ElringKlinger Kunststofftechnik GmbH

Bietigheim-Bissingen, Germany

ElringKlinger Kunststofftechnik GmbH

Bietigheim-Bissingen, Germany
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Frick A.,Aalen University of Applied Sciences | Sich D.,Aalen University of Applied Sciences | Heinrich G.,Leibniz Institute of Polymer Research | Heinrich G.,TU Dresden | And 3 more authors.
Journal of Applied Polymer Science | Year: 2013

For the first time, blends of melt processable polytetrafluoroethylene (MP PTFE) with polyetheretherketone (PEEK) in the MP PTFE/PEEK ratio of 100/0, 80/20, 50/50, 20/80, and 0/100 w/w were prepared and characterized. MP PTFE/PEEK blends are attractive materials due to the combination of low coefficient of friction and universal chemical resistance of MP PTFE with good wear resistance and mechanical strength of PEEK while maintaining high thermal stability of both. Miscibility, phase morphology, and mechanical properties of the new MP PTFE/PEEK blends were investigated. To improve their end-use properties, an attempt of reactive compounding with the electron beam irradiated MP PTFE (e-beam MP PTFE) was made. The reactive compounding was done in two steps, that is, the preparation of a masterbatch (MB) consisting of e-beam MP PTFE/PEEK (50/50 w/w) and subsequent melt blending of MP PTFE/PEEK with varying concentrations of MB. The e-beam irradiation of MP PTFE carried out in air atmosphere and at room temperature with a dose of 50 kGy results in its chain scission associated with formation of COF and COOH functional groups. Such modified MP PTFE can be used to compatibilize MP PTFE/PEEK blends. Reactive compatibilized blends exhibit improved phase morphology and mechanical properties. Especially for MP PTFE/PEEK 50/50 blends, a great improvement of almost 250% in strain at break, 40% in stress at break, and more than 600% in toughness was achieved. © 2012 Wiley Periodicals, Inc.


Frick A.,Aalen University of Applied Sciences | Stern C.,ElringKlinger Kunststofftechnik GmbH | Michler G.,Martin Luther University of Halle Wittenberg | Henning S.,Martin Luther University of Halle Wittenberg | Ruff M.,Aalen University of Applied Sciences
Macromolecular Symposia | Year: 2010

Polypropylene samples in a wide molecular weight range between approx. 100 kg/mol to 1 600 kg/mol were processed by injection molding to thin walled micro specimens with respect to study shear induced crystallization phenomena under high shear rate and subsequently possible self reinforcement effects. The specimens nano structures were investigated and related deformation behavior under tensile studied. Novel morphologies have been detect and their micromechanical mechanism interpret and summarized. Copyright © 2010 WILEY-VCH Verlag GmbH & Co. KGaA.


Frick A.,Aalen University of Applied Sciences | Sich D.,ElringKlinger Kunststofftechnik GmbH | Heinrich G.,Leibniz Institute of Polymer Research | Heinrich G.,TU Dresden | And 3 more authors.
Macromolecular Materials and Engineering | Year: 2013

The influence of molecular weight and comonomer content on the mechanical properties of several melt-processable polytetrafluoroethylene (MP PTFE) materials is studied. Additionally, a comparison of mechanical properties including tensile properties and their dependence on environment as well as fatigue life of PTFE, MP PTFE and perfluoroalkoxy copolymer (PFA) is made. PTFE homopolymer and PTFE copolymers exhibit considerably different mechanical properties. The small strain deformation behaviour up to yielding correlates with the degree of crystallinity and comonomer content, whereas the large strain deformation was found to depend on intercrystalline connections, such as tie molecules and chain entanglements. The special role of these elements in determining the fatigue life and sensitivity to environmental stress cracking is also demonstrated. The paper discusses the relationship between structure and mechanical properties of several melt processable polytetrafluoroethylene (MP PTFE) materials. The influence of molecular weight and comonomer content on the tensile properties, environmental stress cracking resistance as well as fatigue life is considered and the comparison of the new PTFE materials with PTFE homopolymer and PFA copolymers is made. Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.


Frick A.,Aalen University of Applied Sciences | Sich D.,Aalen University of Applied Sciences | Heinrich G.,Leibniz Institute of Polymer Research | Heinrich G.,TU Dresden | And 2 more authors.
Macromolecular Materials and Engineering | Year: 2012

A new melt-processable PTFE material is presented and characterized that provides new and economical solutions in polymer technology while bridging the gap between perfluorinated PTFE and fluorothermoplastic materials such as perfluoroalkoxy resins. Thermal transitions, MW and MWD, and microstructures of the melt-processable PTFE materials are investigated and compared to standard PTFE, modified PTFE, and PFA materials. The influence of the polymerization type used for the preparation of the melt-processable PTFE (emulsion and suspension polymerization) on the MWD and the comonomer distribution are discussed. Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.


Trademark
ElringKlinger Kunststofftechnik GmbH | Date: 2013-01-01

Unprocessed fluoropolymers for use in industry; unprocessed fluoropolymer mixtures for use in industry; unprocessed fluoropolymer compounds for use in industry; fluoropolymers in granule form for use in industry; fluoropolymer mixtures in granule form for use in industry; fluoropolymer compounds in granule form for use in industry. Plastic parts for construction of machines and machine apparatus, motors, engines and machine gears, namely, support rings. Circuit boards. Plastic film for commercial and industrial use; semi-finished products, namely, films and tubes made of plastics; films made of plastics; Plastic parts for construction of machines and machine apparatus, motors, engines and machine gears, namely, electric insulators.


Trademark
ElringKlinger Kunststofftechnik GmbH | Date: 2015-09-15

Heat exchangers being parts of machines; rotor elements for heat exchangers being parts of machines, namely, rotatable heat accumulators; regenerators for heat exchangers being parts of machines, namely, heat accumulators; structural parts and fittings for the aforesaid goods. Heat exchangers not being parts of machines; heat exchangers for chemical processing not being parts of machines; heat exchangers for the treatment of flue gases not being parts of machines; rotor elements for heat exchangers not being parts of machines, namely, rotatable heat accumulators; regenerators for heat exchangers not being parts of machines, namely, heat accumulators; structural parts and fittings for the aforesaid goods.

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