Anti-static pigment and filler composition, three-dimensional decorative art coating and preparation method and application of three-dimensional decorative art coating

Abstract

The invention relates to an anti-static pigment and filler composition, a three-dimensional decorative art coating as well as a preparation method and application of the three-dimensional decorative art coating. Wherein the anti-static pigment and filler composition comprises conductive pearl powder and conductive titanium dioxide; the weight part ratio of the conductive pearl powder to the conductive titanium dioxide is (15: 1)-(5: 1); the conductive pearl powder is mica coated with one or more layers of semiconductor metal oxides; the conductive titanium dioxide is titanium dioxide coated with one or more layers of semiconductor metal oxides. The anti-static pigment and filler composition provided by the invention can endow the prepared coating with a relatively strong anti-static effect, so that the obtained three-dimensional decorative art coating not only has an art decorative effect, but also has an anti-static effect. The invention also relates to other applications of coatings and articles in coatings.

Description

Technical Field

[0001] The invention relates to the field of coatings, and in particular to an antistatic pigment and filler composition, a three-dimensional decorative art coating, a preparation method and applications thereof. Background Art

[0002] With the continuous improvement of people's demand for home decoration, the art paint market has become increasingly prosperous in recent years. Different from the decorative effect of traditional latex paint with a single color, art paint can provide consumers with different decorative effects. It can not only be rich in color, but also diversified in shape, providing texture or different design sense painting services. Therefore, major paint companies have successively launched different categories of art paint. In the future, the art paint market is bound to be an important part of home decoration that cannot be underestimated.

[0003] Due to the need for modeling design, the paint film surface of most artistic paints is not as smooth as traditional latex paint, but usually uneven. Therefore, after the paint film has been in the air for a long time, pollutants such as dust in the air will easily deposit on the surface of the paint film, especially in the recessed areas, where dust accumulation will be more obvious, affecting the uniformity of the entire paint film and the overall decorative effect; moreover, the dust in these recessed areas is also difficult to clean, thus affecting the service life of the artistic paint. Therefore, there is an urgent need for a new type of artistic paint that can have both artistic decorative effects and less dust absorption to meet market demand. Summary of the invention

[0004] In order to solve the above-mentioned technical problems, the present invention provides an antistatic pigment and filler composition, a three-dimensional decorative art paint, a preparation method and applications thereof, wherein the antistatic pigment and filler composition can give the prepared paint a strong antistatic effect, and the obtained three-dimensional decorative art paint not only has an artistic decorative effect, but also has an antistatic effect.

[0005] To solve the above problems, the present invention is implemented through the following technical solutions:

[0006] The first invention object of the present invention is:

[0007] Provided is an antistatic pigment and filler composition, which comprises conductive pearlescent powder and conductive titanium dioxide;

[0008] The weight ratio of the conductive pearl powder to the conductive titanium dioxide is 15:1 to 5:1;

[0009] The conductive pearl powder is mica coated with one or several layers of semiconductor metal oxide;

[0010] The conductive titanium dioxide is titanium dioxide coated with one or several layers of semiconductor metal oxide.

[0011] The antistatic pigment and filler composition of the present invention is further optimized as follows:

[0012] The particle size of the conductive pearl powder is 10 to 200 μm (preferably 10 to 60 μm, more preferably 30 to 60 μm); and / or

[0013] The particle size of the conductive titanium dioxide is 0.1-0.5 μm (preferably 0.1-0.3 μm).

[0014] The antistatic pigment and filler composition of the present invention is further optimized as follows:

[0015] The conductive pearl powder is composed of conductive pearl powders of different particle sizes.

[0016] The antistatic pigment and filler composition of the present invention is further optimized as follows:

[0017] The semiconductor metal oxide is tin dioxide doped with metal elements.

