CN105567072B - A kind of single-component polyurethane water-proof paint and preparation method thereof - Google Patents
A kind of single-component polyurethane water-proof paint and preparation method thereof Download PDFInfo
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- CN105567072B CN105567072B CN201510959153.3A CN201510959153A CN105567072B CN 105567072 B CN105567072 B CN 105567072B CN 201510959153 A CN201510959153 A CN 201510959153A CN 105567072 B CN105567072 B CN 105567072B
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
- C09D175/08—Polyurethanes from polyethers
-
- C—CHEMISTRY; METALLURGY
- 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
- C08G18/2805—Compounds having only one group containing active hydrogen
- C08G18/288—Compounds containing at least one heteroatom other than oxygen or nitrogen
- C08G18/289—Compounds containing at least one heteroatom other than oxygen or nitrogen containing silicon
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4804—Two or more polyethers of different physical or chemical nature
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—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
-
- 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
- C08G18/5096—Polyethers having heteroatoms other than oxygen containing silicon
-
- 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
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6666—Compounds of group C08G18/48 or C08G18/52
Abstract
The invention discloses a kind of single-component polyurethane water-proof paints and preparation method thereof, and the composition of raw materials for preparing the single-component polyurethane water-proof paint includes: aliphatic isocyanates, non-hydrophobic type polyether polyol, catalyst, hydroxyl response type hydrophobing agent.The hydroxyl response type hydrophobing agent of single-component polyurethane water-proof paint of the invention prepared in composition of raw materials has hydrophobicity and has better compatibility with other components in composition of raw materials, to improve the compatibility of other components in the performed polymer and single-component polyurethane water-proof paint that hydroxyl response type hydrophobing agent and aliphatic isocyanates generate, avoid the precipitation of hydrophobing agent, since performed polymer has hydrophobicity, so that single-component polyurethane water-proof paint is provided with hydrophobicity, and the response type hydrophobing agent of hydroxyl is integrated in the molecular structure of polyurethane by chemical reaction, never it is precipitated, improve the hydrophobicity and hydrophobic stability of single-component polyurethane water-proof paint, hydrophobic effect is lasting.
Description
Technical field
The invention belongs to polyurethane water-proof paint technical fields, and in particular to a kind of single-component polyurethane water-proof paint and its
Preparation method.
Background technique
Polyurethane water-proof paint belongs to chemical reaction type water-repellent paint, is a kind of high elastic coating of rubber-like after solidification,
Film integral seamless is referred to as " liquid coiled material " by industry, is worldwide widely applied because of its excellent comprehensive performance,
Waterproof particularly suitable for special-shaped part.Polyurethane water-proof paint is divided into mono-component polyurethane according to its composition and curing mechanism
Water-repellent paint and Multi-component Polyurethane water-repellent paint two major classes.It need to be by one when due to Multi-component Polyurethane water-repellent paint site operation
Certainty ratio ingredient, mechanical stirring, blistering is introduced in whipping process and ingredient is inaccurate, and stirring unequal will affect construction matter
Amount, thus caused by waterproof quality accident happen occasionally；And mono-composition poyurethane water-proof paint be one-component, plug and play,
Without stirring for construction is reliable, is widely used.
Since polyurethane water-proof paint glass transition temperature is low, especially aliphatic isocyanates, activity is low, and reaction is slow, by force
To spend low, film is soft, there is certain rubber viscoplasticity, and surface is easy dirty when exposed, non-reactive hydrophobing agent is added in coating,
Sponginess can be improved to a certain extent, but be easy to be precipitated, hydrophobic effect persistence is poor.
Summary of the invention
The technical problem to be solved by the present invention is to aiming at the above shortcomings existing in the prior art, provide a kind of one-component
Polyurethane water-proof paint and preparation method thereof, the response type hydrophobing agent for preparing the hydroxyl in composition of raw materials of coating have hydrophobic
Property and the better compatibility with other components in composition of raw materials, to improve the response type hydrophobing agent and rouge of hydroxyl
The compatibility for other components in performed polymer and single-component polyurethane water-proof paint that fat race isocyanates generates, and pass through chemistry
Reaction, hydrophobing agent is integrated in the molecular structure of polyurethane, the precipitation of hydrophobing agent is avoided, improve the hydrophobicity of coating with
And the persistence of hydrophobic effect.
The present invention provides a kind of single-component polyurethane water-proof paint, and the raw material for preparing the single-component polyurethane water-proof paint is matched
Side includes: the response type hydrophobing agent of aliphatic isocyanates, non-hydrophobic type polyether polyol, catalyst, hydroxyl.The response type
The hydroxyl quantity of hydrophobing agent is greater than or equal to 2, and the response type hydrophobing agent of the hydroxyl of the raw material as coating can be different with aliphatic
The isocyano of cyanate directly reacts, so that the response type hydrophobing agent of hydroxyl is integrated to the molecular structure of polyurethane
In, it will not migrate, the surface of the coating because prepared by can be low, and hydrophobic effect is well lasting.Using aliphatic isocyanates
Make water-repellent paint that there is excellent weather resistance as raw material, bright in luster, colour retention is good, and it is outer to be suitable for roofing, bridge etc.
Reveal the direct waterproof at position, and there is excellent decorative effect.
