Water-based single-component full-matte self-drying skin-touch wall varnish and preparation method thereof

Abstract

The invention relates to a water-based single-component full-matt self-drying skin-feeling wall varnish and a preparation method thereof, and relates to the technical field of paints.The water-based single-component full-matt self-drying skin-feeling wall varnish is prepared from, by weight, 1.2-24.9 parts of water, 72.4-90.5 parts of modified potassium silicate-skin-feeling emulsion, 0.5-2 parts of organic microspheres and 2.2-6.3 parts of auxiliaries; the modified potassium silicate-skin feeling emulsion is composed of a skin feeling emulsion, potassium silicate and a silane coupling agent. By introducing the modified potassium silicate-skin feeling emulsion, the water-based single-component full-matte self-drying skin feeling art wall varnish is prepared, and the problems that an existing single-component skin feeling varnish is poor in skin feeling, high in glossiness and the like are effectively solved.

Description

Technical Field

[0001] The invention relates to the technical field of coatings, and in particular to a water-based single-component full-matte self-drying skin-feel wall varnish and a preparation method thereof. Background Art

[0002] At present, most of the varnishes used in architectural coatings on the market are mainly for the pursuit of a delicate and smooth feel, while varnish products with a special feel are extremely rare. The artistic effect of the wall often relies on artistic texture paint or feel paint to achieve, but unfortunately, after rolling the varnish, it is often covered with a thin film, which greatly reduces the original unique feel. Therefore, the market has an urgent need for a varnish product that can retain and enhance the special feel.

[0003] With the gradual rise of the light luxury style, traditional high-gloss finishes have gradually faded out of the market, replaced by 3-point gloss, 1-point gloss and even full matte surface treatments. Among them, full matte is highly favored because it has the lowest visual fatigue. However, matte powder is light and difficult to disperse, which often leads to uneven rolling and causes the problem of whitening of the wall.

[0004] In view of this, there is an urgent need to develop an innovative water-based, one-component, fully matte, self-drying, skin-feel artistic wall varnish to fill the gap in the market and meet consumers' dual pursuit of special feel and matte effect. Summary of the invention

[0005] In order to solve the above problems, the present invention provides a water-based single-component full-matte self-drying skin-feel wall varnish and a preparation method thereof.

[0006] In a first aspect, the present invention provides a water-based single-component full-matte self-drying skin-feel wall varnish, which comprises the following components in parts by weight: 1.2-24.9 parts of water, 72.4-90.5 parts of modified potassium silicate-skin-feel emulsion, 0.5-2 parts of organic microspheres, and 2.2-6.3 parts of additives;

[0007] The modified potassium silicate-skin feel emulsion consists of skin feel emulsion, potassium silicate and a silane coupling agent.

[0008] Furthermore, the water-based single-component fully matte self-drying skin-feel wall varnish includes the following components in parts by weight: 13.05 parts of water, 81.45 parts of modified potassium silicate-skin-feel emulsion, 1.25 parts of organic microspheres, and 4.25 parts of additives.

[0009] Furthermore, the weight ratio of the skin feel lotion, potassium silicate and silane coupling agent is 160:20:1.

[0010] Furthermore, the skin-feel emulsion is a polyurethane dispersion, and the modulus of the potassium silicate is 3.5-4.0.

[0011] Furthermore, the organic microspheres are organic silicon microspheres.

[0012] Furthermore, the water-based single-component full-matte self-drying skin-feel wall varnish also includes, by weight: 0.2-0.6 parts of bactericidal and mildew-proof agent, 0.5-1.2 parts of antifreeze agent, 0.5-1.5 parts of thickener, and 1-3 parts of film-forming aid.

[0013] Furthermore, the thickener is Dow's ASE-60; the film-forming aid includes C-12 and OE400 in a weight ratio of 1:1; and the bactericide and mildew preventer is selected from at least one of Kathon, BIT, 631 and MBS5050.

[0014] In a second aspect, the present invention provides a method for preparing the water-based one-component full-matte self-drying skin-feel wall varnish according to any one of the first aspects, the preparation method comprising the following steps:

[0015] Mixing the skin-feel emulsion, potassium silicate and a silane coupling agent to obtain a modified potassium silicate-skin-feel emulsion;

[0016] The modified potassium silicate-skin-feel emulsion and the remaining components in the water-based single-component full-matt self-drying skin-feel wall varnish are mixed to obtain the water-based single-component full-matt self-drying skin-feel wall varnish.

