The invention discloses a block copolymer, a composition, a preparation method of the block copolymer, a vulcanized rubber, applications of the vulcanized rubber, a tread rubber and a tire. Accordingto the invention, the block copolymer contains a PI block, an SSBR1 block and an SSBR2 block, wherein the content of the 3,4-structure in the PI block is low, the content of vinyl and the content of styrene in the SSBR1 block are moderate, and the content of vinyl and the content of styrene in the SSBR2 block are high; the block copolymer further comprises a connecting unit derived from a compoundrepresented by a formula I, wherein part of the SSBR1 block is connected with the PI block through the connecting unit, the rest SSBR1 block is directly connected with the PI block, and at least partof the SSBR2 block is directly connected with the SSBR1 block; the copolymer rubber can obtain favorable wet skid resistance, obviously lowers the rolling resistance, has favorable comprehensive physical and mechanical properties, and is especially suitable to be used as tread rubber of tires; and the formula I is CH2=CH-R1-CH=CH2.

    本发明公开了一种嵌段共聚物和组合物及其制备方法以及硫化橡胶和应用以及胎面胶和轮胎。根据本发明的嵌段共聚物含有PI嵌段、SSBR嵌段和SSBR嵌段,PI嵌段3,4‑结构含量较低,SSBR嵌段中乙烯基含量和苯乙烯含量适中,SSBR嵌段中乙烯基含量和苯乙烯含量较高,并且该嵌段共聚物还含有衍生自式I所示化合物的连接单元,部分SSBR嵌段通过连接单元与PI嵌段相连,剩余部分SSBR嵌段直接与所述PI嵌段相连,至少部分SSBR嵌段直接与SSBR嵌段相连。该共聚物橡胶在能获得良好的抗湿滑性能的同时,滚动阻力也显著降低,且具有较佳的综合物理机械性能,特别适合作为轮胎的胎面用胶。CH=CH‑R‑CH=CH(式I)。


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    Titel :

    Block copolymer, block copolymer composition, preparation method of block copolymer, vulcanized rubber, application of vulcanized rubber, tire tread and tire


    Weitere Titelangaben:

    嵌段共聚物和嵌段共聚物组合物及其制备方法和硫化橡胶及应用和轮胎胎面和轮胎


    Beteiligte:
    LI JIANCHENG (Autor:in) / ZHAO JIANGWEI (Autor:in) / SUN WEI (Autor:in) / TANG ZHENGWEI (Autor:in)

    Erscheinungsdatum :

    2020-04-28


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    C08F MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS , Makromolekulare Verbindungen, erhalten durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind / B60C VEHICLE TYRES , Fahrzeugreifen / C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen