CN109266077A - A kind of high-efficency anticorrosive paint system - Google Patents
A kind of high-efficency anticorrosive paint system Download PDFInfo
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- CN109266077A CN109266077A CN201810876402.6A CN201810876402A CN109266077A CN 109266077 A CN109266077 A CN 109266077A CN 201810876402 A CN201810876402 A CN 201810876402A CN 109266077 A CN109266077 A CN 109266077A
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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
- 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
- C09D5/10—Anti-corrosive paints containing metal dust
- C09D5/106—Anti-corrosive paints containing metal dust containing Zn
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4804—Two or more polyethers of different physical or chemical nature
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/50—Polyethers having heteroatoms other than oxygen
- C08G18/5003—Polyethers having heteroatoms other than oxygen having halogens
- C08G18/5015—Polyethers having heteroatoms other than oxygen having halogens having fluorine atoms
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/61—Polysiloxanes
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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
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
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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
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
- C09D175/08—Polyurethanes from polyethers
-
- 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
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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
- 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
- C09D7/63—Additives non-macromolecular organic
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- 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
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0893—Zinc
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- 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
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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- 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
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
-
- 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
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- 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
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Abstract
The present invention discloses a kind of high-efficency anticorrosive paint system, comprising: the constituent of epoxy zinc rich primer are as follows: 45-75 parts of epoxy resin, 30-70 parts of zinc powder, 5-10 parts of nano zine oxide, 5-10 parts of nano silica, 5-10 parts of nano-titanium dioxide, 5-15 parts of emulsified asphalt, 5-10 parts of potassium methyl silicate, 10-20 parts of curing agent, 10-50 parts of solvent；The constituent of epoxy micaceous iron paint are as follows: 50-80 parts of epoxy resin, 38-56 parts of micaceous iron oxide gray, 5-12 parts of superfine talcum powder, 8-15 parts of titanium dioxide, 15-30 parts of curing agent, 20-30 parts of solvent；The constituent of polyurethane finish are as follows: 20-40 parts of diisocyanate, flame retardant type be polyether polyol 200-400 parts compound, 100-150 parts of fluorine-containing polyether glycol, 50-100 parts of dimethyl silicone polymer, 10-40 parts of alkyl phosphate salt, quinhydrones one or two (mono- ethoxy of β) 10-30 parts of ether, 5-20 parts of polyvinylpyrrolidone, 1-10 parts of silicon powder, 30-60 parts of pH buffer, 10-20 parts of catalyst, 1-10 parts of polyacrylic acid potassium salt dispersant, 20-40 parts of deionized water.Anticorrosive paint system of the invention has the advantages that antiseptic property is strong, long service life.
Description
Technical field
The present invention relates to a kind of high-efficency anticorrosive paint system, more particularly to one kind by aqueous priming paint, it is solvent-free it is middle apply, it is poly-
The high-efficency anticorrosive paint system of urethane finishing coat composition.
Background technique
The materials such as ship and ordinary steel are often corroded because of media such as seawater in use process, lead to ship and ordinary steel etc.
Damage of material is serious, influences its service life.Existing solution is mostly to apply corrosion-inhibiting coating on material structure surface, is utilized
Coating completely cuts off corrosive medium, plays the effect of protection materials.The anti-corrosion applied in chemical industry for making chlorine and alkali and polysilicon industry at present
Coating lacks standard and specification, and protective system can not play effective antisepsis for corrosive environment and medium, lead to anti-corrosion
Failure, causes maintenance cycle shorter, influences the service life using material.
Summary of the invention
The present invention provides a kind of high-efficency anticorrosive paint systems, at least to solve the anti-corrosive properties of coating system in the prior art
The problem that energy is weak, service life is short.
