CN110229602A - Fluorocarbon coating and preparation method thereof and coating process - Google Patents

Fluorocarbon coating and preparation method thereof and coating process Download PDF

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Publication number
CN110229602A
CN110229602A CN201910466067.7A CN201910466067A CN110229602A CN 110229602 A CN110229602 A CN 110229602A CN 201910466067 A CN201910466067 A CN 201910466067A CN 110229602 A CN110229602 A CN 110229602A
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China
Prior art keywords
agent
coating
component
fluorocarbon
parts
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CN201910466067.7A
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Chinese (zh)
Inventor
张少林
杨淦伟
王晓利
袁磊
柯浪滔
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Jiangmen Weifu Technology Co Ltd
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Jiangmen Weifu Technology Co Ltd
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Priority to CN201910466067.7A priority Critical patent/CN110229602A/en
Publication of CN110229602A publication Critical patent/CN110229602A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/14Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/24Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D175/00Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
    • C09D175/04Polyurethanes
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D5/00Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/08Anti-corrosive paints

Abstract

The present invention relates to a kind of fluorocarbon coating and preparation method thereof and coating process.The raw material for preparing the fluorocarbon coating includes the first component and the second component, first component in terms of mass fraction including 50 parts~80 parts of water-based fluorocarbon resin, 0.1 part~1 part of defoaming agent, 1 part~8 parts of coalescing agent, 0.1 part~1 part of substrate wetting agents, 0.1 part~1 part of levelling agent and 0.1 part~1.5 parts of emulsion thickener, the second component in terms of mass percentage containing 70%~100% curing agent;Curing agent is isocyanate curing agent, and the molar ratio of the isocyanate group in hydroxyl and curing agent in water-based fluorocarbon resin is 1:(1~1.8).The weatherability of above-mentioned fluorocarbon coating is preferable.

Description

Fluorocarbon coating and preparation method thereof and coating process
Technical field
The present invention relates to technical field of coatings, more particularly to a kind of fluorocarbon coating and preparation method thereof and coating process.
Background technique
Outdoor steel structure material includes large-scale engineering machinery, bridge, communal facility etc., be particularly easy in a natural environment by Corrosion.Coating protection is to reduce one of metal erosion most efficient method.Wherein, fluorocarbon coating has certain weatherability, can Applied in coating protection.With the expansion of the application range to steel structure material, the weatherability of coating is required to be gradually increased.It passes The weatherability of the solvent type fluorocarbon coating of system is not able to satisfy actual demand.
Summary of the invention
Based on this, it is necessary to provide a kind of preferable fluorocarbon coating of weatherability.
In addition, also providing the preparation method and coating process of a kind of fluorocarbon coating.
A kind of fluorocarbon coating, prepare the fluorocarbon coating raw material include the first component and the second component, described first group Divide in terms of mass fraction including 50 parts~80 parts of water-based fluorocarbon resin, 0.1 part~1 part of defoaming agent, 1 part~8 parts of film forming Auxiliary agent, 0.1 part~1 part of substrate wetting agents, 0.1 part~1 part of levelling agent and 0.1 part~1.5 parts of emulsion thickener, it is described Second component in terms of mass percentage containing 70%~100% curing agent;Wherein, the curing agent is cured with isocyanates The molar ratio of agent, the isocyanate group in hydroxyl and the curing agent in the water-based fluorocarbon resin is 1:(1~1.8).
Above-mentioned fluorocarbon coating include the first component and the second component, the first component include water-based fluorocarbon resin, defoaming agent, at Film auxiliary agent, substrate wetting agents, levelling agent and emulsion thickener, the second component contain curing agent in terms of mass percentage, wherein Curing agent is isocyanate curing agent, and the molar ratio of the isocyanate group in hydroxyl and curing agent in water-based fluorocarbon resin is 1: Each raw material coordinated of (1~1.8), the first component and the second component, so that fluorocarbon coating has preferable weatherability.Through trying Verifying, the water resistance of above-mentioned fluorocarbon coating are 120h~720h, and acid resistance is 120h~4000h, alkali resistance be for 24 hours~ 1500h, resistance to neutral salt spray are 480h~1000h, and resistance to condensation performance is 240h~480h, and artificial weathering ageing resistance is 1000h~3000h, adhesive force are 7.4MPa~12.0MPa.
The water-based fluorocarbon resin is the water-based fluorocarbon resin that solid content is 40%~60% in one of the embodiments, Lotion.
The coalescing agent is selected from dipropylene class coalescing agent and 2,2,4- front threes in one of the embodiments, At least one of base -1,3- pentanediol mono isobutyrate class coalescing agent.
The substrate wetting agents are polyether modified siloxane class wetting agent in one of the embodiments,.
The curing agent is hydrophilic isocyanate curing agent in one of the embodiments,.
The defoaming agent is selected from silica-based defoaming agent, mineral oil defoaming agent, organic in one of the embodiments, At least one of silicon class defoaming agent and polymer-like antifoams;
And/or the emulsion thickener is selected from least one of alkali swollen thickener and polyurethanes thickener.
The levelling agent is non-ionic levelling agent in one of the embodiments,.
In one of the embodiments, first component further include in terms of mass fraction 5 parts~15 parts solvent, 0.01 Part~1 part of water phase thickener, 0.1 part~1 part of dispersing agent, 0.01 part~1 part of pigments and fillers wetting agent, 0.1 part~1 part Anti-settling agent, 0.1 part~1 part of corrosion inhibitor, 0.01 part~30 parts of colorant, 0.01 part~25 parts of filler and 0.1 part ~1.5 parts of at least one of pH adjusting agent.
The solvent is selected from least one of deionized water and pure water in one of the embodiments,.
In one of the embodiments, the water phase thickener in cellulose ether and cellulose ether derivative at least It is a kind of.
The dispersing agent is polycarboxylic acids ammonium salt class dispersing agent in one of the embodiments,.
The pigments and fillers wetting agent is selected from polyoxyethylene octane alkylphenol ether, α-phenyl first in one of the embodiments, In base-ω-[(1,1,3,3- tetramethyl butyl) phenoxy group]-poly- (oxygen -1,2- ethylidene) and ethyoxyl class fatty alcohol at least It is a kind of.
It is anti-settling to be selected from modified ureas anti-settling agent, the polyurethanes of urea-modified for the anti-settling agent in one of the embodiments, At least one of agent, polyamide wax amine salt anti-settling agent and polyamide wax sodium salt anti-settling agent.
The corrosion inhibitor is selected from aminocarboxylates corrosion inhibitor, organic zinc chela in one of the embodiments, Close at least one of species corrosion inhibitor and the anti-flash rusting agent of phosphate chelates.
The colorant is selected from least one of titanium dioxide and mill base in one of the embodiments,.
The filler is selected from least one of mica powder and barium sulfate in one of the embodiments,.
