CN115504750A - Decorative plate with surface coating cured by ultraviolet light and preparation process thereof - Google Patents
Decorative plate with surface coating cured by ultraviolet light and preparation process thereof Download PDFInfo
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- CN115504750A CN115504750A CN202211196529.6A CN202211196529A CN115504750A CN 115504750 A CN115504750 A CN 115504750A CN 202211196529 A CN202211196529 A CN 202211196529A CN 115504750 A CN115504750 A CN 115504750A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/10—Lime cements or magnesium oxide cements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/52—Multiple coating or impregnating multiple coating or impregnating with the same composition or with compositions only differing in the concentration of the constituents, is classified as single coating or impregnation
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/60—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only artificial stone
- C04B41/61—Coating or impregnation
- C04B41/70—Coating or impregnation for obtaining at least two superposed coatings having different compositions
- C04B41/71—Coating or impregnation for obtaining at least two superposed coatings having different compositions at least one coating being an organic material
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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
- C09D167/00—Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
- C09D167/06—Unsaturated polyesters having carbon-to-carbon unsaturation
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
- C09D175/14—Polyurethanes having carbon-to-carbon unsaturated bonds
-
- 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
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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
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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- 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)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Ceramic Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Structural Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Laminated Bodies (AREA)
Abstract
The invention relates to the technical field of decorative plates, in particular to a decorative plate with a surface coating cured by ultraviolet light and a preparation process thereof. The decorative plate comprises a plate body and a decorative coating, wherein the plate body comprises the following raw materials: the coating comprises quicklime, river sand, fly ash, stone particles, gypsum powder and pigment, wherein the plate body is subjected to ultraviolet irradiation after being soaked in a soaking solution, so that the adhesion between the plate body and the coating is improved, and the film forming spreadability of the coating on the plate body is improved; the decorative coating is formed by coating a plate body with a finish paint and then performing ultraviolet curing; in the decorative plate with the ultraviolet curing surface coating and the preparation process thereof, the immersion liquid is firstly adopted to perform gold immersion treatment on the plate body, then the ultraviolet curing is performed, the adhesive force between the plate body and the decorative coating is improved, the mixing degree of the plate body and the decorative coating is enhanced, the added finish paint can further combine the decorative surface layer with the plate body better under the action of the immersion liquid, and the overall strength of the decorative plate is improved.
Description
Technical Field
The invention relates to the technical field of decorative plates, in particular to a decorative plate with a surface coating cured by ultraviolet light and a preparation process thereof.
Background
The decorative material is divided into two parts: one part is outdoor material and the other part is indoor material. The indoor material is subdivided into five types, namely stone, plate, sheet, section and wire. The decorative plate is a general name of all plates and mainly comprises the following components: laminated wood boards, plywood, decorative panels, density boards, laminated wood, shaving boards, fireproof boards, gypsum boards, PVC boards, aluminous gusset plates, aluminum plastic boards, three-dimensional boards and the like; in the prior art, the application technologies represented by a paper-faced gypsum board, a high-strength crystal gypsum board, a mineral wool board, a pre-poured glass fiber reinforced gypsum composite (GRG) and a cement-based decorative board such as a glass fiber reinforced cement composite (GRC) and an inorganic mineral-based low-temperature Ceramic Board (CBC) in the gypsum-based decorative board and the like are applied, and the product is formed by pouring or pressing or extruding or spraying an inorganic cementing material at normal temperature.
Disclosure of Invention
The present invention is directed to a decorative plate with a surface coating cured by ultraviolet light and a process for preparing the same, which solves the problems set forth in the background art described above.
In order to achieve the above object, in one aspect, the present invention provides a decorative plate with a surface coating cured by ultraviolet light, comprising a plate body and a decorative coating, wherein the plate body comprises the following raw materials in parts by weight: 20-30 parts of quick lime, 30-40 parts of river sand, 20-30 parts of fly ash, 30-40 parts of stone particles, 3-7 parts of gypsum powder and 1-5 parts of pigment, wherein the plate body is subjected to ultraviolet irradiation after being soaked in a soaking solution for improving the adhesive force between the plate body and the coating and improving the film-forming spreadability of the coating on the plate body;
the decorative coating is formed by coating a plate body with a finish paint and then performing ultraviolet curing, and the coating formed by ultraviolet curing has the effects of high surface smoothness, fastness, environmental friendliness and health, reduces the release amount of harmful gas in the plate body, and improves the hardness, wear resistance and weather resistance.