[0018] The second object of the present invention is:

[0019] Provided is an antistatic three-dimensional decorative art paint, comprising the following components in parts by weight:

[0020] Conductive pearl powder 10-40 parts, conductive titanium dioxide 1-10 parts, emulsion 15-35 parts, water 10-50 parts;

[0021] The weight ratio of the conductive pearl powder to the conductive titanium dioxide is 15:1 to 5:1 (preferably 10:1, more preferably 8:1);

[0022] The conductive pearl powder is mica coated with one or several layers of semiconductor metal oxide;

[0023] The conductive titanium dioxide is titanium dioxide coated with one or several layers of semiconductor metal oxide;

[0024] The glass transition temperature of the emulsion is ≥15°C (preferably ≥20°C, more preferably ≥25°C); and / or

[0025] The content of the conductive pearl powder and the conductive titanium dioxide is 18-25wt% of the total weight.

[0026] The antistatic three-dimensional decorative art paint of the present invention is further optimized as follows:

[0027] It also includes one or more of the following raw material combinations in parts by weight:

[0028] Thickener 0.1-10 parts;

[0029] pH regulator 0.01-5 parts;

[0030] Wetting and dispersing agent 0.1-5 parts;

[0031] Defoaming agent 0.1-5 parts;

[0032] Leveling agent 0-1 part;

[0033] Film-forming aid 0.1-5 parts;

[0034] Preservative 0.1-0.8 parts;

[0035] Antifungal agent 0.1-0.8 parts;

[0036] Antifreeze 0.1-1 part.

[0037] The antistatic three-dimensional decorative art paint of the present invention is further optimized as follows:

[0038] It includes one or a combination of the following features:

[0039] The emulsion is pure acrylic emulsion (preferably AC808A);

[0040] The thickener is one or a combination of cellulose thickener, polyurethane thickener, and alkali swelling thickener; (the thickener is preferably a combination of TT615 and Acrysol RM-8W; the cellulose thickener is preferably a combination of 250MBR and NATROSOL 250HBR; the polyurethane thickener is preferably a combination of TT615 and Acrysol RM-8W; the alkali swelling thickener is preferably a combination of AR6159 and Acrysol RM-7);

[0041] The pH regulator is an organic alcohol amine (preferably Vantex-T);

[0042] The wetting and dispersing agent is: one or a combination of nonionic polymer alkyl ether, nonionic polymer alkyl ester, and nonionic polymer alkyl alcohol (the nonionic polymer alkyl ether is preferably SN-WET 996);

[0043] The defoamer is one or a combination of silicone defoamers and mineral oil defoamers (the silicone defoamer is preferably one or a combination of Defoamer 334 and SN-DEFOAMER 154; the mineral oil defoamer is preferably one or a combination of NXZ and FoamStar ST2410AC);

[0044] The film-forming aid is one or a combination of alcohol esters and ethers.

[0045] In the preferred embodiment of the present invention, a three-dimensional decorative art paint having both artistic decorative effect and antistatic function is prepared by combining conductive pearl powder and conductive titanium dioxide as color fillers and combining pure acrylic emulsion with a relatively high glass transition temperature.

[0046] Pearlescent powder is composed of mica substrate and outer coating, which is usually translucent or transparent. Different coating treatments give pearlescent powder different pearl-like colors at different viewing angles, which can give the paint film a pearlescent effect. It is one of the important raw materials for artistic coatings. Because pearlescent powder is generally transparent and translucent, its hiding power is usually poor. In some artistic coatings, the paint film needs a certain hiding power, so it is usually used in combination with some other powders to increase the hiding power.

[0047] In the present invention, the conductive pearlescent powder is a functional pearlescent powder formed by taking mica as a base material and performing a special coating treatment on its surface. The present invention can give the pearlescent powder and titanium dioxide a certain conductivity by coating one or several layers of semiconductor metal oxides, such as tin dioxide doped with metal elements and tin dioxide doped with non-metallic elements. In addition, the pearlescent powder mostly exists in the form of flakes, and the contact area between the flake conductive pearlescent pigment particles is large, and the conductive performance is also high; the material of this type of conductive pigment comes from natural inorganic substances, and the chemical properties of the product are stable and not easily corroded or oxidized.

