Write down short notes on Bakelite and Melamine . Class 8
Answers
Bakelite:It is a very hard and tough plastic.It is a poor conductor of heat and electricity. Melamine is a plastic which can tolerate heat better than other plastics and resist fire. It is used for making floor tiles,unbreakable kitchenware,ashtray and fire resistant fabric.
Explanation:
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Answer:
Bakelite: It is a thermosetting phenol formaldehyde resin, formed from an elimination reaction of phenol with formaldehyde. It was made in 1907 by Belgian chemist Leo Baekeland. Bakelite was used for its electrically nonconductivity and heat-resistant properties in electrical insulators, radio and telephone casings.
Melamine: Melamine, also called cyanuramide or triaminotriazine, a colourless crystalline substance belonging to the family of heterocyclic organic compounds, which are used principally as a starting material for the manufacture of synthetic resins. Melamine is rich in nitrogen, a property that is similar to protein.
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