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PolytetrafluoroethyleneParticle SizeBlood Vessel ProsthesisPolyethylene TerephthalatesFluorocarbon PolymersPopliteal ArteryFemoral ArteryArteriovenous Shunt, SurgicalVirionGraft Occlusion, VascularAnastomosis, SurgicalBlood Vessel Prosthesis ImplantationVascular PatencyCoated Materials, BiocompatibleMicroscopy, ElectronSignal Recognition ParticleVeinsNanoparticlesVirus AssemblyMaterials TestingProsthesis DesignAerosolsLegVaccines, Virus-Like ParticleMicroscopy, Electron, ScanningSubmitochondrial ParticlesSurface PropertiesParticulate MatterFreeze FracturingIschemiaCell LineCapsidMicrospheresParietal BoneIliac ArterySaphenous VeinCentrifugation, Density GradientAlpha ParticlesTime FactorsTibial ArteriesLatexCapsid ProteinsReoperationScandinaviaDefective VirusesKidneys, ArtificialColloidsInclusion Bodies, ViralPolyurethanesSilicon DioxideAir PollutantsSiliconesPolystyrenesInhalation ExposureVehicle EmissionsArterial Occlusive DiseasesPowdersRibonucleoproteinsLipoproteins, HDLMolecular Sequence DataVirus ReplicationGuided Tissue RegenerationProsthesis FailureSurgical MeshVirosomesSuture TechniquesViral ProteinsRenal DialysisEquipment DesignMicroscopy, Electron, TransmissionCatheters, IndwellingViral InterferenceRNA, ViralCryoelectron MicroscopyGelatinApolipoprotein A-ISuturesVascular Access DevicesGene Products, gagFemoral VeinPolymersDrug CarriersTissue AdhesionsPostoperative ComplicationsPolyestersLipoproteinsHernia, VentralTitaniumFollow-Up StudiesMetal NanoparticlesFreeze EtchingAngiographyLipoproteins, LDLAmino Acid SequencePhagocytosisProspective StudiesBase SequenceProsthesis-Related InfectionsElementary ParticlesDogs
PolytetrafluoroethyleneTeflonFiltrationHydrophobicMembranePolymersUltrafine particlesAirbornePlasticsPorosityPowderGraphiteThermoplasticDisperseHarmful particlesDispersionAerosolsSizeLaminateShear stressAdapterTemperatureInterfacialCoefficients of frictionFumesFiltersUtilizeParticulateConventionalPlasticGasketMicronsUnlikeBacteriaFilterStainless steelOptimalReductionProductsProcessSmallerPrimarilySheetsSolidNylonConsistencyAdditionallySurfaceMadeFinePropertiesPerformanceMechanismEfficientlyHigh qualityProduceApplications
Polytetrafluoroethylene7
Teflon3
  • The original Proplast (Proplast I) was black and consisted of Teflon (PTFE) and graphite. (medscape.com)
  • Employees were concerned with potential exposure to airborne particles and fumes created during the manufacture of polytetrafluroethylene (PTFE, Teflon) and thermoplastic rotating ring seals. (cdc.gov)
  • Exposure to PTFE fume due to overheating of Teflon® cookware in home kitchens has resulted in polymer fume fever in people and death for pet birds. (msdmanuals.com)
Filtration4
  • This operation is usually carried out with the aid of filtration media - the filter, which helps to perform the function of having the concerned matters or particles captured or isolated. (porex.com)
  • On the large end of the spectrum, the Particle Filtration usually deals with matter or particles visible to the human naked eye, such as sands, grains, saw dusts or human hair. (porex.com)
  • As you can see, the filtration media or the filter is the most critical component in a filtration process to separate the targeted matters or particles. (porex.com)
  • There are some discrepancies in measurement - ISO, a separate organisation defines HEPA filtration as being able to remove 99.95% of MPPS particles (the most difficult to capture). (dyson.com.au)
Hydrophobic2
  • PTFE is hydrophobic: neither water nor water-containing substances wet PTFE, as fluorocarbons demonstrate mitigated London dispersion forces due to the high electronegativity of fluorine. (china-sealings.com)
  • 3) Wide fold spacing and smooth, hydrophobic PTFE provide excellent particle release. (cnhlfilter.com)
Membrane2
  • The PTFE membrane filter cartridges are designed for pharmaceutical, semiconductor and other critical applications. (filtnews.com)
