CN114517035A - Water-based plant-based varnish, preparation method thereof and woodware - Google Patents

Water-based plant-based varnish, preparation method thereof and woodware Download PDF

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CN114517035A
CN114517035A CN202111634319.6A CN202111634319A CN114517035A CN 114517035 A CN114517035 A CN 114517035A CN 202111634319 A CN202111634319 A CN 202111634319A CN 114517035 A CN114517035 A CN 114517035A
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water
plant
parts
curing
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CN114517035B (en
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吕奇洪
杨亮庆
佘学彬
欧阳倩雯
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Guangdong Bozhou Jiasen Technology Co ltd
Guangdong Nature Home Technology Research Co ltd
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Guangdong Bozhou Jiasen Technology Co ltd
Guangdong Nature Home Technology Research Co ltd
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    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D133/00Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D7/00Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/20Diluents or solvents
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D7/00Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40Additives
    • C09D7/60Additives non-macromolecular
    • C09D7/61Additives non-macromolecular inorganic
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D7/00Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40Additives
    • C09D7/60Additives non-macromolecular
    • C09D7/63Additives non-macromolecular organic
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/18Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20Oxides; Hydroxides
    • C08K3/22Oxides; Hydroxides of metals
    • C08K2003/2227Oxides; Hydroxides of metals of aluminium
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

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

Abstract

The invention discloses a water-based plant-based varnish, which comprises a matrix component and a curing component; the matrix component comprises the following components in parts by weight: 20-60 parts of water-based plant-based hydroxyl acrylic emulsion; 20-60 parts of modified water-based plant-based self-crosslinking acrylic emulsion; 0.2-1.5 parts of a defoaming agent; 0.2-0.5 part of wetting agent; 0-0.3 part of a leveling agent; 0.1-0.3 part of a dispersing agent; 1-3 parts of a wax dispersion; 0-10 parts of a film forming auxiliary agent; 0.3-1 part of a thickening agent; 1-3 parts of matting powder; 3-10 parts of water; the curing component comprises the following components in parts by weight: 80-95 parts of a curing agent; 5-10 parts of a solvent. The invention also discloses a preparation method of the water-based plant-based varnish and a woodware. By implementing the invention, the water-based plant-based top-coat paint with high stain resistance and high hardness can be obtained.

