Daikin America: Fluoropolymers
Daikin fluoropolymers are engineered and manufactured to be used in extreme environments and conditions. For each product type we have created a wide number of grades, allowing you to select the melt flow index, particle size, melting point, strength, flex life, or other polymer property that meets your application need. Our technical service professionals will assist you in selecting the right product for your needs. Our staff of scientists and engineers at our Technical Center in Deactur, Alabama is available to help you design the right fluoropolymer for your existing and emerging opportunities.
PTFE Molding Powders
Daikin PTFE (polytetrafluoroethylene) has the highest melting point and lowest friction, and is the most inert of all the fluoropolymers. It has a continuous service temperature rating of 260 Deg C (500 deg F). Molding powders are excellent, fine cut granular resins, well suited for a variety of demanding chemical, mechanical, electrical and non-stick surface applications. Molding powders are available in homopolymer and modified grades. Typical applications include thin skived film for electronic parts, laboratory equipment, gaskets, diaphragms, O-rings, slide bearings, V-rings, pump parts, seals, sheet lining, mold release films, filled compounds, bellows, impellers, containers and high purity bags.
PTFE Fine Powders
Daikin PTFE Fine Powder is a white agglomerated PTFE powder produced from emulsion polymerization of tetrafluoroethylene. PTFE has an extremely low dielectric constant for a solid polymeric material. PTFE films can also be expanded into microporous membranes, fibers, tubes, and films. Daikin Fine Powder products are designed for paste extrusion applications such as wire insulation, tubing, tapes and expanded film. Fine Powder PTFE readily absorbs organic solvents, which allow for the formation of a paste that can easily be extruded. Typical applications are sintered and unsintered tapes, thread seal tapes, expanded gaskets, tubing, convoluted tubing, heat shrinkable tubing, profile extrusion, wire insulation, coaxial wire insulation, fibers, filtration membrane, and apparel membrane. Homopolymer and copolymer grades are available.
Daikin PTFE Dispersions are milky-white aqueous dispersions of stabilized minute PTFE particles designed for release coatings and impregnation of media. PTFE is extremely resistant to weathering and can be used for architectural applications where 20 years and longer service is required. PTFE impregnation improves the chemical stability, heat resistance, chemical resistance, low friction properties, release properties, and dielectric characteristics of the media. PTFE Dispersions are used for impregnating yarns, packing materials, glass cloth and other media, release coatings for cookware and industrial applications, circuit board laminates, belting, filter bags and media and flexible ductwork.
Daikin FEP (Fluorinated Ethylene Propylene copolymer) is a melt processible fluoropolymer. Although it is lower melting than PTFE, it still maintains a continuous service temperature of 200 Deg C. Because FEP is fully fluorinated like PTFE, it is extremely inert, has excellent electrical properties, high chemical stability, low friction, excellent long term weathering and very good low temperature properties. It is used in high speed wire insulation, cable jacketing, extruded film, blown film, sheet extrusion, tubing, heat shrinkable tubing, catheters, molded parts, and equipment and pipe linings. Daikin provides a wide range of melt flow indexes to choose from, as well as standard copolymer grades and modified copolymer grades that have improved mechanical properties.
Daikin PFA (Perfluoro Alkoxy) is a copolymer of TFE and perfluoroalkyl vinyl ether. Like PTFE and FEP, it is fully fluorinated. Like FEP, it is melt processible. PFA has a continuous service temperature from -200 Deg C to +260 Deg C. Like PTFE, PFA has extreme chemical inertness, excellent slip and release properties, and excellent electrical properties. PFA also has excellent high temperature mechanical properties. Daikin produces two types of PFA, industrial grades and semicondutor or “SH” grades. Both types can be easily processed by extrusion, compression molding, injection molding, transfer molding, or other typical plastics processing methods. Semiconductor grades have the additional benefit of being extremely low in metal and fluoride ion extractions, meeting all semiconductor requirements for ultrapure chemical tubing and associated equipment. Typical applications are injection molded parts, medical devices, extruded wire insulation, tubing, film and sheet lining. Anti-static industrial grades are also available.
Daikin ETFE is an alternating copolymer of ethylene and tetrafluoroethylene. Although not fully fluorinated like PTFE, FEP and PFA, ETFE maintains many of the high performance characteristics such has high temperature (continuous service temperature of 150 Deg C), 20-year weathering, very good electrical properties, and very good chemical inertness. And, ETFE is tougher and more abrasion resistant than the fully fluorinated products, making it ideally suited for demanding applications such as oil and gas down hole cable and umbilicals, low permeation automotive fuel tubing, aerospace wire and cable, and photovoltaic top sheets films. ETFE is also widely used for release films used in the manufacture of carbon fiber composites. ETFE is melt processible and Daikin provides grades with a range of melt flow index to suit your manufacturing process. Daikin also makes ETFE that can be adhered to polyamide for multilayer tubing without the use of adhesive or tie layer.
EFEP is a polymer unique to Daikin. It is a terpolymer of ethyelene, tetrafluoroethylene, and hexafluoropropylene. It was designed to have many of the mechanical properties of ETFE, but with a lower processing temperature, allowing it to be coextruded with conventional thermopostic polymers. EFEP is also designed to adhere to many conventional plastics such as polyamide, EVOH, and modified polyethylene without the use of adhesives or tie layers. It is used in monowall tubing, multilayer tubing, low permeation automotive fuel hose, catheters and blow molded bottles and containers. It can be extruded, injection molded and blow molded.
Daikin PCTFE is a homopolymer of chlorotrifluoroethylene. PCTFE is melt processible and can be extruded or molded. PCTFE has a number of unique properties. In addition to excellent thermal and chemical stability, it has very low moisture absorption and permeation. It also is highly resistant to cold flow, is very rigid, is tough, has excellent dimensional stability and extremely good low temperature properties. It is especially applicable as a valve component material in cryogenic fluid service.