The invention provides a sidewall rubber composition of a low-discoloration tire and a preparation method thereof, and the composition comprises the following components by mass: 30-60 parts of natural rubber, 40-60 parts of butadiene rubber, 10-15 parts of trans-butadiene-isoprene rubber, 30-60 parts of carbon black, 3-6 parts of an anti-aging agent, 1-3 parts of protective wax, 1.5-5 parts of zinc oxide, 1.5-2 parts of stearic acid, and 0.5-3 parts of sulfur. 0.5-3 parts of an accelerant and 0.1-2 parts of a multifunctional vulcanizing aid. According to the low-discoloration sidewall rubber composition provided by the invention, the trans-butadiene-isoprene rubber, the multifunctional vulcanizing aid, the anti-aging agent S-TMQ, 4030 and Winstay L are introduced, and all the components have a synergistic effect, so that discoloration of a rubber material in an aging process is reduced, the appearance of a tire is improved, and the low-discoloration sidewall rubber composition can be widely applied to manufacturing of tires of semi-steel automobiles.
本发明提供一种低变色轮胎的胎侧橡胶组合物及其制备方法,该组合物以质量计,包括以下组分:30‑60份的天然橡胶,40‑60份的顺丁橡胶,10‑15份的反式丁戊橡胶,30‑60份的炭黑,3‑6份的防老剂,1‑3份的防护蜡,1.5‑5份的氧化锌,1.5‑2份的硬脂酸,0.5‑3份的硫磺,0.5‑3份的促进剂,0.1‑2份的多功能硫化助剂。本发明提供的低变色胎侧橡胶组合物引入了反式丁戊橡胶、多功能硫化助剂、防老剂S‑TMQ、4030、Winstay L,各组分协同作用,降低了胶料在老化过程中的变色,改善了轮胎外观,可广泛应用于半钢汽车的轮胎制造中。
Sidewall rubber composition of low-discoloration tire and preparation method thereof
一种低变色轮胎的胎侧橡胶组合物及其制备方法
12.04.2024
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 |
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