• 专利标题:   Preparing polyacrylate functionalized graphene modified polyurethane composite coating, comprises e.g. reacting (2,2,6,6-tetramethylpiperidin-1-yl)oxy-terminated phosphaphenanthrene acrylate grafted graphene with graphene oxide and benzoyl peroxide.
  • 专利号:   CN113980566-A
  • 发明人:   YU X, ZHANG D, WANG Y
  • 专利权人:   SHENZHEN LANKAXI TRADING CO LTD
  • 国际专利分类:   C08F220/06, C08F220/18, C08F230/02, C08F292/00, C09D175/04, C09D005/18, C09D007/62
  • 专利详细信息:   CN113980566-A 28 Jan 2022 C09D-175/04 202266 Chinese
  • 申请详细信息:   CN113980566-A CN11345795 15 Nov 2021
  • 优先权号:   CN11345795

▎ 摘  要

NOVELTY - Preparing polyacrylate functionalized graphene modified polyurethane composite coating, comprises e.g. (i) adding mixed solution of dichloromethane containing 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide and carbon tetrachloride to react into mixed solution of hydroxyethyl acrylate and triethylamine, (ii) placing butyl acrylate, ethyl acrylate, acrylic acid, acrylate-based phosphaphenanthrene derivatives, benzoyl peroxide and 2,2,6,6-tetramethyl-1-piperidine oxide in reaction flask, and polymerizing, (iii) dissolving graphene oxide and (2,2,6,6-tetramethylpiperidin-1-yl)oxy terminal phosphaphenanthrenyl acrylate in toluene solvent, and reacting, centrifugal washing and drying, and (iv) adding (2,2,6,6-tetramethylpiperidin-1-yl)oxy-terminated phosphaphenanthrene acrylate grafted graphene, emulsifier, aqueous defoamer, aqueous leveling agent, and fat-soluble antioxidant. USE - The method is useful for preparing polyacrylate functionalized graphene modified polyurethane composite coating. ADVANTAGE - The polyacrylate functionalized graphene modified polyurethane composite coating increases service life of flame retardant coatings; and has increased crosslinking density and improved mechanical properties of composite coatings. DETAILED DESCRIPTION - Preparing polyacrylate functionalized graphene modified polyurethane composite coating, comprises (i) adding mixed solution of dichloromethane containing 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide and carbon tetrachloride to react into mixed solution of hydroxyethyl acrylate and triethylamine to obtain acrylate phosphaphenanthrene derivatives (C18H17O5P), (ii) placing butyl acrylate, ethyl acrylate, acrylic acid, acrylate-based phosphaphenanthrene derivatives, benzoyl peroxide and 2,2,6,6-tetramethyl-1-piperidine oxide in reaction flask, carrying out the polymerization reaction under argon atmosphere to obtain (2,2,6,6-tetramethylpiperidin-1-yl)oxy terminal phosphaphenanthrenyl acrylate, (iii) dissolving graphene oxide and (2,2,6,6-tetramethylpiperidin-1-yl)oxy terminal phosphaphenanthrenyl acrylate in a toluene solvent, and reacting under argon atmosphere, centrifugal washing and drying to obtain phosphaphenanthrenyl acrylate grafted graphite alkene, and (iv) adding (2,2,6,6-tetramethylpiperidin-1-yl)oxy-terminated phosphaphenanthrene acrylate grafted graphene, emulsifier, aqueous defoamer, aqueous leveling agent, fat-soluble antioxidant, stirring to obtain polyacrylate functionalized graphene modified polyurethane composite coating.