The invention discloses a structure-optimized compression-resistant wear-resistant polyurethane trundle and a preparation method thereof, and relates to the technical field of mobile devices. The polyurethane comprises the following components in percentage by weight: 10-20% of low-molecular-weight polyether, 20 to 30% of toluene diisocynate; 10 to 20% of trimethylolpropane; 3-6% of a dimethyl formamide solvent; 5-6% of phosphoric acid; 1-3% of a tertiary amine catalyst; 1-3% of organic acid; 1 to 2% of isocyanate; 1-2% of active hydrogen and 3-5% of silicone; the structure-optimized compression-resistant and wear-resistant polyurethane trundle comprises a trundle body and a connecting damping device, the surfaces of one sides of two first push plates are connected with the outer surface of a universal shaft, and the surfaces of one sides of two second push plates are connected with the outer surface of a fixing column; and the polyurethane is wide in hardness range, high in strength and high in plasticity, when the polyurethane is applied to the trundle, the trundle has better wear resistance and strength, the service life of the trundle is greatly prolonged, the trundle suitable for different conditions can be produced by adjusting different formulas, the requirements of different users are met, and the trundle is worthy of popularization.

    本发明公开了一种结构优化抗压耐磨聚氨酯脚轮及其制备方法,涉及移动装置技术领域。本发明中聚氨酯所含成分的百分比含量分别为低分子量聚醚10‑20%;甲苯二异氰酸酯20‑30%;三羟甲基丙烷10‑20%;二甲基甲酰胺溶剂3‑6%;磷酸5‑6%;叔胺催化剂1‑3%;有机酸1‑3%;异氰酸酯1‑2%;活泼氢1‑2%和有机硅3‑5%,本发明中一种结构优化抗压耐磨聚氨酯脚轮,包括轮子主体以及连接减震装置,两个第一推板一侧表面均与万向轴外表面连接,两个第二推板一侧表面均与固定柱外表面连接,本发明的聚氨酯硬度范围宽且强度高,可塑性强,应用在脚轮上时使脚轮具有更好的耐磨性及强度,极大的延长脚轮的使用寿命,通过不同配方的调整可以生产出不同情况下适用的脚轮,满足不同用户要求,值得推广。


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    Title :

    Structure-optimized compression-resistant wear-resistant polyurethane trundle and preparation method thereof


    Additional title:

    一种结构优化抗压耐磨聚氨酯脚轮及其制备方法


    Contributors:

    Publication date :

    2021-04-30


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen / B60B VEHICLE WHEELS , Räder für Fahrzeuge / 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



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