CN104559734A - Double-component chemical-reaction thixotropic polyurethane waterproof paint and preparation method thereof - Google Patents
Double-component chemical-reaction thixotropic polyurethane waterproof paint and preparation method thereof Download PDFInfo
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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
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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
- C08G18/08—Processes
- C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
- C08G18/12—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- 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
- C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
- C08G18/3225—Polyamines
- C08G18/3228—Polyamines acyclic
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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
- C08G18/4804—Two or more polyethers of different physical or chemical nature
- C08G18/4812—Mixtures of polyetherdiols with polyetherpolyols having at least three hydroxy groups
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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
- C08G18/5021—Polyethers having heteroatoms other than oxygen having nitrogen
- C08G18/5024—Polyethers having heteroatoms other than oxygen having nitrogen containing primary and/or secondary amino groups
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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
- C08G18/40—High-molecular-weight compounds
- C08G18/60—Polyamides or polyester-amides
- C08G18/603—Polyamides
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- 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
- 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
- C09D7/65—Additives macromolecular
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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
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
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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
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Abstract
The invention discloses a double-component chemical-reaction thixotropic polyurethane waterproof paint which is composed of a component A and a component B. The component A comprises the following ingredients in parts by weight: 20-40 parts of isocyanate, 20-50 parts of polyether glycol, 5-15 parts of plasticizer and 0-1 part of high-performance assistant. The component B comprises the following ingredients in parts by weight: 20-40 parts of polyether glycol, 5-30 parts of chain extender, 5-20 parts of plasticizer, 0.1-1 part of polymerization inhibitor, 0.1-1 part of amine reactant, 0.2-1 part of catalyst, 20-40 parts of pigment and filler, 5-20 parts of solvent and 0.1-1 part of high-performance assistant. Since the component B contains the special-type amine reactant capable of reacting with isocyanate, the polyurea compound can be quickly generated after the two components are mixed under the action of the specific polymerization inhibitor; and the compound can form abundant hydrogen bonds with the polyurethane prepolymer, so that the double-component chemical-reaction thixotropic polyurethane waterproof paint has favorable thixotropy and constructability.
Description
Technical field
The present invention relates to a kind of building water-proof paint, particularly relate to a kind of two-component chemical reaction thixotropic polyurethane water-proof paint and preparation method thereof.
Background technology
Polyurethane water-proof paint belongs to chemical reaction type waterproof paint, it is a kind of elastomeric high elastic coating after solidification, this material, with its excellent over-all properties, is use the most successful a kind of coating film waterproof material up to now, in buildings waterproof application, occupy critical role.Polyurethane water-proof paint, according to its composition and curing mechanism, is divided into the large class of single component and two-pack two, wherein two-pack because film is closely knit, excellent performance, can disposable thick painting, produce simple, the features such as low price are widely used.But due to liquid polyurethane good leveling property, elevation construction trickling especially severe, the difficult problem that the problems such as thickness have become industry cannot be once gone up at elevation construction, although blade coating and two-pack place for some time after mixing repeatedly can to adopt multipass, construct again after treating in its viscosity, slightly can extenuate the problem of elevation construction trickling, but still effectively can not solve the problem of elevation construction trickling, also there will be viscosity large simultaneously, scrape not open, the new problems such as bad construction, cause causing waste of material, and construction cost increases.
For the problems referred to above, the solution that current this area is comparatively commonly used be additional thixotropic agent to improve the thixotropic property of product, make it be able at elevation construction.But because polyurethane material polarity is larger, common thixotropic agent is as very undesirable in the thixotropic effects in polyurethane system such as gas-phase silica, aerosil, hydrogenated castor oil and derivative, organobentonite etc., although use thixotropic agent adds viscosity during product construction, but solidification and the powerful polyurethane coating of viscosifying power are difficult to construct, can application property very poor, add construction cost.Such as namely CN201210324265.8 discloses a kind of two-component polyurethane corner sealant, by to different molecular weight, different functionality polyether glycol, the selection of mineral filler, thixotropic agent reasonably combined, and with the use of adhesion promoter and catalyzer, make its curing speed fast, bonding and good sealing effect, and there is good thixotropy and processing property.CN201310315369.7 discloses a kind of Two-component waterborne polyurethane adhesive, in traditional formula system, add silane coupling agent strengthen its cohesive force and the feature keeping viscosity little, but this kind of mode scope of application is narrower, usually the purposes such as joint filling can only be used for, simultaneously stricter to the restriction of raw material.
