The primary difference between PVC (thermoplastic) and Bakelite (thermosetting plastic) lies in their response to heat. PVC, being a thermoplastic, can be softened and reshaped by heating and cooling repeatedly. Bakelite, on the other hand, is a thermosetting plastic, meaning it hardens irreversibly upon heating and cannot be remolded.
Elaboration:
PVC (Polyvinyl Chloride):
This thermoplastic can be softened and molded again when heated, making it suitable for applications like toys, chappals, and pipes.
Bakelite:
This thermosetting plastic sets into a hard, permanent shape after heating and cooling, making it ideal for applications requiring durability and resistance to heat, like electrical switches and handles of utensils.
Recyclability:
Thermoplastics like PVC are generally recyclable because they can be remelted and reshaped, whereas thermosets like Bakelite are not easily recyclable.
Applications:
The choice between the two depends on the desired properties and application. PVC’s flexibility and ability to be molded repeatedly make it suitable for various consumer products. Bakelite’s strength and heat resistance make it a good choice for components like electrical switches and utensil handles.