CN112778896A - Ceramic tile-imitated wood floor and preparation method thereof - Google Patents

Ceramic tile-imitated wood floor and preparation method thereof Download PDF

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Publication number
CN112778896A
CN112778896A CN202110036181.3A CN202110036181A CN112778896A CN 112778896 A CN112778896 A CN 112778896A CN 202110036181 A CN202110036181 A CN 202110036181A CN 112778896 A CN112778896 A CN 112778896A
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coating
parts
moisture
layer
wood
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Inventor
佘学彬
沈小笛
刘颖
杨亮庆
仲利涛
莫德旺
欧阳倩雯
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Guangdong Nature Home Technology Research Co Ltd
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Guangdong Nature Home Technology Research Co 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
    • C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
    • C09D175/04—Polyurethanes
    • 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
    • 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
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • E04F15/02—Flooring or floor layers composed of a number of similar elements
    • E04F15/04—Flooring or floor layers composed of a number of similar elements only of wood or with a top layer of wood, e.g. with wooden or metal connecting members
    • 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
    • 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
    • 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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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Architecture (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Floor Finish (AREA)
  • Laminated Bodies (AREA)

Abstract

The invention discloses a ceramic tile-imitated wood floor, which comprises a wood base material, wherein the front surface of the wood base material is provided with an ink-jet pattern layer, and the back surface of the wood base material is provided with a moisture-proof layer; the moisture-proof layer is prepared from a moisture-proof coating, and the moisture-proof coating comprises the following components: the polyurethane emulsion comprises a polyurethane dispersion, a paraffin emulsion and a nano titanium dioxide dispersion, wherein the nano titanium dioxide dispersion is obtained by dispersing nano titanium dioxide into a dispersion system, the mass fraction of the nano titanium dioxide is 10-15%, and the dispersion system comprises organosilane, water and a solvent. The moisture-proof layer can play a role in isolating moisture and preventing mildew, and prevents the wood base material from rotting to influence the decorative pattern.

Description

Ceramic tile-imitated wood floor and preparation method thereof
Technical Field
The invention belongs to the technical field of wood floors, and particularly relates to a ceramic tile-imitated wood floor and a preparation method thereof.
Background
The wood floor is popular with people due to unique and attractive patterns, however, the back surface of the existing wood floor is poor in moisture-proof and corrosion-resistant performance, and the application of the wood floor is limited. In addition, the wood floor is generally decorated by the composite template, but due to the natural defects of wood such as crusting and the like, wood chips need to be selected in the processing and manufacturing process, so that a large amount of labor cost and material waste are brought, and the concept of resource saving and sustainable development is not met.
In order to solve the above problems, some researchers and enterprises have proposed a technical route for applying the inkjet printing technology to the production process of the wood floor, that is, printing the decorative pattern on the surface of the wood floor by using the inkjet printing technology. The ink-jet printing technology is widely applied in the field of ceramic tiles, and provides powerful guarantee for improving the decoration effect of the ceramic tiles. However, since the wood floor surface is very different from the ceramic tile surface, it is difficult to directly utilize the inkjet technology suitable for ceramic tiles. At present, the application of ink-jet printing in the field of wood is still in the beginning stage, and the problems of low printing resolution, poor bonding strength of ink and a base material and the like mainly exist; particularly, as the wood has more interface pores, high water absorption rate, easy water absorption expansion and uneven surface, the printing resolution is low, and the application of the ink-jet printing technology in the field of template wood floor preparation is greatly limited.
Disclosure of Invention
The invention aims to solve the technical problem of providing a ceramic tile-imitated wood floor which has good moisture-proof and antibacterial functions.
The invention also aims to solve the technical problem of providing a preparation method of the ceramic tile-imitated wood floor.
In order to solve the technical problem, the invention discloses a ceramic tile-imitated wood floor which comprises a wood base material, wherein an ink-jet pattern layer is arranged on the front surface of the wood base material, and a moisture-proof layer is arranged on the back surface of the wood base material;
the moisture-proof layer is prepared from a moisture-proof coating, and the moisture-proof coating comprises the following components in parts by volume:
80-93 parts of a polyurethane dispersion;
4-10 parts of paraffin emulsion;
3-10 parts of nano titanium dioxide dispersion liquid;
the nano titanium dioxide dispersion liquid is obtained by dispersing nano titanium dioxide into a dispersion system, wherein the mass fraction of the nano titanium dioxide is 10-15%, and the dispersion system comprises the following components in parts by volume:
3-7 parts of organosilane;
2-5 parts of water;
90-95 parts of a solvent;
the solvent is one or more of methanol, ethanol and acetone.
As an improvement of the technical scheme, a sound insulation layer is further arranged on the moisture-proof layer, the sound insulation layer is of a honeycomb structure, and the thickness of the sound insulation layer is 3-5 mm;
the organosilane is polydimethylsiloxane and/or n-octyltriethoxysilane.
As an improvement of the technical scheme, a pore filling layer and a hydrophobic coating are sequentially arranged between the wood base material and the ink-jet pattern layer;
the pore filling layer is made of pore filling paint, and the pore filling paint is one or more of putty, epoxy resin cement and polyester resin cement.
As an improvement of the technical scheme, the hydrophobic coating is made of hydrophobic paint, and the hydrophobic paint is mainly made of the following raw materials in parts by weight:
Figure BDA0002893275920000021
wherein the modified polyurethane acrylate dispersion comprises the following components in parts by volume:
85-90 parts of a polyurethane acrylate dispersion;
3-5 parts of a silane coupling agent;
5-10 parts of inorganic nano powder dispersion liquid;
wherein the inorganic nano powder dispersion liquid is a mixed solution of inorganic nano powder and the dispersion liquid;
the inorganic nano powder is one or more of nano cerium oxide powder, nano titanium oxide powder, nano silicon oxide powder and nano tin oxide powder.
As an improvement of the technical scheme, the inorganic nano powder is firstly subjected to plasma fluorination treatment and then is dispersed in a dispersion liquid to prepare an inorganic nano powder solution;
in the inorganic nano powder dispersion liquid, the mass fraction of inorganic nano powder is 22-40%; the dispersion liquid is water and/or alcohol;
the plasma fluorination treatment comprises: placing inorganic nano powder in dielectric barrier discharge plasma equipment, and carrying out plasma fluorination treatment on the inorganic nano powder by taking carbon tetrafluoride and argon as reaction gases; wherein the treatment voltage is 13-18 kV, the treatment frequency is 55-65 kHz, and the treatment time is 10-30 min;
wherein the volume ratio of the carbon tetrafluoride to the argon is 1 (8-12).
As an improvement of the technical scheme, the inorganic nano powder is selected from nano cerium oxide powder or nano tin oxide powder, and the dispersion liquid is selected from an ethanol water solution, wherein the volume fraction of the ethanol water solution is 55-65%;
in the polyurethane acrylate dispersion, the concentration of polyurethane is 23-28 wt%, the concentration of acrylate is 11-15 wt%, the content of water is 60-65 wt%, the solid content is 37-40%, and the pH value is 6-8.
As an improvement of the technical scheme, an ink absorption coating is arranged between the hydrophobic coating and the ink-jet pattern layer, and a wear-resistant coating is arranged on the ink-jet pattern layer.
As an improvement of the technical scheme, the hydrophobic coating is prepared by the following method:
(1) uniformly mixing 5-10 parts by volume of inorganic nano powder dispersion liquid, 85-90 parts by volume of polyurethane acrylate dispersion liquid and 3-5 parts by volume of silane coupling agent to obtain modified polyurethane acrylate dispersion liquid;
(2) 0.6-3.5 parts by weight of graphene oxide, 0.5-1 part by weight of azobenzene and 4-10 parts by weight of polytetrafluoroethylene are sequentially added into 86-94 parts by weight of the modified polyurethane acrylate dispersoid, the mixture is stirred and reacted for 40-60 min at the temperature of 60-65 ℃, and then ultrasonic treatment is carried out for 20-40 min, so that a finished product of the hydrophobic coating is obtained.
