Synthetic Fibres and Plastics — Science STD 8 — Question
Gujarat BoardEnglish MediumSTD 8ScienceSynthetic Fibres and Plastics1 Mark
MCQ
Which one of the following is a thermosetting plastic$?$
✓
Melamine
B
Polylactide
C
$\text{PET}$
D
Acrylic
✓
Answer
Correct option: A.
Melamine
Thermosetting plastics are those plastics which once moulded, cannot be softened by heating.
Two examples are: Bakelite: Used for making electrical switches, handles of various utensils. Melamine: Used for making floor tiles, kitchenware and fabrics which can resist heat.
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