CN110105863A - A kind of heat-resisting priming paint and preparation method thereof - Google Patents

A kind of heat-resisting priming paint and preparation method thereof Download PDF

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Publication number
CN110105863A
CN110105863A CN201910382727.3A CN201910382727A CN110105863A CN 110105863 A CN110105863 A CN 110105863A CN 201910382727 A CN201910382727 A CN 201910382727A CN 110105863 A CN110105863 A CN 110105863A
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heat
component
priming paint
phosphate
ppg
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CN110105863B (en
Inventor
李志士
王华进
张立国
姜清淮
王明强
赵薇
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Marine Chemical Research Institute Co Ltd
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Marine Chemical Research Institute Co Ltd
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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
    • C08G18/4009—Two or more macromolecular compounds not provided for in one single group of groups C08G18/42 - C08G18/64
    • C08G18/4063—Mixtures of compounds of group C08G18/62 with other macromolecular compounds
    • 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
    • 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
    • C08G18/58—Epoxy resins
    • 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
    • C08G18/62—Polymers of compounds having carbon-to-carbon double bonds
    • C08G18/6216—Polymers of alpha-beta ethylenically unsaturated carboxylic acids or of derivatives thereof
    • C08G18/622—Polymers of esters of alpha-beta ethylenically unsaturated carboxylic acids
    • C08G18/6225—Polymers of esters of acrylic or methacrylic acid
    • C08G18/6229—Polymers of hydroxy groups containing esters of acrylic or methacrylic acid with aliphatic polyalcohols
    • 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
    • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72—Polyisocyanates or polyisothiocyanates
    • C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
    • C08G18/75—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic
    • C08G18/751—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring
    • C08G18/752—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group
    • C08G18/753—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group containing one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group having a primary carbon atom next to the isocyanate or isothiocyanate group
    • C08G18/755—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group containing one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group having a primary carbon atom next to the isocyanate or isothiocyanate group and at least one isocyanate or isothiocyanate group linked to a secondary carbon atom of the cycloaliphatic ring, e.g. isophorone diisocyanate
    • 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
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/18—Fireproof paints including high temperature resistant paints
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/61—Additives non-macromolecular inorganic
    • C—CHEMISTRY; METALLURGY
    • 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
    • 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
    • C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
    • 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
    • C08K2003/0812—Aluminium
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/02—Elements
    • C08K3/08—Metals
    • C08K2003/0893—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
    • 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
    • C08K2003/2217—Oxides; Hydroxides of metals of magnesium
    • C08K2003/2224—Magnesium hydroxide
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    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2227—Oxides; Hydroxides of metals of aluminium
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    • 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
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    • C08K3/00—Use of inorganic substances as compounding ingredients
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    • C08K2003/321—Phosphates
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    • C08K3/00—Use of inorganic substances as compounding ingredients
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Abstract

The invention discloses a kind of heat-resisting priming paint and preparation method thereof, heat-resisting priming paint includes following component: component A (weight percent): bisphenol A type epoxy resin 15~30；Hydroxyl acrylic resin 0~10；Inorganic filler 20~50；Rust resisting pigment 2~5；Non-floating type aluminium powder 2~5；Fire retardant 5~15；Dispersing agent 0.5~2；Defoaming agent 0.1~0.5；Levelling agent 0.1~0.5；Mixed organic solvents 20~40；B component (weight percent): modified isocyanate 100；The weight ratio of the component A and the B component is 2.5~4:1.The heat-resisting priming paint of the present invention can be long-term used under 200 DEG C of hot environments, and normal temperature cure, flexibility is good, had certain anti-flammability, be resistant to all kinds of solvent naphthas, organic solvent.

Description

A kind of heat-resisting priming paint and preparation method thereof
Technical field
The invention belongs to paint fields, and in particular to a kind of heat-resisting priming paint and preparation method thereof.
Background technique
Heat-resisting paint broadly refers to that the coating at a high temperature of 100 DEG C or more can be long-term used in, and coating is constant Color, coating performance do not fail.Heat-resisting paint extensive application in daily life, for example, industrially can be used for petrochemical industry Pipeline road, hot operation the key areas such as electric machine casing, piggyback pod, the outer surface of high-temperature furnace body, aerospace；In the people In, it can be used for the heating device etc. of electrical apparatus insulation, household electrical appliance.
