The weakest inter-particle forces are present in elastomers. These weak binding forces permit the polymer to be stretched
Elastomer is a rubbery material composed of long chainlike molecules, or polymers, that possess the ability to return to their original shape after being stretched, even to great extents. Compared to various materials, elastomers have a high failure/yield strain. They are amorphous when they exist above their glass transition temperature.
TYPES OF ELASTOMERS
There are two primary categories for elastomers:
- Unsaturated: Sulphur and non-sulfur vulcanization can cure unsaturated elastomers like polybutadiene, chloroprene rubber, butyl rubber, nitrile rubber, synthetic polyisoprene and others.
- Saturated: Saturated elastomers — like polyacrylic rubber, silicone rubber, polyether block amides, ethylene-vinyl acetate.
- Thermoset elastomers are much more resistant to melting, making them valuable in motor vehicles for tires, certain seals throughout the automobile’s design.
- Industrial products and tools often contain or require various elastomers, such as neoprene used in industrial belts etc.
- Elastomers like neoprene are highly heat-resistant and easily elongated, which makes them perfect for wire insulation.