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NETS SPECIFICATION

Nets Specifications data >> HTML File

Nets Specifications data >> PDF File

CHEMICAL AND PHYSICAL CHARACTERISTICS OF SYNTHETIC FIBERS

	FIBER
Chemical/physical characteristics	PA 6 HT	PA 66 HT	PES HT	PP	HPPE	PE
Tenacity (gr./den)	9	9	9	7	40	5
Elongation at break(%)	23	20	14	18	3,5	20
UV rays resistance	medium	weak	medium	medium	good	medium
Specific weight	1,14	1,14	1,38	0,91	0,97	0,97
Melting point C°	215-220	255-260	250-260	160-175	144-152	125-135
Resistance to alkalis	good	good	weak	good	good	good
Acid resistance	weak	weak	good	good	good	good
Moisture absorption% (65%-20°C)	3,5-4,5	3,4-4,5	0,2-0,5	0	0	0

EMPIRICAL CRITERIA FOR IDENTIFICATION OF SYNTHETIC FIBERS

	FIBER
Identification	PA	PES	PE	PP
Combustion	Fusion followed by a short-term flame with ejection of fused droplets	Fusion followed by slow combustion with bright yellow flame	Fusion followed by slow combustion with a dim blue flame	Fusion followed by slow combustion with a dim blue flame
Smoke	White	Nero with Soot	White	White
Odour	Celery	Hot oil	Blowing out candle	Hot wax
Residuals	Welding residuals grey/dark	Welding residuals hard and dark	Welding residuals soft	Welding residuals hard

ABBREVIATION

PA 6 HT	Polyamide (Nylon) 6 High tenacity
PA 6,6 HT	Polyamide (Nylon) 6,6 High tenacity
PES HT	Polyester High tenacity
PP	Polypropylene
PE	Polyethylene

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