• 专利标题:   Preparing aminated graphene oxide/cyclodextrin modified aqueous epoxy resin anticorrosive paint useful in construction, comprises ultrasonicating aminated graphene oxide/cyclodextrin-2-mercaptobenzothiazole powder aqueous solution with aqueous epoxy curing agent and stirring with E-51 epoxy resin.
  • 专利号:   CN113583545-A, CN113583545-B
  • 发明人:   LIU J, ZHANG J, WU M, WU Q, CHEN H, YANG J
  • 专利权人:   UNIV ANHUI
  • 国际专利分类:   C09D163/02, C09D005/08
  • 专利详细信息:   CN113583545-A 02 Nov 2021 C09D-163/02 202225 Chinese
  • 申请详细信息:   CN113583545-A CN11070429 13 Sep 2021
  • 优先权号:   CN11070429

▎ 摘  要

NOVELTY - Preparing aminated graphene oxide/cyclodextrin modified aqueous epoxy resin anticorrosive paint comprises e.g. (i) preparing graphene oxide; (ii) preparing aminated graphene oxide/cyclodextrin; (iii) preparing aminated 1mg/ml graphene oxide/cyclodextrin to obtain solution A, dissolving 0.5 g 2-mercaptobenzothiazole in 10 ml acetone to obtain solution B, reacting part of solution A and B for 5 hours to obtain solution C, centrifuging the solution C to clean the suspension with pure water at 5000 revolutions/minutes, and drying to obtain aminated graphene oxide/cyclodextrin-2-mercaptobenzothiazole powder; (iv) dissolving the aminated graphene oxide/cyclodextrin-2-mercaptobenzothiazole powder in de-ionized water to prepare 10 mg/ml aminated graphene oxide/cyclodextrin-2-mercaptobenzothiazole powder aqueous solution, adding aqueous epoxy curing agent, ultrasonicating, rotating evaporating, adding E-51 epoxy resin and stirring. USE - The method is useful for preparing aminated graphene oxide/cyclodextrin modified aqueous epoxy resin anticorrosive paint is useful in various anti-corrosion fields e.g. industry and construction. ADVANTAGE - The method: prepares aminated graphene oxide/cyclodextrin modified aqueous epoxy resin anticorrosive paint with coating and impermeability properties, self-healing and long-term anti-corrosion effect and can be widely used in various anti-corrosion fields e.g. industry and construction; has simple synthesis process and easy control of reaction conditions, and good stability; and utilizes easily available raw materials. DETAILED DESCRIPTION - Preparing aminated graphene oxide/cyclodextrin modified aqueous epoxy resin anticorrosive paint comprises (i) preparing graphene oxide; (ii) preparing aminated graphene oxide/cyclodextrin; (iii) preparing aminated 1mg/ml graphene oxide/cyclodextrin to obtain solution A, dissolving 0.5 g 2-mercaptobenzothiazole in 10 ml acetone to obtain solution B, reacting part of solution A and B for 5 hours to obtain solution C, where the mass ratio of aminated graphene oxide/cyclodextrin and 2-mercaptobenzothiazole is 1:5, centrifuging the solution C to clean the suspension with pure water at 5000 revolutions/minutes, and drying at 50degrees Celsius and -0.1MPa in a vacuum drying oven for 24 hours to obtain aminated graphene oxide/cyclodextrin-2-mercaptobenzothiazole powder; (iv) dissolving the aminated graphene oxide/cyclodextrin-2-mercaptobenzothiazole powder in de-ionized water to prepare 10 mg/ml aminated graphene oxide/cyclodextrin-2-mercaptobenzothiazole powder aqueous solution, adding aqueous epoxy curing agent, ultrasonicating for 1 hour, rotating evaporating to remove excess solvent, adding E-51 epoxy resin and stirring for 30 minutes. The mass ratio of the aqueous epoxy curing agent and E-51 epoxy resin is 3: 1 and the mass fraction of the aminated graphene oxide/cyclodextrin-2-mercaptobenzothiazole powder in the total solid obtained by removing water of the target product is 0.25-2 wt.%.