The present invention provides a kind of high-efficency anticorrosive paint system, including prime paint, intermediate layer paint, surface layer paint, the prime paints
For epoxy zinc-rich paint, the intermediate layer paint is epoxy micaceous iron paint, and the surface layer paint is polyurethane paint；
The constituent and mass fraction of the epoxy zinc rich primer match are as follows: 45-75 parts of epoxy resin, zinc powder 30-70
Part, 5-10 parts of nano zine oxide, 5-10 parts of nano silica, 5-10 parts of nano-titanium dioxide, 5-15 parts of emulsified asphalt, methyl
5-10 parts of potassium silicate, 10-20 parts of curing agent, 10-50 parts of solvent；
The constituent and mass fraction of the epoxy micaceous iron paint match are as follows: 50-80 parts of epoxy resin, micaceous iron oxide gray
38-56 parts, 5-12 parts of superfine talcum powder, 8-15 parts of titanium dioxide, 15-30 parts of curing agent, 20-30 parts of solvent；
The constituent and mass fraction of the polyurethane finish match are as follows: 20-40 parts of diisocyanate, flame retardant type are compound
200-400 parts of polyether polyol, 100-150 parts of fluorine-containing polyether glycol, 50-100 parts of dimethyl silicone polymer, alkyl phosphate
10-40 parts of salt, quinhydrones one or two (mono- ethoxy of β) 10-30 parts of ether, 5-20 parts of polyvinylpyrrolidone, 1-10 parts of silicon powder, pH are slow
30-60 parts of electuary, 10-20 parts of catalyst, 1-10 parts of polyacrylic acid potassium salt dispersant, 20-40 parts of deionized water.
Further, the compound polyether polyol of the flame retardant type is made of the raw material of following parts by weight: halogen epoxy compound
100-400 parts of object monomer, 1-10 parts of initiator, 5-20 parts of flame retardation catalyst；The monomer containing halogen epoxide is selected from 4,4,
The chloro- 1,2- epoxy butane of 4- tri-, 4,4,4, one of-three bromo- 1,2- epoxy butanes or epoxychloropropane or a variety of；The resistance
It fires catalyst and is selected from one of phosphorus oxychloride, antimony pentoxide, tetramethylol chloride or a variety of；The initiator is selected from third
One of glycol, glycerol, trimethylolpropane, xylitol are a variety of；The alkyl phosphate salt is selected from dodecylphosphoric acid
One of ester salt, hexadecanyl phosphate salt, octadecyl phosphate ester salt are a variety of；The diisocyanate is aromatic series two
Isocyanates；The catalyst is selected from triethanolamine, diethanol amine, triethylene diamine, diethylenetriamine, triethylene two
One of amine, stannous octoate or dibutyl tin dilaurate are a variety of.
Further, the curing agent of the epoxy zinc rich primer be selected from one of aliphatic diamine, aromatic polyamine or
It is a variety of；The catalyst of the polyurethane finish is selected from triethanolamine, diethanol amine, triethylene diamine, diethylenetriamine, Sanya
One of ethyldiamine, stannous octoate or dibutyl tin dilaurate are a variety of.
Further, the solvent is selected from one of butanone, butyl acetate, water, acetone or a variety of.
Further, the epoxy resin is selected from bisphenol F epoxy resin, hydrogenated bisphenol A epoxy resin, methylol bisphenol-A
One of modified propanepoxy resin of type epoxy resin, bromine is a variety of.
Further, aliphatic diisocyanate 20-40 parts by weight are also contained in the composition of the epoxy micaceous iron paint.
Further, the epoxy zinc rich primer the preparation method is as follows: extracting epoxy resin stirs in solvent, in room
Zinc powder, nano zine oxide, nano silica, nano-titanium dioxide, potassium methyl silicate, emulsification drip are sequentially added under the conditions of temperature
Curing agent is added in blueness, and shear agitation at room temperature, and reacts 2-6 hours at 30-70 DEG C, obtains epoxy zinc rich primer.
Further, the epoxy micaceous iron intermediate layer paint the preparation method is as follows: extracting epoxy resin in solvent, in room temperature
Under the conditions of micaceous iron oxide gray, superfine talcum powder, titanium dioxide and shear agitation is added, curing agent is added at room temperature, and
It is reacted 6-8 hours at 50-80 DEG C；Reaction system is cooled to 0 DEG C, aliphatic diisocyanate is added, and in 40-60 DEG C of condition
Lower stirring 1-2 hours, obtains epoxy micaceous iron intermediate layer paint.