Correspondingly, the invention also discloses a preparation method of the ceramic tile-imitated wood floor, which comprises the following steps:
(1) providing a wood substrate;
(2) coating a moisture-proof coating on the back of the wood substrate, and curing to form a moisture-proof layer;
(3) and (3) printing a decorative pattern on the front surface of the wood base material obtained in the step (2) to form an ink-jet pattern layer, thus obtaining the finished product of the ceramic tile-imitated wood bottom plate.
As an improvement of the technical scheme, the step (2) comprises the following steps:
(2.1) coating a moisture-proof coating on the back surface of the wood substrate, and curing to form a moisture-proof layer;
(2.2) adhering a sound insulation layer on the moisture-proof layer;
the step (3) comprises the following steps:
(3.1) coating a pore filling coating on the front surface of the wood substrate obtained in the step (2.2) to form a pore filling layer;
(3.2) coating a hydrophobic coating on the pore-filling layer to form a hydrophobic coating;
(3.3) coating an ink-absorbing coating on the hydrophobic coating to form an ink-absorbing coating;
(3.4) carrying out ink-jet printing on a decorative pattern on the surface of the ink-absorbing layer to form an ink-jet pattern layer;
and (3.5) coating the wear-resistant coating on the ink-jet pattern layer to form a wear-resistant coating, thus obtaining the finished product of the ceramic tile-imitated wood floor.
The implementation of the invention has the following beneficial effects:
1. according to the ceramic tile-imitated wood floor, the moisture-proof layer with a specific formula is arranged on the back surface of the wood base material, so that the effects of isolating moisture and preventing mildew can be achieved, and the wood base material is prevented from being rotten to influence decorative patterns. In addition, the ceramic tile-imitated wood floor also has the sound insulation layer arranged on the moisture-proof layer, plays the roles of sound insulation and shock absorption and improves the service performance of the ceramic tile-imitated wood floor.
2. According to the ceramic tile-imitated wood floor, the front surface of a wood base material is coated with a hole filling coating and a hydrophobic coating, then a decorative pattern is printed by ink jet, and finally a wear-resistant coating is coated on the decorative pattern. The pore spaces such as micro-conduits on the surface of the wooden substrate can be effectively filled by the pore filling coating, the antistatic performance, the water resistance and the size stability can be effectively enhanced by the hydrophobic coating, the surface self-cleaning of the wooden substrate is realized, the penetration depth of the printing ink in the spraying process is reduced, and the printing precision is improved. Simultaneously, through decorating surface coating abrasion-resistant coating, can promote wooden ceramic tile's surperficial wearability and aesthetic property for wooden ceramic tile is durable more. Through the matching of the structures, the printing precision can reach more than 9600 dpi.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below.
The invention discloses a ceramic tile-imitated wood floor which comprises a wood base material 1, an interface modification layer arranged on the front surface of the wood base material, an ink-jet pattern layer and a moisture-proof layer arranged on the back surface of the wood base material.
The wood substrate can be natural wood board or plywood, but is not limited thereto. Preferably, the wood substrate is plywood, and the material of the plywood can be beech, cinnamomum camphora, willow, poplar and eucalyptus, but is not limited to the wood.
Preferably, in the invention, the plywood is formed by symmetrically distributing 5-8 layers of eucalyptus veneers, vertically and crisscross assembling the eucalyptus veneers in a crisscross manner, and then hot pressing; arranging an adhesive between the adjacent eucalyptus veneers; the adhesive comprises the following components in parts by weight: 1-2 parts of active magnesium oxide, 7-8 parts of phenolic resin, 88-90 parts of MDI resin adhesive and 0.1-1 part of nano titanium dioxide. This kind of plywood stable in structure combines firmly, and has better water proofness. Specifically, the length of impregnation stripping of the plywood is less than 10mm, the bonding strength is more than or equal to 1.2MPa, and the thickness is 10-15 mm.
The moisture-proof layer is made of moisture-proof paint, and the coating amount of the moisture-proof paint is 100-150 g/m2. The moisture-proof coating comprises the following components in parts by volume:
80-93 parts of a polyurethane dispersion;
4-10 parts of paraffin emulsion;
3-10 parts of nano titanium dioxide dispersion liquid;
the nano titanium dioxide dispersion liquid is obtained by dispersing nano titanium dioxide into a dispersion system, wherein the mass fraction of the nano titanium dioxide is 10-15%, and the dispersion system comprises the following components in parts by volume:
3-7 parts of organosilane;
2-5 parts of water;
90-95 parts of a solvent;
the solvent is one or more of methanol, ethanol and acetone. The organosilane is n-octyltriethoxysilane and/or polydimethylsiloxane.
The polyurethane dispersion is an emulsion which takes polyurethane and water as main components, and the solid content of the polyurethane dispersion reaches 34-36%; specifically, it can be selected from the model number produced by Vanhua chemical Co., Ltd
Figure BDA0002893275920000051
4115, but is not limited thereto. The paraffin emulsion has the particle size of 3-5 mu m and the solid content of 45-50%; the paint has excellent hydrophobicity and antibacterial performance through compounding the paraffin emulsion, the polyurethane dispersion and the nano titanium dioxide.
In the nano titanium dioxide dispersion liquid, the organosilane can improve the dispersion of the nano titanium dioxide in the moisture-proof coating and improve the hydrophobic property of the nano titanium dioxide. After the nano titanium dioxide is modified by the organosilane, the hydrophobicity of the moisture-proof coating can be effectively improved, and the comprehensive properties of the coating, such as hardness, weather resistance and the like, can be improved.
Specifically, the preparation method of the moisture-proof coating comprises the following steps:
(1) dispersing nano titanium dioxide into a mixed solution of organosilane, water and a solvent, and keeping the temperature of the mixed solution at 40-50 ℃ during dispersion to obtain a nano titanium dioxide dispersion liquid;
(2) and uniformly mixing the nano titanium dioxide dispersion liquid, the paraffin emulsion and the polyurethane dispersion to obtain a finished product of the moisture-proof coating.
Furthermore, still be equipped with the puigging on the dampproof course, its thickness is 3 ~ 5 mm. The soundproof layer can play the effect of sound insulation, shock attenuation buffering, the performance of reinforcing wooden floor. The sound insulation layer is of a honeycomb structure, and specifically, foamed ceramics and modified ethylene-vinyl acetate copolymer can be used, but are not limited to the foamed ceramics and the modified ethylene-vinyl acetate copolymer; preferably, the sound insulation layer is made of modified ethylene-vinyl acetate copolymer, and the sound insulation layer can be directly adhered to the moisture-proof layer through double-sided adhesive tape.
Specifically, the interface modification layer comprises a hole filling layer arranged on the front surface of the wood base material, a hydrophobic coating arranged on the hole filling layer and an ink absorption coating arranged on the hydrophobic coating. Through the modification of the interface modification layer, the inkjet printing precision of the invention is greatly improved, so that the invention can realize the inkjet printing of high-simulation natural wood grains. Meanwhile, in the invention, the precious tree species gallery component can be used for quickly printing various imitated natural wood grains (the printing speed can reach more than 30 m/min), and the splicing design of personalized customized patterns can be realized, thereby greatly enriching the decorative effect of the wood floor tile.
Wherein the pore-filling layer is prepared from pore-filling paint; the pore-filling coating can be one or more of putty, epoxy resin cement and polyester resin cement commonly used in the field. The preferable pore-filling coating adopts putty with the coating amount of 100-120 g/m2. The pore-filling coating can fill pores such as micro-conduits on the surface of the wood substrate, enhances the flatness of the surface of the substrate, and provides a good foundation for later-stage coating of other coatings and inkjet printing.
The hydrophobic coating is prepared from a hydrophobic coating which is mainly prepared from the following raw materials in parts by weight:
Figure BDA0002893275920000061
wherein the modified polyurethane acrylate dispersion comprises the following components in parts by volume:
85-90 parts of a polyurethane acrylate dispersion;
3-5 parts of a silane coupling agent;
5-10 parts of inorganic nano powder dispersion liquid;
wherein the inorganic nano powder dispersion liquid is a mixed solution of inorganic nano powder and the dispersion liquid; the mass fraction of the inorganic nano powder is 22-40%. The inorganic nano powder is selected from one or more of nano cerium oxide powder, nano titanium oxide powder, nano silicon oxide powder and nano tin oxide powder, and the dispersion liquid can be alcohol and/or water, but is not limited to the above. Preferably, in the invention, the inorganic nano powder is nano cerium oxide powder, and the dispersion liquid is ethanol water solution with volume fraction of 55-65%; the inorganic nano powder dispersion liquid has better compatibility with polyurethane acrylate dispersion.
