What are the uses of ethylene propylene rubber?
Because of the high strength, good flexibility, high gloss and easy recycling of thermoplastic three yuan EPDM rubber, EPDM/PP has been used as the main material in automobile bumpers and automobile dashboard production both at home and abroad. It is estimated that only two items of bumper and dashboard will be used in 2010, and the annual domestic consumption of EPDM/PP can reach 45 thousand tons. The main processes adopted for the recycling of these products are: first remove the coating of the product surface - grinding - Cleaning - re granulation - adding new materials to produce new products. Thus, a large amount of raw material can be saved and better economic benefits can be obtained in the production of the bumper and the dashboard. The ethylene propylene rubber used in the automotive industry accounts for 42%-44% of the total ethylene propylene rubber in China, excluding the ethylene propylene rubber used by ships, trains and container seals. Because the bonding properties of EPDM rubber is not good, in the tire industry in a large number of materials of tire body and the tread part to promote the use of ethylene propylene rubber, only in the inner tube, white wall, tire strip and other parts of the use of a small amount of ethylene propylene rubber.
Ethylene propylene rubber (EPR) is the most widely used automotive industry. It is mainly used in automobile seals, radiator hoses, spark plug sheaths, air conditioning hoses, rubber pads, hoses and so on. In the automotive sealing industry, mainly the use of EPDM, elastic characteristics of ozone resistance, weather resistance, EPDM rubber type ENB has become a main material of automobile rubber seal, domestic consumption has exceeded 10 thousand tons, but due to its variety, half rely on imports.
The ethylene propylene rubber has excellent water resistance, heat resistance and weather resistance, and convenient construction etc. Therefore, ethylene propylene rubber in the construction industry is mainly used for plastic playground, waterproof materials, housing seal doors and windows, glass curtain wall sealing, sanitary equipment and pipeline seal etc.. Ethylene propylene rubber in the construction industry, the largest amount of plastic sports field and waterproofing membrane, in terms of domestic consumption, has accounted for ethylene propylene rubber total amount of 26%-28%. A waterproof roll made of EPDM that has gradually replaced other materials (such as CMS), especially waterproof rolls used in underground structures.
In the electrical and electronic industries, the main use of ethylene propylene rubber excellent electrical insulation, weather resistance and corrosion resistance, in many electrical components used in this kind of rubber. For example, the production of cables with ethylene propylene rubber, especially submarine cables, is replaced by EPDM or EPDM/PP instead of PVC/NBR. The insulation performance and service life of cables have been greatly improved. In the transformer insulation pad, electronic insulation sheath is also a large number of ethylene propylene rubber production.Ethylene propylene rubber combined with other rubber is also a great field of ethylene propylene rubber applications. EPDM can be used in conjunction with other rubbers to improve performance and reduce costs. But due to various complex agents on the affinity of different polymers, covulcanization depends on the polymer crosslinking efficiency of different polymers and may not reach the molecular level compatible blend, but there were no phase separation system. The unequal distribution of complexing agents has a major impact on the properties of ethylene propylene and rubber.
