CN105505182A - Double-component polyurethane waterproofing paint and preparation method thereof - Google Patents
Double-component polyurethane waterproofing paint and preparation method thereof Download PDFInfo
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- CN105505182A CN105505182A CN201510959144.4A CN201510959144A CN105505182A CN 105505182 A CN105505182 A CN 105505182A CN 201510959144 A CN201510959144 A CN 201510959144A CN 105505182 A CN105505182 A CN 105505182A
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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
- C08G18/28—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
- C08G18/38—Low-molecular-weight compounds having heteroatoms other than oxygen
- C08G18/3802—Low-molecular-weight compounds having heteroatoms other than oxygen having halogens
- C08G18/3804—Polyhydroxy compounds
- C08G18/3812—Polyhydroxy compounds having fluorine atoms
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/38—Low-molecular-weight compounds having heteroatoms other than oxygen
- C08G18/3893—Low-molecular-weight compounds having heteroatoms other than oxygen containing silicon
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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
- C08G18/4825—Polyethers containing two 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
- C08G18/4829—Polyethers containing 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
- C08G18/5003—Polyethers having heteroatoms other than oxygen having halogens
- C08G18/5015—Polyethers having heteroatoms other than oxygen having halogens having fluorine atoms
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—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
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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
- C08G18/70—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
- C08G18/758—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing two or more cycloaliphatic rings
Abstract
The invention discloses double-component polyurethane waterproofing paint. The double-component polyurethane waterproofing paint comprises a component A and a component B. The component A is prepared from aliphatic isocyanate, non-hydrophobic polyether polyol and a hydroxyl group containing reaction type hydrophobing agent. The component B is prepared from a chain extender and a catalyst. In the preparation raw material formulation of the paint, the hydroxyl group containing reaction type hydrophobing agent in the component A has hydrophobicity and better compatibility with other ingredients of the component A, and therefore the compatibility of a prepolymer formed by the hydroxyl group containing reaction type hydrophobing agent and aliphatic isocyanate and the other ingredients in the component A is improved, the reaction type hydrophobing agent is combined into the molecular structure of polyurethane through a chemical reaction, precipitation of the reaction type hydrophobing agent is avoided, and the hydrophobicity of the paint and the durability of the hydrophobic effect are improved. Due to the fact that the component A has hydrophobicity, the paint can still achieve the same hydrophobic effect without adopting a hydrophobing agent in the component B.
Description
Technical field
The invention belongs to waterproof paint technical field, be specifically related to a kind of double-composition polyurethane waterproof paint and preparation method thereof.
Background technology
Polyurethane water-proof paint belongs to chemical reaction type waterproof paint, is a kind of elastomeric high elastic coating after solidification, film integral seamless, because of the over-all properties of its excellence, be referred to as " liquid coiled material " by industry, worldwide widespread use, be particularly suitable for the waterproof of special-shaped part.Polyurethane water-proof paint, according to its composition and curing mechanism, is divided into mono-composition poyurethane water-proof paint and the large class of Multi-component Polyurethane waterproof paint two.Mono-composition poyurethane water-proof paint is one-component, plug and play, does not need to stir, and construction is reliable, but mono-composition poyurethane water-proof paint is on the high side, and double-composition polyurethane waterproof paint low price.
At present, general polyurethane water-proof paint all adopts aromatic isocyanate, especially tolylene diisocyanate (TDI), low price, excellent performance, but TDI steam forces down, toxicity is large, simultaneously with polyurethane water-proof paint prepared by aromatic isocyanate, easy xanthochromia, weather resistance is poor, should not directly expose, and is only suitable for indoor waterproof or outdoor non-exposed part waterproof.General polyurethane water-proof paint is used for exposing, need brushing one deck aliphatic acrylic polyurethane finish, brushing one deck aliphatic polyurethane top coat on polyurea waterproof coating material or general polyurethane water-proof coating as waterproof paint coating process disclosed in patent documentation CN102553817A and CN103774862A, to prevent aromatic urethane waterproof paint xanthochromia and performance degradation.Due to aliphatic acrylic polyurethane finish performance; especially tension set, can not show a candle to aromatic urethane waterproof paint, easily occurs that finish paint comes off or ftractures or the phenomenon such as bulge; lose provide protection, accelerate the aging of aromatic urethane waterproof paint and destroy.Existing polyurethane water-proof paint many employings aliphatic isocyanates for exposing, but second-order transition temperature is low, and active low, reaction is slow, and film is soft, and intensity is low, and have certain rubber visco-elasticity, surface is easily polluted, and affects outdoor result of use.
Summary of the invention
Technical problem to be solved by this invention is for above shortcomings in prior art, a kind of double-composition polyurethane waterproof paint and preparation method thereof is provided, this waterproof paint also passes through chemical reaction, response type hydrophobizing agent is attached in the molecular structure of urethane, avoids the precipitation of response type hydrophobizing agent.
The technical scheme that solution the technology of the present invention problem adopts is to provide a kind of double-composition polyurethane waterproof paint and comprises: component A, B component,
The composition of raw materials preparing described component A comprises: the response type hydrophobizing agent of aliphatic isocyanates, non-hydrophobic type polyether glycol, hydroxyl;
The composition of raw materials preparing described B component comprises: chainextender, catalyzer.The hydroxyl quantity of described response type hydrophobizing agent is more than or equal to 2, as the hydroxyl of the raw material of coating response type hydrophobizing agent can with the isocyano direct reaction of aliphatic isocyanates, thus make the response type hydrophobizing agent of hydroxyl be attached in the molecular structure of urethane, can not move, the surface energy of thus obtained coating is low, and hydrophobic effect is well lasting.Adopt aliphatic isocyanates to make waterproof paint have excellent weather resistance as raw material, bright in luster, tint retention is good, is applicable to the direct waterproof of the exsertion part such as roofing, bridge, and has excellent decorative effect.
Described response type hydrophobizing agent is polyol, its hydroxy radical content >=2, the hydroxyl in described response type hydrophobizing agent can with aliphatic isocyanates
In-NCO direct reaction, thus do not move, surface energy is low, and hydrophobic effect is good lastingly.