Specifically, the inorganic nano-powder is dispersed in the dispersion liquid to obtain the inorganic nano-powder dispersion liquid. Preferably, in the invention, the inorganic nano powder is subjected to plasma fluorination treatment and then is dispersed in the dispersion liquid; the dispersion degree of the inorganic nano powder in the hydrophobic coating can be improved through plasma fluorination treatment, the compatibility is improved, the agglomeration is prevented, and various performances of the hydrophobic coating are effectively improved.
Specifically, the plasma fluorination treatment comprises the following steps: (1) placing inorganic nano powder on a quartz glass plate, and then placing the inorganic nano powder and the quartz glass plate together in the middle of an electrode of a Dielectric Barrier Discharge (DBD) plasma processing device; (2) charging CF in the ratio of 1 (8-12)4A mixed gas of/Ar; (3) and opening the plasma generator, adjusting the voltage to be 13-18 kV and the frequency to be 55-65 kHz, and carrying out fluorination treatment for 10-30 min to obtain the treated inorganic nano powder.
Among them, the urethane acrylate dispersion is the main matrix of the hydrophobic coating in the invention, has excellent wear resistance, low-temperature film forming property, flexibility and weather resistance, and is widely applied to coatings in various fields. Preferably, in the invention, the aqueous polyurethane acrylate dispersion is selected, wherein the concentration of polyurethane is 23-28 wt%, the concentration of acrylate is 11-15 wt%, the content of water is 60-65 wt%, the solid content is 37-40%, and the pH is 6-8. This type of urethane acrylate dispersion has high mechanical strength, excellent abrasion resistance, and the hardness and softness are less affected by temperature.
The silane coupling agent is mainly used for assisting the dispersion of inorganic nano powder in the polyurethane acrylate dispersoid and improving various performances of the hydrophobic coating. Fluorine-containing silane coupling agents may be used, and specifically, one or more of trifluoropropyltrimethoxysilane, trifluoropropyltriethoxysilane, trifluoropropylmethyldimethoxysilane, heptadecafluorodecyltrimethoxysilane, and tridecafluorooctyltriethoxysilane may be used, but not limited thereto. Preferably, trifluoropropyltrimethoxysilane is used.
Specifically, the polyurethane acrylate dispersion can be modified by fully mixing the polyurethane acrylate dispersion, the silane coupling agent and the inorganic nano powder dispersion.
Specifically, the urethane acrylate dispersion is used in an amount of 85 to 90 parts by volume, for example, 85.5 parts, 86 parts, 87 parts, 88 parts, 88.5 parts, 89 parts, and 89.5 parts, but not limited thereto. The silane coupling agent is used in an amount of 3 to 5 parts, for example, 3.2 parts, 3.5 parts, 3.9 parts, 4.2 parts, and 4.5 parts, but not limited thereto. The amount of the inorganic nano-powder dispersion is 5 to 10 parts by volume, such as 5 parts, 6 parts, 7 parts, 8 parts, 9 parts, and 10 parts, for example, but not limited thereto.
In the hydrophobic coating, graphene oxide is a good interface modifier, and can cooperate with other components in the hydrophobic coating (particularly inorganic nano powder), so that the volume resistivity of the coating is effectively reduced, and the hydrophobic coating is endowed with antistatic performance. The graphene oxide is used in an amount of 0.6 to 3.5 parts, and when the amount of the graphene oxide is more than 3.5 parts, the hydrophobicity of the hydrophobic coating is reduced, and when the amount of the graphene oxide is less than 0.6 part, the volume resistivity of the coating is difficult to be effectively reduced. Preferably, the amount of the graphene oxide is 0.6-2.8 parts, such as 0.8 part, 1.0 part, 1.4 parts, 1.8 parts, 2.2 parts, and 2.6 parts, but is not limited thereto.
The polytetrafluoroethylene can be copolymerized with the modified polyurethane acrylate dispersoid under the initiation of azobenzene, so that the mechanical strength, the hydrophobic property, the antistatic property and other properties of the hydrophobic coating are effectively improved. Specifically, the polytetrafluoroethylene is used in an amount of 4 to 10 parts by weight, illustratively 4 parts, 5 parts, 5.5 parts, 6 parts, 8 parts, and 9 parts, but is not limited thereto.
Correspondingly, the invention also discloses a preparation method of the hydrophobic coating, which comprises the following steps:
(1) uniformly mixing 5-10 parts by volume of inorganic nano powder dispersion liquid, 85-90 parts by volume of polyurethane acrylate dispersion liquid and 3-5 parts by volume of silane coupling agent to obtain modified polyurethane acrylate dispersion liquid;
specifically, the inorganic nano powder is subjected to plasma fluorination treatment, then the treated inorganic nano powder is mixed with dispersion liquid, and the mixture is stirred for 15-30 min at the temperature of 40-50 ℃, so that inorganic nano powder dispersion liquid is obtained; and then uniformly mixing the inorganic nano powder dispersion liquid, the polyurethane acrylate dispersion liquid and the silane coupling agent to obtain the polyurethane acrylate/silane coupling agent composite material.
(2) 0.6-3.5 parts by weight of graphene oxide, 0.5-1 part by weight of azobenzene and 4-10 parts by weight of polytetrafluoroethylene are sequentially added into 86-94 parts by weight of the modified polyurethane acrylate dispersoid, the mixture is stirred for 40-60 min, and then ultrasonic treatment is carried out for 20-40 min, so that a finished product of the hydrophobic coating is obtained.
The ink absorbing coating 23 is made of ink absorbing paint, and the ink absorbing coating 23 can enhance the adhesive force between the ink-jet printing ink and the surface of the base material and can improve the printing precision; so that a high simulation pattern with clear edges, full color and layering is formed on the surface of the wood base material 1. Specifically, the ink-absorbing coating can be a pure acrylic emulsion ink-absorbing coating or a vinyl acetate acrylic emulsion ink-absorbing coating, and preferably, the pure acrylic emulsion ink-absorbing coating is selected. Such as, but not limited to, an ink receptive coating manufactured by Shanghai Bo help chemical Limited under model number RvoeoXM-380.
Wherein the inkjet pattern layer is formed by an inkjet printing process. After the surface of the wood base material is modified by the interface modification layer, the ink-jet printing precision is greatly improved, and the ink-jet printing of high-simulation natural wood grains is realized. Meanwhile, the printing speed is greatly increased (the printing speed can reach more than 30 m/min). In addition, after the ink-jet printing technology is adopted, the construction of the precious tree species gallery can be used for quickly printing various imitated natural wood grains, the splicing design of personalized customized patterns can be realized, and the decorative effect of the wood floor tile is greatly enriched.
Further, in the present invention, an abrasion resistant coating layer is further provided on the inkjet pattern layer. The specific coating of the wear-resistant coating can be wear-resistant wood paint common in the field, such as wear-resistant anti-cracking finish paint of BMG0XXG produced by three-tree coating company Limited, and the coating amount is 220-280 g/m2。
Correspondingly, the invention also discloses a preparation method of the ceramic tile-imitated wood floor, which comprises the following steps:
(1) providing a wood substrate;
(2) coating a moisture-proof coating on the back of the wood substrate, and curing to form a moisture-proof layer;
the specific step (2) comprises the following steps:
(2.1) coating a moisture-proof coating on the back surface of the wood substrate, and curing to form a moisture-proof layer;
(2.2) adhering a sound insulation layer on the moisture-proof layer;
(3) and (3) printing a decorative pattern on the front surface of the wood base material obtained in the step (2) to form an ink-jet pattern layer, thus obtaining the finished product of the ceramic tile-imitated wood bottom plate.
