elastomerische

Elastomerische is the German adjective describing materials or properties characteristic of elastomers, i.e., polymers with rubber-like elasticity. In English, the corresponding term is elastomeric. Elastomerische materials are capable of large reversible deformations and recover their original shape when the load is removed. They typically exhibit a low glass transition temperature and a low modulus at ambient conditions, giving high elasticity with viscoelastic behavior.

The essential feature of elastomeric polymers is a network structure formed by long chains that are loosely crosslinked, allowing segments to uncoil and stretch under stress. Crosslinking, often achieved by vulcanization or other curing methods, creates a three-dimensional network that improves elasticity, chemical resistance, and thermal stability. The balance between crosslink density and chain mobility determines properties such as elasticity, hardness, and tensile strength.

Common elastomeric polymers include natural rubber (polyisoprene), styrene-butadiene rubber, polybutadiene, nitrile rubber (NBR), EPDM, silicone elastomers (polydimethylsiloxane), and polyurethane elastomers. Fillers like carbon black or silica are frequently added to tailor mechanical properties and durability.

Applications of elastomerische materials span seals and gaskets, vibration dampers, hoses, tires, medical devices, and flexible coatings. Performance depends on temperature, aging, ozone resistance, and chemical exposure, with the working temperature range largely governed by the material’s glass transition and chemical composition. Processing typically involves compounding, shaping, and curing to achieve the desired network structure.

Standards for characterization cover hardness, tensile properties, and dynamic mechanical behavior. The term elastomerische is widely used in German technical literature to denote rubber-like, highly elastic polymers and products.