CN112457760A - Water-based paint for various substrates and preparation method thereof - Google Patents
Water-based paint for various substrates and preparation method thereof Download PDFInfo
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- CN112457760A CN112457760A CN202011425225.3A CN202011425225A CN112457760A CN 112457760 A CN112457760 A CN 112457760A CN 202011425225 A CN202011425225 A CN 202011425225A CN 112457760 A CN112457760 A CN 112457760A
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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
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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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
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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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/16—Antifouling paints; Underwater paints
- C09D5/1687—Use of special additives
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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
- 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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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- 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
- C08K2201/001—Conductive additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- 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
- C08K2201/017—Additives being an antistatic agent
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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- Chemical & Material Sciences (AREA)
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- Engineering & Computer Science (AREA)
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- Wood Science & Technology (AREA)
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Abstract
The invention relates to a water-based paint for various substrates and a preparation method thereof, wherein the water-based paint comprises the following components in parts by mass: aqueous silicone-modified polyurethane resin: 30-50 parts of acrylic resin: 10-20 parts of titanium dioxide: 15-20 parts of titanate coupling agent: 1-3 parts of graphene: 1-3 parts of cosolvent: 3-5 parts of wetting agent: 0.1-0.5 part of dispersant: 0.5-1 part of rheological additive: 0.8-1.5 parts of water-based cross-linking agent: 0.5-1 part of water: 20-60 parts. The water-based paint is suitable for various base materials, can also be used for rust-proof coating of rusty base materials, and can avoid the problem of rusting caused by incomplete treatment of the base materials.
Description
Technical Field
The invention belongs to the technical field of coatings, and particularly relates to a water-based coating for various substrates and a preparation method thereof.
Background
The water-based organic silicon modified polyurethane resin is a modified resin prepared from organic silicon oligomer and polyurethane resin, is mainly used for preparing a two-component polyurethane coating, can be cured at normal temperature, and can improve the heat resistance and the weather resistance of the coating.
The acrylic resin is a generic term for polymers of acrylic acid, methacrylic acid and derivatives thereof. The acrylic resin does not generate further crosslinking in the film forming process, so that the acrylic resin has larger relative molecular weight, good light and color retention, water and chemical resistance, quick drying, convenient construction, easy construction recoating and reworking and wide application in the field of coatings.
The water-based paint is a paint which takes water as a diluent and does not contain organic solvent, has no toxicity or pungent smell, is harmless to human bodies, does not pollute the environment, and has the characteristics of plump paint film, good flexibility, water resistance, wear resistance and the like. The water paint can be used on various materials such as woodenware, metal, plastic, glass, building surfaces and the like. However, the water-based paint on the market at present cannot be suitable for various substrates, and the application range is not wide.
Disclosure of Invention
The technical problem to be solved is as follows: aiming at the problems of the existing water-based paint on the market, the invention provides the water-based paint for various substrates and the preparation method thereof.
The technical scheme is as follows: a water-based paint for various substrates comprises the following components in parts by mass: aqueous silicone-modified polyurethane resin: 30-50 parts of acrylic resin: 10-20 parts of titanium dioxide: 15-20 parts of titanate coupling agent: 1-3 parts of graphene: 1-3 parts of cosolvent: 3-5 parts of wetting agent: 0.1-0.5 part of dispersant: 0.5-1 part of rheological additive: 0.8-1.5 parts of water-based cross-linking agent: 0.5-1 part of water: 20-60 parts.
The water-based paint for multiple substrates comprises the following components in parts by mass: aqueous silicone-modified polyurethane resin: 35-45 parts of acrylic resin: 14-17 parts of titanium dioxide: 16-18 parts of titanate coupling agent: 1.5-2.5 parts of graphene: 1.5-2.5 parts of cosolvent: 3.5-4.5 parts of wetting agent: 0.2-0.35 parts of dispersant: 0.6-0.8 part of rheological additive: 1-1.3 parts of a water-based crosslinking agent: 0.7-0.9 parts of water: 30-45 parts.
The water-based paint for multiple substrates comprises the following components in parts by mass: aqueous silicone-modified polyurethane resin: 40 parts of acrylic resin: 15.5 parts, titanium dioxide: 17 parts of titanate coupling agent: 2 parts of graphene: 2 parts of cosolvent: 4 parts of wetting agent: 0.28 part of dispersant: 0.7 part of rheological additive: 1.15 parts of a water-based crosslinking agent: 0.8 part of water: 38 parts of the raw materials.
