CN115386251A - Preparation method of inorganic ceramic waterproof paint - Google Patents

Preparation method of inorganic ceramic waterproof paint Download PDF

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Publication number
CN115386251A
CN115386251A CN202211341237.7A CN202211341237A CN115386251A CN 115386251 A CN115386251 A CN 115386251A CN 202211341237 A CN202211341237 A CN 202211341237A CN 115386251 A CN115386251 A CN 115386251A
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parts
mass
agent
fly ash
inorganic ceramic
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CN115386251B (en
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李维鹏
徐东芳
安良田
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Hebei Sheng Huoxin Mstar Technology Ltd
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Hebei Sheng Huoxin Mstar Technology Ltd
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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
    • C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/18—Fireproof paints including high temperature resistant paints
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/61—Additives non-macromolecular inorganic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/65—Additives macromolecular
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Paints Or Removers (AREA)

Abstract

The invention relates to a preparation method of inorganic ceramic waterproof paint, which comprises 30-40 parts of waste fly ash, 10-20 parts of aluminum tailing waste, 25-35 parts of bauxite, 0.5-1.5 parts of CMC, 0.5-1 part of flatting agent, 0.5-2 parts of hollow glass bead, 6-12 parts of nano ceramic particles, 1-2 parts of silane coupling agent, 0.5-1.5 parts of pH regulator, 0.5-2 parts of auxiliary agent, 8-16 parts of water-based epoxy resin, 10-15 parts of inorganic pigment and 45-70 parts of solvent by weight; the proportion of particles with the particle size of 1-20 mu m in the fly ash is more than 80 wt%; mixing the raw materials, filtering by adopting a 20-35 micron filter hole, adding a pH regulator to adjust the pH to 10-14, and adding hollow glass beads to obtain the inorganic ceramic waterproof coating. The paint is prepared from cheap wastes such as waste fly ash, aluminum tailing waste, bauxite and the like, and has the advantages of high temperature resistance, acid and alkali resistance, flat paint film appearance, excellent waterproof performance, easiness in painting and the like.

Description

Preparation method of inorganic ceramic waterproof paint
Technical Field
The invention relates to the technical field of coatings, in particular to a preparation method of an inorganic ceramic waterproof coating.
Background
The continuous film is coated on the surface of the protected or decorated object and can form firm adhesion with the coated object, and is usually a viscous liquid prepared by taking resin, oil or emulsion as a main material, adding or not adding pigments and fillers, adding corresponding auxiliary agents and using organic solvents or water. The coating generally comprises an organic coating and an inorganic coating, wherein the organic coating is a coating formed by taking a high molecular compound as a main film forming substance. However, organic coatings are easy to fade, have poor high temperature resistance and poor corrosion resistance, can release harmful VOCs during combustion, and are generally used for indoor furniture decoration. The base material of the inorganic coating is usually directly obtained from the nature, so the source is very rich. For example, silica sol, silicate solutions, and the like. The inorganic paint has the characteristics of long service life, difficult fading, no combustion and the like. Most of the inorganic coatings are alkaline, are more suitable for being applied to basic layers of cement, lime sand and the like with the same alkalinity, can generate chemical reaction with lime in the base materials to generate calcium silicate crystals, and can be integrated with the basic layers, so the adhesive force of the inorganic coatings is particularly good. The inorganic coating is mostly used outdoors and used for isolating water vapor, thereby avoiding the corrosion of a steel structure and the acidification in a concrete building caused by the water vapor from influencing the service life of the concrete building. The traditional coating is greatly restricted by the environmental temperature, and has higher requirements on the transportation, storage, stacking and construction operation environments; the temperature is too high in summer, the surface of the film layer which is just coated is dehydrated too fast, and the wrinkling phenomenon can be generated, so that the film forming quality is influenced; the coating has poor construction performance and uneven thickness of a film layer under the influence of the flatness of a base surface.