Currently, heat-resisting paint, mainly based on silicone resin system or organic-silicon-modified resin system, organic silicon applies The heat resistance of material is preferable, but usually requires hot setting, will increase the difficulty of construction, while organosilicon systems hardness is high, flexible Property is poor.
Accordingly, it is desirable to provide a kind of new heat-resisting priming paint and preparation method thereof is to solve the above problems.
Summary of the invention
The purpose of the present invention is to provide a kind of normal temperature cures, and flexibility is good, the excellent heat-resisting bottom of anti-flammability, tolerance Paint.
Another object of the present invention is to provide a kind of preparation methods of above-mentioned heat-resisting priming paint.
A kind of heat-resisting priming paint of the present invention is bi-component fireproof coating, is made of component A and B component that formula is such as Under:
B component content wt%
Modified isocyanate 100
A, the ratio of B component is 2.5:1~4:1.
Film forming matter will affect coating physicochemical properties such as adhesive force, flexibility, resistance to medium, heat resistance on substrate.This hair It is bright when selecting film forming matter, it is contemplated that resin should meet resistant of high or low temperature, flexibility, low viscosity, the degree of cross linking appropriate, have it is good Good cohesive force etc. requires.Film forming matter of the invention selects system (the bisphenol-A type ring in component A of polyurethane modified epoxy resin The mixed system of oxygen resin and/or hydroxyl acrylic resin and B component).Bisphenol type epoxy tree is used in preferred component A Rouge (epoxide number 0.12~0.56) and hydroxyl acrylic resin are used in mixed way.Bisphenol A type epoxy resin is with epoxy group and hydroxyl It for end group, can be reacted with NCO, form cross-linked network, increase polymer molecular weight, when B component selects polyalcohol, adjustable film forming The flexibility and intensity of object, meet the actual needs.
The inorganic filler is talcum powder, mica powder, blanc fixe, coarse whiting, rutile type titanium white, gas phase dioxy One or more in SiClx, clay.The dosage and proportion of inorganic filler are calculated according to critical size concentration (CPVC), up and down not More than 10%.Inorganic filler oil absorption with higher, can play the role of thickener.
The rust resisting pigment is one or more of phosphoric acid salt, zinc powder, and phosphoric acid salt rust resisting pigment includes but not Be limited to: trbasic zinc phosphate, molybdenum phosphate zinc, aluminium triphosphate can increase the anti-corrosive properties of coating.
The non-floating type aluminium powder is stirred after grinding distribution and is added in the preparation process of coating, and non-floating type aluminium powder can increase The thermal diffusivity for adding coating reduces in influence of the hot conditions to coating, and then improves the heat resistance of coating；Meanwhile according to anti-corrosion Coating electrochemical mechanism, non-floating type aluminium powder can also increase the anti-corrosive properties of priming paint.