As a further improvement of the technical scheme, the soaking solution comprises the following raw materials in parts by weight: 15-19 parts of epoxy acrylate, 10-15 parts of tripropylene glycol diacrylate, 1-3 parts of photoinitiator and 60-70 parts of solvent, and the raw materials are mixed by adopting a mechanical mixing method to prepare the soaking solution.
As a further improvement of the technical scheme, the solvent comprises acetone and ethyl acetate, the mixture ratio is 1:1, the solvent which volatilizes quickly is adopted, the subsequent decorative coating quality cannot be influenced, and the problem that the leveling property is influenced due to quick volatilization of the solvent when the plate body is soaked is solved.
As a further improvement of the technical scheme, the finish paint comprises the following raw materials in parts by weight: 20-30 parts of polyester acrylate, 20-30 parts of aliphatic polyurethane tetraacrylate, 10-15 parts of tripropylene glycol diacrylate, 5-9 parts of hydroxyethyl methacrylate, 10-15 parts of trimethylolpropane triacrylate, 5-9 parts of a photoinitiator, 15-20 parts of a filler and 0.1-1 part of a waterproof agent.
As a further improvement of the technical scheme, the filler comprises titanium dioxide and talcum powder, and the proportion of the titanium dioxide to the talcum powder is 1:2.
As a further improvement of the technical scheme, a fiber woven net is further arranged inside the plate body, and preferably, glass fibers are adopted for the fiber woven net, so that the strength of the plate body is further improved.
In another aspect, the present invention provides a process for preparing a decorative plate having a surface coating cured by uv light according to any one of the above processes, comprising the steps of:
s1, screening quicklime, river sand, fly ash and gypsum powder by 180 meshes, adding stone particles for mixing and grinding, wherein the internal density of a plate body can be reduced by fine powder, and the fine powder is used for improving the strength of the plate body;
s2, adding pigment for mixing and grinding, adding deionized water for stirring, and entering a mold for compression molding to obtain a plate body;
s3, grinding and polishing the plate body, removing surface dust, then adding the plate body into a soaking solution for soaking for 6-8 hours, and adopting ultraviolet light for irradiation and curing to perform soaking treatment in advance for improving the adhesive force between the plate body and the coating;
and S4, coating a layer of finish paint on the surface of the plate body, polishing after ultraviolet irradiation curing, coating a layer of finish paint again, and forming a decorative coating on the surface of the plate body after ultraviolet irradiation curing to obtain the decorative plate.
Preferably, in S3, the ultraviolet irradiation temperature is 60 ℃ and the irradiation time is 2min.
Preferably, in S4, the first ultraviolet irradiation temperature is 60 ℃, the irradiation time is 2min, and the paint thickness is 30um.
Preferably, in S4, the second ultraviolet irradiation temperature is 50 ℃, the irradiation time is 1min, and the paint thickness is 15um.
In the process, the finish paint is coated twice, so that the decorative coating is flat and smooth in appearance and better in glossiness, the first layer is thicker and is used for reinforcing the plate body, the overall mechanical property is improved, and the second layer is thinner, so that the surface of the coating is convenient to have a flat, smooth and full finishing effect after being cured.
Compared with the prior art, the invention has the beneficial effects that:
1. in the decorative plate with the ultraviolet curing surface coating and the preparation process thereof, the immersion liquid is firstly adopted to perform gold immersion treatment on the plate body, then the ultraviolet curing is performed, the adhesive force between the plate body and the decorative coating is improved, the mixing degree of the plate body and the decorative coating is enhanced, the added finish paint can further combine the decorative surface layer with the plate body better under the action of the immersion liquid, and the overall strength of the decorative plate is improved.
