CN111732861A - Boiling water resistant glass coating material and preparation method thereof - Google Patents
Boiling water resistant glass coating material and preparation method thereof Download PDFInfo
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- 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
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
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- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/006—Surface treatment of glass, not in the form of fibres or filaments, by coating with materials of composite character
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- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/28—Surface treatment of glass, not in the form of fibres or filaments, by coating with organic material
- C03C17/30—Surface treatment of glass, not in the form of fibres or filaments, by coating with organic material with silicon-containing compounds
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/80—Processes for incorporating ingredients
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- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2217/00—Coatings on glass
- C03C2217/70—Properties of coatings
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2218/00—Methods for coating glass
- C03C2218/10—Deposition methods
- C03C2218/11—Deposition methods from solutions or suspensions
- C03C2218/112—Deposition methods from solutions or suspensions by spraying
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- 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 boiling water resistant glass coating material and a preparation method thereof, wherein water-soluble epoxy modified acrylic resin is firstly stirred and dispersed, then amine neutralizer is added, the cosolvent is added after the stirring and the dispersion are carried out again, the water-based antifoaming agent is added after the stirring and the dispersion are continued, then the water-based wetting agent is added after the stirring and the dispersion are carried out continuously, deionized water is added after the stirring and the dispersion are continued, finally the water-based amino resin is added after the stirring and the dispersion are carried out, and the stirring is carried out uniformly, so that a; mixing the component A, the component B, water and a coloring agent to obtain a boiling water resistant water boiling glass coating material; the component B is a silane coupling agent. The feeding sequence and the process parameters of the invention can ensure that the water-soluble resin is better dissolved in water to reduce the use of a cosolvent, and simultaneously ensure that all the additives are more uniformly and stably dispersed in a coating system, thereby ensuring the product quality. The paint provided by the invention can be added with color paste or color concentrates, has good color development and vividness, is free from abnormity after being dried and boiled for 2h, and particularly solves the problems that the existing water-based glass paint in the market is free from adhesion and boiling water boiling after being added with sky blue color concentrates.
Description
Technical Field
The invention belongs to the coating technology, and particularly relates to a boiling water resistant glass coating material and a preparation method thereof.
Background
The glass coating is widely applied to cosmetic glass bottles, wine bottles, gift decorative bottles and the like in daily life, and plays a role in decorating attractiveness, covering the defects of glass or protecting the glass from being scratched; when the glass products are used, the glass products are in direct contact with the surface coatings of the glass products, and the requirements on the surface coatings of the glass products are increasingly strict with the improvement of awareness of environmental protection, health and safety. At present, according to incomplete statistics of the market, 70-80% of the glass coating is water-based coating, wherein 80-90% of the glass coating is water-soluble glass coating, the balance is water-based dispersion glass coating, the water-based dispersion glass coating is diluted by water at a ratio of 100:0-10 during construction, the dilution ratio is small, the cost is higher, the brightness and the vividness of a dried coating are slightly poor, and the glass coating is rarely used in the market at present; the water-based glass coating takes water as a solvent, is different from the traditional oily glass coating, has small smell, has less volatilization of an organic solvent during baking, and cannot cause physical damage to a user; because water is used as a solvent, the cost is lower, the method is safe and environment-friendly, and the advantages of cost and environment protection can be brought to enterprises.
The existing water-based glass paint has several defects and shortcomings: no matter the water-soluble glass paint or the water-based dispersion glass paint is dried, the coating is not water-resistant or only has normal water resistance, when the water-soluble glass paint or the water-based dispersion glass paint is soaked in boiling water at 100 ℃ for boiling test for 0.5H, a paint film can fall off, wrinkle and swell or the water resistance of a Baige test is 0B-4B, which cannot meet the requirement of 5B, and the coating of a glass product can often contact with the boiling water in practice, so that the surface coating is damaged; particularly, after the sky blue color essence (1% -20%) is added, the coating is dried, soaked in boiling water at 100 ℃ and boiled in water for 0.5H, and then the adhesion is tested, and the result is 0B, which causes great trouble to users; secondly, the existing aqueous dispersion glass paint has poor miscibility of the dispersion resin and the cosolvent in the components and is easy to generate a layering phenomenon of the dispersion resin, the cosolvent and water, so that the paint is easy to deteriorate in the storage process and is uneven in construction and spraying, the cosolvent is added little or not, the large-area spraying application is difficult to perform in the actual application, the productivity is too low, and the market demand cannot be met; thirdly, the addition of the cosolvent of most of the existing water-soluble glass coatings is too much, so that the VOC in the practical spraying application is more than 200g/L and exceeds the standard of national environment-friendly coatings, and the dried coatings have the phenomena of orange peel, low gloss and insufficient bright color due to unreasonable matching of different cosolvents; fourthly, most of the water-based glass coatings on the current market need to be baked at 180 ℃ at the lowest temperature of 170 ℃, and part of the water-based glass coatings also need to be added with a drier or a cooling agent, so that the energy consumption is improved and the cost is increased.