Specifically, the step (3) comprises the following steps:
the step (3) comprises the following steps:
(3.1) coating a pore filling coating on the front surface of the wood substrate obtained in the step (2.2) to form a pore filling layer;
(3.2) coating a hydrophobic coating on the pore-filling layer to form a hydrophobic coating;
(3.3) coating an ink-absorbing coating on the hydrophobic coating to form an ink-absorbing coating;
(3.4) carrying out ink-jet printing on a decorative pattern on the surface of the ink-absorbing layer to form an ink-jet pattern layer;
and (3.5) coating the wear-resistant coating on the ink-jet pattern layer to form a wear-resistant coating, thus obtaining the finished product of the ceramic tile-imitated wood floor.
The invention is further illustrated by the following specific examples:
example 1
This implementation provides a wood floor of imitative ceramic tile, and it includes wooden substrate, establishes the ink jet pattern layer at wooden substrate openly and establishes the dampproofing coating at wooden substrate back.
Wherein, the wood base material is formed by assembling 7 layers of eucalyptus veneers in a symmetrical distribution, vertical and staggered manner and in a crisscross manner, and then carrying out hot pressing; arranging an adhesive between the adjacent eucalyptus veneers; the adhesive comprises the following components in parts by weight: 2 parts of active magnesium oxide, 7 parts of phenolic resin, 90 parts of MDI resin adhesive and 1 part of nano titanium dioxide.
The moisture-proof coating is made of moisture-proof paint. The moisture-proof coating comprises the following components in parts by volume:
82 parts of a polyurethane dispersion;
9 parts of paraffin emulsion;
9 parts of nano titanium dioxide dispersion liquid;
wherein the polyamine isThe ester dispersion is prepared from Vanhua chemical Co., Ltd
Figure BDA0002893275920000091
4115, a product of; the paraffin emulsion has the particle size of 3-5 mu m and the solid content of 45-47%.
In the nano titanium dioxide dispersion liquid, the nano titanium dioxide accounts for 12 wt%; the dispersion comprises the following components in parts by volume:
5 parts of polydimethylsiloxane;
5 parts of water;
90 parts of absolute ethyl alcohol;
the preparation method of the moisture-proof coating comprises the following steps:
(1) dispersing nano titanium dioxide into a mixed solution of polydimethylsiloxane, water and a solvent, and keeping the temperature of the mixed solution at 45 ℃ during dispersion to obtain a nano titanium dioxide dispersion liquid;
(2) and uniformly mixing the nano titanium dioxide dispersion liquid, the paraffin emulsion and the polyurethane dispersion to obtain a finished product of the moisture-proof coating.
Wherein the coating amount of the moisture-proof coating is 150g/m2。
Example 2
The embodiment provides a wood floor of imitative ceramic tile, and it includes wooden substrate, sets up at the positive pore-filling layer of wooden substrate, hydrophobic coating, inkjet pattern layer and wear-resisting coating, sets up at the dampproofing coating and the puigging at the wooden substrate back.
Wherein, the wood base material is formed by symmetrically distributing 7 layers of eucalyptus veneers, vertically and crisscross assembling the veneers in a crisscross way, and then hot pressing; arranging an adhesive between the adjacent eucalyptus veneers; the adhesive comprises the following components in parts by weight: 2 parts of active magnesium oxide, 7 parts of phenolic resin, 90 parts of MDI resin adhesive and 1 part of nano titanium dioxide.
Wherein the pore-filling layer is made of pore-filling paint, the pore-filling paint is epoxy daub produced by Guizhou Zonengda building materials Co., Ltd, and the coating amount is 120g/m2；
(III) wherein (I) the first and second substrates are,the hydrophobic coating is made of hydrophobic paint, and the coating amount of the hydrophobic paint is 140g/m2. The formula of the hydrophobic coating comprises:
Figure BDA0002893275920000101
wherein the modified polyurethane acrylate dispersion comprises the following components in parts by volume:
87 parts of a polyurethane acrylate dispersion;
4 parts of a silane coupling agent;
9 parts of inorganic nano powder dispersion liquid;
wherein the silane coupling agent is tridecafluorooctyltriethoxysilane, the polyurethane dispersion has a polyurethane concentration of 25 wt%, an acrylate concentration of 14 wt%, a water content of 61 wt%, a solid content of 38% and a pH of 7.
The inorganic nano powder dispersion liquid is a mixed solution of nano tin oxide powder (with the content of 30 wt%) and water.
The preparation method of the hydrophobic coating comprises the following steps:
(1) dispersing the nano tin oxide powder into water to obtain inorganic nano powder dispersion liquid;
(2) uniformly mixing inorganic nano powder dispersion liquid, polyurethane acrylate dispersion and a silane coupling agent to obtain modified polyurethane acrylate dispersion;
(3) and sequentially adding graphene oxide, azobenzene and polytetrafluoroethylene into the modified polyurethane acrylate dispersoid, stirring for 45min, and then carrying out ultrasonic treatment for 20min to obtain a finished product of the hydrophobic coating.
(IV) the wear-resistant coating is made of wear-resistant paint, and the coating amount is 280g/m2(ii) a The wear-resistant paint is wear-resistant anti-cracking finish paint with the model of BMG0XXG produced by three-tree paint company Limited, and the coating amount is 280g/m2。
Wherein the moisture-proof coating is made of moisture-proof paint and the coating amount is 120g/m2(ii) a The moisture-proof coating comprisesThe following components in parts by volume:
Figure BDA0002893275920000111
411581 parts of a binder;
9 parts of paraffin emulsion;
10 parts of nano titanium dioxide dispersion liquid;
wherein the particle size of the paraffin emulsion is 3-5 μm, and the solid content is 45-47%.
In the nano titanium dioxide dispersion liquid, the nano titanium dioxide accounts for 15 wt%; the dispersion comprises the following components in parts by volume:
7 parts of n-octyl triethoxysilane;
3 parts of water;
90 parts of absolute ethyl alcohol;
the preparation method of the moisture-proof coating comprises the following steps:
(1) dispersing nano titanium dioxide into a mixed solution of polydimethylsiloxane, water and a solvent, and keeping the temperature of the mixed solution at 45 ℃ during dispersion to obtain a nano titanium dioxide dispersion liquid;
(2) stirring the nano titanium dioxide dispersion liquid, the paraffin emulsion and the polyurethane dispersion for 30min, and then carrying out ultrasonic treatment for 25min to obtain a finished product of the moisture-proof coating.
And (VI) the moisture-proof layer is a modified ethylene-vinyl acetate copolymer with a honeycomb structure, and the thickness of the moisture-proof layer is 4 mm.
The preparation method of the ceramic tile-imitated wood floor comprises the following steps:
(1) providing a wood substrate;
(2) coating a moisture-proof coating on the back of the wood substrate, and curing to form a moisture-proof layer;
(3) bonding a sound insulation layer on the moisture-proof layer;
(4) coating a pore filling coating on the front surface of the wood substrate obtained in the step (3) to form a pore filling layer;
(5) coating a hydrophobic coating on the pore-filling layer to form a hydrophobic coating;
(6) printing a decorative pattern on the surface of the hydrophobic coating by ink-jet printing to form an ink-jet pattern layer;
(7) and coating the wear-resistant coating on the ink-jet pattern layer to form a wear-resistant coating, thus obtaining the finished product of the ceramic tile-imitated wood floor.
Example 3
The embodiment provides a imitative wooden floor of ceramic tile, and it includes wooden substrate, sets up at the positive pore-filling layer of wooden substrate, hydrophobic coating, blotter coating, ink jet pattern layer and wear-resisting coating, sets up dampproofing coating and the puigging at the wooden substrate back.
Wherein, the wood base material is formed by symmetrically distributing 7 layers of eucalyptus veneers, vertically and crisscross assembling the veneers in a crisscross way, and then hot pressing; arranging an adhesive between the adjacent eucalyptus veneers; the adhesive comprises the following components in parts by weight: 2 parts of active magnesium oxide, 7 parts of phenolic resin, 90 parts of MDI resin adhesive and 1 part of nano titanium dioxide;
wherein the pore-filling layer is made of pore-filling paint, the pore-filling paint is selected from putty, and the coating amount is 120g/m2；
(III) wherein the hydrophobic coating is made of hydrophobic paint, and the coating amount of the hydrophobic paint is 140g/m2. The formula of the hydrophobic coating comprises:
Figure BDA0002893275920000121
wherein the modified polyurethane acrylate dispersion comprises the following components in parts by volume:
87 parts of a polyurethane acrylate dispersion;
4 parts of a silane coupling agent;
9 parts of inorganic nano powder dispersion liquid;
wherein, the silane coupling agent is trifluoropropyltrimethoxysilane; in the polyurethane acrylate dispersion, the polyurethane concentration was 25% by weight, the acrylate concentration was 14% by weight, the water content was 61% by weight, the solids content was 38% and the pH was 7.
