The invention provides a polyurethane high-speed tire with high compression resistance and bearing capacity. The polyurethane high-speed tire comprises the following components: 60-90 parts of polyol; 5-10 parts of POE resin; 3-5 parts of a cross-linking agent; 1-1.5 parts of sodium abietate; 2-4 parts of a catalyst; 10-15 parts of diphenylmethane diisocyanate; and 2-6 parts of a stabilizer; wherein the polyol comprises polyester polyol and polyether polyol, the molecular weight of the polyester polyol is 3200-3600, the polyester polyol is obtained by condensing glutaric acid and trimethylolpropane, and the hydroxyl value of the polyester polyol is 360-400 mgKOH/g. According to the polyurethane high-speed tire with the high compression resistance and bearing capacity, the tetrafluoroethylene-hexafluoropropylene-perfluoroalkyl vinyl ether copolymer is added, so that the wear resistance and weather resistance of the polyurethane tire are improved, and the internal toughness of polyurethane can be obviously improved, so that the strength of the polyurethane tire in a severe environment for a long time is improved; the boron oxide and (Mo, W) Si2 improve the toughness of polyurethane, so that the tire has higher compressive bearing strength.
本发明提供一种抗压承重能力强的聚氨酯高速轮胎,聚氨酯高速轮胎包括以下组分:多元醇60‑90份;POE树脂5‑10份;交联剂3‑5份;松香酸钠1‑1.5份;催化剂2‑4份;二苯基甲烷二异氰酸酯10‑15份;稳定剂2‑6份;多元醇包括聚酯多元醇和聚醚多元醇,所述聚酯多元醇的分子量为3200‑3600,聚酯多元醇由戊二酸与三羟甲基丙烷缩合得到,羟值为360‑400mgKOH/g。本发明的抗压承重能力强的聚氨酯高速轮胎,通过加入四氟乙烯‑六氟丙烯‑全氟烷基乙烯基醚共聚物,提高聚氨酯轮胎的耐磨性能、耐候能力,并可明显改善聚氨酯内部的韧性,从而提高其长期处于恶劣环境下的强度;氧化硼和(Mo,W)Si2提高聚氨酯的韧性,使得其具有更高的抗压承重强度。
Polyurethane high-speed tire with high compression resistance and bearing capacity
一种抗压承重能力强的聚氨酯高速轮胎
2021-09-17
Patent
Electronic Resource
Chinese
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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