Meanwhile, the main component of the waste fly ash is SiO 2 、Al 2 O 3 C, etc.; the main component of the aluminum-containing tailing fertilizer is that the main component of the fertilizer mainly contains Al 2 O 3 、TiO 2 And also contains Fe 2 O 3 Etc.; the main component of bauxite is Al 2 O 3 . These all belong to inorganic ceramic materials, and if the materials can be utilized, the resource utilization rate is improved, and the pollution to the environment caused by the accumulation of waste materials can be reduced.
Disclosure of Invention
Technical problem to be solved
In view of the above disadvantages and shortcomings of the prior art, the invention provides a preparation method of an inorganic ceramic waterproof coating, which is mainly prepared from cheap wastes such as waste fly ash, alumina-containing industrial waste, bauxite and the like, and not only reduces the coating cost, but also has the technical effects of high temperature resistance of 400 ℃, strong acid resistance, strong alkali resistance, environmental protection, no toxicity, simple coating construction and the like, and solves the technical problem that the existing coating wrinkles due to too fast surface water loss in the construction at high temperature in summer.
(II) technical scheme
In order to achieve the purpose, the invention adopts the main technical scheme that:
in a first aspect, the present invention provides a method for preparing an inorganic ceramic waterproof coating, comprising the following steps:
s1, preparing 30-40 parts by mass of waste fly ash, 10-20 parts by mass of aluminum tailing waste, 25-35 parts by mass of bauxite, 0.5-1.5 parts by mass of CMC, 0.5-1 part by mass of a leveling agent, 0.5-2 parts by mass of hollow glass beads, 6-12 parts by mass of nano ceramic particles, 1-2 parts by mass of a silane coupling agent, 0.5-1.5 parts by mass of a pH regulator, 0.5-2 parts by mass of an auxiliary agent, 8-16 parts by mass of water-based epoxy resin, 10-15 parts by mass of an inorganic pigment and 45-70 parts by mass of a solvent;
the fly ash is II-grade fly ash, wherein particles with the particle size of 1-20 mu m account for more than 80 wt%;
s2, performing ball milling on the waste fly ash, the aluminum tailing waste, bauxite, CMC, nano ceramic particles, a silane coupling agent, an auxiliary agent, an inorganic pigment and a solvent to obtain slurry;
and S3, stirring and mixing the slurry, the water-based epoxy resin and the flatting agent, continuously grinding for more than 20min, filtering by adopting a 20-35 micron filter hole, adding 0.5-5 parts of water for dilution according to the viscosity, adding a pH regulator for regulating to pH10-14, adding the hollow glass beads, and fully stirring to obtain the inorganic ceramic waterproof coating.
According to a preferred embodiment of the present invention, in S1, the nano ceramic particles are ceramic particles with a particle size of 5-50nm, and the ceramic particles are one or a combination of several of nano silica, nano alumina, nano titanium oxide, and nano iron oxide.
According to the preferred embodiment of the invention, in S1, the aluminum tailing waste and the bauxite are powder with the mesh number of 800-1000 meshes obtained by air separation of an ultrafine air separator.
According to a preferred embodiment of the present invention, in S1, the leveling agent is one or two of methyl silicone oil and hydroxyl silicone oil.
According to a preferred embodiment of the present invention, in S1, the pH adjusting agent is sodium hydroxide or potassium hydroxide.
According to a preferred embodiment of the present invention, in S1, the auxiliary agent is one or a combination of several of a penetrant, a polycarboxylic acid water reducing agent, a metal ion complexing agent, a dispersant, and a preservative.
The penetrating agent in the auxiliary agent is triethanolamine or fatty alcohol-polyoxyethylene ether; the dispersant is BYK 180, BYK190 or BYK2010. The preservative is a special preservative for paint, is a commercially available product and is used for preventing the corrosivity of acid radical ions such as chloride ions. The metal ion complexing agent is EDTA and the like, and is used for promoting the formation of a net structure taking metal as a core and improving the rigidity and strength of the coating.