The pH adjusting agent is selected from 2-amino-2-methyl-1-propanol, N, N- dimethyl in one of the embodiments, At least one of ethanol amine and methyl silanol potassium.
In one of the embodiments, second component in terms of mass percentage containing 0.01%~30% hydrotropy Agent.
The cosolvent is polyurethane grade solvent in one of the embodiments,.
A kind of preparation method of fluorocarbon coating includes the following steps: the raw material mixing that will prepare the fluorocarbon coating, obtains Fluorocarbon coating, the raw material for preparing the fluorocarbon coating includes the first component and the second component, and first component is with mass fraction Meter includes 50 parts~80 parts of water-based fluorocarbon resin, 0.1 part~1 part of defoaming agent, 1 part~8 parts of coalescing agent, 0.1 part~1 The substrate wetting agents, 0.1 part~1 part of levelling agent and 0.1 part~1.5 parts of emulsion thickener of part, second component is with matter Amount percentage composition meter contains 70%~100% curing agent, and the curing agent is isocyanate curing agent, the water-based fluorocarbon tree The molar ratio of the isocyanate group in hydroxyl and the curing agent in rouge is 1:(1~1.8).
It is described in one of the embodiments, to mix the raw material for preparing the fluorocarbon coating, obtain the step of fluorocarbon coating Suddenly include:
By the water-based fluorocarbon resin, the defoaming agent, the coalescing agent, the substrate wetting agents, the levelling agent And the emulsion thickener mixing, obtain first component;And
First component is mixed with second component, obtains fluorocarbon coating.
A kind of coating process, includes the following steps:
To form paint-based bottom on coated article;And
The above-mentioned fluorocarbon coating of coating on the surface at the paint-based bottom.
Described in one of the embodiments, includes: described to be coated to form paint-based bottom on coated article the step of Priming paint is formed in piece installing, obtains the paint-based bottom;
Alternatively, it is described on coated article formed paint-based bottom the step of include: described to form priming paint on coated article, Intermediate layer paint is formed on the surface of the priming paint, obtains the paint-based bottom.
Specific embodiment
It to facilitate the understanding of the present invention, below will be to invention is more fully described.It is shown below of the invention Preferred embodiment.But the invention can be realized in many different forms, however it is not limited to implementation described herein Example.It is made the disclosure of the present invention more thorough and comprehensive on the contrary, purpose of providing these embodiments is.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool The purpose of the embodiment of body, it is not intended that in the limitation present invention.
The fluorocarbon coating of one embodiment has preferably antiseptic property, has excellent weather resistance, can be used as long-acting type anti-corrosion Lose finishing coat.Specifically, the raw material for preparing fluorocarbon coating includes the first component and the second component, and the first component is wrapped in terms of mass fraction Include 50 parts~80 parts of water-based fluorocarbon resin, 0.1~1 part of defoaming agent, 1 part~8 parts of coalescing agent, 0.1 part~1 part of base Material wetting agent, 0.1 part~1 part of levelling agent and 0.1 part~1.5 parts of emulsion thickener, the second component is with mass percentage Count the curing agent containing 70%~100%;Wherein, curing agent is isocyanate curing agent, the hydroxyl in water-based fluorocarbon resin with The molar ratio of isocyanate group in curing agent is 1:(1~1.8).
The C-F bond strength of fluorocarbon resin is high, and bond energy is up to 485.6KJ/mol, has after fluorocarbon coating can be made to form a film Stronger stability and chemical inertness, and have both the photodegradative performance of uvioresistant.Fluorocarbon resin has preferably rotproofness and resistance to Hou Xing is able to extend the service life of manufactured corrosion-inhibiting coating, reduces because repeating painting anticorrosion coating due to bring cost of labor And Material Cost.
Water-based fluorocarbon resin is the water-based fluorocarbon resin containing hydroxyl in one of the embodiments,.Further, aqueous The hydroxyl value of fluorocarbon resin is 45 (mgKOH/g)~75 (mgKOH/g).
Water-based fluorocarbon resin is the water-based fluorocarbon resin cream that solid content is 40%~60% in one of the embodiments, Liquid.Further, the mass percentage of fluorine element is greater than 20% in water-based fluorocarbon resin emulsion.Further, aqueous fluorine Carbon resin is aqueous FEVE resin emulsion.Aqueous FEVE resin have unique weatherability and pollution resistance, strong chemical-resistant stability, Film forming under room temperature or middle low temperature, and itself without organic solvent, it is nontoxic, have no irritating odor, belong to environmentally friendly production Product.Wherein, solid content, that is, mass percentage.
In one of the embodiments, water-based fluorocarbon resin be selected from ETERFLON4302AF water-based fluorocarbon resin emulsion and At least one of ZB-F600 water-based fluorocarbon resin emulsion.Further, water-based fluorocarbon resin emulsion is selected from Changxing chemical industry At least one of ETERFLON4302AF water-based fluorocarbon resin emulsion and vibration nation ZB-F600 water-based fluorocarbon resin emulsion.Wherein, The solid content of Changxing chemical industry ETERFLON4302AF water-based fluorocarbon resin emulsion is 49%~51%, and hydroxyl value is 45 (mgKOH/g) ~55 (mgKOH/g).The solid content 40%~42% of vibration nation ZB-F600 water-based fluorocarbon resin emulsion, hydroxyl value are 55 (mgKOH/g) ~75 (mgKOH/g).
The first component is in terms of mass fraction including 60 parts~70 parts of water-based fluorocarbon resin in one of the embodiments,. In wherein some embodiments, the first component is in terms of mass fraction including 50 parts, 55 parts, 60 parts, 65 parts, 70 parts, 75 parts or 80 The water-based fluorocarbon resin of part.
Defoaming agent has brokenly bubble and antifoaming ability, can be improved the film-formation result of coating.Disappear in one of the embodiments, Infusion in silica-based defoaming agent, mineral oil defoaming agent, organic silicon defoaming agent and polymer-like antifoams extremely Few one kind.Further, defoaming agent is selected from NXZ defoaming agent, DF-90 defoaming agent, FoamstarA10 defoaming agent, Foamaster At least one of 111 defoaming agents and BYK-024 defoaming agent.Further, defoaming agent is defoamed selected from Nuo Puke company NXZ Agent, Dongguan De Feng company DF-90 defoaming agent, Kening Co., Ltd's FoamstarA10 defoaming agent, Kening Co., Ltd Foamaster 111 disappear At least one of infusion and Bi Ke company BYK-024 defoaming agent.It should be noted that defoaming agent be not limited to it is above-mentioned point out disappear Infusion, or the upper acceptable defoaming agent of other coating.
The first component is in terms of mass fraction including 0.2 part~0.8 part of defoaming agent in one of the embodiments,.Into one Step ground, the first component is in terms of mass fraction including 0.4 part~0.6 part of defoaming agent.In wherein some embodiments, the first component Including 0.1 part, 0.2 part, 0.3 part, 0.4 part, 0.5 part, 0.6 part, 0.7 part, 0.8 part, 0.9 part or 1 part in terms of mass fraction Defoaming agent.