Further, the polyurethane finish the preparation method is as follows:
Step 1: taking the compound polyether polyol of flame retardant type, belt stirrer is added in the mixed solution of fluorine-containing polyether glycol and true
In the closed reactor of sky pump, it is evacuated to 0.09-0.1MPa, stirring water removal 100-150 minutes, obtain under the conditions of 95-100 DEG C
To dehydrated polyhydric alcohol solution；
Step 2: catalyst being added in the dehydrated polyhydric alcohol solution of step 1, diisocyanate is added dropwise, is then added poly-
Dimethyl siloxane is warming up to 75-80 DEG C under nitrogen protection, insulation reaction 250-300 minutes, obtains base polyurethane prepolymer for use as；
Step 3: deionized water, alkyl phosphate salt, one or two (β of quinhydrones being added into the base polyurethane prepolymer for use as that step 2 obtains
One ethoxy) ether, polyvinylpyrrolidone, through high-speed stirred emulsification treatment 40-60 minutes, be made aqueous polyurethane emulsion；
Step 4: take silicon powder, polyacrylic acid potassium salt dispersant, pH buffer to be added in deionized water, at 30-45 DEG C and
PH be 6-8 under conditions of, high shear agitation processing after be added step poly- 3 in emulsifying polyurethane object, stir 65-80 minutes, i.e.,
Polyurethane finish can be obtained.
The invention also discloses the preparation methods of above-mentioned high-efficency anticorrosive paint system, comprise the following steps that
Step 1: in substrate surface epoxy zinc rich primer, forming a film at 20 DEG C, and crosslinking baking 12 is small in 120 DEG C of baking ovens
When, obtain the substrate of epoxy zinc rich primer coating；
Step 2: epoxy micaceous iron paint is applied to the epoxy zinc rich primer surface of step 1 gained substrate, is formed a film at 20 DEG C, and
Crosslinking baking 12 hours, obtain the substrate of epoxy micaceous iron paint coating in 120 DEG C of baking ovens；
Step 3: to the epoxy micaceous iron paint surface polyurethane coating finishing coat of step 2 gained substrate, and solidifying 12 at 50 DEG C
Hour, film forming obtains the substrate of high-efficency anticorrosive paint system coating.
The present invention compared with the existing technology, is successively formed using epoxy zinc-rich paint, epoxy micaceous iron paint, polyurethane paint compound
Protective system effectively improves substrate in chemical industry for making chlorine and alkali and the service life of polysilicon industry.In addition, epoxy zinc-rich of the invention
Paint, epoxy micaceous iron paint can form firm coating structure, and coating is made to combine closely with substrate surface, and polyurethane paint has preferably
Antiseptic fire-retardation performance, effectively ensure substrate using safe, extend the service life of anticorrosive paint system.
Specific embodiment
It in order to enable those skilled in the art to better understand the solution of the present invention, below will be to the skill in the embodiment of the present invention
Art scheme is clearly and completely described, it is clear that and the described embodiment is only a part of the embodiment of the present invention, without
It is whole embodiments.
The compound polyether polyol of flame retardant type used in 1-3 of the embodiment of the present invention and reference examples 1-2 the preparation method is as follows:
Step 1: taking 10 parts of propylene glycol in the closed reactor of belt stirrer and vacuum pump, be evacuated to 0.09-
0.1MPa, stirring water removal 200 minutes under the conditions of 60 DEG C, obtains dehydration propylene glycol；
Step 2: 20 parts of tetramethylol chloride being added in the dehydration propylene glycol of step 1, is heated up under nitrogen protection
To 80 DEG C, insulation reaction is cooled to 60 DEG C after 200 minutes；
Step 3: 4,4,4 ,-three 360 parts of bromo- 1,2- epoxy butanes being added dropwise in the reaction solution of step 2, in nitrogen protection
The compound polyether polyol of flame retardant type is made at 60 DEG C, isothermal reaction 360 minutes in lower holding reacting liquid temperature.
The epoxy zinc rich primer of 1-3 of the embodiment of the present invention and reference examples 1-2 the preparation method is as follows:
Extracting epoxy resin stirs in solvent, sequentially adds zinc powder, nano zine oxide, nanometer titanium dioxide at room temperature
Curing agent, and 30 DEG C are added in silicon, nano-titanium dioxide, potassium methyl silicate, emulsified asphalt, and shear agitation at room temperature
Lower reaction 6 hours, obtains epoxy zinc rich primer.
The epoxy micaceous iron intermediate layer paint of 1-3 of the embodiment of the present invention and reference examples 1-2 the preparation method is as follows:
The epoxy micaceous iron intermediate layer paint of embodiment 1-2 and reference examples 1 the preparation method is as follows:
Micaceous iron oxide gray, superfine talcum powder, titanium dioxide are added at room temperature and cuts in solvent for extracting epoxy resin
Stirring is cut, curing agent is added at room temperature, and is reacted 6-8 hours at 50 DEG C and obtains epoxy micaceous iron intermediate layer paint.
