CN108264832B - Water-based bi-component inorganic modified durable wood paint and preparation method and use method thereof - Google Patents

Water-based bi-component inorganic modified durable wood paint and preparation method and use method thereof Download PDF

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CN108264832B
CN108264832B CN201810086457.7A CN201810086457A CN108264832B CN 108264832 B CN108264832 B CN 108264832B CN 201810086457 A CN201810086457 A CN 201810086457A CN 108264832 B CN108264832 B CN 108264832B
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aqueous
inorganic modified
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CN108264832A (en
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吴勇
胡基如
王红梅
徐新祥
付超
姚自栋
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SHENZHEN GUANGTIAN HIGH-TECH NEW MATERIALS Co.,Ltd.
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SHENZHEN GUANGTIAN HIGH-TECH NEW MATERIALS 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/24—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/18—Fireproof paints including high temperature resistant paints
    • C—CHEMISTRY; METALLURGY
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/08—Stabilised against heat, light or radiation or oxydation
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Paints Or Removers (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

The invention discloses a water-based double-component inorganic modified durable wood lacquer, a preparation method and a use method thereof, wherein the water-based double-component inorganic modified durable wood lacquer is prepared by mixing the following components in parts by weight: the component A comprises: 60-80 parts of high-hydroxyl acrylic acid dispersoid, 8-12 parts of nano silica sol, 0.2-1 part of methyltriethoxysilane, 0.5-2 parts of silicon dioxide aerogel, 0.1-0.2 part of defoaming agent, 0.1-0.2 part of flatting agent, 0.1-0.5 part of pH regulator, 3-5 parts of film-forming additive, 0.3-1 part of wetting agent, 0.2-1 part of thickening agent, 0.2-0.8 part of dispersing agent and 5-15 parts of deionized water; the component B comprises: 65-70 parts of hydrophilic polyisocyanate curing agent and 30-35 parts of dipropylene glycol dimethyl ether, wherein the component A comprises the following components in parts by weight: the component B comprises: 100 parts of water: 15: 10-20 and mixing uniformly. The wood lacquer is environment-friendly and safe, and the obtained lacquer film has good heat resistance and good anti-ironing property.

Description

Water-based bi-component inorganic modified durable wood paint and preparation method and use method thereof
Technical Field
The invention relates to the field of paint, in particular to aqueous bi-component inorganic modified ironing-resistant wood paint capable of being used on the surfaces of office furniture, a preparation method and a use method thereof.
Background
The wood lacquer on the surface of office furniture must have good boiling water resistance and smoke end scalding resistance, and the wood lacquer on the surface of the office furniture commonly used at present is an oily system room temperature drying type coating which has good comprehensive performance, but has poor boiling water resistance and smoke end scalding resistance. Meanwhile, the oily wood lacquer is seriously polluted, is not environment-friendly, has limited development and is gradually replaced by the water-based wood lacquer, and the water-based wood lacquer for office furniture in the prior art cannot be used for high-grade office furniture because the water-based wood lacquer has poor boiling water resistance and poor smoke end burning resistance and does not meet the use requirement.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide the water-based wood paint which is heat-resistant, scalding-resistant, environment-friendly and can be used for coating the surfaces of high-grade office furniture. The comprehensive performance of the obtained paint film meets the requirements of office furniture, and the heat resistance and the heat-resistant performance are greatly improved.
In order to solve the technical problems, the invention adopts the following technical scheme:
the aqueous bi-component inorganic modified heat-ironing wood lacquer is prepared by mixing the following components in parts by weight:
the component A comprises:
Figure GDA0002965247950000021
component B
65-70 parts of hydrophilic polyisocyanate curing agent
30-35 parts of dipropylene glycol dimethyl ether
Wherein, according to the component A: the component B comprises: 100 parts of water: 15: 10-20 and mixing uniformly.
Preferably, the high-hydroxyl acrylic acid dispersion is NeoCryl XK-110 from Disemann resins.
More preferably, the nano silica sol is a product of Shandong Baite New Material Co., Ltd, N30; said Si02The aerogel is Shenzhen Zhongji science and technology company AG-D aerogel powder particles.
Further, the defoaming agent is BYK028 aqueous long-acting organic silicon defoaming agent from Picker;
the leveling agent is BYK333 organosilicon leveling agent of Picker company.
