CN106085192B - The coating process of the strong waterproof scumbling type polyurethane coating of high ferro concrete surface - Google Patents

The coating process of the strong waterproof scumbling type polyurethane coating of high ferro concrete surface Download PDF

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CN106085192B
CN106085192B CN201610409640.7A CN201610409640A CN106085192B CN 106085192 B CN106085192 B CN 106085192B CN 201610409640 A CN201610409640 A CN 201610409640A CN 106085192 B CN106085192 B CN 106085192B
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mass parts
coating
resin components
solvent
mass
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CN106085192A (en
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刘志伟
徐焕辉
夏国栋
胡宇
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Tianjin Changyuan Electronic Material Co Ltd
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    • 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
    • C09D175/14—Polyurethanes having carbon-to-carbon unsaturated bonds
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    • 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
    • C08G18/30—Low-molecular-weight compounds
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    • 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
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    • C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
    • C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
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    • C08G18/667—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
    • C08G18/6674—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203
    • C08G18/6677—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203 having at least three hydroxy groups
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    • 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
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    • C08G18/69—Polymers of conjugated dienes
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    • 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
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    • 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
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    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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    • C09D7/60—Additives non-macromolecular
    • C09D7/61—Additives non-macromolecular inorganic
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    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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    • 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
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C7/00—Coherent pavings made in situ
    • E01C7/08—Coherent pavings made in situ made of road-metal and binders
    • E01C7/35—Toppings or surface dressings; Methods of mixing, impregnating, or spreading them
    • E01C7/356—Toppings or surface dressings; Methods of mixing, impregnating, or spreading them with exclusively synthetic resin as a binder; Aggregate, fillers or other additives for application on or in the surface of toppings having exclusively synthetic resin as binder
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00—Structural or constructional details of bridges
    • E01D19/08—Damp-proof or other insulating layers; Drainage arrangements or devices ; Bridge deck surfacings
    • E01D19/083—Waterproofing of bridge decks; Other insulations for bridges, e.g. thermal ; Bridge deck surfacings
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    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
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    • C08K3/22—Oxides; Hydroxides of metals
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    • C08L2205/20—Hollow spheres

Abstract

The present invention discloses the coating process of the strong waterproof scumbling type polyurethane coating of high ferro concrete surface, it is made of seal coat, bottom surface paint and surface lacquer, each paint is made of resin components and solidification component, resin components are based on polyether polyol, chain extender, catalyst, coalescents, solidification component is made of isocyanates and solvent, when being prepared, the resin components and solidification component in three kinds of paints are prepared respectively.When being constructed, the resin components and solidification component that three kinds are painted first carry out carrying out application use after mixing, the seal coat is arranged on concrete surface and forms closing enamelled coating, the bottom surface paint is arranged on the upper surface of closing enamelled coating and forms bottom surface enamelled coating, and the surface lacquer is arranged on the upper surface of bottom surface enamelled coating and forms bottom surface enamelled coating.The underwater paint of the present invention has stronger adhesion, can form strong waterproof layer in the concrete surface of high ferro project, and whole coating thickness reduces, and is used conveniently and safely.

Description

The coating process of the strong waterproof scumbling type polyurethane coating of high ferro concrete surface
The present patent application is parent application " the strong waterproof scumbling type polyurethane coating of high ferro concrete surface and its application side The divisional application of method ", parent application application No. is 2014104747061, the applying date of parent application is September 17 in 2014 Day.
Technical field
The invention belongs to high-molecular coating technical fields, more specifically, are related to scumbling type polyurethane coating and its painting Dress method is mainly used as the concrete surface underwater paint of high ferro project.
