Question

1. Describe '3R'
2. different between thermosetting plastic and thermoplastic with examples.

Answer 1

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The 3Rs are:

• Reduce
• Reuse
• Recycle

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• REDUCE : Purchase product that require less packaging or to limit the waste you are producing.

• REUSE : Use a travel mug or reusable water bottle and avoid single - use bags.

• RECYCLE : Paper, plastic, glass, magazines, electronics, and more can be processed into new products while using fewer natural resources and less energy.

$thermosetting \: \: \: plastics.......$

The plastics that do not soft in maths on heating and can be moulded only once are known as thermosetting plastics.

EXAMPLE : bakelite, duroplast, etc...........

$thermoplastics........$

The plastics that can be e melted easily on heating and can be moulded again and again into different shapes are known as thermoplastics.

EXAMPLE : hand gloves, covering for electric wires, etc...........

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