Coating classification: epoxy waterborne coating

Core tip: brief introduction: epoxy waterborne coating is a kind of coating with water as solvent or dispersion medium Epoxy water-based coating includes water-soluble epoxy coating and water emulsion epoxy coating Water soluble epoxy coating is often called electrophoretic coating That is to say, the resin dissolves in water to form a uniform colloidal solution If the resin ion is charged, the colloidal particles can be electrodeposited on the surface of the workpiece under the action of direct current Classification: Water soluble epoxy coating The water-soluble epoxy coating can be divided into water-soluble anion resin coating (anodic electrophoretic coating) and water-soluble cation resin coating (cathodic electrophoretic coating) Paint knowledge how about Akzo Nobel Powder Coating Recommended introduction: powder coating is a kind of coating with different form from general coating, which is in powder form It is a new type of coating, because of its own advantages and more and more known by people Let's introduce Akzo Nobel Powder coating Akzo Nobel Powder coating is a cost-effective coating solution, which can be applied to different kinds of products After the treatment of static electricity and fire baking, a tough and durable coating surface will be formed, with the least impact on the environment Since the introduction of this technology, powder coating has been able to continue to maintain the Home of coatings: Introduction: epoxy water-based coating is a kind of coating with water as solvent or dispersion medium Epoxy water-based coating includes water-soluble epoxy coating and water emulsion epoxy coating Water soluble epoxy coating is often called electrophoretic coating That is to say, the resin dissolves in water to form a uniform colloidal solution If the resin ion is charged, the colloidal particles can be electrodeposited on the surface of the workpiece under the action of direct current Classification: the water-soluble epoxy coating can be divided into water-soluble anion resin coating (anode electrophoretic coating) and water-soluble cation resin coating (cathode electrophoretic coating) Water soluble curing agents such as melamine formaldehyde resin, benzene melamine formaldehyde resin, urea formaldehyde resin and isocyanate are often used ① Water soluble anion resin coating the resin of water-soluble anion resin coating reacts with acid and anhydride from epoxy resin with high hydroxyl content, and then neutralizes with acid to obtain water-soluble anion resin The commonly used epoxy resins are E-20, E-12, E-35, etc The commonly used acids are linoleic acid, soybean oil acid, dehydrated ricinoleic acid, etc The commonly used anhydrides and carboxylic acids are maleic anhydride, fumaric anhydride and methylene butadiene diacid The finalized products of water-soluble anion resin coating are h08-1 (black) and h08-2 (iron red) epoxy ester electrophoretic paint The characteristics of epoxy ester anode electrophoretic coating are less interference factors of electrodeposition, good binding force with polar matrix such as steel, excellent acid resistance and weak alkali resistance However, it can be modified with esterified maleic acid oil and acrylic resin to obtain anode electrophoretic coating with good comprehensive performance This kind of coating can be used for a layer of electrophoretic coating of automobile frame and chassis parts, as well as primer, etc ② Water soluble cation resin coating water soluble cation resin coating resin is obtained by adding epoxy resin and amine, introducing semi closed polyisocyanate as crosslinking agent, and finally neutralizing with acid In the curing process of water-soluble cationic resin coating, the isocyanate functional group is unsealed, and the crosslinking curing film is formed immediately with the amino added by epoxy amine, with outstanding corrosion resistance It can be used for anti-corrosion electrophoretic primer or indoor coating, with the largest amount used in coating of mechanical and electrical products Water emulsifying epoxy coating water emulsifying epoxy coating is to emulsify the epoxy resin with low molecular weight with suitable emulsifier, and make it have good storage and use stability The common emulsifiable epoxy resins are epikote255, E-4 ketal epoxy resin, E-51 resin, Heine epoxy resin and glycerin epoxy resin If the composite resin containing hydroxyl, carboxymethyl and ether bond is used for emulsification, the variety and application scope of the water emulsifying epoxy coating can be enhanced, for example, the water emulsifying epoxy coating modified by coal tar The common curing agents of water emulsion epoxy coating are casamid360, modified polyamide, EA10, d-8 curing agent, H61 curing agent, amino acrylic resin, etc The water emulsion epoxy coating is characterized by good anticorrosion performance and excellent anticorrosion performance The fineness can be up to 25 μ m, the gelation time is 2-4 h, and many other properties can be compared with the common solvent epoxy coating Water emulsion epoxy coating can be used as primer, newly poured concrete, steel surface, nuclear power plant, etc Home of coatings is specialized in coatings, diatom mud, paint coating, coating technology, fire retardant coating news and coating, diatom mud, paint coating, coating technology, fire retardant coating decoration knowledge and decoration renderings,