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Class 8 Science – Synthetic Fibres and Plastic

Class 8 Science – Synthetic Fibres and Plastic

In this article, we will discuss Synthetic fibers and Plastics.
Synthetic Fibres
Man-made fibers are known as synthetic fibers. A synthetic fiber contains multiple units which are joined together to form a single unit called a polymer. The structure of a polymer can describe as resembling numerous beads on a string, with each bead representing an individual unit that is joined to other such units. The common synthetic fibers are Rayon nylon, acrylic, and spandex.
Nylon-It is the first true synthetic fibers. It was first produced in the early 1930s by the scientists at the DuPont Company from coal water and air
Properties of Nylon
  • It is elastic and does not lose strength even after repeated use.
  • It is lustrous and easy to wash.
  • It is waterproof.
Nylon is used for making socks, stockings, tents, umbrellas, parachutes, and tarpaulins. They are also used for making toothbrush, fishing nets, and strings of badminton and tennis racquets
Rayon– It is also called artificial silk. It is prepared from cellulose which comes from wood pulp.
Properties of Rayon
  • Absorbs sweat
  • Shiny and lustrous resembling to artificial silk
Rayon is used for making suits, jackets, scarves, ties, home furnishing and bandages
Polyester-It is a group of different synthetic fibers. The most commonly used polyester is Terylene. It is blended with natural fibers to improve its properties. Terry cot a blend of terylene and cotton has better absorbing power compared to others. Terylene blended with wool to make terry wool which warns in addition to all the characteristics observed in polyesters.

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