The inorganic nano powder is nanoA mixed solution of tin oxide powder (content 30 wt%) and alcohol (70 vol%). And the nano tin oxide powder is subjected to plasma fluorination treatment in advance, and the specific treatment is as follows: placing nano tin oxide powder on a quartz glass plate, and then placing the nano tin oxide powder and the quartz glass plate together in the middle of an electrode of a Dielectric Barrier Discharge (DBD) plasma processing device; charging CF in a ratio of 1:104A mixed gas of/Ar; the plasma generator was turned on, the voltage was adjusted to 13kV, the frequency was 55kHZ, and the fluorination treatment was carried out for 15 min.
The preparation method of the hydrophobic coating comprises the following steps:
(1) performing plasma fluorination treatment on the inorganic nano powder, and then dispersing the inorganic nano powder into alcohol at 45 ℃ to obtain inorganic nano powder dispersion liquid;
(3) uniformly mixing inorganic nano powder dispersion liquid, polyurethane acrylate dispersion and a silane coupling agent to obtain modified polyurethane acrylate dispersion;
(4) and sequentially adding graphene oxide, azobenzene and polytetrafluoroethylene into the modified polyurethane acrylate dispersoid, stirring for 40min, and then carrying out ultrasonic treatment for 20min to obtain a finished hydrophobic coating.
The ink absorbing coating is made of ink absorbing paint, and the ink absorbing paint is made of ink absorbing paint of the type RvoeoXM-380 produced by Shanghai Bozhang chemical Limited; the coating weight was 80g/m2。
Wherein the wear-resistant coating is made of wear-resistant paint and the coating amount is 280g/m2(ii) a The wear-resistant paint is wear-resistant anti-cracking finish paint which is produced by three-tree paint company Limited and has the model of BMG0 XXG.
(VI) wherein the moisture-proof coating is made of moisture-proof paint and the coating amount is 120g/m2(ii) a The moisture-proof coating comprises the following components in parts by volume:
Figure BDA0002893275920000131
411581 parts of a binder;
9 parts of paraffin emulsion;
10 parts of nano titanium dioxide dispersion liquid;
wherein the particle size of the paraffin emulsion is 3-5 μm, and the solid content is 45-47%.
In the nano titanium dioxide dispersion liquid, the nano titanium dioxide accounts for 15 wt%; the dispersion comprises the following components in parts by volume:
7 parts of n-octyl triethoxysilane;
3 parts of water;
90 parts of absolute ethyl alcohol;
the preparation method of the moisture-proof coating comprises the following steps:
(1) dispersing nano titanium dioxide into a mixed solution of polydimethylsiloxane, water and a solvent, and keeping the temperature of the mixed solution at 45 ℃ during dispersion to obtain a nano titanium dioxide dispersion liquid;
(2) stirring the nano titanium dioxide dispersion liquid, the paraffin emulsion and the polyurethane dispersion for 30min, and then carrying out ultrasonic treatment for 25min to obtain a finished product of the moisture-proof coating.
And (seventhly) the moisture-proof layer is made of modified ethylene-vinyl acetate copolymer with a honeycomb structure, and the thickness of the moisture-proof layer is 4 mm.
The preparation method of the ceramic tile-imitated wood floor comprises the following steps:
(1) providing a wood substrate;
(2) coating a moisture-proof coating on the back of the wood substrate, and curing to form a moisture-proof layer;
(3) bonding a sound insulation layer on the moisture-proof layer;
(4) coating a pore filling coating on the front surface of the wood substrate obtained in the step (3) to form a pore filling layer;
(5) coating a hydrophobic coating on the pore-filling layer to form a hydrophobic coating;
(6) coating ink absorption paint on the hydrophobic coating to form an ink absorption coating;
(7) ink-jet printing a decorative pattern on the surface of the ink-absorbing coating to form an ink-jet pattern layer;
(8) and coating the wear-resistant coating on the ink-jet pattern layer to form a wear-resistant coating, thus obtaining the finished product of the ceramic tile-imitated wood floor.
Example 4
The embodiment provides a imitative wooden floor of ceramic tile, and it includes wooden substrate, sets up at the positive pore-filling layer of wooden substrate, hydrophobic coating, blotter coating, ink jet pattern layer and wear-resisting coating, sets up dampproofing coating and the puigging at the wooden substrate back.
Wherein, the wood base material is formed by symmetrically distributing 7 layers of eucalyptus veneers, vertically and crisscross assembling the veneers in a crisscross way, and then hot pressing; arranging an adhesive between the adjacent eucalyptus veneers; the adhesive comprises the following components in parts by weight: 1.6 parts of active magnesium oxide, 7.8 parts of phenolic resin, 89.8 parts of MDI resin adhesive and 0.8 part of nano titanium dioxide;
the pore-filling layer is made of pore-filling paint; the pore-filling coating adopts putty with the coating amount of 100g/m2；
(III) wherein the hydrophobic coating is made of hydrophobic paint, and the coating amount of the hydrophobic paint is 120g/m2. The formula of the hydrophobic coating comprises:
Figure BDA0002893275920000141
wherein the modified polyurethane acrylate dispersion comprises the following components in parts by volume:
87 parts of a polyurethane acrylate dispersion;
4 parts of a silane coupling agent;
9 parts of inorganic nano powder dispersion liquid;
wherein, the silane coupling agent is trifluoropropyltrimethoxysilane; in the polyurethane acrylate dispersion, the polyurethane concentration was 25% by weight, the acrylate concentration was 13% by weight, the water content was 62% by weight, the solids content was 38% and the pH was 7.
The inorganic nano powder is a mixed solution of nano cerium oxide (content 25 wt%) and alcohol (60 vol%). And the nanometer cerium oxide is subjected to plasma fluorination treatment in advance, and the specific treatment is as follows: placing the nano cerium oxide on a quartz glass plate, and then placing the nano cerium oxide and the quartz glass plate together in the middle of an electrode of a Dielectric Barrier Discharge (DBD) plasma processing device; charging CF in a ratio of 1:104A mixed gas of/Ar; open etcAnd adjusting the voltage to 13kV and the frequency to 55kHZ by using a plasma generator, and carrying out fluorination treatment for 15 min.
The preparation method of the hydrophobic coating comprises the following steps:
(1) subjecting inorganic nano powder to plasma fluorination treatment, and then dispersing (40 ℃, stirring for 20min) into alcohol to obtain inorganic nano powder dispersion liquid;
(3) uniformly mixing inorganic nano powder dispersion liquid, polyurethane acrylate dispersion and a silane coupling agent to obtain modified polyurethane acrylate dispersion;
(4) and sequentially adding graphene oxide, azobenzene and polytetrafluoroethylene into the modified polyurethane acrylate dispersoid, stirring for 40min, and then performing ultrasonic treatment for 20min to obtain a finished hydrophobic coating.
The ink absorbing coating is made of ink absorbing paint, and the ink absorbing paint is made of ink absorbing paint of the type RvoeoXM-380 produced by Shanghai Bozhang chemical Limited; the coating weight was 90g/m2。
(V) wherein the wear-resistant coating is made of wear-resistant paint and the coating amount is 240g/m2(ii) a The wear-resistant paint is wear-resistant anti-cracking finish paint which is produced by three-tree paint company Limited and has the model of BMG0 XXG.
(VI) wherein the moisture-proof coating is made of moisture-proof paint and the coating amount is 120g/m2(ii) a The moisture-proof coating comprises the following components in parts by volume:
Figure BDA0002893275920000151
411584 parts of a binder;
8 parts of paraffin emulsion;
8 parts of nano titanium dioxide dispersion liquid;
wherein the particle size of the paraffin emulsion is 3-5 μm, and the solid content is 45-50%.