Background technology
The former common railway that China high ferro concrete road surface, bridge deck water-proof layer material and structure still generally use at present Concrete road surface bridge surface waterproof layer standard TB/T2965-2011《Railway concrete bridge floor waterproof layer technical conditions》In three kinds it is anti- Water layer structures are respectively：Coiled material adds affixing coating (or adhesive) type, high-polymer modified pitch coiled material type and the coating without coiled material Type.Currently, China high-speed railway rail concrete road surface, bridge floor usually using spray polyurea as waterproof material, this spray polyurea Belong to first generation polyurea products, need to carry out coating operation using special spraying equipment, and coating layer thickness usually 2mm with On.
This spary coating type first generation polyurea products that waterproof layer structure uses on high-speed railway rail concrete road surface, bridge floor, though So can be exposed in outdoor application, there is certain weatherability, but poor with the adhesion of concrete road surface, bridge floor, tortoise easily occurs The morbid state with waterproof layers failures such as large area peelings is split, the safe operation generation of high ferro is seriously affected.Moreover, this first generation Polyurea products must carry out coating construction using special spraying equipment, in some orographic condition Special zone constructional difficulties.Separately Outside, this product must reach thicker thickness by verification, coating, and usually to reach 2mm or more can just play waterproof effect, Consumptive material is larger, higher operating costs.
Invention content
The film-type underwater paint that it is an object of the invention to overcome the deficiencies of the prior art and provide a kind of based on polyurethane and Its coating process, the underwater paint have stronger adhesion, can form strong waterproof layer in the concrete surface of high ferro project, and Whole coating thickness reduces, and is used conveniently and safely.
The technical purpose of the present invention is achieved by following technical proposals：
The strong waterproof scumbling type polyurethane coating of high ferro concrete surface is made of seal coat, bottom surface paint and surface lacquer.
The bottom surface paint is made of the first resin components and the first solidification component, wherein first resin components are by 50- The polyether polyol of 55 mass parts, the titanium dioxide of 15-25 mass parts, filler, the chain extender of 5-20 mass parts, 1-3 mass parts Catalyst, coalescents and solvent composition, it is described first solidification component by 70-80 mass parts isocyanates and solvent group At, wherein：In first resin components, the polyether polyol is end hydroxy butadiene or polytetrahydrofuran ether two Alcohol, the titanium dioxide be anatase thpe white powder, the filler by 3-5 mass parts barium sulfate, 4-8 mass parts middle pigment and The bentonites of 5-8 mass parts forms, and the chain extender is 1,4-butanediol, one kind of ethylene glycol, propylene glycol or glycerine, The catalyst be N, N- dimethyl benzylamines, n-BuLi or di-n-butyltin dilaurate one kind, the coalescents Be made of the antifoaming agent of 1-3 mass parts and the levelling agent of 1-2 mass parts, the solvent by 10-20 mass parts dimethylbenzene and The butyl acetate of 15-20 mass parts forms；In the first solidification component, the isocyanates is urethane-modified MDI, NCO mass content be 10~30%, preferably 10~28%, above-mentioned isocyanates can carry out it is purchased in market, also can voluntarily prepare as Under：In urethane-modified MDI, according to mass parts meter, polyol component accounts for 5~50 parts, preferably 5~25 parts, and 4,4'-MDI Content accounts for 20~80 parts, preferably 30~70 parts, and 2,4'-MDI account for 0~60 part, preferably 0~40 part.It is PTMEG to be modified with polyalcohol Or PPG, PTMEG number-average molecular weight are 100~3000, preferably 100~1000；PPG number-average molecular weights are 100~4000, preferably 100~2000.The solvent is made of the dimethylbenzene of 10-20 mass parts and the butyl acetate of 15-20 mass parts.
