Water-based single-component hammer artistic effect coating and preparation method thereof

Abstract

The invention relates to a water-based single-component hammer artistic effect paint and a preparation method thereof, and relates to the technical field of paints.The water-based single-component hammer artistic effect paint is prepared from, by weight, 16.6-42.2 parts of water, 2.7-8.5 parts of auxiliaries, 20-30 parts of pearl powder and 35-45 parts of organic film forming matter. The water-based single-component hammer artistic effect coating provided by the invention adopts a water-based single-component design, thoroughly abandons the use of an organic solvent, fundamentally eliminates the environmental pollution caused by solvent volatilization, conforms to the national low emission index, and is beneficial to protecting the ecological environment and human health.

Description

Technical Field

[0001] The invention relates to the technical field of coatings, and in particular to a water-based single-component hammer-grain artistic effect coating and a preparation method thereof. Background Art

[0002] Hammer paint is famous for its unique coating effect. The pattern on its surface is like the trace left by a hammer hitting a metal plate. It is not only artistic and beautiful, but also cleverly covers up the unevenness of the casting surface and provides excellent protection. This paint is widely used in various instruments, doors and windows, metal counters, machine tools and other fields because of its clear hammer pattern, unique shape and strong three-dimensional sense, making it an ideal choice for decoration and protection.

[0003] However, traditional hammer paint usually adopts a two-component formula and needs to add solvents with different evaporation rates to promote the formation of texture. This practice not only has a significant impact on the environment, but also the two-component paint has relatively high requirements for construction conditions, which increases the difficulty of construction.

[0004] Therefore, there is an urgent need for a single-component hammer-textured artistic effect paint that does not require the addition of solvents to meet national low-emission targets. Summary of the invention

[0005] In order to solve the above problems, the present invention provides a water-based single-component hammer-texture artistic effect paint and a preparation method thereof.

[0006] In a first aspect, the present invention provides a water-based one-component hammer-grain artistic effect paint, which comprises the following components in parts by weight:

[0007] 16.6-42.2 parts of water, 2.7-8.5 parts of additives, 20-30 parts of pearl powder, 35-45 parts of organic film-forming substances;

[0008] The pearl powder is composed of pearl powder A and pearl powder B with two different particle sizes, the particle size of pearl powder A is 5-25um, and the particle size of pearl powder B is 20-80um;

[0009] The auxiliary agents include wetting agents, dispersants and defoamers;

[0010] The HLB value of the wetting agent is 15 to 19;

[0011] The HLB value of the dispersant is 15 to 19;

[0012] The HLB value of the defoamer is 1 to 3;

[0013] The defoaming agent includes a non-silicon defoaming agent and a silicon defoaming agent; the non-silicon defoaming agent is a mineral oil defoaming agent, and the silicon defoaming agent is polydimethylsiloxane.

[0014] Furthermore, the water-based one-component hammer-grain artistic effect paint comprises the following components in parts by weight:

[0015] 29.4 parts of water, 5.6 parts of additives, 40 parts of organic film-forming substances, 25 parts of pearlescent powder

[0016] Further, the auxiliary agent includes the following components by weight: 0.2-0.4 parts of wetting agent, 0.5-1.2 parts of dispersant, 0.1-0.5 parts of non-silicon defoamer, 0.1-0.5 parts of silicon defoamer, 0.2-0.8 parts of thickener, 1-3 parts of film-forming aid, 0.5-1.5 parts of antifreeze agent and 0.2-0.5 parts of preservative. Further, the wetting agent includes polyoxyethylene ether or its derivatives, and the dispersant is a hydrophilic polycarboxylate sodium salt type dispersant.

[0017] Furthermore, the non-silicon defoamer is a mineral oil defoamer, and the silicon defoamer is polydimethylsiloxane.

[0018] Furthermore, the thickener includes hydrophobically modified hydroxyethyl cellulose, and the preservative includes isothiazolinones, formaldehyde and benzoimidazole.

[0019] Furthermore, the film-forming aid includes hexadecyl alcohol ester with a diester structure, and the antifreeze agent is polyethylene glycol.

[0020] Furthermore, the pearlescent powder is composed of pearlescent powder A and pearlescent powder B of two different particle sizes, the particle size of pearlescent powder A is 5-25um, and the particle size of pearlescent powder B is 20-80um; the organic film-forming substance is a styrene-acrylic emulsion including at least one of a copolymer emulsion of styrene and isooctyl acrylate and a copolymer emulsion of styrene and butyl acrylate.