Disclosure of Invention
The invention discloses a boiling water resistant glass coating material and a preparation method and application thereof, wherein the water soluble glass coating material mainly comprises water soluble epoxy modified acrylic resin matched with waterborne amino resin, is neutralized by ammonia alkaline solvent, diluted by deionized water, and added with 1-3 wt% of silane coupling agent and color paste; when the water-soluble glass paint is prepared into a finished product, the water-soluble glass paint can be directly used, and color paste or color concentrate can be added according to the requirements to adjust the proportion according to different color requirements.
The invention discloses a boiling water resistant glass coating material, which is prepared by mixing a component A, a component B, water and a coloring agent; the component A consists of water-soluble epoxy modified acrylic resin, water-based amino resin, an amine neutralizer, a water-based wetting agent, a water-based defoaming agent, a cosolvent and deionized water; the component B is a silane coupling agent; the colorant is color paste or color concentrate.
The invention discloses a preparation method of a boiling water resistant glass coating material, which comprises the following steps of mixing a component A, a component B, water and a coloring agent to obtain a boiling water resistant glass coating material; the component A consists of water-soluble epoxy modified acrylic resin, water-based amino resin, an amine neutralizer, a water-based wetting agent, a water-based defoaming agent, a cosolvent and deionized water; the component B is a silane coupling agent.
The invention discloses an application of the boiling water resistant glass coating material in preparing a boiling water resistant glass coating, wherein the boiling water resistant glass coating is a colored paint coating. For example, the A component and the B component are mixed with water and a coloring agent to obtain a boiling water boiling resistant glass coating material; then coating the boiling water resistant glass coating material on glass, and drying to obtain a boiling water resistant glass coating; the component A consists of water-soluble epoxy modified acrylic resin, water-based amino resin, an amine neutralizer, a water-based wetting agent, a water-based defoaming agent, a cosolvent and deionized water; the component B is a silane coupling agent; the colorant is color paste or color concentrate. The invention coats the boiling water resistant glass coating material on the glass by the conventional technology, and adopts the existing coating material coating method, such as a spraying method, but the invention solves the problems that the prior art is difficult to spray and apply in a large area in practical application, so that the productivity is too low and the market demand cannot be met, the disclosed paint blended colored paint can be sprayed and applied in a large area, the VOC in the practical spraying application is less than or equal to 200g/L, the national environment-friendly paint standard is met, the different cosolvents are reasonably matched, the dried coating has no orange peel, high gloss and bright color, the coating can be cured by drying at 150 ℃ for 20 minutes to obtain the coating, particularly, after the coating is soaked in boiling water at 100 ℃ for boiling test for 2 hours, the paint film can not fall off or wrinkle and hair, and the Baige test reaches the 5B requirement.
In the invention, the mass parts of the component A are 100 parts, the mass parts of the water-soluble epoxy modified acrylic resin, the water-soluble amino resin, the amine neutralizer, the water-soluble wetting agent, the water-soluble defoamer, the cosolvent and the deionized water are respectively 30-50 parts, 6-15 parts, 0.4-8 parts, 0.2-0.5 part, 5-10 parts and the balance, preferably, the mass parts of the water-soluble epoxy modified acrylic resin, the water-soluble amino resin, the amine neutralizer, the water-soluble wetting agent, the water-soluble defoamer, the cosolvent and the deionized water are respectively 35-45 parts, 8-12 parts, 2-5 parts, 0.3-0.4 part, 6-8 parts and the balance; the dosage of the component B is 1-3% of the mass of the component A. The water-soluble epoxy modified acrylic resin, the water-based amino resin, the amine neutralizer, the water-based wetting agent, the water-based defoaming agent, the cosolvent and the deionized water are conventional commercial products.
