The invention relates to the technical field of tire manufacturing, and discloses a tread rubber composition with high ice grasp and a mixing method thereof.Low-Tg butadiene rubber, butadiene styrene rubber, rubber oil and resin are reasonably proportioned, Tg of the butadiene rubber is smaller than or equal to-100 DEG C, and the cis content in the butadiene rubber is larger than or equal to 90%; tg of the styrene-butadiene rubber is less than or equal to-25 DEG C, the content of styrene in the styrene-butadiene rubber in the polymer is 20-35%, and the content of vinyl in the styrene-butadiene rubber in the polymer is 30-55%; the content of aromatic hydrocarbon in the rubber oil is 1-30 wt%, the content of naphthenic hydrocarbon is 30-60 wt%, and the content of paraffin hydrocarbon is 30-50 wt%; the aromaticity of the resin is 0-20%, and a filler and a processing aid are reasonably added. The rubber composition has the beneficial effects that the ice and snow ground gripping performance of the rubber composition is effectively improved, and the ice and snow ground braking performance of a tire is effectively improved.

    本发明涉及轮胎制造技术领域,公开了一种高冰抓的胎面橡胶组合物及其混炼方法,通过合理配比低Tg的顺丁橡胶和丁苯橡胶、橡胶油和树脂,所述顺丁橡胶的Tg≤‑100℃,顺丁橡胶中顺式含量≥90%;所述的丁苯橡胶的Tg≤‑25℃,丁苯橡胶中苯乙烯在聚合物中的含量为20‑35%,丁苯橡胶中乙烯基在聚合物中的含量为30‑55%;所述橡胶油中芳香烃含量wt%为1‑30%,环烷烃含量wt%为30‑60%,石蜡烃含量wt%为30‑50%;所述树脂芳香度为0‑20%,并合理添加填充剂和加工助剂。本发明的有益效果为:有效提高橡胶组合物的冰雪地抓地性能,有效改善轮胎的冰雪地制动性能。


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    Titel :

    Tread rubber composition with high ice grasp, mixing method thereof and tire


    Weitere Titelangaben:

    一种高冰抓的胎面橡胶组合物及其混炼方法和轮胎


    Beteiligte:
    DONG XINGWANG (Autor:in) / LIU HUI (Autor:in) / LIU GUOQING (Autor:in) / WANG DANLING (Autor:in) / YAN JINJIE (Autor:in) / ZHANG HONGYI (Autor:in) / LIU CHAO (Autor:in)

    Erscheinungsdatum :

    2023-11-17


    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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