CN109370412A - A kind of environment-friendly water-based polyurethane coating - Google Patents
A kind of environment-friendly water-based polyurethane coating Download PDFInfo
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- CN109370412A CN109370412A CN201811237903.6A CN201811237903A CN109370412A CN 109370412 A CN109370412 A CN 109370412A CN 201811237903 A CN201811237903 A CN 201811237903A CN 109370412 A CN109370412 A CN 109370412A
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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
- C08G18/67—Unsaturated compounds having active hydrogen
- C08G18/671—Unsaturated compounds having only one group containing active hydrogen
- C08G18/672—Esters of acrylic or alkyl acrylic acid having only one group containing active hydrogen
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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
- C09D175/14—Polyurethanes having carbon-to-carbon unsaturated bonds
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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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/16—Antifouling paints; Underwater paints
- C09D5/1687—Use of special additives
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3045—Sulfates
- C08K2003/3081—Aluminum sulfate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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Abstract
The invention discloses a kind of environment-friendly water-based polyurethane coatings, it is related to technical field of aqueous paint, is made of following component: four silanol sodium salt modified polyurethane emulsions, nanometer calcium carbonate, diatom ooze, hollow glass micropearl, trimethyl silicane potassium alcoholate, tertiary ethylene carbonate, inorganic salts powder, wetting agent, defoaming agent, dispersing agent, thickener；Environment-friendly water-based polyurethane coating prepared by the present invention has excellent abrasion resistance, stain resistant and artificial ageing resistance performance.
Description
Technical field
The invention belongs to technical field of aqueous paint, and in particular to a kind of environment-friendly water-based polyurethane coating.
Background technique
Oil paint is due to itself containing solvent at present, and when use will use the big of containing benzene, alcohols, esters or ketone
Organic solvent diluting is measured, the health hazard of pollution and human body to environment is very big, and is inflammable and explosive product, to production and construction
There are latent fire hazards in place, higher and higher to the needs of water paint but aqueous with the raising that people require quality of life
Although the coating feature of environmental protection is good, hardness is low after solidification, and resistance to tearing is poor.
Summary of the invention
The purpose of the present invention is being directed to existing problem, a kind of environment-friendly water-based polyurethane coating is provided.
The present invention is achieved by the following technical solutions:
A kind of environment-friendly water-based polyurethane coating, is made of following component by weight: four silanol sodium salt modified polyurethane emulsions
93-98, nanometer calcium carbonate 18-25, diatom ooze 35-39, hollow glass micropearl 5.2-6.4, trimethyl silicane potassium alcoholate 0.12-0.15,
Tertiary ethylene carbonate 3-6, inorganic salts powder 1.8-2.5, wetting agent 0.6-1, defoaming agent 0.5-1.5, dispersing agent 0.5-1.2, increase
Thick dose of 0.5-1.
Further, the four silanols sodium salt modified polyurethane emulsion the preparation method comprises the following steps:
(1) in organic solvent by silane, sodium hydroxide, deionized water dissolving, anti-with the stirring of 150r/min revolving speed at 79 DEG C
It after answering 1.5 hours, is cooled to room temperature, with 1500r/min revolving speed stirring 6 hours, then through revolving removing solvent, four sodium silanolates is made
Salt, it is spare by vacuum drying；
(2) after mixing plant polyatomic alcohol and diisocyanate, it is added in reaction kettle, is then added into reaction kettle organic molten
Agent stirs 40min with 200r/min revolving speed at 80 DEG C, then adds dibutyl tin dilaurate, and heat preservation carries out anti-at 80 DEG C
It answers 3 hours, obtains performed polymer mixed liquor, hydrophilic chain extender and hydroxypropyl acrylate, four sodium silanolates are added into performed polymer mixed liquor
Salt carries out polymerization reaction, and polymeric reaction temperature is 78 DEG C, and the reaction time is 5 hours, obtains condensate mixed liquor, mixes to condensate
Liquid adds rare earth chloride, stirs evenly, and stands 1 hour, is then neutralized to neutrality with triethylamine again, then adds deionized water shearing
Emulsify to obtain polyaminoester emulsion, remove the organic solvent in polyaminoester emulsion to get.
Further, step (1) silane, sodium hydroxide, deionized water mixing molar ratio are 1.2:2.5:1.8.
Further, step (1) and step (2) organic solvent are n,N-Dimethylformamide.