The pH regulator is selected from AMP-95, such as AMP-95 from Dow chemical company, USA.
The dipropylene glycol methyl ether is a product with the Dow company brand of DPM; the dipropylene glycol dimethyl ether may be a product of DOW company under the designation DMM.
The dispersant is BYK190 aqueous polymer dispersant of Pico company; the pH regulator is AMP-95 from Dow chemical company, USA.
The thickener is PU40W polyurethane associative thickener of Shenzhen Mingjia science and technology Limited; the hydrophilic polyisocyanate curing agent is of the Cornstarch company
Figure GDA0002965247950000031
XP 2655 product hydrophilic curing agent.
A preparation method of a bi-component water-based inorganic modified durable wood lacquer is characterized by comprising the following steps:
the component A comprises:
step one, adding a high-hydroxyl acrylic acid dispersoid into a paint preparation container;
step two, nano silica sol surface treatment:
adding 20 percent of deionized water in the formula into a container, slowly adding 30 percent of methyltriethoxysilane in the formula under the low-speed stirring of 400-plus 500rpm, slowly adding the nano-silica sol, then dispersing for 15 minutes at a high speed at the rotating speed of 1000-plus 1200rpm to obtain a nano-silica sol surface treatment liquid, standing for 60 minutes, slowly adding the nano-silica sol surface treatment liquid into the paint preparation container filled with the dispersion in the first step under the low-speed stirring of 400-plus 500rpm, and then dispersing for 30 minutes at the rotating speed of 1000-plus 1200 rpm;
step three, sequentially and slowly adding the defoaming agent, the wetting agent, the leveling agent and the pH regulator into the paint preparation container under the low-speed stirring of 400-800 rpm, and then stirring at the medium speed of 600-800rpm for 10 minutes;
step four, mixing the film-forming additive and deionized water according to the proportion of 1: 1, after premixing, slowly adding the mixture into a paint preparation container under the low-speed stirring state of 400-500 rpm;
step five, pretreating an aerogel dispersion liquid:
adding 20 percent of deionized water in the formula into a container, slowly adding the dispersing agent and the residual methyltriethoxysilane under the low-speed stirring of 400-500rpm, and slowly adding SiO2Dispersing the aerogel at 1000-1200rpm for 15 minutes, and then grinding and dispersing the aerogel to a stable state by using ultrasonic waves to obtain the aerogelTo a pretreated aerogel dispersion;
step six, slowly adding the pretreated aerogel dispersion liquid and the residual deionized water in the formula into a paint preparation container under the low-speed stirring of 400-plus 500rpm, and adding a thickening agent to adjust the viscosity of the emulsion after uniformly stirring;
seventhly, standing for defoaming, and filtering and packaging with 200-mesh filter cloth to obtain a component A of the aqueous bi-component inorganic modified ironing-resistant wood lacquer;
component B
Adding dipropylene glycol dimethyl ether into another paint preparation container, adding a hydrophilic polyisocyanate curing agent, and uniformly stirring to obtain a component B of the aqueous bi-component inorganic modified durable wood paint;
according to the component A: the component B comprises: 100 parts of water: 15: and (3) after 10-20 parts of the raw materials are uniformly mixed, standing and defoaming.
Preferably, the components A: the component B comprises: 100 parts of water: 15: 10 ~ 20 after the misce bene, the defoaming of standing, the spraying is on the substrate board of priming paint has been made, wet film spraying volume: 90g/m2And a drying mode: and (3) drying the surface of the paint film for 25-40 minutes at normal temperature, wherein the actual drying time is 24 hours, and drying for 7 days at room temperature.