The surface lacquer is made of the second resin components and the second solidification component, wherein second resin components are by 45- The polyether polyol of 55 mass parts, the titanium dioxide of 25-30 mass parts, filler, the chain extender of 10-20 mass parts, 1-3 quality The catalyst of part, the tiny balloon of 10-15 mass parts, coalescents and solvent composition, the second solidification component is by 60-75 The isocyanates and solvent of mass parts form, wherein：In second resin components, the polyether polyol is poly- for terminal hydroxy group Butadiene or polytetrahydrofuran ether glycol, the titanium dioxide are rutile type titanium white, and the filler is by 3-5 mass parts sulphur The bentonite of sour barium, the middle pigment of 4-8 mass parts and 5-8 mass parts forms, and the chain extender is 1,4-butanediol, second two One kind of alcohol, propylene glycol or glycerine, the catalyst are N, and N- dimethyl benzylamines, n-BuLi or tin dilaurate two are just One kind of butyl tin；The particle size range of the tiny balloon is 0.1~100 μm preferably 10~50 microns.Tiny balloon includes poly- Object tiny balloon, ceramic hollow microspheres or glass hollow microballoon are closed, includes inert gas, density is less than 0.25g/cc, hollow The mass charge ratio of microballoon is 1%~50%, preferably 10~30%；The coalescents by 1-3 mass parts antifoaming agent and The levelling agents of 1-2 mass parts forms, the solvent by 10-20 mass parts dimethylbenzene and 15-20 mass parts butyl acetate Composition；It is described second solidification component in, the isocyanates be urethane-modified MDI, NCO mass contents be 10~ 30%, preferably 10~28%, above-mentioned isocyanates can carry out purchased in market, also can voluntarily prepare as follows：Urethane-modified MDI In, according to mass parts meter, polyol component accounts for 5~50 parts, preferably 5~25 parts, and 4,4'-MDI contents account for 20~80 parts, preferably 30 ~70 parts, 2,4'-MDI account for 0~60 part, preferably 0~40 part.It is PTMEG or PPG to be modified with polyalcohol, PTMEG number-average molecular weights It is 100~3000, preferably 100~1000；PPG number-average molecular weights are 100~4000, preferably 100~2000.The solvent by The dimethylbenzene of 10-20 mass parts and the butyl acetate of 15-20 mass parts composition.
The seal coat is made of third resin components and third solidification component, wherein the third resin components are by 45- Polyether polyol, filler, the chain extender of 10-15 mass parts, the catalyst of 1-3 mass parts, 20-40 quality of 50 mass parts Part epoxy resin, coalescents and solvent composition, the second solidification component is by the isocyanates of 70-75 mass parts and molten Agent forms, wherein：In the third resin components, the polyether polyol is end hydroxy butadiene or PolyTHF Ether glycol, the filler are made of the bentonite of 3-5 mass parts barium sulfate, the middle pigment of 4-8 mass parts and 5-8 mass parts, The chain extender is 1,4-butanediol, one kind of ethylene glycol, propylene glycol or glycerine, and the catalyst is N, N- dimethylbenzyls One kind of amine, n-BuLi or di-n-butyltin dilaurate；The epoxy resin refers to that epoxy functionalities are 1 or 2 or more Aliphatic or aromatic epoxy resin, such as saturation or unsaturated aliphatic, alicyclic, aromatic series or heterocyclic epoxy compounds. Common epoxy resin is end glycidyl ether type epoxy compound, preferably bisphenol A epoxide resin；The coalescents are by 1-3 matter Measure part antifoaming agent and 1-2 mass parts levelling agent composition, the solvent by 10-20 mass parts dimethylbenzene and 15-20 matter Measure the butyl acetate composition of part；In the second solidification component, the isocyanates is urethane-modified MDI, NCO matter It is 10~30%, preferably 10~28% to measure content, and above-mentioned isocyanates can carry out purchased in market, also can voluntarily prepare as follows：Amino first Acid esters is modified in MDI, and according to mass parts meter, polyol component accounts for 5~50 parts, preferably 5~25 parts, and 4,4'-MDI contents account for 20~ 80 parts, preferably 30~70 parts, 2,4'-MDI account for 0~60 part, preferably 0~40 part.It is PTMEG or PPG to be modified with polyalcohol, PTMEG number-average molecular weights are 100~3000, preferably 100~1000；PPG number-average molecular weights be 100~4000, preferably 100~ 2000.The solvent is made of the dimethylbenzene of 10-20 mass parts and the butyl acetate of 15-20 mass parts.
