Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Fillers Included
- Polymer Name
- Technologies
Features & Benefits
- Materials Features
- Product Highlights
Depending on the type and proportion of such fillers, it is possible to:
- increase the compressive strength, especially at high temperatures
- improve creep properties (lower cold flow)
- improve the wear resistance
- increase the thermal and electrical conductivity
- reduce the coefficient of thermal expansion improving the dimensional stability
By the way, the use of fillers will give the material a lower tensile strength and a poorer elongation at break. The type of filler can influence the chemical resistance and the coefficient of friction too. Thanks to its own compounding unit, Flontech has an extensive experience not only in the compound of PTFE with standard fillers such as glass fiber, carbon, graphite, bronze and molybdenum disulphide, but also in the development of new high performance filled PTFE grades thanks to special fillers such as ceramic, PEEK, PPS, PI, LCP, carbon fiber and nano materials.
Applications & Uses
- Applications
- Plastics & Elastomers End Uses
Properties
- Typical Properties
- Properties
The mechanical properties have been evaluated from a 50x50 mm rod. molded and sintered according to the following conditions:
preforming pressure 30 Mpa for all PTFE virgin grades and compounds with filler content ≤10%) 50 Mpa for compounds with filler content >10% syntering cycle total time of 15 hrs, with 2 hrs and 40 min at max temperature of 370°C
| Value | Units | Test Method / Conditions | |
| Filler Type | Hard carbon | — | — |
| Nominal Filler Content | 25,0 | — | — |
| Specific Gravity | 2.12 | g/cm³ | ASTM D792 |
| Tensile Strength (Cross Direction) | 20,0 | MPa | ASTM D4894 |
| Elongation at Break (Cross Direction) | 100 | % | ASTM D4894 |
| Radial Shrinkage | 2,1 | % | — |
| Hardness | 63 | Shore D | — |
| Deformation under Load at 140 Kg/cm2 for 24h at 23°C (Moulding Direction) | 5,8 | % | ASTM D621 |
| Deformation under Load at 140 Kg/cm2 for 24h at 23°C (Cross Direction) | 4,9 | % | ASTM D621 |
| Permanent Deformation after 24h relaxation at 23°C (Moulding Direction) | 2,1 | % | ASTM D621 |
| Permanent Deformation after 24h relaxation at 23°C (Cross Direction) | 1,8 | % | ASTM D621 |
| Compressive stress 1% Deformation (Cross Direction) | 11,0 | — | ASTM D695 |
| Compressive stress 25% Deformation (Cross Direction) | 37,5 | — | ASTM D695 |
| Compressive stress 25% Deformation (Cross Direction) | 40,0 | — | ASTM D695 |
| Coefficient of Linear Thermal Expansion at 25-100°C (Moulding Direction) | 11,6 | 10-5/°C | ASTM D696 |
| Coefficient of Linear Thermal Expansion at 25-100°C (Cross Direction) | 6,7 | 10-5/°C | ASTM D696 |
| Coefficient of Linear Thermal Expansion at 25-150°C (Moulding Direction) | 12,7 | 10-5/°C | ASTM D696 |
| Coefficient of Linear Thermal Expansion at 25-150°C (Cross Direction) | 7,2 | 10-5/°C | ASTM D696 |
| Coefficient of Linear Thermal Expansion at 25-200°C (Moulding Direction) | 14 | 10-5/°C | ASTM D696 |
| Coefficient of Linear Thermal Expansion at 25-200°C (Cross Direction) | 8,5 | 10-5/°C | ASTM D696 |
| Coefficient of Linear Thermal Expansion at 25-250°C (Moulding Direction) | 15,4 | 10-5/°C | ASTM D696 |
| Coefficient of Linear Thermal Expansion at 25-250°C (Cross Direction) | 10 | 10-5/°C | ASTM D696 |
| Thermal Conductivity | 0,59 | W/m.K | ASTM C177 |
| Volume Resistivity | 1.00E+04 | Ohm-cm | ASTM D257 |
| Wear Coefficient (PV = 10 Kg.m/(cm2.min)) | 30-40 | 10^-8.cm3.min/Kg.m.h | INTERNAL |
| Friction Coefficient PTFE/Steel Static (Roughness: 0.25-0.35 µ) | 0,15 | — | ASTM D1894 |
| Friction Coefficient PTFE/Steel Dynamic (Roughness: 0.25-0.35 µ) | 0,11 | — | ASTM D1894 |