thermosetting material
A helmet is typically made from thermoplastic material, which can be reheated and reshaped. Thermosetting plastic, once molded, cannot be reheated and reshaped.
Bakelite is a thermosetting plastic, meaning it cannot be reshaped once molded, while polythene is a thermoplastic that can be melted and reshaped multiple times. Bakelite is a poor conductor of electricity, whereas polythene is an insulator. Bakelite is more rigid and heat resistant compared to polythene.
PVC is softer and flexible because it is a thermoplastic polymer, which means it can be easily molded and reshaped when heated. Bakelite, on the other hand, is a thermosetting polymer, which means it hardens irreversibly once molded and cannot be reshaped. This makes bakelite hard and brittle compared to PVC.
Polyester resin is a thermosetting resin, generally a copolymer
No, HIPS (High-Impact Polystyrene) is a thermoplastic, not a thermosetting plastic. Thermoplastics can be melted and reshaped multiple times, while thermosetting plastics undergo a chemical reaction during curing that makes them rigid and non-meltable.
thermosetting material
Thermosetting
thermoplastic
It is a thermoplastic! :)
Thermoplastic
thermoplastic
Teflon is a thermoplastic.
thermosetting plastic
Thermoplastic and thermoset materials both fall under the broad category of Polymers. The biggest difference between a thermoplastic and thermoset is that a thermoplastic can be recycled. Whereas a thermoset irreversibly cure. Thermoplastic: PE, PP, PVC. Thermoset: Bakelite, Epoxy.
the opposite to thermosetting plastic is thermoplastic
A helmet is typically made from thermoplastic material, which can be reheated and reshaped. Thermosetting plastic, once molded, cannot be reheated and reshaped.
Thermoset