[0021] In a second aspect, the present invention provides a method for preparing the water-based one-component hammer-grain artistic effect paint according to any one of the first aspects, the preparation method comprising the following steps:

[0022] Stirring and mixing water and a thickener to obtain a first mixture;

[0023] Adding a dispersant, a wetting agent, an antifreeze agent, a mineral oil defoamer and a film-forming aid to the first mixed material and stirring and mixing them to obtain a second mixed material;

[0024] Adding pearl powder to the second mixed material and stirring and mixing to obtain a third mixed material;

[0025] An organic film-forming substance and a silicon-based defoaming agent are added to the third mixed material and stirred and mixed, and then a bactericide and a mildewcide are added and stirred and mixed to obtain the water-based single-component hammer-grain artistic effect paint.

[0026] The above technical solution provided by the embodiment of the present invention has at least the following advantages compared with the prior art:

[0027] The embodiment of the present invention provides a water-based single-component hammer-grain artistic effect paint and a preparation method thereof. The present invention provides a water-based single-component hammer-grain artistic effect paint, which adopts a water-based single-component design, completely abandons the use of organic solvents, fundamentally eliminates the pollution of solvent volatilization to the environment, meets the national low emission indicators, and is beneficial to protecting the ecological environment and human health. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0029] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0030] Figure 1 A schematic flow chart of a method for preparing a water-based one-component hammer-texture artistic effect paint provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] Unless otherwise specified, various raw materials, reagents, instruments and equipment used in the present invention can be purchased from the market or prepared by existing methods.

[0033] The existing hammer art effect coatings mainly have the following problems:

[0034] 1. High VOC; 2. The raw materials of silver paste or silver powder are expensive and the production cost is high, which limits the application field of hammer paint; 3. Two-component performance is required to achieve better performance.

[0035] Therefore, under the premise of ensuring that the hammer paint has a strong three-dimensional effect, it is urgent to develop a water-based one-component hammer paint that does not add silver paste or silver powder and is widely used.

[0036] The inventor discovered through experiments that the reasons are as follows:

[0037] 1. The high VOC is due to the introduction of solvents. During the drying and film-forming process of the coating, the different evaporation rates of solvents and water cause differences in surface tension, thus generating Bénard cells.

[0038] 2. Adding silver paste or silver powder has a larger specific gravity, which causes uneven precipitation with pigments and fillers, thus producing a three-dimensional hammer pattern.

[0039] 3. Two-component is because in order to make the Bénard cells more obvious, the selected resin performance is generally poor, so it needs to be combined with a curing agent to enhance the performance.

[0040] In a first aspect, the present invention provides a water-based one-component hammer-grain artistic effect paint, which comprises the following components in parts by weight:

[0041] 16.6-42.2 parts of water, 2.7-8.5 parts of additives, 20-30 parts of pearl powder, 35-45 parts of organic film-forming substances;

[0042] The pearl powder is composed of pearl powder A and pearl powder B with two different particle sizes, the particle size of pearl powder A is 5-25um, and the particle size of pearl powder B is 20-80um;

[0043] The auxiliary agents include wetting agents, dispersants and defoamers;

[0044] The HLB value of the wetting agent is 15 to 19;

[0045] The HLB value of the dispersant is 15 to 19;

[0046] The HLB value of the defoamer is 1 to 3;

[0047] The defoaming agent includes a non-silicon defoaming agent and a silicon defoaming agent; the non-silicon defoaming agent is a mineral oil defoaming agent, and the silicon defoaming agent is polydimethylsiloxane.

[0048] The present invention provides a water-based single-component hammer-texture artistic effect paint, which adopts a water-based single-component design, completely abandons the use of organic solvents, fundamentally eliminates the pollution of solvent volatilization to the environment, meets the national low emission indicators, and is beneficial to protecting the ecological environment and human health.

[0049] The specific principles are as follows:

[0050] 1. The essence of Bénard cells is inconsistent surface tension. To produce inconsistent surface tension, it is not necessary to have a difference in the evaporation rate of solvents and water. Adding additives with extremely low surface tension in the hydrophilic-lipophilic ratio in the formula can produce inconsistent surface tension and achieve texture formation. Therefore, resins with better performance can be selected, and there is no need to use a curing agent.

