In order to improve the creep properties and wear resistance of PTFE, PTFE rods are filled with PTFE by using graphite, glass fiber and the like as main materials. Main uses: gaskets, valve seats, seals, bearings, sliders, piston rings, etc....
1. Temperature resistance ---It is able to work stably between -180°C to +260°C.
2. Excellent chemical corrosion resistance---Applicable medium includes oil, acid solution and almost all chemical materials.
3. Excellent non-sticky property - --With low friction coefficient it easier to remove those resin, dopes, oil and other sticky things.
4. Anti-aging, weathering resistance.
5. Excellent insulation property.
6. Filled material:Filled PTFE products has more outstanding performance by adding filler such as carbon, graphite, bronze, glass fiber, carbon fiber, MOS2, PEEK, PI, POB BaSO4, SiO2, glass bead, polyamide.
Even if PTFE products have excellent properties, like high/low temperature resistance, chemcial resistance, weathering resistance, dielectric superiority and high lubricity, sometimes we still need to improve its hardness, wear resistance, creep resistance and dimensional stability.
Filled PTFE products has more outstanding performance by adding filler such as carbon, graphite, bronze, glass fiber, carbon fiber, MOS2, PEEK, PI, POB BaSO4, SiO2, glass bead, polyamide.
Details of PTFE filled with other materials :
Filled materials
Common filled ratio
( Quantity %)
Main performances
Bronze
40, 60
Increases hardness and wear resistance; Increases dimensional stability and compressive strength;
Carbon
5, 10, 15
Increases compressive strength, hardness, wear, and load properties. Good chemical resistance;Improves electrical properties.
Graphite
5, 10, 15
Improves the deformation under load; Reduces initial wear; Improves thermal and eletrical conductivity
Glass Fiber
10, 15, 25
Increases compressive strength, rigidity and wear. Reduces creep and cold flow; Improve Dimensional Stability.
Carbon Fiber
10 , 15, 25
Increases compressive strength, hardness, wear, and load properties. Reduces creep and cold flow
POB (polyphenyl ester)
5, 10, 15
Improve the lubrication performance;Enhance the mechanical strength;
Increase using temperature
BaSO4
5, 10, 15
Increases compressive strength, hardness and wear resistance Reduces creep
SiO2
5, 10, 15
Increases hardness and wear resistance; Improve Dimensional Stability.
Glass beads
5, 10, 15
Reduces creep and cold flow;Lower density Increases hardness and wear resistance;
Others materials
PEEK(polyetheretherketone), PI(Polyimide), MoS2 are also ok
Remarks
Some materials have similar enhancement effect, but degrees of enhancement are different. And they have different prices. More details please contact us.
Item
Pure PTFE
60% Bronze
20% Glass Fiber
15% Glass Fiber 5% graphite
20% Carbon fiber
Unit
Density
2.18
3.9
2.26
2.22
2.01
g/m3
Tensile strength
276
127
175
158
189
MPa
Elongation at break
238
101
207
205
92
%
ROCKWELL Hardness
3.2
33.8
6.4
11.3
32.1
-
Friction coefficient
0.13
0.18-0.2
0.20-0.24
0.15-0.17
0.16-0.18
-
Bending strength
207
280
210
225
320
°C
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Product Packaging
Packed by plastic bags,put into Plywood cases that don't need fumigation. Other packing is customized according to client's requirements.
Company Profile
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