Teflon Property Compassion of Various Flouroplastic - nylon - 6 Rod - Cast nylon Sheet - plastic moulding die mfg - polyurethane rod

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Teflon Property Compassion of Various Flouroplastic

Property	ASTM test test condition	TFE	PFA	FEP	ETFE	PVdf
Physical Properties
Specific gravity	D792	2.13 - 2.22	2.12 - 2.17	2.12 - 2.17	1.70 - 1.76	1.76 - 1.78
Water absorption	D570 / 24 hrs 1/3"t	< 0.00	< 0.01	< 0.01	< 0.01	< 0.04
Mold shrinkage		0.02 - 0.05	0.02 - 0.05	0.03 - 0.06	0.03 - 0.04	0.014
Contact Angle	Angle to level	110	115	114	96	82
Thermal Properties
Thermal Conductivity (cal/sec/cm², °C/cm²)	C117	6x10^-4		6x10^-4	5.7x10^-4	3.0x10^-4
Coefficient of liner thermal expansion (1/°c)	D696 / 23-60°C	10x10^-5	12x10^-5	8.3-10x10^-5	5-9x10^-5	4.2x10^-5
Melting point (°c)		327	302-310	270	260	173-175
Melt viscosity (poise)		10¹¹ -10¹³ (340-380°C)	10⁴ -10⁵ (380°C)	4x10⁴ -10⁵ (300-330°C)	4x10⁴ -10⁵ (300-330°C)	2x10³ -10⁵ (210-270°C)
Maximum tem. for continuous temp. (°c/°f)		260 / 500	260 / 500	200 / 392	150 / 302	150 / 302
Mechanical Properties
Tensile strength (kgf/cm²)	D792	140-350	280-315	190-220	410-470	4000-600
Elongation (%)	D638/23°C	200-400	280-300	250-330	420-440	420-450
Compression strength (kgf/cm²)	D638/23°C	50-60	50-60	50-60	109	128-140
Tensile modulus (kgf/cm²)	D695/1% deformation, 25°C	4000	-	3500	5000-8000	8000-20000
Flexural modulus (kgf/cm²)	D790/23°C	5000-6000	6600-7000	5000-6500	9000-140000	14000-18000
Impact strength (tt-ib/in)	D256/23²C, Izod	3.0	-	No breakdown	No breakdown	20.7
Hardness (Shore)	Durometer	D50-D65	D60	D55	D75	D75-D85
Deformation under load (%)	D621/125°C 70kgf/cm², 24 hrs	5.0	2.4	5.0	5.4	2.4
	D621/125°C 140kgf/cm², 24 hrs	7.0	2.7	3.0	2.3	0.7
Static triction coefficient	Coated-steel surface	0.02	0.05	0.05	0.06	0.4
Electrical Properties
Dielectric constant	D150/10³ Hz D150/10³ Hz	2.13-2.22	2.12-2.17	2.12-2.17	1.71-1.76	1.76-1.78
Dielectric disslpation factor	D150/10³ Hz D150/10³ Hz	< 0.00	< 0.01	< 0.01	< 0.1	< 0.04
Dielectric breakdown strength (V/mil)	D150/106 Hz 1/8 in	0.02-0.05	0.02-0.05	0.03-0.06	0.03-0.04	0.014
Volume resistivity (ohm-cm)	D257	110	115	114	96	82
Chemical resistance		Excellent	Excellent	Excellent	Excellent	Good
Weatherability		Excellent	Excellent	Excellent	Excellent	Excellent
Combustibility (%)	D2863-Oxygen Concentration index	< 95	< 95	< 95	31	43

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