• 专利标题:   Preparing graphene-enhanced aqueous epoxy resin coating without organic solvent by reacting excess ethanolamine with low molecular weight epoxy resin, adding e.g. neutralizer and methylene bisacrylamide, polymerizing, grafting to form, emulsifier, and mixing with e.g. epoxy resin and graphene.
  • 专利号:   CN113174183-A, CN113174183-B
  • 发明人:   ZHENG Y, SONG C
  • 专利权人:   UNIV FUZHOU
  • 国际专利分类:   C09D163/00, C09D005/08, C09D007/61, C09D007/65
  • 专利详细信息:   CN113174183-A 27 Jul 2021 C09D-163/00 202175 Pages: 8 Chinese
  • 申请详细信息:   CN113174183-A CN10462218 27 Apr 2021
  • 优先权号:   CN10462218

▎ 摘  要

NOVELTY - Method for preparing graphene-enhanced aqueous epoxy resin coating without organic solvent involves (a) reacting excess ethanolamine with low molecular weight epoxy resin using acrylate as solvent, adding neutralizer, water, polypropylene glycol diglycidyl ether and methylene bisacrylamide for copolymerization reaction, adding an initiator for carrying out free radical polymerization and grafting reaction to obtain a cationic aqueous epoxy resin emulsifier, and (b) mixing the obtained cationic aqueous epoxy resin emulsifier with low-molecular-weight aqueous epoxy resin, neutral aqueous epoxy resin curing agent and graphene to obtain the product. USE - The method is useful for preparing graphene-enhanced aqueous epoxy resin coating (claimed). ADVANTAGE - The method solves the problems of uncontrollable, high viscosity, uneven reaction, and influence on water resistance during the synthesis of emulsifiers, solves the limitation that organic solvents must be added in the synthesis of emulsifiers, and achieves the purpose of preparing emulsifiers without any volatile organic solvents. The obtained graphene-reinforced aqueous epoxy resin coating has excellent mechanical properties and anti-corrosion properties.