2. According to the decorative plate with the ultraviolet-cured surface coating and the preparation process thereof, the ultraviolet-cured decorative coating is adopted, so that the release amount of harmful gas in a plate body is reduced, the environmental protection performance is improved, the hardness, the wear resistance and the weather resistance are enhanced, and meanwhile, the finish paint is subjected to curing treatment twice, so that the decorative coating is flat and smooth in appearance and better in glossiness.
Drawings
FIG. 1 is an overall flow diagram of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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.
The embodiment of the invention provides a decorative plate with a surface coating cured by ultraviolet light, which comprises a plate body and a decorative coating, wherein the plate body comprises the following raw materials in parts by weight: 20-30 parts of quick lime, 30-40 parts of river sand, 20-30 parts of fly ash, 30-40 parts of stone particles, 3-7 parts of gypsum powder and 1-5 parts of pigment, wherein the plate body is subjected to ultraviolet irradiation after being soaked in a soaking solution for improving the adhesive force between the plate body and the coating and improving the film-forming spreadability of the coating on the plate body;
wherein, the content of calcium oxide in the quicklime is more than 65 percent; the content of silicon dioxide in the river sand is more than 65 percent, and the content of aluminum oxide is between 10 and 12 percent; the stone particles are at least one selected from marble particles and granite particles, and the granularity is 1.0-10.0mm;
in addition, the interior of the plate body is also provided with a fiber woven net, and the fiber woven net preferably adopts glass fibers and is used for further improving the strength of the plate body.
On the basis, the soaking solution comprises the following raw materials in parts by weight: 15-19 parts of epoxy acrylate, 10-15 parts of tripropylene glycol diacrylate, 1-3 parts of photoinitiator and 60-70 parts of solvent, and the raw materials are mixed by adopting a mechanical mixing method to prepare a soaking solution;
the solvent comprises acetone and ethyl acetate, the proportion is 1:1, the solvent which can volatilize quickly is adopted, the subsequent decorative coating quality cannot be influenced, and the problem that the leveling property is influenced due to quick volatilization of the solvent when the plate body is soaked is solved.
The decorative coating is formed by ultraviolet light curing after a plate body is coated with the finish paint, and the coating formed by ultraviolet light curing has the effects of high surface smoothness, fastness, environmental protection and health, reduces the release amount of harmful gas in the plate body, and improves the hardness, the wear resistance and the weather resistance.
The finish paint comprises the following raw materials in parts by weight: 20-30 parts of polyester acrylate, 20-30 parts of aliphatic polyurethane tetraacrylate, 10-15 parts of tripropylene glycol diacrylate, 5-9 parts of hydroxyethyl methacrylate, 10-15 parts of trimethylolpropane triacrylate, 5-9 parts of a photoinitiator, 15-20 parts of a filler and 0.1-1 part of a waterproof agent, the formula can improve the flexibility of a cured film, and meanwhile, the adhesive force with a plate body is better, and the decorative coating is further compounded into the plate body with better performance, so that the mechanical property of the plate body is improved;
wherein the filler comprises titanium dioxide and talcum powder, and the proportion of the titanium dioxide to the talcum powder is 1:2.
According to the invention, the immersion liquid is adopted to perform gold immersion treatment on the plate body, then ultraviolet light is cured, the adhesive force between the plate body and the decorative coating is improved, the mixing degree of the plate body and the decorative coating is enhanced, the added finish paint can further combine the decorative surface layer and the plate body better under the action of the immersion liquid, and the overall strength of the decorative plate is improved.