Further, step (2) plant polyatomic alcohol and diisocyanate mixing molar ratio are 1:1.
Further, step (2) the dibutyl tin dilaurate additive amount is the 0.5% of plant polyatomic alcohol quality.
Further, step (2) hydrophilic chain extender and hydroxypropyl acrylate, four silanol sodium salts and plant polyatomic alcohol are mixed
Conjunction molar ratio is 1.5:80::0.5:2.8.
Further, step (2) the rare earth chloride additive amount is the 0.08% of condensate mixed liquor quality, the chlorination
Rare earth is cerium chloride.
Further, the inorganic salts powder is that sodium citrate and aluminum aluminum sulfate are mixed by 3:1 mass ratio, is soaked
Agent is propylene glycol, and defoaming agent is organic silicon defoamer, and dispersing agent is polyethylene glycol 200, and thickener is sodium cellulose glycolate.
The utility model has the advantages that the present invention is using four silanol sodium salt modified polyurethane emulsions as basic film forming matter, what is contained is a large amount of
Active group, the not only good dispersion between filler, but also hardness of film is high after solidifying, tearing-resistant performance is fabulous, can
The surface tension for reducing coating film enables coating to occur film cissing phenomenon with soaking substrate, reduction well, prevent due to quilt
Protection is unclean and keeps coating uneven；By cooperateing with the effect of each ingredient, respective deficiency can be not only made up, filming performance is excellent
It is different, and can effectively reduce adjacent inter-chain action, increasing gap, flexility is excellent, and tearing-resistant performance is good, and pollution-free,
It is free from environmental pollution；Nanometer calcium carbonate and diatom ooze can enter inside above-mentioned film forming layer, and with active group inside film forming matter
It preferably combines, under the action of with four silanol sodium salt modified polyurethane emulsion solidification process, is combined between other components, Gu
Change very high density, hardness further enhances, and has excellent stain resistant.The present invention passes through with four silanol sodium salt modified polyurethanes
Lotion makes the inside and outside rate of drying of coating obtained by the present invention reach high unity as basic film forming matter, while hardness, wear-resisting
Property and adhesive force further enhance, have excellent artificial weathering ageing resistance's energy.Gained paint film of the invention is plentiful, has good
Decoration functions and protection of environment function, all have preferable effect in smell, environmental protection, aspect of performance, smell is pure and fresh.The present invention
Water paint does not injure human body, can effective traditional water paint wall basic level is insecure causes to be coated on wall
Cracking that coating occurs, the problem of falling off, can be avoided and repeatedly overhaul, have high economic benefit, can be widely applied for
Field of constructional ornament.
Specific embodiment
Embodiment 1
A kind of environment-friendly water-based polyurethane coating, is made of following component by weight: four silanol sodium salt modified polyurethane emulsions
93, nanometer calcium carbonate 18, diatom ooze 35, hollow glass micropearl 5.2, trimethyl silicane potassium alcoholate 0.12, tertiary ethylene carbonate 3, inorganic
Salt powder 1.8, wetting agent 0.6, defoaming agent 0.5, dispersing agent 0.5, thickener 0.5.
Further, the four silanols sodium salt modified polyurethane emulsion the preparation method comprises the following steps:
(1) in organic solvent by silane, sodium hydroxide, deionized water dissolving, anti-with the stirring of 150r/min revolving speed at 79 DEG C
It after answering 1.5 hours, is cooled to room temperature, with 1500r/min revolving speed stirring 6 hours, then through revolving removing solvent, four sodium silanolates is made
Salt, it is spare by vacuum drying；
(2) after mixing plant polyatomic alcohol and diisocyanate, it is added in reaction kettle, is then added into reaction kettle organic molten
Agent stirs 40min with 200r/min revolving speed at 80 DEG C, then adds dibutyl tin dilaurate, and heat preservation carries out anti-at 80 DEG C
It answers 3 hours, obtains performed polymer mixed liquor, hydrophilic chain extender and hydroxypropyl acrylate, four sodium silanolates are added into performed polymer mixed liquor
Salt carries out polymerization reaction, and polymeric reaction temperature is 78 DEG C, and the reaction time is 5 hours, obtains condensate mixed liquor, mixes to condensate
Liquid adds rare earth chloride, stirs evenly, and stands 1 hour, is then neutralized to neutrality with triethylamine again, then adds deionized water shearing
Emulsify to obtain polyaminoester emulsion, remove the organic solvent in polyaminoester emulsion to get.
