CN111073496A - Environment-friendly polymer cement waterproof coating and preparation method thereof - Google Patents
Environment-friendly polymer cement waterproof coating and preparation method thereof Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
- C09D175/14—Polyurethanes having carbon-to-carbon unsaturated bonds
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
Abstract
The invention discloses an environment-friendly polymer cement waterproof coating which is characterized by being prepared by mixing liquid materials and powder materials according to the mass ratio of 1 (0.9-2); the liquid material comprises the following raw materials in parts by weight: 40-60 parts of vinyl-terminated aqueous polyurethane emulsion, 10-20 parts of 2, 6-diaminopurine nucleoside/5, 5-dimethyl-1, 3-di (ethylene oxide methyl) imidazolidine-2, 4-dione polycondensate, 1-3 parts of allyl 2-chloro-1, 1, 2-trifluoroethyl ether, 1-4 parts of cosolvent, 2-5 parts of emulsifier, 0.1-0.3 part of dispersant, 0.1-0.3 part of defoamer, 1-3 parts of coupling agent and 20-30 parts of water; the powder comprises the following components in parts by weight: 30-40 parts of cement, 10-20 parts of palygorskite powder, 10-20 parts of cordierite powder, 5-10 parts of zircon powder, 5-10 parts of waste gypsum, 1-2 parts of lignin and 0.3-0.6 part of photoinitiator. The environment-friendly polymer cement waterproof coating disclosed by the invention is excellent in comprehensive performance, good in performance stability, large in adhesive force, not easy to fall off, good in corrosion resistance, wear resistance and mechanical properties, safe to use and environment-friendly.
Description
Technical Field
The invention relates to the technical field of building materials, in particular to an environment-friendly polymer cement waterproof coating and a preparation method thereof.
Background
In recent years, with the rapid development of economy and the advance of urbanization in China, various major building engineering projects emerge like bamboo shoots in the spring after rain, tiles are added to wind mining and increase tiles in cities, and the major building engineering projects become a mark of urban modernization. However, the widespread use of building materials behind these major construction projects is not isolated. The quality of the building material is a key factor directly influencing the engineering quality. Therefore, it is necessary to develop a building material having excellent comprehensive properties.
The polymer cement waterproof coating is an important building material, mainly comprises gel materials such as water-based polymer emulsion and cement, has the advantages of cement-based material rigidity and high polymer flexibility, a waterproof film layer formed after coating is high in compactness and strong in binding power, the requirements of different projects on the strength and flexibility of a coating film can be met by adjusting the proportion of the cement to the polymer emulsion, the waterproof coating is a product which can be developed rapidly in recent years, and the waterproof coating is widely applied to various projects with waterproof requirements, such as kitchens, toilets, basements, pools, tunnels and the like.
The polymer cement waterproof coating in the prior art has good waterproof performance, but the problems of internal corner cracking, outdoor construction sagging, no dryness in a high-humidity environment, low strength and the like generally exist. In addition, the difference of the south and north climate in China is obvious, particularly in the south, the humidity in the air is high, the drying speed of the polymer cement waterproof coating in construction is low, and the tensile strength and the bonding strength after drying are low; in addition, the materials have short storage period, generally need to be prepared at present, are expensive in manufacturing cost, and easily have the problem of poor compatibility of liquid materials and powder materials in the using process, and the defects limit the comprehensive popularization of the polymer cement waterproof coating.
The invention of Chinese patent application CN201510708150.2 discloses a high-elongation high-strength polymer cement waterproof paint, which mainly emphasizes that the polymer cement waterproof paint with high elongation and high strength (under normal environment) is developed from the viewpoint of improving the physical properties of the product, but because the product has the high-elongation high-strength characteristic only under normal temperature and humidity conditions, in the actual use process, the attenuation of the performance of a common product is very large under the high-temperature and high-humidity environment, and the so-called high-elongation and high-strength function can not be achieved in the actual use at all.
Therefore, the polymer cement waterproof coating which has excellent comprehensive performance, good performance stability, high strength in a high-humidity environment and slow attenuation is developed to meet the market demand, has wide market value and application prospect, and plays an important role in promoting the development of the polymer cement waterproof coating industry.
Disclosure of Invention
In view of the above, the invention aims to provide an environment-friendly polymer cement waterproof coating and a preparation method thereof, wherein the preparation method is simple and easy to implement, convenient to construct, low in preparation cost, low in requirements on equipment and reaction conditions, suitable for continuous large-scale production, and high in economic value, social value and ecological value; the prepared environment-friendly polymer cement waterproof coating has excellent comprehensive performance, good performance stability, quick drying in a high-humidity environment, high strength, slow attenuation, large adhesive force, difficult shedding, good corrosion resistance, wear resistance and mechanical property, safe use and environmental protection.
