The invention provides a polyurethane tire with high wear resistance and aging resistance. The polyurethane tire comprises a component A and a component B. The mass ratio of the component A to the component B is 1:(0.8-1.2). The component A comprises the following components in parts by weight: 60-90 parts of polyol; 6-12 parts of a chain extender; 3-5 parts of a cross-linking agent; 1-1.5 parts of a foaming agent; and 2-4 parts of a catalyst. The component B is prepared from the following component: 15 to 20 parts of isocyanate; 3 to 5 parts of tetrahydrofuran propylene oxide copolymerized glycol; and 0.8 to 1.2 parts of a stabilizer. The molecular weight of the polyhydric alcohol is 2200-2800, the polyhydric alcohol is obtained by condensing halogenated phthalic acid and diethylene glycol, and the hydroxyl value of the polyhydric alcohol is 360-400 mgKOH/g. According to the high-wear-resistance and anti-aging polyurethane tire disclosed by the invention, the citric acid, the 2,6-tert-butyl-4-methylphenol and the ammonium sulfate are used as stabilizers and have good compatibility with the polyhydric alcohols and the isocyanate and a coupling effect with the polyhydric alcohols, so that the polyurethane resin is uniformly plasticized during processing, the plasticizing temperature is low, and the impact resistance of the polyurethane tire is relatively good.

    本发明提供一种高耐磨、抗老化的聚氨酯轮胎,高耐磨、抗老化的聚氨酯轮胎包括A组分和B组分,A组分和B组分的质量比为1:0.8‑1.2,按重量份计,A组分包括以下组分:多元醇60‑90份;扩链剂6‑12份;交联剂3‑5份;发泡剂1‑1.5份;催化剂2‑4份;B组分包括以下组分:异氰酸酯15‑20份;四氢呋喃氧化丙烯共聚二醇3‑5份;稳定剂0.8‑1.2份;多元醇的分子量为2200‑2800,由卤代苯二甲酸与一缩二乙二醇缩合得到,羟值为360‑400mgKOH/g。本发明的高耐磨、抗老化的聚氨酯轮胎,柠檬酸、2,6‑三级丁基‑4‑甲基苯酚和硫酸铵作为稳定剂,与多元醇和异氰酸酯的良好的相容性以及与多元醇的偶联作用,使聚氨酯树脂在加工中塑化均匀,塑化温度低,聚氨酯轮胎的耐冲击性能较好。


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    Title :

    Polyurethane tire with high wear resistance and aging resistance


    Additional title:

    一种高耐磨、抗老化的聚氨酯轮胎


    Contributors:
    HONG RUPIN (author)

    Publication date :

    2021-10-19


    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 / C08J Verarbeitung , WORKING-UP / 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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