According to the embodiment shown in fig. 1, the embodiment of the invention also provides a preparation process for preparing the decorative plate with the surface coating cured by ultraviolet light, which comprises the following specific steps:
s1, screening quicklime, river sand, fly ash and gypsum powder by 180 meshes, adding stone particles, mixing and grinding, wherein the internal density of a plate body can be reduced by fine powder, and the fine powder is used for improving the strength of the plate body;
s2, adding pigment for mixing and grinding, adding deionized water for stirring, and entering a mold for compression molding to obtain a plate body;
s3, grinding and polishing the plate body, removing surface dust, then adding the plate body into a soaking solution for soaking for 6-8h, curing and leveling for 2min by adopting ultraviolet irradiation at the temperature of 60 ℃, and soaking in advance for improving the adhesive force between the plate body and the coating;
and S4, coating a layer of finish paint with the thickness of 30 microns on the surface of the plate body, curing and leveling for 2min by adopting ultraviolet irradiation at the temperature of 60 ℃, polishing, coating a layer of finish paint with the thickness of 15 microns again, curing and leveling for 1min by adopting ultraviolet irradiation at the temperature of 50 ℃, and forming a decorative coating on the surface of the plate body to obtain the decorative plate.
In the process, the ultraviolet light curing decorative coating is adopted, so that the release amount of harmful gas in the plate body is reduced, the environmental protection performance is improved, the hardness, the wear resistance and the weather resistance are enhanced, and meanwhile, the finish paint is subjected to curing treatment twice, so that the decorative coating is flat and smooth in appearance and better in glossiness.
The decorative plate material with ultraviolet light cured surface coating provided by the invention is further illustrated by the following specific examples according to different raw material dosages.
Example 1
1. Preparation of soak solution
And (2) blending 15 parts of epoxy acrylate, 10 parts of tripropylene glycol diacrylate, 1 part of photoinitiator and 60 parts of solvent by adopting a mechanical mixing method to prepare the soaking solution.
2. Preparation of topcoat coating
Blending 30 parts of polyester acrylate, 30 parts of aliphatic polyurethane tetraacrylate, 15 parts of tripropylene glycol diacrylate, 9 parts of hydroxyethyl methacrylate, 15 parts of trimethylolpropane triacrylate, 9 parts of photoinitiator, 15 parts of filler and 1 part of waterproof agent by adopting a mechanical mixing method to prepare finish paint,
3. preparation of decorative plate
1. Screening 20 parts of quicklime, 30 parts of river sand, 20 parts of fly ash and 3 parts of gypsum powder by using a 180-mesh sieve, and then adding 30 parts of stone particles for mixing and grinding;
2. adding 1 part of pigment, mixing and grinding, adding deionized water, stirring, and performing compression molding in a mold to obtain a plate body;
3. grinding and polishing the plate body, removing surface dust, then adding the plate body into a soaking solution for soaking treatment for 6 hours, and curing and leveling for 2min by adopting ultraviolet irradiation under the condition that the temperature is 60 ℃;
4. the surface of the plate body is coated with a layer of finish paint with the thickness of 30 microns, the plate body is cured and leveled for 2min by adopting ultraviolet irradiation under the condition that the temperature is 60 ℃, then the plate body is polished, a layer of finish paint with the thickness of 15 microns is coated again, and a decorative coating is formed on the surface of the plate body after the plate body is cured and leveled for 1min by adopting the ultraviolet irradiation under the condition that the temperature is 50 ℃, so that the decorative plate can be prepared.
Example 2
1. Preparation of soak solution
16 parts of epoxy acrylate, 12 parts of tripropylene glycol diacrylate, 1.5 parts of photoinitiator and 63 parts of solvent are blended by adopting a mechanical mixing method to prepare the soak solution.
2. Preparation of topcoat coating
By adopting a mechanical mixing method, 28 parts of polyester acrylate, 27 parts of aliphatic polyurethane tetraacrylate, 14 parts of tripropylene glycol diacrylate, 8 parts of hydroxyethyl methacrylate, 14 parts of trimethylolpropane triacrylate, 8 parts of photoinitiator, 16 parts of filler and 0.8 part of waterproof agent are blended to prepare finish paint,
3. preparation of decorative plate
1. Screening 23 parts of quicklime, 32 parts of river sand, 22 parts of fly ash and 4 parts of gypsum powder by using a 180-mesh screen, and then adding 33 parts of stone particles for mixing and grinding;
2. adding 2 parts of pigment, mixing and grinding, adding deionized water, stirring, and performing compression molding in a mold to obtain a plate body;
3. grinding and polishing the plate body, removing surface dust, then adding the plate body into a soaking solution for soaking treatment for 6 hours, and curing and leveling for 2min by adopting ultraviolet irradiation under the condition that the temperature is 60 ℃;
4. the method comprises the steps of coating a layer of finish paint on the surface of a plate body, wherein the thickness of the finish paint is 30 micrometers, curing and leveling by adopting ultraviolet irradiation for 2min at the temperature of 60 ℃, polishing, coating a layer of finish paint with the thickness of 15 micrometers again, curing and leveling by adopting ultraviolet irradiation for 1min at the temperature of 50 ℃, and forming a decorative coating on the surface of the plate body to obtain the decorative plate.