According to the preferred embodiment of the present invention, in S1, the hollow glass microspheres have a particle size ranging from 5 to 30 μm. The hollow glass beads have the characteristics of light weight, low heat conduction, sound insulation, heat insulation, high dispersion, improvement on the coating workability and the film smoothness and the like, and also have the advantages of good electrical insulation property, good thermal stability and the like.
Hollow glass beads are different from fly ash beads (sinking beads). The hollow glass bead is a hollow micro spherical vitreous material containing gas, is a hollow particle with unique and stable performance, and has the advantages of light weight, large volume, low heat conductivity coefficient, good dispersibility, good fluidity and good stability. In addition, the composite material also has excellent performances of insulation, self lubrication, sound and heat insulation, no water absorption, corrosion resistance, radiation protection, harmlessness and the like.
According to a preferred embodiment of the invention, in S1, the solvent is a mixture of deionized water and alcohol, the alcohol is anhydrous ethylene glycol or propylene glycol, and the alcohol and the deionized water are mixed according to a mass ratio of 1-5; the inorganic pigment is titanium dioxide, manganese iron black, iron oxide red, carbon black, zinc white, chrome yellow, iron blue, cadmium red, cadmium yellow, lithopone or iron oxide yellow and the like. Compared with pure water, the mixture of deionized water and alcohol can play a role in gradual drying and curing, and the smoothness of the surface of the film layer is improved.
In a second aspect, the present invention also provides an inorganic ceramic waterproof coating prepared by the above method.
(III) advantageous effects
The inorganic ceramic waterproof paint prepared by the invention is mainly prepared from cheap waste fly ash, aluminum-containing industrial waste, bauxite and the like, and a small amount of other materials (carboxymethyl cellulose CMC, a leveling agent, hollow glass microspheres, nano ceramic particles, a pH regulator, an auxiliary agent, water-based epoxy resin and an inorganic pigment) are added to prepare the paint which has firm adhesion (can be firmly adhered to a metal surface or a building wall surface), low overall cost, high temperature resistance, wear resistance, acid and alkali resistance, environmental protection, no toxicity and excellent coating construction performance, is suitable for being coated in a high-temperature environment, can solve the technical problem of wrinkling caused by too fast surface water loss in high-temperature construction, and has smooth and flat paint film appearance, good covering power and waterproof performance, easy coating and uniform film after the paint is formed.
Tests prove that the coating of the invention has stable performance, and particularly when the coating is used for the surface of a concrete building, the coating has good waterproof performance, can resist acid and alkali corrosion and prolong the service life of the concrete building. The one-time protection effect of brushing can reach 10-15 years. The application fields include: the building outer wall, the aluminum alloy curtain wall, the steel construction, highway guardrail, municipal pipe network pipeline, cast tube, fan blade etc. field. The novel inorganic ceramic waterproof coating is wear-resistant, high-temperature resistant, acid-base resistant, environment-friendly and has good decoration and protection effects.
The invention also can perform resource utilization on the waste fly ash, the aluminum-containing industrial waste, the bauxite and the like, and can reduce environmental pollution. The waste aluminum-containing tailings are subjected to reduction and harmless treatment, so that land occupation and environmental pollution caused by accumulation are avoided.
Detailed Description
For the purpose of better explaining the present invention and to facilitate understanding, the present invention will be described in detail below with reference to specific embodiments.
Example 1
The embodiment is a preparation method of an inorganic ceramic waterproof coating, which comprises the following steps:
(1) 30g of waste fly ash, 10g of aluminum tailing waste, 25 g of bauxite, 0.5g of CMC, 0.5g of methyl silicone oil leveling agent, 0.6g of hollow glass microsphere, 5g of nano ceramic particles, 1g of silane coupling agent (KH 560), 0.5g of sodium hydroxide, 0.8g of triethanolamine, 0.6g of preservative, 15g of aqueous epoxy resin (commercially available product EP 51), 10g of iron oxide red and 45g of solvent are prepared.