In order to achieve the purpose, the invention adopts the technical scheme that:
an environment-friendly polymer cement waterproof coating is characterized by being prepared by mixing liquid materials and powder materials according to the mass ratio of 1 (0.9-2); the liquid material comprises the following raw materials in parts by weight: 40-60 parts of vinyl-terminated aqueous polyurethane emulsion, 10-20 parts of 2, 6-diaminopurine nucleoside/5, 5-dimethyl-1, 3-di (ethylene oxide methyl) imidazolidine-2, 4-dione polycondensate, 1-3 parts of allyl 2-chloro-1, 1, 2-trifluoroethyl ether, 1-4 parts of cosolvent, 2-5 parts of emulsifier, 0.1-0.3 part of dispersant, 0.1-0.3 part of defoamer, 1-3 parts of coupling agent and 20-30 parts of water; the powder comprises the following components in parts by weight: 30-40 parts of cement, 10-20 parts of palygorskite powder, 10-20 parts of cordierite powder, 5-10 parts of zircon powder, 5-10 parts of waste gypsum, 1-2 parts of lignin and 0.3-0.6 part of photoinitiator.
Preferably, the vinyl-terminated aqueous polyurethane emulsion is prepared in advance, and the preparation method refers to the following steps: zhang Jing, Wang Xiang Mei, Chen Han Gen, Zhang Xiao Li [ J ]. Synthesis research of aqueous polyurethane emulsion containing vinyl end group, chemical intermediate (stage 8), 40-45.
Further, the cosolvent is at least one of propylene glycol, glycerol and butyl acetate.
Further, the emulsifier is at least one of sodium dodecyl benzene sulfonate, polyoxypropylene polyoxyethylene glycerol ether and nonylphenol polyoxyethylene ether.
Further, the dispersant is at least one of sodium hexametaphosphate and sodium polycarboxylate.
Further, the antifoaming agent is one or more of tributyl phosphate, antifoaming agent dele 3100 and antifoaming agent BYK 088.
Further, the coupling agent is at least one of a silane coupling agent KH550, a silane coupling agent KH560 and a silane coupling agent KH 570.
Further, the photoinitiator is at least one of benzoin dimethyl ether, benzoin ethyl ether and bis-benzoyl phenyl phosphine oxide.
Preferably, the cement is at least one of ordinary portland cement, portland slag cement, portland pozzolanic cement and portland fly ash cement.
Preferably, the particle size of the palygorskite powder is 100-200 meshes; the particle size of the cordierite powder is 100-200 meshes; the particle size of the zircon powder is 100-200 meshes; the particle size of the waste gypsum is 200-400 meshes.
Further, a method for producing the polycondensate of 2, 6-diaminopurine nucleoside/5, 5-dimethyl-1, 3-di (oxiranylmethyl) imidazolidine-2, 4-dione, comprising the steps of: adding 2, 6-diaminopurine nucleoside, 5-dimethyl-1, 3-di (oxiranylmethyl) imidazolidine-2, 4-dione and an alkaline catalyst into a high boiling point solvent, stirring and reacting at 70-80 ℃ for 10-15 hours, filtering to remove insoluble substances, and removing the solvent by rotary evaporation to obtain a 2, 6-diaminopurine nucleoside/5, 5-dimethyl-1, 3-di (oxiranylmethyl) imidazolidine-2, 4-dione polycondensate.
Preferably, the molar ratio of the 2, 6-diaminopurine nucleoside to the 5, 5-dimethyl-1, 3-di (oxiranylmethyl) imidazolidine-2, 4-dione to the basic catalyst to the high-boiling solvent is 1:1 (0.1-0.3) to (6-12).
Preferably, the alkaline catalyst is at least one of sodium carbonate, sodium hydroxide, potassium carbonate and potassium hydroxide.
Preferably, the high boiling point solvent is at least one of dimethylsulfoxide, N-dimethylformamide, and N, N-dimethylacetamide.
The invention also aims to provide a preparation method of the environment-friendly polymer cement waterproof coating, which is characterized by comprising the following steps of:
s1, proportionally mixing the raw materials of ammonium in the liquid material, and stirring for 20-30 minutes at the temperature of 60-80 ℃ and the rotating speed of 800-;
step S2, mixing the components in the powder material according to a proportion, and uniformly stirring to obtain powder material components;
and S3, when in use, uniformly mixing the liquid material component prepared in the step S1 and the powder material component prepared in the step S2 according to the proportion.
