CN111647332A - Water-based paint for tower crane and preparation method thereof - Google Patents
Water-based paint for tower crane and preparation method thereof Download PDFInfo
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- CN111647332A CN111647332A CN201910159256.XA CN201910159256A CN111647332A CN 111647332 A CN111647332 A CN 111647332A CN 201910159256 A CN201910159256 A CN 201910159256A CN 111647332 A CN111647332 A CN 111647332A
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- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
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- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
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Abstract
The invention provides water-based paint for a tower crane and a preparation method thereof, wherein the water-based paint is prepared from the following components in parts by weight: 40-50 parts of hydroxypropyl phosphate based fluorine-containing acrylic copolymer, 5-10 parts of ethylene diamine tetramethylene phosphonic acid modified polyethylene glycol, 1-5 parts of metal organic framework, 1-5 parts of hepta (6-amino-6-deoxy) beta-cyclodextrin, 10-20 parts of water, 15-25 parts of filler, 1-3 parts of film-forming assistant, 1-3 parts of emulsifier and 1-3 parts of flatting agent. The invention also discloses a preparation method of the water paint for the tower crane. The water paint for the tower crane disclosed by the invention has the advantages of low preparation cost, more excellent comprehensive performance, good flame-retardant and heat-insulating effects, excellent water resistance, alkali resistance, wear resistance and weather resistance, small influence on the environment, safety in use, greenness and environmental friendliness.
Description
Technical Field
The invention relates to the technical field of paint vehicles, and particularly relates to water paint for a tower crane and a preparation method thereof.
Background
With the rapid development of economy and the gradual rise of living standard of people, various major construction projects come after the beginning, and the use of a tower crane (a tower crane for short) cannot be separated behind the construction of the major construction projects. The tower crane is one of essential important equipments in large-scale building engineering such as high-rise or super high-rise civil buildings, bridge hydraulic engineering, large-span industrial factory buildings, high and large chimneys and silos constructed by adopting a slip film method, is a mark of equipment level of construction enterprises, and is a key for improving engineering project management level and ensuring safety progress and economic benefit.
The tower crane is common building engineering equipment made of metal materials, and the prepared metal materials are easy to corrode and rust in a long-term use process, so that the service life of the tower crane is shortened, meanwhile, the safety of builders is threatened, and the production cost of construction contract enterprises is increased. The prior art approach to this problem is to apply paint to the surface of the tower crane. However, most of the prior art tower crane paints are solvent-based paints, and these paints contain a large amount of organic solvents, and these organic solvents volatilize into the atmosphere, which can cause serious environmental pollution and threaten human health.
At present, water-based paints have appeared on the market, and the main water-based paints in the prior art are paints which take acrylic acid as a main raw material and water as a solvent, and the paints have good water resistance and weather resistance and small environmental pollution. But still has some disadvantages, such as general comprehensive performance, lower chemical performance (for example, alcohol and alkali resistance is poorer), lower physical indexes such as hardness, abrasion resistance and the like, and in addition, the functions are often single, only the decoration effect is achieved, and the environmental pollution is easily caused.
The Chinese patent with the publication number of CN104140751B discloses a preparation method of water-based primer and finish paint for a tower crane, which comprises primer for the tower crane industry and finish paint for the tower crane industry, and the preparation process comprises the following steps: adding an aqueous polyurethane dispersoid and a neutralizer, stirring, adding an aqueous dispersant, an aqueous foam inhibitor and an aqueous thickening anti-settling agent, stirring, adding medium chrome yellow and nano barium sulfate while stirring, dispersing, adding an aqueous defoamer, an aqueous flatting agent, an aqueous wetting agent, a mildew-proof bactericide and an aqueous rheological aid, adding a film-forming aid, stirring, controlling the pH value, adjusting the viscosity, spraying, self-drying, and testing the artificial aging resistance. The waterborne polyurethane iron red rusty primer and the waterborne polyurethane yellow finish paint special for tower crane products provided by the invention are quick to dry, high in hardness, excellent in adhesive force to rusty steel and capable of resisting salt spray for more than 600 hours. However, the paint has complex components and higher preparation cost, and the rust-proof wear-resistant performance needs to be further improved.
Therefore, the water paint for the tower crane, which has the advantages of low preparation cost, more excellent comprehensive performance, good flame-retardant and heat-insulation effects, excellent water resistance, alkali resistance, wear resistance and weather resistance, small influence on the environment, safe and environment-friendly use, meets the market demand, has wide market value and application prospect, and has very important significance for promoting the development of the water paint industry, is developed.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides the water-based paint for the tower crane and the preparation method thereof, and the preparation method has the characteristics of simple and convenient operation, easy obtainment of raw materials, small dependence on equipment, suitability for large-scale batch production and the like; the water paint for the tower crane prepared by the preparation method has the advantages of low preparation cost, more excellent comprehensive performance, good flame-retardant and heat-insulating effects, excellent water resistance, alkali resistance, wear resistance and weather resistance, small influence on the environment, safety in use, greenness and environmental protection.