[0048] In the present invention, in order to increase the hiding power and maximize the conductive function, adding an appropriate amount of conductive titanium dioxide can achieve a win-win effect. Conductive titanium dioxide is mostly spherical, and spherical powder is added on the basis of this flake structure. This structure can greatly improve the connectivity between pearlescent pigments, thereby achieving the best conductive effect. The conductive pearlescent pigment with this special structure has a stronger conductivity than a single flake conductive pearlescent pigment.

[0049] In the present invention, the addition ratio of the conductive pearlescent powder to the conductive titanium dioxide has a great influence on the three-dimensional decorative effect and performance of the final paint film of the art paint. After a large number of experiments, the inventor found that the conductive pearlescent powder can bring a pearlescent decorative effect, and the effect is more flexible, but the covering power is poor, and the construction needs to be repeated many times. Conductive titanium dioxide has good covering power and is a good supplementary color filler, but if the amount is large, it will cause the paint film to be relatively dull, which is not conducive to the display of the decorative effect of the art paint film. When the addition ratio of conductive pearlescent powder: conductive cornstarch is less than 5:1, the covering power of the paint film is too large, affecting the flexibility of the decorative effect. When the ratio is greater than 15:1, the covering power is too weak, affecting the final construction process. Therefore, a balance between the two can be achieved between 15:1-5:1.

[0050] In the present invention, the emulsion is preferably an emulsion with a higher glass transition temperature. Since the powder in the artistic paint is relatively simple and the emulsion content is high, in order to increase the wear resistance of the paint film surface and reduce the possibility of the paint film sticking back, it is usually necessary to select an emulsion with a higher glass transition temperature, which will give the paint film better performance. The inventors have also confirmed this through a large number of experimental screenings, and preferably use a pure acrylic emulsion with a higher glass transition temperature as the film-forming substance in this artistic paint.

[0051] In the present invention, the thickener, pH regulator, wetting and dispersing agent, defoaming agent, film-forming aid, antifreeze agent, preservative, and mildewproofing agent are not particularly limited and can be selected from conventional materials in the art, prepared by conventional methods, or purchased from the market.

[0052] It should be understood that the antistatic three-dimensional decorative art coating of the present invention may further include other components as long as the performance of the obtained composition is not affected.

[0053] The third invention object of the present invention is:

[0054] Provided is a method for preparing the above-mentioned antistatic three-dimensional decorative art paint, which comprises a first mixed liquid and a second mixed liquid;

[0055] The first mixed solution comprises the following components in parts by weight:

[0056] Conductive pearl powder 10-40 parts, conductive titanium dioxide 1-10 parts, water 10-50 parts;

[0057] The stirring speed of the first mixed solution (when adding conductive pearl powder and conductive titanium dioxide) is preferably 600 to 2000 rpm, preferably 800 to 1500 rpm, and more preferably 800 to 1000 rpm;

[0058] The stirring time is preferably 10 to 60 minutes, more preferably 20 to 50 minutes, more preferably 25 to 45 minutes.

[0059] The second mixed solution comprises the following components in parts by weight:

[0060] 15-35 parts of emulsion;

[0061] The glass transition temperature of the emulsion is ≥15°C (preferably ≥20°C, more preferably ≥25°C); and / or

[0062] The content of the conductive pearl powder and the conductive titanium dioxide is 18-25wt% of the total weight.

[0063] It comprises the following preparation steps:

[0064] The first mixed liquid and the second mixed liquid are mixed under stirring conditions to prepare the antistatic three-dimensional decorative art paint.

[0065] The fourth invention objective of the present invention is:

[0066] Provided is a coating, which is obtained by coating the aforementioned antistatic three-dimensional decorative art paint on a substrate;

[0067] The substrate is selected from the following group (but not limited to): wall surface, putty board, asbestos-free fiberboard, and fireproof board.

