CN110885615A - Water-based epoxy floor coating and preparation method and construction method thereof - Google Patents
Water-based epoxy floor coating and preparation method and construction method thereof Download PDFInfo
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- CN110885615A CN110885615A CN201911279920.0A CN201911279920A CN110885615A CN 110885615 A CN110885615 A CN 110885615A CN 201911279920 A CN201911279920 A CN 201911279920A CN 110885615 A CN110885615 A CN 110885615A
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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
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/40—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the curing agents used
- C08G59/62—Alcohols or phenols
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
- C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/12—Flooring or floor layers made of masses in situ, e.g. seamless magnesite floors, terrazzo gypsum floors
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/18—Separately-laid insulating layers; Other additional insulating measures; Floating floors
- E04F15/181—Insulating layers integrally formed with the flooring or the flooring elements
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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Abstract
The invention provides a water-based epoxy floor coating and a preparation method and a construction method thereof, relating to the technical field of coatings, wherein the coating comprises the following raw materials in parts by weight: 50-70 parts of bisphenol A type epoxy resin and 4-10 parts of reactive diluent; b, component B: 100-120 parts of cardanol modified polyamide curing agent, 110-130 parts of deionized water, 8-13 parts of auxiliary agent, 80-100 parts of inorganic filler and 70-90 parts of silane coupling agent modified nano aluminum oxide. According to the invention, by selecting appropriate raw materials and raw material proportion and assisting with a targeted preparation method and construction method, the finally cured coating has excellent comprehensive properties such as wear resistance and water resistance, and the service life of the coating is greatly prolonged.
Description
Technical Field
The invention relates to the technical field of coatings, in particular to a water-based epoxy floor coating and a preparation method and a construction method thereof.
Background
The epoxy resin is a high molecular oligomer which contains two or more epoxy groups, contains an aliphatic chain segment, an alicyclic chain segment or an aromatic chain segment in the main chain, and can generate a thermosetting product through the reaction of the epoxy groups. The epoxy resin contains various high-activity reactive groups, including epoxy groups, hydroxyl groups, ether bonds, esters, benzene rings and other acute groups, and can react with various different curing agents to form different curing systems. The aqueous epoxy resin is a stable dispersion system prepared by dispersing the epoxy resin in the form of fine particles, droplets or colloids in a dispersion medium having water as a continuity.
The preparation of the water-based epoxy floor coating mainly adopts an emulsification method, and the epoxy resin is prepared into epoxy emulsion by a method of adding an emulsifier or chemically modifying and coated on the surface of a substrate to form a continuous film. At present, the waterborne epoxy floor coating mainly has two types: the coating is a system prepared by matching low-molecular liquid epoxy resin and a water-based amine curing agent, has low comprehensive use cost, is a mainstream product of the existing water-based epoxy floor coating, can be used for preparing thick-coating finish paint due to relatively high construction solid phase, but has the defects of poor construction property, short working life, poor comprehensive performance of a coating film and the like due to poor intermiscibility of two components of the coating; and secondly, a system of compatibility of the water-based epoxy resin emulsion and the water-based amine curing agent is adopted, the two components of the coating are easy to mix, but the construction solid phase is relatively low, the coating can only be used for preparing thin finish paint, the coating efficiency is low, and the water-based epoxy resin emulsion contains more hydrophilic chain segments, so that the chemical medium resistance of a coating film is reduced. Therefore, the existing two types of waterborne epoxy floor coatings have defects.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides the water-based epoxy floor coating and the preparation method and the construction method thereof, and the finally cured coating has excellent comprehensive performances such as wear resistance, water resistance and the like by selecting proper raw materials and raw material proportion and assisting with a targeted preparation method and construction method, so that the service life of the coating is greatly prolonged.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme:
the water-based epoxy floor coating comprises the following raw materials in parts by weight:
the component A comprises:
50-70 parts of bisphenol A type epoxy resin;
4-10 parts of a reactive diluent;
b, component B:
further, the auxiliary agent is prepared from a wetting agent, a dispersing agent, a defoaming agent and a thickening and leveling agent according to a mass ratio of 3: 1: 2: 1, and the specific types of the auxiliary agents are selected as conventional choices.
Further, the silane coupling agent is glycidyl ether oxygen propyl trimethoxy silane coupling agent or gamma-methyl propylene oxygen propyl trimethoxy silane coupling agent.
