CN116102951A - Antistatic nonflammable water-based epoxy coating - Google Patents

Antistatic nonflammable water-based epoxy coating Download PDF

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CN116102951A
CN116102951A CN202211712212.3A CN202211712212A CN116102951A CN 116102951 A CN116102951 A CN 116102951A CN 202211712212 A CN202211712212 A CN 202211712212A CN 116102951 A CN116102951 A CN 116102951A
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parts
antistatic
component
agent
epoxy resin
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杨永顾
李明霞
郭婷婷
党天瑞
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Suzhou Weijiemian Materials Technology Co ltd
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Suzhou Weijiemian Materials Technology Co ltd
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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/08—Anti-corrosive paints
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/18—Fireproof paints including high temperature resistant paints
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/24—Electrically-conducting paints
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/61—Additives non-macromolecular inorganic
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2227—Oxides; Hydroxides of metals of aluminium
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
    • C08K2003/3045—Sulfates
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/02—Flame or fire retardant/resistant
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/04—Antistatic

Abstract

The invention provides an antistatic non-ignition water-based epoxy coating which comprises a component A and a component B, wherein the mass ratio of the component A to the component B is 2-3:1, and the component A comprises the following components in parts by weight: 35-40 parts of epoxy resin, 16-18 parts of maleic anhydride modified epoxy resin, 6-8 parts of reactive diluent, 1.5-2 parts of dispersing agent, 0.5-1 part of plasticizer, 35-40 parts of filler, 1-2 parts of wetting agent, 1.5-3 parts of adhesion promoter and 15-20 parts of antistatic agent; the component B comprises: 75-80 parts of curing agent, 1-1.5 parts of cosolvent, 8-12 parts of deionized water and 0.2-0.4 part of thixotropic agent. The antistatic nonflammable water-based epoxy paint has good antistatic, aging-resistant and flame-retardant properties, and the tetrafluoroethylene-ethylene-vinyl acetate copolymer can be used in combination with maleic anhydride modified epoxy resin and epoxy resin to further improve the ageing resistance and nonflammable properties of the epoxy paint, and can obviously improve the toughness of the interior of the epoxy paint.

Description

Antistatic nonflammable water-based epoxy coating
Technical Field
The invention relates to the technical field of epoxy paint, in particular to an antistatic nonflammable water-based epoxy paint.
Background
The epoxy floor coating is an ideal long-acting floor coating variety in the modern industry. The common epoxy resin paint needs a large amount of organic solvent in the manufacturing and using processes, is expensive, is easy to volatilize and has great pollution to the environment.
The waterborne epoxy floor coating has the advantages of low VoC content, small smell, safe and environment-friendly use and the like, has excellent air permeability and good compatibility with concrete, and has been rapidly developed in recent years.
The epoxy terrace uses a large amount of organic solvents due to the fact that the epoxy terrace belongs to a closed space, the environment-friendly performance is poor, meanwhile, the organic solvents of the closed space are inflammable and explosive, the use is limited, and the antistatic performance is poor, and therefore research and development of the environment-friendly epoxy terrace become hot spots of research and development and market.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention provides the antistatic nonflammable water-based epoxy paint, which can improve the antistatic performance and the flame retardant performance of the epoxy paint. The technical scheme adopted by the invention is as follows:
an antistatic, non-pyrophoric, waterborne epoxy coating, wherein: the antistatic non-ignition waterborne epoxy coating comprises a component A and a component B, wherein the mass ratio of the component A to the component B is 2-3:1, and the component A comprises the following components in parts by weight:
35-40 parts of epoxy resin, 16-18 parts of maleic anhydride modified epoxy resin, 6-8 parts of reactive diluent, 1.5-2 parts of dispersing agent, 0.5-1 part of plasticizer, 35-40 parts of filler, 1-2 parts of wetting agent, 1.5-3 parts of adhesion promoter and 15-20 parts of antistatic agent;
the component B comprises the following components: 75-80 parts of curing agent, 1-1.5 parts of cosolvent, 8-12 parts of deionized water and 0.2-0.4 part of thixotropic agent.
Preferably, the antistatic non-flammable aqueous epoxy coating, wherein: the epoxy resin is at least one of bisphenol A type epoxy resin, bisphenol F type epoxy resin and phenolic epoxy resin.