Wherein the fly ash is II-grade fly ash, and the proportion of particles with the particle diameter of 1-20 mu m is more than 80 wt%. The solvent was 40g of deionized water and 5g of ethylene glycol. The nano ceramic particles are nano silicon dioxide with the particle size of 5-50 nm. The granularity of the aluminum tailing waste and the bauxite is 800-1000 meshes. The hollow glass micro-bead has a particle size range of 5-30 μm.
(2) Ball milling waste fly ash, aluminum tailing waste, bauxite, CMC, nano ceramic particles, KH560, triethanolamine, a preservative, iron oxide red and a solvent to obtain slurry.
(3) Stirring and mixing the slurry, the water-based epoxy resin and the flatting agent, continuously grinding for more than 20min, filtering by adopting a 30-micron filter hole, adding 3g of water for dilution according to the viscosity, adding a pH regulator for regulating to 10.5, adding the hollow glass beads, and fully stirring to obtain the inorganic ceramic waterproof coating.
The coating of the invention needs to pack the solid material and the solvent respectively before use, and ball milling and mixing are carried out temporarily before the coating needs to be used, and the coating is used in time.
The proportion of particles with the grain diameter of 1-20 mu m of the fly ash in the coating formula is limited to more than 80wt%, so that the coating has better water retention property, and uneven surface caused by uneven film thickness due to rapid evaporation and water loss at high temperature is prevented. CMC has thickening and water-retaining operation, uses CMC and epoxy resin mixture, can obtain the better coating of bonding fastness, also can prevent the uneven surface problem of coating thickness that leads to because of the coating dries too fast under the high temperature toasts simultaneously. The hollow glass beads have excellent performances of insulation, self lubrication, sound and heat insulation, no water absorption, corrosion resistance, radiation protection, harmlessness and the like, can improve the heat insulation performance of the coating, and simultaneously increases the coating application property of the coating. The nano ceramic particles mainly play a role in quickly plugging fine pores (smaller than 0.2 mm) of a concrete building wall (cement brick) and can play a more effective water seepage prevention effect. The silane coupling agent is used for improving the bonding firmness of the coating, particularly, the smooth surface of a metal material (such as a metal guardrail) is difficult to bond firmly, a small amount of the coupling agent needs to be added to improve the bonding firmness, and the silane coupling agent can be omitted for the surface of a concrete building. The pH regulator is used for activating the activity of the fly ash and improving the bonding firmness of the fly ash and a coated base surface.
Example 2
The embodiment is a preparation method of an inorganic ceramic waterproof coating, which comprises the following steps:
(1) The preparation method comprises the following steps of preparing 40g of waste fly ash, 20g of aluminum tailing waste, 35g of bauxite, 1.5g of CMC, 1g of methyl silicone oil leveling agent, 2g of hollow glass microsphere, 12g of nano ceramic particle, 1.5g of silane coupling agent (KH 560), 0.8g of sodium hydroxide, 0.5g of EDTA, 1g of BYK 180 dispersing agent, 16g of waterborne epoxy resin (a commercially available product HyPer WE 1051), 10g of titanium dioxide and 55g of solvent.
Wherein the fly ash is II-grade fly ash, and the proportion of particles with the particle diameter of 1-20 mu m is more than 80 wt%. The solvent was 50g of deionized water and 5g of ethylene glycol. The nano ceramic particles are nano iron oxide with the particle size of 5-50 nm. The granularity of the aluminum tailing waste and the bauxite is 800-1000 meshes. The hollow glass micro-bead has a particle size range of 5-30 μm.
(2) And performing ball milling on the waste fly ash, the aluminum tailing waste, bauxite, CMC, nano ceramic particles, KH560, EDTA, BYK 180 dispersant, titanium dioxide and a solvent to obtain slurry.
(3) Stirring and mixing the slurry, the water-based epoxy resin and the flatting agent, continuously grinding for more than 20min, filtering by adopting a 30-micron filter hole, adding 3g of water according to the viscosity, diluting, adding a pH regulator to adjust the pH value to 11, adding the hollow glass beads, and fully stirring to obtain the inorganic ceramic waterproof coating.
