Polytetrafluoroethylene an overview sciencedirect topics. Chemours was a spinoff from dupont, which originally discovered the compound in 1938. Influence of ptfe content in peekptfe blends on mechanical. Unfilled peek proved to be fairly good wearresistant material but exhibited high. Ptfe polytetrafluoroethylene is a material with several unique properties. However, the very properties that make ptfe coatings so useful in such applications also make it very difficult to form ptfe coatings which are sufficiently adherent to their substrates. Overview of fluoropolymer materials professional plastics. Ptfes low coefficient of friction, excellent electrical properties, high chemical resistance, and stability in wide temperature ranges make it a choice material for electrical and thermal applications like coil separators and terminals, as well as hightemperature seals, insulators, and bearings. When talking about the material mechanical properties, tensile strength and elongation at break are usually the topics before others. The tendency of ptfe to deform into largeaspectratio fibrillar structures during melt blending, and developing topological interactions i.
It has excellent chemical resistance, is unaffected by nearly all chemicals, and has a very high oxygen index i. This substitution enhances a number of ptfes properties, including thermal stability, chemical resistance, electrical. Ptfe polytetrafluoroethylene data sheet at curbell. Standard standard ptfe, for example, has an exceptionally wide thermal appli.
Ptfe can be used for a wide range of applications and products what we do. There are many popular filled grades ptfe products brand named as trexonn, turcite b, rulon ar, rulon aj gold having specific. The basis for this is the chemically exceptionally stable carbonfluorine molecular structure. Virgin unfilled grade ptfe unfilled ptfe, made from virgin ptfe resin, is extremely soft and formable and it is often used for chemical resistant seals and gaskets. Polytetrafluoroethylene ptfe is a synthetic fluoropolymer of tetrafluoroethylene that has numerous applications. Please contact boedeker plastics for more information about other filled ptfe products for your application. We focused on the physical properties of ptfe in relation to its application as a material for use in prostheses and dental devicesinstruments. Ptfe s low coefficient of friction, excellent electrical properties, high chemical resistance, and stability in wide temperature ranges make it a choice material for electrical and thermal applications like coil separators and terminals, as well as hightemperature seals, insulators, and bearings. All properties presented in this handbook should be considered as typical values and are not to be used for specification purposes. Apt typically molds and machines the daikin neoflon m400h grade of pctfe. The properties and advantages of ptfe aft fluorotec. Polyfluron ptfe is a virginal paste extruded ptfe exhibiting exceptional thermal, chemical, mechanical and electrical properties.
Ptfe polytetrafluoroethylene data sheet at curbell plastics. Another popular brand name of ptfe is syncolon by synco chemical corporation. Ptfe is the material of choice for gaskets, vessel linings, pump interiors, washers, rings, seals, spacers, dip tubes and welldrilling components because it is corrosion resistant and chemically inert. Ptfe is one of the best insulating materials and is often used in electrical applications. Ptfe the mechanics ptfe applied coatings ptfe teflon. The material has a propensity to exhibit considerable elastic deformation under load. Ptfe properties ptfe material high performance plastic. Ptfe is one of a class of plastics known as fluoropolymers. Ptfe is material with exceptionally low coefficient of friction. Ptfe polytetrafluoroethylene is a synthetic fluoropolymer of tetrafluoroethylene and is known for being one of the most versatile plastics available. Pvdf has a very good creep resistance that is superior to that of other fluoropolymers.
The specific polymerization process of patentpending tsmart ptfe has the ability to reach exceptional performance properties over the virgin ptfe in mechanical, chemical, and thermal applications. Polytetrafluoroethylene ptfe, a strong, tough, waxy, nonflammable synthetic resin produced by the polymerization of tetrafluoroethylene. Technical data sheet tds physical properties of ptfe. These properties render ptfe very valuable for forming protective surface coatings, in a wide range of applications from nonstick cookware to surgical sutures. C ptfe is commonly used in backup rings and as a component of specialty seals within a wide range of markets. 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. For more specific values, follow the links immediately below. Both our material formulation and postprocessing steps are optimized to produce parts that meet your most stringent specifications. Ptfe products and grades too many to be listed here.
The universal chemical resistance of polyfluron ptfe allows the operation with nearly all kinds of aggressive media. Ptfe properties are often enhanced using a variety of fillers creating a ptfe compound, such as a 15 or 25% glass filled ptfe, to improve wear resistance, increase part stability, and improves creep strength and reduce deformation under load in comparison with virgin grade ptfe. Ptfe polytetrafluoroethylene ptfe is a soft, low friction fluoropolymer with outstanding chemical resistance and weathering resistance. It is stable to high temperatures and has a very low coefficient of friction. Standard specification for polytetrafluoroethylene ptfe.
Technical data sheet tds physical properties of ptfe and. Ptfe compounded with fillers like glass fibers, carbon, graphite, bronze, mos2, peek etc. However, these two properties, though the most common ones, do not always carefully reflect the behavior of the material itself in some applications, while compressive properties are actually the most important ones. Ptfe plastic soft, low friction material curbell plastics. Park valley corporate center 1155 phoenixville pike suite 103 west chester, pa 19380 phone. The density of different ptfenanoeg composites reinforced with. Aft fluorotec produce moulded rods and tubes in ptfe and filled ptfe compounds such as but not limited to carbon, glass, bronze, stainless steel, polymer, mineral and. Abrasive wear performance of the blends on the other hand, deteriorated with increasing amount of ptfe. If you were trying to invent a highly flexible, chemical resistant, thermal resistant, nonstick and electrically resistant material, and it hadnt already been done, youd be hoping you could come up with a material somewhere nearly as good as ptfe is in these areas. Technical properties property test method characteristic backing material ptfe film backing thickness in 0. Because it is nonwettable and absorbs only negligible amounts of water, it retains its high resistivity in damp, polluted environments. Most mechanical properties depend strongly on the processing conditions, which influence density, strength, elasticity, hardness and dielectric characteristics. Consequently, in applications that require a frictionless surface and resistance to load, such as bearing surfaces, the deformation characteristics of ptfe are improved with the use of additives and fillers. Material description glass filled ptfe carbon filled ptfe colour black notes the addition of fillers to the ptfe improves or modifies its properties depending upon the nature and quantity of filler.