[0051] The present invention improves the hydrophilicity of the formula by selecting dispersants and wetting agents with larger HLB values; and silicone defoamers can be selected for extremely low surface tension, and defoamers with poor compatibility are selected for use in combination. During use, oil shrinkage may occur, resulting in uneven hydrophilicity.

[0052] 2. To produce a three-dimensional effect, the optical property of pearlescent powder itself can be used - the perspective flash effect. The perspective flash effect refers to the ability to see different colors depending on the observer's angle. Its mechanism is that when light undergoes multiple refractions, reflections, partial absorption, and partial penetration at transparent interfaces with different refractive indices, light interference will inevitably occur between various parallel reflected lights. And when pearlescent powders of different particle sizes are matched, the path of light in the paint film is changed, which can bring a stronger three-dimensional visual effect. In addition, a unique rubbing and coating process can make pearlescent powder present a stronger three-dimensional effect.

[0053] The present invention selects silver-white pearlescent powder of 5-25um and 30-80um for matching, and then uses a stainless steel rubbing board to rub and apply in circles "0", so that the pearlescent powder is unevenly arranged, and the Bénard vortex phenomenon is strengthened. In addition, under the scheme of the above principle 1, the oil shrinkage formed will cause the pearlescent powder to form a pattern effect similar to that formed when a hammer hits a metal plate.

[0054] In some specific embodiments, the water-based one-component hammer-grain artistic effect paint includes the following components in parts by weight:

[0055] 16.6-42.2 parts of water, 2.7-8.5 parts of additives, 20-30 parts of pearl powder, 35-45 parts of organic film-forming substances.

[0056] In some specific embodiments, the additive includes the following components by weight: 0.2-0.4 parts of wetting agent, 0.5-1.2 parts of dispersant, 0.1-0.5 parts of non-silicon defoamer, 0.1-0.5 parts of silicon defoamer, 0.2-0.8 parts of thickener, 1-3 parts of film-forming aid, 0.5-1.5 parts of antifreeze agent and 0.2-0.5 parts of preservative. In some specific embodiments, the wetting agent includes polyoxyethylene ether or its derivatives, wherein Clariant LCN407 is preferred if HLB≥15;

[0057] The dispersant is a hydrophilic polycarboxylate sodium salt type dispersant, preferably San Nopco SN-5040

[0058] The non-silicon defoamer is a mineral oil defoamer, preferably NXZ;

[0059] The silicon defoamer is polydimethylsiloxane, preferably BYK-019;

[0060] The thickener includes hydrophobically modified hydroxyethyl cellulose;

[0061] The antiseptic and mildew-proofing agents include isothiazolinones, formaldehyde and benzimidazole;

[0062] The film-forming aid includes a hexadecanol ester having a diester structure;

[0063] The antifreeze agent is polyethylene glycol.

[0064] In some specific embodiments, the pearlescent powder is composed of pearlescent powder A and pearlescent powder B of two different particle sizes, and the weight ratio of pearlescent powder A to pearlescent powder B is 1:2; the particle size of pearlescent powder A is 5-25um, and the particle size of pearlescent powder B is 20-80um; the organic film-forming substance is a styrene-acrylic emulsion including at least one of a copolymer emulsion of styrene and isooctyl acrylate and a copolymer emulsion of styrene and butyl acrylate.

[0065] In some specific embodiments, the method for using the water-based one-component hammer-grain artistic effect paint provided by the present invention comprises the following process:

[0066] Use a spray gun to evenly spray onto the base material containing the primer, and then use a stainless steel rub board to rub in circles. This step is called the "powder flipping" process, which makes the pearlescent powder unevenly distributed. At this time, the silicone defoamer will shrink, making the pearlescent powder appear uneven in thickness and gloss, forming a three-dimensional effect. Then when it is 80% to 90% dry, rub in circles again. This step is called the "compacting" process. At this time, the shrinkage phenomenon is already very weak, so this step is to reduce the rubbing marks caused by the first step of rubbing and improve the feel.