When being prepared, seal coat, bottom surface paint and surface lacquer are prepared respectively, prepares the resin in three kinds of paints respectively Component and solidification component, specifically：
The preparation of first resin components in the paint of bottom surface：Successively by titanium dioxide, barium sulfate, middle pigment, bentonite, dimethylbenzene, Butyl acetate, chain extender, catalyst, antifoaming agent and levelling agent are added in polyether polyol under continuous agitation, are stirred Enter grinder after mixing uniformly, polished filtering obtains the first resin components；
The preparation of first solidification component in the paint of bottom surface：Isocyanates, dimethylbenzene and butyl acetate are added to stirring successively It is filtered in kettle, after persistently stirring evenly and obtains the first solidification component；
The preparation of second resin components in surface lacquer：Successively by titanium dioxide, barium sulfate, middle pigment, bentonite, dimethylbenzene, It is more that butyl acetate, chain extender, catalyst, tiny balloon, antifoaming agent and levelling agent are added to polyethers under continuous agitation In first alcohol, grinder is entered after stirring evenly, polished filtering obtains the second resin components；
The preparation of second solidification component in surface lacquer：Isocyanates, dimethylbenzene and butyl acetate are added to stirring successively It is filtered in kettle, after persistently stirring evenly and obtains the second solidification component；
The preparation of third resin components in seal coat：Successively by titanium dioxide, barium sulfate, middle pigment, bentonite, dimethylbenzene, It is more that butyl acetate, chain extender, catalyst, epoxy resin, antifoaming agent and levelling agent are added to polyethers under continuous agitation In first alcohol, grinder is entered after stirring evenly, polished filtering obtains third resin components；
The preparation of third solidification component in seal coat：Isocyanates, dimethylbenzene and butyl acetate are added to stirring successively It is filtered in kettle, after persistently stirring evenly and obtains third solidification component.
In the above-mentioned technical solutions, the antifoaming agent, levelling agent select antifoaming agent commonly used in the art, levelling respectively Agent, such as antifoaming agent is polysiloxane defoaming agent, levelling agent is acrylic resin levelling agent.
In the above-mentioned technical solutions, in preparation process, mixing speed is 1200-1500r/min, and mixing time is 15—20min。
When being constructed, resin components and solidification component that three kinds are painted, which are carried out progress application after mixing, first makes With the seal coat is arranged on concrete surface and is formed closing enamelled coating, and the upper table in closing enamelled coating is arranged in the bottom surface paint On face and bottom surface enamelled coating is formed, the surface lacquer is arranged on the upper surface of bottom surface enamelled coating and is formed bottom surface enamelled coating, by above-mentioned three The thickness of the integral polyurethane dope layer of layer enamelled coating composition is more than 600 μm and is less than 1000 μm, wherein the bottom surface enamelled coating is dry Film thickness is more than or equal to 400 μm, and the thickness of dry film of paint layer from surface is more than or equal to 200 μm, remaining is the thickness of dry film for closing enamelled coating.
In addition, if concrete substrate surface is arranged screed-coat in concrete surface, is looking for there are when out-of-flatness or humidity Setting closing enamelled coating, continues construction of waterproof layer on the upper surface of flat bed.
Scumbling type polyurethane of the present invention is opposite as used in the past as a kind of high-speed railway rail concrete surface waterproof layer material Spary coating type polyureas (first generation polyurea products), constantly overcome that spray polyurea is limited to coating process and construction operation time is short Defect, and water resistance is further promoted, and possesses good tensile resistance and temperature-change resistance energy, and have one Fixed antiseptic property.It is that the unique formula of product creates excellent performance, and realizes application side a little that its is maximum Method, the simplification of operating procedure and coating scumbling, it is general only to need 600~800 μm, and the spray polyurea used in the past then needs It sprays at least 2mm thickness and just can reach matching waterproof effect.