In the nano titanium dioxide dispersion liquid, the nano titanium dioxide accounts for 14 wt%; the dispersion comprises the following components in parts by volume:
5 parts of n-octyl triethoxysilane;
5 parts of water;
90 parts of absolute ethyl alcohol;
the preparation method of the moisture-proof coating comprises the following steps:
(1) dispersing nano titanium dioxide into a mixed solution of polydimethylsiloxane, water and a solvent, and keeping the temperature of the mixed solution at 45 ℃ during dispersion to obtain a nano titanium dioxide dispersion liquid;
(2) stirring the nano titanium dioxide dispersion liquid, the paraffin emulsion and the polyurethane dispersion for 30min, and then carrying out ultrasonic treatment for 25min to obtain a finished product of the moisture-proof coating.
And (seventhly) the moisture-proof layer is made of modified ethylene-vinyl acetate copolymer with a honeycomb structure, and the thickness of the moisture-proof layer is 4 mm.
The preparation method of the ceramic tile-imitated wood floor is the same as that of example 3.
Example 5
The embodiment provides a imitative wooden floor of ceramic tile, and it includes wooden substrate, sets up at the positive pore-filling layer of wooden substrate, hydrophobic coating, blotter coating, ink jet pattern layer and wear-resisting coating, sets up dampproofing coating and the puigging at the wooden substrate back.
Wherein, the wood base material is formed by symmetrically distributing 7 layers of eucalyptus veneers, vertically and crisscross assembling the veneers in a crisscross way, and then hot pressing; arranging an adhesive between the adjacent eucalyptus veneers; the adhesive comprises the following components in parts by weight: 1.6 parts of active magnesium oxide, 7.8 parts of phenolic resin, 89.8 parts of MDI resin adhesive and 0.8 part of nano titanium dioxide;
the pore-filling layer is made of pore-filling paint; the pore-filling coating adopts putty with the coating amount of 100g/m2；
(III) wherein the hydrophobic coating is made of hydrophobic paint, and the coating amount of the hydrophobic paint is 120g/m2. The formula of the hydrophobic coating comprises:
Figure BDA0002893275920000161
wherein the modified polyurethane acrylate dispersion comprises the following components in parts by volume:
89 parts of a polyurethane acrylate dispersion;
5 parts of a silane coupling agent;
6 parts of inorganic nano powder dispersion liquid;
wherein, the silane coupling agent is trifluoropropyltrimethoxysilane; the polyurethane concentration was 25% by weight, the acrylate concentration was 13% by weight, the water content was 62% by weight, the solids content was 38% and the pH was 7.
The inorganic nano powder is a mixed solution of nano cerium oxide (content 25 wt%) and alcohol (60 vol%). And the nanometer cerium oxide is subjected to plasma fluorination treatment in advance, and the specific treatment is as follows: placing the nano cerium oxide on a quartz glass plate, and then placing the nano cerium oxide and the quartz glass plate together in the middle of an electrode of a Dielectric Barrier Discharge (DBD) plasma processing device; charging CF in a ratio of 1:104A mixed gas of/Ar; the plasma generator was turned on, the voltage was adjusted to 13kV, the frequency was 55kHZ, and the fluorination treatment was carried out for 15 min.
The preparation method of the hydrophobic coating comprises the following steps:
(1) subjecting inorganic nano powder to plasma fluorination treatment, and then dispersing (40 ℃, stirring for 20min) into alcohol to obtain inorganic nano powder dispersion liquid;
(3) uniformly mixing inorganic nano powder dispersion liquid, polyurethane acrylate dispersion and a silane coupling agent to obtain modified polyurethane acrylate dispersion;
(4) and sequentially adding graphene oxide, azobenzene and polytetrafluoroethylene into the modified polyurethane acrylate dispersoid, stirring for 40min, and then carrying out ultrasonic treatment for 20min to obtain a finished hydrophobic coating.
The ink absorbing coating is made of ink absorbing paint, and the ink absorbing paint is made of ink absorbing paint of the type RvoeoXM-380 produced by Shanghai Bozhang chemical Limited; the coating weight was 90g/m2。
(V) wherein the wear-resistant coating is made of wear-resistant paint and the coating amount is 240g/m2(ii) a The wear-resistant paint is wear-resistant anti-cracking finish paint which is produced by three-tree paint company Limited and has the model of BMG0 XXG.
(VI)) Wherein the moisture-proof coating is made of moisture-proof paint and the coating amount is 120g/m2(ii) a The moisture-proof coating comprises the following components in parts by volume:
Figure BDA0002893275920000171
411584 parts of a binder;
8 parts of paraffin emulsion;
8 parts of nano titanium dioxide dispersion liquid;
wherein the particle size of the paraffin emulsion is 3-5 μm, and the solid content is 45-50%.
In the nano titanium dioxide dispersion liquid, the nano titanium dioxide accounts for 14 wt%; the dispersion comprises the following components in parts by volume:
7 parts of n-octyl triethoxysilane;
3 parts of water;
90 parts of absolute ethyl alcohol;
the preparation method of the moisture-proof coating comprises the following steps:
(1) dispersing nano titanium dioxide into a mixed solution of polydimethylsiloxane, water and a solvent, and keeping the temperature of the mixed solution at 45 ℃ during dispersion to obtain a nano titanium dioxide dispersion liquid;
(2) stirring the nano titanium dioxide dispersion liquid, the paraffin emulsion and the polyurethane dispersion for 30min, and then carrying out ultrasonic treatment for 25min to obtain a finished product of the moisture-proof coating.
And (seventhly) the moisture-proof layer is made of modified ethylene-vinyl acetate copolymer with a honeycomb structure, and the thickness of the moisture-proof layer is 4 mm.
The preparation method of the ceramic tile-imitated wood floor is the same as that of example 3.
Example 6
The embodiment provides a imitative wooden floor of ceramic tile, and it includes wooden substrate, sets up at the positive pore-filling layer of wooden substrate, hydrophobic coating, blotter coating, ink jet pattern layer and wear-resisting coating, sets up dampproofing coating and the puigging at the wooden substrate back.
Wherein, the wood base material is formed by symmetrically distributing 7 layers of eucalyptus veneers, vertically and crisscross assembling the veneers in a crisscross way, and then hot pressing; arranging an adhesive between the adjacent eucalyptus veneers; the adhesive comprises the following components in parts by weight: 1.6 parts of active magnesium oxide, 7.8 parts of phenolic resin, 89.8 parts of MDI resin adhesive and 0.8 part of nano titanium dioxide;
the pore-filling layer is made of pore-filling paint; the pore-filling coating adopts putty with the coating amount of 110g/m2；
(III) wherein the hydrophobic coating is made of hydrophobic paint, and the coating amount of the hydrophobic paint is 130g/m2. The formula of the hydrophobic coating comprises:
Figure BDA0002893275920000181
wherein the modified polyurethane acrylate dispersion comprises the following components in parts by volume:
86 parts of a polyurethane acrylate dispersion;
5 parts of a silane coupling agent;
9 parts of inorganic nano powder dispersion liquid;
wherein, the silane coupling agent is trifluoropropyltrimethoxysilane, the concentration of the polyurethane is 25 weight percent, the concentration of the acrylic ester is 13 weight percent, the content of the water is 62 weight percent, the solid content is 38 percent, and the pH value is 7.
The inorganic nano powder is a mixed solution of nano cerium oxide (with the content of 30 wt%) and alcohol (with the content of 60 vol%). And the nanometer cerium oxide is subjected to plasma fluorination treatment in advance, and the specific treatment is as follows: placing the nano cerium oxide on a quartz glass plate, and then placing the nano cerium oxide and the quartz glass plate together in the middle of an electrode of a Dielectric Barrier Discharge (DBD) plasma processing device; charging CF in a ratio of 1:104A mixed gas of/Ar; the plasma generator was turned on, the voltage was adjusted to 15kV, the frequency was 55kHZ, and the fluorination treatment was carried out for 20 min.