[0067] In a second aspect, based on the same inventive concept, the present invention provides a method for preparing the water-based one-component hammer-grain artistic effect coating according to any one of the first aspects, such as Figure 1 As shown, the preparation method comprises the following steps:

[0068] Stirring and mixing water and a thickener to obtain a first mixture;

[0069] Adding a dispersant, a wetting agent, an antifreeze agent, a mineral oil defoamer and a film-forming aid to the first mixed material and stirring and mixing them to obtain a second mixed material;

[0070] Adding pearl powder to the second mixed material and stirring and mixing to obtain a third mixed material;

[0071] An organic film-forming substance and a silicon-based defoaming agent are added to the third mixed material and stirred and mixed, and then a bactericide and a mildewcide are added and stirred and mixed to obtain the water-based single-component hammer-grain artistic effect paint.

[0072] The preparation method of the water-based one-component hammer-grain artistic effect paint provided by the embodiment of the present invention is simple, does not require additional specific equipment, and is suitable for mass industrial production. At the same time, the preparation method is implemented based on the water-based one-component hammer-grain artistic effect paint described in any one of the first aspects, and therefore has at least the beneficial effects of the water-based one-component hammer-grain artistic effect paint described in any one of the first aspects, which will not be described one by one here.

[0073] In some specific embodiments, for example, the above preparation method includes the following process:

[0074] Step S1: Add 29.4 parts of water and 0.5 parts of thickener into a container and stir at 500-800 rpm for 3-5 minutes;

[0075] Step S2: adding 0.85 parts of dispersant, 0.3 parts of wetting agent, 1 part of antifreeze agent, 0.3 parts of mineral oil defoamer, and 2 parts of film-forming aid; stirring at 500-800 rpm for 3-5 minutes;

[0076] Step S3: Step S5: Add 8.3 parts of 5-25um pearl powder and 16.7 parts of 20-80um pearl powder and stir at 1000-1500rpm for 15-25min to obtain a mixed solution;

[0077] Step S4: adding 40 parts of the emulsion and 0.3 parts of a silicone defoamer, and stirring at 500-800 rpm for 3-5 min;

[0078] Step S5: Add 0.35 parts of preservative and mildew preventer to obtain the finished product.

[0079] It should be noted that the components and raw materials involved in the water-based one-component hammer-grain artistic effect paint and the preparation method thereof provided in the embodiments of the present invention, unless otherwise specified or specified, can be directly commercially available products or homemade using existing public preparation methods; at the same time, the steps and parameters involved, unless otherwise specified or specified, can be carried out according to the existing coating processing technology or directly using existing equipment, and the present invention document will not describe them one by one.

[0080] The present invention will be further described below in conjunction with specific examples. It should be understood that these examples are intended only to illustrate the present invention and are not intended to limit the scope of the present invention. The experimental methods in the following examples that do not specify specific conditions are usually measured according to national standards. If there is no corresponding national standard, then the conditions recommended by the manufacturer are followed.

[0081] The main raw material information involved in the following examples and comparative examples is as follows:

[0082] Thickener: The specific name is 250HBR, purchased from Ashland.

[0083] Film-forming aid: The specific name is hexadecyl alcohol ester, purchased from Qilu Eastman Fine Chemical Co., Ltd.

[0084] Wetting agent: The specific name is LCN407, purchased from Clariant.

[0085] Dispersant: The specific name is SN-5040, purchased from San Nopco.

[0086] Non-silicone defoamer: The specific name is NXZ, purchased from San Nopco.

[0087] Silicone defoamer: The specific name is BYK-019, purchased from BYK.

[0088] Anticorrosion and antifungal agent: The specific name is MBS 5050, purchased from Guangzhou Duwei Trading Co., Ltd.

[0089] Antifreeze: The specific name is polyethylene glycol, purchased from Clariant.

[0090] Organic film-forming substance: The specific name is RS-706, purchased from Badfull manufacturer.

[0091] Pearlescent powder A: The specific name is QC6120 crystal white, purchased from Guangzhou United Materials Technology Co., Ltd.

[0092] Pearlescent powder B: The specific name is QC6150, purchased from Guangzhou United Materials Technology Co., Ltd.

[0093] Example 1

[0094] This example provides a water-based one-component hammer-grain artistic effect paint, which includes the following components in parts by weight:

[0095] 29.4 parts of water, 5.6 parts of additives (specifically: 0.3 parts of wetting agent, 0.85 parts of dispersant, 0.3 parts of non-silicone defoaming agent, 0.3 parts of silicone defoaming agent, 0.5 parts of thickener, 2 parts of film-forming aid, 0.1 parts of preservative and 1 part of antifreeze agent), 40 parts of organic film-forming substance, 25 parts of pearlescent powder (specifically 8.3 parts of pearlescent powder A and 16.7 parts of pearlescent powder B).