Specific implementation mode
The technical solution further illustrated the present invention with reference to specific embodiment.The raw material that the embodiment of the present invention uses Bought from the supplier of existing market, analytically pure purity raw material, below with table illustrate each enamelled coating component and It is prepared by content, unit g, the charging sequence and agitating mode being all made of in invention content.
The preparation of first resin components of bottom surface paint
Embodiment 1 Embodiment 2 Embodiment 3 Embodiment 4
End hydroxy butadiene 50 55 0 0
Polytetrahydrofuran ether glycol 0 0 55 50
Anatase thpe white powder 25 15 20 18
Barium sulfate 5 4 5 3
Middle pigment 8 4 6 6
Bentonite 8 5 7 6
1,4- butanediols 15 0 0 0
Ethylene glycol 0 20 0 0
Propylene glycol 0 0 5 0
Glycerine 0 0 0 8
N, N- dimethyl benzylamine 3 0 0 0
N-BuLi 0 2 0 0
Di-n-butyltin dilaurate 0 0 1 1
Polysiloxane defoaming agent 3 2 1 2.5
Acrylic resin levelling agent 2 1.5 1 1
Dimethylbenzene 20 15 12 10
Butyl acetate 15 20 18 16
The preparation of first solidification component of bottom surface paint
The preparation of second resin components of surface lacquer
The preparation of second solidification component of surface lacquer
The preparation of the third resin components of seal coat
Embodiment 1 Embodiment 2 Embodiment 3 Embodiment 4
End hydroxy butadiene 50 45 0 0
Polytetrahydrofuran ether glycol 0 0 45 50
Barium sulfate 5 4 5 3
Middle pigment 8 4 6 6
Bentonite 8 5 7 6
1,4- butanediols 15 0 0 0
Ethylene glycol 0 10 0 0
Propylene glycol 0 0 12 0
Glycerine 0 0 0 14
N, N- dimethyl benzylamine 3 0 0 0
N-BuLi 0 2 0 0
Di-n-butyltin dilaurate 0 0 1 1
Bisphenol A epoxide resin 40 30 20 35
Polysiloxane defoaming agent 3 2 1 2.5
Acrylic resin levelling agent 2 1.5 1 1
Dimethylbenzene 20 15 12 10
Butyl acetate 15 20 18 16
The preparation of the third solidification component of seal coat
The embodiment of the embodiment of resin components in each enamelled coating and solidification component is matched according to number, i.e. resin The embodiment 1 of component and the embodiment 1 of solidification component are used cooperatively, and the setting of coating is carried out in concrete surface.Application Artificial coating can be used in operation completely, brushes, roller coating can be used.Determine that pre-treatment walks according to concrete substrate surface condition Suddenly：If basal plane is there are when out-of-flatness (such as pitted skin) or humidity, should first construct screed-coat, then carry out construction of waterproof layer, if without pitted skin, The construction of protective coating can directly be carried out.
Pre-treatment is carried out according to basal plane situation, keeps dried and clean, one layer of seal coat is coated on basal plane, to form closing Enamelled coating after paint surface drying to be closed, paints PPU-M1, thickness of dry film control is more than 400 μm, waits for that bottom surface is painted in its surface coating bottom surface After PPU-M1 surface dryings, in its surface coating surface paint PPU-M2, thickness of dry film control is more than 200 μm.
