Wear-resistant and anti-aging automobile sealing strip and preparation method thereof

Abstract

The invention provides a wear-resistant and anti-aging automobile sealing strip. The wear-resistant and anti-aging automobile sealing strip comprises a sealing strip supporting body and a wear-resistant and anti-aging layer, the sealing strip supporting body comprises the following raw materials in parts by weight:100-120 parts of ethylene propylene diene monomer, 10-20 parts of glass fiber, 10-28parts of glass fiber, 10-25 parts of carbon fiber reinforced polyurethane, 2-6 parts of calcium carbonate, 1-3 parts of zinc oxide, 15-30 parts of isopropanol, 2-4 parts of stearic acid, 2-5 parts ofnano silicon dioxide, 0.1-1 part of an anti-aging agent, 1-3 parts of a compatilizer, 0.1-1 part of an accelerant, 0.5-3 parts of a silane coupling agent and 1-3 parts of sulfur powder. The wear-resistant anti-aging layer is prepared from the following raw materials in parts by weight: 15-20 parts of superfine polytetrafluoroethylene, 2-7 parts of aluminum oxide, 7-10 parts of sodium polystyrenesulfonate, 45-50 parts of a solvent, 1-3 parts of an anti-aging agent and 0.5-1 part of an inorganic pigment. The automobile sealing strip is resistant to abrasion and aging, the preparation method issimple, and the cost is low.

Description

technical field [0001] The invention belongs to the field of polymer materials, and in particular relates to a wear-resistant and anti-aging automobile sealing strip and a preparation method thereof. Background technique [0002] Automobile sealing strip is one of the important parts of the automobile. It has the function of filling various gaps and gaps between the components of the car body. It has the functions of shock absorption, waterproof, dustproof, sound insulation, decoration, etc., and improves the comfort and protection of the driving experience. bodywork. According to the classification of materials, it can be divided into rubber sealing strips, plastic sealing strips and thermoplastic elastomer sealing strips. Automotive rubber sealing strips are prone to deformation and aging during long-term use, and repeated use of friction will cause them to be worn. These phenomena seriously affect the sealing performance, shock absorption performance and service life of ...

AI Technical Summary

Problems solved by technology

Automotive rubber sealing strips are prone to deformation and aging during long-term use. Repeated use of friction will cause them to be worn. These phenomena seriously affect the sealing performance, shock absorption performance and service life of the sealing strip.

[0003] Therefore, with the continuous development of science and technology, the automotive industry has higher and higher technical requirements for automotive sealing strips, not only requiring high sealing performance, but also requiring products to have properties such as wear resistance, aging resistance, and flame retardancy. However, Existing automobile sealing strips have not effectively overcome the requirements of long-term use to make them damaged, deformed and aging