Preferably, described response type hydrophobizing agent is one or more in siliceous hydrophobizing agent, fluorine-containing hydrophobizing agent, fluorine silicon hydrophobizing agent, fluorine-containing polyether glycol.
Preferably, described siliceous hydrophobizing agent is triethoxy silanol and/or silicon-containing polyether polyvalent alcohol.
Preferably, the described aliphatic isocyanates prepared in the composition of raw materials of described component A is 10 ~ 30 weight parts, and described non-hydrophobic type polyether glycol is 10 ~ 100 weight parts, and the response type hydrophobizing agent of described hydroxyl is 20 ~ 100 weight parts;
The described chainextender prepared in the composition of raw materials of described B component is 5 ~ 30 weight parts, and described catalyzer is 0.2 ~ 2 weight part.
Preferably, the composition of raw materials preparing described component A also comprises: the first softening agent 0 ~ 40 weight part, the first auxiliary agent 0 ~ 2 weight part;
The composition of raw materials preparing described B component also comprises: the second non-hydrophobic type polyether glycol 0 ~ 50 weight part, response type hydrophobizing agent 0 ~ 50 weight part of the second hydroxyl, non-reactive hydrophobizing agent 0 ~ 2 weight part, pigment 0 ~ 20 weight part, uv-absorbing agent 0.2 ~ 2 weight part, filler 0 ~ 100 weight part, the second softening agent 0 ~ 100 weight part, solvent 0 ~ 30 weight part, the second auxiliary agent 0 ~ 2 weight part.
Preferably, prepare in the composition of raw materials of described component A: described first softening agent 1 ~ 40 weight part, described first auxiliary agent 0.1 ~ 2 weight part;
Prepare in the composition of raw materials of described B component: described second non-hydrophobic type polyether glycol 1 ~ 50 weight part, response type hydrophobizing agent 1 ~ 50 weight part of described second hydroxyl, described non-reactive hydrophobizing agent 0.2 ~ 2 weight part, described pigment 0.2 ~ 20 weight part, described uv-absorbing agent 0.2 ~ 2 weight part, described filler 10 ~ 100 weight part, described second softening agent 10 ~ 100 weight part, described solvent 5 ~ 30 weight part, described second auxiliary agent 0.1 ~ 2 weight part.Described non-reactive hydrophobizing agent not hydroxyl, does not participate in reaction, and the addition thus as the raw material of coating is general lower, otherwise migration may appear in non-reactive hydrophobizing agent, affects the persistence of hydrophobic effect.
Preferably, described first softening agent is one or more in dioctyl phthalate (DOP), dibutyl phthalate, diisononyl phthalate, clorafin, citrate;
Described first auxiliary agent is one or more in defoamer, flow agent, anti-settling agent, coupling agent, oxidation inhibitor, retardant;
Preferably, described non-reactive hydrophobizing agent is the non-reactive hydrophobizing agent containing fluorine and/or silicon; It is further preferred that described non-reactive hydrophobizing agent is organo-siloxane and/or silicone oil.
Described pigment is that the blue or green orchid of phthalein, carbon black, iron oxide yellow, compound iron are green, one or more in cologne earth; The weathering resistance of iron oxide yellow and acid resistance good.
Described uv-absorbing agent is one or more in salicylate type ultraviolet absorption agent, benzophenone class uv-absorbing agent, benzotriazole category uv-absorbing agent, group-substituted acrylonitrile uv-absorbing agent, triazines uv-absorbing agent, hindered amines uv-absorbing agent; Preferred salicylic acid phenyl ester, 2,4-dihydroxy benaophenonel, 2-(2 ˊ-hydroxyl-5 ˊ-aminomethyl phenyl) benzotriazole, 4-benzoyloxy-2,2,6,6-tetramethyl piperidine, 2,4,6-tri-(2 ' n-butoxyphenyl)-1, one or more in 3,5-triazine etc.; Described uv-absorbing agent can improve the weathering resistance of waterproof paint.
Described filler is one or more in kaolin, titanium dioxide, cement, coarse whiting, barium sulfate, magnesium oxide, calcium oxide, wollastonite, silicon powder, mica powder, talcum powder; When titanium dioxide, barium sulfate, mica powder, filler as waterproof paint, weathering resistance and acid resistance good.
Described second softening agent is one or more in dioctyl phthalate (DOP), dibutyl phthalate, diisononyl phthalate, clorafin, citrate;
Described solvent is one or more in toluene, dimethylbenzene, solvent oil 120#, solvent oil 150#, ethyl acetate, butylacetate;
Described second auxiliary agent is one or more in defoamer, flow agent, anti-settling agent, coupling agent, oxidation inhibitor, retardant;
The response type hydrophobizing agent of described second hydroxyl is one or more in siliceous hydrophobizing agent, fluorine-containing hydrophobizing agent, fluorine silicon hydrophobizing agent, fluorine-containing polyether glycol.It is further preferred that described siliceous hydrophobizing agent is triethoxy silanol and/or silicon-containing polyether polyvalent alcohol.
Described second non-hydrophobic type polyether glycol is one or more in polyether Glycols, polyether-tribasic alcohol, polyethers tetravalent alcohol.
Preferably, the molecular weight of described non-hydrophobic type polyether glycol is 500 ~ 5000, and hydroxyl value is 40 ~ 400mgKOH/g.
Preferably, described aliphatic isocyanates is one or more in hexamethylene-diisocyanate, isophorone diisocyanate, dicyclohexyl methane diisocyanate;
Described non-hydrophobic type polyether glycol is one or more in polyether Glycols, polyether-tribasic alcohol, polyethers tetravalent alcohol;
Described chainextender is amine aliphatics chainextender; One or more it is further preferred that described amine aliphatics chainextender is polyaspartic ester resin, 3, in your ketone of 3 '-dimethyl-4，4′-diaminodicyclohexylmethane, different fluorine diamines; Described chainextender, for improving speed of response, weathering resistance and mechanical property, makes the tensile strength of waterproof paint to be greater than 6.0MPa.
