Question

Explain the difference between thermoplastic and thermosetting plastics​

Answer 1

Difference Between Thermoplastic and Thermosetting Plastic

Talking about the differences between thermoplastic and thermosetting plastic, well the main distinguishing factor between the two is that, thermoplastic materials typically have low melting points due to which they can further be remoulded or recycled easily.

On the other hand, thermosetting plastic is quite the opposite. They can withstand high temperatures and once hardened these cannot be reformed or recycled even with the application of heat. In any case, let’s have a look at some of the important differences between these two compounds below.

Difference Between Thermoplastic and Thermosetting Plastic

Thermoplastic

(I). Thermoplastic can be synthesized by

the process called addition

polymerization.

(ii). Thermoplastic is processed by

injection moulding, extrusion

process, blow moulding,

thermoforming process, and

rotational moulding.

(iii). Thermoplastics have secondary

bonds between molecular chains.

(iv). Thermoplastics have low melting

points and low tensile strength.

(v). Thermoplastic is lower in molecular

weight, compared to thermosetting

plastic.

Thermosetting Plastic:

(I). Thermosetting plastics are

synthesized by condensation

polymerization

(ii). Thermosetting Plastic is processed

by compression moulding, reaction

injection moulding.

(iii). Thermosetting plastics have primary

bonds between molecular chains

and held together by strong

cross-links.

(iv). Thermosetting plastics have high melting points and tensile strength.

(v). Thermosetting Plastic is high in molecular weight.

Some examples of thermoplastics are listed below:

-Polystyrene

-Teflon

-Acrylic

-Nylon

Examples of thermosetting polymers include:

- Vulcanized rubber

- Bakelite

- Polyurethane

- Epoxy resin

- Vinyl ester resin

Answer 2

Answer:

The primary difference between the two is that Thermoset is a material that strengthens when heated, but cannot be remolded or heated after the initial forming, while thermoplastics can be reheated, remolded, and cooled as necessary without causing any chemical changes.