Coalescing agent can reduce the minimum film formation temperature of fluorocarbon coating, improve the mobility of coating, improve the cause of film Close degree, to improve the rotproofness etc. of coating.One embodiment wherein, coalescing agent are selected from dipropylene class film forming and help At least one of agent and 2,2,4- trimethyl -1,3- pentanediol mono isobutyrate class coalescing agent.Further, coalescing agent Selected from least one of DPnB coalescing agent and Texanol coalescing agent.Specifically, coalescing agent is selected from DOW Chemical DPnB At least one of coalescing agent and Eastman Chemical Texanol coalescing agent.It should be noted that coalescing agent is not limited to State the coalescing agent pointed out, or the upper acceptable coalescing agent liquid of other coating.
The first component is in terms of mass fraction including 2 parts~7 parts of coalescing agent in one of the embodiments,.Further Ground, the first component is in terms of mass fraction including 3 parts~6 parts of coalescing agent.In wherein some embodiments, the first component is with matter Amount number meter includes 1 part, 2 parts, 3 parts, 4 parts, 5 parts, 6 parts, 7 parts or 8 parts of coalescing agent.
Substrate wetting agents can improve the surface tension and permeability of fluorocarbon coating, can preferably soak substrate, To improve the adhesive force of fluorocarbon coating.
Substrate wetting agents are polyether modified siloxane class wetting agent in one of the embodiments,.Polyether modified siloxane Class wetting agent can tempestuously reduce the surface tension of coating, improve the wetability with substrate, prevent coating shrinkage cavity.Further Ground, substrate wetting agents are selected from BYK-306 wetting agent, BYK-333 wetting agent, BYK-346 wetting agent, Digao Twin4200 wetting agent At least one of.It should be noted that substrate wetting agents are not limited to the above-mentioned substrate wetting agents pointed out, or other paintings Material learns upper acceptable substrate wetting agents.
The first component is in terms of mass fraction including 0.2 part~0.9 part of substrate wetting agents in one of the embodiments,. Further, the first component is in terms of mass fraction including 0.3 part~0.8 part of substrate wetting agents.Further, the first component Including 0.4 part~0.7 part of substrate wetting agents in terms of mass fraction.In wherein some embodiments, the first component is with mass parts Number meter is soaked including 0.1 part, 0.2 part, 0.3 part, 0.4 part, 0.5 part, 0.6 part, 0.7 part, 0.8 part, 0.9 part or 1 part of substrate Agent.
Levelling agent can reduce the surface tension of coating, improves the levelability and uniformity of coating, improves the infiltration of coating Property, a possibility that spot and spot are generated when can be reduced brushing, coating can be promoted during the drying and film forming process by increasing spreadability Form a smooth, smooth, uniform natural film.
Levelling agent is non-ionic levelling agent in one of the embodiments,.Further, levelling agent is selected from DSX 2000 At least one of 3220 levelling agent of levelling agent, Levelling 2000D levelling agent and DSX.
The first component is in terms of mass fraction including 0.2 part~0.8 part of levelling agent in one of the embodiments,.Into one Step ground, the first component is in terms of mass fraction including 0.4 part~0.6 part of levelling agent.In wherein some embodiments, the first component Including 0.1 part, 0.2 part, 0.3 part, 0.4 part, 0.5 part, 0.6 part, 0.7 part, 0.8 part, 0.9 part or 1 part in terms of mass fraction Levelling agent.
Emulsion thickener has adjusting coating is middle and high to cut viscosity, improves the effect of coating anti-splash.A reality wherein It applies in example, emulsion thickener is selected from least one of alkali swollen thickener and polyurethanes thickener.Further, lotion increases Thick dose is selected from ROHM AND HAAS ASE60 thickener, ROHM AND HAAS TT-935 thickener, ROHM AND HAAS RM-2020 thickener and Luo Men At least one of Haas RM-8w thickener.
The first component is in terms of mass fraction including 0.5 part~1 part of emulsion thickener in one of the embodiments,.? In some of embodiments, the first component in terms of mass fraction including 0.1 part, 0.3 part, 0.5 part, 0.7 part, 0.9 part, 1 part, 1.3 parts or 1.5 parts of emulsion thickener.
In one of the embodiments, the first component further include in terms of mass fraction 5 parts~15 parts solvent, 0.01 part~ 1 part of water phase thickener, 0.1 part~1 part of dispersing agent, 0.01 part~1 part of pigments and fillers wetting agent, 0.1 part~1 part anti-settling Agent, 0.1 part~1 part of corrosion inhibitor, 0.01 part~30 parts of colorant, 0.01 part~25 parts of filler and 0.1 part~1.5 At least one of the pH adjusting agent of part,.
Solvent is selected from least one of deionized water and pure water in one of the embodiments,.
The first component is in terms of mass fraction including 7 parts~13 parts of solvent in one of the embodiments,.Further, First component is in terms of mass fraction including 9 parts~11 parts of solvent.In wherein some embodiments, the first component is with mass fraction Meter includes 5 parts, 6 parts, 7 parts, 8 parts, 9 parts, 10 parts, 11 parts, 12 parts, 13 parts, 14 parts or 15 parts of solvent.
Water phase thickener can adjust the low of fluorocarbon coating and cut viscosity, improve paint thixotropy, sag resistance.Wherein one In a embodiment, water phase thickener is selected from least one of cellulose ether and cellulose ether derivative.Wherein, cellulose ether spreads out Biology is hydroxyethyl cellulose (HEC), methyl hydroxyethylcellulose (MHEC), ethylhydroxyethylcellulose (EHEC) or methyl Hydroxypropyl cellulose (MHPC) etc..Further, water phase thickener is hydroxyethyl cellulose.Specifically, water phase thickener is Asia Across imperial HEC250HBR hydroxyethyl cellulose.
It should be noted that water phase thickener is not limited to hydroxyethyl cellulose, it can also be other cellulose ethers, such as can Think sodium carboxymethylcellulose.
The first component is in terms of mass fraction including 0.01 part~0.8 part of water phase thickener in one of the embodiments,. Further, the first component is in terms of mass fraction including 0.01 part~0.5 part of water phase thickener.Further, first group Divide the water phase thickener in terms of mass fraction including 0.01 part~0.3 part.In wherein some embodiments, the first component is with quality Number meter includes 0.01 part, 0.02 part, 0.03 part, 0.04 part, 0.05 part, 0.06 part, 0.07 part, 0.08 part, 0.09 part, 0.1 Part, 0.2 part, 0.3 part, 0.4 part, 0.5 part, 0.6 part, 0.7 part, 0.8 part, the water phase thickener of 0.9 part or 1 part.