Summary of the invention
Applicant have extensively studied for many years Two-component Waterproof Polyurethane Coating vertical elevation construction and can the problem of application property, and the polyurethane water-proof paint achieving chemical reaction thixotropic is improved by composition, when without the need to using thixotropic agent, ensure that Two-component Waterproof Polyurethane Coating has good thixotropy, effectively can solve elevation construction trickling problem, simultaneously constructability again
Specifically, the present invention is achieved through the following technical solutions:
A kind of two-component chemical reaction thixotropic polyurethane water-proof paint, be made up of A, B two components, wherein component A comprises isocyanic ester 20-40 weight part, polyethers 20-50 weight part, softening agent 5-15 weight part and high performance adjuvant 0-1 weight part, and B component comprises polyethers 20-40 weight part, chainextender 5-30 weight part, softening agent 5-20 weight part, stopper 0.1-1 weight part, amine reagent 0.1-1 weight part, catalyzer 0.2-1 weight part, color stuffing 20-40 weight part, solvent 5-20 weight part, high performance adjuvant 0.1-1 weight part; Wherein, described stopper is a kind of in ortho-phosphoric acid, tartrate, Benzoyl chloride, phenylformic acid etc. and/or more than one mixture, and described amine reagent is a kind of in polyethers diamine, small molecules diamine, polymeric amide and phenolic aldehyde amine etc. and/or more than one mixture.
By above-mentioned improvement, reaction rapidly in the rear 5-10min of two-pack mixing, amine reagent used in B component and isocyanate reaction, the polyurea compound containing a large amount of urea groups with specific molecular structure is generated in the situation and preparation temperature of given stopper, this compound and urethane form a large amount of hydrogen bond, thus sharply increase system static viscosity formation paste, and static viscosity sharply increases, there is good thixotropy, elevation construction trickling especially severe can be solved; Meanwhile, viscosity reduces rapidly under external force, and dynamic viscosity is substantially constant, is conducive to construction, overcomes tradition and adopts the scheme adding thixotropic agent to be difficult to the problem of constructing.
In the present invention, described isocyanic ester is selected from a kind of in tolylene diisocyanate (TDI), diphenylmethanediisocyanate (MDI) and/or more than one mixture.
In the present invention, described polyether glycol is selected from a kind of in PPG class polyether glycol, POP base polymer polyether glycol, PTMEG class polytetramethylene oxide polyvalent alcohol etc. and/or more than one mixture; Preferably, polyether glycol is selected from a kind of in polyether Glycols, polyether-tribasic alcohol, polyethers tetravalent alcohol etc. and/or more than one mixture, and molecular weight is about 500-5000, and hydroxyl value is 40-400mg KOH/g.
In the present invention, described chainextender is binary amine chainextender, di-alcohols chainextender, alcamines chainextender a kind of and/or more than one mixture; Wherein, binary amine chainextender is 3,3 '-two chloro-4,4-diaminodiphenyl-methanes (MOCA); Di-alcohols chainextender is a kind of in BDO, ethylene glycol, propylene glycol, glycol ether, neopentyl glycol and/or more than one mixture; Alcamines chainextender is thanomin, diethanolamine, trolamine, tri-isopropanolamine and N, N ' a kind of in-bis-(2-hydroxypropyl) aniline and/or more than one mixture.
In the present invention, described catalyzer is selected from a kind of of the organo-metallic catalysts such as dibutyl tin laurate, stannous octoate, isocaprylic acid be plumbous or fatty amines, alicyclic ring amine, aromatic amine and the tertiary amine catalyst such as alcamines and ammonium salt compounds thereof and/or more than one mixture.