The invention can be realized by the following technical scheme:
according to the water paint for the tower crane and the preparation method thereof, the water paint is prepared from the following components in parts by weight: 40-50 parts of hydroxypropyl phosphate based fluorine-containing acrylic copolymer, 5-10 parts of ethylene diamine tetramethylene phosphonic acid modified polyethylene glycol, 1-5 parts of metal organic framework, 1-5 parts of hepta (6-amino-6-deoxy) beta-cyclodextrin, 10-20 parts of water, 15-25 parts of filler, 1-3 parts of film-forming assistant, 1-3 parts of emulsifier and 1-3 parts of flatting agent.
Furthermore, the hydroxypropyl phosphate based fluorine-containing acrylic copolymer is prepared by copolymerization of 2, 3-dihydroxypropyl dihydrogen phosphate, (R) - [4R,5R,7S ] -5-vinyl-1-azabicyclo [2.2.2] octane-7-yl ] - (6-methoxyquinoline-4-yl) methanol, 2- (trifluoromethyl) acrylic acid and polyethylene glycol methacrylate.
Further, the preparation method of the hydroxypropyl phosphate based fluorine-containing acrylic copolymer comprises the following steps: adding 2, 3-dihydroxypropyl dihydrogen phosphate, (R) - [4R,5R,7S ] -5-vinyl-1-azabicyclo [2.2.2] octane-7-yl ] - (6-methoxyquinoline-4-yl) methanol, 2- (trifluoromethyl) acrylic acid, polyethylene glycol methacrylate and an initiator into a high boiling point solvent, stirring and reacting for 4-6 hours at 60-70 ℃ in a nitrogen atmosphere, then precipitating in n-hexane, and drying the precipitated polymer in a vacuum drying oven at 70-80 ℃ to constant weight to obtain the hydroxypropyl phosphate group fluorine-containing acrylic acid copolymer.
Preferably, the mass ratio of the 2, 3-dihydroxypropyl dihydrogen phosphate, (R) - [4R,5R,7S ] -5-vinyl-1-azabicyclo [2.2.2] octane-7-yl ] - (6-methoxyquinoline-4-yl) methanol, 2- (trifluoromethyl) acrylic acid, polyethylene glycol methacrylate, initiator and high boiling point solvent is 1:2:1, (0.02-0.04): 12-20.
Preferably, the initiator is selected from at least one of azobisisobutyronitrile and azobisisoheptonitrile.
Preferably, the high boiling point solvent is selected from at least one of dimethyl sulfoxide, N-dimethylformamide and N-methylpyrrolidone.
Further, the preparation method of the ethylene diamine tetramethylene phosphonic acid modified polyethylene glycol comprises the following steps:
adding polyethylene glycol and epoxy chloropropane into an organic solvent, adding an alkaline catalyst, stirring and reacting at 95-105 ℃ for 6-8 hours, filtering to remove insoluble salt, and performing rotary evaporation to remove the organic solvent to obtain epoxy chloropropane modified polyethylene glycol;
II, adding the epoxy chloropropane modified polyethylene glycol and ethylene diamine tetramethylene phosphonic acid prepared in the step I into isopropanol, stirring and reacting for 8-10 hours at the temperature of 60-80 ℃, then performing rotary evaporation to remove the isopropanol, washing for 3-5 times by using ether, and then performing rotary evaporation to remove the ether to obtain an intermediate product;
III, adding the intermediate product obtained in the step II and 3, 5-diphosphatidylphosphatidyinositol into water, stirring and reacting for 6-8 hours at 50-60 ℃, and then performing rotary evaporation to remove water to obtain the ethylene diamine tetramethylene phosphonic acid modified polyethylene glycol.
Preferably, the mass ratio of the polyethylene glycol, the epichlorohydrin, the organic solvent and the basic catalyst in the step I is (2-4) to 1 (12-15) to (0.3-0.6).
Preferably, the organic solvent is selected from one or more of ethanol, dichloromethane, tetrahydrofuran and acetone; the alkaline catalyst is at least one of sodium hydroxide, potassium hydroxide, sodium carbonate and potassium carbonate.
Preferably, the mass ratio of the epichlorohydrin modified polyethylene glycol, the ethylenediamine tetramethylene phosphonic acid and the isopropanol in the step II is 1:1 (3-5).
