• 专利标题:   Processing hardware surface anticorrosion treatment, comprises e.g. mixing hydrochloric acid solution and pyrrole monomer to obtain solution A, mixing hydrochloric acid solution and ammonium peroxodisulfate to obtain solution B, mixing the solutions, filtering and drying to obtain polypyrrole powder.
  • 专利号:   CN115926574-A
  • 发明人:   GU S, LUAN J, DENG K
  • 专利权人:   NANTONG ERDONG METAL TECHNOLOGY CO LTD
  • 国际专利分类:   B05D007/16, C09D163/00, C09D177/00, C09D179/04, C09D005/08, C09D007/62
  • 专利详细信息:   CN115926574-A 07 Apr 2023 C09D-163/00 202340 Chinese
  • 申请详细信息:   CN115926574-A CN11589137 12 Dec 2022
  • 优先权号:   CN11589137

▎ 摘  要

NOVELTY - Processing hardware surface anticorrosion treatment, comprises (1)mixing hydrochloric acid solution and pyrrole monomer to obtain solution A, mixing hydrochloric acid solution and ammonium peroxodisulfate to obtain solution B, mixing the solutions, filtering and drying to obtain polypyrrole powder, (2) adding sodium-based montmorillonite and dodecylbenzenesulfonic acid into ultrapure water, dispersing, carrying out polymerization reaction to obtain a composite powder, (3) dispersing graphene oxide, toluene diamine and silane coupling agent in ultrapure water, ultrasonically treating, filtering, and freeze-drying to obtain modified graphene oxide, and (4) mixing the obtained composite powder, polypyrrole powder, epoxy resin and coating solvent, mixing, performing ultrasonic treatment, adding polyamide and curing agent, mixing and carrying out ultrasonic treatment to obtain composite anti-corrosion coating, polishing the surface hardware, coating, drying and curing . USE - The method is useful for processing hardware surface anticorrosion treatment. ADVANTAGE - The method: ensure the strong adhesive force of anti-corrosion coating; improves the water resistance and corrosion resistance of the hardware; and the obtained product has smooth surface and excellent glossiness. DETAILED DESCRIPTION - Processing hardware surface anticorrosion treatment process, comprises (1) taking the hydrochloric acid solution and pyrrole monomer, stirring and mixing uniformly and noted as solution A, then taking the hydrochloric acid solution and ammonium peroxodisulfate, stirring and mixing uniformly and noted as solution B, taking solution B and slowly adding it into solution A, stirring continuously during the dropping process, continue to stirring for 5-6 hours after the dropwise addition is completed, filtering, washing and drying to obtain polypyrrole powder, (2) adding sodium-based montmorillonite and dodecylbenzenesulfonic acid into ultrapure water, stirring and dispersing at room temperature for 3-4 hours, then performing ultrasonic treatment for 30 minutes, and then adding the aqueous solution of ferric chloride hexahydrate, stirring and then adding polypyrrole powder to carrying out polymerization reaction for 24-36 hours, and drying the powder produced by the reaction and grinding at 50℃ to obtain a composite powder, (3) dispersing graphene oxide, toluene diamine and silane coupling agent in ultrapure water, ultrasonically treating for 1-2 hours, stirring and reacting in an oil bath at 92-97℃ for 6-8 hours, placing the suspended matter in the solution is filtered by suction and redissolved in ultrapure water, and then filtering again, repeating the dissolution and suction filtration for at least three times, cleaning, and placing the suspended matter in a vacuum freeze-drying box to freeze-drying for 24-36 hours to obtain modified graphene oxide, and (4) mixing the obtained composite powder, polypyrrole powder, epoxy resin and coating solvent and then fully stirring and mixing, performing ultrasonic treatment for 1-2 hours, then adding polyamide and curing agent, mixing and stirring, and then again carrying out ultrasonic treatment for 1-2 hours to obtain a composite anti-corrosion coating, polishing the surface hardware, cleaning and drying for coating, and then placing it at 50-55℃ for drying and curing to obtain the final product.