Example 3
In this example, on the basis of example 1, 35g of waste fly ash, 15g for aluminum tailing waste, 30g of bauxite, 44g of deionized water and 6g of ethylene glycol were adjusted for solvent. See example 1 for other ingredient specifications and methods of preparation.
Example 4
In this example, CMC was adjusted to 1g in addition to example 1. See example 1 for other ingredient specifications and methods of preparation.
Example 5
In this example, the amount of hollow glass beads was adjusted to 2g based on example 1. See example 1 for other ingredient specifications and methods of preparation.
Example 6
In this example, on the basis of example 1, 10g of the nano-ceramic particles, 45g of the solvent and 5g of propylene glycol were adjusted. See example 1 for other ingredient specifications and methods of preparation.
Example 7
In this example, the adjuvant was adjusted to 0.8g of polycarboxylic acid water reducing agent and 0.8g of triethanolamine as a penetrating agent based on example 1. See example 1 for other ingredient specifications and methods of preparation.
Comparative examples 1 to 5
Comparative example 1 on the basis of example 1, fly ash was replaced with an equal amount of class I fly ash, wherein particles having a particle size of 1-20 μm accounted for no more than 20wt%. Comparative example 2 lacks CMC. Comparative example 3 lacks hollow glass microspheres. Comparative example 4 lacks the nano-ceramic particles. Comparative example 5 no penetrant and preservative were added.
In order to verify the objective effects of the present invention, the inventors examined the product performance of the above examples and comparative examples, and the main effects are the appearance of the paint film, acid and alkali resistance, water resistance, fire resistance and coating hardness of the inorganic ceramic waterproof coating cured after being painted at high temperature.
The detection method comprises the steps of uniformly stirring the coating, brushing the coating on the surface of a cement brick of 5cm, brushing the coating back and forth for 2 times, baking the cement brick in a baking oven at 60 ℃ for 2 hours, and observing the appearance of a paint film (including the uniformity of the paint film). And then, adhering a circle of acrylic plates to the periphery of the surface of the experimental brick by using waterproof glue to manufacture a 5cm enclosure, and sealing the outer side of the bottom by using a waterproof glue gun. Then 10wt% dilute hydrochloric acid aqueous solution is filled in, the upper part of the enclosure is sealed by a preservative film, and the enclosure is placed at room temperature for 72 hours to observe the water permeability and the film damage degree below the brick. And then, washing the brick with clear water, drying the brick, then filling the brick with 1.0mol/L sodium hydroxide solution, and standing the brick at room temperature for 72 hours to observe the water permeability and the damage degree of a film layer below the brick. The fire resistance and the coating hardness are tested by methods customary to those skilled in the art. The results of the performance tests are given in the following table:
Figure DEST_PATH_IMAGE001
from the above results, it can be seen that, in the coating used in a high temperature environment, since the environmental temperature is high, the solvent is easy to volatilize quickly, and if the proportion of the particles with the particle size of 1-20 μm in the fly ash is more than 80wt%, the solvent evaporation speed of the coating can be delayed, so as to obtain a film layer with a smooth surface and a uniform thickness. On the contrary, if the particle size of the fly ash is large, the water retention is not favorable, and the flatness of the film layer is not favorable. In example 2, the hardness of the paint film is improved after the metal ion complexing agent is added. The metal ion complexing agent can promote the formation of a metal-cored reticular structure and improve the rigidity and the strength of the coating.