Adopt the produced beneficial effect of above-mentioned technical scheme to lie in:
(1) the preparation method of the environment-friendly polymer cement waterproof coating provided by the invention is simple and feasible, convenient to construct, low in preparation cost, low in requirements on equipment and reaction conditions, suitable for continuous large-scale production, and high in economic value, social value and ecological value.
(2) The environment-friendly polymer cement waterproof coating provided by the invention overcomes the problems of internal corner cracking, sagging in outdoor construction, no drying in a high-humidity environment, low strength and the like of the traditional polymer cement waterproof coating. In addition, the difference of the south and north climates of China is obvious, particularly in the south, the humidity in the air is large, the construction drying speed is low, the tensile strength and the bonding strength after drying are low, the storage period is short, the existing preparation is generally needed, the manufacturing cost is high, the defect of poor compatibility of liquid materials and powder materials is easy to occur in the using process, and the composite material has the advantages of excellent comprehensive performance, good performance stability, quick drying in a high-humidity environment, high strength, slow attenuation, large adhesive force, difficult shedding, good corrosion resistance, wear resistance and mechanical property, and safe and environment-friendly use.
(3) According to the environment-friendly polymer cement waterproof coating provided by the invention, a vinyl-terminated aqueous polyurethane emulsion and a 2, 6-diaminopurine nucleoside/5, 5-dimethyl-1, 3-di (ethylene oxide methyl) imidazolidine-2, 4-dione polycondensate are used as a film-forming polymer in a liquid material, and due to the introduction of a polyurethane structure, the film layer has good weather resistance, excellent mechanical properties and high bonding strength; the 2, 6-diaminopurine nucleoside/5, 5-dimethyl-1, 3-di (ethylene oxide methyl) imidazolidine-2, 4-dione polycondensate also contains purine groups, so that the flame retardance and the aging resistance of the coating can be effectively improved, and the imidazolidinyl groups on the main chain can endow the material with excellent mechanical properties and can endow the coating with antibacterial property; the side chain glycoside group makes the bonding strength larger; the added allyl 2-chloro-1, 1, 2-trifluoroethyl ether has chlorine which is easy to react with secondary amino groups on a molecular chain, and the allyl is easy to generate copolymerization reaction with vinyl in the vinyl-terminated waterborne polyurethane emulsion, so that a three-dimensional network structure is formed, and the waterproof performance and the comprehensive performance are effectively improved; the main chain imidazolidine structure and the introduced fluorine-containing structure and purine structure have better waterproof and weather-resistant performance on the premise of not influencing the bonding strength.
(4) The environment-friendly polymer cement waterproof coating provided by the invention uses industrial solid waste such as waste gypsum, realizes the recycling of the solid waste, changes waste into valuable, and is beneficial to simultaneously solving the environmental problem and the resource problem; the palygorskite powder, the cordierite powder, the zircon powder and the waste gypsum have synergistic effect, so that the mechanical strength is excellent, the wear resistance is good, and the comprehensive performance can be improved by the synergistic effect; by combining powder fillers with different surface energies and particle size distributions, the stable dispersion state of various powders and organic substance emulsions is formed by utilizing the electrostatic charge adsorption property on the surface of the powder and the adsorption property of hydrogen bonds formed between the surface of the powder and emulsion organic substances (imino groups are introduced through polycondensation), toxic and harmful organic substances are not added, and the environment is protected.
Detailed Description
In order to make the technical solutions of the present invention better understood and make the above features, objects, and advantages of the present invention more comprehensible, the present invention is further described with reference to the following examples. The examples are intended to illustrate the invention only and are not intended to limit the scope of the invention.
The vinyl-terminated waterborne polyurethane emulsion disclosed by the embodiment of the invention is prepared in advance, and the preparation method refers to the following steps: zhang Jing, Wang Xiang Mei, Chen Han Gen, Zhang Xiao Li [ J ]. Synthesis research of aqueous polyurethane emulsion of terminal vinyl, chemical intermediate (stage 8), 40-45; other raw materials were all purchased commercially.