Further, the preparation method of the silane coupling agent modified nano-alumina comprises the following steps: adding a silane coupling agent into an ethanol solvent, dropwise adding an acid water solution into the ethanol solvent to adjust the pH value to 4-5, degrading for 1h at room temperature, then adding nano-alumina into a water coupling agent solution, heating in a water bath to 60-80 ℃, reacting for 2-3h, filtering, washing with toluene, and vacuum-drying the obtained solid at 60 ℃ for 24h to obtain the silane coupling agent modified nano-alumina.
Furthermore, the mass/volume ratio of the silane coupling agent to the ethanol solvent to the nano-alumina is 1mL:20mL:1 g.
Further, the preparation method of the cardanol modified polyamide curing agent comprises the following steps: adding cardanol into a three-neck flask, adding polyamide into the three-neck flask while stirring, adding a formaldehyde solution after uniformly stirring, heating to 75-85 ℃, carrying out heat preservation reaction for 40-60min, then dropwise adding a triethylene tetramine solution, heating to 98 ℃, carrying out constant temperature reaction for 50-60min, carrying out reduced pressure distillation to separate out water, and cooling to room temperature to obtain the cardanol modified polyamide curing agent, wherein the mass ratio of cardanol to polyamide, the formaldehyde solution and the triethylene tetramine solution is 1: 1.4-1.6: 0.4-0.6: 0.6-0.9.
Further, the reactive diluent is butyl glycidyl ether or allyl glycidyl ether.
Furthermore, the inorganic filler is a mixture of titanium dioxide, talcum powder, quartz powder and heavy calcium in any proportion.
The preparation method of the water-based epoxy floor coating comprises the following steps:
1) adding bisphenol A epoxy resin and an active diluent into a reaction kettle, heating to 40-60 ℃ under the condition of stirring, stirring at constant temperature for 60min, cooling to room temperature, and filtering with a silk screen to obtain a component A;
2) adding the cardanol modified polyamide curing agent and deionized water into a container, stirring uniformly, adding the inorganic filler and the silane coupling agent modified nano-alumina into the container while stirring, dispersing to the fineness of less than 25 micrometers by using a dispersion machine, adding the auxiliary agent into the container while stirring after dispersion is finished, stirring uniformly, and filtering by using a silk screen to obtain the component B.
The construction method of the water-based epoxy floor coating comprises the following steps:
1) the substrate to be coated is inspected and treated for its performance, the surface treatment being specifically operative to: using sand blasting or an electric grinder to remove surface protrusions, loosening particles, damaging capillary pores and increasing attachment area;
2) when in construction, the environmental temperature is 0-30 ℃, the low-viscosity solvent-free epoxy seal primer is roller-coated, and the concrete is fully wetted, so that the primer permeates into the inner layer of the concrete;
3) fully mixing the component A and the component B, stirring uniformly, coating a flat compact layer with a certain thickness by using a trowel, scraping and batching soil twice after the coating is cured, and polishing and flattening;
4) and (3) smearing finish paint on the cured surface of the coating by troweling, brushing, rolling or spraying to enable the coating to be self-leveling, and standing for 48 hours after construction is finished.
(III) advantageous effects
The invention provides a water-based epoxy floor coating, a preparation method and a construction method thereof, and the water-based epoxy floor coating has the following beneficial effects:
1. according to the invention, cardanol modified polyamide curing agent and bisphenol A epoxy resin are subjected to cross-linking reaction, and the cardanol modified polyamide curing agent is cured at normal temperature to form a film. Compared with the conventional polyamide curing agent, the cardanol modified polyamide curing agent has excellent low-temperature curing performance, good flexibility and yellowing resistance, so that the floor coating can be used at the temperature of more than 0 ℃, is dried quickly, and solves the problem that the conventional floor coating cannot be constructed in winter.
2. According to the invention, the silane coupling agent modified nano-alumina is used as the coating filler, a large amount of silanol is contained in the hydrolyzed solution of the silane coupling agent, a large amount of hydroxyl exists on the surface of the alumina, the hydroxyl and the silanol can be bonded by silicon-oxygen bonds, so that the bonding force between the silane coupling agent and the alumina is strong, and active groups with reaction capacity on the molecular chain of the silane coupling agent can perform a crosslinking reaction with an epoxy resin matrix, so that the bonding force between the alumina and the epoxy resin is enhanced, and the wear resistance of the coating is improved.