Described catalyzer is one or more in dibutyl tin laurate, stannous octoate, isocaprylic acid lead, fatty amines tertiary amine, alicyclic ring amine tertiary amine, aromatic amine tertiary amine, alcamines tertiary amine, ammonium salt class tertiary amine.
The present invention also provides a kind of preparation method of above-mentioned double-composition polyurethane waterproof paint, carries out following step according to above-mentioned formula:
The preparation of component A:
A. by the response type hydrophobizing agent of hydroxyl, the mixing of non-hydrophobic type polyether glycol, be warmed up to 100 DEG C ~ 120 DEG C, vacuum is dewater 3 ~ 5 hours under the condition of-0.01MPa;
B. reduce the temperature to 60 DEG C ~ 80 DEG C, add aliphatic isocyanates, at 80 ~ 100 DEG C, react 2 ~ 3 hours;
C. reduce the temperature to 50 DEG C ~ 60 DEG C, add the first softening agent and the first auxiliary agent, be cooled to 30 DEG C ~ 40 DEG C, be filled with protection of inert gas, discharging obtains component A;
The preparation of B component:
A. the response type hydrophobizing agent of the second non-hydrophobic type polyether glycol, the second hydroxyl, chainextender, pigment, filler, the second softening agent are stirred and be warmed up to 100 DEG C ~ 120 DEG C, vacuum is dewater 2 ~ 3 hours under the condition of-0.01MPa;
B. reduce the temperature to 50 DEG C ~ 60 DEG C, add catalyzer, non-reactive hydrophobizing agent, uv-absorbing agent, the second auxiliary agent, solvent, stir 1 ~ 2 hour, be cooled to 30 DEG C ~ 40 DEG C, inflated with nitrogen is protected, and discharging obtains B component.
The response type hydrophobizing agent of the hydroxyl in the raw materials formula of the coating in the present invention has hydrophobicity, thus the performed polymer that the response type hydrophobizing agent of hydroxyl and aliphatic isocyanates are formed has hydrophobicity, and then double-composition polyurethane waterproof paint is made to be provided with hydrophobicity.In the composition of raw materials of the preparation of coating, the response type hydrophobizing agent of the hydroxyl in component A has the better consistency of hydrophobicity and other composition with component A, thus improve the consistency of other composition in the performed polymer and component A that the response type hydrophobizing agent of hydroxyl and aliphatic isocyanates generate, and pass through chemical reaction, response type hydrophobizing agent is attached in the molecular structure of urethane, avoid the precipitation of response type hydrophobizing agent, improve the hydrophobicity of coating and the persistence of hydrophobic effect.The performed polymer formed due to response type hydrophobizing agent and the aliphatic isocyanates of the hydroxyl in component A has hydrophobicity, thus the hydrophobic effect making not use hydrophobizing agent also can make coating in B component and reach identical, thus avoid or reduce the precipitation phenomenon of adding hydrophobizing agent in B component, thus improve hydrophobicity and the stability of coating, the film-formation result of coating is good, and the storage time is long.Double-composition polyurethane waterproof paint in the present invention, has excellent self-cleaning function and weather resistance, can be directly used in the waterproof of the exsertion part such as roofing, bridge, have certain application prospect and actual effect.
The response type hydrophobizing agent of the hydroxyl in the raw materials formula of the double-composition polyurethane waterproof paint in the present invention improves the automatically cleaning ability of waterproof paint prepared therefrom.
Embodiment
For making those skilled in the art understand technical scheme of the present invention better, below in conjunction with embodiment, the present invention is described in further detail.
Embodiment 1
The present embodiment provides a kind of double-composition polyurethane waterproof paint to comprise: component A, B component,
The composition of raw materials preparing described component A comprises: the response type hydrophobizing agent of aliphatic isocyanates, non-hydrophobic type polyether glycol, hydroxyl;
The composition of raw materials preparing described B component comprises: chainextender, catalyzer.
The present embodiment provides a kind of preparation method of above-mentioned double-composition polyurethane waterproof paint, carries out following step according to above-mentioned formula:
The preparation of component A:
A. by the response type hydrophobizing agent of hydroxyl, the mixing of non-hydrophobic type polyether glycol, be warmed up to 100 DEG C, vacuum is dewater 3 hours under the condition of-0.01MPa;
B. reduce the temperature to 70 DEG C, add aliphatic isocyanates, at 100 DEG C, react 2.7 hours;
C. be filled with protection of inert gas, discharging obtains component A;
The preparation of B component:
A. stirred by chainextender and be warmed up to 100 DEG C, vacuum is dewater 3 hours under the condition of-0.01MPa;
B. reduce the temperature to 50 DEG C, add catalyzer, stir 1 hour, be cooled to 30 DEG C, inflated with nitrogen is protected, and discharging obtains B component.
Can construct after the A of double-composition polyurethane waterproof paint, B component are mixed according to a certain percentage; product performance meet GB/T19250-2013 technical indicator; oxygen index is high; good flame resistance; have excellent weather resistance; tint retention is good; non yellowing; there is excellent weathering resistance and flame retardant properties, do not add the benzene kind solvent such as coal tar and benzene,toluene,xylene, environmental protection simultaneously; use safety; be applicable to the waterproof of the exsertion part such as roofing, bridge, and there is good decorative effect, protect without any need for finish paint.
The response type hydrophobizing agent of the hydroxyl in the raw materials formula of the coating in the present embodiment has hydrophobicity, thus the performed polymer that the response type hydrophobizing agent of hydroxyl and aliphatic isocyanates are formed has hydrophobicity, and then double-composition polyurethane waterproof paint is made to be provided with hydrophobicity.In the composition of raw materials of the preparation of coating, the response type hydrophobizing agent of the hydroxyl in component A has the better consistency of hydrophobicity and other composition with component A, thus improve the consistency of other composition in the performed polymer and component A that the response type hydrophobizing agent of hydroxyl and aliphatic isocyanates generate, and pass through chemical reaction, response type hydrophobizing agent is attached in the molecular structure of urethane, avoid the precipitation of response type hydrophobizing agent, improve the hydrophobicity of coating and the persistence of hydrophobic effect.The performed polymer formed due to response type hydrophobizing agent and the aliphatic isocyanates of the hydroxyl in component A has hydrophobicity, thus the hydrophobic effect making not use hydrophobizing agent also can make coating in B component and reach identical, thus avoid or reduce the precipitation phenomenon of adding hydrophobizing agent in B component, thus improve hydrophobicity and the stability of coating, the film-formation result of coating is good, and the storage time is long.Double-composition polyurethane waterproof paint in the present embodiment, has excellent self-cleaning function and weather resistance, can be directly used in the waterproof of the exsertion part such as roofing, bridge, have certain application prospect and actual effect.