The epoxy micaceous iron intermediate layer paint of embodiment 3 and reference examples 2 the preparation method is as follows:
Micaceous iron oxide gray, superfine talcum powder, titanium dioxide are added at room temperature and cuts in solvent for extracting epoxy resin
Stirring is cut, curing agent is added at room temperature, and is reacted 6-8 hours at 50 DEG C, reaction system is cooled to 0 DEG C, rouge is added
Fat (cyclo) aliphatic diisocyanates, and stirred 2 hours under the conditions of 60 DEG C, obtain the epoxy micaceous iron intermediate layer paint of embodiment 3 and reference examples 2.
The polyurethane finish of 1-3 of the embodiment of the present invention and reference examples 1-2 the preparation method is as follows:
Step 1: taking the compound polyether polyol of flame retardant type, belt stirrer is added in the mixed solution of fluorine-containing polyether glycol and true
In the closed reactor of sky pump, it is evacuated to 0.09-0.1MPa, stirring water removal 100 minutes, are taken off under the conditions of 95-100 DEG C
Water-polyol solution；
Step 2: catalyst being added in the dehydrated polyhydric alcohol solution of step 1, diisocyanate is added dropwise, is then added poly-
Dimethyl siloxane is warming up to 75-80 DEG C under nitrogen protection, insulation reaction 250 minutes, obtains base polyurethane prepolymer for use as；
Step 3: deionized water, alkyl phosphate salt, one or two (β of quinhydrones being added into the base polyurethane prepolymer for use as that step 2 obtains
One ethoxy) ether, polyvinylpyrrolidone, through high-speed stirred emulsification treatment 60 minutes, be made aqueous polyurethane emulsion；
Step 4: taking silicon powder, polyacrylic acid potassium salt dispersant, pH buffer to be added in deionized water, be at 45 DEG C and pH
Under conditions of 6-8, the emulsifying polyurethane object in step poly- 3 is added after high shear agitation processing, stirs 80 minutes, can be obtained poly-
Urethane finishing coat.
Embodiment 1
The constituent and mass fraction of the epoxy zinc rich primer match are as follows: 45 parts of epoxy resin, zinc powder 30 part, nanometer
5 parts of zinc oxide, 5 parts of nano silica, 5 parts of nano-titanium dioxide, 5 parts of emulsified asphalt, 5 parts of potassium methyl silicate, curing agent 10
Part, 10 parts of butanone；Wherein, epoxy resin is bisphenol F epoxy resin, and the pH of emulsified asphalt is 10-12, solid content 20-40%, Gu
Agent is ethylenediamine.
The constituent and mass fraction of the epoxy micaceous iron paint match are as follows: 50 parts of epoxy resin, micaceous iron oxide gray 38
Part, 5 parts of superfine talcum powder, 8 parts of titanium dioxide, 15 parts of curing agent, 20 parts of butanone；Wherein, epoxy resin is bisphenol F epoxy resin,
Curing agent is ethylenediamine.
The constituent and mass fraction of the polyurethane finish match are as follows: 20 parts of diisocyanate, flame retardant type are compound poly-
200 parts of ethoxylated polyhydric alcohol, 100 parts of fluorine-containing polyether glycol, 50 parts of dimethyl silicone polymer, 10 parts of alkyl phosphate salt, quinhydrones one
Two (mono- ethoxy of β) 10 parts of ethers, 5 parts of polyvinylpyrrolidone, 1 part of silicon powder, 30 parts of pH buffer, 10 parts of catalyst, poly- third
1 part of olefin(e) acid potassium salt dispersant, 20 parts of deionized water.Wherein diisocyanate is methyl diphenylene diisocyanate, alkyl phosphoric acid
Ester salt is 1-isobutyl-3,5-dimethylhexylphosphoric acid salt, and pH buffer is sodium bicarbonate, and catalyst is triethanolamine.
Embodiment 2
The constituent and mass fraction of the epoxy zinc rich primer match are as follows: 75 parts of epoxy resin, zinc powder 70 part, nanometer
10 parts of zinc oxide, 10 parts of nano silica, 10 parts of nano-titanium dioxide, 15 parts of emulsified asphalt, 10 parts of potassium methyl silicate, solidification
20 parts of agent, 50 parts of solvent；Wherein, epoxy resin is hydrogenated bisphenol A epoxy resin, and the pH of emulsified asphalt is 10-12, solid content
20-40%, curing agent are ethylenediamine.
