Bakelite is a thermosetting polymer, meaning it undergoes irreversible chemical reactions during its curing process to form a hard, infusible, and insoluble material. Once molded and cured, Bakelite cannot be softened or reshaped by heating, making it suitable for applications requiring high heat and chemical resistance, such as electrical insulators and durable handles for cookware.
So, the correct option is (C): Bakelite.
Process | Application | ||
---|---|---|---|
P | Extrusion | 1 | Producing complex parts with close tolerance |
Q | Injection molding | 2 | Producing thermosetting plastic components |
R | Blow molding | 3 | Producing long uniform sections |
S | Compression molding | 4 | Producing hollow shapes |
A body of mass 1000 kg is moving horizontally with a velocity of 6 m/s. If 200 kg extra mass is added, the final velocity (in m/s) is:
Neoprene is formed from chloroprene. It is prepared by free radical polymerisation. The monomer of neoprene is chloroprene. It is used for preparing gaskets, conveyor belts etc.