Preferably, the response type hydrophobing agent be siliceous hydrophobing agent, it is fluorine-containing hydrophobing agent, fluorine silicon hydrophobing agent, fluorine-containing poly-
One or more of ethoxylated polyhydric alcohol.
Preferably, the siliceous hydrophobing agent is triethoxysilicane alcohol and/or silicon-containing polyether polyalcohol.
Preferably, the aliphatic isocyanates are 5~15 parts by weight；The non-hydrophobic type polyether polyol be 1~
50 parts by weight；The catalyst is 0.02~1 parts by weight；The response type hydrophobing agent is 2~20 parts by weight.To improve one-component
The reaction speed and reduction film bubble, the raw material for preparing the single-component polyurethane water-proof paint of polyurethane water-proof paint are matched
Side includes latent curing agent.
Preferably, the composition of raw materials of the single-component polyurethane water-proof paint is prepared further include: plasticizer, solvent, face
Filler, ultraviolet absorber, catalyst, auxiliary agent.
Preferably, the aliphatic isocyanates are 5~15 parts by weight；The non-hydrophobic type polyether polyol be 1~
50 parts by weight；The catalyst is 0.02~1 parts by weight；The response type hydrophobing agent is 2~20 parts by weight；The latent curing agent
For 0.2~5 parts by weight；The plasticizer is 5~30 parts by weight；The solvent is 5~30 parts by weight；The pigments and fillers be 10~
80 parts by weight；The ultraviolet absorber is 0.1~5 parts by weight；The auxiliary agent is 0.1~2 parts by weight.
Preferably, the composition of raw materials of the single-component polyurethane water-proof paint is prepared further include: non-reactive hydrophobing agent,
The non-reactive hydrophobing agent is 0.2~2 parts by weight.The non-reactive hydrophobing agent not hydroxyl, is not involved in reaction, thus
The additive amount of raw material as coating is generally relatively low, and otherwise non-reactive hydrophobing agent is it is possible that migration, influences hydrophobic effect
The persistence of fruit.
Preferably, the non-reactive hydrophobing agent is organosiloxane and/or silicone oil.
Preferably, the non-reactive hydrophobing agent is the non-reactive hydrophobing agent containing fluorine and/or silicon.
Preferably, the aliphatic isocyanates are hexamethylene-diisocyanate (TDI), isophorone diisocyanate
One or more of ester (IPDI), hexamethylene diisocyanate (HDI), dicyclohexyl methyl hydride diisocyanate；
The non-hydrophobic type polyether polyol is one of polyether Glycols, polyether-tribasic alcohol, polyethers tetrahydroxylic alcohol or several
Kind；The molecular weight of the non-hydrophobic type polyether polyol is 500~5000, and hydroxyl value is 40~400mg KOH/g.
The catalyst is dibutyl tin dilaurate, stannous octoate, isooctyl acid lead, fatty amines tertiary amine, alicyclic ring amine
One or more of tertiary amine, aromatic amine tertiary amine, alcamines tertiary amine, ammonium salt class tertiary amine.
Preferably, the latent curing agent is imine latent curing agent and/or oxazolidine type latent curing agent；
Preferably, the oxazolidine type latent curing agent is weakly alkaline oxazolidine.Preferably, the weakly alkaline evil
Oxazolidine is 2- isopropyl oxazolidine, 2,2- dihydro-oxazole alkane, 2- isopropyl-N- ethoxy-oxazolidine, 2,2- dihydro-N- hydroxyl second
One or more of the ester type compound of base oxazolidine.
The plasticizer is dioctyl phthalate, dibutyl phthalate, diisononyl phthalate, chlorination
One or more of paraffin, citrate；
The solvent is one or more of toluene, dimethylbenzene, solvent naphtha, ethyl acetate, butyl acetate；
The pigments and fillers are carbon black, titanium dioxide, iron oxide yellow, kaolin, cement, coarse whiting, barium sulfate, magnesia, calcium oxide, silicon
One or more of lime stone, silicon powder, mica powder, talcum powder；
The ultraviolet absorber is that salicylate type ultraviolet absorbent, benzophenone class ultraviolet absorber, benzotriazole are ultraviolet
One of absorbent, group-substituted acrylonitrile ultraviolet absorber, triazines ultraviolet absorber, hindered amines ultraviolet absorber are several
Kind；
The auxiliary agent be one of defoaming agent, dispersing agent, levelling agent, anti-settling agent, coupling agent, antioxidant, retarder or
It is several.
Preferably, the ultraviolet absorber is septichen phenyl ester, 2,4-DihydroxyBenzophenone, 2- (2 ˊ-hydroxyl
- 5 ˊ of base-aminomethyl phenyl) benzotriazole, 4- benzoyloxy -2,2,6,6- tetramethyl piperidines, 2,4,6- tri- (2 ' n-butoxies
One or more of phenyl) -1,3,5-triazines.
It is further preferred that the pigments and fillers are one or more of titanium dioxide, barium sulfate, mica powder, iron oxide yellow.Titanium white
When pigments and fillers as water-repellent paint of powder, barium sulfate, mica powder, iron oxide yellow, weatherability and acid resistance are good.