The constituent and mass fraction of the epoxy micaceous iron paint match are as follows: 80 parts of epoxy resin, micaceous iron oxide gray 56
Part, 12 parts of superfine talcum powder, 15 parts of titanium dioxide, 30 parts of curing agent, 30 parts of solvent；Wherein, epoxy resin is hydrogenated bisphenol A epoxy
Resin, curing agent are ethylenediamine.
The constituent and mass fraction of the polyurethane finish match are as follows: 40 parts of diisocyanate, flame retardant type are compound poly-
400 parts of ethoxylated polyhydric alcohol, 150 parts of fluorine-containing polyether glycol, 100 parts of dimethyl silicone polymer, 40 parts of alkyl phosphate salt, quinhydrones one
Two (mono- ethoxy of β) 30 parts of ethers, 10 parts of silicon powder, 60 parts of pH buffer, 20 parts of catalyst, gather 20 parts of polyvinylpyrrolidone
10 parts of potassium acrylate dipersant, 40 parts of deionized water.Wherein diisocyanate is toluene di-isocyanate(TDI), alkyl phosphate salt
For hexadecanyl phosphate salt, pH buffer is sodium bicarbonate, and catalyst is diethanol amine.
Embodiment 3
The constituent and mass fraction of the epoxy zinc rich primer match are as follows: 45 parts of epoxy resin, zinc powder 30 part, nanometer
5 parts of zinc oxide, 5 parts of nano silica, 5 parts of nano-titanium dioxide, 5 parts of emulsified asphalt, 5 parts of potassium methyl silicate, curing agent 10
Part, 10 parts of butanone；Wherein, epoxy resin is bisphenol F epoxy resin, and the pH of emulsified asphalt is 10-12, solid content 20-40%, Gu
Agent is ethylenediamine.
The constituent and mass fraction of the epoxy micaceous iron paint match are as follows: 50 parts of epoxy resin, micaceous iron oxide gray 38
Part, 5 parts of superfine talcum powder, 8 parts of titanium dioxide, 15 parts of curing agent, 20 parts of butanone, 20 parts of isophorone diisocyanate；Wherein, ring
Oxygen resin is bisphenol F epoxy resin, and curing agent is ethylenediamine.
The constituent and mass fraction of the polyurethane finish match are as follows: 20 parts of diisocyanate, flame retardant type are compound poly-
200 parts of ethoxylated polyhydric alcohol, 100 parts of fluorine-containing polyether glycol, 50 parts of dimethyl silicone polymer, 10 parts of alkyl phosphate salt, quinhydrones one
Two (mono- ethoxy of β) 10 parts of ethers, 5 parts of polyvinylpyrrolidone, 1 part of silicon powder, 30 parts of pH buffer, 10 parts of catalyst, poly- third
1 part of olefin(e) acid potassium salt dispersant, 20 parts of deionized water.Wherein diisocyanate is methyl diphenylene diisocyanate, alkyl phosphoric acid
Ester salt is 1-isobutyl-3,5-dimethylhexylphosphoric acid salt, and pH buffer is sodium bicarbonate, and catalyst is triethanolamine.
Reference examples 1
The constituent and mass fraction of the epoxy zinc rich primer match are as follows: 45-75 parts of epoxy resin, zinc powder 30-70
Part, 5-10 parts of nano zine oxide, 5-10 parts of nano silica, 5-10 parts of nano-titanium dioxide, 5-15 parts of emulsified asphalt, methyl
5-10 parts of potassium silicate, 10-20 parts of curing agent, 10-50 parts of solvent；Wherein, epoxy resin is bisphenol F epoxy resin, emulsified asphalt
PH be 10-12, solid content 20-40%, curing agent is ethylenediamine.
The constituent and mass fraction of the polyurethane finish match are as follows: 20-40 parts of diisocyanate, flame retardant type are compound
200-400 parts of polyether polyol, 100-150 parts of fluorine-containing polyether glycol, 50-100 parts of dimethyl silicone polymer, alkyl phosphate
10-40 parts of salt, quinhydrones one or two (mono- ethoxy of β) 10-30 parts of ether, 5-20 parts of polyvinylpyrrolidone, 1-10 parts of silicon powder, pH are slow
30-60 parts of electuary, 10-20 parts of catalyst, 1-10 parts of polyacrylic acid potassium salt dispersant, 20-40 parts of deionized water.Wherein, epoxy
Resin is bisphenol F epoxy resin, and curing agent is ethylenediamine.Wherein diisocyanate is methyl diphenylene diisocyanate, alkyl
Phosphate ester salt is 1-isobutyl-3,5-dimethylhexylphosphoric acid salt, and pH buffer is sodium bicarbonate, and catalyst is triethanolamine.
