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Bietigheim-Bissingen, Germany

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.


Trademark
ElringKlinger Kunststofftechnik GmbH | Date: 2009-03-03

[ Attachment parts for machines and machine apparatus and for motors, engines and gears, except motors, engines and gears for vehicles, of plastics, namely, valves, valve covers, exhaust manifolds, oil pans, oil separator covers, filler caps being machine parts and heat shields; ] parts of plastic for machine and machine apparatus construction, and for motor and gear construction, other than the construction of motors and gears for vehicles, [ namely, push rod protective tubes, dampening elements for guide bushings, rubber-sheathed bearing bushings, dust and protection caps, pistons and piston guides, nozzles, fixing and transport rollers for machines or apparatus, expansion bellows, membranes for pumps, ] namely, [ pump diaphragms, ] electric insulators, [ heat insulators, heating elements, * lip seals, * grooved rings, ] * sleeve bearings, * slide bearings, [ collars, ] support rings and tubes. [ Diaphragms for scientific apparatus; electric switches, electric switches for household appliances; structural parts and fittings for the aforesaid goods ]. Parts of plastic for use in medical technology, namely, [ tracheostomy tubes, drainage tubes for medical purposes, catheter tubes, ] tubes for endoscopic devices [, tubes for papillotoms, pumps for medical purposes and dosimeters for medical devices, and trocars ]. Attachments for motors, engines and gears for vehicles, of plastics, namely, [ gear shifts, valve covers, exhaust manifolds, oil pans, oil separator covers, filler caps, heat shields, pistons and piston guides, nozzles, expansion bellows, electric insulators, heat insulators, heating elements, * lip seals, * grooved rings, * sleeve bearings, * slide bearings, collars, ] support rings [ and tubes ] ; parts of plastic for motor, engine and gear construction for vehicles, namely, [ pistons and piston guides, nozzles, expansion bellows, electric insulators, heat insulators, heating elements, lip seals, sleeve bearings, collars, ] support rings [ and tubes ]. Plastic film for commercial and industrial use; [ fibers of plastics not for textile use for use in manufacturing; ] flexible pipes, not of metal; plastic semi-worked products, namely, films, [ sheets, tubes, bars, ] rods, [ fabrics for use in manufacturing, plastic sheeting for coatings or linings for guides, pistons and housings, ] laminates comprising plastics for use in manufacturing, composite material comprising plastics for use in manufacturing [, plastic sheaths for cables and wires]; non-metal seals for use in construction of machinery and apparatus, and construction of motors, engines and gears, except construction of motors, engines and gears for vehicles, of elastomer materials and/or of plastics, namely, [ cylinder head gaskets, rotary shaft seals, valve cover gaskets, valve stem sealings, oil seals, oil pan seals, intake manifold seals, ] water pump seals [, cylinder head cover seals, carburetor air filter sealings, cylinder head cap seals, camshaft carrier seals, ramming chamber seals, push rod space seals, valve shaft seals, O-rings and shaped rings; non-metal seals for use in construction of motors, engines and gears for vehicles, of elastomer materials and/or of plastics, namely, cylinder head gaskets, rotary shaft seals, valve cover gaskets, valve stem sealings, oil seals, oil pan seals, intake manifold seals, water pump seals, chain case seals, crankcase seals, cylinder head cover seals, carburetor air filter sealings, cylinder head cap seals, camshaft carrier seals, ramming chamber sealings, push rod space seals, valve shaft seals, O-rings and shaped rings ]. [ Fibers of plastics for textile use ].


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.


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.

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