The present invention also provides a kind of preparation methods of above-mentioned single-component polyurethane water-proof paint, match according to above-mentioned raw material
Fang Jinhang following step:
(1) non-hydrophobic type polyether polyol, the response type hydrophobing agent of hydroxyl, plasticizer, pigments and fillers are mixed, stirring rises
Temperature is dehydrated 2~3 hours at vacuum -0.01MPa to 100 DEG C~120 DEG C；
(2) 60~100 DEG C are reduced the temperature to, aliphatic isocyanates are added, is reacted 3~5 hours；Non-hydrophobic type polyethers is more
First alcohol is reacted with aliphatic isocyanates generates performed polymer, the response type hydrophobing agent of hydroxyl and the prepolymer reaction, wherein
Response type hydrophobing agent mainly passes through hydroxyl and prepolymer reaction.
(3) 30~50 DEG C are cooled to, remaining component in the composition of raw materials is added, stirs 1~2 hour, cools to 30
~40 DEG C, it is filled with inert gas shielding, discharging obtains single-component polyurethane water-proof paint.
The response type hydrophobing agent tool for preparing the hydroxyl in composition of raw materials of single-component polyurethane water-proof paint of the invention
There are hydrophobicity and the better compatibility with other components in composition of raw materials, so that the response type for improving hydroxyl is hydrophobic
The compatibility for other components in performed polymer and single-component polyurethane water-proof paint that agent and aliphatic isocyanates generate, and lead to
Chemical reaction is crossed, the response type hydrophobing agent of hydroxyl is integrated in the molecular structure of polyurethane, the precipitation of hydrophobing agent is avoided.
Since performed polymer has hydrophobicity, so that single-component polyurethane water-proof paint is provided with the anti-of hydrophobicity and hydroxyl
It answers type hydrophobing agent to be integrated in the molecular structure of polyurethane by chemical reaction, will never be precipitated, so that it is poly- to improve one-component
The hydrophobicity of urethane water-repellent paint and hydrophobic Stabilizing Materials, film hydrophobic effect are lasting.
The response type hydrophobing agent for preparing the hydroxyl in composition of raw materials of single-component polyurethane water-proof paint in the present invention
Improve the self-cleaning ability of water-repellent paint prepared therefrom.
Specific embodiment
Technical solution in order to enable those skilled in the art to better understand the present invention, With reference to embodiment to this
Invention is described in further detail.
Embodiment 1
The present embodiment provides a kind of single-component polyurethane water-proof paints, prepare the raw material of the single-component polyurethane water-proof paint
Formula includes: the response type hydrophobing agent of aliphatic isocyanates, non-hydrophobic type polyether polyol, catalyst, hydroxyl.
The present embodiment provides a kind of preparation methods of single-component polyurethane water-proof paint, carry out according to above-mentioned composition of raw materials
Following step:
(1) the response type hydrophobing agent of non-hydrophobic type polyether polyol, hydroxyl being mixed, stirring is warming up to 100 DEG C DEG C,
It is dehydrated 2.3 hours under vacuum -0.01MPa；
(2) 70 DEG C are reduced the temperature to, aliphatic isocyanates are added, is reacted 4.5 hours；
(3) 35 DEG C are cooled to, catalyst is added, is stirred 1.8 hours, is cooled to 38 DEG C, be filled with inert gas shielding, is discharged
Obtain single-component polyurethane water-proof paint.
The response type hydrophobing agent for preparing the hydroxyl in composition of raw materials of the single-component polyurethane water-proof paint of the present embodiment
Better compatibility with hydrophobicity and with other components in composition of raw materials, so that the response type for improving hydroxyl is dredged
The compatibility for other components in performed polymer and single-component polyurethane water-proof paint that aqua and aliphatic isocyanates generate, keeps away
The precipitation for having exempted from performed polymer, due to performed polymer have hydrophobicity so that single-component polyurethane water-proof paint be provided with it is hydrophobic
Property, due to the compatibility of performed polymer it is good and it is difficult be precipitated, to improve the hydrophobicity of single-component polyurethane water-proof paint and steady
Qualitative, the film-formation result of coating is good, and storage time is long.The raw material for preparing of single-component polyurethane water-proof paint in the present embodiment is matched
The response type hydrophobing agent of hydroxyl in side improves the self-cleaning ability of water-repellent paint prepared therefrom.
Embodiment 2
The present embodiment provides a kind of single-component polyurethane water-proof paints, prepare the raw material of the single-component polyurethane water-proof paint
Formula includes:
The aliphatic isocyanates be hexamethylene-diisocyanate and isophorone diisocyanate (weight ratio 2:
1), the non-hydrophobic type polyether polyol is polyether Glycols, and the latent curing agent is imine latent curing agent, the hydroxyl
Response type hydrophobing agent be triethoxy silanol.
The present embodiment provides a kind of preparation methods of single-component polyurethane water-proof paint, carry out according to above-mentioned composition of raw materials
Following step:
(1) the response type hydrophobing agent of non-hydrophobic type polyether polyol, hydroxyl is mixed, stirring is warming up to 120 DEG C, true
It is dehydrated 3 hours under sky -0.01MPa；
(2) 60 DEG C are reduced the temperature to, aliphatic isocyanates are added, is reacted 5 hours；
(3) 30 DEG C are cooled to, catalyst is added, is stirred 2 hours, is cooled to 35 DEG C, be filled with inert gas shielding, discharge
To single-component polyurethane water-proof paint.