The decomposable heat absorption of fire retardant generates non-flammable compressive gas, and decomposition generates free radicals or other fire retardant mechanisms.Use fire retardant The burning of coating itself can be reduced, the fire resistant coating corresponding time is reduced, assists reacting at carbon for fire resistant coating.The fire retardant May include organic fire-retardant and/or inorganic fire retardants, the ratio of organic fire-retardant dosage and bisphenol A type epoxy resin be 2:1~ 0.05:1, the dosage of inorganic fire retardants and the ratio of bisphenol A type epoxy resin are 0.5:1~0.02:1.The organic fire-resisting Agent includes: one or more of phosphate and its derivative, phosphonate ester, phosphite ester.Phosphate flame retardant includes: tricresyl phosphate Toluene ester, triphenyl phosphate, trimethylolpropane trimethacrylate, triisopropyl phenyl phosphate, triethyl phosphate, tricresyl phosphate fourth Ester, trioctyl phosphate, isopropylated triphenyl phosphates, triphenyl phosphite, phosphate toluene diphenyl ester, tricresyl phosphate butoxy second Ester, 1-phenyl-3-methyl-5-pyrazolone (PMP), cresyl diphenyl phosphate, resorcinol-bis- (diphenyl phosphates), the bis- (phosphorus of bisphenol-A- Diphenyl phthalate), one or more of resorcinol-bis- [two (2,6-3,5-dimethylphenyl) phosphates].Phosphonate ester includes: N- Phosphonate ester, N, N- p-phenylenediamine base (2- hydroxyl) dibenzyl phosphonic acids tetra-ethyl ester, first in methylol Propionamides methyl phosphonate, ring One or more of base dimethyl phosphonate.The inorganic fire retardants includes: aluminium hydroxide, magnesium hydroxide, aluminium oxide, three oxygen Change two antimony, antimony pentoxide, titanium dioxide, zinc oxide, molybdenum oxide, molybdenum trioxide, ammonium molybdate, ammonium dimolybdate, ammonium tetramolybdate, eight One or more of ammonium molybdate, zinc molybdate, tin oxide, cuprous oxide, expansible graphite.Both aluminium hydroxide, magnesium hydroxide It is packing type fire retardant, Halogen, nontoxic, suppression cigarette are absorbed heat by decomposing, generate vapor, play fire-retardant effect with diluting effect Energy.The method that the present invention uses a variety of fire retardants compounding, to play cooperative flame retardant effect.It is preferred that phosphate, aluminium hydroxide, hydrogen-oxygen Change magnesium is fire retardant.
The dispersing agent is the BYK-AT203, BYK-AT204, BYK-9076, BYK-9077, BYK- of Bi Ke chemistry P104S, BYK-ATU, BYK-103, BYK-110, BYK-142, BYK-161, BYK-162, BYK-163, BYK-164, BYK- One or more of 170, BYK-180, BYK-182,.
The defoaming agent is the BYK-051, BYK-052, BYK-053, BYK-054, BYK-055, BYK- of Bi Ke chemistry 057, BYK-060, BYK-065, BYK-066N, BYK-067A, BYK-070, BYK-071, BYK-072, BYK-077, BYK- 085, BYK-088, BYK-A525, BYK-A530, BYK-A535, BYK-A550, BYK-A555, BYK-A560, BYK-1752, One or more of BYK-1790,.
Described levelling agent is Bi Ke chemistry, BYK-300, BYK-301, BYK-306, BYK-307, BYK-310, BYK- 320, BYK-323, BYK-322, BYK-331, BYK-333, BYK-354, BYK-358N, BYK-361N, BYK-370, BYK- One or more of 371, BYK-378, BYK-388,.
The mixed organic solvents are the mixed solution of dimethylbenzene, butyl acetate, PMA (propylene glycol methyl ether acetate), Dimethylbenzene, butyl acetate, PMA weight ratio be 5:3:2 or 1:1:1.
The synthetic method of the modified isocyanate is as follows, and IPDI (isophorone diisocyanate is added in a kettle Ester), 50 DEG C are warming up to, N2Protection is stirred the lower solution that polyalcohol is added dropwise, is added dropwise in 0.5~1h, maintain the temperature at 80~ After reacting 2~3h at 90 DEG C, NCO content is measured, discharging is cooled to room temperature, addition butyl acetate, adjustment solid content to 70~ 80wt% obtains priming paint modified isocyanate.
Above-mentioned polyalcohol includes one or more of two degrees of functionality, the polyether polyol of three-functionality-degree, polyester polyol, Wherein polyether polyol include but is not limited to PPG-200, PPG-400, PPG-600, PPG-1000, PPG-1500, PPG-2000, One or more of PPG-3000, PPG-4000, PPG-6000, PPG-8000.Polyester polyol includes ethylene glycol, the third two It is alcohol, diethylene glycol, diglycol, trimethylolpropane, 1,4-butanediol, adipic acid, decanedioic acid, 1,6- hexylene glycol, new Pentanediol, 3- methyl-1, one or more of 5 pentanediols, dodecanedioic acid, isophathalic acid, azelaic acid, polycaprolactone.It is excellent The mixed liquor of 2~3 kinds of polyalcohols is selected, preferred polyol proportion is 1:(1~4) or 1:(1~4): (1~2).
The NCO content (mass fraction) of above-mentioned Isocyanate prepolymers body is between 8%~15%.