Dispersing agent dispersion stabilization with higher and good water resistance, be conducive to obtain uniformly, water resistance it is preferable Coating, while the viscosity of coating can be reduced, improve the mobility of coating.
Dispersing agent is polycarboxylic acids ammonium salt class dispersing agent in one of the embodiments,.Further, dispersing agent is selected from SN- At least one of 100 dispersing agent of 5027 dispersing agents, 34 dispersing agent of Hydropalat and Hydropalat.Specifically, disperse Agent is selected from least one of 100 dispersing agent of SN-5027 dispersing agent, 34 dispersing agent of Hydropalat and Hydropalat.It needs It is noted that dispersing agent is not limited to the above-mentioned dispersing agent pointed out, or the upper acceptable dispersing agent of other coating.
The first component is in terms of mass fraction including 0.3 part~0.8 part of dispersing agent in one of the embodiments,.Into one Step ground, the first component is in terms of mass fraction including 0.4 part~0.6 part of dispersing agent.In wherein some embodiments, the first component Including 0.2 part, 0.3 part, 0.4 part, 0.5 part, 0.6 part, 0.7 part, 0.8 part, 0.9 part or 1 part of dispersing agent in terms of mass fraction.
Anti-settling agent can be improved the viscosity of coating, and coating is made to have certain thixotropy, enhance the steady of brushing-on color dispersions system It is qualitative.Anti-settling agent is selected from polyurethanes anti-settling agent, the polyamides of modified ureas anti-settling agent, urea-modified in one of the embodiments, At least one of amine wax amine salt anti-settling agent and polyamide wax sodium salt anti-settling agent.Further, anti-settling agent is selected from BYK-420 At least one of anti-settling agent, BYK-425 anti-settling agent, AQ633E anti-settling agent and AQ600 anti-settling agent.Further, anti-settling agent Selected from Bi Ke company BYK-420 anti-settling agent, Bi Ke company BYK-425 anti-settling agent, Nanben Chemical Company AQ633E anti-settling agent and nanmu At least one of this chemical conversion company AQ600 anti-settling agent.
The first component is in terms of mass fraction including 0.2 part~0.8 part of anti-settling agent in one of the embodiments,.Into one Step ground, the first component is in terms of mass fraction including 0.4 part~0.6 part of anti-settling agent.In wherein some embodiments, the first component Including 0.1 part, 0.2 part, 0.3 part, 0.4 part, 0.5 part, 0.6 part, 0.7 part, 0.8 part, 0.9 part or 1 part in terms of mass fraction Anti-settling agent.
Corrosion inhibitor is able to suppress corrosion, so that coating has the function of preventing flash rusting.An implementation wherein In example, corrosion inhibitor is selected from aminocarboxylates corrosion inhibitor, organic zinc complex class corrosion inhibitor, phosphate chelating At least one of anti-flash rusting agent of species.Further, corrosion inhibitor is selected from NALZINFA179 corrosion inhibitor, CE660B At least one of anti-flash rusting agent and the anti-flash rusting agent of DefrosFR19.
The first component is in terms of mass fraction including 0.2 part~0.8 part of corrosion inhibitor in one of the embodiments,. Further, the first component is in terms of mass fraction including 0.4 part~0.6 part of corrosion inhibitor.In wherein some embodiments, First component is in terms of mass fraction including 0.1 part, 0.2 part, 0.3 part, 0.4 part, 0.5 part, 0.6 part, 0.7 part, 0.8 part, 0.9 part Or 1 part of corrosion inhibitor.
Colorant can make coating have certain color, additionally it is possible to the ultraviolet-resistent property of coating can be effectively improved, so that applying Material keeps original state color for a long time.Colorant is selected from least one of titanium dioxide and mill base in one of the embodiments,. Further, colorant is selected from least one of rutile type titanium white, carbon black color paste and phthalocyanine blue mill base.Further Ground, colorant in stone original R-930 titanium dioxide, Du Pont's R-902 titanium dioxide, carbon black color paste and phthalocyanine blue mill base at least one Kind.
The first component is in terms of mass fraction including 5 parts~25 parts of colorant in one of the embodiments,.Further Ground, the first component is in terms of mass fraction including 10 parts~20 parts of colorant.Further, the first component is in terms of mass fraction Including 13 parts~18 parts of colorant.In wherein some embodiments, the first component in terms of mass fraction including 0.01 part, 1 part, 5 parts, 10 parts, 13 parts, 15 parts, 18 parts, 20 parts, 25 parts or 30 parts of colorant.
Filler has the function of increment, can improve the shelf characteric and workability of coating, and the machinery for improving film is strong Degree, wearability, water resistance, uviolresistance, thermal insulation, brushing resistance, crack resistance and alkali resistance etc..An implementation wherein In example, filler is selected from least one of mica powder and barium sulfate.Further, the partial size of filler is 1000 mesh~5000 mesh. Further, the partial size of filler is 2500 mesh~5000 mesh.Specifically, barium sulfate is blanc fixe.
The first component is in terms of mass fraction including 0.01 part~20 parts of filler in one of the embodiments,.Further Ground, the first component is in terms of mass fraction including 0.01 part~15 parts of filler.Further, the first component is in terms of mass fraction Including 0.01 part~10 parts of filler.Specifically, the first component is in terms of mass fraction including 1 part~8 parts of filler.Wherein one In a little embodiments, the first component is in terms of mass fraction including 0.01 part, 1 part, 2 parts, 3 parts, 4 parts, 5 parts, 6 parts, 7 parts, 8 parts, 9 Part, 10 parts, 13 parts, 15 parts, 18 parts, the fillers of 20 parts or 25 parts.
Pigments and fillers wetting agent, that is, wetting dispersing agent can reduce the interfacial tension between liquid/solid, enhance colorant and filler The lyophily on surface improves mechanical lapping efficiency.Pigments and fillers wetting agent is selected from polyoxyethylene octane in one of the embodiments, Alkylphenol ether, α-phenyl methyl-ω-[(1,1,3,3- tetramethyl butyl) phenoxy group]-poly- (oxygen -1,2- ethylidene) and ethyoxyl At least one of class fatty alcohol.Further, pigments and fillers wetting agent be selected from Triton X-405, Triton CF-10 and At least one of Hydropalat 306.Further, pigments and fillers wetting agent is selected from the Dow Chemical Company Triton X-405, pottery At least one of family name company's T riton CF-10 and Kening Co., Ltd Hydropalat 306.It should be noted that pigments and fillers are moistened Humectant is not limited to the above-mentioned pigments and fillers wetting agent pointed out, or the upper acceptable pigments and fillers wetting agent of other coating.
