Understanding of the vehicle made the status quo of special rubber exhibition

As the automotive rubber parts used increasingly harsh conditions, many parts of rubber from rubber to switch to generic special rubber manufacturing, the auto industry will now use special rubber of the main varieties are as follows:
ACM
ACM (ACM) has excellent heat resistance, oil resistance, ozone resistance and thermal stability, and fluorine rubber, silicone rubber, its price is more modest, and the oil and heat-resistant thermal oxygen aging of excellent In the NBR, therefore, focus on the automobile industry has become in recent years to promote the development of a sealing material. The rubber in the car on the main oil seal used as a high temperature, hydraulic shock absorber unit and hose. The main products include sealing around the crankshaft oil seal, transmission oil seal, valve stem seals and oil seal bar, and so on.
China ACM device did not achieve economies of scale, the vast majority of devices in pre-production phase, production of ACM products in terms of quantity and quality can not meet all the requirements of the automotive industry, currently used in the production of auto parts are basically rely on the ACM Imports. According to projections, in 2005 China will be the amount of ACM to be 08,000 t, 2010 annual demand for 10,000 t, therefore, ACM is still in our efforts to the development of special varieties of rubber.
Fluorine Rubber
Fluorine Rubber (FKM) is a special vehicle in recent years, the amount of rubber in the fastest-growing types of plastic. FKM of the world's production capacity of 14,000 t / a, the annual output of about 7000t, of which 60% of the products for the car. The NBR rubber and compared with the excellent performance of high-temperature resistant variety of new fuel and fuel additive performance and stability of shape. FKM of the main engines for the stem seal, cylinder seals, sealing the clutch, sealing air filter, fuel pump and fuel sealed plastic inner tube, and so on. In order to meet the needs of the automotive industry in recent years abroad have developed a low-temperature-resistant flexible, the amount of fluoride is 30% to 40% of the phosphate fluoride Nitrile rubber, can be 280 ℃ under long-term use, as well as resistant to H2S-containing prominent Ether, such as rubber.
At present, production of around 400t, and basically be able to meet national needs, compared with foreign products, as foreign multi-brand varieties, the United States, Japan and other countries have more than 60 brands, tear strength, but also in the synthetic rubber when On the plus curing agent, which process performance, high-yield. In order to meet the changes in the structure of vehicle fuel, fluorine rubber new varieties have been developed, such as the United States 3M company successfully developed fuel-resistant (including 20% with liquefied petroleum gas and ethanol fuel) Flaorel 2182 fluorine FKM-542 rubber and fluorine rubber, and after On the stability of the high-pressure steam; Dowty Britain has developed a high-volume Fluorobon 97110 fluorine Fluorine Rubber, and its products can be -15 ℃ ~ 200 ℃ temperatures used for gasoline, aliphatic hydrocarbons, and ozone have a good stability.
EPDM
Ethylene-propylene rubber (EPDM) has excellent heat resistance, ozone resistance, electrical insulation and anti-aging, and easy to blend with the polyolefin plastic, has been widely used in auto parts, waterproofing membrane, wire and cable and plastic and many other modified领域. EPDM and butyl rubber inner tubes and car manufacturers, to extend the service life of inner tubes. Due to extensive use of the world total consumption of synthetic rubber, EPDM or about 7 percent of its consumption in the production of synthetic rubber in the third. In the automotive rubber, EPDM consumption is the largest species of gum, mainly manufacturing strip doors and windows closed, the radiator hose and other parts.
In the 1960s, China carried out on EPDM synthetic technology and application products, and built a kiloton test device industries, but relatively low level of technology, product quality, the product can not meet domestic needs, to rely on imports. At present, China has begun to EPDM in a variety of products applied. According to the information predicted that in 2005 China's demand for EPDM to 60,000 t, 2010-year forecast to 90,000 t.
HNBR
HNBR (HNBR) is to breast-butadiene rubber solution and the catalyst in the form of high-pressure hydrogenation. It is abroad in the mid-1980s successfully developed and put into mass production. This rubber is characterized by: heat resistance, peroxide vulcanizate 160 ℃ in the air can be used for more than 1,000 hours, and 150 ℃ in the NBR will lose value in a row; excellent oil resistance, oil resistance and mixed alcohol fuel Performance are significantly better than the NBR and the NBR with a mixture of PVC; cold resistance than NBR; ozone-resistant and aging-resistant properties of a variety of media (hot water, acids, alkalis, alcohol) outstanding performance; wear resistance and strength are good . HNBR due to the above-mentioned series of superior performance in the automotive rubber hand in an increasingly wide range of applications, the amount of the increase. The main purpose is the vehicle by the end of rubber timing belt, with the end of high-performance v plastic, a variety of automotive rubber inner tube and a touch of oil seals, and so on. Although the price of its more expensive (about 36 U.S. dollars / ks), but in high-performance products are still widely used. HNBR in the special rubber is the most promising types of rubber, mainly used in place of NBR, CR and the FKM, the demand will be increasing domestic consumption mainly depends on imports.
TPE
Thermoplastic elastomer (TPE) is a rapid development in recent years, a new type of polymer material, the amount of friction around the world in its growth rate is much higher than common varieties of rubber, TPE The reason is that both plastics and rubber dual identity, On the one hand, it is similar to the vulcanization of rubber elasticity, strength and deformation capacity, and on the other hand, similar to the processing of thermoplastic properties, which dispense with conventional vulcanized rubber vulcanization process of complex equipment, the province has the resources, energy production and efficiency Features, plus the waste can be recycled, and is conducive to environmental protection, so all countries on the development and application of TPE attach great importance to this. In the 1990s, foreign car TPE on the amount of growth in 1995, the amount of vehicle close to 10kg, rubber automotive parts account for 10% of the total volume. TPE in automotive applications is the largest on the seal, because of its EPDM and a similar performance, better than the tear strength and resistance EPDN. At the same time, TPE on the weight and lighter than EPDM, it is suitable for the automotive industry is currently made light of the goal. In addition, TPE in automotive hose Dust, a variety of washers, and protective bumper cover, and other parts are also widely used. According to data reported by Japan's Mitsubishi Motors TPE material Santoprene do tailgate wind than the rubber seal material cost savings of 5% to 10% and improve the utilization rate of recycling of materials and durability.
Domestic cars used on the set of universal joint protection is to use imported TPE materials (Santoprene) manufacturing, materials, the domestic research, but not the building of industrial installations. From the automobile industry and other sectors to meet the TPE on the growing need to be considered, it should be TPE plant construction. Synthetic rubber in the near future technology development center of the market research shows that, TPE has very good market prospects.
Silicone rubber
Silicone rubber (VMQ) has a good flexible enemy resistance, high temperature, cold resistance and anti-aging, and the price cheaper than the FKM, primarily for automotive camshaft, valve cover and Dike static sealing fuel tanks, all kinds of oil seals Pieces, O-ring, shock absorption and cushioning products. Is the automotive application of a more special synthetic rubber.
VMQ in the development of domestic production has done a great deal of work has been with a certain production capacity. China's 1999 production of silicone rubber for the 3800t. Domestic product of some foreign brands have reached the level of similar products, such as the need for the Sulfide second silicone rubber, silicone rubber high resistance to tear and a variety of rubber. Domestic products and foreign products, is structured to control the degree of difference. Special silicone rubber (fluorine silicon, phosphorus silicon, silicon nitrile) while maintaining the common silicone rubber excellent low-temperature high-performance, and increased oil and heat resistance, fluorine rubber processing performance, and foreign-cylinder car has been used to cover Liner and heat-resistant plastic inner tube, the domestic research and development needs of this species.