The invention provides a tread rubber material for an aircraft tire and application. The tread rubber material is mainly prepared from the following formula raw materials: 100 parts by weight of a rubber component, 0.5-10 parts by weight of end group modified polybutadiene, 35-65 parts by weight of reinforcing carbon black, zinc oxide, stearic acid, an anti-aging agent, a scorch retarder, an anti-reversion agent, an accelerant and sulfur, wherein the rubber component is natural rubber/butadiene rubber blended rubber or isoprene rubber/butadiene rubber blended rubber; the reinforcing carbon black is fine-particle reinforcing carbon black, and the iodine absorption value of the reinforcing carbon black is not lower than 100mg/g according to ASTM D1765 classification; and the modified group of the end group modified polybutadiene is hydroxyl or carboxyl. Based on a small quantity of hydroxyl groups, carboxyl groups, epoxy groups and the like contained on the surfaces of the reinforced carbon black particles, through a coupling reaction between the carbon black and the end group modified polybutadiene, the interface interaction between rubber and the carbon black is improved, dynamic heat generation of tread rubber is controlled, and application in high-performance aircraft tires is facilitated.
本申请提供了一种航空轮胎用胎面橡胶材料及应用,该胎面胶主要由如下配方原料制得:100重量份的橡胶组分;0.5‑10重量份的端基改性聚丁二烯;35‑65重量份的补强炭黑;以及氧化锌、硬脂酸、防老剂、防焦剂、抗返原剂、促进剂和硫磺;所述橡胶组分为天然橡胶/顺丁橡胶并用胶或异戊橡胶/顺丁橡胶并用胶;所述补强炭黑为细粒子补强炭黑,依ASTM D1765分类的吸碘值不低于100mg/g;所述端基改性聚丁二烯的改性基团为羟基或羧基。本发明基于补强炭黑粒子表面所含的少量羟基、羧基、环氧基等,通过炭黑与端基改性聚丁二烯之间的偶联反应,改善橡胶与炭黑的界面作用,控制胎面胶动态生热,利于在高性能航空轮胎中的应用。
Tread rubber material for aircraft tire and application
一种航空轮胎用胎面橡胶材料及应用
2022-02-08
Patent
Electronic Resource
Chinese
IPC: | B60C VEHICLE TYRES , Fahrzeugreifen / C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen / C08K Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe , USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS |
European Patent Office | 2024
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