|
ECTFE
|
Units
|
Test method
|
Property
|
|
240-245
|
.C
|
|
Melting point
|
|
1.68
|
|
|
Specific gravity
|
|
150
|
.C
|
|
Max continuous service temperature
|
|
250-280
|
.C
|
|
Oven process temperature
|
|
8
|
10-5/.C
|
|
Thermal expansion coefficient
|
|
1,700
|
MPa
|
ASTM D790
|
Flexural modulus @ 22.C
|
|
1,700
|
MPa
|
ASTM D638
|
Tensile modulus @ 22.C
|
|
32
|
MPa
|
ASTM D638
|
Yield stress @ 22.C
|
|
48
|
MPa
|
ASTM D638
|
Tensile strength at break @ 22.C
|
|
90
|
|
ASTM D785
|
Hardness Rockwell R
|
|
HB-2B
|
|
|
Hardness Pencil
|
|
70-75
|
|
ASTM D2 240
|
Hardness Shore D
|
|
no break
|
j/m
|
|
Impact strength notch Izod @ 25.C
|
|
94 V-O
|
|
|
Flammability
|
|
60
|
%
|
|
Oxygen index
|
|
1016
|
ohm.cm
|
ASTM D257
|
Volume resistivity
|
|
2.5
|
|
|
Dielectric constant @ 1 MHz
|
|
14.5
|
kV/mm
|
|
Dielectric strength 3mm thick
|
|
0.009
|
|
|
Dissipation factor @1 MHz
|
|
>0.1
|
%
|
ASTM D570
|
Water absorption
|
| |
|
|
Permeability (cm3(STP)* mm/m2*atm*24h) *102
|
|
0.2
|
|
|
O2@ 25.C
|
|
0.1
|
|
|
N2@ 25.C
|
|
7.5
|
|
|
H2O (vapor) @ 25.C
|
| |
|
|
Permeability (g*mm/m2*24h)
|
|
0.5
|
|
|
HCI 37% @50.C
|
|
0.3
|
|
|
Methanol @ 50.C
|
|
0.5
|
|
|
H2O (liq.) @ 50.C
|
|
>-76
|
.C
|
|
Low temperature embrittlement
|