[0017] The above technical solution provided by the embodiment of the present invention has at least the following advantages compared with the prior art:

[0018] The embodiment of the present invention provides a water-based single-component full-matte self-drying skin-feel wall varnish and a preparation method thereof. The present invention prepares a water-based single-component full-matte self-drying skin-feel artistic wall varnish by introducing a modified potassium silicate-skin-feel emulsion, which effectively solves the problems of poor skin feel and high glossiness in existing single-component skin-feel varnishes. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] 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.

[0020] 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.

[0021] Figure 1 A schematic flow chart of a method for preparing a water-based, single-component, fully matte, self-drying, skin-feel wall varnish provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0022] 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.

[0023] 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.

[0024] On the one hand, very few of the current covers on the market have skin-feeling effects. Those that do have them are two-component or require UV / baking operations, which are extremely cumbersome and difficult to use on walls. Even single-component skin-feeling emulsions are abandoned due to poor performance, or they have good performance but poor skin-feeling, making it difficult to achieve all the properties at the same time.

[0025] On the other hand, the common matte varnish on the market turns white due to the use of matte powder, or is difficult to construct when paired with some matte curing agents. Even so, it is difficult to achieve a low gloss at every gloss angle.

[0026] In response to the above problems, the inventors have found through research: 1. If you simply use a high molecular weight emulsion (styrene acrylic, pure acrylic, silicone acrylic), it will form a continuous film during the emulsion film-forming process, thereby reducing the effect of the skin-feeling fluff. Therefore, if you want to make a single component with a skin-feeling fluffy effect, you need to use an inorganic film-forming agent with a small molecule structure - potassium silicate. The skin-feeling emulsion is modified by adding inorganic potassium silicate to have better performance without losing the skin-feeling effect. 2. Matte is achieved by combining silicone microspheres and utilizing the strong thixotropic effect of alkali swelling on the paint, and the different film-forming speeds of the emulsion by film-forming aids with different film-forming efficiencies, thereby forming microscopic "wrinkles", so that the paint film achieves a completely matte effect.

[0027] To solve the above problems, the core technical concept of the present invention at least includes: preparing a premixed solution, adding a silane coupling agent to a portion of potassium silicate and a skin-feel emulsion while fully stirring to form a modified potassium silicate-skin-feel emulsion, and finally mixing evenly with water, an alkali-swellable thickener, organic microspheres, an antifreeze agent, and a bactericidal preservative to obtain a water-based single-component fully matte self-drying skin-feel artistic wall varnish.

[0028] The technical solution provided by the present invention is specifically as follows:

[0029] In a first aspect, the present invention provides a water-based single-component full-matte self-drying skin-feel wall varnish, which comprises the following components in parts by weight: 1.2-24.9 parts of water, 72.4-90.5 parts of modified potassium silicate-skin-feel emulsion, 0.5-2 parts of organic microspheres, and 2.2-6.3 parts of additives;

[0030] The modified potassium silicate-skin feel emulsion consists of skin feel emulsion, potassium silicate and a silane coupling agent.

[0031] In some specific embodiments, the water-based one-component full-matte self-drying skin-feel wall varnish includes the following components, measured in parts by weight: 13.05 parts of water, 81.45 parts of modified potassium silicate-skin-feel emulsion, 1.25 parts of organic microspheres, and 4.25 parts of additives.

[0032] In some specific embodiments, the weight ratio of the skin feel lotion, potassium silicate and silane coupling agent is 160:20:1.

[0033] In some specific embodiments, the skin-feel emulsion is a polyurethane dispersion, preferably PD-804 from Starr; the modulus of the potassium silicate is 3.5-4.0, preferably K100 from Shanghai Orun Chemical.

[0034] In some specific embodiments, the organic microspheres are organosilicon microspheres, preferably 3100 produced by Foshan Shierli New Materials Co., Ltd.