Compared with the prior art, the aqueous bi-component inorganic modified heat-resistant wood lacquer has excellent physical and chemical resistance, as the paint is formed by chemical reaction, the main resin high-hydroxyl acrylic acid dispersoid has good heat resistance, and inorganic heat-resistant material nano silica sol and aerogel after surface treatment are further added, the comprehensive performance of the obtained paint film is obviously improved, particularly the performances of water resistance, chemical resistance, stain resistance, adhesion resistance, hardness and scratch resistance, heat scalding resistance, wear resistance and the like are more prominent, the hardness of the paint film can reach h, the performance can be comparable to that of PU (polyurethane) oily wood lacquer in the prior art, the paint film can be completely applied to furniture coating of office systems, and the requirements on hardness, scratch resistance and heat resistance are met. Has the following advantages: 1, the high-hydroxyl acrylic acid dispersoid introduced into the formula is a main film forming substance, has high reactivity, high gloss, high transparency, excellent heat resistance and excellent chemical resistance, and has good compatibility with other components and strong adhesive force. 2, the inorganic material nano silica sol is introduced into the formula, the nano silica sol with the particle size of 10-20nm is selected, the compatibility with resin is good after surface treatment, the addition amount can be increased, the miscibility is good, the storage stability is stable, the film forming of the coating can be accelerated, the rigidity and the chemical resistance of the coating are improved, and the water whitening resistance, the heat resistance, the stain resistance and other properties of the coating are greatly improved. And 3, after inorganic material silicon dioxide aerogel dispersion liquid is introduced into the formula and subjected to surface treatment, the thin coating film has high heat resistance, heat transfer can be effectively prevented, and the flammability of the coating film (smoke head scalding resistance) is reduced.
The inorganic material modified double-component high-heat-resistance woodenware paint can be sprayed on the surfaces of high-grade office furniture such as office tables, tea tables, conference tables and other products with high heat resistance and chemical resistance requirements, thoroughly solves the problem that the prior water-based woodenware paint cannot resist high heat, and greatly expands the application range of the water-based woodenware paint.
Detailed Description
The technical solution of the present invention will be further described below by way of examples. The components adopted by the invention are all the existing commercial products.
The water-based bi-component inorganic modified durable wood lacquer is prepared from the following components in parts by weight:
the component A comprises:
Figure GDA0002965247950000051
Figure GDA0002965247950000061
65-70 parts of hydrophilic polyisocyanate curing agent as component B
30-35 parts of dipropylene glycol dimethyl ether
The high hydroxyl acrylic acid dispersoid (resin) adopts high hydroxyl value reaction type resin, has excellent physical drying property, can be crosslinked with hydrophilic curing agent to form a film, and is a main film forming substance. Such as NeoCryl XK-110 from Tesmann resins; has the advantages of high reaction activity, high gloss, high transparency, excellent heat resistance, excellent chemical resistance, good compatibility with other components and strong adhesive force.
The nano silica sol selects SiO with the neutral average grain diameter of 10-15nm2The content is 30 percent, such as the product of Shandong Baite New Material Co., Ltd.N 30. The nano silica sol with the particle size has good compatibility with resin after surface treatment, can keep good stability and good miscibility after increasing the addition amount, can accelerate the film formation of the coating, improve the rigidity and the chemical resistance of the coating, store stably, greatly improve the water white resistance, the heat resistance, the stain resistance and the like of the coating, and increase the heat resistance of a paint film; overcomes the defects that other similar nano silica sol products in the prior art have poor compatibility and stability, can only be added in a small amount and cannot have inorganic heat-resistant performance.
The defoamer is a water-based long-acting silicone defoamer, such as BYK028 from BYK corporation.
The leveling agent is selected from silicone leveling agents such as BYK333 from BYK.
The film-forming auxiliary agent comprises the following components in percentage by weight:
dipropylene glycol methyl ether 35%
And 65% of dipropylene glycol dimethyl ether.
Wherein, the dipropylene glycol methyl ether adopts a product with the brand number of DPM produced by DOW company; dipropylene glycol dimethyl ether is a product with the brand number DMM produced by DOW company;
the wetting agent is a siloxane gemini technology low surfactant, such as TEGO Twin 4100;
the dispersant is selected from water-based polymer dispersant, such as BYK190 from Pico company;
the pH regulator is selected from AMP-95, such as AMP-95 from Dow chemical company, USA
Said Si02The aerogel is selected from 0.003-0.35 g/m of apparent density3The specific surface area is 500-800 m2The SiO has the average particle size of 20-50nm, excellent heat insulation and preservation, low thermal conductivity, low density and high transparency, such as AG-D aerogel powder particles of Shenzhen Zhongji science and technology company, and poor compatibility with resin, and the SiO has the advantages of good heat insulation and preservation performance, low thermal conductivity, low density and high transparency, and is suitable for various fields such as heat insulation2Aerogel warp watchAfter surface treatment, Si0 was obtained2Aerogel dispersion to Si02The aerogel with the optimal particle size can be mixed with the dispersion resin to form a stable state, so that the optimal heat insulation effect is achieved, a paint film with a very thin thickness has high heat resistance, the flammability of the paint film is reduced (the paint film is resistant to end burning), the addition amount is very small, and the cost is saved.