Preferably, the antistatic non-flammable aqueous epoxy coating, wherein: the reactive diluent is ethylene glycol monoethyl ether or allyl glycidyl ether; the dispersing agent is one of fluorine modified polyacrylate, ethylene-acrylic acid copolymer and butyl stearate.
The reactive diluent is added to reduce the viscosity of the system, so that the construction is convenient, and the preferred reactive diluent is ethylene glycol monoethyl ether or allyl glycidyl ether.
Preferably, the antistatic non-flammable aqueous epoxy coating, wherein: the plasticizer is selected from one of benzyl alcohol and alcohol ester-12, and the filler is selected from one of silica powder, aluminum hydroxide, magnesium hydroxide and basic zinc carbonate.
Preferably, the antistatic non-flammable aqueous epoxy coating, wherein: the wetting agent comprises 55-65% of epoxidized soybean oil and 35-45% of polyoxyethylene polyoxypropylene block copolymer.
The wetting agent can make the filler more easily soaked by water by reducing the surface energy, and the preferable wetting agent is the synergistic effect of epoxidized soybean oil and polyoxyethylene polyoxypropylene segmented copolymer, so that the compatibility of each component is improved.
Preferably, the antistatic non-flammable aqueous epoxy coating, wherein: the adhesion promoter comprises 70-72% of vinyl trimethoxy silane, 14-18% of butyl trimethoxy silane and 10-15% of phenyl trimethoxy silane; the antistatic agent comprises 15-20% of barium sulfate, 35-40% of graphene and 40-50% of La x sr 1-x ca y mg 1-y O 3 Wherein said La x sr 1-x Pr y mg 1-y O 3 X is more than or equal to 0.7 and less than or equal to 0.9,0.6, and y is more than or equal to 0.8.
By barium sulfate, graphene and La x sr 1-x Pr y mg 1-y O 3 Is added such that barium sulfate, graphene and La x sr 1- x ca y mg 1-y O 3 The continuous net chain is formed by mutual contact, the carrier can move on the net chain, thus the coating is antistatic, the conductive agent has enough filling quantity to form the conductive chain, but the excessive filling quantity of the conductive agent can not be sufficiently wetted, so that the physical and mechanical properties of the coating are reduced, the invention is realized by using barium sulfate, graphene and La x sr 1-x ca y mg 1-y O 3 Reasonable matching, thereby optimizing antistatic performance.
Preferably, the antistatic non-flammable aqueous epoxy coating, wherein: the curing agent comprises 65-70% of polyether amine and 30-35% of polymaleic anhydride, wherein the molecular weight of the polyether amine is 4200-4500. Polyether amine and polymaleic anhydride are used as curing agents for being matched with liquid epoxy resin at room temperature, and the epoxy resin has good moisture resistance, water resistance, high hardness and excellent color stability.
Preferably, the antistatic non-flammable aqueous epoxy coating, wherein: the cosolvent is one of polypropylene glycol glycidyl ether or dipropylene glycol butyl ether acetate, and the thixotropic agent is fumed silica.
Preferably, the antistatic non-flammable aqueous epoxy coating, wherein: the antistatic non-ignition waterborne epoxy coating A also comprises 5-8 parts of tetrafluoroethylene-ethylene-vinyl acetate copolymer, wherein the tetrafluoroethylene content is 8-10wt%, the ethylene content is 35-45wt%, and the balance is vinyl acetate.
The tetrafluoroethylene-ethylene-vinyl acetate copolymer can be used in combination with maleic anhydride modified epoxy resin and epoxy resin to further improve the ageing resistance and the non-ignition performance of the epoxy resin, and meanwhile, the toughness of the interior of the epoxy coating can be obviously improved, so that the bonding strength of the epoxy coating in a severe environment for a long time is improved; it should be noted that the tetrafluoroethylene-ethylene-vinyl acetate copolymer in the present application is a random copolymer, and the preparation method is similar to that of EVA, and only the components and the proportion of the materials need to be changed.