Reference examples 2
The constituent and mass fraction of the epoxy micaceous iron paint match are as follows: 50-80 parts of epoxy resin, micaceous iron oxide gray
38-56 parts, 5-12 parts of superfine talcum powder, 8-15 parts of titanium dioxide, 15-30 parts of curing agent, 20-30 parts of solvent；Wherein, epoxy resin
For bisphenol F epoxy resin, curing agent is ethylenediamine.
The constituent and mass fraction of the polyurethane finish match are as follows: 20-40 parts of diisocyanate, flame retardant type are compound
200-400 parts of polyether polyol, 100-150 parts of fluorine-containing polyether glycol, 50-100 parts of dimethyl silicone polymer, alkyl phosphate
10-40 parts of salt, quinhydrones one or two (mono- ethoxy of β) 10-30 parts of ether, 5-20 parts of polyvinylpyrrolidone, 1-10 parts of silicon powder, pH are slow
30-60 parts of electuary, 10-20 parts of catalyst, 1-10 parts of polyacrylic acid potassium salt dispersant, 20-40 parts of deionized water.Wherein two isocyanide
Acid esters is methyl diphenylene diisocyanate, and alkyl phosphate salt is 1-isobutyl-3,5-dimethylhexylphosphoric acid salt, and pH buffer is sodium bicarbonate,
Catalyst is triethanolamine.
1-3 anticorrosive paint system of the embodiment of the present invention the preparation method is as follows:
Step 1: in substrate surface epoxy zinc rich primer, forming a film at 20 DEG C, and crosslinking baking 12 is small in 120 DEG C of baking ovens
When, obtain the substrate of epoxy zinc rich primer coating；
Step 2: epoxy micaceous iron paint is applied to the epoxy zinc rich primer surface of step 1 gained substrate, is formed a film at 20 DEG C, and
Crosslinking baking 12 hours, obtain the substrate of epoxy micaceous iron paint coating in 120 DEG C of baking ovens；
Step 3: to the epoxy micaceous iron paint surface polyurethane coating finishing coat of step 2 gained substrate, and solidifying 12 at 50 DEG C
Hour, film forming obtains the substrate of high-efficency anticorrosive paint system coating.
1 anticorrosive paint system of reference examples of the present invention the preparation method is as follows:
Step 1: in substrate surface epoxy zinc rich primer, forming a film at 20 DEG C, and crosslinking baking 12 is small in 120 DEG C of baking ovens
When, obtain the substrate of epoxy zinc rich primer coating；
Step 2: to the epoxy zinc rich primer surface polyurethane coating finishing coat of step 1 gained substrate, and solidifying at 50 DEG C
12 hours, film forming obtained the substrate of 1 coating system of reference examples coating of the present invention.
2 anticorrosive paint system of reference examples of the present invention the preparation method is as follows:
Step 1: applying epoxy micaceous iron paint in substrate surface, form a film at 20 DEG C, and the crosslinking baking 12 in 120 DEG C of baking ovens
Hour, obtain the substrate of epoxy micaceous iron paint coating；
Step 2: to the epoxy micaceous iron paint surface polyurethane coating finishing coat of step 1 gained substrate, and solidifying 12 at 50 DEG C
Hour, film forming obtains the substrate of 2 coating system of reference examples coating of the present invention.
The anticorrosive paint system performance of above-described embodiment 1-3 and reference examples 1-2 preparation is compared as follows shown in table:
1-3 of the embodiment of the present invention successively uses epoxy zinc-rich paint, epoxy micaceous iron paint, polyurethane paint relative to reference examples 1-2
Composite anti-corrosion system is formed, there is preferable acid resistance, effectively improve substrate makes in chemical industry for making chlorine and alkali and polysilicon industry
Use the service life.Meanwhile epoxy zinc-rich paint, the epoxy micaceous iron paint of 1-3 of the embodiment of the present invention can form firm coating structure, make coating
Combine closely with substrate surface, and polyurethane paint has preferable antiseptic fire-retardation performance, effectively ensure substrate using safe, prolong
The service life of long anticorrosive paint system.In addition, containing excessive isophorone diisocyanate in embodiment 3 in epoxy micaceous iron paint
Ester utilizes the isophorone diisocyanate epoxy resin with the epoxy resin hydroxyl of epoxy zinc-rich paint and epoxy micaceous iron paint respectively
Hydroxyl forms stable amido bond, connect epoxy zinc-rich paint layer closely with epoxy micaceous iron paint layer, and different in epoxy micaceous iron paint
Active hydrogen reaction in isophorone diisocyanate and polyurethane finish, forms stable amido bond, makes polyurethane finish and ring
Oxygen cloud iron paint layer closely connects, and then ensures that epoxy zinc-rich paint, epoxy micaceous iron paint, polyurethane paint form stable composite anti-corrosive body
System effectively avoids falling off for lacquer painting, improves the service life of anticorrosive paint system.