The titanium dioxide is DuPont R706 titanium dioxide.
The cosolvent is a Dow cosolvent.
The wetting agent described above is a TEGO 4100 wetting agent.
The dispersant is TEGO 750W dispersant.
The rheological additive is TAFIGEL PUR-64 rheological additive.
The aqueous crosslinking agent is a PC-40 polycarbodiimide crosslinking agent.
The preparation method of the water-based paint for various substrates comprises the following steps:
the method comprises the following steps: firstly, putting the water-based organic silicon modified polyurethane resin, the acrylic resin, the water-based cross-linking agent and water into a stirrer, and uniformly stirring at the rotating speed of 1000-1200 r/min;
step two: and (3) putting titanium dioxide, a titanate coupling agent, graphene, a cosolvent, a wetting agent, a dispersing agent and a rheological aid into the stirrer in the first step, heating to 50-70 ℃, carrying out ultrasonic treatment for 30-40 min at the frequency of 700-800 kHz, and uniformly stirring to obtain the water-based paint.
The water-based organic silicon modified polyurethane resin is selected, and the formed film has good cold resistance, water resistance and adhesion. The acrylic resin has excellent fullness, gloss, hardness, solvent resistance and weather resistance after film forming, and does not change color or turn yellow when baked at high temperature. The DuPont R706 titanium dioxide is selected as the titanium dioxide, so that good covering power and coloring strength can be provided in various paint formulas, and in addition, the DuPont titanium dioxide R706 has excellent optical performance due to excellent dispersion performance and unique particle size distribution, and the content of the titanium dioxide in the paint can be reduced to help to save cost. The addition of the titanate coupling agent can increase the amount of pigment filler, improve the dispersion performance, improve the strength of a paint film, and ensure bright color and drying property. Graphene is a two-dimensional carbon nano material, has excellent physical barrier property, electric and thermal conductivity, antistatic property, flame retardance, outstanding mechanical property and chemical stability, and is widely applied to the coating industry. The cosolvent is the Dow cosolvent, so that the cost can be greatly reduced, the paint film can not change color, and the coating has the characteristics of sterilization and the like. The TEGO 4100 wetting agent is selected as the wetting agent, has high activity, is a substrate wetting auxiliary agent with wide application, is unstable in foaming and also has excellent anti-shrinkage effect. The TEGO 750W dispersant is selected as the dispersant, so that the compatibility is good, the influence on the performance of the coating is small, and the water resistance of a paint film can be improved. The rheological additive is TAFIGEL PUR-64 rheological additive, and has good fluidity, leveling property and glossiness. The PC-40 polycarbodiimide crosslinking agent is selected as the water-based crosslinking agent, and the crosslinking agent is suitable for a water-based system, so that the prepared paint film is resistant to water, chemicals, abrasion and contamination, and the adhesive force of the paint to a special substrate can be improved.
The invention selects various components, wherein the two main components of the water-based organic silicon modified polyurethane resin and the acrylic resin are matched with each other to make up for the defects, so that the prepared paint film is suitable for various substrates. The selection and use of other various additives, namely titanium dioxide, a titanate coupling agent, a cosolvent, a wetting agent, a dispersing agent, a rheological additive and a water-based crosslinking agent are mutually promoted and matched, so that the film forming and the improvement of various properties of the coating can be effectively promoted, and a paint film of the coating after film forming has excellent adhesive force and excellent corrosion resistance, salt spray resistance and impact resistance. In addition, the two-dimensional lamellar structure of the graphene material can be stacked layer by layer in the coating to form a compact physical isolation layer, so that the flame retardant property of the coating is improved; can also be crosslinked and compounded with emulsion in the coating to further form a layer of compact protective film which plays a role in blocking air. Even at high temperature, the coating with the graphene material burns to generate carbon dioxide and water, and a more compact and continuous carbon layer is generated, so that the fireproof barrier effect is stronger.
Has the advantages that: the water-based paint for various substrates and the preparation method thereof provided by the invention have the following beneficial effects: the water-based paint disclosed by the invention has excellent adhesive force to various base materials, and has good salt mist resistance, impact resistance and flame retardant property.