The performance test average result of scumbling type polyurethane underwater paint and seal coat, waterproof layer sees attached list 1,2,3
Subordinate list 1 closes enamelled coating
2 scumbling type polyurethane waterproof enamelled coating (PPU-M1, PPU-M2) of subordinate list
3 scumbling type polyurethane waterproof layer comprehensive technical performance of subordinate list
Annex 1：Tensile strength, elongation at break measure：Protective coating requires that free film is made, and thickness is 200~500 μ 1~2h is dried in m, natural drying 12~be put into afterwards in 105 DEG C of baking oven for 24 hours, takes out, and free film is cut into GB/ by natural cooling I type sample of dumbbell shaped, is measured on the testing machine of 250mm/min ± 50mm/min movement speeds as defined in T528-2009；
Annex 2：Temperature-change resistance measures：On 150 × 75 cement model, closed by site construction technology successively application It paints, do temperature-change resistance experiment after PPU-M1 and PPU-M2, dry 7d.60 DEG C of heat dry 2h, impregnate 6h in water at room temperature, -40 DEG C cold Freeze 16h, for a cycle.
Illustrative description has been done to the present invention above, it should explanation, the case where not departing from core of the invention Under, any simple deformation, modification or other skilled in the art can not spend the equivalent replacement of creative work equal Fall into protection scope of the present invention.

Claims (6)

1. the coating process of the strong waterproof scumbling type polyurethane coating of high ferro concrete surface, which is characterized in that when being constructed, The resin components and solidification component that three kinds are painted first carry out carrying out application use after mixing, and the seal coat setting is mixed On solidifying soil surface and closing enamelled coating is formed, the bottom surface paint is arranged on the upper surface of closing enamelled coating and forms bottom surface enamelled coating, institute It states surface lacquer and is arranged on the upper surface of bottom surface enamelled coating and is formed paint layer from surface, the integral polyurethane being made of above-mentioned three layers of enamelled coating The thickness of dope layer is more than 600 μm and is less than 1000 μm, wherein the thickness of dry film of the bottom surface enamelled coating is more than or equal to 400 μm, table The thickness of dry film of top coat layer is more than or equal to 200 μm, remaining is the thickness of dry film for closing enamelled coating；The strong waterproof of high ferro concrete surface is thin It applies type polyurethane coating to be made of seal coat, bottom surface paint and surface lacquer, wherein bottom surface paint is by the first resin components and first Cure component composition, wherein first resin components are by the polyether polyol of 50-55 mass parts, the titanium of 15-25 mass parts White powder, filler, the chain extender of 5-20 mass parts, the catalyst of 1-3 mass parts, coalescents and solvent composition, described first Solidification component is made of the isocyanates and solvent of 70-80 mass parts, wherein：In first resin components, the polyethers Polyalcohol is polytetrahydrofuran ether glycol, the titanium dioxide be anatase thpe white powder, the filler by 3-5 mass parts barium sulfate, The middle pigments of 4-8 mass parts and the bentonite of 5-8 mass parts composition, the chain extender are 1,4-butanediol, ethylene glycol, the third two One kind of alcohol or glycerine, the catalyst are N, N- dimethyl benzylamines, n-BuLi or di-n-butyltin dilaurate One kind, the coalescents are made of the antifoaming agent of 1-3 mass parts and the levelling agent of 1-2 mass parts, the solvent by The dimethylbenzene of 10-20 mass parts and the butyl acetate of 15-20 mass parts composition；It is described different in the first solidification component Cyanate be urethane-modified MDI, NCO mass contents be 10~30%, the solvent by 10-20 mass parts diformazan Benzene and the butyl acetate of 15-20 mass parts composition；