Example 3
1. Preparation of soak solution
And (2) blending 17 parts of epoxy acrylate, 13 parts of tripropylene glycol diacrylate, 2 parts of photoinitiator and 65 parts of solvent by adopting a mechanical mixing method to prepare the soaking solution.
2. Preparation of topcoat coating
Adopting a mechanical mixing method to blend 25 parts of polyester acrylate, 25 parts of aliphatic polyurethane tetraacrylate, 13 parts of tripropylene glycol diacrylate, 7 parts of hydroxyethyl methacrylate, 13 parts of trimethylolpropane triacrylate, 7 parts of photoinitiator, 18 parts of filler and 0.5 part of waterproofing agent to prepare finish paint,
3. preparation of decorative plate
1. Screening 25 parts of quicklime, 35 parts of river sand, 25 parts of fly ash and 5 parts of gypsum powder by 180 meshes, and then adding 35 parts of stone particles for mixing and grinding;
2. adding 3 parts of pigment, mixing and grinding, adding deionized water, stirring, and performing compression molding in a mold to obtain a plate body;
3. grinding and polishing the plate body, removing surface dust, then adding the plate body into a soaking solution for soaking treatment for 7 hours, and curing and leveling for 2min by adopting ultraviolet irradiation under the condition that the temperature is 60 ℃;
4. the surface of the plate body is coated with a layer of finish paint with the thickness of 30 microns, the plate body is cured and leveled for 2min by adopting ultraviolet irradiation under the condition that the temperature is 60 ℃, then the plate body is polished, a layer of finish paint with the thickness of 15 microns is coated again, and a decorative coating is formed on the surface of the plate body after the plate body is cured and leveled for 1min by adopting the ultraviolet irradiation under the condition that the temperature is 50 ℃, so that the decorative plate can be prepared.
Example 4
1. Preparation of soak solution
18 parts of epoxy acrylate, 14 parts of tripropylene glycol diacrylate, 2.5 parts of photoinitiator and 68 parts of solvent are blended by adopting a mechanical mixing method to prepare the soak solution.
2. Preparation of topcoat coating
22 parts of polyester acrylate, 23 parts of aliphatic polyurethane tetraacrylate, 12 parts of tripropylene glycol diacrylate, 6 parts of hydroxyethyl methacrylate, 12 parts of trimethylolpropane triacrylate, 6 parts of photoinitiator, 19 parts of filler and 0.3 part of waterproof agent are blended by adopting a mechanical mixing method to prepare finish paint,
3. preparation of decorative plate
1. Screening 28 parts of quicklime, 37 parts of river sand, 27 parts of fly ash and 6 parts of gypsum powder by using a 180-mesh sieve, and then adding 38 parts of stone particles for mixing and grinding;
2. adding 4 parts of pigment, mixing and grinding, adding deionized water, stirring, and performing compression molding in a mold to obtain a plate body;
3. grinding and polishing the plate body, removing surface dust, then adding the plate body into a soaking solution for soaking treatment for 8 hours, and curing and leveling for 2min by adopting ultraviolet light irradiation under the condition that the temperature is 60 ℃;
4. the surface of the plate body is coated with a layer of finish paint with the thickness of 30 microns, the plate body is cured and leveled for 2min by adopting ultraviolet irradiation under the condition that the temperature is 60 ℃, then the plate body is polished, a layer of finish paint with the thickness of 15 microns is coated again, and a decorative coating is formed on the surface of the plate body after the plate body is cured and leveled for 1min by adopting the ultraviolet irradiation under the condition that the temperature is 50 ℃, so that the decorative plate can be prepared.
