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Wednesday 1 January 2014

STATE THE PROPERTIES OF NYLON AND USES



TENACITY- NYLON 6,6-   4.6-5.8 gpd in dry and 4.0 -5.1 gpd in wet
                    NYLON 6-   4.5-5.8 gpd in dry &4.1-5.1 gpd in wet

Elastic recovery :-Standard filament of nylon 6,6 has an elastic recovery of 100% at upto 8% extension . Standard filament of nylon 6 has an elastic recovery of 100% at upto 6-8% extension.

Elongation :- Nylon 6,6 -26-32% in dry & 30-37% in wet.
                        Nylon 6 -23-42% in dry &27-34% in wet

Moisture regain:-    4-4.5%

Initial modulus:-  nylon6,6-40-60 gpd
                              Nylon 6-   35-50 gpd
Average stiffness :- nylon6,6  - 18gpd
                                   Nylon6-    23gpd
Specific gravity :      1.14

Effect of acid :  nylon6,6  - is attacked by mineral acid
                                   Nylon6-    attacked by mineral acids but resistance to dilute boiling organic acids

Effect of alkali : nylon is substantially inert to alkali

Bleaching :  not attacked by oxi and reducing bleaches but harmed by chlorine and strong oxidizing bleaching.

Organic solvents: most organic solvent have little or no effect. Phenol metarcessol and formic acid dissolve the fiber .but solvents used in stain removal and dry cleaning , do not damage it.

Insects:  nylon can not serve as food for moths

Micro organism : not weakened

USES: 
              APPAREL: LADIES GLOVES ,  LADIES HOSE , SWIMMING WEAR ,HOISIERY FABRIC etc.

DOMESTIC: FURNISHING, CARPET, IN UPHOLSTERY AND ROPES & CORDS

INDUSTRIAL USE : NETS, TIRE CORDS, FILTERING CLOTH,SEWING THREAD, TOW ROPES ARE MADE OF NYLON



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