The response type hydrophobing agent for preparing the hydroxyl in composition of raw materials of the single-component polyurethane water-proof paint of the present embodiment
Better compatibility with hydrophobicity and with other components in composition of raw materials, so that the response type for improving hydroxyl is dredged
The compatibility for other components in performed polymer and single-component polyurethane water-proof paint that aqua and aliphatic isocyanates generate, keeps away
The precipitation for having exempted from performed polymer, due to performed polymer have hydrophobicity so that single-component polyurethane water-proof paint be provided with it is hydrophobic
Property, due to the compatibility of performed polymer it is good and it is difficult be precipitated, to improve the hydrophobicity of single-component polyurethane water-proof paint and steady
Qualitative, the film-formation result of coating is good, and storage time is long.The raw material for preparing of single-component polyurethane water-proof paint in the present embodiment is matched
The response type hydrophobing agent of hydroxyl in side improves the self-cleaning ability of water-repellent paint prepared therefrom.
Embodiment 3
The present embodiment provides a kind of single-component polyurethane water-proof paints, prepare the raw material of the single-component polyurethane water-proof paint
Formula includes:
The aliphatic isocyanates are dicyclohexyl methyl hydride diisocyanate, and the non-hydrophobic type polyether polyol is poly-
Ether trihydroxylic alcohol, the latent curing agent are oxazolidine type latent curing agent, and the response type hydrophobing agent of the hydroxyl is triethoxysilicane
Pure and mild silicon-containing polyether polyalcohol.
The present embodiment provides a kind of preparation methods of single-component polyurethane water-proof paint, carry out according to above-mentioned composition of raw materials
Following step:
(1) the response type hydrophobing agent of non-hydrophobic type polyether polyol, hydroxyl is mixed, stirring is warming up to 110 DEG C, true
It is dehydrated 2 hours under sky -0.01MPa；
(2) 100 DEG C are reduced the temperature to, aliphatic isocyanates are added, is reacted 4 hours；
(3) 40 DEG C are cooled to, catalyst is added, is stirred 1 hour, is cooled to 30 DEG C, be filled with inert gas shielding, discharge
To single-component polyurethane water-proof paint.
Embodiment 4
The present embodiment provides a kind of single-component polyurethane water-proof paints, prepare the raw material of the single-component polyurethane water-proof paint
Formula includes:
The aliphatic isocyanates are hexamethylene-diisocyanate, and the non-hydrophobic type polyether polyol is polyethers three
The pure and mild polyethers tetrahydroxylic alcohol (weight ratio 3:4) of member, the latent curing agent are 2- isopropyl oxazolidine and 2,2- dihydro-oxazole alkane (weight
Amount is than being 2:1), the response type hydrophobing agent of the hydroxyl is fluorine-containing polyether glycol, and the non-reactive hydrophobing agent is organic
Siloxanes.
The present embodiment provides a kind of preparation methods of single-component polyurethane water-proof paint, carry out according to above-mentioned composition of raw materials
Following step:
(1) the response type hydrophobing agent of non-hydrophobic type polyether polyol, hydroxyl is mixed, stirring is warming up to 100 DEG C, true
It is dehydrated 2.5 hours under sky -0.01MPa；
(2) 80 DEG C are reduced the temperature to, aliphatic isocyanates are added, is reacted 3 hours；
(3) 50 DEG C are cooled to, catalyst, latent curing agent is added, is stirred 1.5 hours, is cooled to 40 DEG C, be filled with inert gas
Protection, discharging obtain single-component polyurethane water-proof paint.
Embodiment 5
The present embodiment provides a kind of single-component polyurethane water-proof paints, prepare the raw material of the single-component polyurethane water-proof paint
Formula includes:
The aliphatic isocyanates are isophorone diisocyanate, and the non-hydrophobic type polyether polyol is polyethers four
First alcohol, the latent curing agent are the ester type compound of 2,2- dihydro-N- ethoxy oxazolidine, and the response type of the hydroxyl is hydrophobic
Agent be fluorine silicon hydrophobing agent, the plasticizer be dioctyl phthalate and dibutyl phthalate (weight ratio 1:1),
The solvent is ethyl acetate, and the pigments and fillers are carbon black, and the ultraviolet absorber is triazines ultraviolet absorber, the catalysis
Agent is stannous octoate and isooctyl acid lead (weight ratio 2；1), the auxiliary agent is defoaming agent and levelling agent (weight ratio 2:3).
The present embodiment provides a kind of preparation methods of single-component polyurethane water-proof paint, carry out according to above-mentioned composition of raw materials
Following step:
(1) the response type hydrophobing agent of non-hydrophobic type polyether polyol, hydroxyl is mixed, stirring is warming up to 120 DEG C, true
It is dehydrated 2 hours under sky -0.01MPa；
(2) 90 DEG C are reduced the temperature to, aliphatic isocyanates are added, is reacted 5 hours；
(3) 30 DEG C are cooled to, other components in composition of raw materials are added, is stirred 1.5 hours, is cooled to 30 DEG C, be filled with lazy
Property gas shield, discharging obtain single-component polyurethane water-proof paint.