In the boiling water resistant glass coating material, the mass ratio of the component A, the component B, water and the coloring agent is 100:1-3: 20-30: 1-20. The paint provided by the invention can be added with color paste or color concentrates, has good color development and vividness, is free from abnormity after being dried and boiled for 2h, and particularly solves the problems that the existing water-based glass paint in the market is free from adhesion and boiling water boiling after being added with sky blue color concentrates. Mixing the component A, the component B, water or the component A, the component B, the water and the coloring agent by a stirring and dispersing method to prepare a boiling water boiling resistant glass coating material; preferably, the stirring rate is 800-.
According to different characteristics of the resins, the performance of resisting 100 ℃ boiling water soaking and boiling for 2 hours can be improved by proper matching of a proper proportion, and meanwhile, the water-soluble epoxy modified acrylic resin can also have high gloss, high fullness, good flexibility, high hardness and excellent recoatability; whether the varnish or the colored paint added with color paste or color concentrate comprises sky blue color concentrate, after the coating is baked at 150 ℃ for 20min, the coating is cooled for 30min, a boiling water boiling test at 100 ℃ is carried out for 2h, the surface of the coating keeps the luster, fullness and transparency before the boiling water boiling test, the phenomena of falling, wrinkling and swelling are not generated when the appearance of the coating is tested, and a hundred-grid test is carried out after the coating is cooled, so that the result is 5B; the water-soluble resin can resist boiling water to reach the performance standard of 2h after being combined with the auxiliary agent, and can be cured at 150 ℃ for 20min without adding a drier or a cooling agent, so that the problems that the coating in the prior art cannot resist boiling water and has high curing temperature are solved.
The waterborne amino resin used in the invention is methyl-etherified high-imino melamine waterborne amino resin, specifically one or more of chemical engineering products of Changchun MR-625 and MR-627, Zhan New CYMEL-325, CYMEL-327 and CYMEL-385, has good solubility in water, reduces the usage amount of cosolvent, reduces the VOC content, can be effectively crosslinked with hydroxyl and carboxyl functional groups in main resin, does not need to add an additional acid catalyst, has high reaction activity, can be effectively cured under the temperature condition of 100 ℃ and 150 ℃, and has higher self-condensation tendency, so that the coating has very good gloss and boiling water resistance.
The amine neutralizer used in the invention is one or more of modesty DMEA and AMP-95, and the components of modesty DMEA and AMP-95 are dimethylethanolamine or alcohol amine organic matters, so that the water-soluble resin can be neutralized, and the resin water dilutability is excellent; in addition, the resin can be provided with excellent storage stability.
The water-based wetting agent used by the invention is one or more of BYK-346, BYK-333, Yingchuanggao Tego 270 and TegoKH 245, and the wetting agent used by the invention has low molecular weight and high wetting activity; the function of the paint can enable the paint film to better wet the glass substrate, so that the paint can be more uniformly spread on the surface of the glass material, the glass material is relatively better wetted, and the using amount of the wetting agent can be reduced.
The water-based defoaming agent used in the invention is one or more of ByK-028, BYK-022, Tego810, Yongdi Qiao Tego and moderate DAPRO DF 677, the main components of the water-based defoaming agent are mineral oil, wax and organic silicon, and the water-based defoaming agent has good effects of eliminating micro bubbles and breaking bubbles in the coating; the baking temperature of the water-based glass coating is more than 100 ℃, so that micro bubbles are easily generated on the surface of the coating during baking, particularly, the micro bubbles are easily generated on the surface of the coating during thick coating, and the use of the water-based defoaming agent avoids the defect that the coating generates micro bubbles during construction and baking after construction.
The cosolvent used in the invention is one or more of ethanol, isopropanol, ethylene glycol butyl ether and propylene glycol monomethyl ether; the characteristics of the epoxy resin and the epoxy resin can have co-volatility and compatibility with water, so that the surface drying of a coating film is accelerated, the micro-bubble defect is not easy to generate during baking, and the water-soluble resin has better color development; the usage amount of the cosolvent in the paint formula is less than or equal to 15 wt%, and the VOC (volatile organic compound) in the spraying application is less than 200g/L and meets the standard of the environment-friendly paint; when the mass ratio of the ethanol, the isopropanol, the ethylene glycol butyl ether and the propylene glycol monomethyl ether is as follows: 5-20:5-30: when the ratio of the cosolvent to the water-soluble resin is 20-40:5-30, the cosolvent has the best solubility to the water-soluble resin used in the invention, the content of the cosolvent used is the lowest, and the dried coating is flat and smooth, high in gloss and bright in color, the cosolvent is reasonably matched for use, the co-volatility with water is improved while the VOC content is reduced, the efficiency of large-area spraying is improved, the productivity is improved, the coating is not easy to generate defects, particularly the mixing capacity of components is improved, the reaction effect is improved, and the adhesive force of the coating is improved.