In the present invention, described softening agent is selected from as a kind of in dioctyl phthalate (DOP), dibutyl phthalate, diisononyl phthalate, clorafin, aromatic hydrocarbon oil, citric acid ester plasticizer etc. and/or more than one mixture, above-mentioned softening agent used and urethane consistency good, stability and synergetic property remarkable.
In the present invention, described solvent is a kind of in toluene, dimethylbenzene, solvent oil, ethyl acetate, butylacetate etc. and/or more than one mixture.
In the present invention, described color stuffing is a kind of in carbon black, titanium dioxide, iron oxide yellow, kaolin, cement, coarse whiting, barium sulfate, magnesium oxide, calcium oxide, wollastonite, silicon powder, talcum powder etc. and/or more than one mixture.
In the present invention, described high performance adjuvant is that a kind of in defoamer, flow agent, anti-settling agent, coupling agent, oxidation inhibitor, retardant etc. and/or more than one mixture are multiple.Auxiliary agent described above be this area commonly use, for those skilled in the art are widely known.
Further, accordingly, the invention discloses the preparation method of above-mentioned two-component chemical reaction thixotropic polyurethane water-proof paint, comprise the steps:
Component A:
A. in reaction vessel, add the polyether glycol of 20-50 weight part, stir and be warmed up to 100 DEG C-130 DEG C, dewater 2 ~ 3 hours under vacuum condition;
B. reduce the temperature to 60 DEG C-80 DEG C, add 20-40 weight part isocyanic ester, under 60-100 DEG C of whipped state, react 2 ~ 3 hours;
C. reduce the temperature to 50 DEG C-60 DEG C, add 5-15 parts by weight of plasticizer and 0-1 weight part high performance adjuvant, be cooled to 30 DEG C of-40 DEG C of nitrogen filled protections, discharging obtains component A.
B component:
A. in reaction vessel, add the polyether glycol of 20-40 weight part, the color stuffing of the chainextender of 5-30 weight part, the softening agent of 5-20 weight part, 20-40 weight part, stir and be warmed up to 100 DEG C-130 DEG C, dewater 2 ~ 3 hours under vacuum condition;
B. 50 DEG C-60 DEG C are reduced the temperature to; add 0.2-1 part by weight of catalyst, the stopper of 0.1-1 weight part, the amine reagent of 0.1-1 weight part, 0.1-1 weight part high performance adjuvant, 5-20 parts by weight solvent, stirring 1-2 hour; after being uniformly dispersed; be cooled to 30 DEG C of-40 DEG C of nitrogen filled protections, discharging obtains B component.
Wherein, vacuum condition used is not particularly limited, and vacuum-0.01MPa used on general industry can satisfy the demand.
In the storage position, two-component chemical reaction thixotropic polyurethane water-proof paint A, B component viscosity are very low, all have extraordinary mobility, mix in proportion the compound producing a kind of thixotropic property excellence in rear 5-8min in use, this is thick and do not stick, slightly firmly can stir out, good construction, but retrogradation immediately after stirring stopping, not flowing, trickle at facade or slope bearing layer or slightly trickle, can elevation construction more than film 1-1.5mm.
Two-component chemical reaction thixotropic polyurethane water-proof paint of the present invention overcomes conventional bicomponent polyurethane water-proof paint good leveling property, thixotropic property is poor, the shortcoming of elevation construction trickling, being improved by composition makes Two-component Waterproof Polyurethane Coating have good thixotropic, can solve elevation construction and to trickle serious problem.
Embodiment
Essence for a better understanding of the present invention; followingly give embodiments of the present invention; only how to implement for illustration of the present invention; and unrestricted the present invention only can by following scheme implementation; on the basis understanding technical solution of the present invention; still belong to protection scope of the present invention to change, replacement, structural modification etc. that the present invention carries out, protection scope of the present invention is covered by its claim and equivalents thereof.
Following raw material used, all has commercially available.