Example 1
An environment-friendly polymer cement waterproof coating is characterized by being prepared by mixing liquid materials and powder materials according to the mass ratio of 1: 0.9; the liquid material comprises the following raw materials in parts by weight: 40 parts of vinyl-terminated aqueous polyurethane emulsion, 10 parts of 2, 6-diaminopurine nucleoside/5, 5-dimethyl-1, 3-di (ethylene oxide methyl) imidazolidine-2, 4-dione polycondensate, 1 part of allyl 2-chloro-1, 1, 2-trifluoroethyl ether, 1 part of propylene glycol, 2 parts of sodium dodecyl benzene sulfonate, 0.1 part of sodium hexametaphosphate, 0.1 part of tributyl phosphate, 1 part of silane coupling agent KH 5501 part and 20 parts of water; the powder comprises the following components in parts by weight: 30 parts of ordinary portland cement, 10 parts of palygorskite powder, 10 parts of cordierite powder, 5 parts of zircon powder, 5 parts of waste gypsum, 1 part of lignin and 0.3 part of benzoin dimethyl ether.
The particle size of the palygorskite powder is 100 meshes; the particle size of the cordierite powder is 100 meshes; the particle size of the zircon powder is 100 meshes; the particle size of the waste gypsum is 200 meshes.
The preparation method of the polycondensate of the 2, 6-diaminopurine nucleoside/5, 5-dimethyl-1, 3-di (ethylene oxide methyl) imidazolidine-2, 4-diketone comprises the following steps: adding 2, 6-diaminopurine nucleoside, 5-dimethyl-1, 3-di (oxiranylmethyl) imidazolidine-2, 4-dione and sodium carbonate into dimethyl sulfoxide, stirring at 70 ℃ for reaction for 10 hours, filtering to remove insoluble substances, and performing rotary evaporation to remove the solvent to obtain a 2, 6-diaminopurine nucleoside/5, 5-dimethyl-1, 3-di (oxiranylmethyl) imidazolidine-2, 4-dione polycondensate; the molar ratio of the 2, 6-diaminopurine nucleoside to the 5, 5-dimethyl-1, 3-di (oxiranylmethyl) imidazolidine-2, 4-dione to the sodium carbonate to the dimethyl sulfoxide is 1:1:0.1: 6.
The preparation method of the environment-friendly polymer cement waterproof coating is characterized by comprising the following steps of:
step S1, proportionally mixing the raw materials of ammonium in the liquid material, and stirring for 20 minutes at the temperature of 60 ℃ and the rotating speed of 800r/min to obtain liquid material components;
step S2, mixing the components in the powder material according to a proportion, and uniformly stirring to obtain powder material components;
and S3, when in use, uniformly mixing the liquid material component prepared in the step S1 and the powder material component prepared in the step S2 according to the proportion.
Example 2
An environment-friendly polymer cement waterproof coating is characterized by being prepared by mixing liquid materials and powder materials according to the mass ratio of 1: 1.1; the liquid material comprises the following raw materials in parts by weight: 45 parts of vinyl-terminated aqueous polyurethane emulsion, 12 parts of 2, 6-diaminopurine nucleoside/5, 5-dimethyl-1, 3-di (ethylene oxide methyl) imidazolidine-2, 4-dione polycondensate, 1.5 parts of allyl 2-chloro-1, 1, 2-trifluoroethyl ether, 2 parts of glycerol, 3 parts of polyoxypropylene polyoxyethylene glycerol ether, 0.15 part of sodium polycarboxylate, 31000.15 parts of defoamer, KH 5601.5 parts of silane coupling agent and 22 parts of water; the powder comprises the following components in parts by weight: 33 parts of portland slag cement, 12 parts of palygorskite powder, 12 parts of cordierite powder, 6 parts of zircon powder, 6 parts of waste gypsum, 1.2 parts of lignin and 0.4 part of benzoin ethyl ether.
The particle size of the palygorskite powder is 120 meshes; the particle size of the cordierite powder is 130 meshes; the particle size of the zircon powder is 130 meshes; the particle size of the waste gypsum is 250 meshes.
The preparation method of the polycondensate of the 2, 6-diaminopurine nucleoside/5, 5-dimethyl-1, 3-di (ethylene oxide methyl) imidazolidine-2, 4-diketone comprises the following steps: adding 2, 6-diaminopurine nucleoside, 5-dimethyl-1, 3-di (oxiranylmethyl) imidazolidine-2, 4-dione and sodium hydroxide into N, N-dimethylformamide, stirring and reacting at 73 ℃ for 11 hours, filtering to remove insoluble substances, and performing rotary evaporation to remove the solvent to obtain a polycondensate of 2, 6-diaminopurine nucleoside/5, 5-dimethyl-1, 3-di (oxiranylmethyl) imidazolidine-2, 4-dione; the molar ratio of the 2, 6-diaminopurine nucleoside to the 5, 5-dimethyl-1, 3-di (oxiranylmethyl) imidazolidine-2, 4-dione to the sodium hydroxide to the N, N-dimethylformamide is 1:1:0.15: 7.
