The invention relates to the technical field of tire rubber manufacturing, and discloses a sidewall rubber composition containing modified lignin and a mixing method thereof, and the rubber composition is added with modified lignin. The modified lignin is water-soluble lignin obtained by modifying lignin by grafting citric acid groups. Citric acid is adopted to modify lignin, a citric acid group is grafted on a lignin group under the catalytic action of sodium hypophosphite to enhance the hydrophilicity of the lignin group, and wet mixing is effectively combined, so that the dispersity of the lignin in rubber is improved, and the mixing condition after carbon black is replaced by the lignin is improved.

    本发明涉及轮胎橡胶制造技术领域,公开了一种含改性木质素的胎侧橡胶组合物及其混炼方法,该橡胶组合物中添加了改性木质素。所述改性木质素是木质素经接枝柠檬酸基团改性得到的水溶性木质素。采用柠檬酸对木质素进行改性,在次磷酸纳的催化作用下在木质素基团上接枝柠檬酸基团增强其亲水性,并结合湿法混炼有效,提高木质素在橡胶中的分散性,改善木质素替换炭黑后的混炼情况。


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    Titel :

    Sidewall rubber composition containing modified lignin and mixing method thereof


    Weitere Titelangaben:

    一种含改性木质素的胎侧橡胶组合物及其混炼方法


    Beteiligte:
    LU XIAOQI (Autor:in) / WANG CHAO (Autor:in) / CHEN LI (Autor:in) / HUANG DAYE (Autor:in) / LIU HUI (Autor:in) / WANG DANLING (Autor:in)

    Erscheinungsdatum :

    25.04.2025


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    C08H DERIVATIVES OF NATURAL MACROMOLECULAR COMPOUNDS , Derivate von natürlichen makromolekularen Verbindungen / B60C VEHICLE TYRES , Fahrzeugreifen / C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen / 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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