Preferably, the antistatic non-sparking aqueous ringAn oxygen coating, wherein: the antistatic non-ignition waterborne epoxy coating A component also comprises 4-7 parts of TiC-Ti 3 SiC 2 。TiC-Ti 3 SiC 2 In the event of a fire, a layer of SiO is formed on the surface 2 The film further has flame retardant effect, and can improve the corrosion resistance and the wear resistance of the epoxy coating.
The invention has the advantages that: the antistatic nonflammable water-based epoxy paint has good antistatic, ageing-resistant and flame-retardant properties, and the tetrafluoroethylene-ethylene-vinyl acetate copolymer can be used in combination with maleic anhydride modified epoxy resin and epoxy resin to further improve the ageing resistance and nonflammable properties of the epoxy paint, and can obviously improve the toughness of the interior of the epoxy paint, so that the adhesive strength of the water-based epoxy paint in a severe environment for a long time is improved; barium persulfate, graphene and La x sr 1-x Pr y mg 1-y O 3 The synergistic effect of the water-based epoxy coating not only forms a conductive path and a conductive network in the coating, improves the antistatic property of the coating, but also improves the permeation resistance of the water-based epoxy coating, so that the coating has good corrosion resistance.
Detailed Description
The invention will be further illustrated with reference to specific examples.
Example 1
An antistatic, non-pyrophoric, waterborne epoxy coating, wherein: the antistatic non-ignition waterborne epoxy coating comprises a component A and a component B, wherein the mass ratio of the component A to the component B is 2:1, and the component A comprises the following components in parts by weight:
35 parts of epoxy resin, 16 parts of maleic anhydride modified epoxy resin, 6 parts of reactive diluent, 1.5 parts of dispersing agent, 0.5 part of plasticizer, 35 parts of filler, 1 part of wetting agent, 1.5 parts of adhesion promoter and 15 parts of antistatic agent; 5 parts of tetrafluoroethylene-ethylene-vinyl acetate copolymer, 8% by weight of tetrafluoroethylene, 35% by weight of ethylene and 4 parts of TiC-Ti 3 SiC 2 ；
The component B comprises the following components: 75 parts of curing agent, 1 part of cosolvent, 8 parts of deionized water and 0.2 part of thixotropic agent.
The epoxy resin is bisphenol A type epoxy resin, the reactive diluent is glycol monoethyl ether, the dispersing agent is fluorine modified polyacrylate, the plasticizer is benzyl alcohol, the filler is silica micropowder, and the wetting agent comprises 55% of epoxidized soybean oil and 45% of polyoxyethylene polyoxypropylene segmented copolymer; the adhesion promoter comprises 70% of vinyltrimethoxysilane, 15% of butyltrimethoxysilane and 15% of phenyltrimethoxysilane, and the antistatic agent comprises 15% of barium sulfate, 40% of graphene and 45% of La x sr 1-x ca y mg 1-y O 3 Wherein said La x sr 1-x Pr y mg 1-y O 3 Wherein x=0.7, y=0.6; the curing agent comprises 65% polyether amine and 35% polymaleic anhydride, and the molecular weight of the polyether amine is 4200; the cosolvent is polypropylene glycol glycidyl ether, and the thixotropic agent is fumed silica.
Example 2
An antistatic, non-pyrophoric, waterborne epoxy coating, wherein: the antistatic non-ignition waterborne epoxy coating comprises a component A and a component B, wherein the mass ratio of the component A to the component B is 2:1, and the component A comprises the following components in parts by weight:
38 parts of epoxy resin, 17 parts of maleic anhydride modified epoxy resin, 7 parts of reactive diluent, 1.8 parts of dispersing agent, 0.8 part of plasticizer, 39 parts of filler, 1.5 parts of wetting agent, 2 parts of adhesion promoter and 18 parts of antistatic agent; 6 parts of tetrafluoroethylene-ethylene-vinyl acetate copolymer, wherein the tetrafluoroethylene content is 9wt%, the ethylene content is 40wt%, and the rest is vinyl acetate, 5 parts of TiC-Ti 3 SiC 2 ；
The component B comprises the following components: 78 parts of curing agent, 1.2 parts of cosolvent, 10 parts of deionized water and 0.3 part of thixotropic agent.