Pigments and fillers of first component in terms of mass fraction including 0.05 part~0.8 part soak in one of the embodiments, Agent.Further, the first component is in terms of mass fraction including 0.3 part~0.6 part of pigments and fillers wetting agent.Some implementations wherein In example, the first component is in terms of mass fraction including 0.01 part, 0.05 part, 0.1 part, 0.2 part, 0.3 part, 0.4 part, 0.5 part, 0.6 Part, 0.7 part, 0.8 part, the pigments and fillers wetting agent of 0.9 part or 1 part.
PH adjusting agent is capable of the pH value of adjusting coating, promotes the dispersion of colorant and filler, improves the color developing of colorant, Reduce coating smell.It is AMP-95pH regulator and BS-198pH regulator that pH adjusting agent, which is selected from, in one of the embodiments, At least one of.It should be noted that pH adjusting agent is not limited to the above-mentioned pH adjusting agent pointed out, or other coating Upper acceptable pH adjusting agent.
The first component is in terms of mass fraction including 0.5 part~1 part of pH adjusting agent in one of the embodiments,.At it In in some embodiments, the first component is in terms of mass fraction including 0.1 part, 0.3 part, 0.5 part, 0.7 part, 1 part, 1.3 parts or 1.5 The pH adjusting agent of part.
In one of the embodiments, the first component in terms of mass fraction including 60 parts~70 parts water-based fluorocarbon resin, 2 Part~7 parts of coalescing agent, 0.2 part~0.9 part of substrate wetting agents, 7 parts~13 parts of solvent, 0.01 part~0.8 part of water Phase thickener, 0.3 part~0.8 part of dispersing agent, 0.2 part~0.8 part of defoaming agent, the wetting of 0.05 part~0.8 part of pigments and fillers Agent, 0.2 part~0.8 part of anti-settling agent, 0.2 part~0.8 part of corrosion inhibitor, 5 parts~25 parts of colorant, 0.01 part~20 The filler, 0.5 part~1 part of pH adjusting agent, 0.2 part~0.8 part of levelling agent and 0.5 part~1 part of emulsion thickener of part.This Kind setting can not only improve the adhesive force and weatherability of coating, additionally it is possible to which the compactness for improving coating obtains having more excellent machine The coating of tool performance.
Curing agent can speed up paint solidification, improve the crosslink density of coating, enhance the mechanical performance and anti-corrosive properties of coating Energy.Curing agent is hydrophilic isocyanate curing agent in one of the embodiments,.Such setting can either accelerate coating solid Change, additionally it is possible to reduce the VOC (volatile organic compounds, volatile organic compounds) in coating.Further Ground, curing agent are hydrophily HDI isocyanate trimer.Further, curing agent is selected from 278 curing agent of Aquolin, 305 At least one of curing agent and 2655XP curing agent.Specifically, curing agent is selected from ten thousand China's Aquolin278 curing agent, Bayer At least one of 305 curing agent and Bayer Bayhydur2655XP curing agent.
In one of the embodiments, the second component in terms of mass percentage containing 80%~90% curing agent.? In some of embodiments, the second component in terms of mass percentage containing 70%, 75%, 80%, 85%, 90%, 95% or 100% curing agent.
In one of the embodiments, the second component in terms of mass percentage containing 0%~30% cosolvent.Hydrotropy Agent has the function of the dispersion assisted curing agent in coating, reduces coating application viscosity.Further, cosolvent is polyurethane Grade solvent.Further, cosolvent is selected from propylene glycol methyl ether acetate, propylene glycol diacetate and 1,3- dimethyl -2- miaow At least one of oxazoline ketone.
In one of the embodiments, the second component in terms of mass percentage containing 0.01%~30% cosolvent. Further, the second component in terms of mass percentage containing 5%~25% cosolvent.Further, the second component with Mass percentage meter contains 10%~20% cosolvent.In wherein some embodiments, the second component is contained with quality percentage Meter contains 0%, 5%, 10%, 15%, 20%, 25% or 30% cosolvent.
In one of the embodiments, the second component in terms of mass percentage containing 75%~90% curing agent and 10%~25% cosolvent.It is such that the rate of drying that can be improved coating is set.
It should be noted that the first component and the second component individually save in fluorocarbon coating, needing using fluorine carbon By the first component and the second component with the isocyanate group in the hydroxyl and curing agent in water-based fluorocarbon resin when coating Molar ratio is 1:(1~1.8) mixing.
Fluorocarbon coating further includes third component in one of the embodiments,.Third component is selected from deionized water and pure water At least one of.Third component is used to adjust the viscosity of fluorocarbon coating.
It should be noted that third component can be omitted.At this time can in coating fluorocarbon coating deionized water or pure Water dilutes fluorocarbon coating to required viscosity.It should be noted that if when the viscosity of fluorocarbon coating can satisfy actual needs, third Component can be omitted.
Fluorocarbon coating is made of the first component and the second component in one of the embodiments,.First component is with mass parts Number meter is made of following component: 50 parts~80 parts of water-based fluorocarbon resin, 1 part~8 parts of coalescing agent, 0.1 part~1 part of base Material wetting agent, 5 parts~15 parts of solvent, 0.01 part~1 part of water phase thickener, 0.1 part~1 part of dispersing agent, 0.1 part~1 The defoaming agent of part, 0.01 part~1 part of pigments and fillers wetting agent, 0.1 part~1 part of anti-settling agent, 0.1 part~1 part of corrosion inhibit Agent, 0.01 part~30 parts of colorant, 0.01 part~25 parts of filler, 0.1 part~1.5 parts of pH adjusting agent, 0.1 part~1 part Levelling agent and 0.1 part~1.5 parts of emulsion thickener.Second component is made of in terms of mass percentage following component: 70%~100% curing agent and 0%~30% cosolvent.Such obtained coating that is arranged is aqueous fluorocarbon coating, weather-proof Property and antiseptic property are preferable, and adhesive force is higher, and gas permeability is preferable, not easily to fall off, better mechanical property, and rate of drying is very fast, VOC Content is low, environmental protection.
The coating mode of fluorocarbon coating is roller coating, spraying or brushing in one of the embodiments,.
The viscosity of fluorocarbon coating is 20 seconds/25 DEG C~60 seconds/25 DEG C in one of the embodiments,.
Above-mentioned fluorocarbon coating include the first component and the second component, the first component include water-based fluorocarbon resin, defoaming agent, at Film auxiliary agent, substrate wetting agents, levelling agent and emulsion thickener, the second component contain curing agent in terms of mass percentage, wherein Curing agent is isocyanate curing agent, and the molar ratio of the isocyanate group in hydroxyl and curing agent in water-based fluorocarbon resin is 1: Each raw material coordinated of (1~1.8), the first component and the second component, so that fluorocarbon coating has preferable weatherability, simultaneously Antiseptic property is prominent, and adhesive force is preferable, not easily to fall off.Experiment proves that the water resistance of above-mentioned fluorocarbon coating be 120h~ 720h, acid resistance are 120h~4000h, and alkali resistance is for 24 hours~1500h, and resistance to neutral salt spray is 480h~1000h, resistance to condensation Performance is 240h~480h, and artificial weathering ageing resistance is 1000h~3000h, and adhesive force is 7.4MPa~12MPa.