Detailed Description
The waterborne silicone modified polyurethane resin used in the following examples was purchased from Guangzhou Henry-Kangxin New Material Co., Ltd., model number SIPU-8736; acrylic resins were purchased from Oohui paint group, Inc., Shandong; dupont R706 titanium dioxide Shandong Chi chemical Co., Ltd; titanate coupling agent purchased from Hangzhou Jeccard chemical Co., Ltd; graphene was purchased from piofeng nanomaterials ltd; the Dow co-solvent and the TEGO 750W dispersant are purchased from Chongqing Kangyin chemical Co., Ltd; the TEGO 4100 wetting agent is purchased from environmental protection science and technology Limited of Lanbo, Shenzhen city; TAFIGEL PUR-64 rheology coagent was purchased from Shanghai titanium industries, Inc.; PC-40 polycarbodiimide crosslinking agents are available from Zonen trade, Inc., Guangzhou.
The preparation of the aqueous coating in the following examples was as follows: firstly, putting the water-based organic silicon modified polyurethane resin, acrylic resin, a PC-40 polycarbodiimide crosslinking agent and water into a stirrer, and uniformly stirring at the rotating speed of 1000-1200 r/min;
step two: and (2) putting DuPont R706 titanium dioxide, a titanate coupling agent, graphene, a Dow co-solvent, a TEGO 4100 wetting agent, a TEGO 750W dispersing agent and a TAFIGEL PUR-64 rheological additive into the stirrer in the first step, heating to 50-70 ℃, carrying out ultrasonic treatment for 30-40 min at the frequency of 700-800 kHz, and uniformly stirring to obtain the water-based paint.
Example 1
A water-based paint for various substrates comprises the following components in parts by mass: aqueous silicone-modified polyurethane resin: 30 parts of acrylic resin: 10 parts of Dupont R706 titanium dioxide: 15 parts of titanate coupling agent: 1 part of graphene: 1 part of Dow cosolvent: 3 parts of wetting agent: 0.1 part of TEGO 750W dispersant: 0.5 part of TAFIGEL PUR-64 rheological additive: 0.8 part of PC-40 polycarbodiimide crosslinking agent: 0.5 part of water: and 20 parts.
Example 2
A water-based paint for various substrates comprises the following components in parts by mass: aqueous silicone-modified polyurethane resin: 50 parts of acrylic resin: 20 parts, 20 parts of DuPont R706 titanium dioxide, and a titanate coupling agent: 3 parts of graphene: 3 parts, 5 parts of Dow cosolvent and a wetting agent: 0.5 part of TEGO 750W dispersant: 1 part of TAFIGEL PUR-64 rheological additive: 1.5 parts of PC-40 polycarbodiimide crosslinking agent: 1 part of water: 60 parts.
Example 3
A water-based paint for various substrates comprises the following components in parts by mass: aqueous silicone-modified polyurethane resin: 35 parts of acrylic resin: 14 parts of Dupont R706 titanium dioxide: 16 parts of titanate coupling agent: 1.5 parts of graphene: 1.5 parts of Dow cosolvent: 3.5 parts of wetting agent: 0.2 part of TEGO 750W dispersant: 0.6 part of TAFIGEL PUR-64 rheological additive: 1 part of PC-40 polycarbodiimide crosslinking agent: 0.7 part of water: 30 parts of.
Example 4
A water-based paint for various substrates comprises the following components in parts by mass: aqueous silicone-modified polyurethane resin: 45 parts of acrylic resin: 17 parts of Dupont R706 titanium dioxide: 18 parts of titanate coupling agent: 2.5 parts of graphene: 2.5 parts of Dow cosolvent: 4.5 parts of wetting agent: 0.35 part of TEGO 750W dispersant: 0.8 part of TAFIGEL PUR-64 rheological additive: 1.3 parts of PC-40 polycarbodiimide crosslinking agent: 0.9 part of water: 45 parts of the raw materials.
Example 5
A water-based paint for various substrates comprises the following components in parts by mass: aqueous silicone-modified polyurethane resin: 40 parts of acrylic resin: 15.5 parts, Dupont R706 titanium dioxide: 17 parts of titanate coupling agent: 2 parts of graphene: 2 parts of Dow cosolvent: 4 parts of wetting agent: 0.28 part of TEGO 750W dispersant: 0.7 part of TAFIGEL PUR-64 rheological additive: 1.15 parts of PC-40 polycarbodiimide crosslinking agent: 0.8 part of water: 38 parts of the raw materials.
Comparative example 1
Comparative example 1 is different from example 5 in that an acrylic resin as a component is not added.
