Etheleenpropüleenkummi

Etheleenpropüleenkummi, also known as EPM or EPDM rubber, is a synthetic elastomer. It is a terpolymer, meaning it is composed of three different monomers: ethylene, propylene, and a diene. The presence of the diene monomer allows for vulcanization, a process that cross-links the polymer chains, giving the rubber its characteristic elasticity and strength. EPM is known for its excellent resistance to weathering, ozone, UV radiation, and heat. It also exhibits good electrical insulation properties and is resistant to many chemicals, including polar solvents and dilute acids and alkalis.

The production of EPM involves free-radical polymerization. The specific properties of the resulting rubber can be tailored by adjusting the ratios of the three monomers and the type of diene used. EPM finds widespread applications in various industries due to its durability and resistance properties. It is commonly used in the automotive industry for weatherstripping, hoses, and seals. It is also employed in the construction sector for roofing membranes, window seals, and expansion joints. Furthermore, EPM is utilized in electrical insulation, cable jacketing, and in the manufacturing of various industrial products requiring resilience and environmental resistance. Its ability to withstand harsh conditions makes it a versatile material for demanding applications.