3. According to the invention, by selecting appropriate raw materials and raw material proportion and assisting with a targeted preparation method and construction method, the finally cured coating has excellent comprehensive properties such as wear resistance and water resistance, and the service life of the coating is greatly prolonged.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
the water-based epoxy floor coating comprises the following raw materials in parts by weight:
the component A comprises:
60 parts of bisphenol A epoxy resin;
7 parts of a reactive diluent;
b, component B:
wherein the auxiliary agent comprises a wetting agent, a dispersing agent, a defoaming agent and a thickening and leveling agent in a mass ratio of 3: 1: 2: 1, selecting the specific types of the auxiliary agents as conventional selection; the silane coupling agent is glycidyl ether oxypropyl trimethoxy silane coupling agent; the reactive diluent is butyl glycidyl ether; the inorganic filler is a mixture of titanium dioxide, talcum powder, quartz powder and heavy calcium in any proportion.
The preparation method of the silane coupling agent modified nano-alumina comprises the following steps: adding a silane coupling agent into an ethanol solvent, dropwise adding an acid water solution into the ethanol solvent to adjust the pH value to 4-5, degrading for 1h at room temperature, then adding nano-alumina into a water coupling agent solution, heating in a water bath to 80 ℃, reacting for 3h, filtering, washing with toluene, and drying the obtained solid in vacuum at 60 ℃ for 24h to obtain the silane coupling agent modified nano-alumina. Wherein the mass/volume ratio of the silane coupling agent to the ethanol solvent to the nano-alumina is 1mL to 20mL to 1 g.
The preparation method of the cardanol modified polyamide curing agent comprises the following steps: adding cardanol into a three-neck flask, adding polyamide into the three-neck flask while stirring, adding a formaldehyde solution after uniformly stirring, heating to 80 ℃, carrying out heat preservation reaction for 50min, then dropwise adding a triethylene tetramine solution, heating to 98 ℃, carrying out constant temperature reaction for 60min, carrying out reduced pressure distillation to separate out water, and cooling to room temperature to obtain the cardanol modified polyamide curing agent, wherein the mass ratio of cardanol to polyamide, the formaldehyde solution and the triethylene tetramine solution is 1: 1.5: 0.6: 0.8.
the preparation method of the water-based epoxy floor coating comprises the following steps:
1) adding bisphenol A epoxy resin and an active diluent into a reaction kettle, heating to 40 ℃ under the condition of stirring, stirring at constant temperature for 60min, cooling to room temperature, and filtering with a silk screen to obtain a component A;
2) adding the cardanol modified polyamide curing agent and deionized water into a container, stirring uniformly, adding the inorganic filler and the silane coupling agent modified nano-alumina into the container while stirring, dispersing to the fineness of less than 25 micrometers by using a dispersion machine, adding the auxiliary agent into the container while stirring after dispersion is finished, stirring uniformly, and filtering by using a silk screen to obtain the component B.
The construction method of the water-based epoxy floor coating comprises the following steps:
1) the substrate to be coated is inspected and treated for its performance, the surface treatment being specifically operative to: using sand blasting or an electric grinder to remove surface protrusions, loosening particles, damaging capillary pores and increasing attachment area;
2) when in construction, the environmental temperature is 0-30 ℃, the low-viscosity solvent-free epoxy seal primer is roller-coated, and the concrete is fully wetted, so that the primer permeates into the inner layer of the concrete;
3) fully mixing the component A and the component B, stirring uniformly, coating a flat compact layer with a certain thickness by using a trowel, scraping and batching soil twice after the coating is cured, and polishing and flattening;
4) and (3) smearing finish paint on the cured surface of the coating by troweling, brushing, rolling or spraying to enable the coating to be self-leveling, and standing for 48 hours after construction is finished.
Example 2:
the water-based epoxy floor coating comprises the following raw materials in parts by weight:
the component A comprises:
50 parts of bisphenol A type epoxy resin;
8 parts of a reactive diluent;
b, component B:
wherein the auxiliary agent comprises a wetting agent, a dispersing agent, a defoaming agent and a thickening and leveling agent in a mass ratio of 3: 1: 2: 1, selecting the specific types of the auxiliary agents as conventional selection; the silane coupling agent is gamma-methacryloxypropyl trimethoxy silane coupling agent; the active diluent is allyl glycidyl ether; the inorganic filler is a mixture of titanium dioxide, talcum powder, quartz powder and heavy calcium in any proportion.
The preparation method of the silane coupling agent modified nano-alumina comprises the following steps: adding a silane coupling agent into an ethanol solvent, dropwise adding an acid water solution into the ethanol solvent to adjust the pH value to 4-5, degrading for 1h at room temperature, then adding nano-alumina into a water coupling agent solution, heating in a water bath to 680 ℃, reacting for 2h, filtering, washing with toluene, and drying the obtained solid in vacuum at 60 ℃ for 24h to obtain the silane coupling agent modified nano-alumina. Wherein the mass/volume ratio of the silane coupling agent to the ethanol solvent to the nano-alumina is 1mL to 20mL to 1 g.
