Question

Elastomers are the materials which
(a) are not elastic at all
(b) have very small elastic range
(c) do not obey Hooke’s law
(d) None of these

Answer 1

Answer:

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Explanation:

Rubber-like solids with elastic properties are called elastomers. Polymer chains are held together in these materials by relatively weak intermolecular bonds, which permit the polymers to stretch in response to macroscopic stresses. Natural rubber, neoprene rubber, buna-s and buna-n are all examples of such elastomers.

Answer 2

Materials with a very small elastic range are called elastomers.

Elastomers:

• Viscoelasticity refers to the property of elastomers, which are polymers with both elasticity and viscosity.
• Elastomers typically have low Young's modulus, high yield strength, or high failure strain due to the weak intermolecular forces that hold their molecules together.

Here are some examples of elastomers and their uses for them:

• Natural rubber is used to create balloons, medical tubes, and adhesives, as well as in the automobile industry.
• In the textile business, polyurethanes are used to create elastic clothes like lycra.
• The wear resistance in vehicle wheels is provided by polybutadiene.
• Because silicone has such good chemical and thermal resistance, it is utilized to make lubricants and medical prostheses.

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