Comparative example 2
Comparative example 2 differs from example 5 in the composition graphene.
Comparative example 3
Comparative example 3 differs from example 5 in that the two components, TAFIGEL PUR-64 rheology aid and PC-40 polycarbodiimide crosslinker, were not added.
The adhesive force performance, the salt spray resistance, the impact resistance and the flame retardant property of the embodiments 1 to 5 and the comparative examples 1 to 3 are detected, and the specific method and the result are as follows:
(1) adhesion test
Taking 5 pieces of plywood, iron plate and plastic plate base materials with the specification of 30cm multiplied by 0.5cm, respectively coating the water-based paint of the embodiment 1 to the embodiment 5 on the front surface of each base material by the same method, coating the water-based paint with the thickness of 0.3mm, drawing a line X on each sample after drying, enabling the line X to be vertical to the base materials, sticking a 3M898 adhesive tape with the specification of 5cm multiplied by 5cm to the surface X of each sample, compacting the adhesive tape by using an eraser, and standing for 10 s. The adhesive tape was quickly torn off in the direction of 90 degrees, the surface of the substrate was visually observed, the peeled area was observed, and the ratio of the area not peeled to the pasted area of the adhesive tape was calculated to represent the adhesion (%) of the aqueous coating of the present invention to various substrates. The results of the measurements are shown in Table 1 below.
TABLE 1
| Detecting items | Example 1 | Example 2 | Example 3 | Example 4 | Example 5 |
| Plywood adhesion (%) | 99.13 | 99.26 | 99.37 | 99.54 | 99.67 |
| Iron plate adhesion (%) | 99.25 | 99.15 | 99.05 | 99.18 | 99.52 |
| Plastic panel adhesion (%) | 98.36 | 98.89 | 99.06 | 99.12 | 99.13 |
As can be seen from Table 1, the water-based paint of the present invention has good adhesion when the substrates are plywood, iron plate, plastic plate.
(2) Salt spray resistance test
8 pieces of iron plates 10cm × 10cm × 0.5cm in gauge were coated with the aqueous coating materials of examples 1 to 5 and comparative examples 1 to 3 on the front surfaces thereof, respectively, in the same manner, to a thickness of 0.3mm, and then dried and scribed with GMW15282, and the samples were put into a GTJ-T-042 salt spray box at 35 ℃ for 1000 hours for evaluation. The scribe and edge corrosion was observed to not exceed 1 mm. The results of the measurements are shown in Table 2 below.
TABLE 2
| Detecting items | Example 1 | Example 2 | Example 3 | Example 4 | Example 5 | Comparative example 1 | Comparative example 1 | Comparative example 1 |
| Longest distance (mm) between the scribe line and the edge erosion | 0.8 | 0.5 | 0.6 | 0.4 | 0.2 | 3.6 | 0.6 | 2.51 |
As can be seen from Table 2, the salt spray resistance of the water-based paint of the invention is excellent, the water-based paint with two main components has more excellent salt spray resistance, and the addition of the TAFIGEL PUR-64 rheological additive and the PC-40 polycarbodiimide crosslinking agent is also beneficial to improving the salt spray resistance of the water-based paint
(3) Impact resistance test
The impact strength of the water-based coatings of examples 1 to 5 and comparative examples 1 to 3 was tested according to GB/T1732-1993 test methods. The results of the measurements are shown in Table 3 below.
TABLE 3
| Detecting items | Example 1 | Example 2 | Example 3 | Example 4 | Example 5 | Comparative example 1 | Comparative example 2 | Comparative example 3 |
| Impact strength (kg. cm) | 48 | 50 | 53 | 50 | 55 | 32 | 43 | 45 |
As can be seen from Table 3, the water-based paint of the present invention is excellent in impact resistance, and the water-based paint of two main components is more excellent in impact resistance, and the water-based paint lacking an auxiliary agent is slightly inferior in impact resistance.
(4) Flame retardancy test
The water-based coatings of the examples to 5 and the comparative examples 1 to 3 are respectively coated on glass slides by the same method, the thickness of each water-based coating is 0.3mm, and then the flame retardant property of the coating is detected by a horizontal burning test method according to the US UL94 standard. The results of the measurements are shown in Table 4 below.
