Ptfe seals parker hannifin 8 prdifa technology division general information 1 when to use ptfe seals in the 1960s, the addition of fillers was found to improve a number of physical properties, particularly. For wear applications requiring both high heat resistance and resistance to many acidic and alkaline solutions, this material is an excellent choice. Increased thermal resistance, sliding properties, surface hardness. A low friction and ultra low wear rate peekptfe composite article in wear 264. Unitrex lf20 offers very good dimensional stability and machinability as well as exceptional. Properties and applications compounds compounds based on ptfe and modified ptfe are filled with glass fibers, carbon fibers, carbon, graphite, molybdenum sulfide, bronze or organic fillers highperformance thermoplastics.
Ptfe is available in a variety of formulations including unfilled, glass filled, and bearing grades. Peek excellent mechanical properties including strength, rigidity, impact resistance, low wear rate and low coefficient of friction, retained over a wide range of service temperatures. Being hydrophobic, nonwetting, high density and resistant to high temperatures, ptfe is an incredibly versatile material. Ptfe polytetrafluoroethylene data sheet at curbell plastics. Victrex peek 450fe20 polyetheretherketone, 20% ptfe. Dupontteflon ptfe specifications typical properties of teflon ptfe astm or ul test property ptfe unfilled ptfe 25% glass filled ptfe 25% carbon filled physical d792 density lbin. Ptfe polytetrafluoroethylene physical properties metric english comments density 2. Most fillers are stable up to 400 c, so they do not restrict use in high temperatures. Compression molding results in lower amounts of scrap, uniform physical properties and fewer moldedin.
Technical data sheet tds physical properties of ptfe and. High performance thermoplastic material, 20 % filled with ptfe polyetheretherketone peek, semi crystalline, granules for injection moulding and extrusion, standard flow, fda food contact compliant, colour naturalbeige. Reduced deformation under load cold flow, a lower permeability and an enhanced weldability of components made of tfm modified ptfe are just some of the characteristics of this versatile product. The base grades have a melt viscosity of 100 5,000 pas, measured at 400 c, and a shear of 1 sec1. High performance thermoplastic material, 20 % filled with ptfe polyetheretherketone peek, semi crystalline, granules for injection moulding and extrusion. Ensinger special polymers offers over twenty different victrex peek blends to choose from and has the capability to blend custom compounds to suit your application. Twenty percent 20 % ptfe filled peek fe20 offers a lower coefficient of friction and improved wear rates over unfilled peek. Increased ptfe properties of hardness and wear resistance. The ptfe portfolio is topped of with ptfe or tfm modified ptfe compounds. Scanning electron microscopy revealed a unique interfacial. The paper looks at ratios by weight of 5%, 10%, 20 %, 30%, 40%, 50% and 70%. Unfilled peek provides superior fatigue resistance and good wear resistance as well, provided the maximum stress and velocity are low.
Glass filled ptfe excellent in cryogenics, he, h2 and o2. Polytetrafluoroethylene ptfe is a popular fluoropolymer, which is wellknown for its variety of applications. High performance thermoplastic material, 30% reinforced with carbon fibre ptfe polyetheretherketone peek, semi crystalline, granules for injection moulding, easy flow, fda food contact compliant, colour. Typical fillers are glass fiber, carbon fiber, graphite, moly and ptfe. Polytetrafluoroethylene ptfe is a synthetic fluoropolymer of tetrafluoroethylene. Sep 29, 2016 the paper looks at ratios by weight of 5%, 10%, 20 %, 30%, 40%, 50% and 70%. Aug 30, 2006 tests were performed in filtered, standard laboratory conditions with a nominal contact pressure of 6.
Dyneon ptfe and tfm modified ptfe are rapidly becoming the materials of choice where. Peek bearing grade, ketron hpv this grade of peek, containing carbon fiber reinforced with graphite and ptfe lubricants, offers the lowest coefficient of friction and the best machinability for all peek grades. Ensinger manufactures this material under the trade name tecapeek tf10 blue, using victrex peek 450g polymer. High performance thermoplastic material, 20 % filled with ptfe polyetheretherketone peek, semi crystalline, granules for injection moulding and extrusion, standard flow, fda food contact compliant. It exhibits improved thermal conductivity, with high load bearing capacity and hence is most. Unitrex lf20 ptfe filled peek professional plastics. This compression molded material is a victrex peek polymer modified with 20 % ptfe for increased bearing and wear properties. Properties and applications compounds compounds based on ptfe and. Porous ptfe for optical applications ptfe semifinished products compounds and semifinished products made from ptfe. This peek product is often used in the food industry due to its good mechanical, thermal and chemical properties. Add view victrex peek 450gl20 standard flow, 20 % glass fiber reinforced. In contrast, adding ptfe only to peek raises the expansion rate to about 30, yet none of these fillers change the melt temperature. Unfilled ptfe is extremely soft and formable and it is often used for chemical resistant seals and gaskets. As the filler percentage increases so does the properties.
