The specific gravity of the silicone strip
, the role of the sealing strip is to improve air tightness and prevent wind and rain from entering the car. In order to avoid the occurrence of the above, the sealing strip must be regularly maintained. 5. Due to its excellent physical and mechanical properties, It is often used to manufacture airplanes, cars, trains, passenger cars, ships, high and low voltage switch cabinets, glass curtain walls, aluminum alloy heat-insulating windows, sealing parts and diving products, high-pressure steam hoses, tunnels, viaduct joints and other waterproof parts and other industries , Agricultural sealing parts. Automobile product rubber formula and its preparation method and process Background technology: At present, the low temperature performance of rubber products used in automobiles on the market is generally around -25°C, but the rubber parts on automobiles cannot withstand cold air in a harsh climate. The airflow caused the product life to be greatly reduced. The performance of rubber products used in automobiles directly affects personal safety. For example, the recall of some of the cars sold by Toyota in the past few years caused serious reputational consequences. Therefore, all automobile manufacturers need a long-term stable performance. Adequately safe rubber products. The specific gravity of silicone strips. Energy-saving doors and windows are roughly composed of profiles, hardware, glass and EPDM door and window sealing strips, and several major modules of processing technology. Sealing strips have a lower cost due to their proportion, and some do not pay attention to energy-saving standards for doors and windows. The influence of traditional concepts has been ignored by many door and window manufacturers, but we cannot but admit that the sealing strip plays a vital role in the door and window system. What important role can the EPDM sealing strip play in the door and window system? . If your cracks are large or the aging degree is serious, then you don’t need to use the adhesive anymore. It is more convenient to replace with a new one. The replacement method is very simple, but in order to have a good effect, please ask a professional to update it. However, most people choose PVC material, so what should people pay attention to when buying sealing strips? First of all, put the product on your nose and smell it. If it is made of normal PVC material, it will have a little brewing smell, but the smell is very small, and it can hardly be smelled. All of the above characteristics are also the advantages of foam sealing strips. Through understanding, we can find that the reason why this product is popular in the market is because the product has many characteristics and advantages. The temperature in winter is very low. If a product such as a car seal is damaged, it is easy for air-conditioning to enter the car, and wind noise is also prone to appear. This sound feels like the door is not closed tightly, which will affect the comfort of the ride. . Technical realization factors: The technical problem to be solved by the present invention is to provide a rubber formula for automobile products and a preparation method thereof, which has good low-temperature performance, can withstand the attack of cold air in a local environment with relatively bad weather, and guarantees good performance. Ensure personal safety. Technical realization factors: The technical problem to be solved by the present invention is to provide a rubber formula for automobile products and a preparation method thereof, which has good low-temperature performance, can withstand the attack of cold air in a local environment with relatively bad weather, and guarantees good performance. Ensure personal safety. The specific gravity of silicone strips is not conducive to environmental protection because PVC products contain halogens and heavy metals in stabilizers. Therefore, developed foreign countries and domestic Beijing and coastal cities have eliminated or restricted the use of PVC strips. Low temperature elasticity and tensile capacity reach 100MPa. The temperature is -58. EPDM is a copolymer of ethylene, propylene and a small amount of third monomer non-conjugated diene. The international name: EthyienePropyeneDieneMethyiene is referred to as EPDM. Under normal circumstances, EPDM sealing strips can be used stably for more than ten years. With the continuous development and maturity of thermoplastic elastomer (TPE) technology, the application areas continue to expand. According to the classification of vulcanization (1) Discontinuous vulcanization (the extruded rubber strip
is After a certain length is cut, put it in a vulcanizing tank, and put the extruded semi-finished rubber strip into the model to vulcanize); (2) Continuous vulcanization method (microwave continuous vulcanization method, salt bath continuous vulcanization method, hot air continuous vulcanization method, etc.) Several methods). Second, after the sealing strip is damaged, it is easy for rainwater to enter the car. This phenomenon will cause damage to the car body, and it is easy to cause the car body to rust. From this point, we can see that the sealing strip is like this. Although the product is a small object, it is also an indispensable part for the car. When the car sealing strip is intact, it can effectively reduce the wind noise caused by high-speed driving, and it also improves the car’s air. Tightness and dust-proof effect, it can be seen that regular maintenance of the sealing strip is very important. Technical features: 1. An automobile product rubber, characterized in that the automobile product rubber is composed of EPDM, carbon black, softening oil, processing aids, and accelerators. 2. The automobile product rubber according to claim 1, wherein the automobile product rubber is calculated by weight ratio, the EPDM rubber is 100, the carbon black is 90, the softening oil is 20, and the processing aid is 15 , The accelerator is 5. 3. A preparation method of automobile product rubber formula, which is characterized in that it comprises the following steps: step one, put the EPDM rubber into the internal mixer, and the mixing temperature is controlled below 80 ℃ Mix for 2 minutes
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