The deionized water used in the invention removes cations such as sodium, calcium, iron and the like and anions such as chlorine, bromine and the like, and greatly improves the storage stability of the coating.
The silane coupling agent used in the invention is: one or more of KH-560, FD-560A, MP200 and SCA-E87M; the components of the water-soluble resin are epoxy modified polysiloxane, so that the water-soluble resin has good epoxy reaction activity, and the mechanical properties of the water-soluble resin are improved, such as: bending strength, impact strength and the like, and prevents the coating from being too brittle, easy to fall off and not resistant to impact; meanwhile, the adhesive force between the resin and the glass material is greatly improved, and the glass has the performances of boiling water boiling resistance, cold water soaking resistance and the like.
The preparation method of the boiling water resistant glass coating material comprises the following steps of firstly stirring and dispersing the water-soluble epoxy modified acrylic resin, adding the amine neutralizer, stirring and dispersing again, adding the cosolvent, continuously stirring and dispersing, adding the water-based defoaming agent, stirring and dispersing, adding the water-based wetting agent, continuously stirring and dispersing, adding the deionized water, stirring and dispersing finally, adding the water-based amino resin, and stirring uniformly to obtain a component A; and mixing the component A, the component B, water and the coloring agent to obtain the boiling water resistant glass coating material. Wherein the mixing is stirring dispersion, the stirring parameters are conventional techniques, and the invention is not limited.
Preferably, the stirring rate for the first stirring and dispersing is 600-800rpm for 2-3 minutes, the stirring rate for the second stirring and dispersing is 600-800rpm for 3-5 minutes, the stirring rate for the continuous stirring and dispersing is 600-800rpm for 3-5 minutes, the stirring rate for the subsequent stirring and dispersing is 1000-1200rpm for 15-20 minutes, the stirring rate for the continuous stirring and dispersing is 800-1000rpm for 3-5 minutes, the stirring rate for the final stirring and dispersing is 600-800rpm for 2-3 minutes, and the stirring rate for uniform stirring is 600-800rpm for 5-10 minutes. The feeding sequence and the process parameters can ensure that the water-soluble resin is better dissolved in water to reduce the use of a cosolvent, and simultaneously ensure that all the additives are more uniformly and stably dispersed in a coating system, thereby ensuring the product quality.
1. The water-based glass coating adopts the unique epoxy modified water-soluble acrylic resin, and is reasonably matched and matched with the water-based amino resin, so that the boiling water resistance of the coating can be greatly improved, no matter color paste or color concentrate with any color is added, the coating can be soaked in boiling water at 100 ℃ after being dried for boiling test for 2 hours, the surface coating cannot fall off, wrinkle and swell, the original gloss is kept, and the service environment of a glass product is greatly improved by adopting a Baige test 5B;
2. the water-based glass coating can be completely dried at 150 ℃ for 20min without adding a drier or a cooling agent, so that the energy consumption is reduced, and the cost is reduced;
3. the water-based glass paint disclosed by the invention is few in raw material variety, simple in preparation process, capable of reducing the content of the cosolvent through reasonable collocation and free of influence on the gloss, color, surface flatness and the like of a dried coating. The paint can be added with any color paste or color concentrate, and has good color development and vividness; the coating is resistant to boiling water for 2 hours after being dried without abnormity, and particularly solves the problems that the common water-based glass coating in the market is not attached and is not resistant to boiling water after being added with sky blue color essence.
Drawings
FIG. 1 is a photograph showing adhesion between a boiling water resistant water glass coating (reference 1) and a commercially available water glass coating (reference 2) of example two;
FIG. 2 is a photograph showing adhesion tests after boiling water resistance of the water-soluble glass coating (reference numeral 1), the commercially available water-soluble glass coating (reference numeral 2) and the commercially available water-soluble glass dispersion layer (reference numeral 3) in the examples.
Detailed Description
The preparation method of the boiling water resistant glass coating material disclosed by the invention comprises the following steps of mixing the component A, the component B, water and a coloring agent to obtain the boiling water resistant glass coating material; the component A consists of water-soluble epoxy modified acrylic resin, water-based amino resin, an amine neutralizer, a water-based wetting agent, a water-based defoaming agent, a cosolvent and deionized water; the component B is a silane coupling agent. The boiling water resistant glass coating material is coated on glass by a conventional spraying method and dried to obtain the boiling water resistant glass coating. The raw materials of the invention are all commercial products.