Preferably, the mass ratio of the intermediate product, the 3, 5-diphosphatidylphosphatidyinositol and the water in the step III is 1:0.5 (5-10).
Preferably, the leveling agent is one or more of a polyacrylate leveling agent, an acetate butyrate cellulose leveling agent and a polyvinyl butyral leveling agent; the emulsifier is selected from one or more of sodium dodecyl benzene sulfonate, polyoxypropylene polyoxyethylene glycerol ether and nonylphenol polyoxyethylene ether; the film-forming auxiliary agent is one or more of propylene glycol, methyl ether, propylene glycol butyl ether, alcohol ester twelve, diethylene glycol butyl ether or benzyl alcohol; the filler is one or more of heavy calcium carbonate, talcum powder, light calcium carbonate powder or titanium dioxide.
Preferably, the metal organic framework is selected from at least one of MOF-118, MOF-5, and MOF-74.
Further, the preparation method of the water paint for the tower crane comprises the following steps: the components are mixed and stirred in sequence according to the proportion, and then are ground and filtered to obtain the water paint for the tower crane.
Compared with the prior art, the invention has the beneficial effects that:
(1) the preparation method of the water paint for the tower crane disclosed by the invention is simple and convenient to operate, the raw materials are easy to obtain, the dependence on equipment is small, and the water paint is suitable for large-scale batch production.
(2) The water-based paint for the tower crane disclosed by the invention overcomes the defects of difficult construction, water resistance, easy peeling, poor fullness, poor hardness and the like of the water-based paint in the prior art, and has the advantages of low preparation cost, more excellent comprehensive performance, good flame-retardant and heat-insulating effects, excellent water resistance, alkali resistance, wear resistance and weather resistance, small influence on the environment, safety in use, greenness and environmental protection.
(3) According to the water paint for the tower crane, the fluorine-containing structure is introduced into the molecular chain, so that the comprehensive performance of the paint film is improved; a phosphorus-containing structure is introduced, so that the high temperature resistance and the flame retardant property of a paint film are improved; the quinoline structure and other structures are introduced to have synergistic effect, so that the weather resistance of a paint film is improved; the introduced multi-active hydroxyl and ether structure improves the adhesive force and the hydrophilicity of a paint film; the ethylene diamine tetra methylene phosphonic acid modified polyethylene glycol is introduced, so that the wear-resisting and rust-preventing properties can be effectively improved; the added metal organic framework and the hepta (6-amino-6-deoxy) beta-cyclodextrin have special structures, can effectively adsorb organic pollution gases such as formaldehyde and the like, and reduce air pollution; the adsorption force and the compatibility of a paint film and a tower crane can be improved, so that the peeling phenomenon is not easy to occur; carboxyl on the molecular chain of the copolymer, hepta (6-amino-6-deoxy) beta-cyclodextrin and quaternary ammonium groups on ethylene diamine tetramethylene phosphonic acid modified polyethylene glycol are interacted, so that the comprehensive performance of a paint film is further improved.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the following provides a detailed description of the product of the present invention with reference to the examples.
Wherein the raw materials are all purchased commercially.
Example 1
A water paint for tower cranes and a preparation method thereof are disclosed, which is prepared from the following components in parts by weight: 40 parts of hydroxypropyl phosphate based fluorine-containing acrylic copolymer, 5 parts of ethylene diamine tetra methylene phosphonic acid modified polyethylene glycol, 1 part of metal organic framework MOF-1181 part, 1 part of hepta (6-amino-6-deoxy) beta cyclodextrin, 10 parts of water, 15 parts of heavy calcium carbonate, 1 part of propylene glycol, 1 part of sodium dodecyl benzene sulfonate and 1 part of polyacrylate leveling agent.
The hydroxypropyl phosphate based fluorine-containing acrylic copolymer is prepared by copolymerization of 2, 3-dihydroxypropyl dihydrogen phosphate, (R) - [4R,5R,7S ] -5-vinyl-1-azabicyclo [2.2.2] octane-7-yl ] - (6-methoxyquinoline-4-yl) methanol, 2- (trifluoromethyl) acrylic acid and polyethylene glycol methacrylate.
The preparation method of the hydroxypropyl phosphate based fluorine-containing acrylic copolymer comprises the following steps: adding 100g of (R) - [4R,5R,7S ] -5-vinyl-1-azabicyclo [2.2.2] octane-7-yl ] - (6-methoxyquinoline-4-yl) methanol, 200g of 2- (trifluoromethyl) acrylic acid, 100g of polyethylene glycol methacrylate and 2g of azobisisobutyronitrile into 1200g of dimethyl sulfoxide, stirring and reacting for 4 hours at 60 ℃ in a nitrogen atmosphere, then precipitating in n-hexane, and drying the precipitated polymer in a vacuum drying oven at 70 ℃ to constant weight to obtain the hydroxypropyl phosphate fluorine-containing acrylic acid copolymer.
