Project Report on EPDM Rubber Profiles [Eiri-1492]

Ethylene Propylene Diene Monomer Rubber, also named as EPDM in short, is the polymer of ethylene and propylene. Large scale commercial production began in 1963 and the current overall global consumption of EFPM are 800,000 tons per year. EPDM is polyolefine - categorized and has excellent performance of vulcanization and its gravity is the lowest among all rubbers. These are radon copolymers of the two hydrocarbons ethylene and propylene with the ethylene varying from 40 to 70% by weight. This produces a saturated rubber, EPM, which has to be vulcanized with peroxide systems. Small quantities of a third monomer are, therefore added to produce ethylene-propylene terpolymers (EPDM) which can be vulcanized with sulphur in the usual way. Both types have outstanding resistance to sunlight, ozone and all forms of aging and weathering; together with a capacity to accept large loadings of extender oil and fillers without undue loss of physical properties. So far, their use in tyres has been limited mainly due to processing difficulties, although blends with up to 20% of EPDM have been successfully adopted by some manufacturers, particularly for sidewalls. Recent developments indicate more extensive use of EPDM in tyres. Non-tyre applications for EPDM include automobile components, roller coverings, acid hose, general building applications, reservoir linings and roofing sheet. Another important application for EPM and EPDM is in electric cable insulation. EPDM (Ethylene Propylene Diene Monomer) Rubber has outstanding resistance to aging, weathering, ozone, oxygen and many chemicals. It offers excellent high and low temperature stability, plus steam and water resistance. In general, EPDM has dynamic and mechanical properties between natural rubber and SBR.