Example 5
1. Preparation of soak solution
And (3) blending 19 parts of epoxy acrylate, 15 parts of tripropylene glycol diacrylate, 3 parts of photoinitiator and 70 parts of solvent by adopting a mechanical mixing method to prepare the soaking solution.
2. Preparation of topcoat coating
Blending 20 parts of polyester acrylate, 20 parts of aliphatic polyurethane tetraacrylate, 10 parts of tripropylene glycol diacrylate, 5 parts of hydroxyethyl methacrylate, 10 parts of trimethylolpropane triacrylate, 5 parts of photoinitiator, 20 parts of filler and 0.1 part of waterproof agent by adopting a mechanical mixing method to prepare finish paint,
3. preparation of decorative plate
1. Screening 30 parts of quicklime, 40 parts of river sand, 30 parts of fly ash and 7 parts of gypsum powder by 180 meshes, and then adding 40 parts of stone particles for mixing and grinding;
2. adding 5 parts of pigment, mixing and grinding, adding deionized water, stirring, and performing compression molding in a mold to obtain a plate body;
3. grinding and polishing the plate body, removing surface dust, then adding the plate body into a soaking solution for soaking for 8 hours, and curing and leveling for 2min by adopting ultraviolet irradiation under the condition that the temperature is 60 ℃;
4. the surface of the plate body is coated with a layer of finish paint with the thickness of 30 microns, the plate body is cured and leveled for 2min by adopting ultraviolet irradiation under the condition that the temperature is 60 ℃, then the plate body is polished, a layer of finish paint with the thickness of 15 microns is coated again, and a decorative coating is formed on the surface of the plate body after the plate body is cured and leveled for 1min by adopting the ultraviolet irradiation under the condition that the temperature is 50 ℃, so that the decorative plate can be prepared.
The amounts of the respective raw materials used in the above examples 1 to 5 are shown in tables 1 to 3;
TABLE 1 EXAMPLES 1-5 soaking solution raw material amounts (parts)
TABLE 2 examples 1-5 amounts (parts) of the respective materials for the topcoat coating
Table 3 examples 1-5 the amounts (parts) of the respective materials used in the plate body
| Example 1 | Example 2 | Example 3 | Example 4 | Example 5 | |
| Quick lime | 20 | 23 | 25 | 28 | 30 |
| River sand | 30 | 32 | 35 | 37 | 40 |
| Fly ash | 20 | 22 | 25 | 27 | 30 |
| Gypsum powder | 3 | 4 | 5 | 6 | 7 |
| Stone granule | 30 | 33 | 35 | 38 | 40 |
| Pigment(s) | 1 | 2 | 3 | 4 | 5 |
In order to verify that the composite decorative plate prepared by the embodiment of the invention has better mechanical properties and environmental protection, the decorative plate provided by the embodiment of the invention and having the surface coating cured by ultraviolet light is compared and explained by the following comparative examples.
Comparative example 1
The comparative example adopts the preparation process of example 1, only the soaking treatment step of removing the soaking solution and the plate body is carried out, and other raw materials and processes are unchanged, and the specific steps are as follows:
1. preparation of topcoat coating
By adopting a mechanical mixing method, 30 parts of polyester acrylate, 30 parts of aliphatic polyurethane tetraacrylate, 15 parts of tripropylene glycol diacrylate, 9 parts of hydroxyethyl methacrylate, 15 parts of trimethylolpropane triacrylate, 9 parts of photoinitiator, 15 parts of filler and 1 part of waterproof agent are mixed to prepare finish paint,
2. preparation of decorative plate
1. Screening 20 parts of quicklime, 30 parts of river sand, 20 parts of fly ash and 3 parts of gypsum powder by using a 180-mesh screen, and then adding 30 parts of stone particles for mixing and grinding;
2. adding 1 part of pigment, mixing and grinding, adding deionized water, stirring, and performing compression molding in a mold to obtain a plate body;
3. grinding and polishing the plate body, and removing surface dust;
4. the surface of the plate body is coated with a layer of finish paint with the thickness of 30 microns, the plate body is cured and leveled for 2min by adopting ultraviolet irradiation under the condition that the temperature is 60 ℃, then the plate body is polished, a layer of finish paint with the thickness of 15 microns is coated again, and a decorative coating is formed on the surface of the plate body after the plate body is cured and leveled for 1min by adopting the ultraviolet irradiation under the condition that the temperature is 50 ℃, so that the decorative plate can be prepared.