The preparation method of the environment-friendly polymer cement waterproof coating is characterized by comprising the following steps of:
step S1, proportionally mixing the raw materials of ammonium in the liquid material, and stirring for 23 minutes at 65 ℃ and at the rotating speed of 900r/min to obtain liquid material components;
step S2, mixing the components in the powder material according to a proportion, and uniformly stirring to obtain powder material components;
and S3, when in use, uniformly mixing the liquid material component prepared in the step S1 and the powder material component prepared in the step S2 according to the proportion.
Example 3
An environment-friendly polymer cement waterproof coating is characterized by being prepared by mixing liquid materials and powder materials according to the mass ratio of 1: 1.5; the liquid material comprises the following raw materials in parts by weight: 50 parts of vinyl-terminated aqueous polyurethane emulsion, 15 parts of 2, 6-diaminopurine nucleoside/5, 5-dimethyl-1, 3-di (ethylene oxide methyl) imidazolidine-2, 4-dione polycondensate, 2 parts of allyl 2-chloro-1, 1, 2-trifluoroethyl ether, 2.5 parts of butyl acetate, 3.5 parts of nonylphenol polyoxyethylene ether, 0.2 part of sodium hexametaphosphate, 0880.2 parts of defoaming agent BYK, KH 5702 parts of silane coupling agent and 25 parts of water; the powder comprises the following components in parts by weight: 35 parts of pozzolanic portland cement, 15 parts of palygorskite powder, 15 parts of cordierite powder, 7 parts of zircon powder, 7.5 parts of waste gypsum, 1.5 parts of lignin and 0.45 part of bis-benzoylphenylphosphine oxide.
The particle size of the palygorskite powder is 150 meshes; the particle size of the cordierite powder is 150 meshes; the particle size of the zircon powder is 160 meshes; the particle size of the waste gypsum is 300 meshes.
The preparation method of the polycondensate of the 2, 6-diaminopurine nucleoside/5, 5-dimethyl-1, 3-di (ethylene oxide methyl) imidazolidine-2, 4-diketone comprises the following steps: adding 2, 6-diaminopurine nucleoside, 5-dimethyl-1, 3-di (oxiranylmethyl) imidazolidine-2, 4-dione and potassium carbonate into N, N-dimethylacetamide, stirring at 75 ℃ for reaction for 13 hours, filtering to remove insoluble substances, and performing rotary evaporation to remove the solvent to obtain a 2, 6-diaminopurine nucleoside/5, 5-dimethyl-1, 3-di (oxiranylmethyl) imidazolidine-2, 4-dione polycondensate; the molar ratio of the 2, 6-diaminopurine nucleoside to the 5, 5-dimethyl-1, 3-di (oxiranylmethyl) imidazolidine-2, 4-dione to the potassium carbonate to the N, N-dimethylacetamide is 1:1:0.2: 9.
The preparation method of the environment-friendly polymer cement waterproof coating is characterized by comprising the following steps of:
step S1, proportionally mixing the raw materials of ammonium in the liquid material, and stirring for 25 minutes at 70 ℃ and the rotating speed of 1000r/min to obtain liquid material components;
step S2, mixing the components in the powder material according to a proportion, and uniformly stirring to obtain powder material components;
and S3, when in use, uniformly mixing the liquid material component prepared in the step S1 and the powder material component prepared in the step S2 according to the proportion.
Example 4
An environment-friendly polymer cement waterproof coating is characterized by being prepared by mixing liquid materials and powder materials according to the mass ratio of 1: 1.8; the liquid material comprises the following raw materials in parts by weight: 58 parts of vinyl-terminated aqueous polyurethane emulsion, 18 parts of 2, 6-diaminopurine nucleoside/5, 5-dimethyl-1, 3-di (ethylene oxide methyl) imidazolidine-2, 4-dione polycondensate, 2.8 parts of allyl 2-chloro-1, 1, 2-trifluoroethyl ether, 3.5 parts of cosolvent, 4.5 parts of emulsifier, 0.25 part of dispersant, 0.25 part of defoamer, 2.8 parts of coupling agent and 28 parts of water; the powder comprises the following components in parts by weight: 38 parts of cement, 18 parts of palygorskite powder, 18 parts of cordierite powder, 9 parts of zircon powder, 9 parts of waste gypsum, 1.9 parts of lignin and 0.55 part of photoinitiator.