Finally it should be noted that the above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof, to the greatest extent
Invention is explained in detail referring to above-described embodiment for pipe, it should be understood by a person of ordinary skill in the art that technology
Personnel read present specification after still can with modifications or equivalent substitutions are made to specific embodiments of the invention, but this
A little modifications are changed within all without departing from the present patent application accompanying claims protection scope.
Claims (10)
1. a kind of high-efficency anticorrosive paint system, which is characterized in that the high-efficency anticorrosive paint system include prime paint, intermediate layer paint,
Surface layer paint, the prime paint are epoxy zinc-rich paint, and the intermediate layer paint is epoxy micaceous iron paint, and the surface layer paint is polyurethane paint；
The constituent and mass fraction of the epoxy zinc rich primer match are as follows: 45-75 parts of epoxy resin, is received 30-70 parts of zinc powder
Rice 5-10 parts of zinc oxide, 5-10 parts of nano silica, 5-10 parts of nano-titanium dioxide, 5-15 parts of emulsified asphalt, methane-siliconic acid
5-10 parts of potassium, 10-20 parts of curing agent, 10-50 parts of solvent；
The constituent and mass fraction of the epoxy micaceous iron paint match are as follows: 50-80 parts of epoxy resin, micaceous iron oxide gray 38-
56 parts, 5-12 parts of superfine talcum powder, 8-15 parts of titanium dioxide, 15-30 parts of curing agent, 20-30 parts of solvent；
The constituent and mass fraction of the polyurethane finish match are as follows: 20-40 parts of diisocyanate, the compound polyethers of flame retardant type
200-400 parts of polyalcohol, 100-150 parts of fluorine-containing polyether glycol, 50-100 parts of dimethyl silicone polymer, alkyl phosphate salt
10-40 parts, quinhydrones one or two (mono- ethoxy of β) 10-30 parts of ether, 5-20 parts of polyvinylpyrrolidone, 1-10 parts of silicon powder, pH buffering
30-60 parts of agent, 10-20 parts of catalyst, 1-10 parts of polyacrylic acid potassium salt dispersant, 20-40 parts of deionized water.
2. high-efficency anticorrosive paint system according to claim 1, which is characterized in that the compound polyether polyol of flame retardant type
It is made of the raw material of following parts by weight: 100-400 parts of monomer containing halogen epoxide, 1-10 parts of initiator, flame retardation catalyst 5-
20 parts；The monomer containing halogen epoxide is selected from the chloro- 1,2- epoxy butane of 4,4,4- tri-, 4,4,4 ,-three bromo- 1,2- epoxy fourths
One of alkane or epoxychloropropane are a variety of；The flame retardation catalyst is selected from phosphorus oxychloride, antimony pentoxide, tetra methylol chlorine
Change one of phosphorus or a variety of；The initiator is selected from one of propylene glycol, glycerol, trimethylolpropane, xylitol or more
Kind；The alkyl phosphate salt is in 1-isobutyl-3,5-dimethylhexylphosphoric acid salt, hexadecanyl phosphate salt, octadecyl phosphate ester salt
It is one or more；The diisocyanate is aromatic diisocyanate；The catalyst be selected from triethanolamine, diethanol amine,
One of triethylene diamine, diethylenetriamine, triethylenediamine, stannous octoate or dibutyl tin dilaurate are more
Kind.
3. high-efficency anticorrosive paint system according to claim 1, which is characterized in that the curing agent of the epoxy zinc rich primer
Selected from one of aliphatic diamine, aromatic polyamine or a variety of；The catalyst of the polyurethane finish is selected from triethanolamine, two
One in ethanol amine, triethylene diamine, diethylenetriamine, triethylenediamine, stannous octoate or dibutyl tin dilaurate
Kind is a variety of.
