The invention discloses a long-acting crack-resistant sidewall rubber composition for an off-the-road tire, and relates to the technical field of tires. According to the technical scheme, the rubber composition comprises the following components in parts by weight: 100 parts of a rubber component, 43-53 parts of carbon black, 5-10 parts of processing oil, 2-4 parts of tackifying resin, 1-2 parts of a rubber cracking prevention agent DH-175, 2-4 parts of an anti-reversion agent DC-273, 4-6 parts of an anti-aging agent, 1-2 parts of protective wax, 3-5 parts of zinc oxide, 1-2 parts of stearic acid, 1.3-1.8 parts of sulfur, 1.4-1.8 parts of an accelerant and 0.1-0.2 part of a scorch retarder. The invention overcomes the problem of insufficient flexural aging resistance of the existing tire sidewall rubber material, and provides the long-acting and cracking-resistant sidewall rubber composition for the off-the-road tire, which can be used for a long time in a high-heat and high-ultraviolet scene, so that the flexural aging resistance of the sidewall rubber is greatly improved.
本发明公开了一种长效耐龟裂的工程机械轮胎胎侧胶组合物,涉及轮胎技术领域。其技术方案为:包括以下重量份数的组分:橡胶组分100份、炭黑43‑53份、加工油5‑10份、增粘树脂2‑4份、橡胶龟裂防止剂DH‑175 1‑2份、抗硫化返原剂DC‑273 2‑4份、防老剂4‑6份、防护蜡1‑2份、氧化锌3‑5份、硬脂酸1‑2份、硫磺1.3‑1.8份、促进剂1.4‑1.8份、防焦剂0.1‑0.2份。本发明克服现有轮胎胎侧胶料耐曲挠老化性能不足的问题,提供一种能够在高热、高紫外线场景下长期使用的长效耐龟裂的工程机械轮胎胎侧胶组合物,极大地提高了胎侧胶的耐曲挠老化性能。
Long-acting crack-resistant off-the-road tire sidewall rubber composition
一种长效耐龟裂的工程机械轮胎胎侧胶组合物
2024-12-31
Patent
Electronic Resource
Chinese
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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