  • FEV series all fluorine filter cartridge adopts PVDF cage and ECTFE support, and the high porosity PTFE membrane is welded and sealed by high-temperature hot-melt technology. (membrane-solutions.com)
Polymers1
  • These adverse health effects were associated with the presence of nanoscale particles comprised of decomposition products, including polymers, in the fumes, which can reach deep into the lung and access the pulmonary interstitium [12]. (cdc.gov)
Ultrafine particles2
  • Personal Impactor collects coarse/fine/ultrafine particles. (thomasnet.com)
  • We conclude from our study that the CNS can be targeted by airborne solid ultrafine particles and that the most likely mechanism is from deposits on the olfactory mucosa of the nasopha- ryngeal region of the respiratory tract and subsequent translocation via the olfactory nerve. (cdc.gov)
Airborne3
  • Workers in the facilities hosting plastic processers and printers could be exposed to airborne nano- and microplastic particles. (cdc.gov)
  • For example, the NIOSH Nanotechnology Center demonstrated that existing exposure mitigation techniques such as local exhaust ventilation and High Efficiency Particulate Air filters effectively reduce concentration of airborne particles including those in the nanoscale [13]. (cdc.gov)
  • Sioutas Cascade Impactor separates and collects airborne particles in 5 size ranges: greater than 2.5 micron, 1.0-2.5 micron, 0.50-1.0 micron, 0.25-0.50 micron, and less than 0.25 micron. (thomasnet.com)
Plastics3
  • Small particles of plastics are often referred to as microplastics (plastic particles smaller than 5 mm [1]) and nanoplastics (the nanoscale fraction of plastic particles). (cdc.gov)
  • Saint-Gobain Performance Plastics careful selection of resin type, particle size, temperature and pressure produces smooth, non-porous, dimensionally stable tubing. (bigbrandwater.com)
  • Pure PTFE sheet is featured by the best anti-chemical and dielectric properties among the already known plastics. (china-sealings.com)
Porosity3
  • This in turn can lead to the increased harboring of bacteria and eventual contamination of a clean manufacturing process ( Figure B ). Calendared PTFE has a much lower porosity than skived PTFE materials and minimizes these unwanted effects. (foodmanufacturing.com)
  • Due to its unique microscopic structure resulting in extremely low porosity, Calendared PTFE has the ability to be exposed to higher concentrations of cleaning chemicals for longer periods of time. (foodmanufacturing.com)
  • 18.5mN/m @ 68°F) and low porosity dramatically reduces the risk that microorganisms grow and contamination occurs on calendared PTFE. (foodmanufacturing.com)
Powder1
  • PTFE Elements are ideal for fine powder removal applications where pulse cleaning of the filter element is desirable. (solbergmfg.com)
Graphite2
Thermoplastic2
  • The ergonomics evaluation consisted of a walk through of the plant to view the variety of job tasks workers perform to produce PTFE and thermoplastic seals, subassembly systems, and plastic mating components. (cdc.gov)
  • A network of poly(tetrafluoroethylene) (PTFE) microfibers in a thermoplastic polyurethane (TPU) was prepared by melt mixing the TPU with solid PTFE particles. (degruyter.com)
Disperse2
  • Our PTFE dispersion uses this know how to disperse very fine PTFE particles. (mpuni.co.jp)
  • Polyethylene particles disperse into the joint fluid surrounding a THA. (medscape.com)
Harmful particles2
  • And, BarriAire Gold Hoods offer more protection from harmful particles and contaminants in the areas that pose greatest risk of exposure. (wfrfire.com)
  • BarriAire Gold Hoods combine an outer layer of PGI proprietary gold FR fabric and an inner layer of ultra‑lightweight, DuPont Nomex Nano Flex fabric, which can inhibit penetration of many small size harmful particles. (wfrfire.com)
Dispersion2
  • In the process of developing our inks, we perfected the technology of ultrafine particle dispersion. (mpuni.co.jp)
