The invention relates to low-heat-generation lower tread rubber of an engineering tire and a preparation method of the low-heat-generation lower tread rubber of the engineering tire, and the low-heat-generation lower tread rubber of the engineering tire is prepared from the following raw materials in parts by weight: 55-65 parts of natural rubber, 12-17 parts of carbon black, 13-18 parts of white carbon black, 1-2 parts of a silane coupling agent, 2-3 parts of zinc oxide, 1-2 parts of stearic acid, 1.5-2.5 parts of an anti-aging agent, 0.5-1.5 parts of sulfur and 0.5-1.5 parts of an accelerant. And 0.1 to 0.2 part of scorch retarder. Compared with the prior art, the high-content white carbon black is used in the formula to reduce the heat generation performance of the rubber material, the high-content silane coupling agent is added to improve the reversion resistance of the rubber material, meanwhile, the tearing performance and the flexing performance of the rubber material are also greatly improved, the physical performance of an engineering radial tire is improved, the service life of the tire is prolonged, and the service life of the tire is prolonged. Cost is reduced and benefits are increased.
本发明涉及一种工程胎轮胎低生热下胎面胶及其制备方法,工程胎轮胎低生热下胎面胶由如下重量份数的原料组成:天然橡胶55‑65份,炭黑12‑17份,白炭黑13‑18份,硅烷偶联剂1‑2份,氧化锌2‑3份,硬脂酸1‑2份,防老剂1.5‑2.5份,硫磺0.5‑1.5份,促进剂0.5‑1.5份,防焦剂0.1‑0.2份。与现有技术相比,本发明通过在配方中使用高含量的白炭黑以降低胶料的生热性能,加入高含量的硅烷偶联剂提高胶料的抗返原性,同时胶料的撕裂性能,屈挠性能也有大幅的提高,改善工程胎子午线轮胎的物理性能,延长轮胎使用寿命,降低成本,提高效益。
Tire low-heat-generation tread rubber of engineering tire and preparation method of tire low-heat-generation tread rubber
一种工程胎轮胎低生热下胎面胶及制备方法
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 |
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