The response type hydrophobing agent for preparing the hydroxyl in composition of raw materials of the single-component polyurethane water-proof paint of the present embodiment
Better compatibility with hydrophobicity and with other components in composition of raw materials, so that the response type for improving hydroxyl is dredged
The compatibility for other components in performed polymer and single-component polyurethane water-proof paint that aqua and aliphatic isocyanates generate, keeps away
The precipitation for having exempted from performed polymer, due to performed polymer have hydrophobicity so that single-component polyurethane water-proof paint be provided with it is hydrophobic
Property, due to the compatibility of performed polymer it is good and it is difficult be precipitated, to improve the hydrophobicity of single-component polyurethane water-proof paint and steady
Qualitative, the film-formation result of coating is good, and storage time is long.The raw material for preparing of single-component polyurethane water-proof paint in the present embodiment is matched
The response type hydrophobing agent of hydroxyl in side improves the self-cleaning ability of water-repellent paint prepared therefrom.
Embodiment 6
The present embodiment provides a kind of single-component polyurethane water-proof paints, prepare the raw material of the single-component polyurethane water-proof paint
Formula includes:
The aliphatic isocyanates are dicyclohexyl methyl hydride diisocyanate, and the non-hydrophobic type polyether polyol is poly-
Ether trihydroxylic alcohol, the latent curing agent be 2- isopropyl-N- ethoxy-oxazolidine and imine latent curing agent (weight ratio 2:1),
The response type hydrophobing agent of the hydroxyl is fluorine-containing polyether glycol, and the plasticizer is diisononyl phthalate, described
Solvent is solvent naphtha, and the pigments and fillers are titanium dioxide, and the ultraviolet absorber is benzophenone class ultraviolet absorber and benzotriazole
Ultraviolet absorber (weight ratio 3:4), the catalyst are alicyclic ring amine tertiary amine, and the auxiliary agent is anti-settling agent.
The present embodiment provides a kind of preparation methods of single-component polyurethane water-proof paint, carry out according to above-mentioned composition of raw materials
Following step:
(1) the response type hydrophobing agent of non-hydrophobic type polyether polyol, hydroxyl is mixed, stirring is warming up to 110 DEG C, true
It is dehydrated 2.5 hours under sky -0.01MPa；
(2) 60 DEG C are reduced the temperature to, aliphatic isocyanates are added, is reacted 4 hours；
(3) 40 DEG C are cooled to, other components in composition of raw materials are added, is stirred 1 hour, is cooled to 35 DEG C, be filled with inertia
Gas shield, discharging obtain single-component polyurethane water-proof paint.
Embodiment 7
The present embodiment provides a kind of single-component polyurethane water-proof paints, prepare the raw material of the single-component polyurethane water-proof paint
Formula includes:
The aliphatic isocyanates are isophorone diisocyanate, and the non-hydrophobic type polyether polyol is polyethers two
First alcohol, the latent curing agent are 2,2- dihydro-oxazole alkane, and the response type hydrophobing agent of the hydroxyl is silicon-containing polyether polyalcohol, institute
Stating plasticizer is citrate, and the solvent is toluene and dimethylbenzene (weight ratio 5:3), and the pigments and fillers are for kaolin and again
Calcium (weight ratio 1:3), the ultraviolet absorber are salicylate type ultraviolet absorbent, and the catalyst is aromatic amine uncle
Amine, the auxiliary agent are coupling agent, and the non-reactive hydrophobing agent is silicone oil.
The present embodiment provides a kind of preparation methods of single-component polyurethane water-proof paint, carry out according to above-mentioned composition of raw materials
Following step:
(1) the response type hydrophobing agent of non-hydrophobic type polyether polyol, hydroxyl is mixed, stirring is warming up to 100 DEG C, true
It is dehydrated 3 hours under sky -0.01MPa；
(2) 100 DEG C are reduced the temperature to, aliphatic isocyanates are added, is reacted 3 hours；
(3) 50 DEG C are cooled to, other components in composition of raw materials are added, is stirred 2 hours, is cooled to 40 DEG C, be filled with inertia
Gas shield, discharging obtain single-component polyurethane water-proof paint.
Embodiment 8
The present embodiment provides a kind of single-component polyurethane water-proof paints, prepare the raw material of the single-component polyurethane water-proof paint
Formula includes:
The aliphatic isocyanates are isophorone diisocyanate (IPDI), and the non-hydrophobic type polyether polyol is
The polyether-tribasic alcohol (330N) of the polyether Glycols (2000D) of 25 parts by weight, 20 parts by weight, the latent curing agent are latent curing agent
2959, the response type hydrophobing agent of the hydroxyl is the loose polyethers SOVERMOL 750 of response type, and the plasticizer is chlorination stone
Wax, the solvent are 150# solvent naphtha, and the pigments and fillers are the coarse whiting of 20 parts by weight, the titanium dioxide of 20 parts by weight, 1 parts by weight
Iron oxide yellow, the ultraviolet absorber are ultraviolet absorber UV-P, and the catalyst is organotin catalysts T-12, and the auxiliary agent is
The defoaming agent of 0.5 parts by weight, the dispersing agent of 0.2 parts by weight, 0.1 parts by weight antioxidant, the non-reactive hydrophobing agent be it is non-
Response type hydrophobing agent XH-9004.