The preparation method of the cardanol modified polyamide curing agent comprises the following steps: adding cardanol into a three-neck flask, adding polyamide into the three-neck flask while stirring, adding a formaldehyde solution after uniformly stirring, heating to 75 ℃, keeping the temperature for reaction for 40min, then dropwise adding a triethylene tetramine solution, heating to 98 ℃, reacting at a constant temperature for 50min, then performing reduced pressure distillation to separate water, and cooling to room temperature to obtain the cardanol modified polyamide curing agent, wherein the mass ratio of cardanol to polyamide, the formaldehyde solution and the triethylene tetramine solution is 1: 1.4: 0.4: 0.6.
the preparation method of the water-based epoxy floor coating comprises the following steps:
1) adding bisphenol A epoxy resin and an active diluent into a reaction kettle, heating to 40-60 ℃ under the condition of stirring, stirring at constant temperature for 60min, cooling to room temperature, and filtering with a silk screen to obtain a component A;
2) adding the cardanol modified polyamide curing agent and deionized water into a container, stirring uniformly, adding the inorganic filler and the silane coupling agent modified nano-alumina into the container while stirring, dispersing to the fineness of less than 25 micrometers by using a dispersion machine, adding the auxiliary agent into the container while stirring after dispersion is finished, stirring uniformly, and filtering by using a silk screen to obtain the component B.
The construction method of the water-based epoxy floor coating comprises the following steps:
1) the substrate to be coated is inspected and treated for its performance, the surface treatment being specifically operative to: using sand blasting or an electric grinder to remove surface protrusions, loosening particles, damaging capillary pores and increasing attachment area;
2) when in construction, the environmental temperature is 0-30 ℃, the low-viscosity solvent-free epoxy seal primer is roller-coated, and the concrete is fully wetted, so that the primer permeates into the inner layer of the concrete;
3) fully mixing the component A and the component B, stirring uniformly, coating a flat compact layer with a certain thickness by using a trowel, scraping and batching soil twice after the coating is cured, and polishing and flattening;
4) and (3) smearing finish paint on the cured surface of the coating by troweling, brushing, rolling or spraying to enable the coating to be self-leveling, and standing for 48 hours after construction is finished.
Example 3:
the water-based epoxy floor coating comprises the following raw materials in parts by weight:
the component A comprises:
70 parts of bisphenol A type epoxy resin;
6 parts of a reactive diluent;
b, component B:
the selection and preparation of the specific raw materials in this example were the same as in example 1. The preparation method and the construction method of the coating are the same as those of the example 1.
Example 4:
the water-based epoxy floor coating comprises the following raw materials in parts by weight:
the component A comprises:
58 parts of bisphenol A epoxy resin;
10 parts of a reactive diluent;
b, component B:
the selection and preparation of the specific raw materials in this example were the same as in example 1. The preparation method and the construction method of the coating are the same as those of the example 1.
Example 5:
the water-based epoxy floor coating comprises the following raw materials in parts by weight:
the component A comprises:
66 parts of bisphenol A type epoxy resin;
4 parts of a reactive diluent;
b, component B:
the selection and preparation of the specific raw materials in this example were the same as in example 1. The preparation method and the construction method of the coating are the same as those of the example 1.
The coatings prepared in examples 1 to 5 were applied to aluminum panels to prepare coatings at-8 to-15 ℃ and the drying times of the coatings were measured according to GB/T1728-1989 "determination of drying times of paint films and putty films"; testing the adhesion force according to GB/T5210-1985 Faraday method for determining the adhesion force of the coating; testing the flexibility of the paint film according to GB/T1731-1993 paint film flexibility testing method; testing the water resistance according to GB/T1733-1993 'determination method for water resistance of paint film'; the salt fog resistance of the paint is tested according to GB/T1771-2007 determination of neutral salt fog resistance of the paint and the varnish. The results are shown in Table 1.
Table 1:
in summary, the embodiment of the invention has the following beneficial effects: the coatings prepared according to the embodiments 1-5 of the present invention have short drying time, good adhesion, flexibility and salt spray resistance.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. The water-based epoxy floor coating is characterized in that the raw materials of the coating comprise the following components in parts by weight:
the component A comprises:
50-70 parts of bisphenol A type epoxy resin;
4-10 parts of a reactive diluent;
b, component B:
2. the aqueous epoxy floor coating of claim 1, wherein the adjuvant is prepared from a wetting agent, a dispersing agent, a defoaming agent, and a thickening and leveling agent in a mass ratio of 3: 1: 2: 1.
