Nylon Fiber Production | Nylon Fiber Characteristics | Uses of Nylon Fiber
Nylon Fiber Production | Nylon Fiber Characteristics | Uses of Nylon Fiber : Nylon is a generic designation for a family of artificial polymers, supported aliphatic or semi-aromatic polyamides. It may be a thermoplastic silky material that may be melt-processed into textile fibers, films, or shapes. It’s product of repeating units linked by amide links . Alike to the peptide bonds in proteins. The nylon polymers are mixed with a good sort of additives to attain many alternative property variations. Nylon polymers are found very important commercial applications in fabric and fibers (clothing, flooring and rubber reinforcement), in shapes (molded parts for cars, electrical equipment, etc.), and in films (mostly for food packaging).
Nylon Fiber Production:
The word nylon speaks of to a family of polymers that are named as linear polyamides. There are two common methods of constructing nylon for fiber applications. In one approach, molecules with an acid (COOH) group on each end are reacted with molecules containing amine (NH2) groups on each end. The resulting nylon is called on the idea of the quantity of carbon atoms separating the two acid groups and also the two amines. Thus nylon 6,6 which is extensively used for fibers is created from hexanedioic acid and hex methylene diamante. The two compounds form a salt, named nylon salt, a precise 1:1 ratio of acid to base. This salt is then dried and heated under vacuum to eliminate water and form the polymer.
In another approach, a compound containing an amine at one end and an acid at the opposite is polymerized to create a sequence with repeating units of (-NH-[CH2]n-CO-)x. If n=5, the nylon is spoken as nylon 6, another common type of this polymer. The commercial production of nylon 6 begins with caprolactam uses a ring-opening polymerization. For a close production flowchart, go here.
In both cases the polyamide is melt spun and drawn after cooling to convey the required properties for every intended use. Manufacturing of nylon industrial and carpet fibers instigates with a solution of monomers and proceeds continuously through polymerization, spinning, drawing, or draw-texturing.
Characteristics of Nylon Fiber
- Luster: Bright to Dull
- To flame: Self extinguishing
- Resiliency: Good
- Elastic Recovery: 100%
- Moisture absorption: 8%
- Elongation: Good
- Shape: Shape is controlled by the manufacturer, filaments are uniform and long.
- Density: 1.1 g / ccm
- Insects: Normally damages
- Dimensional stability: Excellent
- Sun light: Generally affects
- Acids: resistance is poor
- Alkali: Good resistance
Uses of Nylon
- Apparel –Foundation garments, Shirts, lingerie, raincoats, swimwear underwear, and cycle wear.
- Industrial uses –Seat and Conveyor belts, airbags, parachutes, tarpaulins, nets and ropes, tents, and threads
- In making of a fish net nylon is a major component.
- Nylon is one of fine plastic in manufacturing machine parts.
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