The preparation method of the ethylene diamine tetramethylene phosphonic acid modified polyethylene glycol comprises the following steps:
i, adding 200g of polyethylene glycol and 100g of epichlorohydrin into 1200g of ethanol, adding 30g of sodium hydroxide, stirring and reacting at 95 ℃ for 6 hours, filtering to remove insoluble salt, and performing rotary evaporation to remove an organic solvent to obtain epichlorohydrin modified polyethylene glycol;
II, adding 100g of epoxy chloropropane modified polyethylene glycol prepared in the step I and 100g of ethylene diamine tetramethylene phosphonic acid into 300g of isopropanol, stirring and reacting for 8 hours at 60 ℃, then performing rotary evaporation to remove the isopropanol, washing for 3 times by using ether, and then performing rotary evaporation to remove the ether to obtain an intermediate product;
III, adding 100g of the intermediate product prepared in the step II and 50g of 3, 5-diphosphatidylphosphatidyinositol into 500g of water, stirring and reacting for 6 hours at 50 ℃, and then performing rotary evaporation to remove water to obtain the ethylene diamine tetra methylene phosphonic acid modified polyethylene glycol.
The preparation method of the water paint for the tower crane comprises the following steps: the components are mixed and stirred in sequence according to the proportion, and then are ground and filtered to obtain the water paint for the tower crane.
Example 2
A water paint for tower cranes and a preparation method thereof are disclosed, which is prepared from the following components in parts by weight: 43 parts of hydroxypropyl phosphate-based fluorine-containing acrylic copolymer, 6 parts of ethylene diamine tetra (methylene phosphonic acid) modified polyethylene glycol, 52 parts of metal organic framework MOF-52 parts, 2 parts of hepta (6-amino-6-deoxy) beta-cyclodextrin, 13 parts of water, 17 parts of talcum powder, 2 parts of methyl ether, 2 parts of polyoxypropylene polyoxyethylene glycerol ether and 2 parts of cellulose acetate leveling agent.
The hydroxypropyl phosphate based fluorine-containing acrylic copolymer is prepared by copolymerization of 2, 3-dihydroxypropyl dihydrogen phosphate, (R) - [4R,5R,7S ] -5-vinyl-1-azabicyclo [2.2.2] octane-7-yl ] - (6-methoxyquinoline-4-yl) methanol, 2- (trifluoromethyl) acrylic acid and polyethylene glycol methacrylate.
The preparation method of the hydroxypropyl phosphate based fluorine-containing acrylic copolymer comprises the following steps: 100g of (R) - [4R,5R,7S ] -5-vinyl-1-azabicyclo [2.2.2] octane-7-yl ] - (6-methoxyquinoline-4-yl) methanol, 200g of 2- (trifluoromethyl) acrylic acid, 100g of polyethylene glycol methacrylate and 2.5g of azobisisobutyronitrile are added into 1400g of dimethyl sulfoxide, stirred and reacted for 4.5 hours at 63 ℃ in a nitrogen atmosphere, then precipitated in n-hexane, and the precipitated polymer is dried to constant weight at 73 ℃ in a vacuum drying oven to obtain the hydroxypropyl phosphate group fluorine-containing acrylic copolymer.
The preparation method of the ethylene diamine tetramethylene phosphonic acid modified polyethylene glycol comprises the following steps:
adding 250g of polyethylene glycol and 100g of epoxy chloropropane into 1300g of dichloromethane, adding 35g of potassium hydroxide, stirring and reacting at 97 ℃ for 6.5 hours, filtering to remove insoluble salt, and performing rotary evaporation to remove an organic solvent to obtain epoxy chloropropane modified polyethylene glycol;
II, adding 100g of epoxy chloropropane modified polyethylene glycol prepared in the step I and 100g of ethylene diamine tetramethylene phosphonic acid into 350g of isopropanol, stirring and reacting for 8.5 hours at 65 ℃, then carrying out rotary evaporation to remove the isopropanol, washing for 4 times by using ether, and then carrying out rotary evaporation to remove the ether to obtain an intermediate product;
III, adding 100g of the intermediate product prepared in the step II and 50g of 3, 5-diphosphatidylphosphatidyinositol into 700g of water, stirring and reacting for 6.5 hours at 53 ℃, and then performing rotary evaporation to remove water to obtain the ethylene diamine tetra methylene phosphonic acid modified polyethylene glycol.