3. The aqueous epoxy floor coating of claim 1, wherein the silane coupling agent is a glycidyl ether oxypropyl trimethoxysilane coupling agent or a gamma-methacryloxypropyl trimethoxysilane coupling agent.
4. The water-based epoxy floor coating of claim 3, wherein the silane coupling agent modified nano alumina is prepared by the following steps: adding a silane coupling agent into an ethanol solvent, dropwise adding an acid water solution into the ethanol solvent to adjust the pH value to 4-5, degrading for 1h at room temperature, then adding nano-alumina into a water coupling agent solution, heating in a water bath to 60-80 ℃, reacting for 2-3h, filtering, washing with toluene, and vacuum-drying the obtained solid at 60 ℃ for 24h to obtain the silane coupling agent modified nano-alumina.
5. The aqueous epoxy floor coating of claim 4, wherein the mass/volume ratio of the silane coupling agent to the ethanol solvent and the nano-alumina is 1mL:20mL:1 g.
6. The water-based epoxy floor coating of claim 1, wherein the preparation method of the cardanol modified polyamide curing agent comprises: adding cardanol into a three-neck flask, adding polyamide into the three-neck flask while stirring, adding a formaldehyde solution after uniformly stirring, heating to 75-85 ℃, carrying out heat preservation reaction for 40-60min, then dropwise adding a triethylene tetramine solution, heating to 98 ℃, carrying out constant temperature reaction for 50-60min, carrying out reduced pressure distillation to separate out water, and cooling to room temperature to obtain the cardanol modified polyamide curing agent, wherein the mass ratio of cardanol to polyamide, the formaldehyde solution and the triethylene tetramine solution is 1: 1.4-1.6: 0.4-0.6: 0.6-0.9.
7. The aqueous epoxy floor coating of claim 1, wherein the reactive diluent is butyl glycidyl ether or allyl glycidyl ether.
8. The water-based epoxy floor coating of claim 1, wherein the inorganic filler is a mixture of titanium dioxide, talcum powder, quartz powder and heavy calcium in any proportion.
9. The preparation method of the water-based epoxy floor coating of claim 1, characterized by comprising the following steps:
1) adding bisphenol A epoxy resin and an active diluent into a reaction kettle, heating to 40-60 ℃ under the condition of stirring, stirring at constant temperature for 60min, cooling to room temperature, and filtering with a silk screen to obtain a component A;
2) adding the cardanol modified polyamide curing agent and deionized water into a container, stirring uniformly, adding the inorganic filler and the silane coupling agent modified nano-alumina into the container while stirring, dispersing to the fineness of less than 25 micrometers by using a dispersion machine, adding the auxiliary agent into the container while stirring after dispersion is finished, stirring uniformly, and filtering by using a silk screen to obtain the component B.
10. The construction method of the water-based epoxy floor coating of claim 1, characterized by comprising the following steps:
1) the substrate to be coated is inspected and treated for its performance, the surface treatment being specifically operative to: using sand blasting or an electric grinder to remove surface protrusions, loosening particles, damaging capillary pores and increasing attachment area;
2) when in construction, the environmental temperature is 0-30 ℃, the low-viscosity solvent-free epoxy seal primer is roller-coated, and the concrete is fully wetted, so that the primer permeates into the inner layer of the concrete;
3) fully mixing the component A and the component B, stirring uniformly, coating a flat compact layer with a certain thickness by using a trowel, scraping and batching soil twice after the coating is cured, and polishing and flattening;
4) and (3) smearing finish paint on the cured surface of the coating by troweling, brushing, rolling or spraying to enable the coating to be self-leveling, and standing for 48 hours after construction is finished.
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| CN113174777A (en) * | 2021-03-31 | 2021-07-27 | 美盈森集团股份有限公司 | Bi-component coating type anti-slip coating and preparation method thereof |
| CN113755035A (en) * | 2021-09-28 | 2021-12-07 | 亚士创能科技(上海)股份有限公司 | Epoxy silane modified nano alumina and polymer cement-based waterproof coating |
| CN113956749A (en) * | 2021-11-10 | 2022-01-21 | 广州安诺特高分子材料科技有限公司 | Water-based epoxy floor paint capable of being quickly air-dried and preparation method thereof |
| WO2023077634A1 (en) * | 2021-11-08 | 2023-05-11 | 广州视源电子科技股份有限公司 | Micro-ceramic ink, and preparation and application thereof |
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