• 专利标题:   Production of graphene-containing coating for marine application, involves preparing conjugated modified graphene using hydroxylated graphene, adding conjugated modified graphene to diluent, adding film-forming material, and stirring.
  • 专利号:   CN104974640-A
  • 发明人:   WANG H, WANG J, YUE X
  • 专利权人:   UNIV TIANJIN
  • 国际专利分类:   C09D163/00, C09D005/08, C09D005/16, C09D007/12
  • 专利详细信息:   CN104974640-A 14 Oct 2015 C09D-163/00 201627 Pages: 13 Chinese
  • 申请详细信息:   CN104974640-A CN10428530 01 Nov 2013
  • 优先权号:   CN10428530

▎ 摘  要

NOVELTY - Production of graphene-containing involves preparing aqua regia using 98 wt.% concentrated sulfuric acid and 65 wt.% concentrated nitric acid, dispersing graphene in aqua regia, washing, drying, grinding dried material, dissolving obtained hydroxylated graphene and N-( beta )-(aminoethyl)- gamma -aminopropylmethyldimethoxysilane in deionized water, heating, stirring, centrifuging, washing, drying, grinding, adding obtained conjugated modified graphene to diluent, adding film-forming material, stirring and curing. USE - Production of graphene-containing coating used for marine application. ADVANTAGE - The method enables production of graphene-containing coating with excellent corrosion resistance and fouling resistance. DETAILED DESCRIPTION - Production of graphene-containing coating involves preparing aqua regia using 98 wt.% concentrated sulfuric acid and 65 wt.% concentrated nitric acid in ratio of 3:1, ultrasonically dispersing graphene in aqua regia, washing with water to neutral, drying, grinding dried material, obtaining hydroxylated graphene, dissolving hydroxylated graphene and N-( beta )-(aminoethyl)- gamma -aminopropylmethyldimethoxysilane in deionized water, heating, stirring, centrifuging, washing, drying, grinding, obtaining conjugated modified graphene, mixing xylene and n-butanol, obtaining diluent, adding conjugated modified graphene to diluent, adding 0.10-0.20 %mass film-forming material, stirring and curing. The film-forming material comprises epoxy resin and curing agent. The mass ratio of epoxy resin, curing agent, xylene and n-butanol is 20:8-12:2-5:5-9. The content ratio of graphene and aqua regia is 1 g:600-630 mL. The mass ratio of hydroxylated graphene and N-( beta )-(aminoethyl)- gamma -aminopropylmethyldimethoxysilane is 1:3-6. The mass ratio of xylene and n-butanol is 2-5:5-9.