The preparation method of the water paint for the tower crane comprises the following steps: the components are mixed and stirred in sequence according to the proportion, and then are ground and filtered to obtain the water paint for the tower crane.
Example 3
A water paint for tower cranes and a preparation method thereof are disclosed, which is prepared from the following components in parts by weight: 45 parts of hydroxypropyl phosphate based fluorine-containing acrylic copolymer, 7 parts of ethylene diamine tetra methylene phosphonic acid modified polyethylene glycol, MOF-743 parts of a metal organic framework, 3 parts of hepta (6-amino-6-deoxy) beta cyclodextrin, 15 parts of water, 18 parts of light calcium carbonate powder, 2 parts of propylene glycol butyl ether, 2 parts of nonylphenol polyoxyethylene ether and 2 parts of polyvinyl butyral leveling agent.
The hydroxypropyl phosphate based fluorine-containing acrylic copolymer is prepared by copolymerization of 2, 3-dihydroxypropyl dihydrogen phosphate, (R) - [4R,5R,7S ] -5-vinyl-1-azabicyclo [2.2.2] octane-7-yl ] - (6-methoxyquinoline-4-yl) methanol, 2- (trifluoromethyl) acrylic acid and polyethylene glycol methacrylate.
The preparation method of the hydroxypropyl phosphate based fluorine-containing acrylic copolymer comprises the following steps: adding 100g of (R) - [4R,5R,7S ] -5-vinyl-1-azabicyclo [2.2.2] octane-7-yl ] - (6-methoxyquinoline-4-yl) methanol, 200g of 2- (trifluoromethyl) acrylic acid, 100g of polyethylene glycol methacrylate and 3g of azobisisoheptonitrile into 1500g of N-methylpyrrolidone, stirring and reacting for 5 hours at 65 ℃ in a nitrogen atmosphere, then precipitating in N-hexane, and drying the precipitated polymer in a vacuum drying oven at 75 ℃ to constant weight to obtain the hydroxypropyl phosphate fluorine-containing acrylic acid copolymer.
The preparation method of the ethylene diamine tetramethylene phosphonic acid modified polyethylene glycol comprises the following steps:
adding 300g of polyethylene glycol and 100g of epichlorohydrin into 1350g of tetrahydrofuran, adding 45g of sodium carbonate, stirring and reacting at 98 ℃ for 7 hours, filtering to remove insoluble salt, and performing rotary evaporation to remove an organic solvent to obtain epichlorohydrin modified polyethylene glycol;
II, adding 100g of epoxy chloropropane modified polyethylene glycol prepared in the step I and 100g of ethylene diamine tetramethylene phosphonic acid into 400g of isopropanol, stirring and reacting for 9 hours at 70 ℃, then carrying out rotary evaporation to remove the isopropanol, washing for 4 times by using ether, and then carrying out rotary evaporation to remove the ether to obtain an intermediate product;
III, adding 100g of the intermediate product prepared in the step II and 50g of 3, 5-diphosphatidylphosphatidyinositol into 800g of water, stirring and reacting for 7 hours at 56 ℃, and then performing rotary evaporation to remove water to obtain the ethylene diamine tetra methylene phosphonic acid modified polyethylene glycol.
The preparation method of the water paint for the tower crane comprises the following steps: the components are mixed and stirred in sequence according to the proportion, and then are ground and filtered to obtain the water paint for the tower crane.
Example 4
A water paint for tower cranes and a preparation method thereof are disclosed, which is prepared from the following components in parts by weight: 48 parts of hydroxypropyl phosphate-based fluorine-containing acrylic copolymer, 9 parts of ethylene diamine tetra (methylene phosphonic acid) modified polyethylene glycol, 4 parts of metal organic framework, 4 parts of hepta (6-amino-6-deoxy) beta-cyclodextrin, 19 parts of water, 24 parts of filler, 3 parts of film-forming assistant, 2 parts of emulsifier and 3 parts of flatting agent.
The hydroxypropyl phosphate based fluorine-containing acrylic copolymer is prepared by copolymerization of 2, 3-dihydroxypropyl dihydrogen phosphate, (R) - [4R,5R,7S ] -5-vinyl-1-azabicyclo [2.2.2] octane-7-yl ] - (6-methoxyquinoline-4-yl) methanol, 2- (trifluoromethyl) acrylic acid and polyethylene glycol methacrylate.