The epoxy resin is bisphenol F type epoxy resin, the reactive diluent is allyl glycidyl ether, the dispersing agent is ethylene-acrylic acid copolymer, the plasticizer is alcohol ester-12, the filler is aluminum hydroxide, and the wetting agent comprises 60% of epoxidized soybean oil and 40% of polyoxyethylene polyoxypropylene segmented copolymer; the adhesion promoter comprises 71% vinyl trimethoxy silane and 16% butyl trimethoxy silaneAnd 13% phenyl trimethoxysilane, the antistatic agent comprises 18% barium sulfate, 36% graphene and 46% La x sr 1- x ca y mg 1-y O 3 Wherein said La x sr 1-x Pr y mg 1-y O 3 Wherein x=0.8, y=0.7; the curing agent comprises 68% of polyether amine and 32% of polymaleic anhydride, wherein the molecular weight of the polyether amine is 4300; the cosolvent is dipropylene glycol butyl ether acetate, and the thixotropic agent is fumed silica.
Example 3
An antistatic, non-pyrophoric, waterborne epoxy coating, wherein: the antistatic non-ignition waterborne epoxy coating comprises a component A and a component B, wherein the mass ratio of the component A to the component B is 2:1, and the component A comprises the following components in parts by weight:
40 parts of epoxy resin, 18 parts of maleic anhydride modified epoxy resin, 8 parts of reactive diluent, 2 parts of dispersing agent, 1 part of plasticizer, 40 parts of filler, 2 parts of wetting agent, 3 parts of adhesion promoter and 20 parts of antistatic agent; 8 parts of tetrafluoroethylene-ethylene-vinyl acetate copolymer, wherein the tetrafluoroethylene content is 10wt%, the ethylene content is 45wt%, and the balance is vinyl acetate, 7 parts of TiC-Ti 3 SiC 2 。
The component B comprises the following components: 80 parts of curing agent, 1.5 parts of cosolvent, 12 parts of deionized water and 0.4 part of thixotropic agent.
The epoxy resin is bisphenol A epoxy resin and bisphenol F epoxy resin, the mass ratio is 1:1, the reactive diluent is ethylene glycol monoethyl ether, the dispersing agent is ethylene-acrylic acid copolymer, the plasticizer is alcohol ester-12, the filler is basic zinc carbonate, the wetting agent comprises 65% of epoxidized soybean oil and 35% of polyoxyethylene polyoxypropylene block copolymer, and the adhesion promoter comprises 72% of vinyl trimethoxy silane, 18% of butyl trimethoxy silane and 10% of phenyl trimethoxy silane; the antistatic agent comprises 20% barium sulfate, 40% graphene and 40% La x sr 1-x ca y mg 1-y O 3 Wherein said La x sr 1-x Pr y mg 1-y O 3 Wherein x=0.9 and y=0.8; the curing agent comprises 70% polyether amine and 30% polymaleic anhydrideThe molecular weight of the polyether amine is 4500, the cosolvent is dipropylene glycol butyl ether acetate, and the thixotropic agent is fumed silica.
Comparative example 1
An antistatic, non-pyrophoric, waterborne epoxy coating, wherein: the antistatic non-ignition waterborne epoxy coating comprises a component A and a component B, wherein the mass ratio of the component A to the component B is 2:1, and the component A comprises the following components in parts by weight:
35 parts of epoxy resin, 16 parts of maleic anhydride modified epoxy resin, 6 parts of reactive diluent, 1.5 parts of dispersing agent, 0.5 part of plasticizer, 35 parts of filler, 1 part of wetting agent, 1.5 parts of adhesion promoter and 15 parts of antistatic agent; 5 parts of tetrafluoroethylene-ethylene-vinyl acetate copolymer, 8% by weight of tetrafluoroethylene, 35% by weight of ethylene and 4 parts of TiC-Ti 3 SiC 2 ；
The component B comprises the following components: 75 parts of curing agent, 1 part of cosolvent, 8 parts of deionized water and 0.2 part of thixotropic agent.