Further, step (1) silane, sodium hydroxide, deionized water mixing molar ratio are 1.2:2.5:1.8.
Further, step (1) and step (2) organic solvent are n,N-Dimethylformamide.
Further, step (2) plant polyatomic alcohol and diisocyanate mixing molar ratio are 1:1.
Further, step (2) the dibutyl tin dilaurate additive amount is the 0.5% of plant polyatomic alcohol quality.
Further, step (2) hydrophilic chain extender and hydroxypropyl acrylate, four silanol sodium salts and plant polyatomic alcohol are mixed
Conjunction molar ratio is 1.5:80::0.5:2.8.
Further, step (2) the rare earth chloride additive amount is the 0.08% of condensate mixed liquor quality, the chlorination
Rare earth is cerium chloride.
Further, the inorganic salts powder is that sodium citrate and aluminum aluminum sulfate are mixed by 3:1 mass ratio, is soaked
Agent is propylene glycol, and defoaming agent is organic silicon defoamer, and dispersing agent is polyethylene glycol 200, and thickener is sodium cellulose glycolate.
Embodiment 2
A kind of environment-friendly water-based polyurethane coating, is made of following component by weight: four silanol sodium salt modified polyurethane emulsions
98, nanometer calcium carbonate 25, diatom ooze 39, hollow glass micropearl 6.4, trimethyl silicane potassium alcoholate 0.15, tertiary ethylene carbonate 6, inorganic
Salt powder 2.5, wetting agent 1, defoaming agent 1.5, dispersing agent 1.2, thickener 1.
Further, the four silanols sodium salt modified polyurethane emulsion the preparation method comprises the following steps:
(1) in organic solvent by silane, sodium hydroxide, deionized water dissolving, anti-with the stirring of 150r/min revolving speed at 79 DEG C
It after answering 1.5 hours, is cooled to room temperature, with 1500r/min revolving speed stirring 6 hours, then through revolving removing solvent, four sodium silanolates is made
Salt, it is spare by vacuum drying；
(2) after mixing plant polyatomic alcohol and diisocyanate, it is added in reaction kettle, is then added into reaction kettle organic molten
Agent stirs 40min with 200r/min revolving speed at 80 DEG C, then adds dibutyl tin dilaurate, and heat preservation carries out anti-at 80 DEG C
It answers 3 hours, obtains performed polymer mixed liquor, hydrophilic chain extender and hydroxypropyl acrylate, four sodium silanolates are added into performed polymer mixed liquor
Salt carries out polymerization reaction, and polymeric reaction temperature is 78 DEG C, and the reaction time is 5 hours, obtains condensate mixed liquor, mixes to condensate
Liquid adds rare earth chloride, stirs evenly, and stands 1 hour, is then neutralized to neutrality with triethylamine again, then adds deionized water shearing
Emulsify to obtain polyaminoester emulsion, remove the organic solvent in polyaminoester emulsion to get.
Further, step (1) silane, sodium hydroxide, deionized water mixing molar ratio are 1.2:2.5:1.8.
Further, step (1) and step (2) organic solvent are n,N-Dimethylformamide.
Further, step (2) plant polyatomic alcohol and diisocyanate mixing molar ratio are 1:1.
Further, step (2) the dibutyl tin dilaurate additive amount is the 0.5% of plant polyatomic alcohol quality.
Further, step (2) hydrophilic chain extender and hydroxypropyl acrylate, four silanol sodium salts and plant polyatomic alcohol are mixed
Conjunction molar ratio is 1.5:80::0.5:2.8.
Further, step (2) the rare earth chloride additive amount is the 0.08% of condensate mixed liquor quality, the chlorination
Rare earth is cerium chloride.
Further, the inorganic salts powder is that sodium citrate and aluminum aluminum sulfate are mixed by 3:1 mass ratio, is soaked
Agent is propylene glycol, and defoaming agent is organic silicon defoamer, and dispersing agent is polyethylene glycol 200, and thickener is sodium cellulose glycolate.
Embodiment 3
A kind of environment-friendly water-based polyurethane coating, is made of following component by weight: four silanol sodium salt modified polyurethane emulsions
95, nanometer calcium carbonate 22, diatom ooze 36, hollow glass micropearl 5.8, trimethyl silicane potassium alcoholate 0.13, tertiary ethylene carbonate 5, inorganic
Salt powder 2.1, wetting agent 0.8, defoaming agent 0.9, dispersing agent 0.6, thickener 0.8.