Examples
Table 1 examples and comparative formula A Components, 100 parts total
Adding the water-soluble epoxy modified acrylic resin in the table 1 into a container, and dispersing for 2 minutes at a stirring speed of 800 rpm; then adding an amine neutralizer at the stirring speed of 800rpm, and dispersing for 4 minutes; then adding a cosolvent at the stirring speed of 600rpm, and dispersing for 4 minutes; then adding the aqueous defoaming agent at the stirring speed of 1000rpm, and dispersing for 20 minutes; then adding the aqueous wetting agent at the stirring speed of 1000rpm, and dispersing for 4 minutes; then deionized water is added under the stirring speed of 700rpm, and the mixture is dispersed for 2 minutes; then, the aqueous amino resin was added thereto at a stirring speed of 800rpm and dispersed for 8 minutes to obtain a component A of the boiling water resistant glass coating compositions of examples one to three and a component A of the aqueous glass coating compositions of comparative example one and two, respectively.
Respectively stirring and dispersing the component A of the boiling water boiling resistant glass coating material of the first embodiment to the component A of the water glass coating material of the first comparative example and the component A of the water glass coating material of the second comparative example with the component B, water and a coloring agent by a conventional way, and mixing to obtain a boiling water boiling resistant glass coating material which corresponds to the first-color paint of the example, the second-color paint of the example, the three-color paint of the example, the first-color paint of the comparative example and the second-color paint of the comparative example; wherein, the following coloring agents are selected, and sky blue color concentrate (Shanghai brocade Sundai science and technology Limited RB-61) is adopted in the first embodiment, the second embodiment and the first comparative example, and another color paste (Shanghai pigment science and technology Limited NW-1457) is adopted in the third embodiment and the second comparative example; in all examples, the mass ratio of the component A to the component B to the water is 100:2:30, and in the colored paints of the example two, the comparative example one, the example three and the comparative example two, the amount of the colorant is 10% of the mass of the component A, and in the colored paint of the example, the amount of the colorant is 20% of the mass of the component A. The B component of the first example, the first comparative example and the second comparative example is KH-560, the B component of the second example is FD-560A, and the B component of the third example is MP 200.
And respectively coating the colored paints on the same conventional glass by a conventional spraying method, and drying at 150 ℃ for 20min to obtain the boiling water resistant glass coating. The same general glass was coated with a commercially available water-based glass paint (manufacturer: some of Hangzhou Mingquan New Material, trade name: water-based brightening paint) by the same general spraying method at 170 ℃ for 20min to obtain a commercially available water-based glass coating (with 10% sky blue tinctorial). The same conventional spray coating process was used to coat a commercial aqueous dispersion (aqueous glass paint, Hangzhou Zeyu paint science and technology Co., Ltd.) onto the same conventional glass at 170 ℃ for 20min to obtain a commercial aqueous glass dispersion layer (with 10% sky blue tints).
TABLE 2 Water-borne glass coating Performance test
The performance tests were performed according to the method of Table 2, and the results are shown in Table 3.
Table 3 coating test results
FIG. 1 is a photograph showing adhesion tests between a boiling water resistant glass coating (reference numeral 1) and a commercially available water glass coating (reference numeral 2) in example II, and it can be seen that the coating of the present invention reached 5B and the commercially available coating was 0B. FIG. 2 is a photograph of the water-soluble glass coating (labeled 1) resistant to boiling water, the commercially available water-soluble glass coating (labeled 2) and the commercially available water-soluble glass dispersion layer (labeled 3) after adhesion test after boiling water resistance in the first example, and it can be seen that the coating of the present invention reaches 5B, the two commercially available coatings are 0B, and a small amount of peeling and a large amount of peeling exist respectively; fig. 1 and 2 are both blue.
Compared with the prior art, the invention has high flexibility, and users can spray varnish, add any color paste or color concentrate, especially add sky blue color concentrate which is the most difficult in the market, thereby bringing great convenience to the users in terms of color; the drying performance and general performance test of the coating after being dried at 150 ℃ for 20min are consistent with or even better than those of the water-based glass coating on the market after being baked and dried at 170 ℃ for 20min, and the coating has the excellent performance of resisting boiling water for 2 h; in the aspect of storage stability, the reasonable use amount of the amine neutralizer is used, and the proper proportion of the cosolvent is matched, so that the storage performance of the coating can be stabilized for a long time, the component A can have the minimum shelf life of 12 months, and the shelf life of the component A is improved by 3 times compared with the shelf life of the component A in 3 months on the market.