The preparation method of heat-resisting priming paint of the invention the following steps are included:
1, mixed organic solvents are prepared: being by weight 5:3:2 by dimethylbenzene, butyl acetate, propylene glycol methyl ether acetate Or 1:1:1 is mixed；
2, component A is prepared: by the bisphenol A type epoxy resin in component A, in the case where revolving speed is the stirring of 600~700r/min It is added into mixed organic solvents, after resin is completely dispersed, the whole components in addition to non-floating type aluminium powder, auxiliary agent is added, make With basket type sand mill, it is 600~700r/min's in revolving speed that revolving speed, which is to be ground to fineness≤45 μm under 1900~2000r/min, Auxiliary agent, the filtering of 80 mesh filter screens is added in stirring, and 200~300r/min is added with stirring the non-floating type aluminium powder after grinding distribution, disperses After uniformly, component A is obtained；
3, it prepares B component: IPDI being added in a kettle, is warming up to 50 DEG C, N2It is molten to stir lower dropwise addition polyalcohol for protection Liquid is added dropwise in 0.5~1h, maintains the temperature at 80~90 DEG C after reacting 2~3h, measures NCO content, and discharging is cooled to room Butyl acetate is added in temperature, adjusts solid content to 70~80wt%, obtains B component；
By the A in heat-resisting priming paint of the invention, B component, 2.5~4:1 is mixed in proportion before construction, later can be with It is constructed using the method for spraying, brushing, roller coating.
Heat-resisting priming paint of the invention uses Polyurethane Modified Epoxy Resins, can be long-term used in 200 DEG C of hot environments Under, normal temperature cure, flexibility is good, has certain anti-flammability, is resistant to all kinds of solvent naphthas, organic solvent, meets industrial high temperature The requirement of use environment can also be matched with functional paints such as fireproof coating, fire-proof and thermal-insulation coatings, increase expansion carbon-coating with The attachment of substrate guarantees the fire protecting performance of fireproof coating.
The preparation method of heat-resisting priming paint of the invention is easy, easy to operate.
Specific embodiment
Following embodiment is used to further illustrate the present invention.
Embodiment 1
Specific preparation step:
1, mixed organic solvents are prepared: being by weight 5:3:2 by dimethylbenzene, butyl acetate, propylene glycol methyl ether acetate It is mixed；
2, prepare component A: by the 30g bisphenol A type epoxy resin (epoxide number 0.51) in component A, revolving speed be 600~ 700r/min's is added with stirring into mixed organic solvents, and after resin is completely dispersed, 10g mica powder, 10g precipitated sulfur is added Sour barium, 5g rutile type titanium white, 5g trbasic zinc phosphate, 2g magnesium hydroxide, 2g bisphenol-A-bis- (diphenyl phosphate), 2g tricresyl phosphate Diphenyl ester (whole components in addition to non-floating type aluminium powder, auxiliary agent) uses basket type sand mill, and revolving speed is 1900~2000r/min Under, be ground to fineness≤45 μm, revolving speed be 600~700r/min stirring be added 1.5gBYK-AT203,0.2gBYK-051, 0.3gBYK-310, the filtering of 80 mesh filter screens, 200~300r/min are added with stirring the non-floating type aluminium powder of 2g, after being uniformly dispersed, obtain A Component；
3, B component: being added IPDI in a kettle, after being warming up to 50 DEG C, N2Under protection, PPG-400 is added dropwise under stiring With the mixed solution of PPG-2000, the two ratio is 1:2, is added dropwise in 0.5h, maintains the temperature at 80~90 DEG C and react It after 2.5h, discharges and is cooled to room temperature after measurement NCO content, butyl acetate is added, adjust solid content to 75wt%, obtain B component.
A, two component of B is used in mixed way in the ratio of 3:1.
It is as follows to test paint film property.
