New materials.
More efficiency.
From molecule to application.
More lifetime.
New plastics. From molecule to application.
More effciency. More Lifetime
Core competence
The company, a spin-off from the Leibniz Institute for Polymer Research Dresden e.V., has developed innovative high-performance plastics. This has been achieved through permanent chemical bonding of polytetrafluoroethylene (PTFE) with high-performance plastics such as poly ether ether ketone (PEEK), polyphenylene sulfide (PPS) and polysulfone (PSU).
Perfluorence offers customer-specific, friction-reducing, wear-resistant and self-lubricating high-performance plastics that are individually optimised for the application, on the basis of high-performance polymers and refined fluoropolymers. Perfluorence carries out basic research in the field of tribologically modified plastics.
Thanks to the chemical coupling, reactive extrusion and nanoscale fillers, a stable transfer-layer is transmitted to the counter-body and the thermochemical reactions that occur are controlled in order to reduce both friction and the wear. Depending on the polymer base and modification, these mechanisms can be used and proven with a corresponding reduction in wear, even when using water.
By influencing the bond angle within the polymer chains and the resulting increased chain mobility, the positive side effect obtained is both a more ductile material behaviour and better low-temperature behaviour.
In short: perfluorence modifies polymers at the molecular level.
A spin-off of
Winner 2014
Awarded 2011
Winner 2010
Cooperation
The upscaling of the products and the know-how of perfluorence GmbH takes place in the context of a cooperation with Wolf Kunststoff-Gleitlager GmbH.
Perfluorence GmbH materials are available in form of semi-finished products (sheets, rods, hollow rods), 3D filaments, machined and injection moulded components.
In addition, the Leibniz – Institute for Polymer Research Dresden e.V. (IPF) and perfluorence GmbH support Wolf Kunststoff-Gleitlager GmbH in basic research in the area PPS, PAEK (PEEK, PEK, PEKK), PAI, PES, PEI, LCP, PK, ETFE und PU.
The procedure
As basic material is used PTFE, which due to its high chemical resistance and reaction inertness, cannot be used for chemical and permanent bonding with other plastics.
By irradiating PTFE with high energy radiation e.g. electron beam or gamma rays, the C-C bonds of the carbon main chain and the C-F bonds are stochastically cleaved.
This takes place primarily in the amorphous phase of the PTFE.
The functional groups (-COF) and (-COOH) are then via chemical compatibilization by reactive extrusion chemically bonded (cg) on the particle surface of high-performance plastics e.g. PEEK.
SEM picture of the bonding points PTFE / PEEK
8000 fold
25000 fold
30000 fold
The advantages
The chemical bond has got a significant influence on the processing and performance properties
homogeneous distribution of the PTFE in the base polymer
| Optical appearance | ||
| Competitive product A | Competitive product B | TRIBOFÉ PEEK 1/TFcg20 |
| PEEK + 20% PTFE | PEEK + 10% PTFE | PEEK + 20% PTFE |
| physical mixture (ph) | physical mixture (ph) | chemical bonding (cg) |
 |  |  |
| PTFE particles are visible | PTFE particles are visible | PTFE particles are not visible |
increased (notch) impact strength
| Mechanical properties | |||
| Competitive product B | Competitive product A | TRIBOFÉ PEEK 1/TFcg20 | |
| PEEK + 20% PTFE | PEEK + 10% PTFE | PEEK + 20% PTFE | |
| physical mixture (ph) | physical mixture (ph) | chemical bonding (cg) | |
| Notched impact strength DIN / ISO 179 [kJ/m²] | 12 | 6 | 19 |
| Tensile modulus DIN / ISO 527[MPa] | 3400 | 3200 | 3200 |
| Tensile strength DIN / ISO 527[MPa] | 86 | 76 | 78 |
Increasing of wear resistance and reduction of friction
| Tribological properties | ||
| Competitive product B | TRIBOFÉ PEEK 1/TFcg10 | |
| PEEK + 20% PTFE | PEEK + 20% PTFE | |
| physical mixture (ph) | chemical bonding (cg) | |
| friction coefficient ASTM G137 | 0,26 | 0,22 |
| wear ASTM G137 [mm³/Nm x 10^-6] | 3200 | 3400 |
| temperature of the counter body ASTM G137 [C°] | 76 | 86 |
| Test conditions | ||
| surface pressure | 6MPa | |
| sliding speed | 1m/s | |
| counter body | 100Cr6; 60HRc; 3,2μm Rz |
| Tribological properties block on ring | ||
| Competitive product D | TRIBOFÉ PEEK 1/TFcg10 | |
| PEEK + 10% PTFE | PEEK + 10% PTFE | |
| physical mixture (ph) | chemical bonding (cg) | |
| friction coefficient DIN / ISO 7148[-] | 0,3 | 0,22 |
| wear DIN / ISO 7148 [mm³/Nm x 10^-6] | 0,8 | 0,6 |
| Test conditions | ||
| tangential force | 100N | |
| sliding speed | 0,11m/s | |
| counter body | 100Cr6; 60HRc; 3,2μm Rz |
- avoiding of „deposits“ which act as defects or „internal“ notches
- stable (processing) morphology
The possibilities
- Tribofe PEEK-PTFE-cg
- Tribofe PEK-PTFE-cg
- Tribofe PEKK-PTFE-cg
- Tribofe PPS-PTFE-cg
- Tribofe PEI-PTFE-cg
- Tribofe PSU-PTFE-cg
- Tribofe LCP-PTFE-cg
Thanks to the chemical compatibilisation of high – performance plastics with polytetrafluoroethylene (PTFE) are generated thermoplastic compound with a homogeneous and stable process morphology. The thermal and chemical resistance correspond to the properties of the matrix material. Furthermore, the plastic granules can be processed under the processing conditions of the matrix material by extrusion or injection moulding.
Additional functional properties
According to customer requirements, additional properties can be integrated into the compound.
- Adjustment of the colour
- Increasing of the thermal conductivity
- Increasing of the electrical conductivity up to electrical
conductor (surface resistance ≤ 10^2Ω) - Detectability by metal detectors
- Fittings for antibacterial / antimycotic effectiveness
Product shapes perfluorence by Wolf
Perfluorence GmbH solely sells compounds in granulate form. Your demand for
Ihren Bedarf an
- Semi-finished products (solid bars, hollow rods, plates)
- Finished parts according to customer drawings
(machined from semi-finished products or injection moulded)
can be ordered directly by our cooperation partner Wolf Kunststoff-Gleitlager GmbH (www.zedex.de).
Send us an Request for Quotation
Here you will find more information about our high-performance polymers.
What is your challenge today?
Ask the right questions to let us develop the ideas to win it!
