{"product_id":"ptfe-nanopowder-50-100-nm-dupont-as-electrode-additive-for-hydrophobic-gas-diffusion-layer-gdl-10-g-bottle-chgdleanptfe","title":"PTFE Nanopowder (50-100 nm, Dupont) as Electrode Additive for Hydrophobic Gas Diffusion Layer (GDL), 10 g\/bottle, CHGDLEANPTFE","description":"\u003cdiv style=\"margin: 0cm 0cm 0pt;\" class=\"MsoNormal\"\u003e\n\u003cdiv class=\"content-wrapper-child  custom-product-description\"\u003e\n\u003cp\u003eIn the fabrication of Gas Diffusion Layers (GDL) for fuel cells and electrolyzers, Polytetrafluoroethylene (PTFE) nanopowder serves as the primary hydrophobic agent. Its role is to balance the \"competing\" transport of gases (reactants) and liquid water (products) within the porous structure of the carbon paper or cloth.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHydrophobicity and Water Management\u003c\/strong\u003e: The GDL must remain \"dry\" enough to allow gases (H2, O2, or CO2) to reach the catalyst layer. PTFE nanopowder coats the carbon fibers, increasing the contact angle of water. This creates hydrophobic channels that prevent the GDL from \"flooding\" (saturating with liquid water), which would otherwise block gas transport and \"choke\" the cell. By tuning the PTFE content, manufacturers control the capillary pressure within the pores, actively pushing produced water out toward the flow channels.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBinding and Structural Integrity\u003c\/strong\u003e: PTFE acts as the \"glue\" for the Microporous Layer (MPL)—the thin coating of carbon black applied to the GDL base. During the high-shear mixing or \"calendering\" process, PTFE nanopowder undergoes fibrillation, where the particles stretch into microscopic \"cobwebs\" or fibrils. These fibrils lock the carbon black particles together, creating a robust, flexible, and crack-resistant film.\u003c\/p\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cem\u003ePart Number\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cspan\u003eCHGDLEANPTFE (C-HGDL-EA-NPTFE)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cem\u003eAppearance\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cspan\u003eWhite fine powder\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cem\u003eDensity\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cspan\u003e2.14-2.20 g\/cm3\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cem\u003eAverage Powder Sizes\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cspan\u003e(1) 50 nm\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e(2) 100 nm\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eOther powder sizes of 200 nm, 500 nm also can be supplied upon request\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cem\u003eMelting Point\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cspan\u003e327 °C\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cem\u003eThermal Deformation Temperature\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cspan\u003e120-130 °C\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cem\u003eTensile Strength\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cspan\u003e20-35 MPa\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cem\u003eCompression Strength\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cspan\u003e12-15 MPa\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cem\u003eContinuous Operation Temperature\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cspan\u003eFrom -200°C to +260 °C\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cem\u003ePackage Size\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e10 g\/bottle (100g, 200g, and 500g also can be supplied upon request)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eNotes\u003c\/strong\u003e: Please try to store the PTFE nanopowder in the dry place. \u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv class=\"cus-ref-zone\"\u003e\n\u003cdiv class=\"cus-ref-zone__title\"\u003eReferences\u003c\/div\u003e\n\u003col class=\"cus-ref-zone__list\"\u003e\n\u003cli\u003e\u003cspan\u003e\u003ca href=\"https:\/\/pubs.acs.org\/doi\/abs\/10.1021\/acsenergylett.2c01555\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eY. Wu, et al. Mitigating Electrolyte Flooding for Electrochemical CO2 Reduction via Infiltration of Hydrophobic Particles in a Gas Diffusion Layer, ACS Energy Lett. 2022, 7, 9, 2884–2892\u003c\/a\u003e.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003ca href=\"https:\/\/www.sciencedirect.com\/science\/article\/abs\/pii\/S0378775322010758\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eE, M. Can, et al. Superhydrophobic fluorinated carbon powders for improved water management in hydrogen fuel cells, J. Power Sources, 2022, 548, 232098\u003c\/a\u003e. \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003ca href=\"https:\/\/www.sciencedirect.com\/science\/article\/abs\/pii\/S0378775325003295\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eJ. Lee. Hoang, et al., Directly integrated membrane-electrode assembly with a macroporous-carbon functional layer for the flexible operation of fuel cells under varying humidity, J. Power Sources, 2025. 636, 236493\u003c\/a\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Thasar S.r.l.","offers":[{"title":"50","offer_id":57744837804358,"sku":"CHGDLEANPTFE50","price":0.0,"currency_code":"EUR","in_stock":true},{"title":"100","offer_id":57744837837126,"sku":"CHGDLEANPTFE100","price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0533\/5600\/3482\/files\/ptfe-powder-ultraflon-mp-series-500x500_d82ddf90-48c3-404a-a579-8972a07c922a.jpg?v=1737592979","url":"https:\/\/www.thasar.com\/products\/ptfe-nanopowder-50-100-nm-dupont-as-electrode-additive-for-hydrophobic-gas-diffusion-layer-gdl-10-g-bottle-chgdleanptfe","provider":"Thasar S.r.l.","version":"1.0","type":"link"}