The VOC content of traditional fluorocarbon coating is higher, pollutes environment.And the fluorocarbon coating of above embodiment is without height VOC raw material, VOC content meet national standard, safety and environmental protection.
The coating that the fluorocarbon coating of above embodiment is formed has excellent antiseptic property, adhesive force, water resistance, acidproof Property, alkali resistance and salt fog resistance, weather resistance is prominent, be able to extend the service life of the anticorrosive coating system of outdoor steel construction, It reduces and repeats the high cost of labor of coating bring because of weather resistance difference.And the fluorocarbon coating of above embodiment is to life It produces, transport, not stringent fire protection requirement of storing in a warehouse, is a kind of safe, green water paint product.
Furthermore the preparation method of the fluorocarbon coating of above embodiment is provided, includes the following steps: that fluorocarbon coating will be prepared Raw material mixing, obtain fluorocarbon coating.
The raw material that fluorocarbon coating will be prepared in one of the embodiments, mixes, and the step of obtaining fluorocarbon coating includes S110~S120:
S110, water-based fluorocarbon resin, defoaming agent, coalescing agent, substrate wetting agents, levelling agent and emulsion thickener are mixed It closes, obtains the first component.
Further, S110 includes S111~S113:
S111, solvent, water phase thickener, dispersing agent, a part of defoaming agent, wetting agent are mixed with anti-settling agent, obtains One mixture.
Specifically, solvent, water phase thickener, dispersing agent, a part of defoaming agent, wetting agent and anti-settling agent are added sequentially to In dispersion tank, 300rpm~500rpm stirs 5min~15min, obtains the first mixture.
S112, colorant and filler mixing are added into the first mixture, obtain the second mixture.
Specifically, addition colorant and filler into the first mixture, 1000rpm~2000rpm stirring 20min~ 50min obtains the second mixture.
S113, coalescing agent, water-based fluorocarbon resin, substrate wetting agents, pH adjusting agent, levelling are added into the second mixture Agent, remainder defoaming agent and emulsion thickener mixing, obtain the first component.
Specifically, coalescing agent, water-based fluorocarbon resin, substrate wetting agents, pH adjusting agent, stream are added into the second mixture Flat agent, remainder defoaming agent and emulsion thickener, 300rpm~500rpm stir 15min~30min, obtain the first component.
Further, into the second mixture be added coalescing agent, water-based fluorocarbon resin, substrate wetting agents, pH adjusting agent, It further include that the mixture that will be obtained is filtered after the step of levelling agent, remainder defoaming agent and emulsion thickener mix The step of.Specifically, by the second mixture, coalescing agent, water-based fluorocarbon resin, substrate wetting agents, pH adjusting agent, levelling agent, The mixture that remainder defoaming agent and emulsion thickener are mixed to get crosses 200 mesh~350 mesh, obtains filtered viscous slurry As the first component.
Wherein, the mass ratio of a part of defoaming agent and remainder defoaming agent is 0.8:1~1.2:1.Further, one Dividing the mass ratio of defoaming agent and remainder defoaming agent is 1:1.
It should be noted that the first component is not limited to above-mentioned addition or mixed sequence, the first component can will be prepared Whole raw materials mix simultaneously, also can according to need the adding order for selecting each raw material or mixing order.
S120, the first component is mixed with the second component, obtains fluorocarbon coating.
Further, the first component is mixed with the second component, 300rpm~500rpm stirs 5min~15min, obtains Fluorocarbon coating.
The mass ratio of the first component and the second component is (6~17) in one of the embodiments: 1.
The first component and the second component are in one of the embodiments, with isocyanide in hydroxyl in the first component and the second component The molar ratio of perester radical is (1~1.8): 1 mixing.Further, isocyanate group in hydroxyl and the second component in the first component Molar ratio be 1.4:1.
Include the steps that preparing the second component before S120 in one of the embodiments: by curing agent and cosolvent Mixing, obtains the second component.
Further, curing agent and cosolvent being added in dispersion tank, 300rpm~500rpm stirs 5min~15min, Obtain the second component.
The first component and the second component are mixed in one of the embodiments, third component is added, obtains the painting of fluorine carbon Material.
The preparation method of above-mentioned fluorocarbon coating is easy to operate, can prepare with preferable weatherability and compared with the fluorine of high adhesion force Carbon coating.
In addition, also providing a kind of coating process, include the following steps S210~S220:
S210, on coated article formed paint-based bottom.
In one of the embodiments, on coated article formed paint-based bottom the step of include: the shape on to coated article At priming paint, paint-based bottom is obtained.
Priming paint is waterborne zinc-rich primer or water-thinned antirust primer in one of the embodiments,.
In one of the embodiments, priming paint with a thickness of priming paint with a thickness of 20 μm~80 μm.Further, priming paint With a thickness of 30 μm.In one of the embodiments, on coated article formed priming paint the step of include: the coating on to coated article Priming paint is dried at least for 24 hours at normal temperature.Wherein, coating mode is roller coating, spraying or brushing.1~2 priming paint of coating.
It is in one of the embodiments, steel construction or aluminium alloy to coated article.Further, further include before S210 Treat the step of coated article carries out pre-treatment.Wherein, treat coated article carry out pre-treatment include derusted to coated article, surface The conventional treatments such as roughening.
In one of the embodiments, on coated article formed priming paint the step of after further include following steps: the bottom of at Intermediate coat is formed on the surface of paint, obtains paint-based bottom.Such setting is conducive to further increase the anti-corrosive properties to coated article Energy.
Further, intermediate coat is water-based epoxy micaceous iron intermediate coat.Further, among being formed on the surface of priming paint The step of paint includes: the coating intermediate coat on the surface of priming paint, is dried at normal temperature at least for 24 hours.Wherein, coating mode is roller It applies, spray or brushes.1~2 intermediate coat of coating.Wherein, intermediate coat with a thickness of 60 μm~200 μm.
S220, on the surface at paint-based bottom coating above embodiment fluorocarbon coating.
The coating of fluorocarbon coating is in one of the embodiments, with a thickness of 30 μm~80 μm.
Coating mode is roller coating, spraying or brushing in one of the embodiments,.Further, 1~2 fluorine of coating Carbon coating.
S220 includes: to mix the first component and the second component in one of the embodiments, and third component is added and mixes It closes uniformly, obtains fluorocarbon coating;The coating fluorocarbon coating on the surface at paint-based bottom, at normal temperature it is dry at least for 24 hours or in 50 DEG C~80 DEG C dry 0.5h~1h, 1~2 fluorocarbon coating finishing coat of coating.
The coating process of above embodiment is easy to operate, is conducive to improve the antiseptic property to coated article.