The present embodiment provides a kind of preparation methods of single-component polyurethane water-proof paint, carry out according to above-mentioned composition of raw materials
Following step:
(1) response type hydrophobing agent, plasticizer, pigments and fillers, the dispersing agent of non-hydrophobic type polyether polyol, hydroxyl are mixed
It closes, stirring is warming up to 100 DEG C, is dehydrated 2.5 hours at vacuum -0.01MPa；
(2) 20 DEG C are reduced the temperature to, aliphatic isocyanates are added, under 20 DEG C of stirrings, is reacted 2 hours；It will be warm
Degree rises to 85 DEG C, and the reaction was continued 3 hours；
(3) 35 DEG C are cooled to, remaining component in the composition of raw materials is added, is stirred 1.5 hours, is cooled to 40 DEG C, fill
Enter nitrogen protection, discharging obtains single-component polyurethane water-proof paint.
The response type hydrophobing agent for preparing the hydroxyl in composition of raw materials of the single-component polyurethane water-proof paint of the present embodiment
Better compatibility with hydrophobicity and with other components in composition of raw materials, so that the response type for improving hydroxyl is dredged
The compatibility for other components in performed polymer and single-component polyurethane water-proof paint that aqua and aliphatic isocyanates generate, keeps away
The precipitation for having exempted from performed polymer, due to performed polymer have hydrophobicity so that single-component polyurethane water-proof paint be provided with it is hydrophobic
Property, due to the compatibility of performed polymer it is good and it is difficult be precipitated, to improve the hydrophobicity of single-component polyurethane water-proof paint and steady
Qualitative, the film-formation result of coating is good, and storage time is long.The raw material for preparing of single-component polyurethane water-proof paint in the present embodiment is matched
The response type hydrophobing agent of hydroxyl in side improves the self-cleaning ability of water-repellent paint prepared therefrom.
Comparative example 1
This comparative example provides a kind of single-component polyurethane water-proof paint, prepares the raw material of the single-component polyurethane water-proof paint
Formula includes:
The aliphatic isocyanates are isophorone diisocyanate (IPDI), and the non-hydrophobic type polyether polyol is
The polyether-tribasic alcohol (330N) of the polyether Glycols (2000D) of 25 parts by weight, 20 parts by weight, the latent curing agent are latent curing agent
2959, the plasticizer is chlorinated paraffin, and the solvent is 150# solvent naphtha, and the pigments and fillers are the coarse whiting of 20 parts by weight, 20
The iron oxide yellow of the titanium dioxide of parts by weight, 1 parts by weight, the ultraviolet absorber are ultraviolet absorber UV-P, and the catalyst is organic
Tin catalyst T-12, the auxiliary agent be the defoaming agent of 0.5 parts by weight, the dispersing agent of 0.2 parts by weight, 0.1 parts by weight antioxidant,
The non-reactive hydrophobing agent is non-reactive hydrophobing agent XH-9004.
The present embodiment provides a kind of preparation methods of single-component polyurethane water-proof paint, carry out according to above-mentioned composition of raw materials
Following step:
(1) by non-hydrophobic type polyether polyol, plasticizer, pigments and fillers, dispersant, stirring is warming up to 100 DEG C, true
It is dehydrated 2.5 hours under sky -0.01MPa；
(2) 20 DEG C are reduced the temperature to, aliphatic isocyanates are added, under 20 DEG C of stirrings, is reacted 2 hours；It will be warm
Degree rises to 85 DEG C, and the reaction was continued 3 hours；
(3) 35 DEG C are cooled to, remaining component in the composition of raw materials is added, is stirred 1.5 hours, is cooled to 40 DEG C, fill
Enter nitrogen protection, discharging obtains single-component polyurethane water-proof paint.
Embodiment 9
The present embodiment provides a kind of single-component polyurethane water-proof paints, prepare the raw material of the single-component polyurethane water-proof paint
Formula includes:
The aliphatic isocyanates are hexamethylene diisocyanate (HDI), and the non-hydrophobic type polyether polyol is
The polyether-tribasic alcohol (330N) of the polyether Glycols (2000D) of 25 parts by weight, 20 parts by weight, the latent curing agent are latent curing agent
The response type hydrophobing agent of A-139, the hydroxyl are triethoxy silanol, and the plasticizer is chlorinated paraffin, and the solvent is
150# solvent naphtha, the pigments and fillers be the coarse whiting of 20 parts by weight, the titanium dioxide of 20 parts by weight, 1 parts by weight iron oxide yellow, it is described ultraviolet
Absorbent is ultraviolet absorber UV-P, and the catalyst is organotin catalysts T-12, and the auxiliary agent is the defoaming of 0.5 parts by weight
Agent, the dispersing agent of 0.2 parts by weight, 0.1 parts by weight antioxidant, the non-reactive hydrophobing agent for the non-reactive containing fluorine dredge
Aqua.
The present embodiment provides a kind of preparation methods of single-component polyurethane water-proof paint, carry out according to above-mentioned composition of raw materials
Following step:
(1) response type hydrophobing agent, plasticizer, pigments and fillers, the dispersing agent of non-hydrophobic type polyether polyol, hydroxyl are mixed
It closes, stirring is warming up to 110 DEG C, is dehydrated 2 hours at vacuum -0.01MPa；
(2) 10 DEG C are reduced the temperature to, aliphatic isocyanates are added, under 10 DEG C of stirrings, is reacted 1 hour；It will be warm
Degree rises to 100 DEG C, and the reaction was continued 2.5 hours；
(3) 30 DEG C are cooled to, remaining component in the composition of raw materials is added, is stirred 2 hours, is cooled to 35 DEG C, be filled with
Nitrogen protection, discharging obtain single-component polyurethane water-proof paint.
