Explain the difference between thermoplastic and termosetting plastics?

Question

Answer

Thermoplastic vs Thermosetting Plastics

Thermoplastic:

Thermoplastics are plastics that can be melted and reshaped multiple times without undergoing any chemical change.
They are composed of long molecular chains that are held together by weak forces, allowing them to be easily molded and recycled.
Common examples of thermoplastics include polyethylene, polypropylene, and PVC.
When heated, thermoplastics soften and can be molded into different shapes. Once cooled, they harden and retain their new shape.
They are used in a wide range of applications such as packaging, toys, and household items.

Thermosetting:

Thermosetting plastics are plastics that undergo a chemical reaction when heated, resulting in a permanent change in their structure.
They are composed of cross-linked molecular chains that form a rigid and durable structure, making them resistant to heat and chemicals.
Common examples of thermosetting plastics include epoxy resins, phenolic resins, and polyester resins.
Once thermosetting plastics are molded and cured, they cannot be reshaped or melted again without undergoing decomposition.
They are used in applications where high heat resistance and dimensional stability are required, such as in electrical components, automotive parts, and construction materials.