The preparation method of the hydroxypropyl phosphate based fluorine-containing acrylic copolymer comprises the following steps: adding 100g of (R) - [4R,5R,7S ] -5-vinyl-1-azabicyclo [2.2.2] octane-7-yl ] - (6-methoxyquinoline-4-yl) methanol, 200g of 2- (trifluoromethyl) acrylic acid, 100g of polyethylene glycol methacrylate and 3.5g of initiator into 1850g of high boiling point solvent, stirring and reacting for 5.5 hours at 68 ℃ in a nitrogen atmosphere, then precipitating in n-hexane, and drying the precipitated polymer in a vacuum drying oven at 78 ℃ to constant weight to obtain the hydroxypropyl phosphate group fluorine-containing acrylic acid copolymer; the initiator is a mixture formed by mixing azodiisobutyronitrile and azodiisoheptonitrile according to the mass ratio of 3: 5; the high-boiling-point solvent is a mixture formed by mixing dimethyl sulfoxide, N-dimethylformamide and N-methylpyrrolidone according to the mass ratio of 1:3: 2.
The preparation method of the ethylene diamine tetramethylene phosphonic acid modified polyethylene glycol comprises the following steps:
i, adding 350g of polyethylene glycol and 100g of epoxy chloropropane into 1450g of an organic solvent, adding 55g of a basic catalyst into the organic solvent, stirring the mixture at 103 ℃ for reaction for 7.5 hours, filtering the reaction product to remove insoluble salt, and performing rotary evaporation to remove the organic solvent to obtain epoxy chloropropane modified polyethylene glycol; the organic solvent is formed by mixing ethanol, dichloromethane, tetrahydrofuran and acetone according to the mass ratio of 1:2:3: 2; the alkaline catalyst is prepared by mixing sodium hydroxide, potassium hydroxide, sodium carbonate and potassium carbonate according to the mass ratio of 2:3:5: 3;
II, adding 100g of epoxy chloropropane modified polyethylene glycol prepared in the step I and 100g of ethylene diamine tetramethylene phosphonic acid into 450g of isopropanol, stirring and reacting at 78 ℃ for 9.5 hours, then carrying out rotary evaporation to remove the isopropanol, washing with diethyl ether for 5 times, and then carrying out rotary evaporation to remove the diethyl ether to obtain an intermediate product;
III, adding 100g of the intermediate product prepared in the step II and 50g of 3, 5-diphosphatidylphosphatidyinositol into 950g of water, stirring and reacting for 7.7 hours at 58 ℃, and then performing rotary evaporation to remove water to obtain the ethylene diamine tetra methylene phosphonic acid modified polyethylene glycol.
The leveling agent is a mixture formed by mixing a polyacrylate leveling agent, a cellulose acetate butyrate leveling agent and a polyvinyl butyral leveling agent according to a mass ratio of 1:3: 2; the emulsifier is a mixture formed by mixing sodium dodecyl benzene sulfonate, polyoxypropylene polyoxyethylene glycerol ether and nonylphenol polyoxyethylene ether according to a mass ratio of 1:2: 4; the film-forming auxiliary agent is a mixture formed by mixing propylene glycol butyl ether, alcohol ester twelve, diethylene glycol butyl ether and benzyl alcohol according to the mass ratio of 2:3:2: 3; the filler is a mixture formed by mixing heavy calcium carbonate, talcum powder, light calcium carbonate powder and titanium dioxide according to the mass ratio of 1:4:3: 2; the metal organic framework is formed by mixing MOF-118, MOF-5 and MOF-74 according to the mass ratio of 1:3: 2.
The preparation method of the water paint for the tower crane comprises the following steps: the components are mixed and stirred in sequence according to the proportion, and then are ground and filtered to obtain the water paint for the tower crane.
Example 5
A water paint for tower cranes and a preparation method thereof are disclosed, which is prepared from the following components in parts by weight: 50 parts of hydroxypropyl phosphate-based fluorine-containing acrylic copolymer, 10 parts of ethylene diamine tetra methylene phosphonic acid modified polyethylene glycol, 55 parts of metal organic framework MOF, 5 parts of hepta (6-amino-6-deoxy) beta cyclodextrin, 20 parts of water, 25 parts of light calcium carbonate powder, 3 parts of diethylene glycol monobutyl ether, 3 parts of sodium dodecyl benzene sulfonate and 3 parts of cellulose acetate butyrate leveling agent.
The hydroxypropyl phosphate based fluorine-containing acrylic copolymer is prepared by copolymerization of 2, 3-dihydroxypropyl dihydrogen phosphate, (R) - [4R,5R,7S ] -5-vinyl-1-azabicyclo [2.2.2] octane-7-yl ] - (6-methoxyquinoline-4-yl) methanol, 2- (trifluoromethyl) acrylic acid and polyethylene glycol methacrylate.