The methyltriethoxysilane, such as 319, of Nanjing emperor Monte chemical Co., Ltd;
the thickener is a polyurethane associative thickener, such as PU40W of Shenzhen Mingjia science and technology Limited.
The hydrophilic polyisocyanate curing agent is a hydrophilic curing agent, such as from Coxseed
Figure GDA0002965247950000071
XP 2655 product.
The compositions, weights and manufacturers and types of the components of examples 1-3 and comparative example 1 are shown in Table one, including but not limited to the product types listed in the Table, and other commercially available products from other manufacturers having the same properties can be used for each component.
Watch 1
Figure GDA0002965247950000081
Wherein the film-forming additive comprises the following components in percentage by weight:
dipropylene glycol methyl ether 35%
And 65% of dipropylene glycol dimethyl ether.
Example 1
The components are weighed according to the weight shown in the example 1 in the table I, and the preparation method comprises the following steps:
the method comprises the following specific implementation steps:
the component A comprises:
step one, adding a high-hydroxyl acrylic acid dispersoid into a paint preparation container;
step two, nano silica sol surface treatment:
adding 20 percent of deionized water into the formula in a container, slowly adding 30 percent of methyltriethoxysilane into the formula under the low-speed stirring of 400-plus 500rpm, slowly adding the nano-silica sol, then dispersing at a high speed of 1000-plus 1200rpm for 15 minutes to obtain a nano-silica sol surface treatment liquid, standing for 60 minutes, slowly adding the nano-silica sol surface treatment liquid into the paint preparation container filled with the dispersion in the step one under the low-speed stirring of 400-plus 500rpm, and dispersing at a high speed of 1000-plus 1200rpm for 30 minutes.
And step three, sequentially and slowly adding the defoaming agent, the wetting agent, the leveling agent and the pH regulator into the paint preparation container under the low-speed stirring of 400rpm, and then stirring at the medium speed of 600-800rpm for 10 minutes.
Step four, mixing the film-forming additive and deionized water according to the proportion of 1: 1, after premixing, slowly adding the mixture into a paint preparation container under the low-speed stirring state of 400-500 rpm;
step five, pretreating an aerogel dispersion liquid:
adding 20 percent of deionized water in the formula into a container, slowly adding the dispersing agent and the residual methyltriethoxysilane under the low-speed stirring of 400-500rpm, and slowly adding SiO2After the aerogel is dispersed for 15 minutes at a high speed of 1000-1200rpm, the aerogel is dispersed to a stable state by ultrasonic grinding, and a pretreated aerogel dispersion liquid is obtained.
Step six, slowly adding the pretreated aerogel dispersion liquid and the residual deionized water into a paint preparation container under the low-speed stirring of 400-500rpm, uniformly stirring, adding a thickening agent, and adjusting the viscosity of the emulsion to be 85KU, wherein the viscosity can also be 80-90 KU.
And seventhly, standing for defoaming, and filtering and packaging by using 200-mesh filter cloth to obtain the component A of the aqueous double-component inorganic modified durable wood lacquer in the embodiment 1.
Component B
Adding dipropylene glycol dimethyl ether into another paint preparation container, adding a hydrophilic polyisocyanate curing agent, and uniformly stirring to obtain the component B of the waterborne two-component inorganic modified durable wood paint of the embodiment 1.
According to the component A: the component B comprises: 100 parts of water: 15: 10, standing for ten minutes to defoam after uniformly mixing, and obtaining the water-based bi-component inorganic modified heat-resistant wood lacquerThe appearance is as follows: spraying semitransparent and slightly white paint liquid on a base material plate with a prepared primer, wherein the spraying amount of a wet film is as follows: 90g/m2And a drying mode: and (3) drying the surface of the paint film for 25 minutes at normal temperature, wherein the actual drying time is 24 hours, and the comprehensive performance of the paint film after drying for 7 days at room temperature is shown in the table II.