Claims (10)
1. The boiling water resistant glass coating material is characterized by being prepared by mixing a component A, a component B, water and a coloring agent; the component A consists of water-soluble epoxy modified acrylic resin, water-based amino resin, an amine neutralizer, a water-based wetting agent, a water-based defoaming agent, a cosolvent and deionized water; the component B is a silane coupling agent; the colorant is color paste or color concentrate.
2. The boiling water resistant water glass coating material of claim 1, wherein the preparation method of the boiling water resistant water glass coating material comprises the steps of firstly stirring and dispersing the water-soluble epoxy modified acrylic resin, then adding the amine neutralizer, stirring and dispersing again, then adding the cosolvent, continuously stirring and dispersing, then adding the water defoamer, then stirring and dispersing, then adding the water wetting agent, continuously stirring and dispersing, then adding the deionized water, finally stirring and dispersing, then adding the water amino resin, and stirring uniformly to obtain the component A; and mixing the component A, the component B, water and the coloring agent to obtain the boiling water resistant glass coating material.
3. The boiling water resistant water glass coating material of claim 1, wherein the water soluble epoxy modified acrylic resin, the water soluble amino resin, the amine neutralizer, the water soluble wetting agent, the water soluble defoamer, the cosolvent and the deionized water are respectively 30-50 parts, 6-15 parts, 0.4-8 parts, 0.2-0.5 part, 5-10 parts and the balance by weight based on 100 parts of the component A.
4. The boiling water resistant water glass coating frit according to claim 1, wherein the mass ratio of the component a, the component B, water and the colorant is 100:1-3: 20-30: 1-20.
5. The boiling water resistant glass coating composition of claim 1, wherein the cosolvent is one or more of ethanol, isopropanol, ethylene glycol butyl ether, and propylene glycol monomethyl ether.
6. The boiling water resistant glass coating composition of claim 5, wherein when the cosolvent comprises ethanol, isopropanol, ethylene glycol butyl ether, propylene glycol monomethyl ether; the mass ratio of ethanol, isopropanol, ethylene glycol butyl ether and propylene glycol monomethyl ether is as follows: 5-20:5-30: 20-40:5-30.
7. The preparation method of the boiling water resistant glass coating material of claim 1, comprising the steps of firstly stirring and dispersing the water-soluble epoxy modified acrylic resin, then adding the amine neutralizer, stirring and dispersing again, then adding the cosolvent, continuing to stir and disperse, then adding the water-based antifoaming agent, stirring and dispersing again, then adding the water-based wetting agent, continuing to stir and disperse, then adding the deionized water, finally stirring and dispersing, then adding the water-based amino resin, and stirring uniformly to obtain the component A; and mixing the component A, the component B, water and the coloring agent to obtain the boiling water resistant glass coating material.
8. The preparation method of the boiling water resistant glass coating material according to claim 7, wherein the mass parts of the component A are 100 parts, and the mass parts of the water-soluble epoxy modified acrylic resin, the water-based amino resin, the amine neutralizer, the water-based wetting agent, the water-based antifoaming agent, the cosolvent and the deionized water are respectively 30-50 parts, 6-15 parts, 0.4-8 parts, 0.2-0.5 part, 5-10 parts and the balance; the mass ratio of the component A to the component B to the water to the colorant is 100:1-3: 20-30: 1-20.
9. The method as claimed in claim 7, wherein the stirring rate for the first stirring and dispersing is 800rpm and the time is 2-3 minutes, the stirring rate for the second stirring and dispersing is 800rpm and the time is 3-5 minutes, the stirring rate for the continuous stirring and dispersing is 600-800rpm and the time is 3-5 minutes, the stirring rate for the subsequent stirring and dispersing is 1000-1200rpm and the time is 15-20 minutes, the stirring rate for the continuous stirring and dispersing is 800-1000rpm and the time is 3-5 minutes, and the stirring rate for the final stirring and dispersing is 600-800rpm and the time is 2-3 minutes, and the stirring rate for the uniform stirring is 600-800rpm and the time is 5-10 minutes.
10. Use of a boiling water resistant glass coating according to claim 1 for the preparation of a boiling water resistant glass coating.
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