The preparation method of the hydroxypropyl phosphate based fluorine-containing acrylic copolymer comprises the following steps: adding 100g of (R) - [4R,5R,7S ] -5-vinyl-1-azabicyclo [2.2.2] octane-7-yl ] - (6-methoxyquinoline-4-yl) methanol, 200g of 2- (trifluoromethyl) acrylic acid, 100g of polyethylene glycol methacrylate and 4g of azobisisobutyronitrile into 2000g of N, N-dimethylformamide, stirring and reacting for 6 hours at 70 ℃ in a nitrogen atmosphere, then precipitating in N-hexane, and drying the precipitated polymer in a vacuum drying oven at 80 ℃ to constant weight to obtain the hydroxypropyl phosphate group fluorine-containing acrylic acid copolymer.
The preparation method of the ethylene diamine tetramethylene phosphonic acid modified polyethylene glycol comprises the following steps:
adding 400g of polyethylene glycol and 100g of epoxy chloropropane into 1500g of an organic solvent, adding 60g of a basic catalyst, stirring and reacting at 105 ℃ for 8 hours, filtering to remove insoluble salt, and performing rotary evaporation to remove the organic solvent to obtain epoxy chloropropane modified polyethylene glycol; the organic solvent is a mixture formed by mixing ethanol, dichloromethane, tetrahydrofuran and acetone according to the mass ratio of 1:1:3: 2; the alkaline catalyst is a mixture formed by mixing sodium hydroxide, potassium hydroxide, sodium carbonate and potassium carbonate according to a mass ratio of 1:2:4: 3;
II, adding 100g of epoxy chloropropane modified polyethylene glycol prepared in the step I and 100g of ethylene diamine tetramethylene phosphonic acid into 500g of isopropanol, stirring and reacting for 10 hours at 80 ℃, then carrying out rotary evaporation to remove the isopropanol, washing for 5 times by using ether, and then carrying out rotary evaporation to remove the ether to obtain an intermediate product;
III, adding 100g of the intermediate product prepared in the step II and 50g of 3, 5-diphosphatidylphosphatidyinositol into 1000g of water, stirring and reacting for 8 hours at 60 ℃, and then performing rotary evaporation to remove water to obtain the ethylene diamine tetra methylene phosphonic acid modified polyethylene glycol.
The preparation method of the water paint for the tower crane comprises the following steps: the components are mixed and stirred in sequence according to the proportion, and then are ground and filtered to obtain the water paint for the tower crane.
Comparative example
An aqueous paint for tower cranes and a preparation method thereof, which is prepared according to the formula and the preparation method of embodiment 1 of the Chinese patent CN 10414075B.
Meanwhile, in order to evaluate the specific technical effect of the water paint for the tower crane, the water paint for the tower crane in the embodiment and the comparative example of the invention is used for performance test, and the test result and the test method are shown in table 1.
TABLE 1
As can be seen from Table 1, the water-based paint for the tower crane disclosed by the embodiment of the invention has higher adhesive force, more excellent water resistance and higher hardness, and is shorter in drying time and more environment-friendly in use compared with the water-based paint in the prior art.
The foregoing is merely a preferred embodiment of the invention and is not intended to limit the invention in any manner; those of ordinary skill in the art can readily practice the present invention as described herein; however, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention; meanwhile, any changes, modifications, and evolutions of the equivalent changes of the above embodiments according to the actual techniques of the present invention are still within the protection scope of the technical solution of the present invention.
Claims (10)
1. The water-based paint for the tower crane and the preparation method thereof are characterized by comprising the following components in parts by weight: 40-50 parts of hydroxypropyl phosphate based fluorine-containing acrylic copolymer, 5-10 parts of ethylene diamine tetramethylene phosphonic acid modified polyethylene glycol, 1-5 parts of metal organic framework, 1-5 parts of hepta (6-amino-6-deoxy) beta-cyclodextrin, 10-20 parts of water, 15-25 parts of filler, 1-3 parts of film-forming assistant, 1-3 parts of emulsifier and 1-3 parts of flatting agent; the hydroxypropyl phosphate based fluorine-containing acrylic copolymer is prepared by copolymerization of 2, 3-dihydroxypropyl dihydrogen phosphate, (R) - [4R,5R,7S ] -5-vinyl-1-azabicyclo [2.2.2] octane-7-yl ] - (6-methoxyquinoline-4-yl) methanol, 2- (trifluoromethyl) acrylic acid and polyethylene glycol methacrylate.
