Question

PP (Polypropylene) is used for making _____
(A) Disposable cups
(B) liquid detergents
(C) grocery bags
(D) electric switches

Answer 1

In order to find the uses of polypropylene, we must first know what a polypropylene is. Knowing about different uses of polypropylene will help us to answer this question very easily. Polypropylene is a thermoplastic polymer which is prepared by the polymerization process of a monomer called propylene.

Complete step by step answer:
Let us first understand polypropylene. Polypropylene is a thermoplastic polymer which is prepared by the polymerization process of a monomer called propylene.
- Polypropylene belongs to the polyolefins group.
- Polypropylene is partially crystalline in nature.
- Polypropylene is also non-polar.
- It is slightly harder than polyethylene.
- it has good resistance to heat.
- It is a white material and has good chemical resistance.
- Polypropylene will be having a very low boiling point.
- polypropylene is a waterproof material
- It has good flexibility.
Let us now see different uses of polypropylene.
- disposable cups,
- bottles
- plates
- cutlery
- specimen bottles
- plastic furniture
- petri dishes
- battery casings
- syringes
- medical vials
- drink holders
The correct answer is option “A” .

Note: Polypropylene have certain disadvantages such as:
- it cannot be recycled
- it will also produce certain chemical changes which cannot be reversed.
- Re-heating of the formed polypropylene will simply burn it.
- Recycling by other methods is very costly.
- Polypropylene has a low melting point and hence it is highly flammable.