The preparation method of the hydrophobic coating comprises the following steps:
(1) subjecting inorganic nano powder to plasma fluorination treatment, and then dispersing (40 ℃, stirring for 20min) into alcohol to obtain inorganic nano powder dispersion liquid;
(3) uniformly mixing inorganic nano powder dispersion liquid, polyurethane acrylate dispersion and a silane coupling agent to obtain modified polyurethane acrylate dispersion;
(4) and sequentially adding graphene oxide, azobenzene and polytetrafluoroethylene into the modified polyurethane acrylate dispersoid, stirring for 45min, and then carrying out ultrasonic treatment for 25min to obtain a finished product of the hydrophobic coating.
The ink absorbing coating is made of ink absorbing paint, and the ink absorbing paint is made of ink absorbing paint of the type RvoeoXM-380 produced by Shanghai Bozhang chemical Limited; the coating weight was 80g/m2。
Wherein the wear-resistant coating is made of wear-resistant paint and the coating amount is 250g/m2(ii) a The wear-resistant paint is wear-resistant anti-cracking finish paint which is produced by three-tree paint company Limited and has the model of BMG0 XXG.
(VI) wherein the moisture-proof coating is made of moisture-proof paint and the coating amount is 120g/m2(ii) a The moisture-proof coating comprises the following components in parts by volume:
Figure BDA0002893275920000191
411586 parts of a binder;
7 parts of paraffin emulsion;
7 parts of nano titanium dioxide dispersion liquid;
wherein the particle size of the paraffin emulsion is 3-5 μm, and the solid content is 45-50%.
In the nano titanium dioxide dispersion liquid, the nano titanium dioxide accounts for 12 wt%; the dispersion comprises the following components in parts by volume:
5 parts of n-octyl triethoxysilane;
4 parts of water;
91 parts of absolute ethyl alcohol;
the preparation method of the moisture-proof coating comprises the following steps:
(1) dispersing nano titanium dioxide into a mixed solution of polydimethylsiloxane, water and a solvent, and keeping the temperature of the mixed solution at 48 ℃ during dispersion to obtain a nano titanium dioxide dispersion liquid;
(2) stirring the nano titanium dioxide dispersion liquid, the paraffin emulsion and the polyurethane dispersion for 25min, and then carrying out ultrasonic treatment for 40min to obtain a finished product of the moisture-proof coating.
And (seventhly) the moisture-proof layer is made of modified ethylene-vinyl acetate copolymer with a honeycomb structure, and the thickness of the moisture-proof layer is 4 mm.
The preparation method of the ceramic tile-imitated wood floor is the same as that of example 3.
Example 7
The embodiment provides a imitative wooden floor of ceramic tile, and it includes wooden substrate, sets up at the positive pore-filling layer of wooden substrate, hydrophobic coating, blotter coating, ink jet pattern layer and wear-resisting coating, sets up dampproofing coating and the puigging at the wooden substrate back.
Wherein, the wood base material is formed by symmetrically distributing 7 layers of eucalyptus veneers, vertically and crisscross assembling the veneers in a crisscross way, and then hot pressing; arranging an adhesive between the adjacent eucalyptus veneers; the adhesive comprises the following components in parts by weight: 1.6 parts of active magnesium oxide, 7.8 parts of phenolic resin, 89.8 parts of MDI resin adhesive and 0.8 part of nano titanium dioxide;
the pore-filling layer is made of pore-filling paint; the pore-filling coating adopts putty with the coating amount of 100g/m2；
(III) wherein the hydrophobic coating is made of hydrophobic paint, and the coating amount of the hydrophobic paint is 130g/m2. The formula of the hydrophobic coating comprises:
Figure BDA0002893275920000201
wherein the modified polyurethane acrylate dispersion comprises the following components in parts by volume:
85.5 parts of polyurethane acrylate dispersion;
4.5 parts of a silane coupling agent;
10 parts of inorganic nano powder dispersion liquid;
wherein, the silane coupling agent is trifluoropropyltrimethoxysilane; the polyurethane concentration was 25% by weight, the acrylate concentration was 13% by weight, the water content was 62% by weight, the solids content was 38% and the pH was 7.
The inorganic nano powder is a mixed solution of nano cerium oxide (content of 35 wt%) and alcohol (60 vol%). And the nanometer cerium oxide is subjected to plasma fluorination treatment in advance, and the specific treatment is as follows: placing the nano cerium oxide on a quartz glass plate, and then placing the nano cerium oxide and the quartz glass plate together in the middle of an electrode of a Dielectric Barrier Discharge (DBD) plasma processing device; charging CF in a ratio of 1:104A mixed gas of/Ar; the plasma generator was turned on, the voltage was adjusted to 15kV, the frequency was 60kHZ, and the fluorination treatment was carried out for 25 min.
The preparation method of the hydrophobic coating comprises the following steps:
(1) subjecting inorganic nano powder to plasma fluorination treatment, and then dispersing (40 ℃, stirring for 20min) into alcohol to obtain inorganic nano powder dispersion liquid;
(3) uniformly mixing inorganic nano powder dispersion liquid, polyurethane acrylate dispersion and a silane coupling agent to obtain modified polyurethane acrylate dispersion;
(4) and sequentially adding graphene oxide, azobenzene and polytetrafluoroethylene into the modified polyurethane acrylate dispersoid, stirring for 55min, and then carrying out ultrasonic treatment for 25min to obtain a finished product of the hydrophobic coating.
The ink absorbing coating is made of ink absorbing paint, and the ink absorbing paint is made of ink absorbing paint of the type RvoeoXM-380 produced by Shanghai Bozhang chemical Limited; the coating weight was 95g/m2。
Wherein the wear-resistant coating is made of wear-resistant paint and the coating amount is 250g/m2(ii) a The wear-resistant paint is wear-resistant anti-cracking finish paint which is produced by three-tree paint company Limited and has the model of BMG0 XXG.
(VI) wherein the moisture-proof coating is made of moisture-proof paint and the coating amount is 120g/m2(ii) a The moisture-proof coating comprises the following components in parts by volume:
Figure BDA0002893275920000211
411587 parts of a binder;
6 parts of paraffin emulsion;
7 parts of nano titanium dioxide dispersion liquid;
wherein the particle size of the paraffin emulsion is 3-5 μm, and the solid content is 45-50%.
In the nano titanium dioxide dispersion liquid, the nano titanium dioxide accounts for 12 wt%; the dispersion comprises the following components in parts by volume:
3.5 parts of n-octyl triethoxysilane;
6.5 parts of water;
90 parts of absolute ethyl alcohol;
the preparation method of the moisture-proof coating comprises the following steps:
(1) dispersing nano titanium dioxide into a mixed solution of polydimethylsiloxane, water and a solvent, and keeping the temperature of the mixed solution at 48 ℃ during dispersion to obtain a nano titanium dioxide dispersion liquid;
(2) stirring the nano titanium dioxide dispersion liquid, the paraffin emulsion and the polyurethane dispersion for 25min, and then carrying out ultrasonic treatment for 40min to obtain a finished product of the moisture-proof coating.
And (seventhly) the moisture-proof layer is made of modified ethylene-vinyl acetate copolymer with a honeycomb structure, and the thickness of the moisture-proof layer is 4 mm.
The preparation method of the ceramic tile-imitated wood floor is the same as that of example 3.
Comparative example 1
This comparative example provides a tile-like wood-based board which differs from example 5 in the formulation of the hydrophobic coating as follows:
Figure BDA0002893275920000221
the rest of the process was the same as in example 5.
Comparative example 2
This comparative example provides a tile-like wood-based panel which differs from example 5 in the formulation of the modified urethane acrylate dispersion, specifically, the modified urethane acrylate dispersion comprises the following components in parts by volume:
82 parts of a polyurethane acrylate dispersion;
2 parts of a silane coupling agent;
16 parts of inorganic nano powder dispersion liquid;
the rest is the same as example 5.