TABLE 4
| Detecting items | Example 1 | Example 2 | Example 3 | Example 4 | Example 5 | Comparative example 1 | Comparative example 2 | Comparative example 3 |
| Burning rate (mm/min) | Can not burn | Can not burn | Can not burn | Can not burn | Can not burn | Can not burn | 15 | Can not burn |
| Flame retardant rating | 5V | 5V | 5V | 5V | 5V | 5V | V-0 | 5V |
As can be seen from table 4, the water-based paint of the present invention has excellent flame retardant performance, and the main role is the synergistic effect between the component graphene and other components.
While the embodiments of the present invention have been described in detail, those skilled in the art will recognize that the embodiments of the present invention can be practiced without departing from the spirit and scope of the claims.
Claims (10)
1. The water-based paint for various substrates is characterized by comprising the following components in parts by mass: aqueous silicone-modified polyurethane resin: 30-50 parts of acrylic resin: 10-20 parts of titanium dioxide: 15-20 parts of titanate coupling agent: 1-3 parts of graphene: 1-3 parts of cosolvent: 3-5 parts of wetting agent: 0.1-0.5 part of dispersant: 0.5-1 part of rheological additive: 0.8-1.5 parts of water-based cross-linking agent: 0.5-1 part of water: 20-60 parts.
2. The water-based paint for multiple substrates according to claim 1, characterized by comprising the following components in parts by mass: aqueous silicone-modified polyurethane resin: 35-45 parts of acrylic resin: 14-17 parts of titanium dioxide: 16-18 parts of titanate coupling agent: 1.5-2.5 parts of graphene: 1.5-2.5 parts of cosolvent: 3.5-4.5 parts of wetting agent: 0.2-0.35 parts of dispersant: 0.6-0.8 part of rheological additive: 1-1.3 parts of a water-based crosslinking agent: 0.7-0.9 parts of water: 30-45 parts.
3. The water-based paint for multiple substrates according to claim 1, characterized by comprising the following components in parts by mass: aqueous silicone-modified polyurethane resin: 40 parts of acrylic resin: 15.5 parts, titanium dioxide: 17 parts of titanate coupling agent: 2 parts of graphene: 2 parts of cosolvent: 4 parts of wetting agent: 0.28 part of dispersant: 0.7 part of rheological additive: 1.15 parts of a water-based crosslinking agent: 0.8 part of water: 38 parts of the raw materials.
4. The aqueous coating for multiple substrates according to claim 1, characterized in that: the titanium dioxide is DuPont R706 titanium dioxide.
5. The aqueous coating for multiple substrates according to claim 1, characterized in that: the cosolvent is a Dow cosolvent.
6. The aqueous coating for multiple substrates according to claim 1, characterized in that: the wetting agent is a TEGO 4100 wetting agent.
7. The aqueous coating for multiple substrates according to claim 1, characterized in that: the dispersant is TEGO 750W dispersant.
8. The aqueous coating for multiple substrates according to claim 1, characterized in that: the rheological additive is TAFIGEL PUR-64 rheological additive.
9. The aqueous coating for multiple substrates according to claim 1, characterized in that: the water-based crosslinking agent is a PC-40 polycarbodiimide crosslinking agent.
10. A method of preparing an aqueous coating for multiple substrates according to claim 1, comprising the steps of:
the method comprises the following steps: firstly, putting the water-based organic silicon modified polyurethane resin, the acrylic resin, the water-based cross-linking agent and water into a stirrer, and uniformly stirring at the rotating speed of 1000-1200 r/min;
step two: and (3) putting titanium dioxide, a titanate coupling agent, graphene, a cosolvent, a wetting agent, a dispersing agent and a rheological aid into the stirrer in the first step, heating to 50-70 ℃, carrying out ultrasonic treatment for 30-40 min at the frequency of 700-800 kHz, and uniformly stirring to obtain the water-based paint.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115851056A (en) * | 2022-12-21 | 2023-03-28 | 江苏德威涂料有限公司 | Water-based acrylic coating and preparation method and application thereof |
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| CN109627943A (en) * | 2018-11-20 | 2019-04-16 | 苏州烯时代材料科技有限公司 | A kind of multifunctional coating and its preparation method and application suitable for battery case |
| CN111072881A (en) * | 2019-12-27 | 2020-04-28 | 深圳市安品有机硅材料有限公司 | Organic silicon modified waterborne polyurethane resin, waterborne coating and preparation method thereof |
| CN111154356A (en) * | 2020-01-17 | 2020-05-15 | 谭建军 | Polyurethane modified heat-insulating coating and preparation method thereof |
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