The following are specific embodiment parts.
It unless otherwise instructed, does not then include the other components in addition to inevitable impurity in following embodiment.Embodiment It is middle to use drug and instrument if not otherwise indicated, it is this field conventional selection.The experiment of actual conditions is not specified in embodiment Method, according to normal conditions, such as the method that condition described in the prior art or manufacturer are recommended is realized.
Unless otherwise instructed, in following embodiment, " part " indicates mass fraction;The solvent prepared in the first component is Ionized water.
The preparation process of the fluorocarbon coating of each embodiment is as follows:
According to the raw material of table 1~4 and the technological parameter of table 5 and fluorocarbon coating is prepared in accordance with the following steps, specific as follows:
(1) solvent, water phase thickener, dispersing agent, a part of defoaming agent, wetting agent and anti-settling agent are added sequentially to disperse In tank, V1rpm stirs t1min, obtains the first mixture.Colorant and filler, V2rpm stirring are added into the first mixture T2min, so that the fineness of filler obtains the second mixture less than 40 μm.Coalescing agent, aqueous fluorine are added into the second mixture Carbon resin, substrate wetting agents, pH adjusting agent, levelling agent, remainder defoaming agent and emulsion thickener, V3rpm stir t3min, X1 mesh is crossed, collects filtered slurry to get to the first component.Wherein, a part of defoaming agent and remainder defoaming agent Mass ratio is 1:1.
(2) curing agent and cosolvent are mixed, V4rpm stirs t4min, obtains the second component.
(3) first components are with hydroxyl in the first component and the molar ratio of isocyanate group in the second component with the second component Y1 mixing, obtains fluorocarbon coating.Wherein, " -- " indicates to be not added in table 2~4.
Table 1 implements the content that the raw material of fluorocarbon coating is prepared in 1~17
The specific substance of the raw material of fluorocarbon coating is prepared in 2 Examples 1 to 5 of table
The specific substance of the raw material of the first component and the second component is prepared in 3 embodiment 6~11 of table
The specific substance of the raw material of the first component and the second component is prepared in 4 embodiment 12~17 of table
The technological parameter of the preparation process of the fluorocarbon coating of 5 embodiment 1~17 of table
Test:
The adhesive force of the coating of the fluorocarbon coating and comparative example of testing example 1~17, water resistance, acid resistance, alkali resistance, Mechanical performance and VOC after resistance to continuous condensation performance, resistance to neutral salt spray performance, artificial weathering ageing resistance, rate of drying, film forming Content.Wherein, the coating of comparative example is the coating of D-9900 model.See Table 5 for details for measurement result.Table 5 indicate be embodiment 1~ 17 and the state in a reservoir of coating of comparative example, freeze-thaw stability, VOC content, application property, appearance of film, rate of drying, Bend test, impact resistance, cross cut test and early stage water resistance.What table 6 indicated is the coating of embodiment 1~17 and comparative example Water resistance, acid resistance, alkali resistance, resistance to continuous condensation performance, resistance to neutral salt spray performance, artificial weathering ageing resistance and adhesive force.
Preparation of specimen is prepared according to the requirement of 6.3.3 in HG/T 5176-2017.Specifically, it sprays on the steel plate commercially available Waterborne zinc-rich primer, coating thickness be 30 μm, painting be placed on 25 DEG C of dryings for 24 hours.Commercially available water-base epoxy is sprayed on priming paint Yun Tiezhong paint, spraying 2, spraying overall thickness are 70 μm, and per pass painting is placed on 25 DEG C of dryings for 24 hours.Each reality is adjusted with deionized water The viscosity of the coating of example and comparative example is applied to 40s (applying 4# glasss), is used as on finishing coat spray-applied primer after adjusting viscosity, spraying 2, paint Film overall thickness is 70 μm.Spraying is placed on 25 DEG C of dryings, while measuring the rate of drying of paint film.Paint film is measured after maintenance 7 days Adhesive force (not carrying out the adhesive force of salt spray test), mechanical performance, artificial ageing resistance performance, chemical-resistance and progress salt fog Adhesive force after test.
Wherein, state in a reservoir is visually to be detected;Freeze-thaw stability is carried out by A method in GB/T 9268-2008 Measurement;VOC content is measured by GB/T 23986-2009 10.4;Application property is visually to be detected;Appearance of film is with mesh Depending on being detected;Drying time is detected by the regulation of GB/T1728-1979, surface drying by second method carry out, do solid work by first method into Row;Bend test is carried out by the regulation of GB/T 6742-2007;Impact resistance is surveyed by the regulation of GB/T 1732-1993 It is fixed;Cross cut test is carried out by the regulation of GB/T 9286-1998;Early stage water resistance is visually to be detected.Water resistance presses GB/T First method is measured in 1733-1993;Acid resistance in GB/T 9274-1988 by being measured;Alkali resistance presses GB/T 9274- It is measured in 1988;Continuous agglutination,cold test is measured by GB/T 13893-2008;Resistance to neutral salt spray presses GB/T 1771- 2007 are measured;Artificial weathering ageing resistance is measured by circulation A in GB/T 1865-2009;Adhesive force presses GB/T Method is pulled open in 5210-2006 to be measured.Meanwhile all properties and C3, C4 corrosion class H in HG/T 5176-2017 are durable Property performance requirement compares (i.e. C3-H, C4-H).
Table 5
In table 5, " qualification " indicate it is consistent with C3-H and C4-H respective items purpose result, it is " unqualified " indicate than C3-H with C4-H respective items purpose result is poor."/" expression is not detected in embodiment 15, and mainly since curing agent is improper, causing cannot It normally points out coating sample, not can be carried out the test of relevant parameter.
As can be seen from Table 5, the fluorocarbon coating of the fluorocarbon coating of Examples 1 to 9 state in a reservoir, freeze-thaw stability Property, VOC content, application property, appearance of film, rate of drying, bend test, impact resistance, cross cut test and early stage water resistance with C3-H, C4-H are suitable, and are substantially better than the coating of comparative example, illustrate that the fluorocarbon coating of above embodiment has preferable can opening Performance, freeze-thaw stability is good, and application property and appearance of film are good, and rate of drying is fast, and has lower VOC content, bendability Energy, impact resistance, cross cut test are up to standard, and early stage water resistance is good, reach HG/T 5176-2017 steel construction water-repellent preservation The performance requirement of top coat.
Table 6
In table 6, "/" expression is not detected, mainly causes normally to point out since curing agent is improper in embodiment 15 Coating sample not can be carried out the test of relevant parameter.
As can be seen from Table 6, the water resistance of the fluorocarbon coating of Examples 1 to 9 be 120h~720h, acid resistance be 120h~ 4000h, alkali resistance are 96h~1500h, and resistance to neutral salt spray is 480h~1000h, and resistance to condensation performance is 240h~480h, resistance to Artificial weathering aging is 1000h~3000h, and adhesive force is 7.4MPa~12MPa, suitable with C3-H, C4-H, and is substantially better than The coating of comparative example illustrates that the fluorocarbon coating of above embodiment has both preferable anticorrosive property and excellent weatherability.