The response type hydrophobizing agent of the hydroxyl in the raw materials formula of the double-composition polyurethane waterproof paint in the present embodiment improves the automatically cleaning ability of waterproof paint prepared therefrom.
Embodiment 2
The present embodiment provides a kind of double-composition polyurethane waterproof paint to comprise: component A, B component,
The composition of raw materials preparing described component A comprises: response type hydrophobizing agent 60 weight part of aliphatic isocyanates 10 weight part, non-hydrophobic type polyether glycol 80 weight part, hydroxyl;
The composition of raw materials preparing described B component comprises: chainextender 5 weight part, catalyzer 2 weight part.
Described aliphatic isocyanates is the mixture (weight ratio is 1:2) of isophorone diisocyanate and dicyclohexyl methane diisocyanate; Described non-hydrophobic type polyether glycol is polyether Glycols, and molecular weight is 4500, and hydroxyl value is 40mgKOH/g; The response type hydrophobizing agent of described hydroxyl is fluorine-containing polyether glycol; Described chainextender is aliphatics chainextender is polyaspartic ester resin; Described catalyzer is aromatic amine tertiary amine.
The present embodiment provides a kind of preparation method of above-mentioned double-composition polyurethane waterproof paint, carries out following step according to above-mentioned formula:
The preparation of component A:
A. by the response type hydrophobizing agent of hydroxyl, the mixing of non-hydrophobic type polyether glycol, be warmed up to 105 DEG C, vacuum is dewater 4.5 hours under the condition of-0.01MPa;
B. reduce the temperature to 60 DEG C, add aliphatic isocyanates, at 90 DEG C, react 3 hours;
C. be filled with protection of inert gas, discharging obtains component A;
The preparation of B component:
A. stirred by chainextender and be warmed up to 110 DEG C, vacuum is dewater 2.7 hours under the condition of-0.01MPa;
B. reduce the temperature to 60 DEG C, add catalyzer, stir 1.5 hours, be cooled to 35 DEG C, inflated with nitrogen is protected, and discharging obtains B component.
Can construct after the A of double-composition polyurethane waterproof paint, B component are mixed according to a certain percentage; product performance meet GB/T19250-2013 technical indicator; oxygen index is high; good flame resistance; have excellent weather resistance; tint retention is good; non yellowing; there is excellent weathering resistance and flame retardant properties, do not add the benzene kind solvent such as coal tar and benzene,toluene,xylene, environmental protection simultaneously; use safety; be applicable to the waterproof of the exsertion part such as roofing, bridge, and there is good decorative effect, protect without any need for finish paint.
The response type hydrophobizing agent of the hydroxyl in the raw materials formula of the coating in the present embodiment has hydrophobicity, thus the performed polymer that the response type hydrophobizing agent of hydroxyl and aliphatic isocyanates are formed has hydrophobicity, and then double-composition polyurethane waterproof paint is made to be provided with hydrophobicity.In the composition of raw materials of the preparation of coating, the response type hydrophobizing agent of the hydroxyl in component A has the better consistency of hydrophobicity and other composition with component A, thus improve the consistency of other composition in the performed polymer and component A that the response type hydrophobizing agent of hydroxyl and aliphatic isocyanates generate, and pass through chemical reaction, response type hydrophobizing agent is attached in the molecular structure of urethane, avoid the precipitation of response type hydrophobizing agent, improve the hydrophobicity of coating and the persistence of hydrophobic effect.The performed polymer formed due to response type hydrophobizing agent and the aliphatic isocyanates of the hydroxyl in component A has hydrophobicity, thus the hydrophobic effect making not use hydrophobizing agent also can make coating in B component and reach identical, thus avoid or reduce the precipitation phenomenon of adding hydrophobizing agent in B component, thus improve hydrophobicity and the stability of coating, the film-formation result of coating is good, and the storage time is long.Double-composition polyurethane waterproof paint in the present embodiment, has excellent self-cleaning function and weather resistance, can be directly used in the waterproof of the exsertion part such as roofing, bridge, have certain application prospect and actual effect.
The response type hydrophobizing agent of the hydroxyl in the raw materials formula of the double-composition polyurethane waterproof paint in the present embodiment improves the automatically cleaning ability of waterproof paint prepared therefrom.
Embodiment 3
The present embodiment provides a kind of double-composition polyurethane waterproof paint to comprise: component A, B component,
The composition of raw materials preparing described component A comprises: response type hydrophobizing agent 20 weight part of aliphatic isocyanates 20 weight part, non-hydrophobic type polyether glycol 50 weight part, hydroxyl;
The composition of raw materials preparing described B component comprises: chainextender 30 weight part, catalyzer 0.2 weight part.
Described aliphatic isocyanates is dicyclohexyl methane diisocyanate; Described non-hydrophobic type polyether glycol is the mixture (weight ratio is 1:4) of polyether-tribasic alcohol and polyether Glycols, and molecular weight is 500, and hydroxyl value is 40mgKOH/g; The response type hydrophobizing agent of described hydroxyl is fluorine silicon hydrophobizing agent; Described chainextender is 3, the mixture (weight ratio is 3:5) of 3 '-dimethyl-4，4′-diaminodicyclohexylmethane and your ketone diamines of different fluorine; Described catalyzer is ammonium salt class tertiary amine.