Further, the four silanols sodium salt modified polyurethane emulsion the preparation method comprises the following steps:
(1) in organic solvent by silane, sodium hydroxide, deionized water dissolving, anti-with the stirring of 150r/min revolving speed at 79 DEG C
It after answering 1.5 hours, is cooled to room temperature, with 1500r/min revolving speed stirring 6 hours, then through revolving removing solvent, four sodium silanolates is made
Salt, it is spare by vacuum drying；
(2) after mixing plant polyatomic alcohol and diisocyanate, it is added in reaction kettle, is then added into reaction kettle organic molten
Agent stirs 40min with 200r/min revolving speed at 80 DEG C, then adds dibutyl tin dilaurate, and heat preservation carries out anti-at 80 DEG C
It answers 3 hours, obtains performed polymer mixed liquor, hydrophilic chain extender and hydroxypropyl acrylate, four sodium silanolates are added into performed polymer mixed liquor
Salt carries out polymerization reaction, and polymeric reaction temperature is 78 DEG C, and the reaction time is 5 hours, obtains condensate mixed liquor, mixes to condensate
Liquid adds rare earth chloride, stirs evenly, and stands 1 hour, is then neutralized to neutrality with triethylamine again, then adds deionized water shearing
Emulsify to obtain polyaminoester emulsion, remove the organic solvent in polyaminoester emulsion to get.
Further, step (1) silane, sodium hydroxide, deionized water mixing molar ratio are 1.2:2.5:1.8.
Further, step (1) and step (2) organic solvent are n,N-Dimethylformamide.
Further, step (2) plant polyatomic alcohol and diisocyanate mixing molar ratio are 1:1.
Further, step (2) the dibutyl tin dilaurate additive amount is the 0.5% of plant polyatomic alcohol quality.
Further, step (2) hydrophilic chain extender and hydroxypropyl acrylate, four silanol sodium salts and plant polyatomic alcohol are mixed
Conjunction molar ratio is 1.5:80::0.5:2.8.
Further, step (2) the rare earth chloride additive amount is the 0.08% of condensate mixed liquor quality, the chlorination
Rare earth is cerium chloride.
Further, the inorganic salts powder is that sodium citrate and aluminum aluminum sulfate are mixed by 3:1 mass ratio, is soaked
Agent is propylene glycol, and defoaming agent is organic silicon defoamer, and dispersing agent is polyethylene glycol 200, and thickener is sodium cellulose glycolate.
Comparative example 1: it is only that four silanol sodium salt modified polyurethane emulsions replace with unmodified polyurethane with the difference of embodiment 1
Lotion, using application number: the polyaminoester emulsion of 201410413410.9 preparations.
Comparative example 2: it is only that with the difference of embodiment 1 and four silanol sodium salt modified polyurethane emulsions is replaced with into application number:
201110251188.3 modified polyurethane emulsion.
Examination criteria: it is detected by standard GB/T/T 9755-2001 exterior wall coating material of synthetic resin emulsion method, specifically
Correlation data is as shown in table 1 below:
Table 1
| Embodiment mean value | Comparative example 1 | Comparative example 2 | |
| Alkali resistance (48h) | It is without exception | There is exception | There is exception |
| Abrasion resistance/time | 2863 | 2098 | 2215 |
| Stain resistant (white light color/%≤15) | 10 | 22 | 19 |
| Resistance to artificial weathering aging (600h) | It is not blistering not peel off flawless | Blistering, which is peeled off, crackle | Crackle has not been peeled off in blistering |
As can be seen from Table 1, environment-friendly water-based polyurethane coating prepared by the present invention have excellent abrasion resistance, stain resistant and
Artificial ageing resistance performance.
Claims (9)
1. a kind of environment-friendly water-based polyurethane coating, which is characterized in that be made by weight of following component: four silanol sodium salts change
Property polyaminoester emulsion 93-98, nanometer calcium carbonate 18-25, diatom ooze 35-39, hollow glass micropearl 5.2-6.4, trimethyl silanol
Potassium 0.12-0.15, tertiary ethylene carbonate 3-6, inorganic salts powder 1.8-2.5, wetting agent 0.6-1, defoaming agent 0.5-1.5, dispersion
Agent 0.5-1.2, thickener 0.5-1.
