Question 02 (Textile Engineering & Fibre Science)
The acrylonitrile content in the modacrylic fibre forming polymer is
| (A) | 85-95% |
| (B) | 40-80% |
| (C) | 10-30% |
| (D) | 25-85% |
[Show Answer]
D
Frequently Asked Questions | FAQs
Which fibre is manufactured from 85% of acrylonitrile substance?
The fiber that is manufactured from 85% acrylonitrile substance is called acrylic fiber. It is a synthetic fiber made from polymerization of acrylonitrile, a petrochemical-derived monomer, and is known for its softness, warmth, and resistance to sunlight and chemicals. Acrylic fibers are commonly used in clothing, blankets, upholstery, and outdoor fabrics. They can also be blended with other fibers to enhance their properties.
What is the composition of acrylonitrile?
Acrylonitrile is a chemical compound with the molecular formula C3H3N. It is a colorless, liquid, or gas with a pungent odor. Acrylonitrile is produced from propylene and ammonia through a process called ammoxidation, where the propylene is oxidized to form acrolein, which is further oxidized to form acrylonitrile. The composition of acrylonitrile is carbon, hydrogen, and nitrogen, with the following atomic ratios:
Carbon (C): 3 atoms
Hydrogen (H): 3 atoms
Nitrogen (N): 1 atom
So the chemical formula for acrylonitrile can be written as CH2=CH-CN.