  • Incorporate the advantages of PTFE in your plastic system using our dispersion! (mpuni.co.jp)
Aerosols1
  • In those five decades, NIOSH helped with establishing methods to characterize aerosols including particle size and shape distribution, concentration, and chemical composition and to minimize exposure to them. (cdc.gov)
Size7
  • As particles range in size and texture, they require different trapping methods to be effectively removed. (dyson.com.au)
  • Machine offers particle size reduction ratio up to. (thomasnet.com)
  • Surfactants contribute to the latex particle formation, their size and stability and they enhance the compatibility with the EP formula components, as well as ingredients used in product formulations, i.e., coatings, and pressure sensitive adhesives (PSAs). (coatingsworld.com)
  • This paper presents novel, eco-friendly surfactants and their use in the EP process and discusses surfactant ionic activity and its effects on particle size and process cleanliness. (coatingsworld.com)
  • These small-particle-size latexes are application driven - i.e., the need for high gloss or fewer coalescent aids and good penetration at the substrate. (coatingsworld.com)
  • The APDA-372 dust monitor is specifically designed for indoor and outdoor air quality measurements and provide continuous and simultaneous measurements of PM1, PM2.5, respirable fractions (PM4), thoracic fractions (PM10), inhalable fractions (TSP), the particle number, and (upon request) the particle size distribution in 32 size classes per decade within the particle size range of 0.18 - 18 µm. (horiba.com)
  • 100 nm) are ubiquitous in ambient urban and indoor air from multiple sources and may contribute to adverse respiratory and cardiovascular effects of particulate matter (PM). Depending on their particle size, inhaled UFP are efficiently deposited in nasal, tracheobronchial, and alveolar regions due to diffusion. (cdc.gov)
Laminate2
  • This jacket is constructed of a nylon-shell exterior and featrues a waterproof, breathable PTFE laminate which is tough, durable, and utilizes 37.5® micro-particle technology. (sportbiketrackgear.com)
  • v. 1 Performance of non-woven nylon filter bags -- v. 2 Performance of non-woven polyester filter bags -- v. 3 Performance of filter bags made from expanded PTFE laminate -- v. 4 Bag aging effects -- v. 5. (epa.gov)
Shear stress3
  • Proplast was discontinued after it was shown to delaminate under shear stress, form particles, and induce an inflammatory reaction. (medscape.com)
  • Higher shear stress was found to be the critical parameter for producing thinner PTFE fibers, rather than the shear rate imposed by the mixer. (degruyter.com)
  • Shear stress transfer from the melt to the PTFE crystal results in solid phase plastic deformation, and the efficiency of the deformation depends on the shear stress in the matrix. (degruyter.com)
Adapter1
  • Liquid-tight joining of injection-moulded halves of an adapter, without loose particles if possible. (telsonic.com)
Temperature1
  • Bag cleaning technology (high temperature tests) -- v. 6 Influence of dust properties on particle penetration. (epa.gov)
Interfacial1
  • The magnitude of the coefficient of friction was found to correlate with the interfacial area between PTFE and TPU generated by the microfiber network. (degruyter.com)
Coefficients of friction2
  • All of the PTFE fiber/TPU composites show lower coefficients of friction compared with the neat TPU. (degruyter.com)
  • PTFE has one of the lowest coefficients of friction of any solid. (china-sealings.com)
Fumes1
  • The initial request noted that workers were experiencing non-specific respiratory symptoms, itchy skin, and "oven fever" (presumably from exposure to PTFE fumes generated during the manufacturing process). (cdc.gov)
Filters3
  • HEPA filters can capture 99.95% of particles including bacteria and potentially some viruses. (dyson.com.au)
  • The best HEPA filter grades are awarded to filters that have a higher particle capture efficiency. (dyson.com.au)
