Question

Correct statement for thermoplastic polymer is:
A. It does not become soft on heating under pressure
B. It cannot be remoulded
C. It is either linear (or) branched chain polymer
D. It is cross-linked polymer

Answer 1

We have to know that all the plastic materials which can be relaxed and softened by warming, yet they set again when cool are called thermoplastics. They could be broadly divided to amorphous thermoplastic polymer (or) crystalline thermoplastic polymer. Some of the thermoplastic polymers are polyamide, polycarbonate, polyphenylene sulfide etc.

Complete step by step answer:
We need to know that the most thermoplastics reasonable for use as matrices for elite composite show some level of crystallinity since this sort of structure has better protection from substance assault by field, water powered oil and paint stripper.
We have to know that with respect to behavior at raised temperatures, polymers are delegated either thermoplastics or thermosetting. Thermoplastic polymers have direct and expanded structures they mellow when warmed and solidify when cooled.
We have to know that numerous thermoplastic polymers are strengthened with fibers. Reinforcement is utilized to improve actual properties – explicitly heat deflection temperature. Glass fibers are the most ordinarily utilized strengthening material. The wear resistance and abrasion resistance of thermoplastic polymers are improved by the utilization of aramid strengthening. Thermoplastic contrasted and thermosetting polymers, assimilate substantially less dampness with less important decrease in raised temperature mechanical properties.
The correct statement regarding thermoplastic polymer is that thermoplastic polymer is either linear polymer (or) branched chain polymer.

So, the correct answer is Option C.

Note: We must know that the thermoplastics are a lot harder than thermosets, along these lines they have much better burial strength and protection from sway. Since no synthetic response is required, they have exceptionally short handling times, in spite of the fact that the temperatures and weight are a lot more noteworthy than those needed for thermosetting frameworks with a corresponding expansion in expenses.