In addition, the addition of a small amount of CMC in the coating is also beneficial to delaying the evaporation speed of the solvent of the coating at high temperature, improving the coating performance of the coating and improving the appearance of a paint film. In addition, the addition of the hollow glass beads is beneficial to improving the workability of a paint film, so that when the base surface flatness is poor, the flatness of the paint film and the uniformity of the film thickness are improved by virtue of the self-lubricating property of the hollow glass beads. The nano ceramic particles have the function of plugging capillary pores under the alkaline condition due to small particle size and high activity, thereby playing the role of water seepage prevention. The preservative helps to improve the acid resistance of the paint film.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (9)

1. The preparation method of the inorganic ceramic waterproof coating is characterized by comprising the following steps:
s1, preparing 30-40 parts by mass of waste fly ash, 10-20 parts by mass of aluminum tailing waste, 25-35 parts by mass of bauxite, 0.5-1.5 parts by mass of CMC, 0.5-1 part by mass of a leveling agent, 0.5-2 parts by mass of hollow glass beads, 6-12 parts by mass of nano ceramic particles, 1-2 parts by mass of a silane coupling agent, 0.5-1.5 parts by mass of a pH regulator, 0.5-2 parts by mass of an auxiliary agent, 8-16 parts by mass of water-based epoxy resin, 10-15 parts by mass of an inorganic pigment and 45-70 parts by mass of a solvent;
the fly ash is II-grade fly ash, and the proportion of particles with the particle size of 1-20 mu m is more than 80 wt%;
s2, performing ball milling on the waste fly ash, the aluminum tailing waste, bauxite, CMC, nano ceramic particles, a silane coupling agent, an auxiliary agent, an inorganic pigment and a solvent to obtain slurry;
and S3, stirring and mixing the slurry, the water-based epoxy resin and the flatting agent, continuously grinding for more than 20min, filtering by adopting a 20-35 micron filter hole, adding 0.5-5 parts of water for dilution according to the viscosity, adding a pH regulator for regulating to pH10-14, adding the hollow glass beads, and fully stirring to obtain the inorganic ceramic waterproof coating.
2. The preparation method of the inorganic ceramic waterproof coating material according to claim 1, wherein the nano ceramic particles are ceramic particles with a particle size of 5-50nm, and the ceramic particles are one or a combination of several of nano silica, nano alumina, nano titanium oxide and nano iron oxide.
3. The method for preparing the inorganic ceramic waterproof coating according to claim 1, wherein in S1, the aluminum tailing waste and the bauxite are powder with the mesh number of 800-1000 meshes obtained by air separation of an ultrafine air separator.
4. The method for preparing the inorganic ceramic waterproof coating according to claim 1, wherein in S1, the leveling agent is one or two of methyl silicone oil and hydroxyl silicone oil.
5. The method for preparing an inorganic ceramic waterproof coating material according to claim 1, wherein the pH adjusting agent in S1 is sodium hydroxide or potassium hydroxide.
6. The preparation method of the inorganic ceramic waterproof coating material according to claim 1, wherein in S1, the auxiliary agent is one or a combination of a plurality of penetrants, polycarboxylic acid water reducing agents, metal ion complexing agents, dispersing agents and preservatives.
7. The preparation method of the inorganic ceramic waterproof paint as claimed in claim 6, wherein the penetrating agent in the auxiliary agent is triethanolamine or fatty alcohol-polyoxyethylene ether; the dispersant is BYK 180, BYK190 or BYK2010; the preservative is a special preservative for the paint; the metal ion complexing agent is EDTA.
8. The method for preparing inorganic ceramic waterproof paint according to claim 1, wherein the hollow glass beads are ultrafine hollow glass beads having a particle size ranging from 5 to 30 μm.
9. The preparation method of the inorganic ceramic waterproof coating material according to claim 1, wherein in S1, the solvent is a mixture of deionized water and alcohol, the alcohol is ethylene glycol or propylene glycol, and the alcohol and the deionized water are mixed according to a mass ratio of 1-5; the inorganic pigment is titanium dioxide, manganese iron black, iron oxide red, carbon black, zinc white, chrome yellow, iron blue, cadmium red, cadmium yellow, lithopone or iron oxide yellow.
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CN108977081A (en) * 2018-06-13 2018-12-11 合肥天沃能源科技有限公司 A kind of efficient energy-saving coating for building and preparation method thereof
CN111826073A (en) * 2020-08-20 2020-10-27 河南朗迪新材料科技有限公司 Preparation method of waterproof coating

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