Volume resistivity filled 1 ohmcm gore eptfe fiber flame resistant fr properties limiting oxygen index loi 95%. Compounds and semifinished products made from ptfe. Bronze filled ptfe contains a coppertin alloy providing a better creep resistance than most of the ptfe alloys. Property method units specification specific gravity astm d792 gcm 2. This material is reinforced with glass fiber at percentage varying between 540% to. Mechetec lf20 ptfe filled peek offers the performance of standard unfilled peek, with the addition of ptfe, resulting in a very lower coefficient of friction. Glass filled ptfe is reinforced with glass fibres with the percentage varying between 5% and 40% depending on the needs of the application. Pdf a study was conducted on tribological behavior of a peekmatrix composite with 20 % by volume ptfe particulates. Tribological applications with thin cross sections or long flow lengths for high strength. Peek is added into high quality virgin ptfe in different percentages in order to fulfill specific customer requirements.
Glass filled ptfe has enhanced strength and stiffness. Peek excellent mechanical properties including strength. Received 16 march 2010 received in revised form 15 november 2010 accepted 20. Intolerance to heat can appear as surface finishes that go from smooth to very rough. Ptfe filled peek is a material that exhibits extremely good sliding and wear properties. Peek, pi, aromatic polyesters, pps,ppso 2 up to 20. High performance thermoplastic material, 20 % filled with ptfe polyetheretherketone peek, semi crystalline, granules for injection moulding and extrusion, standard flow, fda food contact compliant, colour natural beige typical application areas. Ptfe seals parker hannifin 8 prdifa technology division general information 1 when to use ptfe seals in the 1960s, the addition of fillers was found to improve a number of physical properties, particularly creep and wear rate. The resulting volume percents of ptfe powder filled peek composites were 6, 9, 16 and 20. The results obtained can be seen on the graphs below. Virgin ptfe 15% peek ptfe 15 to 25% glass filled ptfe 25 to 35% carbon filled ptfe 15% graphite filled ptfe 40 to 60% bronzed filled ptfe 5 to 15% aluminium oxide 5 to 10% stainless steel filled filled ptfe ptfe.
Ptfe, but offers some additional unique benefits to the user. Ptfe is available in a variety of formulations including unfilled, glassfilled, and bearing grades. Polymer filled ptfe nonabrasive, use with soft shafts, air and vacuum applications, low out gassing and high temp capability, excellent wear resistance. Victrex peek 150fw30 peek, 30% carbon fibreptfe reinforced.
Department of mechanical and aerospace engineering, university of florida, united states article info article history. High performance thermoplastic material, 20 % filled with ptfe polyetheretherketone peek, semi crystalline, granules for injection moulding and extrusion, standard flow, fda food. As the filler percentage increases so does the properties the filler offers increased compressive strength, lower deformation under load but conversely the coefficient of friction properties of the. Bearing grade peek has an excellent combination of low friction. Add view victrex peek esd101 semi crystalline granules for injection moulding, easy. Glassmoly filled ptfe high wear resistance but can be abrasive to mating parts. Products semilavorati ptfe e stampaggio peek tafer. Ptfe has a lower coefficient of friction than peek, so it would be reasonable to assume that the value keeps increasing with the addition of. It exhibits improved thermal conductivity, with high load bearing capacity and hence is most often used in hydraulic systems. A low friction and ultra low wear rate peekptfe composite. Peek polymer polyether ether ketone guide drake plastics.
The base grades have a melt viscosity of 100 5,000. Stainless steel filled ptfe is extremely hard wearing, has excellent strength and stability under extreme loads and elevated temperatures whilst still retaining the low coefficient of friction of conventional ptfe. Being hydrophobic, nonwetting, high density and resistant to high temperatures, ptfe is an incredibly versatile material with a wide variety of applications, though its perhaps bestknown for its nonstick properties. To meet the requirements of different applications, manufacturers can adjust the properties of pure peek selectively by. High performance thermoplastic material, 30% reinforced with carbon fibre ptfe polyetheretherketone peek, semi crystalline, granules for injection moulding, easy flow, fda food contact compliant, colour black. The final dispersed powders were molded and machined using the procedure described previously. Bronze filled ptfe is both thermally and electrically conductive.
Ketron peek mitsubishi chemical advanced materials. Ptfe polytetrafluoroethylene data sheet at curbell. Property method units specification specific gravity astm d4884 gcm 1. Mechetec lf20 ptfe filled peek 20% ptfe filled peek. Bearing grades of ptfe have extremely low friction and high service temperatures. Tecapeek cm xp108 natural compression molded peek modified with 20 % ptfe. Mechetec lf20 ptfe filled peek 20% ptfe filled peek shapes.
Twenty percent 20 % ptfe filled peek fe20 offers a lower. Peek bearing grade, ketron hpv this grade of peek, containing carbon fiber reinforced with graphite and ptfe lubricants, offers the lowest coefficient of friction and. Excellent wear resistance, very low coefficient of friction. Ensinger manufactures this material under the trade name tecapeek tf10 blue. Increased sliding properties and decrease friction. Technical data sheet tds physical properties of ptfe.
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