Difference between thermoplastic and thermosetting plastics

Thermoplastic

Thermosetting Plastic

Thermoplastic can be synthesized by the process called addition polymerization.

Thermosetting plastics are synthesized by condensation polymerization.

Thermoplastic is processed by injection moulding, extrusion process, blow moulding, thermoforming process, and rotational moulding.

Thermosetting Plastic is processed by compression moulding, reaction injection moulding.

Thermoplastics have secondary bonds between molecular chains.

Thermosetting plastics have primary bonds between molecular chains and held together by strong cross links.

Thermoplastics have low melting point and low tensile strength.

Thermosetting plastics have high melting point and tensile strength.

Thermoplastic is lower in molecular weight, compared to thermosetting plastic.

Thermosetting Plastic is high in molecular weight.