1. Give reason
A. Nylon is used to make parachutes.
B. Acrylic is used to make sweaters
2. How can we prepare
A. Rayon
B. Nylon
3.Write examples for synthetic fibres
4. What will you suggest as an example for the statement ‘nylon fibres are very
strong’?
5. What are the characteristics of synthetic fibres?
Answers
Answer:
rayon
Explanation:
Answer:
the parachutes are made up of nylon because it has good strength, excellent elasticity as well as elongation
the sweaters are made up of acrylic fabric because it is lightweight, warm and has a soft touch.
rayon is obtained from a wood pulp and this pulp is further dipped into an alkaline solution to form it dense. then its passed from tiny holes into a solution of sulphuric acid where silk like thread of rayon is formed
nylon is prepared without using natural raw material. its a polymer which is melted.
ex of synthetic fibre : rayon, nylon and acrylic
ex that nylon fabric are strong is ropes, parachutes
characteristics of synthetic fibres
. its cheaper than natural fibre
. its stronger than natural fibre
. it gets dried up than natural fibres at less time
. its easy to wash ....