Description

Water-based plant-based varnish, preparation method thereof and woodware
Technical Field
The invention belongs to the technical field of wood paints, and particularly relates to a water-based plant-based varnish, a preparation method thereof and a wood.
Background
Plant-based coatings are a new, green, low Voc emission coating and are a new development in the coatings field. However, the existing water-based plant-based paint is not mature, has the defects of difficult defoaming, easy shrinkage, poor surface effect, poor pollution resistance, soft hardness and the like, and limits the popularization and application of the paint.
Disclosure of Invention
The invention aims to provide the water-based plant-based clear finish paint which has good surface effect, higher hardness and excellent stain resistance.
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 problems, the invention discloses a water-based plant-based top-coat paint which comprises a matrix component and a curing component; the weight ratio of the matrix component to the curing component is (8-15) to 1;
the matrix component comprises the following components in parts by weight:
Figure BDA0003441329940000011
the curing component comprises the following components in parts by weight:
80-95 parts of a curing agent;
5-10 parts of a solvent.
The water-based plant-based top-coat paint based on the components adopts water as a cosolvent, and the VOC emission is low. And the water-based plant-based hydroxyl acrylic emulsion and the modified water-based plant-based self-crosslinking acrylic emulsion are matched and cured to obtain the finish paint with good stain resistance and high hardness.
As an improvement of the technical scheme, the modified water-based plant-based self-crosslinking acrylic emulsion is mainly prepared from the following raw materials in parts by weight:
Figure BDA0003441329940000021
based on the scheme, the water-based plant-based self-crosslinking acrylic emulsion, the silane coupling agent and the wear-resistant auxiliary agent are compounded, so that the hardness, the surface scratch resistance and the stain resistance of a paint film can be effectively improved, and the problem of performance weakening caused by directly introducing plant-based components is solved.
As an improvement of the technical scheme, the preparation method of the modified water-based plant-based self-crosslinking acrylic emulsion comprises the following steps:
uniformly mixing the water-based plant-based self-crosslinking acrylic emulsion, a pH regulator, a defoaming agent B and a dispersing agent B to obtain a first mixed solution;
and (3) uniformly mixing a silane coupling agent, a wear-resistant auxiliary agent and the first mixed solution, and curing for 20-24 hours to obtain the modified water-based plant-based self-crosslinking acrylic emulsion.
As an improvement of the technical scheme, the defoaming agent A is an organic silicon defoaming agent and/or an organic gemini surfactant; specifically, the silicone antifoaming agent may be, for example, BYK-024, but is not limited thereto. The organic gemini surfactant can be selected from the Woundplast AD01, but is not limited to the Woundplast AD01, is suitable for an aqueous formula, has both dynamic wetting and molecular defoaming performances, and is good in compatibility.
The wetting agent is siloxane gemini surfactant; it can realize substrate wetting, prevent shrinkage cavity, and promote flowing and defoaming. Specifically, the inventive TEGO Twin4100 can be used, but not limited thereto
The leveling agent is an organic silicon leveling agent, so that the surface tension can be reduced, shrinkage cavities can be prevented, and the scratch resistance of a coating film can be improved. Specifically, the leveling agent can be selected from the winning TEGO Glide496, but is not limited thereto.
The dispersant A is a high molecular weight block copolymer solution containing pigment affinity groups; the powder deflocculating agent can deflocculate powder through electrostatic stabilization, has hydrophobicity, and can improve the stain resistance and corrosion resistance of the coating. Specifically, BYK-190 is selected as the dispersant A, but the dispersant A is not limited to the BYK-190.
The wax dispersoid is a polytetrafluoroethylene micronized wax water-washing dispersoid; the method is favorable for improving the smoothness of the surface of the paint film and improving the stain resistance. The specific dispersion may be, but is not limited to, Tianshi PTFE-1005.
The film-forming assistant is dipropylene glycol methyl ether and/or dipropylene glycol butyl ether;
the thickener is a nonionic associative thickener which has the advantages of sag resistance, good fluidity, good leveling property and high glossiness. Specifically, the thickener may be selected from, but not limited to, french hight XS 71.
The matting powder is silicon dioxide (namely fumed silica) subjected to organic treatment. Specifically, Grace 7000 can be used as matting powder.
As an improvement of the technical scheme, the curing agent is a water-based plant-based PDI curing agent, and the curing agent is a Bayhydur eco curing agent of Coltsfoot. The solvent is propylene glycol diacetate.
As an improvement of the technical scheme, the pH regulator is 2-amino-2-methyl-1-propanol;
the dispersant B is a high molecular weight block copolymer solution containing pigment affinity groups;
the defoaming agent B is an organic silicon defoaming agent;
the silane coupling agent is epoxy silane oligomer;
the wear-resistant auxiliary agent is alumina ceramic.
As an improvement of the technical scheme, the film-forming assistant is dipropylene glycol methyl ether and dipropylene glycol butyl ether;