The present embodiment provides a kind of preparation method of above-mentioned double-composition polyurethane waterproof paint, carries out following step according to above-mentioned formula:
The preparation of component A:
A. by the response type hydrophobizing agent of hydroxyl, the mixing of non-hydrophobic type polyether glycol, be warmed up to 120 DEG C, vacuum is dewater 3 hours under the condition of-0.01MPa;
B. reduce the temperature to 80 DEG C, add aliphatic isocyanates, at 80 DEG C, react 2 hours;
C. be filled with protection of inert gas, discharging obtains component A;
The preparation of B component:
A. stirred by chainextender and be warmed up to 120 DEG C, vacuum is dewater 2.6 hours under the condition of-0.01MPa;
B. reduce the temperature to 55 DEG C, add catalyzer, stir 1.8 hours, be cooled to 40 DEG C, inflated with nitrogen is protected, and discharging obtains B component.
Embodiment 4
The present embodiment provides a kind of double-composition polyurethane waterproof paint to comprise: component A, B component,
The composition of raw materials preparing described component A comprises: response type hydrophobizing agent 100 weight part of aliphatic isocyanates 30 weight part, non-hydrophobic type polyether glycol 30 weight part, hydroxyl;
The composition of raw materials preparing described B component comprises: chainextender 25 weight part, catalyzer 1.2 weight part.
Described aliphatic isocyanates is isophorone diisocyanate; Described non-hydrophobic type polyether glycol is polyethers tetravalent alcohol, and molecular weight is 5000, and hydroxyl value is 150mgKOH/g; The response type hydrophobizing agent of described hydroxyl is triethoxy silanol and silicon-containing polyether polyvalent alcohol (weight ratio is 2:1); Described chainextender is different fluorine that ketone diamines; Described catalyzer is alcamines tertiary amine.
The present embodiment provides a kind of preparation method of above-mentioned double-composition polyurethane waterproof paint, carries out following step according to above-mentioned formula:
The preparation of component A:
A. by the response type hydrophobizing agent of hydroxyl, the mixing of non-hydrophobic type polyether glycol, be warmed up to 110 DEG C, vacuum is dewater 4.5 hours under the condition of-0.01MPa;
B. reduce the temperature to 65 DEG C, add aliphatic isocyanates, at 95 DEG C, react 2.8 hours;
C. be filled with protection of inert gas, discharging obtains component A;
The preparation of B component:
A. stirred by chainextender and be warmed up to 105 DEG C, vacuum is dewater 2.8 hours under the condition of-0.01MPa;
B. reduce the temperature to 52 DEG C, add catalyzer, stir 1.6 hours, be cooled to 38 DEG C, inflated with nitrogen is protected, and discharging obtains B component.
Embodiment 5
The present embodiment provides a kind of double-composition polyurethane waterproof paint to comprise: component A, B component,
The composition of raw materials preparing described component A comprises: response type hydrophobizing agent 40 weight part of aliphatic isocyanates 15 weight part, non-hydrophobic type polyether glycol 10 weight part, hydroxyl;
The composition of raw materials preparing described B component comprises: chainextender 20 weight part, catalyzer 1 weight part, uv-absorbing agent 1 weight part.
Described aliphatic isocyanates is hexamethylene-diisocyanate; Described non-hydrophobic type polyether glycol is polyether Glycols, and molecular weight is 4000, and hydroxyl value is 200mgKOH/g; The response type hydrophobizing agent of described hydroxyl is fluorine-containing hydrophobizing agent; Described chainextender is polyaspartic ester resin; Described catalyzer is aromatic amine tertiary amine; Described uv-absorbing agent is salicylate type ultraviolet absorption agent.
The present embodiment provides a kind of preparation method of above-mentioned double-composition polyurethane waterproof paint, carries out following step according to above-mentioned formula:
The preparation of component A:
A. by the response type hydrophobizing agent of hydroxyl, the mixing of non-hydrophobic type polyether glycol, be warmed up to 115 DEG C, vacuum is dewater 4 hours under the condition of-0.01MPa;
B. reduce the temperature to 75 DEG C, add aliphatic isocyanates, at 90 DEG C, react 2.5 hours;
C. be filled with protection of inert gas, discharging obtains component A;
The preparation of B component:
A. stirred by chainextender and be warmed up to 115 DEG C, vacuum is dewater 2.2 hours under the condition of-0.01MPa;
B. reduce the temperature to 56 DEG C, add catalyzer, uv-absorbing agent, stir 1.2 hours, be cooled to 32 DEG C, inflated with nitrogen is protected, and discharging obtains B component.
Embodiment 6
The present embodiment provides a kind of double-composition polyurethane waterproof paint to comprise: component A, B component,
The composition of raw materials preparing described component A comprises: response type hydrophobizing agent 70 weight part of aliphatic isocyanates 25 weight part, non-hydrophobic type polyether glycol 100 weight part, hydroxyl, the first softening agent 40 weight part, the first auxiliary agent 2 weight part;
The composition of raw materials preparing described B component comprises: the second non-hydrophobic type polyether glycol 1 weight part, response type hydrophobizing agent 50 weight part of the second hydroxyl, chainextender 15 weight part, catalyzer 1.5 weight part, described non-reactive hydrophobizing agent 0.2 weight part, described pigment 20 weight part, described uv-absorbing agent 0.2 weight part, described filler 10 weight part, described second softening agent 60 weight part, described solvent 5 weight part, described second auxiliary agent 2 weight part.
The response type hydrophobizing agent of described second hydroxyl is triethoxy silanol, and described second non-hydrophobic type polyether glycol is polyether Glycols, and described aliphatic isocyanates is isophorone diisocyanate; Described non-hydrophobic type polyether glycol is polyether-tribasic alcohol, and molecular weight is 3000, and hydroxyl value is 300mgKOH/g; The response type hydrophobizing agent of described hydroxyl is siliceous hydrophobizing agent; Described first softening agent is dibutyl phthalate; Described first auxiliary agent is defoamer;
Described chainextender is 3,3 '-dimethyl-4，4′-diaminodicyclohexylmethane; Described catalyzer is fatty amines tertiary amine; Described non-reactive hydrophobizing agent is; Described pigment is; Described uv-absorbing agent is the mixture (weight ratio is 5:2) of group-substituted acrylonitrile uv-absorbing agent and triazines uv-absorbing agent; Described filler is talcum powder; Described second softening agent is citrate; Described solvent is toluene; Described second auxiliary agent is anti-settling agent.