Embodiment 2
1. preparing mixed organic solvents: being by weight 1:1:1 by dimethylbenzene, butyl acetate, propylene glycol methyl ether acetate It is mixed；
2. preparing component A: by the 15g bisphenol A type epoxy resin (epoxide number 0.44) and 5g hydroxy acrylate in component A Resin after resin is completely dispersed, is added in revolving speed being added with stirring into mixed organic solvents for 600~700r/min 3g rutile type titanium white, 12g fumed silica, 5g clay, 10g talcum powder, 5g aluminium triphosphate, 5g triphenyl phosphate, 2g aluminium hydroxide, 1g antimony oxide, using basket type sand mill, revolving speed is to be ground to fineness≤45 under 1900~2000r/min μm, 1.5gBYK-161,0.1gBYK-065,0.4gBYK-333, the filter of 80 mesh is added in the stirring that revolving speed is 600~700r/min Net filtration, 200~300r/min are added with stirring the non-floating type aluminium powder of 5g, after being uniformly dispersed, obtain component A；
3.B component: being added IPDI in a kettle, after being warming up to 50 DEG C, N2Under protection, PPG-200 is added dropwise under stiring With the mixed solution of PPG-1000, the two ratio is 1:4, is added dropwise in 1h, maintains the temperature at 80~90 DEG C and react 2.5h Afterwards, it discharges and is cooled to room temperature after measurement NCO content, butyl acetate, adjustment solid content to 70wt% is added.
A, two component of B is used in mixed way in the ratio of 2.5:1.
It is as follows to test paint film property.
Number Test item Test result
1 Flexibility 1mm
2 Impact resistance 100cm
3 Heat resistance 100h at 200 DEG C, coating not bulge are not fallen off, slight loss of gloss discoloration
4 High temperature resistant solvent naphtha 90d
5 Resistant to acetone wiping It is reciprocal 100 times, not show-through
6 Anti-flammability (UL94) V-0 grades
7 Limit oxygen index LOI 32.1
8 Adhesive force 4.2MPa
Embodiment 3
1. preparing mixed organic solvents: being by weight 1:1:1 by dimethylbenzene, butyl acetate, propylene glycol methyl ether acetate It is mixed；
2. preparing component A: by 20g bisphenol A type epoxy resin (epoxide number 0.21), the 10g hydroxy acrylate in component A Resin after resin is completely dispersed, is added in revolving speed being added with stirring into mixed organic solvents for 600~700r/min 2g rutile type titanium white, 6g coarse whiting, 4g clay, 8g mica powder, 2g zinc powder, 10g dimethyl methyl phosphonate, 2g magnesium hydroxide, Using basket type sand mill, revolving speed is to be ground to fineness≤45 μm under 1900~2000r/min, is 600~700r/min in revolving speed Stirring be added 0.5g BYK-9076,0.1g BYK-053,0.4g BYK-331,80 mesh filter screens filtering, 200~300r/min It is added with stirring the non-floating type aluminium powder of 2g, 2g expansible graphite, after being uniformly dispersed, obtains component A；
3.B component: being added IPDI in a kettle, after being warming up to 50 DEG C, N2Under protection, Isosorbide-5-Nitrae-fourth two is added dropwise under stiring Alcohol, PPG-1500, diglycol mixed solution, be added dropwise in proportions 1:4:2,1h, maintain the temperature at 80 It after reacting 2.5h at~90 DEG C, discharges and is cooled to room temperature after measurement NCO content, butyl acetate is added, adjustment solid content is extremely 70wt%.
A, two component of B is used in mixed way in the ratio of 3.5:1.
It is as follows to test paint film property.
Number Test item Test result
1 Flexibility 1mm
2 Impact resistance 100cm
3 Heat resistance 120h at 200 DEG C, coating not bulge are not fallen off, slight loss of gloss discoloration
4 High temperature resistant solvent naphtha 90d
5 Resistant to acetone wiping It is reciprocal 100 times, not show-through
6 Anti-flammability (UL94) V-0 grades
7 Limit oxygen index LOI 29.6
8 Adhesive force 3.9MPa
The above described is only a preferred embodiment of the present invention, being not that the invention has other forms of limitations, appoint What those skilled in the art changed or be modified as possibly also with the technology contents of the disclosure above equivalent variations etc. Imitate embodiment.But without departing from the technical solutions of the present invention, according to the technical essence of the invention to above embodiments institute Any simple modification, equivalent variations and the remodeling made, still fall within the protection scope of technical solution of the present invention.

Claims (10)

1. a kind of heat-resisting priming paint, which is characterized in that the heat-resisting priming paint includes following component:
The weight ratio of the component A and the B component is 2.5~4:1.