the defoaming agent A is an organic silicon defoaming agent and an organic gemini surfactant.
Correspondingly, the invention also discloses a preparation method of the water-based plant-based top-coat paint, which comprises the following steps:
(1) preparing modified water-based plant-based self-crosslinking acrylic emulsion;
(2) mixing the water-based plant-based hydroxyl acrylic emulsion, the modified water-based self-crosslinking acrylic emulsion, a defoaming agent A, a wetting agent and a dispersing agent A to obtain a pre-dispersing solution;
(3) uniformly mixing the pre-dispersion liquid, the flatting agent, the wax dispersion, the film-forming aid, the thickening agent, the matting agent and water, and dispersing and filtering to obtain a matrix component;
(4) uniformly mixing a curing agent and a solvent to obtain a curing component; and respectively packaging the matrix component and the curing component to obtain a finished product of the water-based plant-based clear finish.
As an improvement of the technical scheme, the step (1) comprises the following steps:
(1.1) uniformly mixing the water-based plant-based self-crosslinking acrylic emulsion, a pH regulator, a defoaming agent B and a dispersing agent B to obtain a first mixed solution;
and (1.2) uniformly mixing a silane coupling agent and a wear-resistant auxiliary agent with the first mixed solution, and curing for 20-24 hours to obtain the modified water-based plant-based self-crosslinking acrylic emulsion.
Correspondingly, the invention also discloses a woodware, wherein the surface of the woodware is partially or completely coated with the water-based plant-based varnish.
The implementation of the invention has the following beneficial effects:
1. the water-based double-component plant-based top-coat paint provided by the embodiment of the invention adopts water as a solvent, the emission of Volatile Organic Compounds (VOC) in the system is extremely low, no pungent smell exists, and the water-based double-component plant-based top-coat paint is nonflammable, safe and stable, good in environmental protection performance, and good in hardness and stain resistance.
2. According to the embodiment of the invention, the water-based plant-based hydroxyl acrylic emulsion and the modified water-based plant-based self-crosslinking acrylic emulsion are adopted, and are crosslinked and cured with the water-based plant-based PDI curing agent to obtain a paint film with excellent performance and high plant-based content.
3. According to the embodiment of the invention, the modified water-based plant-based self-crosslinking acrylic emulsion is used as an independently developed intermediate, and the water-based plant-based self-crosslinking acrylic emulsion, the silane coupling agent and the wear-resistant additive are cured to obtain excellent paint film performance, so that the physicochemical property, the surface scratch resistance and the hardness of the paint film are improved.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are 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.
In the following examples, the types of the substances are as follows, but are not limited to these materials:
aqueous vegetable-based hydroxyacrylic acid emulsion: dianrui SP 7400;
aqueous self-crosslinking acrylic emulsion: dianrui SP 7450;
a first defoaming agent: BYK-024;
a second defoaming agent: winning wound AD 01;
wetting agent: winning TEGO Twin 4100;
leveling agent: winning TEGO Glide 496;
dispersing agent: BYK-190;
wax dispersion: tianshi PTFE-1005;
dipropylene glycol methyl ether, dipropylene glycol butyl ether: is commercially available.
Thickening agent: french hight XS 71;
matting powder: graes 7000;
curing agent: scientific wound Bayhydur eco;
propylene glycol diacetate: is sold on the market;
silane coupling agent: mP200 as a map
Alumina ceramics: pico nano AS06
Example 1
This example provides an aqueous plant-based top coat comprising a base component and a curing component. The formula of the matrix component is as follows:
Figure BDA0003441329940000051
the formula of the modified water-based plant-based self-crosslinking acrylic emulsion comprises the following components:
Figure BDA0003441329940000052
Figure BDA0003441329940000061
the formulation of the curing component was as follows:
85 parts of a curing agent;
15 parts of propylene glycol diacetate;
the preparation method of the aqueous plant-based clear top coat in the embodiment comprises the following steps:
(1) stirring the aqueous self-crosslinking acrylic emulsion, a pH regulator, a first defoaming agent and a dispersing agent at the stirring speed of 800rpm for 8 minutes, adding alumina ceramic powder and a silane coupling agent at the stirring speed of 1300rpm, stirring for 10 minutes, and then standing for 24 hours for curing to obtain the modified aqueous plant-based self-crosslinking acrylic emulsion;
(2) placing the modified water-based plant-based self-crosslinking acrylic emulsion and the water-based plant-based hydroxyl acrylic emulsion in a dispersion cylinder, starting a dispersion stirrer, adjusting the rotating speed to 1200r/min, then adding a first defoaming agent, a second defoaming agent, a wetting agent and a dispersing agent, stirring for pre-dispersion for 5min, then adding matting powder, increasing the rotating speed to 1500r/min, and dispersing at a high speed for 20 min. Testing the particle size of the mixed solution by using a scraper fineness meter, reducing the rotating speed to 1000r/min after the fineness is less than 15 mu m, adding the mixed solution of dipropylene glycol methyl ether, dipropylene glycol butyl ether, a thickening agent and water (the four are mixed in advance), keeping the rotating speed for dispersing for 10min, sequentially adding a leveling agent and a wax dispersion, keeping the rotating speed for dispersing for 5min, and then slowly reducing the rotating speed to stop the machine; filtering the dispersion with 200 mesh filter screen to obtain matrix component.
