Q. “Thermo plastics soften on heating and become hard on cooling ,so they can be remoulded ,recast and reshaped .While thermosetting,plastic can be only moulded into desired shape on heating once” Which among the following is an example for thermo-setting plastic ?
Solution:
Bakelite is a thermo setting plastic .
Thermoset, or thermosetting, plastics are synthetic materials that strengthen during being heated, but cannot be successfully remolded or reheated after their initial heat-forming. This is in contrast to thermoplastics, which soften when heated and harden and strengthen after cooling.
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