eteenipropyleenikumin

Eteenipropyleenikumi, often abbreviated as EPDM, is a synthetic rubber belonging to the class of saturated elastomers. Its chemical structure consists of ethylene and propylene monomers, along with a small amount of a diene monomer. This specific composition grants EPDM rubber its distinctive properties, most notably its excellent resistance to weathering, ozone, and UV radiation.

The saturated backbone of the EPDM polymer chain contributes to its durability and longevity in outdoor applications. Unlike unsaturated rubbers, EPDM is not susceptible to degradation caused by exposure to sunlight or atmospheric oxygen. This makes it a preferred material for seals, roofing membranes, hoses, and automotive components that are frequently exposed to the elements.

Furthermore, EPDM exhibits good thermal stability, performing well over a wide temperature range. It also possesses good electrical insulation properties and resistance to steam, water, and various chemicals, including polar solvents. However, it generally has poor resistance to petroleum-based oils and hydrocarbon solvents. EPDM can be compounded to achieve a range of physical properties, including flexibility, hardness, and tensile strength, making it a versatile material for diverse industrial and consumer applications. Its ease of processing and cost-effectiveness further contribute to its widespread use.