Example 2
Taking the components according to the weight of the components shown in the example 2 in the table I, and repeating the method described in the example 1 to obtain the component A and the component B in the example 2;
according to the component A: the component B comprises: 100 parts of water: 15: 15, standing for ten minutes to defoam after uniformly mixing, wherein the obtained aqueous double-component inorganic modified durable wood lacquer has the appearance: spraying semitransparent and slightly white paint liquid on a substrate plate with a prepared primer, wherein the spraying amount of a wet film is as follows: 90g/m2And a drying mode: and (3) drying the surface of the paint film for 35 minutes at normal temperature for 24 hours, and measuring the comprehensive performance of the paint film after drying for 7 days at room temperature in the second table.
Example 3
The components are weighed according to the components shown in the example 3 in the table I, and the method described in the example 1 is repeated to obtain the component A and the component B in the example 3;
according to the component A: the component B comprises: 100 parts of water: 15: 20, standing for ten minutes to defoam after uniformly mixing, wherein the obtained aqueous double-component inorganic modified durable wood lacquer has the appearance: spraying semitransparent and slightly white paint liquid on a substrate plate with a prepared primer, wherein the spraying amount of a wet film is as follows: 90g/m2And a drying mode: the surface of the paint film is dried for 40 minutes at normal temperature, the actual drying time is 24 hours, and the comprehensive performance of the paint film after drying for 7 days at room temperature is shown in the table II.
Comparative example 1
Weighing the components according to the weight in the comparative example 1 in the table I, repeating the method in the example 1 to obtain the wood lacquer in the comparative example 1, constructing by adopting the same method as the example 1, and obtaining the comprehensive performance of the measured lacquer film in the table II.
Comparative example 2
The commonly used water-based wood lacquer in the prior art is selected as a comparative example, the common method in the prior art is adopted for plate making and drying conditions, and the comprehensive performance of the obtained paint film is shown in the second table.
Watch two
Figure GDA0002965247950000111
As is evident from the table II, compared with the comparative examples 1 and 2, the paint films of the examples 1 to 3 have the comprehensiveness which is not beyond the industrial standard of the water-based wood paint; and the paint film has obvious advantages in the aspects of hardness, adhesive force, scratch resistance, boiling water resistance and smoke burning resistance.
Comparative example 1 although substantially the same raw materials as those used in examples were used, SiO was not used because of the difference in the amounts of the respective components2The aerogel, the obtained paint film obviously has the defects of poor boiling water resistance and poor cigarette burning resistance.

Claims (9)

1. The water-based double-component inorganic modified ironing-resistant wood paint is characterized in that: the composition is prepared by mixing the following components in parts by weight:
the component A comprises:
Figure FDA0002965247940000011
component B
65-70 parts of hydrophilic polyisocyanate curing agent
30-35 parts of dipropylene glycol dimethyl ether
The neutral average particle size of the nano silica sol is 10-15 nm;
the apparent density of the silicon dioxide aerogel is 0.003-0.35 g/m3The specific surface area is 500-800 m2(ii)/g, the average particle diameter is 20-50 nm;
wherein, the component A is prepared from the following components in percentage by weight: the component B comprises: 100 parts of water: 15: 10-20 and mixing uniformly.
2. The aqueous two-component inorganic modified durable wood lacquer according to claim 1, characterized in that: the high-hydroxyl acrylic acid dispersion is NeoCryl XK-110 from Disemann resins.
3. The aqueous two-component inorganic modified durable wood lacquer according to claim 1, characterized in that: the nano silica sol is a product of Shandong Baite New Material Co., Ltd, N30; the silicon dioxide aerogel is AG-D aerogel powder particles of Shenzhen Zhongji science and technology company.
4. The aqueous two-component inorganic modified durable wood lacquer according to any one of claims 1 to 3, wherein: the defoaming agent is BYK028 aqueous long-acting organosilicon defoaming agent from Picker;
the leveling agent is a BYK333 organosilicon leveling agent of Picker company;
the pH regulator is AMP-95 from Dow chemical company, USA.
5. The aqueous two-component inorganic modified durable wood lacquer according to any one of claims 1 to 3, wherein: the dipropylene glycol dimethyl ether is a product with the brand name DMM of DOW company.
6. The aqueous two-component inorganic modified durable wood lacquer according to any one of claims 1 to 3, characterized in that: the dispersant is BYK190 aqueous polymer dispersant of Pico company; the pH regulator is AMP-95 from Dow chemical company, USA.