The present embodiment provides a kind of preparation method of above-mentioned double-composition polyurethane waterproof paint, carries out following step according to above-mentioned formula:
The preparation of component A:
A. by the response type hydrophobizing agent of hydroxyl, the mixing of non-hydrophobic type polyether glycol, be warmed up to 120 DEG C, vacuum is dewater 3.5 hours under the condition of-0.01MPa;
B. reduce the temperature to 80 DEG C, add aliphatic isocyanates, at 80 DEG C, react 2 hours;
C. reduce the temperature to 50 DEG C DEG C, add the first softening agent and the first auxiliary agent, be cooled to 30 DEG C DEG C, be filled with protection of inert gas, discharging obtains component A;
The preparation of B component:
A. the second non-hydrophobic type polyether glycol, the response type hydrophobizing agent of the second hydroxyl, chainextender, pigment, filler, the second softening agent are warmed up to 120 DEG C, vacuum is dewater 2.5 hours under the condition of-0.01MPa;
B. reduce the temperature to 54 DEG C, add catalyzer, non-reactive hydrophobizing agent, uv-absorbing agent, the second auxiliary agent, solvent, stir 1.5 hours, be cooled to 36 DEG C, inflated with nitrogen is protected, and discharging obtains B component.
The response type hydrophobizing agent of the hydroxyl in the raw materials formula of the coating in the present embodiment has hydrophobicity, thus the performed polymer that the response type hydrophobizing agent of hydroxyl and aliphatic isocyanates are formed has hydrophobicity, and then double-composition polyurethane waterproof paint is made to be provided with hydrophobicity.In the composition of raw materials of the preparation of coating, the response type hydrophobizing agent of the hydroxyl in component A has the better consistency of hydrophobicity and other composition with component A, thus improve the consistency of other composition in the performed polymer and component A that the response type hydrophobizing agent of hydroxyl and aliphatic isocyanates generate, and pass through chemical reaction, response type hydrophobizing agent is attached in the molecular structure of urethane, avoid the precipitation of response type hydrophobizing agent, improve the hydrophobicity of coating and the persistence of hydrophobic effect.The performed polymer formed due to response type hydrophobizing agent and the aliphatic isocyanates of the hydroxyl in component A has hydrophobicity, thus the hydrophobic effect making not use hydrophobizing agent also can make coating in B component and reach identical, thus avoid or reduce the precipitation phenomenon of adding hydrophobizing agent in B component, thus improve hydrophobicity and the stability of coating, the film-formation result of coating is good, and the storage time is long.Double-composition polyurethane waterproof paint in the present embodiment, has excellent self-cleaning function and weather resistance, can be directly used in the waterproof of the exsertion part such as roofing, bridge, have certain application prospect and actual effect.
The response type hydrophobizing agent of the hydroxyl in the raw materials formula of the double-composition polyurethane waterproof paint in the present embodiment improves the automatically cleaning ability of waterproof paint prepared therefrom.
Embodiment 7
The present embodiment provides a kind of double-composition polyurethane waterproof paint to comprise: component A, B component,
The composition of raw materials preparing described component A comprises: response type hydrophobizing agent 30 weight part of aliphatic isocyanates 18 weight part, non-hydrophobic type polyether glycol 60 weight part, hydroxyl, the first softening agent 1 weight part, the first auxiliary agent 0.1 weight part;
The composition of raw materials preparing described B component comprises: the second non-hydrophobic type polyether glycol 25 weight part, response type hydrophobizing agent 1 weight part of the second hydroxyl, chainextender 25 weight part, catalyzer 2 weight part, described non-reactive hydrophobizing agent 2 weight part, described pigment 0.2 weight part, described uv-absorbing agent 2 weight part, described filler 100 weight part, described second softening agent 10 weight part, described solvent 30 weight part, described second auxiliary agent 1 weight part.
Described aliphatic isocyanates is dicyclohexyl methane diisocyanate; Described non-hydrophobic type polyether glycol is polyethers tetravalent alcohol, and molecular weight is 2000, and hydroxyl value is 400mgKOH/g; The response type hydrophobizing agent of described hydroxyl is triethoxy silanol; Described first softening agent is citrate; Described first auxiliary agent is anti-settling agent;
The response type hydrophobizing agent of described second hydroxyl is fluorine-containing hydrophobizing agent, and described second non-hydrophobic type polyether glycol is polyether-tribasic alcohol, and described chainextender is different fluorine that ketone diamines; Described catalyzer is that isocaprylic acid is plumbous; Described non-reactive hydrophobizing agent is; Described pigment is; Described uv-absorbing agent is salicylic acid phenyl ester; Described filler is coarse whiting and barium sulfate (weight ratio is 1:7); Described second softening agent is clorafin; Described solvent is solvent oil 120#; Described second auxiliary agent is the mixture (weight ratio is 2:7) of oxidation inhibitor and retardant.
The present embodiment provides a kind of preparation method of above-mentioned double-composition polyurethane waterproof paint, carries out following step according to above-mentioned formula:
The preparation of component A:
A. by the response type hydrophobizing agent of hydroxyl, the mixing of non-hydrophobic type polyether glycol, be warmed up to 100 DEG C, vacuum is dewater 5 hours under the condition of-0.01MPa;
B. reduce the temperature to 65 DEG C, add aliphatic isocyanates, at 100 DEG C, react 2 hours;
C. reduce the temperature to 60 DEG C, add the first softening agent and the first auxiliary agent, be cooled to 40 DEG C, be filled with protection of inert gas, discharging obtains component A;
The preparation of B component:
A. the second non-hydrophobic type polyether glycol, the response type hydrophobizing agent of the second hydroxyl, chainextender, pigment, filler, the second softening agent are warmed up to 110 DEG C, vacuum is dewater 3 hours under the condition of-0.01MPa;
B. reduce the temperature to 52 DEG C, add catalyzer, non-reactive hydrophobizing agent, uv-absorbing agent, the second auxiliary agent, solvent, stir 2 hours, be cooled to 31 DEG C, inflated with nitrogen is protected, and discharging obtains B component.