2. The water paint for tower cranes and the preparation method thereof as claimed in claim 1, wherein the preparation method of the hydroxypropyl phosphate based fluorine-containing acrylic acid copolymer comprises the following steps: adding 2, 3-dihydroxypropyl dihydrogen phosphate, (R) - [4R,5R,7S ] -5-vinyl-1-azabicyclo [2.2.2] octane-7-yl ] - (6-methoxyquinoline-4-yl) methanol, 2- (trifluoromethyl) acrylic acid, polyethylene glycol methacrylate and an initiator into a high boiling point solvent, stirring and reacting for 4-6 hours at 60-70 ℃ in a nitrogen atmosphere, then precipitating in n-hexane, and drying the precipitated polymer in a vacuum drying oven at 70-80 ℃ to constant weight to obtain the hydroxypropyl phosphate group fluorine-containing acrylic acid copolymer.
3. The water paint for tower cranes and the preparation method thereof as claimed in claim 2, wherein the mass ratio of (R) - [4R,5R,7S ] -5-vinyl-1-azabicyclo [2.2.2] octane-7-yl ] - (6-methoxyquinoline-4-yl) methanol, 2- (trifluoromethyl) acrylic acid, polyethylene glycol methacrylate, initiator and high boiling point solvent is 1:2:1, (0.02-0.04) to (12-20).
4. The water paint for tower cranes and the preparation method thereof as claimed in claim 2, wherein the initiator is at least one selected from azobisisobutyronitrile and azobisisoheptonitrile; the high boiling point solvent is at least one selected from dimethyl sulfoxide, N-dimethylformamide and N-methylpyrrolidone.
5. The water paint for the tower crane and the preparation method thereof as claimed in claim 1, wherein the preparation method of the ethylenediamine tetramethylene phosphonic acid modified polyethylene glycol comprises the following steps:
adding polyethylene glycol and epoxy chloropropane into an organic solvent, adding an alkaline catalyst, stirring and reacting at 95-105 ℃ for 6-8 hours, filtering to remove insoluble salt, and performing rotary evaporation to remove the organic solvent to obtain epoxy chloropropane modified polyethylene glycol;
II, adding the epoxy chloropropane modified polyethylene glycol and ethylene diamine tetramethylene phosphonic acid prepared in the step I into isopropanol, stirring and reacting for 8-10 hours at the temperature of 60-80 ℃, then performing rotary evaporation to remove the isopropanol, washing for 3-5 times by using ether, and then performing rotary evaporation to remove the ether to obtain an intermediate product;
III, adding the intermediate product obtained in the step II and 3, 5-diphosphatidylphosphatidyinositol into water, stirring and reacting for 6-8 hours at 50-60 ℃, and then performing rotary evaporation to remove water to obtain the ethylene diamine tetramethylene phosphonic acid modified polyethylene glycol.
6. The water paint for tower cranes and the preparation method thereof as claimed in claim 5, wherein the mass ratio of the polyethylene glycol, the epichlorohydrin, the organic solvent and the basic catalyst in the step I is (2-4) to 1 (12-15) to (0.3-0.6); the organic solvent is selected from one or more of ethanol, dichloromethane, tetrahydrofuran and acetone; the alkaline catalyst is at least one of sodium hydroxide, potassium hydroxide, sodium carbonate and potassium carbonate.
7. The water paint for tower cranes and the preparation method thereof as claimed in claim 5, wherein the mass ratio of the epichlorohydrin modified polyethylene glycol, the ethylenediamine tetramethylene phosphonic acid and the isopropanol in the step II is 1:1 (3-5).
8. The water paint for tower cranes and the preparation method thereof as claimed in claim 5, wherein the mass ratio of the intermediate product, the phosphatidylinositol 3, 5-diphosphate and the water in the step III is 1:0.5 (5-10).
9. The water-based paint for tower cranes and the preparation method thereof as claimed in claim 1, wherein the leveling agent is preferably one or more of polyacrylate leveling agent, cellulose acetate butyrate leveling agent and polyvinyl butyral leveling agent; the emulsifier is selected from one or more of sodium dodecyl benzene sulfonate, polyoxypropylene polyoxyethylene glycerol ether and nonylphenol polyoxyethylene ether; the film-forming auxiliary agent is one or more of propylene glycol, methyl ether, propylene glycol butyl ether, alcohol ester twelve, diethylene glycol butyl ether or benzyl alcohol; the filler is one or more of heavy calcium carbonate, talcum powder, light calcium carbonate powder or titanium dioxide; the metal organic framework is selected from at least one of MOF-118, MOF-5 and MOF-74.
10. The water paint for tower cranes and the preparation method thereof as claimed in any one of claims 1 to 9, wherein the preparation method of the water paint for tower cranes comprises the following steps: the components are mixed and stirred in sequence according to the proportion, and then are ground and filtered to obtain the water paint for the tower crane.
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