Embodiment 1
Proportioning raw materials:
Component A:
B component:
Technological process:
Component A:
A. in reaction vessel, add the polyether glycol of 20-50 weight part, stir and be warmed up to 100 DEG C-130 DEG C, vacuum is dewater 2 ~ 3 hours under the condition of-0.01MPa;
B. reduce the temperature to 60 DEG C less than-80 DEG C, add 20-40 weight part isocyanic ester, under 60-100 DEG C of whipped state, react 2 ~ 3 hours;
C. reduce the temperature to 50 DEG C less than-60 DEG C, add 5-15 parts by weight of plasticizer and 0-1 weight part high performance adjuvant, be cooled to 30 DEG C of less than-40 DEG C nitrogen filled protections, discharging obtains component A.
B component:
A. in reaction vessel, add the polyether glycol of 20-40 weight part, the color stuffing of the chainextender of 5-30 weight part, the softening agent of 5-20 weight part, 20-40 weight part, stirring is warmed up to 100 DEG C-130 DEG C, and vacuum is dewater 2 ~ 3 hours under the condition of-0.01MPa;
B. 50 DEG C less than-60 DEG C are reduced the temperature to; add 0.2-1 part by weight of catalyst, the stopper of 0.1-1 weight part, the amine reagent of 0.1-1 weight part, 0.1-1 weight part high performance adjuvant, 5-20 parts by weight solvent, stirring 1-2 hour; after being uniformly dispersed; be cooled to 30 DEG C of less than-40 DEG C nitrogen filled protections, discharging obtains B component.
During construction, A, B component mix by weight 1: 1.
Embodiment 2
Proportioning raw materials:
Component A:
B component:
Technological process:
Identical with embodiment 1.
During construction, A, B component mix by weight 1: 2.
Embodiment 3
Proportioning raw materials:
Component A:
B component:
Technological process:
Identical with embodiment 1.
During construction, A, B component mix by weight 1: 1.
Comparative example
Raw material is got as component A by following proportioning:
It is the polyoxytrimethylene trivalent alcohol of 800 by the molecular weight of 30 mass parts, the molecular weight of 5 mass parts is the polyoxytrimethylene trivalent alcohol of 300, the molecular weight of 6 mass parts is the Polyoxypropylene diol of 4000, the molecular weight of 2 mass parts is the Polyoxypropylene diol of 400, the nano-calcium carbonate of 15 mass parts, 400 order water-ground limestones of 35 mass parts, the aerosil of 3 mass parts, the 3A molecular sieve activation powder of 2 mass parts, the titanium dioxide of 2 mass parts, the γ-(2 of 1 mass parts, 3-epoxy third oxygen) stannous octoate of propyl trimethoxy silicane and 0.01 mass parts fully mediates evenly, sampling viscosimetric is 22Pas.This is the first component of two-component polyurethane corner sealant.
Raw material is got as B component by following proportioning:
400 order water-ground limestones of the polymethylene multi-phenenyl isocyanate of 40 mass parts, 55 mass parts, the aerosil of 5 mass parts are mediated, namely this two-component polyurethane corner sealant obtained obtains the second component.Sampling viscosimetric is 20Pas
Composite: after being mixed by the mass ratio of 0.8 ~ 1.2: 0.8 ~ 1.2 or the volume ratio of 1: 1 with described second component by described first component, namely to obtain two-component polyurethane corner sealant.
The Two-component Waterproof Polyurethane Coating A of embodiment of the present invention 1-3 gained, B component viscosity is all lower, about about 4000-6000mPa.s, but A, after B component mixes 5-8min according to a certain percentage, static viscosity in 5-8min in rise tens times rapidly, paste compound is formed after stopping stirring, after gentle agitation, viscosity is reduced to about 6000mPa.s rapidly, there is good workability, elevation construction, once thick painting 1-1.5mm does not trickle substantially, thus solve the trickling of existing Two-component Waterproof Polyurethane Coating elevation construction, be difficult to a difficult problem for thickness, and can waste of material be reduced, improve operating efficiency and construction quality.
Multidigit has been organized to use the said products to carry out site operation in same experimental architecture thing vertical wall surface the skilled manpower that coating application field works more than 5 years respectively, all draw the following conclusions: the polyurethane water-proof paint gentle agitation in use of embodiment 1-3 gained, under state is smeared in stirring, viscosity rapidly reduces 70-80%, can construct easily in vertical wall surface under this dynamic viscosity, to construct the rear high viscosity returned to rapidly under static state, effectively solved elevation construction trickling problem.Adopt this coating, 1.5-2mm can be brushed 2-3 time, thus solve the trickling of existing polyurethane water-proof paint elevation construction, be difficult to a difficult problem for thickness, and effectively reduce waste of material, improve operating efficiency and construction quality.
