The invention relates to the field of electric tires, and discloses a sidewall rubber composition, sidewall rubber, a preparation method of the sidewall rubber and an electric automobile tire. The sidewall rubber composition contains a rubber component, the rubber component comprises natural rubber and neodymium butadiene rubber, the mass fraction of cis-1, 4-structure of the neodymium butadiene rubber is greater than or equal to 98%, and the molecular weight distribution index Mw/Mn is less than or equal to 3.5. The tire comprising the sidewall rubber formed by the rubber composition has low rolling resistance and excellent mechanical properties, and is suitable for electric automobile tires.
本发明涉及电动轮胎领域,公开了一种胎侧橡胶组合物和胎侧胶及其制备方法和电动汽车轮胎。所述胎侧橡胶组合物含有橡胶组分,其中,所述橡胶组分包括天然橡胶和钕系顺丁橡胶,所述钕系顺丁橡胶的顺式1,4‑结构质量分数≥98%,分子量分布指数Mw/Mn≤3.5。使得包括由所述橡胶组合物形成的胎侧胶的轮胎具有低的滚动阻力以及优异的力学性能,适合电动汽车轮胎。
Tire sidewall rubber composition, tire sidewall rubber, preparation method of tire sidewall rubber composition and tire sidewall rubber, and electric automobile tire
胎侧橡胶组合物和胎侧胶及其制备方法和电动汽车轮胎
2023-07-11
Patent
Elektronische Ressource
Chinesisch
IPC: | C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen / 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 |
Sidewall rubber composition, sidewall rubber and tire
Europäisches Patentamt | 2023
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