Fluoroplast-4 GOST 10007-80
Fluoroplast-4PN-90 TU 2213-021-13693708-2005
Fluoroplast-4PN-40 TU 2213-021-13693708-2005
Fluoroplast-4PN-20 TU 2213-021-13693708-2005
Fluoroplast-4PN-90 TU 2213-021-13693708-2005
Fluoroplast-4PN-40 TU 2213-021-13693708-2005
Fluoroplast-4PN-20 TU 2213-021-13693708-2005
(-CF2-CF2-)n
Analogs: Teflon 7, Fluon G 163, 190, Algoflon F, Hostaflon TF 1702, Polyflon M 12, 14
It is an easily-lumping white powder with no visible inclusions.
Depending average particles size several grades of PTFE are produced:
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Property
|
Grade
|
|||
|
F-4 (S, P, PN, O, T)
|
F-4PN-90
|
F-4PN-40
|
F-4PN-20
|
|
|
Appearance
|
Easily -lumping white powder with no visible inclusions
|
|||
|
Moisture content, %, max
|
0,02
|
0,02
|
0,02
|
0,02
|
|
Density, g/cm3, max
|
2,18-2,21 (depending on grade)
|
2,19
|
2,19
|
2,19
|
|
Tensile strength of unhardened specimen, MPa (kgf/cm2), min
|
26 (260) – 15 (150)
(depending on grade)
|
25 (255)
|
25 (255)
|
25 (255)
|
|
Elongation at break unhardened specimen, %, min
|
350 – 150
(depending on grade)
|
350
|
350
|
350
|
|
Dielectric strength, kV/mm, min
|
50 – 60
(depending on grade)
|
-
|
60
|
60
|
|
Average particles size, µm
|
100-180
|
46-135
|
21-45
|
6-20
|