2. heat-resisting priming paint according to claim 1, which is characterized in that the epoxide number of the bisphenol A type epoxy resin is 0.12~0.56；The inorganic filler is talcum powder, mica powder, blanc fixe, coarse whiting, rutile type titanium white, gas phase two One or more in silica, clay；The rust resisting pigment is one or more of phosphoric acid salt, zinc powder.
3. heat-resisting priming paint according to claim 2, which is characterized in that the phosphoric acid salt is trbasic zinc phosphate, aluminum phosphate, phosphoric acid Molybdenum zinc, aluminium triphosphate.
4. heat-resisting priming paint according to claim 1, which is characterized in that the fire retardant include organic fire-retardant and/or The weight ratio of inorganic fire retardants, the organic fire-retardant and bisphenol A type epoxy resin is 0.05~2:1, the inorganic fire retardants Weight ratio with bisphenol A type epoxy resin is 0.02~0.5:1；The organic fire-retardant includes: phosphate and its derivative, phosphine One or more of acid esters, phosphite ester；The inorganic fire retardants includes: aluminium hydroxide, magnesium hydroxide, aluminium oxide, three oxygen Change two antimony, antimony pentoxide, titanium dioxide, zinc oxide, molybdenum oxide, molybdenum trioxide, ammonium molybdate, ammonium dimolybdate, ammonium tetramolybdate, eight One or more of ammonium molybdate, zinc molybdate, tin oxide, cuprous oxide, expansible graphite.
5. heat-resisting priming paint according to claim 4, which is characterized in that the phosphate and its derivative include: tricresyl phosphate Toluene ester, triphenyl phosphate, trimethylolpropane trimethacrylate, triisopropyl phenyl phosphate, triethyl phosphate, tricresyl phosphate fourth Ester, trioctyl phosphate, isopropylated triphenyl phosphates, triphenyl phosphite, phosphate toluene diphenyl ester, tricresyl phosphate butoxy second Ester, 1-phenyl-3-methyl-5-pyrazolone, cresyl diphenyl phosphate, resorcinol-bis- (diphenyl phosphates), the bis- (di(2-ethylhexyl)phosphates of bisphenol-A- Phenyl ester), one or more of resorcinol-bis- [two (2,6-3,5-dimethylphenyl) phosphates]；The phosphonate ester includes: N- Phosphonate ester, N, N- p-phenylenediamine base (2- hydroxyl) dibenzyl phosphonic acids tetra-ethyl ester, first in methylol Propionamides methyl phosphonate, ring One or more of base dimethyl phosphonate.
6. heat-resisting priming paint according to claim 1, which is characterized in that the mixed organic solvents are dimethylbenzene, acetic acid fourth The mixed solution of ester, propylene glycol methyl ether acetate, dimethylbenzene, butyl acetate, propylene glycol methyl ether acetate weight ratio be 5:3:2 Or 1:1:1.
7. heat-resisting priming paint according to claim 1, which is characterized in that the synthetic method of the modified isocyanate is as follows: Isophorone diisocyanate is added in a kettle, is warming up to 50 DEG C, N2Protection, dropwise addition polyhydric alcohol solutions under stirring, 0.5~ It is added dropwise, is maintained the temperature at 80~90 DEG C after reacting 2~3h in 1h, measure NCO content, discharging is cooled to room temperature, and is added Butyl acetate, adjustment solid content to 70~80wt%；The polyhydric alcohol solutions include the polyether polyols of two degrees of functionality, three-functionality-degree One or more of alcohol, polyester polyol.
8. heat-resisting priming paint according to claim 7, which is characterized in that when the polyhydric alcohol solutions are two kinds of polyalcohol mixing When, the weight ratio of described two polyalcohols is 1:(1~4)；When the polyhydric alcohol solutions are three kinds of polyalcohol mixing, described three Weight ratio 1:(1~4 of kind polyalcohol): (1~2).
