The invention provides tread rubber, a preparation method thereof and an agricultural tire. In the preparation method, raw materials comprise first rubber, second rubber, a first filler, a second filler, a vulcanizing aid, a silane coupling agent, protective wax, tear-resistant resin, a first vulcanizing agent and a first vulcanization accelerator; the vulcanizing aid is obtained by pre-reaction of an anti-aging agent and a vulcanizing system drug; the preparation method comprises the following steps: S1, mixing a vulcanizing aid with a first filler, a second filler, first rubber, a silane coupling agent and a first solvent, and carrying out wet mixing and solvent separation to obtain a rubber master batch; the preparation method comprises the following steps: S1, preparing master batch, S2, internally mixing the master batch, and carrying out first dry-process mixing on the obtained rubber material, second rubber, protective wax and tear-resistant resin to obtain first-stage master batch, and S3, carrying out second dry-process mixing on the first-stage master batch, a first vulcanizing agent and a first vulcanization accelerator, and carrying out vulcanization treatment on a second dry-process mixing product to obtain vulcanized rubber. And the properties of wear resistance, deflection resistance and the like of the tread rubber are improved.

    本发明提供了一种胎面橡胶及其制备方法、农业轮胎。该制备方法中,原料包括第一橡胶、第二橡胶、第一填料、第二填料、硫化助剂、硅烷偶联剂、防护蜡、抗撕裂树脂、第一硫化剂和第一硫化促进剂;硫化助剂由防老剂和硫化体系药品经预反应得到;制备方法包括:步骤S1,将硫化助剂与第一填料、第二填料、第一橡胶、硅烷偶联剂、第一溶剂混合,进行湿法混炼,溶剂分离,得到母胶;步骤S2,将母胶进行密炼,得到的胶料与第二橡胶、防护蜡、抗撕裂树脂进行第一干法混炼,得到一段母炼胶,步骤S3,将一段母炼胶与第一硫化剂、第一硫化促进剂进行第二干法混炼,第二干法混炼产物经硫化处理,得到硫化胶。改善了胎面橡胶的耐磨耗、耐曲挠等性能。


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    Title :

    Tread rubber, preparation method thereof and agricultural tire


    Additional title:

    胎面橡胶及其制备方法、农业轮胎


    Contributors:
    FU KAI (author) / JIA WEIJIE (author) / ZHONG LIANG (author) / HE FUJIN (author) / WANG XIN (author)

    Publication date :

    2025-03-14


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    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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