[0068] The fifth invention objective of the present invention is:

[0069] Provided is a product, which includes (but is not limited to): a substrate, the coating described above, and a primer coated on the surface of the substrate.

[0070] The raw materials used in the following examples are shown in Table 1.

[0071] Table 1

[0072]

[0073] DETAILED DESCRIPTION

[0074] In order to make the application, technical scheme and advantages of the present invention more clear, the present invention is described in detail in conjunction with specific embodiments. It should be understood that the embodiments are only used to illustrate the present invention, but not to limit the protection scope of the present invention. All simple improvements to the preparation method of the present invention under the premise of the concept of the present invention belong to the protection scope of the present invention.

[0075] Example 1: An antistatic three-dimensional decorative art paint

[0076] Weigh water according to the weight ratio and add it to the dispersion tank, control the speed at 200-300 rpm, add the following in sequence: cellulose thickener, organic alcohol amine pH regulator, wetting dispersant, silicone defoamer, adjust the speed to 500-600 rpm, add conductive pearl powder, conductive titanium dioxide, adjust the speed to 1000 rpm, and disperse for 15 minutes (first mixed solution);

[0077] Then control the speed to 500-600 rpm, add the following in sequence: preservative, mildew preventer, emulsion, film-forming aid, mineral oil defoamer, antifreeze, disperse for 15 minutes to obtain the antistatic three-dimensional decorative art paint.

[0078] The following comparative examples are prepared in the same manner as in the examples, except that the types and amounts of the raw materials used are different.

[0079] The specific addition amount of each raw material and the performance test results in the examples and comparative examples are shown in Table 2.

[0080] Table 2 Composition of each raw material in the embodiments and comparative examples (parts by weight):

[0081]

[0082] Table 3 Performance test results of embodiments and comparative examples:

[0083]

[0084] in conclusion:

[0085] As can be seen from the above table, Example 1 and Example 2, as decorative coatings, meet the corresponding standards in terms of basic performance, have outstanding environmental performance, and have an undetectable VOC content; the resistivity of the paint film surface is tested in accordance with "SJT11159-1998-Test Method for Electrostatic Performance of Floor Coverings and Assembled Floors", and the resistivity of the paint film is within the range of 1×106--1×109Ω, that is, the paint film has a good anti-static function:

[0086] Within the specified range, as the amount of conductive titanium dioxide and conductive pearlescent powder increases, the resistivity decreases and the anti-static function becomes better.

[0087] In Comparative Example 1, in which the conductive titanium dioxide and the conductive pearlescent powder exceed the lower limit set by the present technical solution, it can be seen that insufficient addition of the conductive titanium dioxide and the conductive pearlescent powder will significantly affect the antistatic function;

[0088] In Comparative Example 2, in which the conductive titanium dioxide and the conductive pearlescent powder exceed the upper limit set by the technical solution, it can be found that after exceeding a certain ratio, more conductive titanium dioxide and conductive pearlescent powder are used, and the combination that is not within the preferred ratio range may affect the synergistic effect of the two, thereby causing the antistatic performance to no longer continue to increase, but to decrease to a certain extent;

[0089] In addition, it will have a certain impact on other basic properties of the coating.

[0090] In Comparative Example 3, a styrene acrylic emulsion with a relatively low glass transition temperature is used. In the same system of conductive titanium dioxide and conductive pearlescent powder, the tested resistivity is relatively large and the antistatic function is significantly lower than that of Example 1.

[0091] To sum up, the above are only preferred embodiments of the present invention and are not intended to limit the present invention in any form. Any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the present invention using the disclosed technical content are regarded as equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the protection scope of the technical solution of the present invention.

[0092] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0093] The experimental methods without specific conditions in the present invention are usually carried out under conventional conditions or conditions recommended by the manufacturer.

[0094] Unless otherwise stated, the various optimization technical solutions in the present invention can be combined with each other.

[0095] Unless otherwise indicated, percentages and parts are by weight.

