Question

3 differences between thermoplastics and thermosetting​

Answer 1

Explanation:

Difference Between Thermoplastic and Thermosetting Plastic

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 points and low tensile strength. Thermosetting plastics have high melting points and tensile strength.

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

Answer 2

Answer:

Thermosetting

Thermoset plastics contain polymers that cross-link together during the curing process to form an irreversible chemical bond. The cross-linking process eliminates the risk of the product remelting when heat is applied, making thermosets ideal for high-heat applications such as electronics and appliances.

    Pros

• More resistant to high temperatures than thermoplastics
• Highly flexible design
• Thick to thin wall capabilities
• Excellent aesthetic appearance
• High levels of dimensional stability
• Cost-effective

    Cons

• Cannot be recycled
• More difficult to surface finish
• Cannot be remolded or reshaped

Thermoplastics

Thermoplastics pellets soften when heated and become more fluid as additional heat is applied. The curing process is completely reversible as no chemical bonding takes place. This characteristic allows thermoplastics to be remolded and recycled without negatively affecting the material’s physical properties.

    Pros

• Highly recyclable
• Aesthetically-superior finishes
• High-impact resistance
• Remolding/reshaping capabilities
• Chemical resistant
• Hard crystalline or rubbery surface options
• Eco-friendly manufacturing

   Cons

• Generally more expensive than thermoset
• Can melt if heated