[0096] The preparation method of the above-mentioned water-based one-component hammer-grain artistic effect paint comprises the following steps:

[0097] Step S1: Add 29.4 parts of water and 0.5 parts of thickener into a container and stir at 500-800 rpm for 3-5 minutes;

[0098] Step S2: adding 0.85 parts of dispersant, 0.3 parts of wetting agent, 1 part of antifreeze agent, 0.3 parts of mineral oil defoamer, and 2 parts of film-forming aid; stirring at 500-800 rpm for 3-5 minutes;

[0099] Step S3: Step S5: Add 8.3 parts of 5-25um pearl powder and 16.7 parts of 20-80um pearl powder and stir at 1000-1500rpm for 15-25min to obtain a mixed solution;

[0100] Step S4: adding 40 parts of the emulsion and 0.3 parts of a silicone defoamer, and stirring at 500-800 rpm for 3-5 min;

[0101] Step S5: Add 0.35 parts of preservative and mildew preventer to obtain the finished product.

[0102] When using, spray it evenly onto the base material containing the primer through a spray gun, and then use a stainless steel rub board to rub it in circles. This step is called the "powder flipping" process, which makes the pearlescent powder unevenly arranged. At this time, the silicone defoamer will shrink, making the pearlescent powder appear uneven in thickness and gloss, forming a three-dimensional effect. Then when it is 80% to 90% dry, make another light circle "0". This step is called the "compacting" process. At this time, the oil shrinkage phenomenon is already very weak, so this step is to reduce the rubbing marks caused by the first step of rubbing and improve the feel.

[0103] Example 2

[0104] This example provides a water-based one-component hammer-grain artistic effect paint, which includes the following components in parts by weight:

[0105] 16.6 parts of water, 8.5 parts of additives (specifically: 0.4 parts of wetting agent, 1.2 parts of dispersant, 0.5 parts of non-silicone defoaming agent, 0.5 parts of silicone defoaming agent, 0.8 parts of thickener, 3 parts of film-forming aid, 0.35 parts of preservative and 1.5 parts of antifreeze agent), 45 parts of organic film-forming substance, 30 parts of pearlescent powder (specifically 10 parts of pearlescent powder A and 20 parts of pearlescent powder B).

[0106] The preparation method of the above-mentioned water-based one-component hammer-grain artistic effect paint comprises the following steps:

[0107] Step S1: Add 42.2 parts of water and 0.8 parts of thickener into a container and stir at 500-800 rpm for 3-5 minutes;

[0108] Step S2: adding 1.2 parts of dispersant, 0.4 parts of wetting agent, 1.5 parts of antifreeze agent, 0.5 parts of mineral oil defoamer, and 3 parts of film-forming aid; stirring at 500-800 rpm for 3-5 minutes;

[0109] Step S3: Step S5: Add 10 parts of 5-25um pearl powder and 20 parts of 20-80um pearl powder and stir at 1000-1500rpm for 15-25min to obtain a mixed solution;

[0110] Step S4: adding 45 parts of the emulsion and 0.5 parts of a silicone defoamer, and stirring at 500-800 rpm for 3-5 min;

[0111] Step S5: Add 0.5 parts of preservative and mildew preventer to obtain the finished product.

[0112] When using, spray it evenly onto the base material containing the primer through a spray gun, and then use a stainless steel rub board to rub it in circles. This step is called the "powder flipping" process, which makes the pearlescent powder unevenly arranged. At this time, the silicone defoamer will shrink, making the pearlescent powder appear uneven in thickness and gloss, forming a three-dimensional effect. Then when it is 80% to 90% dry, make another light circle "0". This step is called the "compacting" process. At this time, the oil shrinkage phenomenon is already very weak, so this step is to reduce the rubbing marks caused by the first step of rubbing and improve the feel.

[0113] Example 3

[0114] This example provides a water-based one-component hammer-grain artistic effect paint, which includes the following components in parts by weight:

[0115] 42.2 parts of water, 2.7 parts of additives (specifically: 0.2 parts of wetting agent, 0.5 parts of dispersant, 0.1 parts of non-silicone defoaming agent, 0.1 parts of silicone defoaming agent, 0.2 parts of thickener, 1 part of film-forming aid, 0.2 parts of preservative and 0.5 parts of antifreeze agent), 35 parts of organic film-forming substance, 20 parts of pearlescent powder (specifically 6.7 parts of pearlescent powder A and 13.3 parts of pearlescent powder B).