[0035] In some specific embodiments, the water-based one-component full-matte self-drying skin-feel wall varnish further includes, by weight: 0.2-0.6 parts of bactericidal and mildew-proof agent, 0.5-1.2 parts of antifreeze agent, 0.5-1.5 parts of thickener, and 1-3 parts of film-forming aid; wherein the thickener is a pure low-shear alkali swelling thickener, preferably Dow's ASE-60; the film-forming aid is a mixture of C-12 and OE400, with a ratio of 1:1; the bactericidal and mildew-proof agent is selected from at least one of Kathon, BIT, 631 and MBS5050.

[0036] In the second aspect, based on the same inventive concept, the present invention provides a method for preparing the water-based one-component full-matte self-drying skin-feel wall varnish according to any one of the first aspects, such as Figure 1 As shown, the preparation method comprises the following steps:

[0037] Mixing the skin-feel emulsion, potassium silicate and a silane coupling agent to obtain a modified potassium silicate-skin-feel emulsion;

[0038] The modified potassium silicate-skin-feel emulsion and the remaining components in the water-based single-component full-matt self-drying skin-feel wall varnish are mixed to obtain the water-based single-component full-matt self-drying skin-feel wall varnish.

[0039] In some specific embodiments, for example, the above preparation method includes the following process:

[0040] Step S1: first, put 80 parts of skin-feeling lotion, 10 parts of potassium silicate and 0.5 parts of silane coupling agent into a container, stir at 70-80° C. and 800-1200 rpm for 20-30 min to obtain a modified potassium silicate-skin-feeling lotion, and place it for 12 hours for standby use;

[0041] Step S2: adding 1 part of film-forming aid A and 1 part of film-forming aid B to the modified potassium silicate-skin feel emulsion, stirring at 500-800 rpm for 10-15 min, until the modified potassium silicate-skin feel emulsion is fully swollen;

[0042] Step S3: Add 4 parts of water, 1 part of organic microspheres, 1 part of pure low-shear ASE thickener, 0.5 parts of bactericide and mildew preventer, and 1 part of antifreeze into a container, and stir at 500-800 rpm for 5-10 minutes to obtain the finished product.

[0043] It should be noted that the components and raw materials involved in the water-based one-component full-matte self-drying skin-feel wall varnish and its preparation method provided by 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 processing technology of water-based one-component full-matte self-drying skin-feel wall varnish or directly using existing equipment, and the present invention document will not repeat them one by one.

[0044] 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.

[0045] The main raw material information involved in the following examples and comparative examples is as follows:

[0046] Skin feel emulsion: polyurethane dispersion, PD-804 purchased from Stahl;

[0047] Potassium silicate: modulus 3.5-4.0, purchased from Shanghai Orun Chemical K100;

[0048] Silane coupling agent: specifically A-171, purchased from Huaian Heyuan Chemical Co., Ltd.

[0049] Organic microspheres: Organic silicon microspheres, purchased from Foshan Shierli New Materials Co., Ltd. 3100;

[0050] Bactericidal and mildew-proof agent: MBS5050, purchased from Guangzhou Duwei Trading Co., Ltd.

[0051] Antifreeze: specifically ethylene glycol, purchased from Foshan Hongchuan New Materials Co., Ltd.

[0052] Thickener: Pure low shear alkali swelling thickener, ASE-60 purchased from Dow.

[0053] Coagulant A: C-12, purchased from Qilu Eastman Fine Chemical Co., Ltd.

[0054] Film-forming aid B: OE400, purchased from Foshan Meiren Chemical Trading Co., Ltd.

[0055] Example 1

[0056] This example provides a water-based single-component full-matte self-drying skin-feel wall varnish, which includes the following components in parts by weight: 1.2 parts of water, 90.5 parts of modified potassium silicate-skin-feel emulsion, 2 parts of organic microspheres, 0.6 parts of bactericidal and mildew-proof agent, 1.2 parts of antifreeze agent, 1.5 parts of thickener, and 3 parts of film-forming aid;

[0057] Wherein, the modified potassium silicate-skin feel emulsion is composed of skin feel emulsion, potassium silicate and silane coupling agent in a weight ratio of 160:20:1, specifically 80 parts by weight of skin feel emulsion, 10 parts of potassium silicate and 0.5 parts of silane coupling agent;

[0058] The film-forming aid includes a film-forming aid A and a film-forming aid B in a weight ratio of 1:1, specifically 1.5 parts by weight of the film-forming aid A and 1.5 parts by weight of the film-forming aid B.