Performing performance tests on the moisture-proof coatings in the embodiments 1 to 7; specifically, tests were performed on wood substrates coated only with moisture resistant coatings; the test method comprises the following steps:
taking the surface area as 100cm2The imitated ceramic tile wooden floor is prepared by mixing filter paper (surface area 100 cm)2) Placing the ceramic tile-imitated wood board on the surface after completely soaking, covering the filter paper with a toughened glass cover, and measuring the size change condition of the ceramic tile-imitated wood board after placing for 24 hours, 7 days and 28 days;
the specific results are as follows:
Figure BDA0002893275920000222
for the tile-like wood-based panels (100 cm) obtained in examples 2 to 7 and comparative examples 1 to 22) The positive performance of (2) was tested. The specific test method is as follows:
(1) the gloss was measured according to the method of GB/T4893.6-2013, the adhesion was measured according to the method of GB/T4893.4-2013, the hardness was measured according to the method of GB/T6739-2006, the impact resistance was measured according to the method of GB/T1732-1993, and the abrasion resistance was measured according to the method of GB/T4893.8-2013.
(2) The volume resistivity of the surface of the wood substrate (the interface modification layer, the pattern layer and the wear-resistant coating) is measured according to the method of GB/T1410-2006.
(3) Taking the surface area as 100cm2The imitated ceramic tile wooden floor is prepared by mixing filter paper (surface area 100 cm)2) Placing the ceramic tile-imitated wood board on the surface after completely soaking, covering the filter paper with a toughened glass cover, and measuring the size change condition of the ceramic tile-imitated wood board after placing for 24 hours, 7 days and 28 days;
(4) the coated plywood was printed with an ink jet printer at 8000dpi, 9600dpi, and 12000dpi, respectively, and the surface condition was observed after printing.
(5) And printing with a resolution of 9600dpi, gradually increasing the printing speed, and judging the maximum printing speed on the basis of the definition of a visual image.
The specific test results are given in the following table:
Figure BDA0002893275920000231
as can be seen from the table, the interface modification layer of the ceramic tile-imitated wood floor can effectively ensure the dimensional stability of the wood floor and provide a good foundation for ink-jet printing, the ink-jet printing precision of the ceramic tile-imitated wood floor can reach more than 9600dpi, and the printing speed can reach more than 32 m/min.
As can be seen from the comparison between comparative example 1, comparative example 2 and example 5, the proportion of each component in the hydrophobic coating of the present invention is changed so that the components are not within the protection scope of the present invention, and the technical effects similar to the present invention can not be realized.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention, and it is therefore to be understood that the invention is not limited by the scope of the appended claims.

Claims (10)

1. The ceramic tile-imitated wood floor is characterized by comprising a wood base material, wherein an ink-jet pattern layer is arranged on the front surface of the wood base material, and a moisture-proof layer is arranged on the back surface of the wood base material;
the moisture-proof layer is prepared from a moisture-proof coating, and the moisture-proof coating comprises the following components in parts by volume:
80-93 parts of a polyurethane dispersion;
4-10 parts of paraffin emulsion;
3-10 parts of nano titanium dioxide dispersion liquid;
the nano titanium dioxide dispersion liquid is obtained by dispersing nano titanium dioxide into a dispersion system, wherein the mass fraction of the nano titanium dioxide is 10-15%, and the dispersion system comprises the following components in parts by volume:
3-7 parts of organosilane;
2-5 parts of water;
90-95 parts of a solvent;
the solvent is one or more of methanol, ethanol and acetone.
2. The tile-like wood floor according to claim 1, wherein a sound insulation layer is further provided on the moisture-proof layer, wherein the sound insulation layer has a honeycomb structure and a thickness of 3-5 mm;
the organosilane is polydimethylsiloxane and/or n-octyltriethoxysilane.
3. The tile-like wood floor according to claim 1, wherein a pore-filling layer and a hydrophobic coating layer are sequentially disposed between the wood substrate and the inkjet pattern layer;
the pore filling layer is made of pore filling paint, and the pore filling paint is one or more of putty, epoxy resin cement and polyester resin cement.
4. The tile-simulated wood floor as claimed in claim 3, wherein the hydrophobic coating is made of a hydrophobic paint, the hydrophobic paint is mainly made of the following raw materials in parts by weight:
Figure FDA0002893275910000011
wherein the modified polyurethane acrylate dispersion comprises the following components in parts by volume:
85-90 parts of a polyurethane acrylate dispersion;
3-5 parts of a silane coupling agent;
5-10 parts of inorganic nano powder dispersion liquid;
wherein the inorganic nano powder dispersion liquid is a mixed solution of inorganic nano powder and the dispersion liquid;
the inorganic nano powder is one or more of nano cerium oxide powder, nano titanium oxide powder, nano silicon oxide powder and nano tin oxide powder.
5. The tile-like wood floor according to claim 4, wherein the inorganic nanopowder is first fluorinated by plasma and then re-dispersed in the dispersion to obtain an inorganic nanopowder solution;
in the inorganic nano powder dispersion liquid, the mass fraction of inorganic nano powder is 22-40%; the dispersion liquid is water and/or alcohol;
the plasma fluorination treatment comprises: placing inorganic nano powder in dielectric barrier discharge plasma equipment, and carrying out plasma fluorination treatment on the inorganic nano powder by taking carbon tetrafluoride and argon as reaction gases; wherein the treatment voltage is 13-18 kV, the treatment frequency is 55-65 kHz, and the treatment time is 10-30 min;
wherein the volume ratio of the carbon tetrafluoride to the argon is 1 (8-12).
6. The tile-like wood floor according to claim 4, wherein the inorganic nano-powder is selected from nano-cerium oxide powder or nano-tin oxide powder, and the dispersion is an ethanol aqueous solution with a volume fraction of 55-65%;
in the polyurethane acrylate dispersion, the concentration of polyurethane is 23-28 wt%, the concentration of acrylate is 11-15 wt%, the content of water is 60-65 wt%, the solid content is 37-40%, and the pH value is 6-8.
7. The tile-simulated wood floor of claim 4, wherein an ink-receptive coating is disposed between the hydrophobic coating and the ink-jet patterned layer, and the ink-jet patterned layer has a wear-resistant coating disposed thereon.
8. The tile-like wood floor of claim 4, wherein the hydrophobic coating is prepared by:
(1) uniformly mixing 5-10 parts by volume of inorganic nano powder dispersion liquid, 85-90 parts by volume of polyurethane acrylate dispersion liquid and 3-5 parts by volume of silane coupling agent to obtain modified polyurethane acrylate dispersion liquid;
(2) 0.6-3.5 parts by weight of graphene oxide, 0.5-1 part by weight of azobenzene and 4-10 parts by weight of polytetrafluoroethylene are sequentially added into 86-94 parts by weight of the modified polyurethane acrylate dispersoid, the mixture is stirred and reacted for 40-60 min at the temperature of 60-65 ℃, and then ultrasonic treatment is carried out for 20-40 min, so that a finished product of the hydrophobic coating is obtained.
9. A method of producing a tile-like wood texture panel as set forth in any one of claims 1 to 8, comprising:
(1) providing a wood substrate;
(2) coating a moisture-proof coating on the back of the wood substrate, and curing to form a moisture-proof layer;
(3) and (3) printing a decorative pattern on the front surface of the wood base material obtained in the step (2) to form an ink-jet pattern layer, thus obtaining the finished product of the ceramic tile-imitated wood bottom plate.
10. The method of making a simulated ceramic tile wood floor of claim 9, wherein step (2) comprises:
(2.1) coating a moisture-proof coating on the back surface of the wood substrate, and curing to form a moisture-proof layer;
(2.2) adhering a sound insulation layer on the moisture-proof layer;
the step (3) comprises the following steps:
(3.1) coating a pore filling coating on the front surface of the wood substrate obtained in the step (2.2) to form a pore filling layer;
(3.2) coating a hydrophobic coating on the pore-filling layer to form a hydrophobic coating;
(3.3) coating an ink-absorbing coating on the hydrophobic coating to form an ink-absorbing coating;
(3.4) carrying out ink-jet printing on a decorative pattern on the surface of the ink-absorbing layer to form an ink-jet pattern layer;
and (3.5) coating the wear-resistant coating on the ink-jet pattern layer to form a wear-resistant coating, thus obtaining the finished product of the ceramic tile-imitated wood floor.
CN202110036181.3A 2021-01-12 2021-01-12 Ceramic tile-imitated wood floor and preparation method thereof Pending CN112778896A (en)

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