Which one among the following is a thermosetting plastic?
- APVC
- BPVA
- CBakelite
- DNone of the above
Solution & Step-by-step Explanation
Plastics are divided into two main types based on their thermal properties:
* Thermosetting Plastics: Polymers that cross-link permanently during formation and cannot be remolded or reheated without chemical degradation. Bakelite and melamine are common examples.
* Thermoplastics: Polymers that can be melted repeatedly upon heating and solidified upon cooling. Polyvinyl Chloride (PVC) and Polyvinyl Acetate (PVA) are examples.
* Thermosetting Plastics: Polymers that cross-link permanently during formation and cannot be remolded or reheated without chemical degradation. Bakelite and melamine are common examples.
* Thermoplastics: Polymers that can be melted repeatedly upon heating and solidified upon cooling. Polyvinyl Chloride (PVC) and Polyvinyl Acetate (PVA) are examples.