[0059] The preparation method of the above-mentioned water-based single-component full-matte self-drying skin-feel wall varnish comprises the following steps:

[0060] Step S1: first, in a container, put 80 parts of skin-feeling lotion, 10 parts of potassium silicate and 0.5 parts of silane coupling agent, stir at 75° C. and 1000 rpm for 25 min to obtain a modified potassium silicate-skin-feeling lotion, and place it for 12 hours for standby use;

[0061] Step S2: adding 1.5 parts of film-forming aid A and 1.5 parts of film-forming aid B to the modified potassium silicate-skin feel emulsion, stirring at 600 rpm for 12 min, until the modified potassium silicate-skin feel emulsion is fully swollen;

[0062] Step S3: Add 1.2 parts of water, 2 parts of organic microspheres, 1.5 parts of pure low-shear ASE thickener, 0.6 parts of bactericide and mildew preventer, and 1.2 parts of antifreeze into a container, and stir at 600 rpm for 8 minutes to obtain a finished product.

[0063] Example 2

[0064] This example provides a water-based single-component full-matte self-drying skin-feel wall varnish, which includes the following components in parts by weight: 13.05 parts of water, 81.45 parts of modified potassium silicate-skin-feel emulsion, 1.25 parts of organic microspheres, 0.4 parts of bactericidal and mildew-proof agent, 0.85 parts of antifreeze agent, 1 part of thickener, and 2 parts of film-forming aid;

[0065] Wherein, the modified potassium silicate-skin feel emulsion is composed of skin feel emulsion, potassium silicate and silane coupling agent in a weight ratio of 160:20:1, specifically 72 parts by weight of skin feel emulsion, 9 parts of potassium silicate and 0.45 parts of silane coupling agent;

[0066] The film-forming aid comprises a film-forming aid A and a film-forming aid B in a weight ratio of 1:1, specifically 1 part by weight of the film-forming aid A and 1 part by weight of the film-forming aid B.

[0067] The preparation method of the above-mentioned water-based single-component full-matte self-drying skin-feel wall varnish comprises the following steps:

[0068] Step S1: first, in a container, put 80 parts of skin-feeling lotion, 10 parts of potassium silicate and 0.5 parts of silane coupling agent, stir at 75° C. and 1000 rpm for 25 min to obtain a modified potassium silicate-skin-feeling lotion, and place it for 12 hours for standby use;

[0069] Step S2: adding 1 part of film-forming aid A and 1 part of film-forming aid B to the modified potassium silicate-skin feel emulsion, stirring at 600 rpm for 12 min, until the modified potassium silicate-skin feel emulsion is fully swollen;

[0070] Step S3: Add 13.05 parts of water, 1.25 parts of organic microspheres, 1 part of pure low-shear ASE thickener, 0.4 parts of bactericide and mildew preventer, and 0.85 parts of antifreeze agent into a container, and stir at 600 rpm for 8 minutes to obtain a finished product.

[0071] Example 3

[0072] This example provides a water-based single-component full-matte self-drying skin-feel wall varnish, which includes the following components in parts by weight: 24.9 parts of water, 72.4 parts of modified potassium silicate-skin-feel emulsion, 0.5 parts of organic microspheres, 0.2 parts of bactericidal and mildew-proof agent, 0.5 parts of antifreeze agent, 0.5 parts of thickener, and 1 part of film-forming aid;

[0073] Wherein, the modified potassium silicate-skin feel emulsion is composed of a skin feel emulsion, potassium silicate and a silane coupling agent in a weight ratio of 160:20:1, specifically 64 parts by weight of skin feel emulsion, 8 parts of potassium silicate and 0.4 parts of silane coupling agent;

[0074] The film-forming aid includes a film-forming aid A and a film-forming aid B in a weight ratio of 1:1, specifically 0.5 parts by weight of the film-forming aid A and 0.5 parts by weight of the film-forming aid B.

