Adhesive silicone strip
s, new types of thermoplastic elastomers, such as TPO and TPV, are increasingly used in automotive sealing strip
s. According to the type classification, D-type sealing strips are divided into large D-type, small D-type sealing strip, and P-type sealing strip. However, with the development of the automobile industry in recent years, a domestic-made Wonder double-sided adhesive has taken up a larger and larger market share. It overcomes the shortcomings of 3M adhesive construction that is not resistant to cold. The construction is simple and sticky. It is durable and overcomes the influence of the previous temperature on the life of the sealing strip! . 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 heat resistance, cold resistance, insulation, conductivity and flame retardancy of the adhesive silicone strip are very good. It can be used at 100-120℃ for a long time, and it can also be used for a long period of time at 140-150℃. It maintains effective physical properties within a short time and can withstand high temperatures of 230-260℃ in a short period of time. It can delay the effect of sudden accidents in urban buildings; plus the use of special formulas, the EPDM is at -50℃ to 150 ℃ feels similar, which creates high-efficiency work performance for production site installation. For car sealing strips, we must pay more attention to maintenance and master the correct maintenance method, otherwise the maintenance effect will not be achieved. Let us understand the importance of car sealing strip maintenance. The characteristics of the product The elasticity and compression resistance of the strip are very good, and it also has good resistance to aging, ozone and chemical effects, etc., making the product very strong and durable during use, and it is also very convenient to install of. Uses are mainly used in the door frame, side windows, front and rear windshield, engine cover and trunk cover, which play the role of waterproof, dustproof, sound insulation, temperature insulation, shock absorption, and decoration. The unique formula design makes three Ethylene propylene rubber sealing strip has excellent anti-aging, high and low temperature resistance and chemical resistance performance, has good elasticity and resistance to compression deformation, and will not crack or deform after long-term use. It is between -50 degrees and 120 degrees. It can maintain its original high sealing performance. 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 'professional' adhesive silicone rubber sealing strip originated from Germany and has been popular in the European market for a long time. It is famous for its environmentally friendly sealing performance. PVC sealing strip vendors have made great efforts in the use of fillers. Some manufacturers are pursuing more Large output, (saving a little electricity) using talcum powder, heavy calcium and the like as fillers, greatly increasing the specific gravity of the sealing strip products (our users generally buy by kilograms and use them by length) so invisible Instead, it has increased the cost and seriously reduced the quality. Because PVC products contain halogens and heavy metals in stabilizers, they are not conducive to environmental protection. Therefore, developed foreign countries and domestic Beijing and coastal cities have eliminated or restricted the use of PVC strips, low temperature elasticity, and the temperature when the tensile capacity reaches 100MPa is -58 , EPDM rubber 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. Among them, metal-rubber composite sealing strips account for more than 60%. For rubber sealing strips, the cross-sectional design is very important. The first is the shape and size of the sealing lip. The sealing lips on both sides should be removed from the car with the same and appropriate force. The two sides of the window glass are in contact with the glass. Check regularly for cracks and breaks. If you find that the sealing strip is broken, you can find an adhesive to repair it. The adhesive here is for special use. It is bonded so that it is not difficult to repair the cracks. 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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