Embodiment 10
The present embodiment provides a kind of single-component polyurethane water-proof paints, prepare the raw material of the single-component polyurethane water-proof paint
Formula includes:
The aliphatic isocyanates are isophorone diisocyanate (IPDI), and the non-hydrophobic type polyether polyol is
The polyether-tribasic alcohol (330N) of the polyether Glycols (2000D) of 25 parts by weight, 20 parts by weight, the latent curing agent are latent curing agent
The response type hydrophobing agent of Incozol 4, the hydroxyl are fluorine-containing polyether glycol ZDOL, and the plasticizer is chlorinated paraffin,
The solvent be 150# solvent naphtha, the pigments and fillers be the coarse whiting of 20 parts by weight, the titanium dioxide of 20 parts by weight, 1 parts by weight iron
Huang, the ultraviolet absorber are ultraviolet absorber UV-P, and the catalyst is organotin catalysts T-12, and the auxiliary agent is 0.5
The defoaming agent of parts by weight, the dispersing agent of 0.2 parts by weight, 0.1 parts by weight antioxidant.
The present embodiment provides a kind of preparation methods of single-component polyurethane water-proof paint, carry out according to above-mentioned composition of raw materials
Following step:
(1) response type hydrophobing agent, plasticizer, pigments and fillers, the dispersing agent of non-hydrophobic type polyether polyol, hydroxyl are mixed
It closes, stirring is warming up to 120 DEG C, is dehydrated 3 hours at vacuum -0.01MPa；
(2) 35 DEG C are reduced the temperature to, aliphatic isocyanates are added, under 35 DEG C of stirrings, is reacted 1.5 hours；It will
Temperature rises to 70 DEG C, and the reaction was continued 2 hours；
(3) 50 DEG C are cooled to, remaining component in the composition of raw materials is added, is stirred 1 hour, is cooled to 30 DEG C, be filled with
Nitrogen protection, discharging obtain single-component polyurethane water-proof paint.
The single-component polyurethane water-proof paint of embodiment 8~10 and comparative example 1 is subjected to film, by national standard GB/T
19250-2013 is tested, and performance is shown in Table 1:
Table 1
Single-component polyurethane water-proof paint in embodiment 8~10 is produced as shown in Table 1 in use, water-repellent paint is constructed
Moral character can meet GB/T 19250-2013 technical indicator, and good weatherability, surface tension is low, and environmental protection, use is safe, be suitable for room
The waterproof of the exsertion parts such as face, bridge, and there is good decorative effect, do not need any finishing coat protection.Embodiment 8 and comparison
Example 1 compares, and as shown in Table 1, the performance of the coating of embodiment 8 is far superior to the coating in comparative example 1, in comparative example 1
Because non-reactive hydrophobing agent migrates, surface tension rises obvious and easily stains coating.
It is understood that the principle that embodiment of above is intended to be merely illustrative of the present and the exemplary implementation that uses
Mode, however the present invention is not limited thereto.For those skilled in the art, essence of the invention is not being departed from
In the case where mind and essence, various changes and modifications can be made therein, these variations and modifications are also considered as protection scope of the present invention.
Claims (7)
1. a kind of single-component polyurethane water-proof paint, which is characterized in that the raw material for preparing the single-component polyurethane water-proof paint is matched
Side includes: the response type hydrophobing agent of aliphatic isocyanates, non-hydrophobic type polyether polyol, catalyst, hydroxyl, described in preparation
The composition of raw materials of single-component polyurethane water-proof paint further include: latent curing agent, plasticizer, solvent, pigments and fillers, ultraviolet absorber,
One or more of auxiliary agent, the solvent are one of toluene, dimethylbenzene, solvent naphtha, ethyl acetate, butyl acetate or several
Kind, the aliphatic isocyanates are 5~15 parts by weight；The non-hydrophobic type polyether polyol is 1~50 parts by weight；It is described to urge
Agent is 0.02~1 parts by weight；The response type hydrophobing agent is 2~20 parts by weight；The latent curing agent is 0.2~5 parts by weight；
The plasticizer is 5~30 parts by weight；The solvent is 5~30 parts by weight；The pigments and fillers are 10~80 parts by weight；The purple
Outer absorbent is 0.1~5 parts by weight；The auxiliary agent is 0.1~2 parts by weight.
2. single-component polyurethane water-proof paint according to claim 1, which is characterized in that the response type hydrophobing agent be containing
One or more of Si hydrophobic agent, fluorine-containing hydrophobing agent, fluorine silicon hydrophobing agent, fluorine-containing polyether glycol.
3. single-component polyurethane water-proof paint according to claim 2, which is characterized in that the siliceous hydrophobing agent is three second
Oxygroup silanol and/or silicon-containing polyether polyalcohol.
4. single-component polyurethane water-proof paint according to claim 1, which is characterized in that prepare the monocomponent polyurethane
The composition of raw materials of water-repellent paint further include: non-reactive hydrophobing agent, the non-reactive hydrophobing agent are 0.2~2 parts by weight.