2. a kind of environment-friendly water-based polyurethane coating as described in claim 1, which is characterized in that the four silanols sodium salt is modified poly-
Urethane emulsion preparation method are as follows:
(1) in organic solvent by silane, sodium hydroxide, deionized water dissolving, anti-with the stirring of 150r/min revolving speed at 79 DEG C
It after answering 1.5 hours, is cooled to room temperature, with 1500r/min revolving speed stirring 6 hours, then through revolving removing solvent, four sodium silanolates is made
Salt, it is spare by vacuum drying；
(2) after mixing plant polyatomic alcohol and diisocyanate, it is added in reaction kettle, is then added into reaction kettle organic molten
Agent stirs 40min with 200r/min revolving speed at 80 DEG C, then adds dibutyl tin dilaurate, and heat preservation carries out anti-at 80 DEG C
It answers 3 hours, obtains performed polymer mixed liquor, hydrophilic chain extender and hydroxypropyl acrylate, four sodium silanolates are added into performed polymer mixed liquor
Salt carries out polymerization reaction, and polymeric reaction temperature is 78 DEG C, and the reaction time is 5 hours, obtains condensate mixed liquor, mixes to condensate
Liquid adds rare earth chloride, stirs evenly, and stands 1 hour, is then neutralized to neutrality with triethylamine again, then adds deionized water shearing
Emulsify to obtain polyaminoester emulsion, remove the organic solvent in polyaminoester emulsion to get.
3. a kind of environment-friendly water-based polyurethane coating as claimed in claim 2, which is characterized in that step (1) silane, hydrogen-oxygen
Change sodium, deionized water mixing molar ratio is 1.2:2.5:1.8.
4. a kind of environment-friendly water-based polyurethane coating as claimed in claim 2, which is characterized in that step (1) and step (2) are described
Organic solvent is N,N-dimethylformamide.
5. a kind of environment-friendly water-based polyurethane coating as claimed in claim 2, which is characterized in that step (2) described plant is polynary
Pure and mild diisocyanate mixing molar ratio is 1:1.
6. a kind of environment-friendly water-based polyurethane coating as claimed in claim 2, which is characterized in that step (2) described tin dilaurate
Dibutyl tin additive amount is the 0.5% of plant polyatomic alcohol quality.
7. a kind of environment-friendly water-based polyurethane coating as claimed in claim 2, which is characterized in that step (2) the hydrophilic chain extension
It is 1.5:80::0.5:2.8 that agent and hydroxypropyl acrylate, four silanol sodium salts, which mix molar ratio with plant polyatomic alcohol,.
8. a kind of environment-friendly water-based polyurethane coating as claimed in claim 2, which is characterized in that step (2) described rare earth chloride
Additive amount is the 0.08% of condensate mixed liquor quality, and the rare earth chloride is cerium chloride.
9. a kind of environment-friendly water-based polyurethane coating as described in claim 1, which is characterized in that the inorganic salts powder is lemon
Sour sodium and aluminum aluminum sulfate are mixed by 3:1 mass ratio, and wetting agent is propylene glycol, and defoaming agent is organic silicon defoamer, dispersion
Agent is polyethylene glycol 200, and thickener is sodium cellulose glycolate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811237903.6A CN109370412A (en) | 2018-10-23 | 2018-10-23 | A kind of environment-friendly water-based polyurethane coating |
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| CN201811237903.6A CN109370412A (en) | 2018-10-23 | 2018-10-23 | A kind of environment-friendly water-based polyurethane coating |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110818325A (en) * | 2019-05-24 | 2020-02-21 | 北京绿德康环保科技有限公司 | Salt coat composition for building, salt slurry for building and application of salt slurry |
| CN115043670A (en) * | 2022-06-24 | 2022-09-13 | 西安交通大学 | Reinforcing and re-pasting method for ceramic colored drawing cultural relic colored drawing layer |
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2018
- 2018-10-23 CN CN201811237903.6A patent/CN109370412A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110818325A (en) * | 2019-05-24 | 2020-02-21 | 北京绿德康环保科技有限公司 | Salt coat composition for building, salt slurry for building and application of salt slurry |
| CN115043670A (en) * | 2022-06-24 | 2022-09-13 | 西安交通大学 | Reinforcing and re-pasting method for ceramic colored drawing cultural relic colored drawing layer |
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