9. heat-resisting priming paint according to claim 7 or 8, which is characterized in that the polyether polyol is PPG-200, PPG- 400, in PPG-600, PPG-1000, PPG-1500, PPG-2000, PPG-3000, PPG-4000, PPG-6000, PPG-8000 One or more；The polyester polyol includes ethylene glycol, propylene glycol, diethylene glycol, diglycol, trihydroxy methyl third Alkane, 1,4-butanediol, adipic acid, decanedioic acid, 1,6- hexylene glycol, neopentyl glycol, 3- methyl-1,5 pentanediols, dodecanedioic acid, One or more of isophathalic acid, azelaic acid, polycaprolactone.
10. a kind of preparation method of heat-resisting priming paint according to claim 1, which is characterized in that the preparation method includes Following steps:
(1) mixed organic solvents are prepared: being by weight 5:3:2 or 1 by dimethylbenzene, butyl acetate, propylene glycol methyl ether acetate: 1:1 is mixed；
(2) it prepares component A: being being added with stirring for 600~700r/min in revolving speed by the bisphenol A type epoxy resin in component A Into mixed organic solvents, after resin is completely dispersed, the whole components in addition to non-floating type aluminium powder, auxiliary agent is added, use basket Formula sand mill, revolving speed is to be ground to fineness≤45 μm under 1900~2000r/min, in the stirring that revolving speed is 600~700r/min Auxiliary agent, the filtering of 80 mesh filter screens is added, 200~300r/min is added with stirring the non-floating type aluminium powder after grinding distribution, is uniformly dispersed Afterwards, component A is obtained；
(3) it prepares B component: isophorone diisocyanate being added in a kettle, is warming up to 50 DEG C, N2Lower be added dropwise is stirred in protection Polyhydric alcohol solutions are added dropwise in 0.5~1h, maintain the temperature at 80~90 DEG C after reacting 2~3h, measure NCO content, discharging It is cooled to room temperature, butyl acetate is added, adjust solid content to 70~80wt%, obtain B component.
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110744838A (en) * 2019-10-10 2020-02-04 马贵其 Preparation method of fireproof heat-preservation composite extruded sheet
CN112175466A (en) * 2020-10-23 2021-01-05 湖州汇邦环保科技有限公司 Water-based steel structure flame-retardant paint suitable for high-temperature environment
CN112194970A (en) * 2020-10-16 2021-01-08 贵州黔鳌信息技术有限公司 Heat-insulating noise-reducing waste gas-removing vehicle paint and manufacturing method thereof
CN112961578A (en) * 2021-02-10 2021-06-15 浙江工业大学 Epoxy resin anticorrosive paint based on black talc and preparation method thereof
CN114874696A (en) * 2021-06-25 2022-08-09 上海维巳达实业有限公司 High-temperature-resistant paint for spray marking and preparation method thereof

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CN1876740A (en) * 2006-07-12 2006-12-13 海洋化工研究院 Solvent-free expansion type fire-proof epoxy coating and its preparation method
CN101985540A (en) * 2009-07-28 2011-03-16 海洋化工研究院 Preservative primer used for ocean steel structure spray polyurea

Patent Citations (2)

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CN1876740A (en) * 2006-07-12 2006-12-13 海洋化工研究院 Solvent-free expansion type fire-proof epoxy coating and its preparation method
CN101985540A (en) * 2009-07-28 2011-03-16 海洋化工研究院 Preservative primer used for ocean steel structure spray polyurea

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110744838A (en) * 2019-10-10 2020-02-04 马贵其 Preparation method of fireproof heat-preservation composite extruded sheet
CN112194970A (en) * 2020-10-16 2021-01-08 贵州黔鳌信息技术有限公司 Heat-insulating noise-reducing waste gas-removing vehicle paint and manufacturing method thereof
CN112175466A (en) * 2020-10-23 2021-01-05 湖州汇邦环保科技有限公司 Water-based steel structure flame-retardant paint suitable for high-temperature environment
CN112961578A (en) * 2021-02-10 2021-06-15 浙江工业大学 Epoxy resin anticorrosive paint based on black talc and preparation method thereof
CN114874696A (en) * 2021-06-25 2022-08-09 上海维巳达实业有限公司 High-temperature-resistant paint for spray marking and preparation method thereof
CN114874696B (en) * 2021-06-25 2023-12-12 上海维巳达实业有限公司 High-temperature-resistant paint for spray marks and preparation method thereof

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