{"product_id":"mse-pro-pei-18h-polyethyleneimine-25-kg-barrel","title":"MSE PRO PEI-18H Polyethyleneimine, 25 kg\/Barrel","description":"\u003ch2\u003eMSE PRO PEI-18H Polyethyleneimine, 25 kg\/Barrel\u003c\/h2\u003e\n\u003ch3 class=\"text-4 mb-4\"\u003e\u003cspan class=\"font-weight-bold\"\u003eIntroduction \u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"text-4 mb-4\"\u003e\u003cspan class=\"font-weight-bold\"\u003ePEI-18H\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ePolyethylenimine\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a medium-to-low molecular weight grade in the SIOResin® PEI product series (\u003cstrong\u003emolecular weight: 1800\u003c\/strong\u003e). It appears as a colorless or pale yellow viscous liquid with a slight ammonia odor. PEI-18H contains abundant primary (-NH₂), secondary (-NH-), and tertiary (-N\u0026lt;) amine groups, combining polar (amine) and hydrophobic (vinyl) structures. It can react with hydroxyl, carboxyl, carbonyl, and other functional groups via hydrogen bonding, ionic bonding, or covalent bonding, endowing it with\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eexcellent adhesion, cationicity, and reactivity\u003c\/strong\u003e. It is suitable for applications in\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ecoatings\/inks, textiles, antimicrobial preservation\u003c\/strong\u003e, and more.\u003c\/p\u003e\n\u003cp class=\"text-4 mb-4\"\u003ePolyethylenimine (PEI), also known as polyaziridine, is a water-soluble polymer with the highest cationic density. Its basic structure consists of repeating units of two carbon atoms and one nitrogen atom, with the molecular formula(CH\u003csub\u003e2\u003c\/sub\u003eCH\u003csub\u003e2\u003c\/sub\u003eNH)\u003csub\u003en\u003c\/sub\u003e.  CAS: 9002-98-6\u003c\/p\u003e\n\u003ch3 class=\"font-weight-normal text-4 mb-2 bg-color-primary text-color-light\"\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Adhesion \u0026amp; Adsorption:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe polar amine groups in PEI-18H can bond with hydroxyl (hydrogen bonds), carboxyl (ionic bonds), carbonyl (covalent bonds), and other groups, enhancing adhesion to polar materials (e.g., paper, films, fibers). Ideal for scenarios requiring improved adhesion strength (e.g., coating thickening, ink fixation).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModerate Cationicity:\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003eExists as a polymeric cation in water, neutralizing\/adsorbing anionic substances and aiding in dispersing or stabilizing particles (e.g., pigments, ceramic powders). However, its cationic density is lower than high-molecular-weight grades (e.g.,\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ePEI-70K\u003c\/strong\u003e), making it suitable for applications with moderate cationic strength requirements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Reactivity:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eRich in primary\/secondary amine groups, it readily reacts with epoxides, aldehydes, isocyanates, etc., enabling use in coating crosslinking modification, aldehyde adsorption, or functional finishing (e.g., flame retardant fixation).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast Drying \u0026amp; Water Resistance (Coatings\/Inks):\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eIn acrylic emulsion systems, it significantly enhances coating drying speed and water resistance, improving film formation performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable style=\"width: 99.9394%;\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"width: 44.2985%;\"\u003e\u003cstrong\u003eProperty\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth style=\"width: 55.4729%;\"\u003e\u003cstrong\u003eTypical Value\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 44.2985%;\"\u003e\u003cstrong\u003eAppearance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 55.4729%;\"\u003eColorless or pale yellow liquid\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 44.2985%;\"\u003e\u003cstrong\u003eMolecular Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 55.4729%;\"\u003e1800\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 44.2985%;\"\u003e\u003cstrong\u003eSpecific Gravity (25°C)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 55.4729%;\"\u003e1.04\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 44.2985%;\"\u003e\u003cstrong\u003eViscosity (mPa·s)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 55.4729%;\"\u003e8,000 – 