TABLE 1
These fibres are found naturally on Earth without being scientifically invented.
What are natural fibres?
These are man-made fibres that are produced entirely with the help of chemicals.
What are synthetic fibrees?
This is a chain made of many single units to make fibre.
What are polymers?
Polymers are made up of this.
What are monomers?
The first artificially manufactured fibre also known as 'laboratory's first gift of the loom'.
What is Rayon?
The basic raw materials used to make this fibre are coal and petroleum.
What are the raw materials used to make nylon?
This is a polymer of many ester units.
Describe polyester in a line.
They are also known as orlon fibres
What is Acrylic?
This is a blend of Terrylene and cotton.
What is terry cot?
This is a blend of terrylene and wool
What is terry wool?
Synthetic polymers that can be moulded into different shapes.
What are plastics?
These plastics become soft on heating and harden when cooled.
What are thermoplastics?
These plastics cannot be softened on heating.
What are thermosetting plastics?
Polythene and PVC are examples.
Write some examples of thermoplastics.
Bakelite and Melamine are examples.
Write examples of Thermosetting plastics?