The cosolvent is formed by mixing propylene glycol, glycerol and butyl acetate according to the mass ratio of 1:2: 3; the emulsifier is formed by mixing sodium dodecyl benzene sulfonate, polyoxypropylene polyoxyethylene glycerol ether and nonylphenol polyoxyethylene ether according to the mass ratio of 1:3: 2; the dispersing agent is formed by mixing sodium hexametaphosphate and sodium polycarboxylate according to the mass ratio of 3: 5; the defoaming agent is formed by mixing tributyl phosphate, a defoaming agent Demodex 3100 and a defoaming agent BYK088 according to the mass ratio of 1:4: 5; the coupling agent is formed by mixing a silane coupling agent KH550, a silane coupling agent KH560 and a silane coupling agent KH570 according to the mass ratio of 1:1: 3; the photoinitiator is formed by mixing benzoin dimethyl ether, benzoin ethyl ether and bis-benzoyl phenyl phosphine oxide according to the mass ratio of 2:3: 5; the cement is formed by mixing ordinary portland cement, slag portland cement, pozzolanic portland cement and fly ash portland cement according to a mass ratio of 1:2:3: 4.
The particle size of the palygorskite powder is 190 meshes; the particle size of the cordierite powder is 190 meshes; the particle size of the zircon powder is 190 meshes; the particle size of the waste gypsum is 380 meshes.
The preparation method of the polycondensate of the 2, 6-diaminopurine nucleoside/5, 5-dimethyl-1, 3-di (ethylene oxide methyl) imidazolidine-2, 4-diketone comprises the following steps: adding 2, 6-diaminopurine nucleoside, 5-dimethyl-1, 3-di (oxiranylmethyl) imidazolidine-2, 4-dione and an alkaline catalyst into a high boiling point solvent, stirring and reacting at 78 ℃ for 14 hours, filtering to remove insoluble substances, and performing rotary evaporation to remove the solvent to obtain a polycondensate of the 2, 6-diaminopurine nucleoside/5, 5-dimethyl-1, 3-di (oxiranylmethyl) imidazolidine-2, 4-dione; the molar ratio of the 2, 6-diaminopurine nucleoside to the 5, 5-dimethyl-1, 3-di (oxiranylmethyl) imidazolidine-2, 4-dione to the basic catalyst to the high-boiling solvent is 1:1:0.28: 11; the alkaline catalyst is formed by mixing sodium carbonate, sodium hydroxide, potassium carbonate and potassium hydroxide according to the mass ratio of 2:3:1: 2; the high boiling point solvent is formed by mixing dimethyl sulfoxide, N-dimethylformamide and N, N-dimethylacetamide according to a mass ratio of 2:1: 3.
The preparation method of the environment-friendly polymer cement waterproof coating is characterized by comprising the following steps of:
step S1, mixing the raw materials of ammonium in the liquid material in proportion, and stirring for 28 minutes at 78 ℃ and 1150r/min to obtain liquid material components;
step S2, mixing the components in the powder material according to a proportion, and uniformly stirring to obtain powder material components;
and S3, when in use, uniformly mixing the liquid material component prepared in the step S1 and the powder material component prepared in the step S2 according to the proportion.
Example 5
An environment-friendly polymer cement waterproof coating is characterized by being prepared by mixing liquid materials and powder materials according to the mass ratio of 1: 2; the liquid material comprises the following raw materials in parts by weight: 60 parts of vinyl-terminated aqueous polyurethane emulsion, 20 parts of 2, 6-diaminopurine nucleoside/5, 5-dimethyl-1, 3-di (ethylene oxide methyl) imidazolidine-2, 4-dione polycondensate, 3 parts of allyl 2-chloro-1, 1, 2-trifluoroethyl ether, 4 parts of glycerol, 5 parts of sodium dodecyl benzene sulfonate, 0.3 part of polycarboxylic acid sodium salt, 0.78 part of defoamer BYK 0880.3 part, 5603 parts of silane coupling agent KH and 30 parts of water; the powder comprises the following components in parts by weight: 40 parts of fly ash portland cement, 20 parts of palygorskite powder, 20 parts of cordierite powder, 10 parts of zircon powder, 10 parts of waste gypsum, 2 parts of lignin and 0.6 part of benzoin ethyl ether.