[0096] Experimental methods without specific conditions specified in the instructions and examples are usually carried out under conventional conditions or conditions recommended by the manufacturers.

[0097] Unless otherwise defined, all professional and scientific terms used herein have the same meaning as those familiar to those skilled in the art. In addition, any method and material similar or equivalent to the described content can be applied to the method of the present invention.

Claims

1. An antistatic pigment and filler composition, characterized in that: It includes conductive pearl powder and conductive titanium dioxide; The weight ratio of the conductive pearl powder to the conductive titanium dioxide is 15:1 to 5:1; The conductive pearl powder is mica coated with one or several layers of semiconductor metal oxide; The conductive titanium dioxide is titanium dioxide coated with one or several layers of semiconductor metal oxide.

2. The antistatic pigment and filler composition according to claim 1, characterized in that: The particle size of the conductive pearl powder is 10 to 200 μm; and / or The particle size of the conductive titanium dioxide is 0.1-0.5 μm.

3. The antistatic pigment and filler composition according to claim 1, characterized in that: The conductive pearl powder is composed of conductive pearl powders of different particle sizes.

4. The antistatic pigment and filler composition according to claim 1, characterized in that: The semiconductor metal oxide is tin dioxide doped with metal elements.

5. An antistatic three-dimensional decorative art paint, characterized in that: It comprises the following components in parts by weight: Conductive pearl powder 10-40 parts, conductive titanium dioxide 1-10 parts, emulsion 15-35 parts, water 10-50 parts; The weight ratio of the conductive pearl powder to the conductive titanium dioxide is 15:1 to 5:1; The conductive pearl powder is mica coated with one or several layers of semiconductor metal oxide; The conductive titanium dioxide is titanium dioxide coated with one or several layers of semiconductor metal oxide; The glass transition temperature of the emulsion is ≥15°C; and / or The content of the conductive pearl powder and the conductive titanium dioxide is 18-25wt% of the total weight.

6. The antistatic three-dimensional decorative art paint according to claim 5, characterized in that: It also includes one or more of the following raw material combinations in parts by weight: Thickener 0.1-10 parts; 0.01 to 5 parts of pH regulator; Wetting and dispersing agent 0.1 to 5 parts; Defoaming agent 0.1-5 parts; Leveling agent 0-1 part; Film-forming aid 0.1-5 parts; Preservative 0.1-0.8 parts; Antifungal agent 0.1-0.8 parts; Antifreeze 0.1-1 part.

7. The antistatic three-dimensional decorative art paint according to claim 6, characterized in that: It includes one or a combination of the following features: The emulsion is pure acrylic emulsion; The thickener is one or a combination of cellulose thickener, polyurethane thickener, and alkali swelling thickener; The pH regulator is an organic alcohol amine; The wetting and dispersing agent is one or a combination of nonionic polymer alkyl ether, nonionic polymer alkyl ester, and nonionic polymer alkyl alcohol; The defoaming agent is: one or a combination of silicone defoaming agents and mineral oil defoaming agents; The film-forming aid is one or a combination of alcohol esters and ethers.

8. A method for preparing the antistatic three-dimensional decorative art paint according to claim 5 or 6, characterized in that: It includes a first mixed liquid and a second mixed liquid; The first mixed solution comprises the following components in parts by weight: Conductive pearl powder 10-40 parts, conductive titanium dioxide 1-10 parts, water 10-50 parts; The second mixed solution comprises the following components in parts by weight: 15-35 parts of emulsion; It comprises the following preparation steps: The first mixed liquid and the second mixed liquid are mixed under stirring conditions to prepare the antistatic three-dimensional decorative art paint.

9. A coating, characterized in that: The antistatic three-dimensional decorative art paint is obtained by coating a substrate with the antistatic three-dimensional decorative art paint as claimed in claim 5.

10. A product, characterized in that: It includes: A substrate, the coating according to claim 9, and a primer applied on the surface of the substrate.

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