The invention provides a heat-resistant polyurethane composition for tire filling as well as a preparation method and application of the heat-resistant polyurethane composition for tire filling, and the heat-resistant polyurethane composition for tire filling comprises a component A and a component B in parts by weight, the component A is prepared from the following raw materials in parts by weight: 30-40 parts of polycaprolactone polyol, 1-6 parts of a crosslinking reinforcing agent, 2-6 parts of micromolecular polyamine and 30-55 parts of a high-boiling-point plasticizer; the component B is prepared from the following raw materials in parts by weight: 30 to 40 parts of polycaprolactone polyol, 30 to 60 parts of a high-boiling-point plasticizer and 10 to 20 parts of isocyanate. The polyurethane composition provided by the invention has the advantages of good fluidity, simple operation, low rolling internal heat generation and good heat resistance, and can be used for engineering vehicles running at high speed.

    本发明提供一种轮胎填充用耐热聚氨酯组合物及其制备方法和应用,所述轮胎填充用耐热聚氨酯组合物包括A组分和B组分,以重量份计,所述A组分的制备原料包括如下组分:聚己内酯多元醇30‑40份、交联补强剂1‑6份、小分子多元胺2‑6份、高沸点增塑剂30‑55份;以重量份计,所述B组分的制备原料包括如下组分:聚己内酯多元醇30‑40份、高沸点增塑剂30‑60份、异氰酸酯10‑20份。本发明的聚氨酯组合物,具有流动性好,操作简单,滚动内生热低,耐热性好,可以用于高速行驶的工程车辆。


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    Title :

    Heat-resistant polyurethane composition for tire filling as well as preparation method and application of heat-resistant polyurethane composition


    Additional title:

    一种轮胎填充用耐热聚氨酯组合物及其制备方法和应用


    Contributors:
    QIAN JIANZHONG (author) / WANG LECHUN (author) / YAN YIFAN (author) / JI YU (author)

    Publication date :

    2025-05-30


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60C VEHICLE TYRES , Fahrzeugreifen / C08G MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS , Makromolekulare Verbindungen, anders erhalten als durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind / 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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