The particle size of the palygorskite powder is 200 meshes; the particle size of the cordierite powder is 200 meshes; the particle size of the zircon powder is 200 meshes; the particle size of the waste gypsum is 400 meshes.
The preparation method of the polycondensate of the 2, 6-diaminopurine nucleoside/5, 5-dimethyl-1, 3-di (ethylene oxide methyl) imidazolidine-2, 4-diketone comprises the following steps: adding 2, 6-diaminopurine nucleoside, 5-dimethyl-1, 3-di (oxiranylmethyl) imidazolidine-2, 4-dione and potassium hydroxide into N, N-dimethylformamide, stirring at 80 ℃ for reaction for 15 hours, filtering to remove insoluble substances, and performing rotary evaporation to remove the solvent to obtain a polycondensate of 2, 6-diaminopurine nucleoside/5, 5-dimethyl-1, 3-di (oxiranylmethyl) imidazolidine-2, 4-dione; the molar ratio of the 2, 6-diaminopurine nucleoside to the 5, 5-dimethyl-1, 3-di (oxiranylmethyl) imidazolidine-2, 4-dione to the potassium hydroxide to the N, N-dimethylformamide is 1:1:0.3: 12.
The preparation method of the environment-friendly polymer cement waterproof coating is characterized by comprising the following steps of:
step S1, proportionally mixing the raw materials of ammonium in the liquid material, and stirring for 30 minutes at 80 ℃ and the rotating speed of 1200r/min to obtain liquid material components;
step S2, mixing the components in the powder material according to a proportion, and uniformly stirring to obtain powder material components;
and S3, when in use, uniformly mixing the liquid material component prepared in the step S1 and the powder material component prepared in the step S2 according to the proportion.
Comparative example 1
This example provides an environmentally friendly polymer cement waterproofing paint, which is formulated and prepared in substantially the same manner as in example 1, except that no 2, 6-diaminopurine nucleoside/5, 5-dimethyl-1, 3-di (oxiranylmethyl) imidazolidine-2, 4-dione condensation polymer is added.
Comparative example 2
This example provides an environmentally friendly polymer cement waterproofing paint, which has substantially the same formulation and preparation method as example 1, except that allyl 2-chloro-1, 1, 2-trifluoroethyl ether is not added.
Comparative example 3
This example provides an environmentally friendly polymer cement waterproofing paint, which has a formulation and a preparation method substantially the same as those of example 1, except that no palygorskite powder or cordierite powder is added.
Comparative example 4
This example provides an environmentally friendly polymer cement waterproofing paint, which has a formulation and a preparation method substantially the same as those of example 1, except that no zircon powder and no waste gypsum are added.
Comparative example 5
This example provides an environment-friendly polymer cement waterproof coating, the formulation and preparation method of which are the same as those in example 1 of the invention patent CN 104402360B in China.
The environmental-friendly polymer cement waterproof coatings prepared in the above examples 1-4 and comparative examples 1-5 were tested for tensile strength, adhesive strength and water impermeability according to the GB/T23445-2009 polymer cement waterproof coating test method, and the results are shown in the following Table 1.
As can be seen from Table 1, the environment-friendly polymer cement waterproof coating disclosed by the embodiment of the invention has better mechanical property and bonding strength, and is impermeable; this is a result of the synergistic effect of 2, 6-diaminopurine nucleoside/5, 5-dimethyl-1, 3-di (oxiranylmethyl) imidazolidine-2, 4-dione polycondensate, allyl 2-chloro-1, 1, 2-trifluoroethyl ether, palygorskite powder, cordierite powder, zircon powder and waste gypsum.
TABLE 1
| Item | Tensile strength | Adhesive strength | Impermeability (0.3MPa, 30min) |
| Unit of | MPa | MPa | Is impervious to water |
| Example 1 | 4.1 | 2.3 | Is impervious to water |
| Example 2 | 4.3 | 2.5 | Is impervious to water |
| Example 3 | 4.5 | 2.6 | Is impervious to water |
| Example 4 | 4.8 | 2.8 | Is impervious to water |
| Example 5 | 5.0 | 3.0 | Is impervious to water |
| Comparative example 1 | 3.5 | 1.6 | Is impervious to water |
| Comparative example 2 | 3.3 | 2.1 | Is impervious to water |
| Comparative example 3 | 3.7 | 1.8 | Is impervious to water |
| Comparative example 4 | 3.8 | 1.7 | Is impervious to water |
| Comparative example 5 | 1.8 | 1.5 | Is impervious to water |
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. An environment-friendly polymer cement waterproof coating is characterized by being prepared by mixing liquid materials and powder materials according to the mass ratio of 1 (0.9-2); the liquid material comprises the following raw materials in parts by weight: 40-60 parts of vinyl-terminated aqueous polyurethane emulsion, 10-20 parts of 2, 6-diaminopurine nucleoside/5, 5-dimethyl-1, 3-di (ethylene oxide methyl) imidazolidine-2, 4-dione polycondensate, 1-3 parts of allyl 2-chloro-1, 1, 2-trifluoroethyl ether, 1-4 parts of cosolvent, 2-5 parts of emulsifier, 0.1-0.3 part of dispersant, 0.1-0.3 part of defoamer, 1-3 parts of coupling agent and 20-30 parts of water; the powder comprises the following components in parts by weight: 30-40 parts of cement, 10-20 parts of palygorskite powder, 10-20 parts of cordierite powder, 5-10 parts of zircon powder, 5-10 parts of waste gypsum, 1-2 parts of lignin and 0.3-0.6 part of photoinitiator.
