Question

Which of the following is an example of fibre polymer?
(A) Rubber
(B) Nylon-6,6
(C) PVC
(D) Bakelite

Answer 1

Hint: Fibre polymers can be defined as the thin thread that forms solids. They are highly tensile and have high modulus.

Complete step-by-step solution: Polymer fibres can be termed as a subset of man-made fibres, as they are prepared synthetically by using chemicals (petrochemical sources). They cannot be obtained from natural sources by physical processes. A fibre can be defined as a thin thread of a natural or artificial substance. In order to answer this question, we need to consider each option available, one by one.
The first option is rubber, which is an elastomer. It possesses both the property of viscosity and elasticity. The intermolecular forces between its molecules are weak and the young’s modulus for it is also very low.
Nylon-6, 6 is a form of nylon fibre. It is prepared by using two monomers, having 6 carbon atoms each, hexamethylenediamine and adipic acid and hence it got its name.
PVC or polyvinyl chloride is an example of plastic polymer. It is a thermoplastic polymer that means, when heated above a specific temperature, it can be molded in different shapes and it solidifies on cooling.
It has got a wide range of applications in fields of transport, packaging, electrical and healthcare.
Bakelite was the first plastic that had been composed using synthetic components. It is basically a thermosetting resin, which is formed on condensation reaction of phenol with formaldehyde.

So, the correct option is B.

Note: A thermosetting polymer is also termed as thermoset. These are stronger than thermoplastic materials. This is because of their three-dimensional cross linkage. These materials undergo permanent deformation, when applied load.