Automobile mud guard and method for manufacturing the same

By using modified hollow glass microspheres and basalt fibers in automobile mudguards, combined with polyolefin elastomers and maleic anhydride-grafted polypropylene, the problems of material brittleness, increased noise, and mud and water adhesion in existing mudguards under high-speed driving and harsh road conditions have been solved, achieving a comprehensive improvement in lightweight, stone impact resistance, and mud and water adhesion resistance.

CN122404852APending Publication Date: 2026-07-17LONGKOU TONGLI HOME ELECTRIC APPLIANCE AUTO PARTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
LONGKOU TONGLI HOME ELECTRIC APPLIANCE AUTO PARTS CO LTD
Filing Date
2026-06-05
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing automotive mudguards are prone to localized material cracking, increased noise, and mud accumulation due to gravel impact and mud adhesion under high-speed driving or harsh road conditions, affecting vehicle driving comfort and component durability. Existing improvement methods cannot simultaneously achieve multiple properties such as lightweight, stone impact resistance, low-temperature toughness, and mud adhesion resistance.

Method used

Using polypropylene as the matrix, modified hollow glass microspheres and modified basalt fibers are prepared through co-precipitation reaction and surface modification treatment to enhance the impact resistance and anti-adhesion ability of the material. The interfacial bonding strength is improved by grafting polyolefin elastomer and maleic anhydride onto polypropylene, and the material properties are improved by combining nano-silica, carbon black and lubricant.

Benefits of technology

It achieves lightweight, low-temperature impact resistance, stone chip resistance, and mud and water adhesion resistance in automotive mudguards, reduces mud residue, and improves the long-term durability and noise reduction effect of the material.

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Abstract

本发明公开了一种汽车挡泥轮罩及其制备方法,属于聚丙烯材料技术领域。所述汽车挡泥轮罩包括以下重量份数的原料:聚丙烯50‑70份、聚烯烃弹性体10‑20份、马来酸酐接枝聚丙烯3‑8份、改性空心玻璃微珠8‑10份、改性玄武岩纤维5‑8份、滑石粉8‑12份、纳米二氧化硅0.5‑2份、炭黑0.5‑1.5份、抗氧剂0.3‑1.0份、紫外吸收剂0.5‑1.2份和润滑剂0.3‑0.8份。本发明制备的汽车挡泥轮罩具有良好的轻量化、低温抗冲击、抗石击、抗泥水附着等性能。
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