Adopt the product of comparative example, can realize brushing 1.5-2mm 3-4 time and the effect overcoming elevation construction trickling problem, but this product remains the high viscosity (static viscosity a little less than embodiment 1-3 product) under static state in construction process, no matter constructor is that product takes out from Raw material pail or the operation be applied on wall all needs to expend larger labor force and longer time in construction process, and labour intensity is large.Statistics find, relative to the mono-composition poyurethane water-proof paint of embodiment 1-3 gained, the product of comparative example with workman's labor capacity and man-hour calculation, greatly about about 5 times.
Claims (9)
1. a two-component chemical reaction thixotropic polyurethane water-proof paint, it is characterized in that being made up of A, B two components, wherein component A comprises isocyanic ester 20-40 weight part, polyether glycol 20-50 weight part, softening agent 5-15 weight part and high performance adjuvant 0-1 weight part; B component comprises polyether glycol 20-40 weight part, chainextender 5-30 weight part, softening agent 5-20 weight part, stopper 0.1-1 weight part, amine reagent 0.1-1 weight part, catalyzer 0.2-1 weight part, color stuffing 20-40 weight part, solvent 5-20 weight part, high performance adjuvant 0.1-1 weight part; Wherein, stopper is a kind of in ortho-phosphoric acid, tartrate, Benzoyl chloride, phenylformic acid and/or more than one mixture; Amine reagent is a kind of in polyethers diamine, small molecules diamine, polymeric amide and phenolic aldehyde amine and/or more than one mixture.
2. polyurethane water-proof paint according to claim 1, is characterized in that isocyanic ester is selected from tolylene diisocyanate and/or diphenylmethanediisocyanate.
3. polyurethane water-proof paint according to claim 1, is characterized in that polyether glycol is selected from a kind of in PPG class polyether glycol, POP base polymer polyether glycol, PTMEG class polytetramethylene oxide polyvalent alcohol and/or more than one mixture.
4. polyurethane water-proof paint according to claim 1, is characterized in that chainextender is binary amine chainextender, di-alcohols chainextender, alcamines chainextender a kind of and/or more than one mixture.
5. polyurethane water-proof paint according to claim 1, is characterized in that softening agent is selected from as a kind of in dioctyl phthalate (DOP), dibutyl phthalate, diisononyl phthalate, clorafin, citric acid ester plasticizer and/or more than one mixture.
6. polyurethane water-proof paint according to claim 1, is characterized in that catalyzer is selected from a kind of of the organo-metallic catalysts such as dibutyl tin laurate, stannous octoate, isocaprylic acid be plumbous or fatty amines, alicyclic ring amine, aromatic amine and the tertiary amine catalyst such as alcamines and ammonium salt compounds thereof and/or more than one mixture.
7. polyurethane water-proof paint according to claim 1, is characterized in that solvent is a kind of in toluene, dimethylbenzene, solvent oil, ethyl acetate, butylacetate etc. and/or more than one mixture.
8. polyurethane water-proof paint according to claim 1, is characterized in that color stuffing is a kind of in carbon black, titanium dioxide, iron oxide yellow, kaolin, cement, coarse whiting, barium sulfate, magnesium oxide, calcium oxide, wollastonite, silicon powder, talcum powder etc. and/or more than one mixture.
9. the preparation method of the two-component chemical reaction thixotropic polyurethane water-proof paint of claim 1, comprises the steps:
Component A:
A. in reaction vessel, add the polyether glycol of 20-50 weight part, stir and be warmed up to 100 DEG C-130 DEG C, dewater 2 ~ 3 hours under vacuum condition;
B. reduce the temperature to 60 DEG C-80 DEG C, add 20-40 weight part isocyanic ester, under 60-100 DEG C of whipped state, react 2 ~ 3 hours;
C. reduce the temperature to 50 DEG C-60 DEG C, add 5-15 parts by weight of plasticizer and 0-1 weight part high performance adjuvant, be cooled to 30 DEG C of-40 DEG C of nitrogen filled protections, discharging obtains component A.