The epoxy resin is bisphenol A type epoxy resin, the reactive diluent is glycol monoethyl ether, the dispersing agent is fluorine modified polyacrylate, the plasticizer is benzyl alcohol, the filler is silica micropowder, and the wetting agent comprises 55% of epoxidized soybean oil and 45% of polyoxyethylene polyoxypropylene segmented copolymer; the adhesion promoter is vinyl trimethoxy silane, and the antistatic agent comprises 15% barium sulfate, 40% graphene and 45% La x sr 1-x ca y mg 1-y O 3 Wherein said La x sr 1-x Pr y mg 1-y O 3 Wherein x=0.7, y=0.6; the curing agent comprises 65% polyether amine and 35% polymaleic anhydride, and the molecular weight of the polyether amine is 4200; the cosolvent is polypropylene glycol glycidyl ether, and the thixotropic agent is fumed silica.
Comparative example 2
An antistatic, non-pyrophoric, waterborne epoxy coating, wherein: the antistatic non-ignition waterborne epoxy coating comprises a component A and a component B, wherein the mass ratio of the component A to the component B is 2:1, and the component A comprises the following components in parts by weight:
35 parts of epoxy resin and maleic acid16 parts of anhydride modified epoxy resin, 6 parts of reactive diluent, 1.5 parts of dispersing agent, 0.5 part of plasticizer, 35 parts of filler, 1 part of wetting agent, 1.5 parts of adhesion promoter and 15 parts of antistatic agent; 5 parts of tetrafluoroethylene-ethylene-vinyl acetate copolymer, 8% by weight of tetrafluoroethylene, 35% by weight of ethylene and 4 parts of TiC-Ti 3 SiC 2 ；
The component B comprises the following components: 75 parts of curing agent, 1 part of cosolvent, 8 parts of deionized water and 0.2 part of thixotropic agent.
The epoxy resin is bisphenol A type epoxy resin, the reactive diluent is glycol monoethyl ether, the dispersing agent is fluorine modified polyacrylate, the plasticizer is benzyl alcohol, the filler is silica micropowder, and the wetting agent comprises 55% of epoxidized soybean oil and 45% of polyoxyethylene polyoxypropylene segmented copolymer; the adhesion promoter comprises 70% of vinyl trimethoxy silane, 15% of butyl trimethoxy silane and 15% of phenyl trimethoxy silane, and the antistatic agent comprises 60% of barium sulfate and 40% of graphene; the curing agent comprises 65% polyether amine and 35% polymaleic anhydride, and the molecular weight of the polyether amine is 4200; the cosolvent is polypropylene glycol glycidyl ether, and the thixotropic agent is fumed silica.
Comparative example 3
An antistatic, non-pyrophoric, waterborne epoxy coating, wherein: the antistatic non-ignition waterborne epoxy coating comprises a component A and a component B, wherein the mass ratio of the component A to the component B is 2:1, and the component A comprises the following components in parts by weight:
38 parts of epoxy resin, 17 parts of maleic anhydride modified epoxy resin, 7 parts of reactive diluent, 1.8 parts of dispersing agent, 0.8 part of plasticizer, 39 parts of filler, 1.5 parts of wetting agent, 2 parts of adhesion promoter and 18 parts of antistatic agent; 6 parts of tetrafluoroethylene-ethylene-vinyl acetate copolymer, wherein the tetrafluoroethylene content is 9wt%, the ethylene content is 40wt%, and the rest is vinyl acetate, 5 parts of TiC-Ti 3 SiC 2 ；
The component B comprises the following components: 78 parts of curing agent, 1.2 parts of cosolvent, 10 parts of deionized water and 0.3 part of thixotropic agent.
The epoxy resin is bisphenol F type epoxy resin, and the active diluent is alkenePropyl glycidyl ether, an ethylene-acrylic acid copolymer as a dispersing agent, an alcohol ester-12 as a plasticizer, aluminum hydroxide as a filler, and 60% of epoxidized soybean oil and 40% of polyoxyethylene polyoxypropylene block copolymer as a wetting agent; the adhesion promoter comprises 71% vinyl trimethoxy silane, 16% butyl trimethoxy silane and 13% phenyl trimethoxy silane, the antistatic agent comprises 18% barium sulfate, 36% graphene and 46% La x sr 1- x ca y mg 1-y O 3 Wherein said La x sr 1-x Pr y mg 1-y O 3 Wherein x=0.8, y=0.7; the curing agent is polyetheramine; the cosolvent is dipropylene glycol butyl ether acetate, and the thixotropic agent is fumed silica.
