The invention discloses a rubber composition for truck tire treads, which is prepared from the following raw materials in parts by weight: 70-90 parts of cis-1, 4-polyisoprene rubber, 10-30 parts of dissolved polystyrene-butadiene rubber, 10-30 parts of cyclohexane-1, 4-polyisoprene rubber, 10-30 parts of styrene-butadiene rubber, 10-30 parts of styrene-butadiene rubber, 10-30 parts of styrene-butadiene rubber, 10-30 parts of styrene-butadiene rubber, 10-30 parts of styrene-butadiene rubber, 10 The material is prepared from the following components in parts by weight: 20-30 parts of 1, 2-dicarboxylic acid diisononyl ester, 5-15 parts of high specific surface white carbon black, 1-3 parts of a cross-linking agent, 30-40 parts of super wear-resistant carbon black, 10-20 parts of niobium diselenide, 0.5-1.5 parts of a silane coupling agent, 3-6 parts of an anti-aging agent, 2-4 parts of microcrystalline wax, 3-5 parts of zinc oxide, 2-4 parts of stearic acid, 4-6 parts of a vulcanizing agent and 1-3 parts of an accelerant. The rubber composition provided by the invention has excellent modulus, strength, abrasion and other mechanical properties at a high temperature of 80 DEG C, the retention rate of the properties at normal temperature is 90% or above, meanwhile, the thermo-oxidative aging resistance is high, heat generation is low, the wear resistance of a truck tire produced by the rubber composition is remarkably improved, and the service life of the truck tire is prolonged. And particularly, the wear life of the tire used in tropical and subtropical areas can be obviously prolonged.
本发明公开了一种用于载重轮胎胎面的橡胶组合物,以重量份计由以下原料制成:70‑90份顺式1,4‑聚异戊二烯橡胶、10‑30份溶聚苯乙烯‑丁二烯橡胶、10‑30份环己烷‑1,2‑二羧酸二异壬酯、5‑15份高比表白炭黑、1‑3份交联剂、30‑40份超耐磨炭黑、10‑20份二硒化铌、0.5‑1.5份硅烷偶联剂、3‑6份防老剂、2‑4份微晶蜡、3‑5份氧化锌、2‑4份硬脂酸、4‑6份硫化剂、1‑3份促进剂。本发明提供的橡胶组合物在80℃高温下的模量、强度、磨耗等力学性能优异,对比常温下的上述性能保持率在90%以上,同时耐热氧老化性能强、生热低,该橡胶组合物生产的载重轮胎耐磨性能显著提高,尤其可明显提升在热带、亚热带等地区使用时的轮胎磨耗寿命。
Rubber composition for truck tire tread
一种用于载重轮胎胎面的橡胶组合物
2023-10-20
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 |