PTFE FEP PFA ETFE PCTFE PVDF Material Properties Of Fluorocarbon
PTFE FEP PFA ETFE PCTFE PVDF material properties
max temp and small bore ptfe tubing properties-of-fluorocarbon
|
Property |
PTFE |
FEP |
PFA |
ETFE |
PCTFE |
PVDF |
|
Specific gracity |
2.14-2.2 |
2.12-2.17 |
2.12-2.17 |
1.7-1.86 |
2.1-2.14 |
1.75-1.78 |
|
Melting point(℃) |
327 |
270 |
310 |
270 |
220 |
173-175 |
|
Contact angle(degree) |
110 |
114 |
115 |
96 |
84 |
82 |
|
Maximum temp.for continuous use(℃) |
260 |
200 |
260 |
150 |
120 |
150 |
|
Tensile strength(MPa) |
20—45 |
19–22 |
27–31 |
40–46 |
31–41 |
39–59 |
|
Elongation(%) |
200—400 |
250–330 |
280–300 |
420–440 |
80–250 |
300–450 |
|
Static friction coeffcient |
0.02 |
0.05 |
0.05 |
0.06 |
0.08 |
0.4 |
|
Dielectric constant |
2.1 |
2.1 |
2.1 |
2.6 |
2.3—2.7 |
7.72 |
|
Dielectric dissipation factor |
<1×10-5 |
6×10-5 |
1×10-5 |
8×10-4 |
(2.3-2.7)×10-2 |
1.9×10-2 |
|
Dielectric breakdown strength(V/mil) 3.2mm |
500 |
500 |
500 |
400 |
500 |
260 |
|
Volume resistance(Ω-cm) |
>1018 |
>1018 |
>1018 |
>1016 |
>1016 |
>2×1014 |
|
Chemical resistance |
Excellent |
Excellent |
Excellent |
Excellent |
Excellent |
Excellent |
|
Weatherability |
Excellent |
Excellent |
Excellent |
Excellent |
Excellent |
Excellent |
|
Combustibility(Oxygen%) |
>95 |
>95 |
>95 |
31 |
>95 |
43 |
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