{"product_id":"cawezpm","title":"Zirfon Porous Membrane (PPS85a, UTP220, UTP500, ALK12a) for Alkaline Water Electrolyzer, CAWEZPM","description":"\u003cp\u003eZirfon is an industry-standard separator\/membrane technology specifically engineered for alkaline water electrolyzers (AWE). It is a composite material, typically consisting of a polymer matrix (often polysulfone) filled with hydrophilic ceramic particles (usually zirconium oxide, ZrO2).\u003c\/p\u003e\n\u003cp\u003eIt uses an asymmetric organic polymer matrix—typically polysulfone (PSU)—reinforced with an internal fabric mesh (like polypropylene or PPS) to provide mechanical tensile strength and prevent sagging or tearing in large-scale industrial stacks. Zirconium oxide (ZrO2) nanopowder is embedded heavily throughout the polymer matrix. The ZrO2 serves a critical purpose: it makes the inherently hydrophobic polymer highly hydrophilic (water-wettable). It has a highly controlled porosity (typically around 50% to 60%) with a mean pore size of roughly 0.15 μm and a maximum pore cut-off around 0.5 μm.\u003c\/p\u003e\n\u003cp\u003eBecause the pores are macroscopic compared to molecular dimensions, gas separation and ionic conductivity are governed by competing physical mechanisms: (1)\u003cstrong\u003e Ionic Conductivity via Tortuosity\u003c\/strong\u003e: OH- ions do not hop through the polymer itself; they travel through the liquid KOH trapped inside the membrane's tortuous pore network. The ionic resistance is heavily dependent on the bubble effect. Keeping H2 and O2 separate relies completely on the capillary pressure of the water-filled pores. Because the ZrO2 renders the pores completely wetted by the liquid electrolyte, it requires a significant physical pressure difference—known as the bubble point pressure (often greater than 1 to 2 bar)—for a gas bubble to force its way through a pore. As long as the differential pressure between the anode and cathode loops is kept below this threshold, gas crossover remains extremely low.\u003c\/p\u003e\n\u003ctable style=\"height: 498px;\" width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 35.6px;\"\u003e\n\u003ctd style=\"height: 35.6px; width: 14.7482%;\"\u003e\u003cem\u003ePart Number\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"height: 35.6px; width: 21.0432%;\"\u003e\n\u003cp\u003eCAWEZPMPPS85a\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 35.6px; width: 21.936%;\"\u003e\n\u003cp\u003eCAWEZPMUTP200\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 35.6px; width: 20.51%;\"\u003e\n\u003cp\u003eCAWEZPMUTP500\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 35.6px; width: 20.8633%;\"\u003e\n\u003cp\u003eCAWEZPMALK12a\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.2px;\"\u003e\n\u003ctd style=\"height: 39.2px; width: 14.7482%;\"\u003e\u003cem\u003eMembrane Name\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"height: 39.2px; width: 21.0432%;\"\u003e\n\u003cp\u003ePPS85a\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 39.2px; width: 21.936%;\"\u003e\n\u003cp\u003eUTP220\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 39.2px; width: 20.51%;\"\u003e\n\u003cp\u003eUTP500\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 39.2px; width: 20.8633%;\"\u003e\n\u003cp\u003eALK12a\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.6px;\"\u003e\n\u003ctd style=\"height: 35.6px; width: 14.7482%;\"\u003e\u003cem\u003eMaterial\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"height: 35.6px; width: 21.0432%;\"\u003e\n\u003cp\u003ePPS\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 35.6px; width: 21.936%;\"\u003e\n\u003cp\u003ePPS+ZrO2\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 35.6px; width: 20.51%;\"\u003e\n\u003cp\u003ePPS+ZrO2\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 35.6px; width: 20.8633%;\"\u003e\n\u003cp\u003eMicroporous\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.6px;\"\u003e\n\u003ctd style=\"height: 35.6px; width: 14.7482%;\"\u003e\u003cem\u003eThickness (um)\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"height: 35.6px; width: 21.0432%;\"\u003e\n\u003cp\u003e850\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 35.6px; width: 21.936%;\"\u003e\n\u003cp\u003e220\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 35.6px; width: 20.51%;\"\u003e\n\u003cp\u003e500\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 35.6px; width: 20.8633%;\"\u003e\n\u003cp\u003e120\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 10px;\"\u003e\n\u003ctd style=\"height: 10px; width: 14.7482%;\"\u003e\u003cem\u003eBubble Point Pressure\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"height: 10px; width: 21.0432%;\"\u003e\n\u003cp\u003e-\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 10px; width: 21.936%;\"\u003e\n\u003cp\u003e2 bar\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 10px; width: 20.51%;\"\u003e\n\u003cp\u003e2 bar\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 10px; width: 20.8633%;\"\u003e\n\u003cp\u003e≥0.14 MPa\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.2px;\"\u003e\n\u003ctd style=\"height: 39.2px; width: 14.7482%;\"\u003e\u003cem\u003eArea Resistance\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"height: 39.2px; width: 21.0432%;\"\u003e\n\u003cp\u003e≤0.2 Ω cm2\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 39.2px; width: 21.936%;\"\u003e\n\u003cp\u003eLow\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 39.2px; width: 