(3) Uniformly mixing a curing agent and a solvent to obtain a curing component; and respectively packaging the matrix component and the curing component to obtain the composite material.
Example 2
The present example provides an aqueous plant-based top coat that includes a base component and a curing component.
The formula of the matrix component is as follows:
Figure BDA0003441329940000062
Figure BDA0003441329940000071
the formula of the modified water-based plant-based self-crosslinking acrylic emulsion comprises the following components:
Figure BDA0003441329940000072
the formulation of the curing component was as follows:
80 parts of a curing agent;
20 parts of propylene glycol diacetate;
the preparation method of the aqueous plant-based clear top coat in the embodiment comprises the following steps:
(1) stirring the aqueous self-crosslinking acrylic emulsion, a pH regulator, a first defoaming agent and a dispersing agent at the stirring speed of 1000rpm for 5 minutes, adding alumina ceramic powder and a silane coupling agent at the stirring speed of 1300rpm, stirring for 10 minutes, and then standing for 24 hours for curing to obtain the modified aqueous plant-based self-crosslinking acrylic emulsion;
(2) placing the modified water-based plant-based self-crosslinking acrylic emulsion and the water-based plant-based hydroxyl acrylic emulsion in a dispersion cylinder, starting a dispersion stirrer, adjusting the rotating speed to 1200r/min, then adding a first defoaming agent, a second defoaming agent, a wetting agent and a dispersing agent, stirring for pre-dispersion for 5min, then adding matting powder, increasing the rotating speed to 1500r/min, and dispersing at a high speed for 20 min. Testing the particle size of the mixed solution by using a scraper fineness tester, reducing the rotating speed to 1000r/min after the fineness is less than 15 mu m, adding the mixed solution of dipropylene glycol methyl ether, dipropylene glycol butyl ether, a thickening agent and water (the four are mixed in advance), keeping the rotating speed for dispersing for 10min, sequentially adding a flatting agent and a wax dispersion, keeping the rotating speed for dispersing for 5min, and then slowly reducing the rotating speed to stop the machine; filtering the dispersion with 200 mesh filter screen to obtain matrix component.
(3) Uniformly mixing a curing agent and a solvent to obtain a curing component; and respectively packaging the matrix component and the curing component to obtain the composite material.
Example 3
This example provides an aqueous plant-based top coat comprising a base component and a curing component.
The formula of the matrix component is as follows:
Figure BDA0003441329940000081
the formula of the modified water-based plant-based self-crosslinking acrylic emulsion comprises the following components:
Figure BDA0003441329940000082
the formulation of the curing component was as follows:
85 parts of a curing agent;
15 parts of propylene glycol diacetate;
the preparation method is the same as that of example 2.
Example 4
The present example provides an aqueous plant-based top coat that includes a base component and a curing component.
The formula of the matrix component is as follows:
Figure BDA0003441329940000091
the formula of the modified water-based plant-based self-crosslinking acrylic emulsion comprises the following components:
Figure BDA0003441329940000092
the formulation of the curing component was as follows:
90 parts of a curing agent;
10 parts of propylene glycol diacetate;
the preparation method is the same as that of example 1.
Comparative example 1
The present comparative example provides an aqueous plant-based top coat comprising a base component and a curing component.
The formula of the matrix component is as follows:
Figure BDA0003441329940000101
the formula of the modified water-based plant-based self-crosslinking acrylic emulsion comprises the following components:
Figure BDA0003441329940000102
the formulation of the curing component was as follows:
90 parts of a curing agent;
10 parts of propylene glycol diacetate;
the aqueous plant-based top coat of this comparative example was prepared in the same manner as in example 1.
Comparative example 2
The present comparative example provides an aqueous plant-based top coat comprising a base component and a curing component.
The formula of the matrix component is as follows:
Figure BDA0003441329940000103
Figure BDA0003441329940000111
the formula of the modified water-based plant-based self-crosslinking acrylic emulsion comprises the following components:
Figure BDA0003441329940000112
the formulation of the curing component was as follows:
85 parts of a curing agent;
15 parts of propylene glycol diacetate;
the aqueous plant-based top coat of this comparative example was prepared in the same manner as in example 1.
Comparative example 3
This comparative example provides an aqueous plant-based clear top coat that differs from example 1 in that the aqueous plant-based self-crosslinking acrylic emulsion was not modified.
Figure BDA0003441329940000113
Figure BDA0003441329940000121
The formulation of the curing component was as follows:
85 parts of a curing agent;
15 parts of propylene glycol diacetate;
comparative example 4
The comparative example provides a commercially available two-component clear top coat (the specific model is shown in the specification) Huarun WT 89903-20.