  • Unit is used with PTFE filters for minimal particle bounce and preservation of unstable compounds and clips to worker's collar or lapel for personal or area sampling. (thomasnet.com)
Utilize1
  • Further down the spectrum, we will need to use more specialized instrument such as a Scanning Electron Microscope (SEM) to observe the concerned matters or particles and utilize a more complicated Ultrafiltration process to separate them. (porex.com)
Particulate1
  • Highest air permeability of particulate fire hoods on the market at 23 cfm, approximately 3-6 times greater than PTFE laminated hoods. (wfrfire.com)
Conventional1
  • When tested in an MIT Folding Endurance Tester, the flex life of calendared PTFE is four-times greater than conventional PTFE materials. (foodmanufacturing.com)
Plastic2
  • A dense cluster composed of multiple smaller nanoscale particles collected in a workplace using multiple 3D printers with plastic filament (Courtesy of A. Knepp, NIOSH). (cdc.gov)
  • Securing the metal drive plate in an adjustable and low-particle manner onto a plastic disc data carrier. (telsonic.com)
Gasket2
  • Shown (in Figure D) is a comparison of calendared PTFE in gasket form to an EPDM gasket after the gaskets were used in a standardized EHEDG testing guideline (Doc. (foodmanufacturing.com)
  • PTFE Tape for SWG is for making spiral wound gasket, Expanded PTFE tape with high quality is also available. (china-sealings.com)
Microns1
  • When a filter's performance is defined as HEPA, it means that it can capture up to 99.97% of particles down to 0.3 microns (about one-millionth of a metre). (dyson.com.au)
Unlike2
  • Unlike the skived process that is commonly used for PTFE manufacturing, the calendaring process produces uniform sheets of material with consistent physical properties. (foodmanufacturing.com)
  • Unlike laminated PTFE barrier hoods, BarriAire™ Gold Hoods are quiet and allow excellent hearing. (wfrfire.com)
Bacteria4
  • These particles include milled flour, coal dust, blood cell and some bacteria. (porex.com)
  • As Lead Engineer Ben Lowson explains, particle pollutants range from "dust mites and allergens to pollen and bacteria. (dyson.com.au)
  • Some lower cost PTFE offerings may contain an excessive volume of pores within their structure which can harbor organic contaminants such as bacteria. (foodmanufacturing.com)
  • Distinguished by an extremely low void content, calendared PTFE resists permeation and the accumulation of foreign matter, reducing the risk of harboring unwanted bacteria or residual media. (foodmanufacturing.com)
Filter5
  • Usually made from glass-fibre or PTFE materials, a HEPA air filter resembles randomly arranged strands. (dyson.com.au)
  • Larger particles: are trapped by and stick to the net-like structure of filter fibres. (dyson.com.au)
  • Smaller particles: follow airflow and are intercepted by the filter. (dyson.com.au)
  • Smooth particles: diffused air forces smooth particles to move erratically, causing them to collide with filter fibres and become stuck. (dyson.com.au)
  • To do the most in a home environment, a HEPA filter air purifier needs to balance how well it can filter particles with how quickly it works. (dyson.com.au)
Stainless steel1
  • This positions calendared PTFE as a superior sealing option over compression molded (skived) PTFE, rubber materials such as EPDM and 316 stainless steel. (foodmanufacturing.com)
Optimal1
Reduction1
  • However, for macroscale PTFE agglomerates, the reduction in the coefficient of friction is mostly affected by the uneven distribution of PTFE in the bulk and on the molded part surface. (degruyter.com)
Products2
  • Packaging keeps products visible and particle free. (usplastic.com)
  • Avoid personal care products with "perfluor-," "polyfluor-," and "PTFE" on the label. (greensciencepolicy.org)
Process3
  • To achieve this, the unique manufacturing process orients the chains of PTFE in a lattice-like structure that reduces voids in the material and provides it with biaxial strength. (foodmanufacturing.com)