[0075] The preparation method of the above-mentioned water-based single-component full-matte self-drying skin-feel wall varnish comprises the following steps:

[0076] Step S1: first, in a container, add 64 parts of skin-feeling lotion, 8 parts of potassium silicate and 0.4 parts of silane coupling agent, stir at 75° C. and 1000 rpm for 25 min to obtain a modified potassium silicate-skin-feeling lotion, and place it for 12 hours for standby use;

[0077] Step S2: adding 0.5 parts of film-forming aid A and 0.5 parts of film-forming aid B to the modified potassium silicate-skin feel emulsion, stirring at 600 rpm for 12 minutes, until the modified potassium silicate-skin feel emulsion is fully swollen;

[0078] Step S3: Add 24.9 parts of water, 0.5 parts of organic microspheres, 0.5 parts of pure low-shear ASE thickener, 0.2 parts of bactericide and mildew preventer, and 0.5 parts of antifreeze agent into a container, and stir at 600 rpm for 8 minutes to obtain a finished product.

[0079] Comparative Example 1

[0080] This example provides a water-based one-component full-matte self-drying skin-feel wall varnish and a preparation method thereof. Compared with Example 1, the only difference is that: Comparative Example 1 is based on Example 1, and step S1 does not add potassium silicate and silane coupling agent, and all are replaced by skin-feel emulsion.

[0081] Comparative Example 2

[0082] This example provides a water-based one-component full-matte self-drying skin-feel wall varnish and a preparation method thereof. Compared with Example 1, the only difference is that: Comparative Example 2 is based on Example 1, and step S1 replaces potassium silicate and silane coupling agent with polymer emulsion BASF338.

[0083] Comparative Example 3

[0084] This example provides a water-based one-component full-matte self-drying skin-feel wall varnish and a preparation method thereof. Compared with Example 1, the only difference is that: Comparative Example 3 is based on Example 1, and the film-forming aid B in step S2 is replaced with film-forming aid A.

[0085] Comparative Example 4

[0086] This example provides a water-based one-component full-matte self-drying skin-feel wall varnish and a preparation method thereof. Compared with Example 1, the only difference is that: Comparative Example 4 is based on Example 1, and the film-forming aid A in step S2 is replaced with film-forming aid B.

[0087] Comparative Example 5

[0088] This example provides a water-based one-component full-matte self-drying skin-feel wall varnish and a preparation method thereof. Compared with Example 1, the only difference is that: Comparative Example 5 is based on Example 1, and organic microspheres are not added in step S3, but water is used instead.

[0089] Comparative Example 6

[0090] This example provides a water-based one-component full-matte self-drying skin-feel wall varnish and a preparation method thereof. Compared with Example 1, the only difference is that: Comparative Example 6 is based on Example 1, and organic microspheres are not added in step S3, and an equal amount is replaced with matte powder.

[0091] Comparative Example 7

[0092] This example provides a water-based one-component full-matte self-drying skin-feel wall varnish and a preparation method thereof. Compared with Example 1, the only difference is that: Comparative Example 7 is based on Example 1, and no ASE thickener is added in step S3, and an equal amount is replaced with water.

[0093] Comparative Example 8

[0094] This example provides a water-based one-component full-matte self-drying skin-feel wall varnish and a preparation method thereof. Compared with Example 1, the only difference is that: Comparative Example 8 is based on Example 1, and ASE thickeners and organic microspheres are not added in step S3, and water is used instead.

[0095] Comparative Example 9

[0096] This example provides a water-based one-component full-matte self-drying skin-feel wall varnish and a preparation method thereof. Compared with Example 1, the only difference is that: Comparative Example 9 is based on Example 1, and the amount of potassium silicate in step S1 is increased from 10 parts to 20 parts.

[0097] Comparative Example 10

[0098] This example provides a water-based one-component full-matte self-drying skin-feel wall varnish and a preparation method thereof. Compared with Example 1, the only difference is that: Comparative Example 9 is based on Example 1, and the amount of potassium silicate in step S1 is reduced from 10 parts to 5 parts.

[0099] Test Case

[0100] In this example, the performance of the water-based one-component full-matte self-drying skin-feel wall varnish obtained in the above examples and comparative examples is tested. The test results of specific Example 1 and Comparative Examples 1 to 10 are shown in Table 1; the test results of Example 2 and Example 3 are shown in Table 2.