7. The aqueous two-component inorganic modified durable wood lacquer according to any one of claims 1 to 3, wherein: the thickener is PU40W polyurethane associative thickener of Shenzhen Mingjia science and technology Limited; the hydrophilic polyisocyanate curing agent is of the Cornstarch company
Figure FDA0002965247940000021
XP 2655 product hydrophilic curing agent.
8. The preparation method of the aqueous bi-component inorganic modified durable wood lacquer of claim 7 is characterized by comprising the following steps:
the component A comprises:
step one, adding a high-hydroxyl acrylic acid dispersoid into a paint preparation container;
step two, nano silica sol surface treatment:
adding deionized water with the weight ratio of 20% in the formula into a container, slowly adding methyltriethoxysilane with the weight ratio of 30% in the formula under the low-speed stirring of 400-plus 500rpm, slowly adding nano silica sol, then dispersing at the high speed of 1000-plus 1200rpm for 15 minutes to obtain nano silica sol surface treatment liquid, standing for 60 minutes, slowly adding the nano silica sol surface treatment liquid into the paint preparation container with the dispersoid in the first step under the low-speed stirring of 400-plus 500rpm, and then dispersing at the high speed of 1000-plus 1200rpm for 30 minutes;
step three, sequentially and slowly adding the defoaming agent, the wetting agent, the leveling agent and the pH regulator into the paint preparation container under the low-speed stirring of 400-800 rpm, and then stirring at the medium speed of 600-800rpm for 10 minutes;
step four, mixing the film-forming additive and deionized water according to the weight ratio of 1: 1, after premixing, slowly adding the mixture into a paint preparation container under the low-speed stirring state of 400-500 rpm;
step five, pretreating an aerogel dispersion liquid:
adding deionized water in 20 wt% of the formula into a container, slowly adding the dispersing agent and the rest methyltriethoxysilane under the low-speed stirring of 400-500rpm, and slowly adding SiO2Dispersing the aerogel at a high speed of 1000-1200rpm for 15 minutes, and then grinding and dispersing the aerogel to a stable state by using ultrasonic waves to obtain a pretreated aerogel dispersion liquid;
step six, slowly adding the pretreated aerogel dispersion liquid and the residual deionized water in the formula into a paint preparation container under the low-speed stirring of 400-plus 500rpm, and adding a thickening agent to adjust the viscosity of the emulsion after uniformly stirring;
seventhly, standing for defoaming, and filtering and packaging with 200-mesh filter cloth to obtain a component A of the aqueous bi-component inorganic modified ironing-resistant wood lacquer;
component B
Adding dipropylene glycol dimethyl ether into another paint preparation container, adding a hydrophilic polyisocyanate curing agent, and uniformly stirring to obtain a component B of the aqueous bi-component inorganic modified durable wood paint;
uniformly mixing the component A, the component B and water, and standing for defoaming.
9. The construction method of the aqueous bi-component inorganic modified durable wood lacquer of claim 7 is characterized by comprising the following steps: uniformly mixing the component A, the component B and water, standing for defoaming, and spraying on a substrate plate with a ready-made primer, wherein the wet film spraying amount is as follows: 90g/m2And a drying mode: and (3) drying the surface of the paint film for 25-40 minutes at normal temperature, wherein the actual drying time is 24 hours, and drying for 7 days at room temperature.
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CN109337550B (en) * 2018-09-05 2020-11-06 深圳市广田环保涂料有限公司 Aerogel water-based two-component transparent sound insulation coating and preparation and use method thereof
CN109354944B (en) * 2018-09-27 2021-01-12 丁贤勇 Inorganic modified water-based woodware matte varnish and preparation method thereof
CN109535969B (en) * 2018-11-19 2020-11-06 深圳市广田环保涂料有限公司 Aerogel modified bi-component waterborne polyurethane elastic runway coating and preparation and use methods thereof
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CN110527400B (en) * 2019-09-05 2021-09-07 九牧厨卫股份有限公司 Water-based weather-resistant coating
CN110698908B (en) * 2019-10-28 2023-05-12 万辉(广州)高新材料有限公司 Colored water-based paint composition and preparation method thereof
WO2023237604A1 (en) * 2022-06-09 2023-12-14 Basf Coatings Gmbh Primer coating system and composition for achieving excellent water resistance

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