20.51%;\"\u003e\n\u003cp\u003eLow\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 39.2px; width: 20.8633%;\"\u003e\n\u003cp\u003eUltra Low\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.2px;\"\u003e\n\u003ctd style=\"height: 39.2px; width: 14.7482%;\"\u003e\u003cem\u003eGas Permeability\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"height: 39.2px; width: 21.0432%;\"\u003e\n\u003cp\u003e-\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 39.2px; width: 21.936%;\"\u003e\n\u003cp\u003e-\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 39.2px; width: 20.51%;\"\u003e\n\u003cp\u003e-\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 39.2px; width: 20.8633%;\"\u003e\n\u003cp\u003e≥2 mm\/s\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.2px;\"\u003e\n\u003ctd style=\"height: 39.2px; width: 14.7482%;\"\u003e\u003cem\u003eTensile Strength (MPa)\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"height: 39.2px; width: 21.0432%;\"\u003e\n\u003cp\u003e\u0026gt;100\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 39.2px; width: 21.936%;\"\u003e\n\u003cp\u003e\u0026gt;100\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 39.2px; width: 20.51%;\"\u003e\n\u003cp\u003e\u0026gt;100\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 39.2px; width: 20.8633%;\"\u003e\n\u003cp\u003e\u0026gt;100\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.2px;\"\u003e\n\u003ctd style=\"height: 39.2px; width: 14.7482%;\"\u003e\u003cem\u003eWorking Temperature\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"height: 39.2px; width: 21.0432%;\"\u003e\n\u003cp\u003e≤110 °C\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 39.2px; width: 21.936%;\"\u003e\n\u003cp\u003e 110 °C\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 39.2px; width: 20.51%;\"\u003e\n\u003cp\u003e≤110 °C\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 39.2px; width: 20.8633%;\"\u003e\n\u003cp\u003e≤110 °C\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 55.2px;\"\u003e\n\u003ctd style=\"height: 55.2px; width: 14.7482%;\"\u003e\u003cem\u003eApplication Cases\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"height: 55.2px; width: 21.0432%;\"\u003e\n\u003cp\u003eResearch \u0026amp; Education AWE\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 55.2px; width: 21.936%;\"\u003e\n\u003cp\u003eLow Resistance AWE\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 55.2px; width: 20.51%;\"\u003e\n\u003cp\u003eAWE Industrial Hydrogen Production\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 55.2px; width: 20.8633%;\"\u003e\n\u003cp\u003eHigh Current AWE for R\u0026amp;D\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 55.2px;\"\u003e\n\u003ctd style=\"height: 55.2px; width: 14.7482%;\"\u003e\u003cem\u003ePackage Grade\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"height: 55.2px; width: 21.0432%;\"\u003e\n\u003cp\u003e\u003cspan\u003e10cm * 10cm\/pcs\/pack\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 55.2px; width: 21.936%;\"\u003e\n\u003cp\u003e\u003cspan\u003e10cm * 10cm\/pcs\/pack\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 55.2px; width: 20.51%;\"\u003e\n\u003cp\u003e\u003cspan\u003e10cm * 10cm\/pcs\/pack\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 55.2px; width: 20.8633%;\"\u003e\n\u003cp\u003e\u003cspan\u003e10cm * 10cm\/pcs\/pack\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003eA larger sheet size of 20cm*20cm also can be supplied upon request\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUse Note\u003c\/strong\u003e:\u003c\/p\u003e\n\u003cp\u003e(1) \u003cstrong\u003eRinsing with DI water\u003c\/strong\u003e: 30min-12 h to increase the wettability and fully open the microporous structures.\u003c\/p\u003e\n\u003cp\u003e(2) \u003cstrong\u003eKOH activation\u003c\/strong\u003e: Immersion in 20-30 wt% KOH at 60°C for 2-24 h.\u003c\/p\u003e\n\u003cp\u003e(3) \u003cstrong\u003eVacuum Degassing\u003c\/strong\u003e: Remove the bubbles inside porous structure for 10-20 min under vacuum level ≤ 0.08 MPa.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eReferences\u003c\/strong\u003e:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S1385894723060850\"\u003eK. Denk, et al., Mass transfer limitation phenomena across the separator in a zero-gap alkaline water electrolysis stack: Anion-selective polymer electrolyte membrane vs. Zirfon™ Perl UTP 500 case study, Chemical Engineering Journal, 2024, 479, 147354\u003c\/a\u003e \u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.sciencedirect.com\/science\/article\/abs\/pii\/S0360319925048220\"\u003eQ. Sun, et al., A Zirfon-type membrane based on exfoliated layered double hydroxide for advanced alkaline water electrolysis, International Journal of Hydrogen Energy, 2025, 182, 151819\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"CLKXZ","offers":[{"title":"PPS85a","offer_id":47925575581926,"sku":"CAWEZPMPPS85a","price":49.0,"currency_code":"USD","in_stock":true},{"title":"UTP220","offer_id":47925575614694,"sku":"CAWEZPMUTP220","price":199.0,"currency_code":"USD","in_stock":true},{"title":"UTP500","offer_id":47925575647462,"sku":"CAWEZPMUTP500","price":149.0,"currency_code":"USD","in_stock":true},{"title":"ALK12a","offer_id":47925575680230,"sku":"CAWEZPMALK12a","price":129.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/6591\/1526\/files\/CAWEZPM_main.png?v=1782573249","url":"https:\/\/echemsupplies.com\/products\/cawezpm","provider":"EChem Supplies","version":"1.0","type":"link"}