20,000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 44.2985%;\"\u003e\u003cstrong\u003eResin Content\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 55.4729%;\"\u003e\u0026gt;98%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 44.2985%;\"\u003e\u003cstrong\u003eAmine Value\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 55.4729%;\"\u003e19\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 44.2985%;\"\u003e\u003cstrong\u003eFlash Point\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 55.4729%;\"\u003e260 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 44.2985%;\"\u003e\u003cstrong\u003epH\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 55.4729%;\"\u003e10 – 12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv class=\"pl-5 mb-3\"\u003e\n\u003ch4 class=\"font-weight-normal text-4 mb-2 bg-color-primary text-color-light\"\u003e\u003c\/h4\u003e\n\u003ch3 class=\"font-weight-normal text-4 mb-2 bg-color-primary text-color-light\"\u003eApplication Areas\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eField\u003c\/th\u003e\n\u003cth\u003eSpecific Application\u003c\/th\u003e\n\u003cth\u003eKey Function\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd rowspan=\"2\"\u003eCoatings \u0026amp; Inks\u003c\/td\u003e\n\u003ctd\u003eAcrylic emulsion-based coatings\u003c\/td\u003e\n\u003ctd\u003eActs as a fast-drying agent and thickener, improving coating drying speed and water resistance.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFunctional inks (e.g., alcohol-based inks for films, auxiliary use)\u003c\/td\u003e\n\u003ctd\u003eEnhances ink adhesion to substrates when combined with resins (e.g., polyvinyl butyral).\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd rowspan=\"2\"\u003eTextiles \u0026amp; Fibers\u003c\/td\u003e\n\u003ctd\u003eFlame retardant fixation (phosphorus-based)\u003c\/td\u003e\n\u003ctd\u003eServes as a flame retardant retention agent, improving durability of phosphorus-based flame retardants in fibers.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGlass fiber sizing agent\u003c\/td\u003e\n\u003ctd\u003eImparts lubricity to glass fibers, reducing friction during processing.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd rowspan=\"1\"\u003eDispersants\u003c\/td\u003e\n\u003ctd\u003eDispersion of ceramics, carbon black, pigments, etc.\u003c\/td\u003e\n\u003ctd\u003eStabilizes dispersion of ceramic powders, carbon black, metal powders, etc., preventing agglomeration and enhancing uniform adhesion to substrates.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd rowspan=\"1\"\u003eAntimicrobial Preservation\u003c\/td\u003e\n\u003ctd\u003eWood preservatives, cut flower preservatives (Ag\/Cu composite)\u003c\/td\u003e\n\u003ctd\u003eForms chelates with Ag\/Cu; leverages PEI's high permeability to enhance penetration depth and metal ion retention of antimicrobial agents.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mb-3 pl-5\"\u003e\n\u003ch4 class=\"font-weight-normal text-4 mb-2 bg-color-primary text-color-light\"\u003eStorage \u0026amp; Handling Precautions\u003c\/h4\u003e\n\u003cp class=\"p-2\"\u003eRecommended Conditions: Low temperature (\u0026lt;25°C; long-term storage recommended at 4–10°C refrigeration), light-proof, dry, and sealed environment.\u003c\/p\u003e\n\u003cp class=\"p-2\"\u003eHigh-Temperature Risk: Storage above 80°C or exposure to air may cause oxidation, discoloration (darkening), surface skinning, severely degrading performance (e.g., reduced\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/en.wikipedia.org\/wiki\/Amine\" target=\"_blank\"\u003eamine\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003evalue, weakened viscosity).\u003c\/p\u003e\n\u003cp class=\"p-2\"\u003eHygroscopicity: PEI-18H is hygroscopic and absorbs CO₂; containers must be tightly sealed to avoid contact with moist air (otherwise, salts may precipitate or the product may fail).\u003c\/p\u003e\n\u003cp class=\"p-2\"\u003e\u003cstrong\u003eMSE Supplies offers various water-based resins, please \u003ca href=\"https:\/\/www.msesupplies.com\/pages\/contact-us-page\" rel=\"noopener\" target=\"_blank\"\u003econtact us\u003c\/a\u003e to discuss your needs.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"MSE Supplies","offers":[{"title":"Default Title","offer_id":41379304570938,"sku":"CM0069582","price":2036.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/7785\/files\/PEI-18H.png?v=1777404694","url":"https:\/\/www.msesupplies.com\/en-gb\/products\/mse-pro-pei-18h-polyethyleneimine-25-kg-barrel","provider":"MSE Supplies","version":"1.0","type":"link"}