5. single-component polyurethane water-proof paint according to any one of claims 1 to 3, which is characterized in that
The aliphatic isocyanates are hexamethylene-diisocyanate, isophorone diisocyanate, dicyclohexyl methyl hydride two
One or more of isocyanates；
The non-hydrophobic type polyether polyol is one or more of polyether Glycols, polyether-tribasic alcohol, polyethers tetrahydroxylic alcohol；
The catalyst be dibutyl tin dilaurate, stannous octoate, isooctyl acid lead, fatty amines tertiary amine, alicyclic ring amine tertiary amine,
One or more of aromatic amine tertiary amine, alcamines tertiary amine, ammonium salt class tertiary amine.
6. single-component polyurethane water-proof paint according to claim 1, which is characterized in that
The latent curing agent is imine latent curing agent and/or oxazolidine type latent curing agent；
The plasticizer is dioctyl phthalate, dibutyl phthalate, diisononyl phthalate, chlorination stone
One or more of wax, citrate；
The pigments and fillers are carbon black, titanium dioxide, iron oxide yellow, kaolin, cement, coarse whiting, barium sulfate, magnesia, calcium oxide, silicon ash
One or more of stone, silicon powder, mica powder, talcum powder；
The ultraviolet absorber is salicylate type ultraviolet absorbent, benzophenone class ultraviolet absorber, benzotriazole UV absorption
One or more of agent, group-substituted acrylonitrile ultraviolet absorber, triazines ultraviolet absorber, hindered amines ultraviolet absorber；
The auxiliary agent is one or more of defoaming agent, dispersing agent, levelling agent, anti-settling agent, coupling agent, antioxidant, retarder.
7. a kind of preparation method of single-component polyurethane water-proof paint described in claim 1~6 any one, feature exist
According to the composition of raw materials progress following step of claim 1~6 any one:
(1) non-hydrophobic type polyether polyol, the response type hydrophobing agent of hydroxyl, plasticizer, pigments and fillers are mixed, stirring is warming up to
It 100 DEG C~120 DEG C, is dehydrated 2~3 hours at vacuum -0.01MPa；
(2) 60~100 DEG C are reduced the temperature to, aliphatic isocyanates are added, is reacted 3~5 hours；
(3) 30~50 DEG C are cooled to, remaining component in the composition of raw materials is added, stirs 1~2 hour, cools to 30~40
DEG C, it is filled with inert gas shielding, discharging obtains single-component polyurethane water-proof paint.
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| CN107434381B (en) * | 2016-05-27 | 2021-01-05 | 立邦涂料（中国）有限公司 | Special floor coating waterborne polyurethane mortar composite coating and preparation method and application thereof |
| CN107118179B (en) * | 2017-05-05 | 2020-09-22 | 北京东方雨虹防水技术股份有限公司 | Imine compound, preparation method and application thereof, and single-component polyurethane waterproof coating |
| CN108117832B (en) * | 2018-01-03 | 2020-04-10 | 青岛爱尔家佳新材料股份有限公司 | Dual-curing type one-component polyurea coating and preparation method thereof |
| CN108277892A (en) * | 2018-01-24 | 2018-07-13 | 东莞市粤惠建筑工程技术咨询有限公司 | A kind of buildings waterproof construction method |
| CN108753144A (en) * | 2018-05-28 | 2018-11-06 | 福建中意铁科新型材料有限公司 | A kind of exposed conveying appliance polyurethane water-proof paint and preparation method thereof |
| CN109111834A (en) * | 2018-07-27 | 2019-01-01 | 德州科顺建筑材料有限公司 | A kind of one-component polyurea modified polyurethane water-proof paint and preparation method thereof |
| CN109679472A (en) * | 2018-12-29 | 2019-04-26 | 北京东方雨虹防水技术股份有限公司 | A kind of one pack system polyamides urea waterproof coating and preparation method thereof |
| CN110511661A (en) * | 2019-08-16 | 2019-11-29 | 无锡庄周新材料科技有限公司 | A kind of monocomponent polyurethane light-shielding agent and preparation method thereof |
| CN111073209B (en) * | 2019-12-22 | 2022-09-30 | 上海锦湖日丽塑料有限公司 | High-hydrophobicity PC/ABS alloy and preparation method thereof |
| CN111592821A (en) * | 2020-06-22 | 2020-08-28 | 安徽三棵树涂料有限公司 | Odorless polyurethane waterproof coating and preparation method thereof |
| CN112552811B (en) * | 2020-12-12 | 2022-02-11 | 北京宇阳泽丽防水材料有限责任公司 | Environment-friendly one-component polyurethane waterproof coating and preparation method thereof |
| TWI762175B (en) * | 2021-02-02 | 2022-04-21 | 臺灣永光化學工業股份有限公司 | Self-healing resin composition and use thereof |
| CN113088136A (en) * | 2021-05-20 | 2021-07-09 | 广州美术学院 | Hydrophobic antifouling paint and preparation method and application thereof |
| CN113249023A (en) * | 2021-05-21 | 2021-08-13 | 湖北九阳防水材料科技有限公司 | Environment-friendly single-component polyurethane waterproof coating and preparation method thereof |
| CN115260439B (en) * | 2022-08-11 | 2023-09-22 | 山东一诺威新材料有限公司 | Super-hydrophobic polyurethane material for automobile paint protective film and preparation method thereof |
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| CN100567357C (en) * | 2007-03-30 | 2009-12-09 | 东华大学 | A kind of preparation method of fluorinated water based polyurethane |
| CN102585685A (en) * | 2011-01-14 | 2012-07-18 | 周太峰 | Single-component polyurethane waterproof paint and preparation process thereof |
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