够兼顾滚动阻力和抗湿滑性能的要求,同时配方中添加大量的高分散白炭黑,通过这两种端基改性的溶聚丁苯胶的选用,能够改善橡胶与白炭黑的结合,本发明不仅提高了轮胎抗湿滑性能,也降低轮胎的滚动阻力,通过配方改进,使轮胎的标签上升了两个等价,滚动阻力和抗湿滑性能的轮胎分别达到了欧洲标签法规的B、B级。
Tread rubber with high wet skid resistance and low rolling resistance and preparation method thereof
一种高抗湿滑性能和低滚动阻力胎面胶及其制备方法
24.07.2020
Patent
Elektronische Ressource
Chinesisch
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 / B60C VEHICLE TYRES , Fahrzeugreifen / 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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