New PTFE High-Performance Material Enables Single-Layered Diaphragm Seals

PTFE on the Advance
The High-Performance Plastic Finds a Steadily Increasing Field of Applications

In the field of life sciences, a wide range of plastics are used. Depending on the application, in addition to basic material properties, processing possibilities, service life (single use/re-usability), existing approvals and the associated costs are of paramount importance.

The amendment of the Medical Products Act (MPG) in Germany, in March 2010, places an even higher priority than before on patient safety. This has accelerated the need of improving component safety and traceability, not only for implants but also for equipment components. As a result, innovative forms of marking are becoming increasingly important, and developers are placing a stronger focus now on plastics which previously were used only for highly special applications.

PTFE High-performance Polymers
The Great Freedom of Fluoropolymers

ChemicaI resistance, working temperatures up to 250°C and exceptional slip properties: An injection moldable fully fluorinated polymer combines these properties with a high degree of design freedom. This PTFE high-performance polymer and its customized compounds therefore open a new dimension in potential applications and cost effective system solutions.

The Better Alternative
PTFE System Solutions Enhance Equipment Performance

The use of modified PTFE, also as a highly filled compound, in combination with a new welding technology enables the production of components which are fully made of PTFE for high-capacity reactors in the chemical industry.
Particularly due to the nearly unlimited diversity of designs such components allow optimum reaction conditions to be achieved even in high-capacity reactors. Users benefit from high reaction yields, low quantities of by-products and reduced costs for product treatment.

Small Parts with High Capabilities

High-Performance Plastics Solutions for Static and Dynamic Automotive Applications

Functions like "dynamic sealing" and "dynamic bearing support" of shafts, pistons and rods are increasingly handled by high-performance plastics. Requirements like sealing higher pressures or supporting shafts and guiding pistons in various systems require heavy-duty materials like compounds based on Moldflon and PEEK.

High-Performance Test Rigs Reduce Shaft Seal Development Cycles

Solid Lip Seal Statement

Customers today increasingly demand proof of the functionality of custom-designed radial shaft seal rings (oil seals) in special applications. The application of a manufacturer of pumps for diesel engines described below shows how the functionality of radial shaft seal rings in a special application was demonstrated on the test rigs for shaft seals.

Tribologically Valuable

New friction bearing versions provide the design engineer with a material that combines many properties which were previously available only separately with different friction bearings. In addition, this new development means that the design engineer does not have to accept any compromise in the case of difficult tribological applications. The key to success is called Moldflon.

Conformant Sealing Action
Sealing of Axially Moved Valve Spindles According to TA Luft

Modified PTFE

Virtually unlimited creativity Large-scale PTFE system solutions

Substances produced and used in the chemical industry are often aggressive, toxic, flammable, or harmful. This means that emissions need to be strictly avoided. Products that have high purity requirements must be protected against contamination by metals and other materials in the plant. Components and systems made from PTFE and modified PTFE presented below have nearly universal application and long service life, and protect both the products and the environment from contamination.

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Where Other Materials Fail Versatile Uses of PTFE High-Performance Plastics in Automobiles

As an innovation in the area of PTFE, a new material, Moldflon, recently opened up the opportunity to manufacture PTFE parts by means of injection-molding technology. Particularly with high volumes, this represents an economically attractive alternative. The following article describes some areas of application in the automotive sector.

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In Good Shape
More Degrees of Freedom for Seals Made of Thermoplastically Processed PTFE

The PTFE "MoldfIon," which is suitable for thermoplastic processing, allows seals to be injection-molded. New degrees of freedom with regard to shaping enable complex assembly component geometries to be achieved. In the past, such geometries could only be manufactured by means of complex cutting or machining processes. In addition, the material offers benefits like improved cold flow and lower wear.

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ElringKlinger drives satellites

Working in cooperation with the Institute of Space Systems (IRS) at Stuttgart University, ElringKlinger Kunststofftechnik GmbH, Bietigheim/Germany, has developed a method whereby PTFE (Polytetrafluoroethylene) can be used as a fuel for satellite propulsion systems...

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USING NEW DEGREES OF FREEDOM

PTFE as an engineering material: Moldflon expands the range of fluoropolymers Conventionally, seals, valve seats and other functional components exposed to high temperatures and high pressure loads have not been manufactured from fluorinated high-performance plastics. A new fluoropolymer now marks the beginning of the fluorine era for such applications as well..

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High-Performing PTFE Compounds Open Up New Areas of Application

New developments in the field of PTFE are making this material more and more attractive to design engineers. New filler combinations and processing techniques continuously open up new areas of ap-plication. Four examples illustrate these developments

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