B component:
A. in reaction vessel, add the polyether glycol of 20-40 weight part, the color stuffing of the chainextender of 5-30 weight part, the softening agent of 5-20 weight part, 20-40 weight part, stir and be warmed up to 100 DEG C-130 DEG C, dewater 2 ~ 3 hours under vacuum condition;
B. 50 DEG C-60 DEG C are reduced the temperature to; add 0.2-1 part by weight of catalyst, the stopper of 0.1-1 weight part, the amine reagent of 0.1-1 weight part, 0.1-1 weight part high performance adjuvant, 5-20 parts by weight solvent, stirring 1-2 hour; after being uniformly dispersed; be cooled to 30 DEG C of-40 DEG C of nitrogen filled protections, discharging obtains B component.
Priority Applications (1)
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| CN105038565A (en) * | 2015-08-18 | 2015-11-11 | 北京东方雨虹防水技术股份有限公司 | Bi-component polyurethane waterproof coating and preparation method thereof |
| CN105331274A (en) * | 2015-12-08 | 2016-02-17 | 上海台安实业集团有限公司 | Thixotropic bi-compound polyurethane waterproof paint capable of being constructed at high temperature and preparation method thereof |
| CN105505182A (en) * | 2015-12-18 | 2016-04-20 | 北京东方雨虹防水技术股份有限公司 | Double-component polyurethane waterproofing paint and preparation method thereof |
| CN105860911A (en) * | 2016-04-14 | 2016-08-17 | 苏州市丛岭胶粘剂有限公司 | EPU solvent-free double-component adhesive and preparation method thereof |
| CN107163824A (en) * | 2017-06-09 | 2017-09-15 | 天津昌海新材料科技发展有限公司 | One kind is used for impervious environment-friendly materials of pipeline two-component and preparation method thereof |
| CN107286309A (en) * | 2016-04-01 | 2017-10-24 | 新疆科能防水防护技术股份有限公司 | Low VOC and high performance bi-component hand scratch-type polyurea waterproof coating material and preparation method thereof |
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| CN105860911A (en) * | 2016-04-14 | 2016-08-17 | 苏州市丛岭胶粘剂有限公司 | EPU solvent-free double-component adhesive and preparation method thereof |
| CN107163824A (en) * | 2017-06-09 | 2017-09-15 | 天津昌海新材料科技发展有限公司 | One kind is used for impervious environment-friendly materials of pipeline two-component and preparation method thereof |
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| CN110317566B (en) * | 2019-07-12 | 2021-06-11 | 中铁第一勘察设计院集团有限公司 | Polysulfide sealant and preparation method thereof |
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| CN110272702B (en) * | 2019-07-12 | 2021-07-06 | 中铁第一勘察设计院集团有限公司 | Special glue for concrete assembled bridge and preparation method thereof |
| CN112281247A (en) * | 2020-10-30 | 2021-01-29 | 浙江华峰氨纶股份有限公司 | Method for preparing high-uniformity spandex through continuous polymerization |
| CN112500777A (en) * | 2020-11-30 | 2021-03-16 | 四川奥星建材科技有限公司 | PFS polyurethane waterproof coating and preparation and use methods thereof |
| CN112500777B (en) * | 2020-11-30 | 2022-01-25 | 四川奥星建材科技有限公司 | PFS polyurethane waterproof coating and preparation and use methods thereof |
| CN112662302A (en) * | 2020-12-18 | 2021-04-16 | 黎明化工研究设计院有限责任公司 | Single-component polyurethane spraying material and preparation method and use method thereof |
| CN112662302B (en) * | 2020-12-18 | 2022-04-12 | 黎明化工研究设计院有限责任公司 | Single-component polyurethane spraying material and preparation method and use method thereof |
| CN112980312A (en) * | 2021-03-05 | 2021-06-18 | 亚士防水科技(滁州)有限公司 | Two-component polyurethane waterproof coating and preparation method thereof |
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