Comparative example 2
The preparation process of the embodiment 2 is adopted in the comparative example, only the soaking treatment step of removing the soaking solution and the plate body is carried out, the other raw materials and the process are not changed, the specific steps are similar to those of the comparative example 1, and the comparative example is not repeated.
Comparative example 3
The preparation process of example 3 is adopted in the comparative example, only the soaking treatment step of removing the soaking solution and the plate body is carried out, the other raw materials and the process are not changed, the specific steps are similar to those of comparative example 1, and the comparative example is not repeated.
Comparative example 4
The preparation process of example 4 is adopted in the comparative example, only the soaking treatment step of removing the soaking solution and the plate body is carried out, the other raw materials and the process are not changed, the specific steps are similar to those of comparative example 1, and the comparative example is not repeated.
Comparative example 5
The comparative example adopts the preparation process of example 5, only the soaking treatment step of removing the soaking solution and the plate body is carried out, the other raw materials and the process are not changed, the specific steps are similar to those of the comparative example 1, and the comparative example is not repeated.
The amounts of the respective raw materials used in the above comparative examples 1 to 5 are shown in tables 4 to 5;
TABLE 4 COMPARATIVE EXAMPLES 1-5 coating materials used in amounts (parts)
TABLE 5 COMPARATIVE EXAMPLES 1-5 the amounts of the respective raw materials used in the plate body
| Comparative example 1 | Comparative example 2 | Comparative example 3 | Comparative example 4 | Comparative example 5 | |
| Quick lime | 20 | 23 | 25 | 28 | 30 |
| River sand | 30 | 32 | 35 | 37 | 40 |
| Fly ash | 20 | 22 | 25 | 27 | 30 |
| Gypsum powder | 3 | 4 | 5 | 6 | 7 |
| Stone granule | 30 | 33 | 35 | 38 | 40 |
| Pigment (I) | 1 | 2 | 3 | 4 | 5 |
And (3) performance detection: the decorative plates prepared in examples 1-5 and comparative examples 1-5 of the invention were tested for mechanical properties and environmental protection properties, and the specific test indicators are shown in tables 6-7.
Table 6 examples 1-5 decorative plate test indexes
| Compressive strength (Mpa) | Hardness of | Formaldehyde purification Rate (%) | |
| Example 1 | 67.7 | ＞3H | 96.7 |
| Example 2 | 68.3 | ＞3H | 97.1 |
| Example 3 | 68.9 | ＞3H | 97.3 |
| Example 4 | 68.6 | ＞3H | 97.3 |
| Example 5 | 68.1 | ＞3H | 96.9 |
As shown in Table 6, in the examples 1 to 5 of the present invention, the compressive strength of each decorative plate was 77.0MPa or more, and the hardness was 3H or more, so that the high scratch resistance was achieved, the scratch resistance was not easily caused, and the formaldehyde purification rate was maintained at 96.5% or more;
TABLE 7 indexes of detection of samples of comparative examples 1 to 5
As shown in Table 7, in comparative examples 1 to 5 of the present invention, although the hardness of each decorative plate was 3H or more, the compressive strength was about 50MPa, which was significantly reduced and the formaldehyde purification rate was reduced by about 4% on average, as compared with the plates of examples 1 to 5, and it was thus demonstrated that the step of treating the plate body with the soak solution in the preparation of the decorative plate of the present invention was an important factor for improving the compressive strength and formaldehyde purification rate of the decorative plate.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and the present invention is not limited to the embodiments, and various changes and modifications may be made without departing from the spirit and scope of the present invention, and these changes and modifications fall within the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. Dalle through ultraviolet curing surface coating, including plate body and decorative coating, its characterized in that: the plate body comprises the following raw materials in parts by weight: 20-30 parts of quick lime, 30-40 parts of river sand, 20-30 parts of fly ash, 30-40 parts of stone particles, 3-7 parts of gypsum powder and 1-5 parts of pigment, wherein the plate body is subjected to ultraviolet irradiation after being soaked in a soaking solution;
the decorative coating is formed by ultraviolet light curing after a plate body is coated with finish paint.
