High-performance polyurethane elastomer for high-resilience motor car seat and preparation method of high-performance polyurethane elastomer

By combining polyether polyols and nanofillers, a porous structure and cross-linked network are formed, which solves the problems of polyurethane elastomers used in high-speed train seats collapsing under high pressure and having poor resistance to damp heat. This results in improved resilience, resistance to compression deformation and tear resistance, thus enhancing the comfort and service life of high-speed train seats.

CN122404952APending Publication Date: 2026-07-17青岛三禾环保科技有限公司
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Patent Information

Application Number
CN202610505629.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-04-16
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing polyurethane elastomers used in high-speed train seats are prone to collapse under high pressure, have poor resistance to damp heat, affecting their service life, and lack tear resistance.

Method used

By combining polyether polyols, nanofillers, and nanolinkers, a porous structure and cross-linked network are formed, which improves resilience, resistance to compression deformation, and resistance to damp heat. Modified zirconium phosphate and mesoporous silica are used as heterogeneous nucleating agents to enhance cell stability, and plasticizers and stabilizers are added to improve tear resistance.

Benefits of technology

The prepared polyurethane elastomer has high resilience, good cushioning, excellent resistance to compression deformation and resistance to damp heat, which significantly improves the riding comfort and service life of high-speed train seats.

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Abstract

The invention relates to the field of polyurethane foaming materials, and particularly discloses a high-performance polyurethane elastomer for a high-resilience bullet train seat and a preparation method of the high-performance polyurethane elastomer for the high-resilience bullet train seat. Comprising 60-80 parts of polyether polyol, 40-60 parts of a curing agent, 1-2 parts of a foaming agent, 0.5-1 part of a catalyst, 3-6 parts of a chain extender, 1-2 parts of a plasticizer, 0.5-1 part of a stabilizer, 2-6 parts of a nano filler, 1-4 parts of a nano binder and 1-2 parts of a flame retardant. The preparation method comprises the following steps: uniformly mixing the polyether polyol, the nano binder, the nano filler and the flame retardant, then adding the plasticizer, the chain extender and the stabilizer, uniformly mixing and stirring, finally adding the foaming agent and the catalyst, uniformly mixing, and defoaming to obtain a mixture; uniformly mixing the mixture with a curing agent, pouring into a mold, and curing to obtain a finished product. The rubber has the advantages of being good in rebound resilience, compression deformation resistance, heat and humidity resistance and tear resistance.
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