With the continuous development of the automotive industry, the requirements for automotive rubber sealing materials are also increasing. Traditional rubber sealing materials have been unable to meet the needs of modern vehicles for high performance, high durability and environmental protection. Therefore, the product structure and application of new automotive rubber sealing materials have become the focus of current research.
First. the type of new rubber sealing materials for vehicles
1. Silicone rubber sealing material
Silicone rubber has excellent high temperature resistance, oxidation resistance, corrosion resistance and other properties, is widely used in automotive engine, chassis, electrical system and other parts of the seal. Silicone rubber sealing materials can be divided into room temperature vulcanized silicone rubber and hot vulcanized silicone rubber, of which room temperature vulcanized silicone rubber has better bonding properties and filling properties, and hot vulcanized silicone rubber has better high temperature resistance and mechanical strength.
2. Fluorine rubber sealing material
Fluorine rubber have excellent high temperature resistance, oxidation resistance, corrosion resistance and other properties, as well as good electrical insulation and weather aging resistance, and are widely used in automotive electrical systems, engines, transmission systems and other parts of the seal. Fluorine rubber sealing materials can be divided into perfluorinated rubber rubber and semi-fluorine rubber, of which perfluorinated rubber has better high temperature resistance and chemical stability, semi-fluorine rubber has better mechanical strength and processing properties.
3. Acrylic rubber sealing material
Acrylic rubber has excellent oil and chemical resistance, as well as good electrical properties and high temperature resistance, and is widely used in the sealing of automotive engines, transmission systems and other parts. Acrylic rubber sealing materials can be divided into saturated type and unsaturated type, of which saturated type has better high temperature resistance and chemical stability, unsaturated type has better mechanical strength and processing performance.
Second. the product structure of new automotive rubber sealing materials
The product structure of the new automotive rubber sealing material mainly includes the base material, tackifier, reinforcing agent, filler and protective agent. Among them, the substrate is the basis of the sealing material, the tackifier can improve the bonding performance and filling performance of the material, the reinforcing agent can improve the strength and wear resistance of the material, the filler can improve the processing performance of the material and reduce the cost, and the protective agent can improve the weather resistance and chemical resistance of the material.
Third. the application of new rubber sealing materials for vehicles
The new automotive rubber sealing material is mainly used in the automotive engine, chassis, electrical system and other parts, to seal, shock absorption, sound insulation and other functions. For example, in the automotive engine parts, silicone rubber sealing materials can effectively seal oil, cooling water and other liquids to ensure the normal operation of the engine; In the chassis of the car, the fluorine rubber sealing material can effectively prevent dust and moisture from entering the car, improve the comfort and safety of the cab; In the automotive electrical system, the acrylic rubber sealing material can effectively prevent current leakage and external interference to ensure the stability and safety of the electrical system.
In short, the product structure and application of new automotive rubber sealing materials is one of the hot spots in the field of automotive industry. Through continuous research and improvement, it is believed that there will be more high-performance, high-durability and environmentally friendly automotive rubber sealing materials in the future, and make greater contributions to the development of the automotive industry.
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