Pvdf is mainly used in critical applications requiring an excellent chemical resistance, a high degree of purity and excellent mechanical properties. Fluoroplastics has successfully bonded 116th inch ptfe to steel support rails for use in a steel pickling operation, where the processed steel was bathed in a light sulphuric acid bath to modify its surface. Ptfe polytetrafluoroethylene physical properties metric english comments density 2. Its superior nonstick properties prevent the accumulation of conductive deposits. Known by such trademarks as teflon, fluon, hostaflon, and polyflon, ptfe is distinguished by its slippery surface, high melting point, and resistance to. Uses of teflon and properties with its sample paper pdf to. The contents include the requirement for construction of materials, dimensions together with standard test procedure. Ptfe material safety data sheet product identification product name.
Ptfe resin does not flow when it melts and cannot be injection molded. Sci entifically teflon is called polytetrafluroethylene ptfe. Typical properties of ptfe astm or ul test property ptfe ptfe ptfe unfilled 25% glass filled 25% carbon filled physical d792 density lbin. The effects of temperature, pressure, and absorptivity of the chemicals in ptfe, and their interaction, are what in time usually limit the conditions under which ptfe will perform satisfactorily. The properties of ptfe include three common variations. The physical properties of the sintered ptfe were measured and the. Identification of the substancemixture and of the companyundertaking trade name. Plunkett 1 9101994 in 1938 and was used as a commercial product in 1946. Ptfe is a highly useful plastic material polytetrafluoroethylene ptfe. Physical data boiling point f na freezing point f volatility volume % na melting point. Performance properties and applications of polytetrafluoroethylene. This material also holds wras, nsf61, dvgw w270, ktw portable water approvals. Ptfe mechanical properties are low compared to other polymers, but its flexibility at low temperatures is a key feature.
Ptfe is also available in a tape, fabric, and tubing. Many peculiar properties such as high thermal conductivity in composite form, mechanical strength, hydrophobicity, and chemical inertness have. Article pdf available december 2011 with 825 reads. The graph bars on the material properties cards further below compare ptfe to. Another popular brand name of ptfe is syncolon by synco chemical. Polytetrafluoroethylene ptfe is a synthetic fluoropolymer of tetrafluoroethylene. Density range of ptfe parts produced by conventional technologies. Polytetrafluoroethylene is a highly crystalline robust unique plastic with a high melting point. Tsmarts unique snapback capability may enable use of ptfe in existing nonptfe applications, and may additionally help eliminate costly reforming processes. Mechanical properties improved by improving ptfe hardness while typically reducing cold flow or creep. Unfilled ptfe sheet, made from virgin ptfe resin, is extremely soft and formable and it is often used for chemical resistant seals and gaskets.
The wellknown brand name of ptfe based formulas is teflon by chemours. Sep 05, 2001 polytetrafluoroethylene ptfe is a totally fluorinated polymer which is white, semiopaque, and semicrystalline. Stocked materials typically ship in 25 business days. Polytetrafluoroethylene ptfe is high performance engineering plastics having unique properties. Ptfe is used extensively in many different industries. The physical properties of 3d printed ptfe parts are comparable to those of conventionally produced parts.
Pdf the properties of polytetrafluoroethylene ptfe in. We have several search tools, listed above, that give you more efficient methods to reach the information that you need. The 30% ptfe blend showed excellent combination of. A polymer is a compound formed by a chemical reaction which combines particles into groups of repeating large molecules. With superior properties offering a host of functional and cost benefits. This is a polymer which has repeatin g chains of cf 2cf 2 in it. Glassfilled ptfe glassfilled ptfe has enhanced strength and stiffness. Glass 15% and mo2s molybdenum disulfide 5% filled, grey ptfe offers greater wear properties and resistance to cold flow. Ptfe tailored for top performance and functional reliability ptfe the material that provides the basis for technical solutions in a wide range of applications. Ptfe lined pipe and fittings specification for ptfe lined pipe and fitting 1. Typical properties of ptfe astm or ul test property ptfe unfilled ptfe 25% glass filled ptfe 25% carbon filled physical d792 density lbin.
A resin material for possible use in dental prostheses and devices. Properties method unit unfilled ptfe typical values filled ptfe type of filler % approx. Ptfe is stable at temperatures up to 500f and it is often used in high temperature environments. Ptfe also has excellent electrical insulating properties. Pctfe is a tough, durable fluoroplastic that exhibits unique physical and mechanical properties. Pdf preparation and mechanical properties of ptfenanoeg. Rouxel4 in comparing a material s resistance to distort under mechanical load rather than to alter in volume, poissons ratio offers the fundamental metric by which to compare the performance of any material when strained elastically. Carbon 25% filled, dark grey ptfe has excellent wear and frictional properties well suited for dynamic. The graph bars on the material properties cards below compare unfilled ptfe to. Since this is different from almost any other material of construction, it requires careful consideration of the more detailed explanations which follow. Many common synthetic fibers are polymers, such as polyester and nylon. It has the highest strength and highest ductility compared to the other variants of ptfe. Compounds and semifinished products made from ptfe.
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