[0116] The preparation method of the above-mentioned water-based one-component hammer-grain artistic effect paint comprises the following steps:

[0117] Step S1: Add 42.2 parts of water and 0.2 parts of thickener into a container and stir at 500-800 rpm for 3-5 minutes;

[0118] Step S2: adding 0.5 parts of dispersant, 0.2 parts of wetting agent, 0.5 parts of antifreeze agent, 0.1 parts of mineral oil defoamer, and 1 part of film-forming aid; stirring at 500-800 rpm for 3-5 minutes;

[0119] Step S3: Step S5: Add 6.7 parts of 5-25um pearl powder and 13.3 parts of 20-80um pearl powder and stir at 1000-1500rpm for 15-25min to obtain a mixed solution;

[0120] Step S4: adding 35 parts of the emulsion and 0.1 parts of a silicone defoamer, and stirring at 500-800 rpm for 3-5 min;

[0121] Step S5: Add 0.2 parts of preservative and mildew preventer to obtain the finished product.

[0122] When using, spray it evenly onto the base material containing the primer through a spray gun, and then use a stainless steel rub board to rub it in circles. This step is called the "powder flipping" process, which makes the pearlescent powder unevenly arranged. At this time, the silicone defoamer will shrink, making the pearlescent powder appear uneven in thickness and gloss, forming a three-dimensional effect. Then when it is 80% to 90% dry, make another light circle "0". This step is called the "compacting" process. At this time, the oil shrinkage phenomenon is already very weak, so this step is to reduce the rubbing marks caused by the first step of rubbing and improve the feel.

[0123] Comparative Example 1

[0124] This example provides a coating, which is different from Example 1 only in that: in step S2, a lipophilic dispersing and wetting agent is selected, specifically Rohm and Haas hydrophobic 731A is selected as the dispersing agent, and BYK BYK349 ​​is selected as the wetting agent; the remaining steps and parameters are the same.

[0125] Comparative Example 2: In step S4 of Example 1, a hydrophilic silicone defoaming agent is selected, specifically NOPTAM2154 from Nopco; the remaining steps and parameters are the same.

[0126] Comparative Example 3: In step S3 of Example 1, all pearlescent powders are 5-25um pearlescent powders; the remaining steps and parameters are the same.

[0127] Comparative Example 4: In step S3 of Example 1, all pearlescent powders are 20-80 um pearlescent powders; the remaining steps and parameters are the same.

[0128] Comparative Example 5: In step S3 of Example 1, heavy calcium is used as the powder, and the remaining steps and parameters are the same.

[0129] Comparative Example 6: In the construction process of Example 1, no rubbing process is performed after spraying, and the remaining steps and parameters are the same.

[0130] Test Case

[0131] In this example, the performance of the products provided in the above embodiments and comparative examples is tested, wherein the three-dimensional effect and hammer effect are scored, and the closer the effect is to the two-component hammer paint, the higher the score, and the two-component hammer paint is defined as 8 points; the harmful substance content test method is: GB 18582-2020 "Limits of harmful substances in architectural wall coatings", and the freeze-thaw and low-temperature film-forming test method is: GB / T9756-2018 "Synthetic resin emulsion interior wall coatings". The test results are shown in Table 1.

[0132] Table 1

[0133]

[0134]

[0135] It can be seen from Example 1 and Comparative Examples 1 and 2 in Table 1 that when the hydrophilic and lipophilic materials in the formula are biased in one direction, there is no oil shrinkage phenomenon, resulting in a very weak hammer effect, and the rubbing coating process can only bring a part of the three-dimensional effect.

[0136] From comparative examples 3 / 4, we can see that if a single pearlescent powder is selected, the three-dimensional effect will decrease.

[0137] It can be seen from Comparative Example 5 that when there is no pearl powder, the three-dimensional and hammer texture effects are completely gone.

[0138] From Comparative Example 6, we can see that when the rubbing and coating process is not performed, it is difficult to make the pearlescent powder have a good three-dimensional and hammer-texture effect simply by relying on the "oil shrinkage" process.