2. The decorative plate material with a surface coating cured by ultraviolet light according to claim 1, wherein: the soaking solution comprises the following raw materials in parts by weight: 15-19 parts of epoxy acrylate, 10-15 parts of tripropylene glycol diacrylate, 1-3 parts of photoinitiator and 60-70 parts of solvent, and the raw materials are mixed by adopting a mechanical mixing method to prepare the soak solution.
3. The decorative plate material with a surface coating cured by ultraviolet light according to claim 2, wherein: the solvent comprises acetone and ethyl acetate, and the proportion is 1:1.
4. The decorative plate material with a surface coating cured by ultraviolet light according to claim 1, wherein: the finish paint comprises the following raw materials in parts by weight: 20-30 parts of polyester acrylate, 20-30 parts of aliphatic polyurethane tetraacrylate, 10-15 parts of tripropylene glycol diacrylate, 5-9 parts of hydroxyethyl methacrylate, 10-15 parts of trimethylolpropane triacrylate, 5-9 parts of a photoinitiator, 15-20 parts of a filler and 0.1-1 part of a waterproof agent.
5. The decorative plate material with a surface coating cured by ultraviolet light as set forth in claim 4, wherein: the filler comprises titanium dioxide and talcum powder, and the proportion of the titanium dioxide to the talcum powder is 1:2.
6. The decorative plate material with a surface coating cured by ultraviolet light according to claim 1, wherein: the interior of the plate body is also provided with a fiber woven net, and the fiber woven net preferably adopts glass fibers and is used for further improving the strength of the plate body.
7. A process for the preparation of a decorative panel for the surface coating by UV curing according to any one of claims 1 to 6, characterized in that it comprises the following steps:
s1, screening quicklime, river sand, fly ash and gypsum powder by 180 meshes, and then adding stone particles for mixing and grinding;
s2, adding pigment for mixing and grinding, adding deionized water for stirring, and entering a mold for compression molding to obtain a plate body;
s3, grinding and polishing the plate body, removing surface dust, adding the plate body into a soaking solution, soaking for 6-8 hours, and irradiating and curing by adopting ultraviolet light;
and S4, coating a layer of finish paint on the surface of the plate body, polishing after ultraviolet irradiation curing, coating a layer of finish paint again, and forming a decorative coating on the surface of the plate body after ultraviolet irradiation curing to obtain the decorative plate.
8. The process for preparing a decorative plate with a uv curable surface coating according to claim 7, wherein: in the S3, the ultraviolet irradiation temperature is 60 ℃, and the irradiation time is 2min.
9. The process for preparing a decorative plate with a uv curable surface coating according to claim 7, wherein: in S4, the first ultraviolet irradiation temperature is 60 ℃, the irradiation time is 2min, and the paint thickness is 30um.
10. The process for preparing a decorative plate with a uv-curable surface coating according to claim 7, wherein: in S4, the second ultraviolet irradiation temperature is 50 ℃, the irradiation time is 1min, and the paint thickness is 15um.
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| CN116060276A (en) * | 2023-02-21 | 2023-05-05 | 小森新材料科技有限公司 | Facing technology for artificial board surface 3D display Kong Muwen paint surface numerical control color matching decoration |
| CN118577464A (en) * | 2024-08-05 | 2024-09-03 | 中关村人居环境工程与材料研究院 | Antibacterial purifying inorganic light-weight veneer and preparation method thereof |
| CN118577464B (en) * | 2024-08-05 | 2024-10-22 | 中关村人居环境工程与材料研究院 | Antibacterial purifying inorganic light-weight veneer and preparation method thereof |
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