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PTFE pipes, bars and sheets
Among all known plastic materials, PTFE provides the best chemical corrosion resistance, dielectric properties and aging resistance, and has no viscidity. In situations with zero load, it may be used with a wide temperature range from -180%°C to +260°C, and has the lowest friction coefficient among all known solid materials. Pipes, bars, sheets, films, bearings, washers, valves and other special-purpose structures and parts made from PTFE are widely used in industries of machinery, chemical, aviation, electricity and electronics, national defense, sophisticated technologies, medical care and electric insulation.
I. PTFE pipe
1. Structure: The pipe is manufactured through extrusion from suspension-polymerized PTFE.
2. Use: Insulating protection sleeve of wires and pipes for corrosive liquids.
3. Performance Indicators
|
Item |
Unit |
Indicators |
|
Apparent density |
g/cm³ |
2.10-2.30 |
|
Tensile |
MPa |
18 |
|
Breaking elongation ≥ |
% |
230 |
4. Technical Specification
|
|
Spec. |
Length |
|
Extruded pipe |
φ0.5~3 |
N/A |
|
Extruded pipe |
φ4~30 |
N/A |
|
Pressed pipe |
φ25~150 |
N/A |
|
Pressed pipe |
φ150~250 |
N/A |
|
Molded pipe |
φ20~300 |
<300mm |
|
Molded pipe |
φ301~600 |
<300mm |
|
Molded pipe |
φ601~1800 |
<200mm |
II. PTFE bar
1. Structure: The bar with diameter from 4mm to 9mm is produced from dispersion-polymerized PTFE through pressured extrusion after coating operation. Bars with diameters from 10mm to 50mm are produced from suspension-polymerized PTFE through pressured extrusion by plunger machines. Bars with diameter of 50mm and larger are produced by molding.
2. Use: Electric installation parts, sealing cushions and adhesion protection material.
3. Performance Indicators
|
Item |
Unit |
Indicators |
|
Apparent density |
g/cm³ |
2.10-2.30 |
|
Tensile strength ≥ |
MPa |
14 |
|
Breaking elongation ≥ |
% |
140 |
Note: Only apparent density is tested if bar diameter is larger than 16mm.
4. Technical Specification
|
Model |
Diameter (mm) |
Length (mm) |
||
|
Title |
Tolerance |
Title |
Tolerance |
|
|
SFFBN |
4,5,6 |
+0.48 |
1000 |
+5.0 |
|
0 |
||||
|
7,8,9 |
+0.58 |
|||
|
0 |
||||
|
SF×BN |
10,13,15 |
+1.10 |
1000 |
+3.60 |
|
0 |
||||
|
20,25,30 |
+1.30 |
|||
|
0 |
||||
|
35,40,45 |
+1.60 |
|||
|
0 |
||||
|
55,60,65,70,75 |
+2.00 |
100-300 |
+2.50 |
|
|
0 |
||||
|
110,120,130 |
+2.50 |
|||
|
0 |
||||
|
180,200,250 |
+3.0 |
100 |
+2.0 |
|
|
0 |
||||
III. PTFE sheet
1. Structure: The pipe is manufactured through extrusion from suspension polymerized PTFE.
2.Use: Corrosion-resistant lining material and sealing liner, bearing and sliding block, rails and electric insulation parts.
3. Performance Indicators
|
Item |
Unit |
Indicators |
|
Apparent density |
g/cm³ |
2.10-2.30 |
|
Tensile strength ≥ |
MPa |
15 |
|
Breaking elongation ≥ |
% |
150 |
|
Dielectric strength ≥ |
KV/mm |
10 |
4. Technical Specification
|
L×W (mm) |
Thickness (mm) |
Tolerance (mm) |
|
150×150 |
1.0~30 |
±0.30-±0.50 |
|
250×250 |
1.5~30 |
±0.30-±0.50 |
|
300×300 |
1.5~30 |
±0.30-±0.50 |
|
450×450 |
1.5~30 |
±0.30-±0.50 |
|
600×600 |
2~100 |
±0.30-±0.50 |
|
800×800 |
3~100 |
±0.30-±0.50 |
|
1000×1000 |
3~100 |
±0.30-±0.50 |
|
1200×1200 |
3~100 |
±0.30-±0.50 |
|
1000×2000 |
3~100 |
±0.30-±0.60 |
|
1500×1500 |
3~100 |
±0.30-±0.50 |
|
1800×1800 |
3~100 |
±0.30-±0.50 |
|
2000×2000 |
3~100 |
±0.30-±0.50 |