Comparative example 4
An antistatic, non-pyrophoric, waterborne epoxy coating, wherein: the antistatic non-ignition waterborne epoxy coating comprises a component A and a component B, wherein the mass ratio of the component A to the component B is 2:1, and the component A comprises the following components in parts by weight:
38 parts of epoxy resin, 17 parts of maleic anhydride modified epoxy resin, 7 parts of reactive diluent, 1.8 parts of dispersing agent, 0.8 part of plasticizer, 39 parts of filler, 1.5 parts of wetting agent, 2 parts of adhesion promoter and 18 parts of antistatic agent; 5 parts of TiC-Ti 3 SiC 2 ；
The component B comprises the following components: 78 parts of curing agent, 1.2 parts of cosolvent, 10 parts of deionized water and 0.3 part of thixotropic agent.
The epoxy resin is bisphenol F type epoxy resin, the reactive diluent is allyl glycidyl ether, the dispersing agent is ethylene-acrylic acid copolymer, the plasticizer is alcohol ester-12, the filler is aluminum hydroxide, and the wetting agent comprises 60% of epoxidized soybean oil and 40% of polyoxyethylene polyoxypropylene segmented copolymer; the adhesion promoter comprises 71% vinyl trimethoxy silane, 16% butyl trimethoxy silane and 13% phenyl trimethoxy silane, the antistatic agent comprises 18% barium sulfate, 36% graphene and 46% La x sr 1- x ca y mg 1-y O 3 Wherein said La x sr 1-x Pr y mg 1-y O 3 Where x=0.8 and y=0.7, preparing a base material; the curing agent comprises 68% of polyether amine and 32% of polymaleic anhydride, wherein the molecular weight of the polyether amine is 4300; the cosolvent is dipropylene glycol butyl ether acetate, and the thixotropic agent is fumed silica.
Comparative example 5
An antistatic, non-pyrophoric, waterborne epoxy coating, wherein: the antistatic non-ignition waterborne epoxy coating comprises a component A and a component B, wherein the mass ratio of the component A to the component B is 2:1, and the component A comprises the following components in parts by weight:
40 parts of epoxy resin, 18 parts of maleic anhydride modified epoxy resin, 8 parts of reactive diluent, 2 parts of dispersing agent, 1 part of plasticizer, 40 parts of filler, 2 parts of wetting agent, 3 parts of adhesion promoter and 20 parts of antistatic agent; 8 parts of tetrafluoroethylene-ethylene-vinyl acetate copolymer, wherein the tetrafluoroethylene content is 10wt%, the ethylene content is 45wt% and the balance is vinyl acetate;
the component B comprises the following components: 80 parts of curing agent, 1.5 parts of cosolvent, 12 parts of deionized water and 0.4 part of thixotropic agent.
The epoxy resin is bisphenol A epoxy resin and bisphenol F epoxy resin, the mass ratio is 1:1, the reactive diluent is ethylene glycol monoethyl ether, the dispersing agent is ethylene-acrylic acid copolymer, the plasticizer is alcohol ester-12, the filler is basic zinc carbonate, the wetting agent comprises 65% of epoxidized soybean oil and 35% of polyoxyethylene polyoxypropylene block copolymer, and the adhesion promoter comprises 72% of vinyl trimethoxy silane, 18% of butyl trimethoxy silane and 10% of phenyl trimethoxy silane; the antistatic agent comprises 20% barium sulfate, 40% graphene and 40% La x sr 1-x ca y mg 1-y O 3 Wherein said La x sr 1-x Pr y mg 1-y O 3 Wherein x=0.9 and y=0.8; the curing agent comprises 70% of polyether amine and 30% of polymaleic anhydride, the molecular weight of the polyether amine is 4500, the cosolvent is dipropylene glycol butyl ether acetate, and the thixotropic agent is fumed silica.
The coatings tested in the present invention were tested 5 hours after curing, with conventional testing methods being carried out with reference to the latest GB/T22374-2018.