Embodiment 8
The present embodiment provides a kind of double-composition polyurethane waterproof paint to comprise: component A, B component,
The composition of raw materials preparing described component A comprises: response type hydrophobizing agent 90 weight part of aliphatic isocyanates 25 weight part, non-hydrophobic type polyether glycol 40 weight part, hydroxyl, the first softening agent 20 weight part, the first auxiliary agent 1 weight part;
The composition of raw materials preparing described B component comprises: the second non-hydrophobic type polyether glycol 50 weight part, response type hydrophobizing agent 25 weight part of the second hydroxyl, chainextender 30 weight part, catalyzer 1.5 weight part, described non-reactive hydrophobizing agent 1 weight part, described pigment 10 weight part, described uv-absorbing agent 1.5 weight part, described filler 50 weight part, described second softening agent 100 weight part, described solvent 20 weight part, described second auxiliary agent 0.1 weight part.
Described aliphatic isocyanates is hexamethylene-diisocyanate; Described non-hydrophobic type polyether glycol is polyether Glycols, and molecular weight is 5000, and hydroxyl value is 40mgKOH/g; The response type hydrophobizing agent of described hydroxyl is fluorine-containing polyether glycol; Described first softening agent is clorafin; Described first auxiliary agent is flow agent;
The response type hydrophobizing agent of described second hydroxyl is fluorine-containing polyether glycol, and described second non-hydrophobic type polyether glycol is polyethers tetravalent alcohol, and described chainextender is 3,3 '-dimethyl-4，4′-diaminodicyclohexylmethane; Described catalyzer is the mixture (weight ratio is 2:7) of dibutyl tin laurate and stannous octoate; Described non-reactive hydrophobizing agent is; Described pigment is; Described uv-absorbing agent is 4-benzoyloxy-2,2,6,6-tetramethyl piperidine; Described filler is kaolin; Described second softening agent is the mixture (weight ratio is 2:3) of dibutyl phthalate and diisononyl phthalate; Described solvent is butylacetate; Described second auxiliary agent is coupling agent.
The present embodiment provides a kind of preparation method of above-mentioned double-composition polyurethane waterproof paint, carries out following step according to above-mentioned formula:
The preparation of component A:
A. by the response type hydrophobizing agent of hydroxyl, the mixing of non-hydrophobic type polyether glycol, be warmed up to 110 DEG C, vacuum is dewater 3 hours under the condition of-0.01MPa;
B. reduce the temperature to 70 DEG C, add aliphatic isocyanates, at 85 DEG C, react 2.3 hours;
C. reduce the temperature to 55 DEG C, add the first softening agent and the first auxiliary agent, be cooled to 35 DEG C, be filled with protection of inert gas, discharging obtains component A;
The preparation of B component:
A. the second non-hydrophobic type polyether glycol, the response type hydrophobizing agent of the second hydroxyl, chainextender, pigment, filler, the second softening agent are warmed up to 100 DEG C, vacuum is dewater 2 hours under the condition of-0.01MPa;
B. reduce the temperature to 58 DEG C, add catalyzer, non-reactive hydrophobizing agent, uv-absorbing agent, the second auxiliary agent, solvent, stir 1 hour, be cooled to 39 DEG C, inflated with nitrogen is protected, and discharging obtains B component.
Test by GB GB/T19250-2013, the performance of the double-composition polyurethane waterproof paint in embodiment 6 ~ 8 is in table 1:
Table 1
Can construct after the A of double-composition polyurethane waterproof paint, B component are mixed according to a certain percentage; product performance meet GB/T19250-2013 technical indicator; oxygen index is high; good flame resistance; have excellent weather resistance; tint retention is good; non yellowing; there is excellent weathering resistance and flame retardant properties, do not add the benzene kind solvent such as coal tar and benzene,toluene,xylene, environmental protection simultaneously; use safety; be applicable to the waterproof of the exsertion part such as roofing, bridge, and there is good decorative effect, protect without any need for finish paint.
Be understandable that, the illustrative embodiments that above embodiment is only used to principle of the present invention is described and adopts, but the present invention is not limited thereto.For those skilled in the art, without departing from the spirit and substance in the present invention, can make various modification and improvement, these modification and improvement are also considered as protection scope of the present invention.
Claims (10)
1. a double-composition polyurethane waterproof paint, is characterized in that, comprising: component A, B component,
The composition of raw materials preparing described component A comprises: the response type hydrophobizing agent of aliphatic isocyanates, non-hydrophobic type polyether glycol, hydroxyl;
The composition of raw materials preparing described B component comprises: chainextender, catalyzer.
2. double-composition polyurethane waterproof paint according to claim 1, is characterized in that, described response type hydrophobizing agent is one or more in siliceous hydrophobizing agent, fluorine-containing hydrophobizing agent, fluorine silicon hydrophobizing agent, fluorine-containing polyether glycol.
3. double-composition polyurethane waterproof paint according to claim 2, is characterized in that, described siliceous hydrophobizing agent is triethoxy silanol and/or silicon-containing polyether polyvalent alcohol.
4. double-composition polyurethane waterproof paint according to claim 1, it is characterized in that, the described aliphatic isocyanates prepared in the composition of raw materials of described component A is 10 ~ 30 weight parts, described non-hydrophobic type polyether glycol is 10 ~ 100 weight parts, and the response type hydrophobizing agent of described hydroxyl is 20 ~ 100 weight parts;
The described chainextender prepared in the composition of raw materials of described B component is 5 ~ 30 weight parts, and described catalyzer is 0.2 ~ 2 weight part.
5. double-composition polyurethane waterproof paint according to claim 4, is characterized in that, the composition of raw materials preparing described component A also comprises: the first softening agent 0 ~ 40 weight part, the first auxiliary agent 0 ~ 2 weight part;
The composition of raw materials preparing described B component also comprises: the second non-hydrophobic type polyether glycol 0 ~ 50 weight part, response type hydrophobizing agent 0 ~ 50 weight part of the second hydroxyl, non-reactive hydrophobizing agent 0 ~ 2 weight part, pigment 0 ~ 20 weight part, uv-absorbing agent 0.2 ~ 2 weight part, filler 0 ~ 100 weight part, the second softening agent 0 ~ 100 weight part, solvent 0 ~ 30 weight part, the second auxiliary agent 0 ~ 2 weight part.