The surface lacquer is made of the second resin components and the second solidification component, wherein second resin components are by 45-55 matter Measure the polyether polyol of part, the titanium dioxide of 25-30 mass parts, filler, the chain extender of 10-20 mass parts, 1-3 mass parts Catalyst, the tiny balloon of 10-15 mass parts, coalescents and solvent composition, the second solidification component is by 60-75 quality Isocyanates and the solvent composition of part, wherein：In second resin components, the polyether polyol is polytetrahydrofuran ether Glycol, the titanium dioxide are rutile type titanium white, and the filler is by 3-5 mass parts barium sulfate, the middle pigment of 4-8 mass parts Formed with the bentonites of 5-8 mass parts, the chain extender be 1,4-butanediol, ethylene glycol, propylene glycol or glycerine one Kind, the catalyst be N, N- dimethyl benzylamines, n-BuLi or di-n-butyltin dilaurate one kind；It is described hollow micro- The particle size range of ball is 0.1~100 μm, including polymer hollow microsphere, ceramic hollow microspheres or glass hollow microballoon, is included Inert gas, density are less than 0.25g/cc, and the mass charge ratio of tiny balloon is 1%~50%；The coalescents are by 1-3 The antifoaming agent of mass parts and the levelling agent of 1-2 mass parts composition, the solvent by 10-20 mass parts dimethylbenzene and 15-20 The butyl acetate of mass parts forms；In the second solidification component, the isocyanates is urethane-modified MDI, NCO Mass content is 10~30%；The solvent is by the dimethylbenzene of 10-20 mass parts and the butyl acetate group of 15-20 mass parts At；
The seal coat is made of third resin components and third solidification component, wherein the third resin components are by 45-50 matter Measure the polyether polyol of part, filler, the chain extender of 10-15 mass parts, the catalyst of 1-3 mass parts, 20-40 mass parts Epoxy resin, coalescents and solvent composition, the third cure isocyanates and solvent group of the component by 70-75 mass parts At, wherein：In the third resin components, the polyether polyol is polytetrahydrofuran ether glycol, and the filler is by 3-5 The bentonite of mass parts barium sulfate, the middle pigment of 4-8 mass parts and 5-8 mass parts forms, and the chain extender is Isosorbide-5-Nitrae-fourth two One kind of alcohol, ethylene glycol, propylene glycol or glycerine, the catalyst are N, N- dimethyl benzylamines, n-BuLi or February One kind of cinnamic acid di-n-butyl tin；The epoxy resin refers to the aliphatic or aromatic epoxies that epoxy functionalities are 1 or 2 or more Resin；The coalescents are made of the antifoaming agent of 1-3 mass parts and the levelling agent of 1-2 mass parts, and the solvent is by 10- The dimethylbenzene of 20 mass parts and the butyl acetate of 15-20 mass parts composition；In the third cures component, the isocyanic acid Ester is urethane-modified MDI, and NCO mass contents are 10~30%；The solvent by 10-20 mass parts dimethylbenzene and The butyl acetate of 15-20 mass parts forms.
2. the coating process of the strong waterproof scumbling type polyurethane coating of high ferro concrete surface according to claim 1, special Sign is, if there are when out-of-flatness or humidity screed-coat is arranged in concrete surface, in screed-coat in concrete substrate surface Setting closing enamelled coating, continues construction of waterproof layer on upper surface.
3. the coating process of the strong waterproof scumbling type polyurethane coating of high ferro concrete surface according to claim 1 or 2, It is characterized in that, in the first solidification component of bottom surface paint, the isocyanates is urethane-modified MDI, NCO matter It is 10~28% to measure content.
4. the coating process of the strong waterproof scumbling type polyurethane coating of high ferro concrete surface according to claim 1 or 2, It is characterized in that, in the second resin components of the surface lacquer, the particle size range of the tiny balloon is 10~50 microns, empty The mass charge ratio of heart microballoon is 10~30%；In the second solidification component of the surface lacquer, the isocyanates is amino The ester modified MDI of formic acid, NCO mass contents are 10~28%.
5. the coating process of the strong waterproof scumbling type polyurethane coating of high ferro concrete surface according to claim 1 or 2, It is characterized in that, in the third resin components of the seal coat, the epoxy resin is bisphenol A epoxide resin；In the envelope It closes in the third solidification component of paint, the isocyanates is urethane-modified MDI, and NCO mass contents are 10~28%.
6. the application of the strong waterproof scumbling type polyurethane coating of high ferro concrete surface according to claim 1 or 2, special Sign is that the antifoaming agent is polysiloxane defoaming agent, the levelling agent is acrylic resin levelling agent.
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