Lexicon: E
Elastic deformation | What is elastic deformation?
In the case of elastic deformation, the material returns to its original shape completely once the stress is removed. Elastomers are usually composed of very long linear macromolecules, with their high elasticity being achieved through (a limited number of) cross-links between the different chains. This forms a network whose plasticity decreases as the number of cross-links increases. In the case of natural rubber, we refer to a vulcanisation process, as cross-linking occurs through heating with sulphur. Elastomers are highly elastic and have a high coefficient of friction. Examples of elastomers include: all synthetic rubbers, isoprene rubber, butadiene rubber, styrene-butadiene rubber (SBR), polyurethane rubbers and silicone elastomers.