| Material: | PTFE Filled Glass Fiber |
|---|---|
| Water Absorption: | ＜0.01% |
| Contraction Percentage: | ＜0.4% |
| Tensile Strength: | 18-30 MPa |
| Density: | 2.1-2.5 g/cm3 |
| Shore D: | 70-80 |
| Samples: |
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| Customization: |
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Audited Supplier PTFE material resists attack by heat and virtually all chemicals. It is insoluble in all organics with the exception of a few exotic strong base chemicals. Its electrical properties are excellent. Although it has high impact strength, its resistance to wear, tensile strength and creep resistance are low in comparison to other engineering type thermoplastics. Mechanical properties can be improved by adding fillers such as glass fibers, bronze, Delrin, carbon, and graphite.
The most common carbon filled PTFE composition is 75% Virgin PTFE with 25% Carbon powder by weight.
When a filler ratio or type is unspecified, it is fair to assume this is the material. However it doesn't tell the whole story. The type and percentage of carbon added to PTFE is a variable and is critical to material performance.
It can be as little as 0.2% and as much as 40%. Different percentages of carbon will display different material properties and performance.
Something that is often overlooked is that different types of carbon powder can also affect the material integrity and performance. To achieve the optimum physical properties and performance from any filled PTFE it is essential that the properties and type of fillers used are understood.
Not all 25% carbon filled PTFE materials are the same, in fact they can be extremely different.
• Excellent corrosion resistance
• Good electrical insulation performance
• High temperature resistance
• Low coefficient of friction
• Good non-sticky properties
PTFE semi-finished rod,tube and sheet is widely used in chemical anti-corrosion,mechanical seal,engineering piping,electrical insulation,pump&valve fluid,aviation,textile,ceramic and other industries.
1). PTFE Sheet (Skived sheet and mold compression board)
2). PTFE Rod ( Extruded rod and mold compression rod )
3). PTFE Pipe/Hose (full specification)
4). PTFE etched sheet, PTFE with filler(carbon, glassfiber, bronze...Etc. )
5). PTFE machined parts
| Property | Norm | Value |
| Density(g/cm³) | ISO1183 | 1.8~2.5 |
| Tensile Strength at Break(Mpa) | ISO527 | 18~30 |
| Modulus of Elasticity(Gpa) | ISO527 | 0.35~0.5 |
| Elongation at break(%) | ISO527 | 150~350 |
| Hardness Shore(Shore D) | Durometer | 50~65 |
| Temperature Range(°C) | / | -196~260 |
| Coefficient of Linear Thermal Expansion(10-4/°C) | ISO11359 | 1.0 |
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