4. high-efficency anticorrosive paint system according to claim 1, which is characterized in that the solvent is selected from butanone, acetic acid fourth
One of ester, water, acetone are a variety of.
5. high-efficency anticorrosive paint system according to claim 1, which is characterized in that the epoxy resin is selected from Bisphenol F ring
One in the modified propanepoxy resin of oxygen resin, hydrogenated bisphenol A epoxy resin, methylol bisphenol A type epoxy resin, bromine
Kind is a variety of.
6. high-efficency anticorrosive paint system according to claim 1, which is characterized in that the composition of the epoxy micaceous iron paint
In also contain aliphatic diisocyanate 20-40 parts by weight.
7. high-efficency anticorrosive paint system according to claim 5, which is characterized in that the preparation side of the epoxy zinc rich primer
Method is as follows: extracting epoxy resin stirs in solvent, sequentially adds zinc powder, nano zine oxide, nanometer titanium dioxide at room temperature
Curing agent, and 30-70 is added in silicon, nano-titanium dioxide, potassium methyl silicate, emulsified asphalt, and shear agitation at room temperature
It is reacted 2-6 hours at DEG C, obtains epoxy zinc rich primer.
8. high-efficency anticorrosive paint system according to claim 6, which is characterized in that the preparation of the epoxy micaceous iron intermediate layer paint
Method is as follows: micaceous iron oxide gray, superfine talcum powder, titanium dioxide is added simultaneously at room temperature in solvent in extracting epoxy resin
Curing agent is added in shear agitation at room temperature, and reacts 6-8 hours at 50-80 DEG C；Reaction system is cooled to 0 DEG C, is added
Enter aliphatic diisocyanate, and stirred 1-2 hours under the conditions of 40-60 DEG C, obtains epoxy micaceous iron intermediate layer paint.
9. high-efficency anticorrosive paint system according to claim 1, which is characterized in that the preparation method of the polyurethane finish
It is as follows:
Step 1: taking the mixed solution of the compound polyether polyol of flame retardant type, fluorine-containing polyether glycol that belt stirrer and vacuum pump is added
Closed reactor in, be evacuated to 0.09-0.1MPa, under the conditions of 95-100 DEG C stirring water removal 100-150 minutes, taken off
Water-polyol solution；
Step 2: catalyst being added in the dehydrated polyhydric alcohol solution of step 1, diisocyanate is added dropwise, poly- diformazan is then added
Radical siloxane is warming up to 75-80 DEG C under nitrogen protection, insulation reaction 250-300 minutes, obtains base polyurethane prepolymer for use as；
Step 3: deionized water, alkyl phosphate salt, (mono- hydroxyl of β of quinhydrones one or two being added into the base polyurethane prepolymer for use as that step 2 obtains
Ethyl) ether, polyvinylpyrrolidone, through high-speed stirred emulsification treatment 40-60 minutes, be made aqueous polyurethane emulsion；
Step 4: taking silicon powder, polyacrylic acid potassium salt dispersant, pH buffer to be added in deionized water, be at 30-45 DEG C and pH
Under conditions of 6-8, the emulsifying polyurethane object in step poly- 3 is added after high shear agitation processing, stirs 65-80 minutes, can obtain
To polyurethane finish.
10. a kind of preparation method of the high-efficency anticorrosive paint system as described in claim 1-9, which is characterized in that such as including step
Under:
Step 1: it in substrate surface epoxy zinc rich primer, forms a film at 20 DEG C, and crosslinking baking 12 hours in 120 DEG C of baking ovens,
Obtain the substrate of epoxy zinc rich primer coating；
Step 2: epoxy micaceous iron paint is applied to the epoxy zinc rich primer surface of step 1 gained substrate, is formed a film at 20 DEG C, and
Crosslinking baking 12 hours, obtain the substrate of epoxy micaceous iron paint coating in 120 DEG C of baking ovens；
Step 3: solidify 12 hours to the epoxy micaceous iron paint surface polyurethane coating finishing coat of step 2 gained substrate, and at 50 DEG C,
Film forming obtains the substrate of high-efficency anticorrosive paint system coating.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111334176A (en) * | 2020-03-09 | 2020-06-26 | 沪宝新材料科技（上海）股份有限公司 | Solvent-free double-component finish paint for plastic track |
| WO2020186721A1 (en) * | 2019-03-21 | 2020-09-24 | 江苏海事职业技术学院 | Corrosion-resistant nanometer modified composite coating for use in ship |
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