[0101] Table 1

[0102]

[0103]

[0104] Table 2

[0105]

[0106] From Table 1, we can see that:

[0107] By comparing Example 1 with Comparative Example 1, it is found that the skin-feel lotion in Example 1 has enhanced adhesion and water resistance due to the introduction of potassium silicate and silane coupling agent.

[0108] It can be seen from Comparative Example 2 that the use of a high molecular cross-linked emulsion can improve its performance but seriously affect the feel of the skin emulsion.

[0109] From Comparative Examples 3 and 4, it can be seen that when the film-forming aid is used alone, since the film-forming efficiency of the film-forming aid on the emulsion is the same, its drying speed is also uniform, making the paint film relatively flat; while when mixed, the film-forming rates of A and B are different, which will make the paint film drying speed different, resulting in uneven stress, forming microscopic "wrinkles", enhancing diffuse reflection, and thus reducing gloss. Combined with Comparative Examples 5, 7 and 8, it can be seen that when these materials are used together, the three gloss angles can be well achieved to be less than 5°, forming a full matte effect. However, the use of matte powder will cause the problem of construction blurring and reduced water resistance.

[0110] It can be seen from comparative examples 9 / 10 that if the amount of potassium silicate is too much, the small particles formed will affect the velvety feel of the paint film, and if the amount is too little, the performance of the paint film cannot be effectively improved.

[0111] 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.

[0112] 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 full matte self-drying skin-feel wall varnish, characterized in that: The water-based single-component fully matte self-drying skin-feel wall varnish comprises the following components in parts by weight: 1.2-24.9 parts of water, 72.4-90.5 parts of modified potassium silicate-skin-feel emulsion, 0.5-2 parts of organic microspheres, and 2.2-6.3 parts of additives; The modified potassium silicate-skin feel emulsion consists of skin feel emulsion, potassium silicate and a silane coupling agent.

2. The water-based one-component full-matte self-drying skin-feel wall varnish according to claim 1, characterized in that: The water-based single-component fully matte self-drying skin-feel wall varnish comprises the following components in parts by weight: 13.05 parts of water, 81.45 parts of modified potassium silicate-skin-feel emulsion, 1.25 parts of organic microspheres, and 4.25 parts of additives.

3. The water-based one-component full-matte self-drying skin-feel wall varnish according to claim 1, characterized in that: The weight ratio of the skin feel lotion, potassium silicate and silane coupling agent is 160:20:

1.

4. The water-based one-component full-matte self-drying skin-feel wall varnish according to claim 3, characterized in that: The skin-feeling emulsion is a polyurethane dispersion, and the modulus of the potassium silicate is 3.5-4.

0.

5. The water-based one-component full-matte self-drying skin-feel wall varnish according to claim 1, characterized in that: The organic microspheres are organic silicon microspheres.

6. The water-based one-component full-matte self-drying skin-feel wall varnish according to any one of claims 1 to 5, characterized in that: In parts by weight, the water-based single-component full-matte self-drying skin-feel wall varnish also includes: 0.2-0.6 parts of bactericide and mildew preventer, 0.5-1.2 parts of antifreeze agent, 0.5-1.5 parts of thickener, and 1-3 parts of film-forming aid.

7. The water-based one-component full-matte self-drying skin-feel wall varnish according to claim 6, characterized in that: The thickener is Dow's ASE-60; the film-forming aid includes C-12 and OE400 in a weight ratio of 1:1; the bactericide and mildew preventer is selected from at least one of Kathon, BIT, 631 and MBS5050.

8. A method for preparing the water-based one-component full-matte self-drying skin-feel wall varnish according to any one of claims 1 to 7, characterized in that: The preparation method comprises the following steps: Mixing the skin-feel emulsion, potassium silicate and a silane coupling agent to obtain a modified potassium silicate-skin-feel emulsion; The modified potassium silicate-skin-feel emulsion and the remaining components in the water-based single-component full-matt self-drying skin-feel wall varnish are mixed to obtain the water-based single-component full-matt self-drying skin-feel wall varnish.

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