  • While undergoing the SIP process, most PTFE materials, owing to their permeability, allow steam to penetrate or become trapped in voids, causing defects such as blisters in the material. (foodmanufacturing.com)
  • Unfortunately, this process promotes the migration of silicon particles to the surface of these castings. (pioneermetal.com)
Smaller1
  • Smaller than that will be Microfiltration where the matters or particles can only be observed by using an optical microscope. (porex.com)
Primarily1
  • PTFE is leveraged primarily for its electrical and chemical properties. (artist-3d.com)
Sheets3
  • Modified PTFE Sheets are in order to meet the needs of customers to different working conditions, and reduce the cost. (china-sealings.com)
  • Kaxite research and design the modified ptfe sheets. (china-sealings.com)
  • Kaxite has three styles of PTFE sheets. (china-sealings.com)
Solid2
  • Gore-Tex is an expanded PFTE sheeting composed of fine expanded PFTE fibrils held together by solid expanded PTFE nodes. (medscape.com)
  • It also provides all the benefits of PTFE lubrication without any of the consistency problems associated with solid lubricants. (magnalube.com)
Nylon1
  • Newer materials have been developed, including soft materials (eg, nylon mesh, expanded PTFE) and harder materials (eg, high-density polyethylene, hydroxyapatite compounds). (medscape.com)
Consistency1
  • PTFE, a material with a spongy consistency, is an ethylene monomer with 4 fluorine moieties attached. (medscape.com)
Additionally1
  • Additionally, BarriAire Gold Hoods are not loud like PTFE laminated hoods, which can adversely affect a firefighter's ability to communicate and situational awareness. (wfrfire.com)
Surface2
  • Our PTFE elements offer excellent pressure drop performance and offer exceptional release characteristics due to their smooth surface. (solbergmfg.com)
  • According to Graffeo, Magnalube's PTFE component forms a thin persistent film on the surface of the lock components. (magnalube.com)
Made2
  • The key to their longevity is internal bearing surfaces made from phosphor bronze and lubricated with Magnalube-G PTFE grease . (magnalube.com)
  • In addition, all of CenturionPro Quantanium non-stick coated tumblers are made without PTFE/PFOA . (htgsupply.com)
Fine1
  • They are used in applications where extremely fine particles must be captured and removed from the air stream. (solbergmfg.com)
Properties1
  • The opposite is true for skived PTFE where variable properties lead to varying performance and reliability. (foodmanufacturing.com)
Performance1
  • This gives calendared PTFE a renowned reputation for predictable performance and quality. (foodmanufacturing.com)
Mechanism2
  • Nano- and microplastic particles (NMPPs) can be formed through environmental and mechanical degradation (the top-down mechanism). (cdc.gov)
  • Inflammation could be compounded by adverse biological response to chemicals and metals also in the particles (the "Trojan horse" mechanism). (cdc.gov)
Efficiently1
  • The Remote switch features hands-free operation of the SOLAIR portable particle counter enabling the user to efficiently sample in compliance with ISO 14644. (golighthouse.com)
High quality1
  • Magnalube-G features a proprietary formulation: it suspends PTFE lubricating particles in high-quality base oils and uses non-soap elastomeric thickeners. (magnalube.com)
Produce2
  • Wear results when surfaces produce local mechanical damage and unwanted loss of material and the resultant generation of wear particles. (medscape.com)
  • Wear particles produce a series of responses on both cellular and tissue levels. (medscape.com)
Applications2
  • Calendared PTFE is a premium grade PTFE designed for use in aseptic applications requiring ultra-high purity standards. (foodmanufacturing.com)
  • Chemfluor® PTFE Tubing also services numerous applications in the automotive, electrical and appliance markets. (bigbrandwater.com)