It is applied in conclusion the fluorocarbon coating of above embodiment has reached HG/T 5176-2017 steel construction with water-repellent preservation The performance requirement of layer matching system: there is preferable water resistance, resistant to chemical media, moisture-proof, resistance to neutral salt spray, weather-proof Property and higher adhesive force, can be used as long-acting type environment-friendly water-based anticorrosive paint finishing coat use.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.

Claims (23)

1. a kind of fluorocarbon coating, which is characterized in that the raw material for preparing the fluorocarbon coating includes the first component and the second component, institute The first component is stated in terms of mass fraction including 50 parts~80 parts of water-based fluorocarbon resin, 0.1 part~1 part of defoaming agent, 1 part~8 The coalescing agent, 0.1 part~1 part of substrate wetting agents, 0.1 part~1 part of levelling agent and 0.1 part~1.5 parts of lotion of part increase Thick dose, second component in terms of mass percentage containing 70%~100% curing agent;Wherein, the curing agent is different The molar ratio of cyanate curing agent, the isocyanate group in hydroxyl and the curing agent in the water-based fluorocarbon resin is 1:(1 ~1.8).
2. fluorocarbon coating according to claim 1, which is characterized in that the water-based fluorocarbon resin be solid content be 40%~ 60% water-based fluorocarbon resin emulsion.
3. fluorocarbon coating according to claim 1, which is characterized in that the coalescing agent be selected from dipropylene class at At least one of film auxiliary agent and 2,2,4- trimethyl -1,3- pentanediol mono isobutyrate class coalescing agent.
4. fluorocarbon coating according to claim 1, which is characterized in that the substrate wetting agents are polyether modified siloxane class Wetting agent.
5. fluorocarbon coating according to claim 1, which is characterized in that the curing agent is hydrophilic isocyanate solidification Agent.
6. fluorocarbon coating according to claim 1, which is characterized in that the defoaming agent be selected from silica-based defoaming agent, At least one of mineral oil defoaming agent, organic silicon defoaming agent and polymer-like antifoams;
And/or the emulsion thickener is selected from least one of alkali swollen thickener and polyurethanes thickener.
7. fluorocarbon coating according to claim 1, which is characterized in that the levelling agent is non-ionic levelling agent.
8. fluorocarbon coating according to claim 1, which is characterized in that first component further includes 5 in terms of mass fraction Part~15 parts of solvent, 0.01 part~1 part of water phase thickener, 0.1 part~1 part of dispersing agent, 0.01 part~1 part of pigments and fillers Wetting agent, 0.1 part~1 part of anti-settling agent, 0.1 part~1 part of corrosion inhibitor, 0.01 part~30 parts of colorant, 0.01 part ~25 parts of filler and 0.1 part~1.5 parts of at least one of pH adjusting agent.
9. fluorocarbon coating according to claim 8, which is characterized in that the solvent in deionized water and pure water extremely Few one kind.
10. fluorocarbon coating according to claim 8, which is characterized in that the water phase thickener is selected from cellulose ether and fibre Tie up at least one of plain ether derivant.
11. fluorocarbon coating according to claim 8, which is characterized in that the dispersing agent is polycarboxylic acids ammonium salt class dispersing agent.
12. fluorocarbon coating according to claim 8, which is characterized in that it is pungent that the pigments and fillers wetting agent is selected from polyoxyethylene Alkylbenzene phenolic ether, α-phenyl methyl-ω-[(1,1,3,3- tetramethyl butyl) phenoxy group]-poly- (oxygen -1,2- ethylidene) and ethoxy At least one of base class fatty alcohol.
13. fluorocarbon coating according to claim 8, which is characterized in that the anti-settling agent is selected from modified ureas anti-settling agent, urea At least one of modified polyurethanes anti-settling agent, polyamide wax amine salt anti-settling agent and polyamide wax sodium salt anti-settling agent.
14. fluorocarbon coating according to claim 8, which is characterized in that the corrosion inhibitor is selected from aminocarboxylates At least one of corrosion inhibitor, organic zinc complex class corrosion inhibitor and the anti-flash rusting agent of phosphate chelates.
15. fluorocarbon coating according to claim 8, which is characterized in that the colorant is in titanium dioxide and mill base It is at least one.
16. fluorocarbon coating according to claim 8, which is characterized in that the filler is in mica powder and barium sulfate It is at least one.
17. fluorocarbon coating according to claim 8, which is characterized in that the pH adjusting agent is selected from 2- amino -2- first Base -1- propyl alcohol, N, at least one of N- dimethylethanolamine and methyl silanol potassium.
18. fluorocarbon coating according to claim 1, which is characterized in that second component is contained in terms of mass percentage There is 0.01%~30% cosolvent.
19. fluorocarbon coating according to claim 18, which is characterized in that the cosolvent is polyurethane grade solvent.
20. a kind of preparation method of fluorocarbon coating, which comprises the steps of: the original of the fluorocarbon coating will be prepared Material mixing, obtains fluorocarbon coating, and the raw material for preparing the fluorocarbon coating includes the first component and the second component, first component It is helped in terms of mass fraction including 50 parts~80 parts of water-based fluorocarbon resin, 0.1 part~1 part of defoaming agent, 1 part~8 parts of film forming Agent, 0.1 part~1 part of substrate wetting agents, 0.1 part~1 part of levelling agent and 0.1 part~1.5 parts of emulsion thickener, described Two components in terms of mass percentage containing 70%~100% curing agent, the curing agent be isocyanate curing agent, it is described The molar ratio of the isocyanate group in hydroxyl and the curing agent in water-based fluorocarbon resin is 1:(1~1.8).
21. the preparation method of fluorocarbon coating according to claim 20, which is characterized in that described to prepare the fluorine carbon painting The step of raw material of material mixes, and obtains fluorocarbon coating include:
By the water-based fluorocarbon resin, the defoaming agent, the coalescing agent, the substrate wetting agents, the levelling agent and institute Emulsion thickener mixing is stated, first component is obtained;And
First component is mixed with second component, obtains fluorocarbon coating.
22. a kind of coating process, which comprises the steps of:
To form paint-based bottom on coated article;And
The described in any item fluorocarbon coatings of coating claim 1~19 on the surface at the paint-based bottom.
23. coating process according to claim 22, which is characterized in that described to form paint-based bottom on coated article Step includes: to obtain the paint-based bottom to form priming paint on coated article described;
Alternatively, it is described on coated article formed paint-based bottom the step of include: described to form priming paint on coated article, in institute It states and forms intermediate layer paint on the surface of priming paint, obtain the paint-based bottom.
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