The results of the performance tests of examples 1-3 and comparative examples 1-5 are set forth below:
Figure BDA0004016057050000061
as can be seen from Table 1, the adhesion promoter of comparative example 1 was vinyltrimethoxysilane, the antistatic agent of comparative example 2 comprised 60% barium sulfate, 40% graphene, the curing agent of comparative example 3 was polyetheramine, the tetrafluoroethylene-ethylene-vinyl acetate copolymer of comparative example 4 was absent, and TiC-Ti was not added to comparative example 5 3 SiC 2 Has influence on the adhesive strength, ageing resistance, antistatic performance and flame retardant performance of the water-based epoxy resin.
Finally, it should be noted that the above-mentioned embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same, and although the present invention has been described in detail with reference to examples, it should be understood by those skilled in the art that modifications and equivalents may be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention, and all such modifications and equivalents are intended to be encompassed in the scope of the claims of the present invention.

Claims (10)

1. An antistatic nonflammable water-based epoxy coating, which is characterized in that: the antistatic non-ignition waterborne epoxy coating comprises a component A and a component B, wherein the mass ratio of the component A to the component B is 2-3:1, and the component A comprises the following components in parts by weight:
35-40 parts of epoxy resin, 16-18 parts of maleic anhydride modified epoxy resin, 6-8 parts of reactive diluent, 1.5-2 parts of dispersing agent, 0.5-1 part of plasticizer, 35-40 parts of filler, 1-2 parts of wetting agent, 1.5-3 parts of adhesion promoter and 15-20 parts of antistatic agent;
the component B comprises the following components: 75-80 parts of curing agent, 1-1.5 parts of cosolvent, 8-12 parts of deionized water and 0.2-0.4 part of thixotropic agent.
2. The antistatic nonflammable aqueous epoxy coating according to claim 1, wherein: the epoxy resin is at least one of bisphenol A type epoxy resin, bisphenol F type epoxy resin and phenolic epoxy resin.
3. The antistatic nonflammable aqueous epoxy coating according to claim 1, wherein: the reactive diluent is ethylene glycol monoethyl ether or allyl glycidyl ether; the dispersing agent is one of fluorine modified polyacrylate, ethylene-acrylic acid copolymer and butyl stearate.
4. The antistatic nonflammable aqueous epoxy coating according to claim 1, wherein: the plasticizer is selected from one of benzyl alcohol and alcohol ester-12, and the filler is selected from one of silica powder, aluminum hydroxide, magnesium hydroxide and basic zinc carbonate.
5. The antistatic nonflammable aqueous epoxy coating according to claim 1, wherein: the wetting agent comprises 55-65% of epoxidized soybean oil and 35-45% of polyoxyethylene polyoxypropylene block copolymer.
6. The antistatic nonflammable aqueous epoxy coating according to claim 1, wherein: the adhesion promoter comprises 70-72% of vinyl trimethoxy silane, 14-18% of butyl trimethoxy silane and 10-15% of phenyl trimethoxy silane; the antistatic agent comprises 15-20% of barium sulfate, 35-40% of graphene and 40-50% of La x sr 1-x ca y mg 1-y O 3 Wherein said La x sr 1-x Pr y mg 1-y O 3 X is more than or equal to 0.7 and less than or equal to 0.9,0.6, and y is more than or equal to 0.8.
7. The antistatic nonflammable aqueous epoxy coating according to claim 1, wherein: the curing agent comprises 65-70% of polyether amine and 30-35% of polymaleic anhydride, wherein the molecular weight of the polyether amine is 4200-4500.
8. The antistatic nonflammable aqueous epoxy coating according to claim 1, wherein: the cosolvent is one of polypropylene glycol glycidyl ether or dipropylene glycol butyl ether acetate, and the thixotropic agent is fumed silica.
9. The antistatic nonflammable aqueous epoxy coating according to claim 1, wherein: the antistatic non-ignition waterborne epoxy coating A also comprises 5-8 parts of tetrafluoroethylene-ethylene-vinyl acetate copolymer, wherein the tetrafluoroethylene content is 8-10wt%, the ethylene content is 35-45wt%, and the balance is vinyl acetate.
10. The antistatic nonflammable aqueous epoxy coating according to claim 1, wherein: the antistatic non-ignition waterborne epoxy coating A component also comprises 4-7 parts of TiC-Ti 3 SiC 2 。
CN202211712212.3A 2022-12-26 2022-12-26 Antistatic nonflammable water-based epoxy coating Pending CN116102951A (en)

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