[0139] In summary, the embodiments of the present invention provide a water-based one-component hammer-texture artistic effect paint and a preparation method thereof, which can solve the problems of high VOC, expensive raw materials of silver paste or silver powder, high production cost, which limits the application field of hammer-texture paint and requires two-component performance to achieve better performance in existing paints on the market.

[0140] Various embodiments of the present invention may be presented in the form of a range; it should be understood that the description in the form of a range is only for convenience and brevity, and should not be understood as a rigid limitation on the scope of the present invention; therefore, the range description should be considered to have specifically disclosed all possible sub-ranges and single numerical values ​​within the range. For example, the range description from 1 to 6 should be considered to have specifically disclosed sub-ranges, such as from 1 to 3, from 1 to 4, from 1 to 5, from 2 to 4, from 2 to 6, from 3 to 6, etc., as well as single numbers within the range, such as 1, 2, 3, 4, 5 and 6, which apply regardless of the range. In addition, whenever a numerical range is indicated herein, it is meant to include any cited number (fractional or integer) within the indicated range.

[0141] The foregoing is merely a specific embodiment of the present invention, which enables those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A water-based one-component hammer-texture artistic effect paint, characterized in that: The water-based one-component hammer-grain artistic effect paint comprises the following components in parts by weight: 16.6-42.2 parts of water, 2.7-8.5 parts of additives, 20-30 parts of pearl powder, 35-45 parts of organic film-forming substances; The pearl powder is composed of pearl powder A and pearl powder B with two different particle sizes, the particle size of pearl powder A is 5-25um, and the particle size of pearl powder B is 20-80um; The auxiliary agents include wetting agents, dispersants and defoamers; The HLB value of the wetting agent is 15 to 19; The HLB value of the dispersant is 15 to 19; The HLB value of the defoamer is 1 to 3; The defoaming agent includes a non-silicon defoaming agent and a silicon defoaming agent; the non-silicon defoaming agent is a mineral oil defoaming agent, and the silicon defoaming agent is polydimethylsiloxane.

2. The water-based one-component hammer-grain artistic effect paint according to claim 1, characterized in that: The water-based one-component hammer-grain artistic effect paint comprises the following components in parts by weight: 29.4 parts of water, 5.6 parts of additives, 40 parts of organic film-forming substances, and 25 parts of pearlescent powder.

3. The water-based one-component hammer-grain artistic effect paint according to claim 1, characterized in that: The auxiliary agent includes the following components in parts by weight: 0.2-0.4 parts of wetting agent, 0.5-1.2 parts of dispersant, 0.1-0.5 parts of non-silicon defoamer, 0.1-0.5 parts of silicon defoamer, 0.2-0.8 parts of thickener, 1-3 parts of film-forming auxiliary agent, 0.5-1.5 parts of antifreeze agent and 0.2-0.5 parts of preservative.

4. The water-based one-component hammer-grain artistic effect paint according to claim 3, characterized in that: The wetting agent includes polyoxyethylene ether or its derivatives; the dispersant is a hydrophilic polycarboxylate sodium salt type dispersant.

5. The water-based one-component hammer-texture artistic effect paint according to claim 3, characterized in that: The thickener includes hydrophobically modified hydroxyethyl cellulose, and the preservative includes isothiazolinones, formaldehyde and benzoimidazole.

6. The water-based one-component hammer-texture artistic effect paint according to claim 3, characterized in that: The film-forming aid comprises hexadecyl alcohol ester having a diester structure, and the antifreeze agent is polyethylene glycol.

7. The water-based one-component hammer-texture artistic effect paint according to claim 1, characterized in that: The organic film-forming substance is at least one of a styrene-acrylic emulsion including a copolymer emulsion of styrene and isooctyl acrylate and a copolymer emulsion of styrene and butyl acrylate.

8. A method for preparing a water-based one-component hammer-grain artistic effect paint according to any one of claims 3 to 7, characterized in that: The preparation method comprises the following steps: Stirring and mixing water and a thickener to obtain a first mixture; Adding a dispersant, a wetting agent, an antifreeze agent, a mineral oil defoamer and a film-forming aid to the first mixed material and stirring and mixing them to obtain a second mixed material; Adding pearl powder to the second mixed material and stirring and mixing to obtain a third mixed material; An organic film-forming substance and a silicon-based defoaming agent are added to the third mixed material and stirred and mixed, and then a bactericide and a mildewcide are added and stirred and mixed to obtain the water-based single-component hammer-grain artistic effect paint.

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