6. double-composition polyurethane waterproof paint according to claim 5, is characterized in that, prepares in the composition of raw materials of described component A: described first softening agent 1 ~ 40 weight part, described first auxiliary agent 0.1 ~ 2 weight part;
Prepare in the composition of raw materials of described B component: described second non-hydrophobic type polyether glycol 1 ~ 50 weight part, response type hydrophobizing agent 1 ~ 50 weight part of described second hydroxyl, described non-reactive hydrophobizing agent 0.2 ~ 2 weight part, described pigment 0.2 ~ 20 weight part, described uv-absorbing agent 0.2 ~ 2 weight part, described filler 10 ~ 100 weight part, described second softening agent 10 ~ 100 weight part, described solvent 5 ~ 30 weight part, described second auxiliary agent 0.1 ~ 2 weight part.
7. double-composition polyurethane waterproof paint according to claim 5, is characterized in that, described first softening agent is one or more in dioctyl phthalate (DOP), dibutyl phthalate, diisononyl phthalate, clorafin, citrate;
Described first auxiliary agent is one or more in defoamer, flow agent, anti-settling agent, coupling agent, oxidation inhibitor, retardant;
Described non-reactive hydrophobizing agent is the non-reactive hydrophobizing agent containing fluorine and/or silicon;
Described pigment is that the blue or green orchid of phthalein, carbon black, iron oxide yellow, compound iron are green, one or more in cologne earth;
Described uv-absorbing agent is one or more in salicylate type ultraviolet absorption agent, benzophenone class uv-absorbing agent, benzotriazole category uv-absorbing agent, group-substituted acrylonitrile uv-absorbing agent, triazines uv-absorbing agent, hindered amines uv-absorbing agent;
Described filler is one or more in kaolin, titanium dioxide, cement, coarse whiting, barium sulfate, magnesium oxide, calcium oxide, wollastonite, silicon powder, mica powder, talcum powder;
Described second softening agent is one or more in dioctyl phthalate (DOP), dibutyl phthalate, diisononyl phthalate, clorafin, citrate;
Described solvent is one or more in toluene, dimethylbenzene, solvent oil 120#, solvent oil 150#, ethyl acetate, butylacetate;
Described second auxiliary agent is one or more in defoamer, flow agent, anti-settling agent, coupling agent, oxidation inhibitor, retardant;
The response type hydrophobizing agent of described second hydroxyl is one or more in siliceous hydrophobizing agent, fluorine-containing hydrophobizing agent, fluorine silicon hydrophobizing agent, fluorine-containing polyether glycol;
Described second non-hydrophobic type polyether glycol is one or more in polyether Glycols, polyether-tribasic alcohol, polyethers tetravalent alcohol.
8. the double-composition polyurethane waterproof paint according to claim 1 ~ 7 any one, is characterized in that, the molecular weight of described non-hydrophobic type polyether glycol is 500 ~ 5000, and hydroxyl value is 40 ~ 400mgKOH/g.
9. the double-composition polyurethane waterproof paint according to claim 1 ~ 7 any one, it is characterized in that, described aliphatic isocyanates is one or more in hexamethylene-diisocyanate, isophorone diisocyanate, dicyclohexyl methane diisocyanate;
Described non-hydrophobic type polyether glycol is one or more in polyether Glycols, polyether-tribasic alcohol, polyethers tetravalent alcohol;
Described chainextender is amine aliphatics chainextender;
Described catalyzer is one or more in dibutyl tin laurate, stannous octoate, isocaprylic acid lead, fatty amines tertiary amine, alicyclic ring amine tertiary amine, aromatic amine tertiary amine, alcamines tertiary amine, ammonium salt class tertiary amine.
10. a preparation method for the double-composition polyurethane waterproof paint described in claim 5 ~ 7 any one, is characterized in that, carries out following step according to the formula described in claim 5 ~ 7 any one:
The preparation of component A:
A. by the response type hydrophobizing agent of hydroxyl, the mixing of non-hydrophobic type polyether glycol, be warmed up to 100 DEG C ~ 120 DEG C, vacuum is dewater 3 ~ 5 hours under the condition of-0.01MPa;
B. reduce the temperature to 60 DEG C ~ 80 DEG C, add aliphatic isocyanates, at 80 ~ 100 DEG C, react 2 ~ 3 hours;
C. reduce the temperature to 50 DEG C ~ 60 DEG C, add the first softening agent and the first auxiliary agent, be cooled to 30 DEG C ~ 40 DEG C, be filled with protection of inert gas, discharging obtains component A;
The preparation of B component:
A. the second non-hydrophobic type polyether glycol, the response type hydrophobizing agent of the second hydroxyl, chainextender, pigment, filler, the second softening agent are warmed up to 100 DEG C ~ 120 DEG C, vacuum is dewater 2 ~ 3 hours under the condition of-0.01MPa;
B. reduce the temperature to 50 DEG C ~ 60 DEG C, add catalyzer, non-reactive hydrophobizing agent, uv-absorbing agent, the second auxiliary agent, solvent, stir 1 ~ 2 hour, be cooled to 30 DEG C ~ 40 DEG C, inflated with nitrogen is protected, and discharging obtains B component.
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| CN112920700A (en) * | 2021-01-29 | 2021-06-08 | 北京九天行歌航天科技有限公司 | Anti-icing coating for low-temperature storage tank of rocket and preparation method thereof |
| CN115558393A (en) * | 2022-09-28 | 2023-01-03 | 安徽天安新材料有限公司 | Self-cleaning coating for decorative film, film material and preparation method of self-cleaning coating |
| CN115678396A (en) * | 2022-11-23 | 2023-02-03 | 扬州晨化新材料股份有限公司 | Polyurea coating material and application thereof in preparation of wind power blade coating |
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| CN115678396A (en) * | 2022-11-23 | 2023-02-03 | 扬州晨化新材料股份有限公司 | Polyurea coating material and application thereof in preparation of wind power blade coating |
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