Question

Which polymer is used to prepare fishing nets?
(A) Nylon-66
(B) Nylon-6
(C) Terylene
(D) Butyl rubber

Answer 1

Hint :The preparation of fishing nets needs a material which should be easy to maintain, light weight, easy to carry, cheaper and should be very strong and should have tensile strength as they should hold large weight without breaking and should not easily reacts with oils or chemicals as they should be submerged in water.

Complete Step By Step Answer:
Nylon-6 has all these qualities and is the best synthetic fibre for the preparation of fishing nets. Let us know a few things about nylon-6.
Nylon-6 is formed by ring-opening polymerization. The nylon-6 amide bonds lie in the same direction and nylon-6 is made from caprolactam monomer having six carbon atoms.
Nylon-6 is synthesized by ring opening polymerization of caprolactam. Caprolactam has 6 carbons, hence the name nylon-6. Nylon-6 fibres are tough, possessing high tensile strength, elasticity and lustre. They are wrinkle proof and highly resistant to abrasion and chemicals such as acids and alkalis.
Nylon-6 is an ideal choice of material for fishing filament applications. Fish lines and nets made with nylon-6 exhibit important properties like tenacity, elongation and transparency that enable fishermen to catch more fish. Also, the softness and flexibility of nylon-6 makes handling and storage of those fishnets easier.
The importance of all these properties of nylon-6 is:
Transparency-to catch more fish.
Softness or flexibility-important for net handling and storage.
Tenacity-less breakage to keep fish in the net.
Elongation-holds knots better.
Hence, option A) nylon-6 is the polymer used for preparing fishing nets..

Note :
Do not get confused between nylon-6 and nylon-66. They both are different.
Nylon-6 is formed due to heating of caprolactam with water at high temperature. Nylon-66 is formed due to the condensation of adipic acid with hexamethylenediamine. In nylon-66 the direction of the amide bond reverses at each bond while in nylon-6 amide bonds lie in the same direction.