The invention discloses a composite tread rubber elastomer and a preparation method thereof, and the composite tread rubber elastomer comprises the following components by mass: 100 parts of styrene butadiene rubber; 30 to 70 parts of white carbon black; 10 to 30 parts of silicone rubber compound; 5 to 10 parts of natural rubber; 5-10 parts of butadiene rubber; 1-5 parts of a coupling agent, 1-3 parts of an anti-aging agent, 1-3 parts of an assistant vulcanizing agent and 1-4 parts of a vulcanizing agent. The silicone rubber is mixed in advance, and the compatibilizer is added during mixing, so that the problem of poor compatibility of the silicone rubber and the styrene-butadiene rubber is solved, and meanwhile, the problem that the vulcanization speeds of the tread rubber and the primer rubber are not matched is solved by adopting the peroxide vulcanizing agent. The composite tread rubber elastomer is excellent in comprehensive performance, tensile strength is larger than or equal to 15 Mpa, elongation at break is larger than or equal to 500%, Akron abrasion is smaller than or equal to 0.15 cm < 3 >/1.61 km, and aging resistance is excellent.
本发明公开了一种复合胎面胶弹性体及其制备方法,包括下述质量份的组分:丁苯橡胶,100份;白炭黑,30~70份;硅橡胶混炼胶:10~30分;天然橡胶,5~10份;顺丁橡胶,5~10份;偶联剂,1~5份,防老剂1~3份,助硫化剂1~3份,硫化剂1~4份。本发明将硅橡胶预先混炼,混炼时加入增容剂,解决了硅橡胶与丁苯橡胶相容性差的问题,同时采用一种过氧化物硫化剂解决胎面胶和胎底胶硫化速度不匹配的问题。本发明复合胎面胶弹性体综合性能优异,拉伸强度≥15Mpa,断裂伸长率≥500%,阿克隆磨耗≤0.15cm3/1.61km,耐老化性能优异。
Composite tread rubber elastomer and preparation method thereof
一种复合胎面胶弹性体及其制备方法
2024-11-01
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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