The clear finishing coats in the embodiments 1-4 and the comparative examples 1-4 of the invention are detected, and specifically, the clear finishing coats comprise the following components in percentage by weight: curing components: the paint is prepared from 100:10:10 water, and then the paint film performance detection is carried out according to the standard of B class in GB/T23999-. Specific test data are shown in the following table;
Figure BDA0003441329940000122
as can be seen from the above table, all performance indexes of the water-based plant-based clear finishing coat in the invention all reach the standard of class B in GB/T23999-2009. And the performance of the clear finish in some embodiments is comparable to that of the water-based double-component products sold in the market, and the construction performance is excellent. Thereby having the potential to replace commercially available aqueous two-component products.
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 water-based plant-based varnish is characterized by comprising a matrix component and a curing component; the weight ratio of the matrix component to the curing component is (8-15) to 1;
the matrix component comprises the following components in parts by weight:
Figure FDA0003441329930000011
the curing component comprises the following components in parts by weight:
80-95 parts of a curing agent;
5-10 parts of a solvent.
2. The water-based plant-based varnish according to claim 1, wherein the modified water-based plant-based self-crosslinking acrylic emulsion is mainly prepared from the following raw materials in parts by weight:
Figure FDA0003441329930000012
3. the aqueous plant-based top-coat paint of claim 2, wherein the modified aqueous plant-based self-crosslinking acrylic emulsion is prepared by the method comprising:
uniformly mixing the water-based plant-based self-crosslinking acrylic emulsion, a pH regulator, a defoaming agent B and a dispersing agent B to obtain a first mixed solution;
and (3) uniformly mixing a silane coupling agent, a wear-resistant auxiliary agent and the first mixed solution, and curing for 20-24 hours to obtain the modified water-based plant-based self-crosslinking acrylic emulsion.
4. The water-based plant-based varnish according to claim 1, wherein the defoamer a is selected from silicone defoamers and/or organic gemini surfactants;
the wetting agent is siloxane gemini surfactant;
the leveling agent is an organic silicon leveling agent;
the dispersant A is a high molecular weight block copolymer solution containing pigment affinity groups;
the wax dispersoid is a polytetrafluoroethylene micronized wax water-washing dispersoid;
the film-forming assistant is dipropylene glycol methyl ether and/or dipropylene glycol butyl ether;
the thickening agent is a nonionic associative thickening agent;
the matting powder is organic treated silicon dioxide.
5. The water-based plant-based varnish as claimed in claim 1 or 4, wherein the curing agent is a water-based plant-based PDI curing agent, and the solvent is propylene glycol diacetate.
6. The aqueous plant-based top-coat paint of claim 2, wherein the pH adjuster is selected from the group consisting of 2-amino-2-methyl-1-propanol;
the dispersant B is a high molecular weight block copolymer solution containing pigment affinity groups;
the defoaming agent B is an organic silicon defoaming agent;
the silane coupling agent is epoxy silane oligomer;
the wear-resistant auxiliary agent is alumina ceramic.
7. The aqueous plant-based top coat of claim 4, wherein the coalescent is selected from the group consisting of dipropylene glycol methyl ether and dipropylene glycol butyl ether;
the defoaming agent A is selected from an organic silicon defoaming agent and an organic gemini surfactant.
8. A method of preparing an aqueous plant-based top-coat paint as claimed in any one of claims 1 to 7, comprising:
(1) preparing modified water-based plant-based self-crosslinking acrylic emulsion;
(2) mixing the water-based plant-based hydroxyl acrylic emulsion, the modified water-based self-crosslinking acrylic emulsion, a defoaming agent A, a wetting agent and a dispersing agent A to obtain a pre-dispersing solution;
(3) uniformly mixing the pre-dispersion liquid, the flatting agent, the wax dispersion, the film-forming aid, the thickening agent, the matting agent and water, and dispersing and filtering to obtain a matrix component;
(4) uniformly mixing a curing agent and a solvent to obtain a curing component; and respectively packaging the matrix component and the curing component to obtain a finished product of the water-based plant-based clear finish.
9. The method of claim 8, wherein step (1) comprises:
(1.1) uniformly mixing the water-based plant-based self-crosslinking acrylic emulsion, a pH regulator, a defoaming agent B and a dispersing agent B to obtain a first mixed solution;
and (1.2) uniformly mixing a silane coupling agent and a wear-resistant auxiliary agent with the first mixed solution, and curing for 20-24 hours to obtain the modified water-based plant-based self-crosslinking acrylic emulsion.
10. A wooden article characterized in that the surface of the wooden article is partially or completely coated with the water-based plant-based varnish according to any one of claims 1 to 7.
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Cited By (2)

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Publication number Priority date Publication date Assignee Title
CN115785784A (en) * 2022-12-09 2023-03-14 广东巴德士新材料有限公司 Waterborne two-component finishing coat with high biobased content for woodware and preparation method thereof
CN116285648A (en) * 2023-03-14 2023-06-23 苏州市贝特利高分子材料股份有限公司 High-wear-resistance water-based matte UV varnish and preparation method thereof

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