The invention relates to the technical field of tire production, in particular to aramid tire tread rubber and a preparation method thereof. The preparation method comprises the following steps: carrying out surface modification on aramid staple fibers containing benzimidazole groups by adopting hydroxyl-terminated liquid polyisoprene rubber to obtain modified aramid staple fibers; uniformly mixing the modified aramid staple fibers and brominated butyl rubber to obtain an aramid composite adhesive; natural rubber, butadiene rubber, butadiene styrene rubber, aramid composite rubber, zinc oxide, stearic acid, an anti-aging agent, carbon black and a plasticizer are subjected to first-stage mixing, then an accelerant and a vulcanizing agent are added for second-stage mixing, and mixed rubber is obtained; placing the rubber compound in a mold for vulcanization to obtain the aramid tire tread rubber. According to the invention, the problem that the aramid staple fibers are easy to fly and agglomerate when being mixed as a filler is avoided, the dispersity of the aramid staple fibers in the mixed rubber is greatly improved, and finally the tire tread rubber with excellent comprehensive performance is obtained.

    本发明涉及轮胎生产技术领域,尤其涉及一种芳纶轮胎胎面胶及其制备方法。其制备包括以下步骤:采用端羟基液体聚异戊二烯橡胶对含苯并咪唑基团的芳纶短纤进行表面改性,获得改性芳纶短纤;将改性芳纶短纤和溴化丁基橡胶混炼均匀,获得芳纶复合胶;将天然橡胶、顺丁橡胶、丁苯橡胶、芳纶复合胶、氧化锌、硬脂酸、防老剂、炭黑和增塑剂进行一段混炼,然后加入促进剂和硫化剂进行二段混炼,获得混炼胶;将混炼胶置于模具中进行硫化,获得芳纶轮胎胎面胶。本发明避免了芳纶短纤作为填料进行混炼时易飞散团聚的问题,大幅度提高了芳纶短纤在混炼胶中的分散性,最终获得综合性能优异的轮胎胎面胶。


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    Titel :

    Aramid tire tread rubber and preparation method thereof


    Weitere Titelangaben:

    一种芳纶轮胎胎面胶及其制备方法


    Beteiligte:
    LEE CHANG-HO (Autor:in) / LEE SUNG-HO (Autor:in) / LEE SANG HAE (Autor:in)

    Erscheinungsdatum :

    2024-04-19


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    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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