2. The environment-friendly polymer cement waterproof coating as claimed in claim 1, wherein the cosolvent is at least one of propylene glycol, glycerin and butyl acetate; the emulsifier is at least one of sodium dodecyl benzene sulfonate, polyoxypropylene polyoxyethylene glycerol ether and nonylphenol polyoxyethylene ether.
3. The environment-friendly polymer cement waterproof coating material as claimed in claim 1, wherein the dispersant is at least one of sodium hexametaphosphate and sodium polycarboxylate; the antifoaming agent is one or more of tributyl phosphate, antifoaming agent Demodex 3100 and antifoaming agent BYK 088.
4. The environment-friendly polymer cement waterproof coating material as claimed in claim 1, wherein the coupling agent is at least one of a silane coupling agent KH550, a silane coupling agent KH560 and a silane coupling agent KH 570; the photoinitiator is at least one of benzoin dimethyl ether, benzoin ethyl ether and bis-benzoyl phenyl phosphine oxide.
5. The environment-friendly polymer cement waterproof paint as claimed in claim 1, wherein the cement is at least one of portland cement, portland slag cement, portland pozzolanic cement and portland fly ash cement.
6. The environment-friendly polymer cement waterproof coating as claimed in claim 1, wherein the particle size of the palygorskite powder is 100-200 mesh; the particle size of the cordierite powder is 100-200 meshes; the particle size of the zircon powder is 100-200 meshes; the particle size of the waste gypsum is 200-400 meshes.
7. The environment-friendly polymer cement waterproof paint according to claim 1, wherein the preparation method of the 2, 6-diaminopurine nucleoside/5, 5-dimethyl-1, 3-di (oxiranylmethyl) imidazolidine-2, 4-dione polycondensate comprises the following steps: adding 2, 6-diaminopurine nucleoside, 5-dimethyl-1, 3-di (oxiranylmethyl) imidazolidine-2, 4-dione and an alkaline catalyst into a high boiling point solvent, stirring and reacting at 70-80 ℃ for 10-15 hours, filtering to remove insoluble substances, and removing the solvent by rotary evaporation to obtain a 2, 6-diaminopurine nucleoside/5, 5-dimethyl-1, 3-di (oxiranylmethyl) imidazolidine-2, 4-dione polycondensate.
8. The environment-friendly polymer cement waterproof paint as claimed in claim 7, wherein the molar ratio of the 2, 6-diaminopurine nucleoside, 5-dimethyl-1, 3-di (oxiranylmethyl) imidazolidine-2, 4-dione, basic catalyst and high boiling point solvent is 1:1 (0.1-0.3): 6-12.
9. The environment-friendly polymer cement waterproof coating material as claimed in claim 7, wherein the basic catalyst is at least one of sodium carbonate, sodium hydroxide, potassium carbonate and potassium hydroxide; the high boiling point solvent is at least one of dimethyl sulfoxide, N-dimethylformamide and N, N-dimethylacetamide.
10. The environment-friendly polymer cement waterproof coating material as claimed in any one of claims 1 to 9, wherein the preparation method of the environment-friendly polymer cement waterproof coating material comprises the following steps:
s1, proportionally mixing the raw materials of ammonium in the liquid material, and stirring for 20-30 minutes at the temperature of 60-80 ℃ and the rotating speed of 800-;
step S2, mixing the components in the powder material according to a proportion, and uniformly stirring to obtain powder material components;
and S3, when in use, uniformly mixing the liquid material component prepared in the step S1 and the powder material component prepared in the step S2 according to the proportion.
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