What are elastomers with example?

3.6. Elastomers are loosely cross-linked polymers. Examples of elastomers include natural rubbers, styrene-butadiene block copolymers, polyisoprene, polybutadiene, ethylene propylene rubber, ethylene propylene diene rubber, silicone elastomers, fluoroelastomers, polyurethane elastomers, and nitrile rubbers.

What are elastomers in simple words?

Elastomer is a material, usually a synthetic rubber or plastic, that has elastic mechanical properties. The high resilience, low heat build-up, and excellent dynamic properties of elastomer make it an ideal rubber for automotive tires.

What are types of elastomers?

Four common elastomers are cis-polyisoprene (natural rubber, NR), cis-polybutadiene (butadiene rubber, BR), styrene-butadiene rubber (SBR), and ethylene-propylene monomer (EPM).

What are elastomers Class 11?

An elastomer is a polymer with viscoelasticity (i.e., both viscosity and elasticity) and has very weak intermolecular forces, generally low Young’s modulus and high failure strain compared with other materials. IUPAC defines the term “elastomer” by “Polymer that displays rubber-like elasticity.”

What is elastomers and its uses?

Primary uses for elastomer are seals, molded flexible parts and adhesives and used in vehicle manufacturing, food production, scientific applications and chemical processes. Polyurethanes are used for electrical potting compounds, spandex fibers, carpet underlay, gaskets, seals and flexible foam seating.

What are elastomers give different examples and their uses?

Following are the examples of elastomers with their applications:

• Natural rubber: These are used in the automotive industry and in the manufacture of medical tubes, balloons, adhesives.
• Polyurethanes: These are used in the textile industry for manufacturing elastic clothing like lycra.

What are uses of elastomers?

Elastomer are used for rubber tires and tubes for vehicles, motorcycles, bicycles and recreational vehicles, lawn mowers and other yard work vehicles, belts, hoses, gloves, matting, toy balloons, rubber bands, adhesives and pencil erasers.

What is an elastomer impression?

Elastomeric impression materials are in common use. The impression material is inserted into the patient’s mouth in a viscous state and transforms into viscoelastic state, upon withdrawal, influencing the residual deformation. The requirements are minimal residual deformation or maximal elastic recovery.

What are elastomers in chemistry class 12?

Elastomers are synthetic rubber. In these elastomeric polymers, the polymer chains are held together by the weakest intermolecular forces. These weak binding forces permit the polymer to be stretched.

What are elastomers made?

Consumer products: Many consumer items are made with elastomeric materials, including raincoats, sponges and even pencil erasers. Many durable yet stretchy materials are also made with some type of elastomer-based textile. Footwear: Elastomers are extensively used in footwear applications.

What is an elastomer what are their special features?

Elastomers (rubbers) are special polymers that are very elastic. They are lightly cross-linked and amorphous with a glass transition temperature well below room temperature. Thus, elastomers have a low Young’s modulus and very high elongation at break when compared with other polymers.

What is an elastomer and what are common properties of elastomers?

What are Elastomers? Elastomers are polymers that are having a viscosity as well as elasticity and therefore are known as viscoelasticity. The molecules of elastomers held together by weak intermolecular forces, generally they exhibit low Young’s modulus and high yield strength or high failure strain.