阅读说明：本技术 一种超疏水抗污内墙乳胶漆及其使用方法 (Super-hydrophobic anti-fouling interior wall latex paint and use method thereof ) 是由 许栋 李秋平 陈锐婕 仇丹 薛桂有 余骏 唐祖龙 徐满连 于 2020-12-18 设计创作，主要内容包括：本发明公开了一种超疏水抗污内墙乳胶漆,其特征在于：包括有A组分和B组分；按质量份数计,A组分包括有以下组分：改性苯丙乳液30～50份、有机硅乳液5～15份、颜填料22～53份、助剂3.1～6.7份、水10～20份、B组分为异氰酸酯固化剂。本发明还公开了一种上述超疏水抗污内墙乳胶漆的使用方法。与现有技术相比,本发明的超疏水抗污内墙乳胶漆防水、耐污、耐擦洗性能和韧性好。(The invention discloses a super-hydrophobic anti-fouling interior wall latex paint, which is characterized in that: comprises a component A and a component B; the component A comprises the following components in parts by weight: 30-50 parts of modified styrene-acrylic emulsion, 5-15 parts of organic silicon emulsion, 22-53 parts of pigment and filler, 3.1-6.7 parts of auxiliary agent, 10-20 parts of water and the component B serving as an isocyanate curing agent. The invention also discloses a use method of the super-hydrophobic anti-fouling interior wall latex paint. Compared with the prior art, the super-hydrophobic anti-fouling interior wall latex paint disclosed by the invention has the advantages of good water resistance, stain resistance, scrubbing resistance and toughness.)

1. The super-hydrophobic anti-fouling interior wall latex paint is characterized in that: comprises a component A and a component B;

the component A comprises the following components in parts by weight:

the component B is an isocyanate curing agent;

the modified styrene-acrylic emulsion is prepared by the following preparation method:

(1) mixing 160-230 parts of water, 0.3-1.1 part of sodium bicarbonate, 5-8 parts of octyl phenol polyoxyethylene ether and 10-15 parts of sodium dodecyl sulfate with a mixed monomer to prepare a pre-emulsion;

the mixed monomer comprises 150-200 parts of styrene, 230-290 parts of butyl acrylate, 10-20 parts of methyl methacrylate, 15-25 parts of methyl propylene hydroxyethyl and 5-15 parts of methacrylic acid;

(2) dissolving 2-4 parts of ammonium persulfate in 50-80 parts of water by mass to prepare an initiator solution;

(3) dissolving 5-10 parts by weight of sodium polymethacrylate in 40-60 parts by weight of water to prepare a protective colloid solution;

(4) adding 150-250 parts of water, all protective colloid solution and 50-80 parts of pre-emulsion into a reaction kettle, heating, adding 30-40 parts of initiator solution at 60-80 ℃, mixing, and initiating polymerization at 70-90 ℃ for 10-30 min to prepare seed emulsion;

(5) and mixing the residual pre-emulsion with 60-150 parts of elastomer block prepolymer emulsion and 10-60 parts of siloxane prepolymer emulsion, then gradually adding the mixture and the residual initiator solution into the seed emulsion of the polymerization reaction kettle respectively until the reaction is finished, continuously keeping the reaction temperature for 1-2 hours, cooling and filtering to obtain the modified styrene-acrylic emulsion.

2. The superhydrophobic antifouling interior wall latex paint of claim 1, wherein: the elastomer block prepolymer emulsion is at least one of allyl alcohol end-capped polyether polyol prepolymer emulsion, allyl epoxy end-capped polyether emulsion, acrylate modified polyurethane emulsion and allyl ether modified polyurethane emulsion elastomer block;

the siloxane prepolymer emulsion is at least one of vinyl-terminated polysiloxane prepolymer emulsion, allyl-terminated polysiloxane prepolymer emulsion and allyl-terminated polysiloxane polyurethane prepolymer emulsion;

the organic silicon emulsion is prepared from at least one active organic siloxane of hydroxyl-terminated polydimethylsiloxane, amino-terminated polydimethylsiloxane, epoxy-terminated polydimethylsiloxane and quaternary ammonium salt modified polydimethylsiloxane.

3. The superhydrophobic antifouling interior wall latex paint of claim 1, wherein: the solid content of the organic silicon emulsion is 55-65%.

4. The superhydrophobic antifouling interior wall latex paint of claim 1, wherein: the pigment and filler is at least one of titanium dioxide, kaolin, diatomite, calcium carbonate, barium sulfate and cellulose ether.

5. The superhydrophobic antifouling interior wall latex paint of claim 4, wherein: the pigment and filler comprises the following components in parts by weight:

6. the superhydrophobic antifouling interior wall latex paint of any one of claims 1-5, characterized in that: the auxiliary agent is at least one of a dispersant, a defoaming agent, a thickening agent, a flatting agent, a hydrophobic agent, a preservative, a bactericide and a film-forming auxiliary agent.

7. The superhydrophobic antifouling interior wall latex paint of claim 6, wherein: the auxiliary agent comprises the following components in parts by weight:

8. the superhydrophobic antifouling interior wall latex paint of claim 7, wherein: the A component of the super-hydrophobic anti-fouling interior wall latex paint is prepared by the following preparation method:

(1) dispersing the flatting agent and the dispersing agent in water, uniformly stirring for 3-5 minutes, and then adding a defoaming agent to defoam to obtain clear liquid;

(2) adding cellulose ether for full swelling, adding other pigments and fillers after the cellulose ether is viscous, dispersing at a high speed of 1000-2000 rpm for 20-50 min until the fineness is not more than 30um, and adding an amine neutralizer until the pH value is 9 to obtain slurry;

(3) sequentially adding the modified styrene-acrylic emulsion, the organic silicon emulsion, the after-compensating defoaming agent, the hydrophobic agent, the preservative, the bactericide and the film-forming auxiliary agent into the slurry and uniformly stirring;

(4) and finally, adding a thickening agent, adjusting the viscosity, stirring for 10-30 min, and filtering to obtain the component A of the required super-hydrophobic anti-fouling interior wall latex paint.

9. The superhydrophobic antifouling interior wall latex paint of any one of claims 1-5, characterized in that: the isocyanate curing agent is at least one of hydrophilic modified polyisocyanate curing agents based on HDI, TMDI, IPDI, XDI, IPDI, HMDI or HTDI.

10. The use of the superhydrophobic antifouling interior wall latex paint of any one of claims 1-9, characterized by comprising the steps of: mixing the component A and the component B according to the weight ratio of 15-40: 1, adding 15-30% of clear water for dilution, and uniformly stirring for use.

Technical Field

The invention relates to the field of emulsion paints, in particular to a super-hydrophobic anti-fouling interior wall emulsion paint and a using method thereof.

Background

The emulsion paint is water dispersive paint, which is prepared with synthetic resin emulsion as base material, stuffing, and assistants. The emulsion paint has the advantages different from the traditional paint, such as easy painting, good recoatability, water resistance, air permeability and humidity adjustment of a paint film and the like. The quality of interior wall latex paint as an important component of interior coatings is also a hot topic of great interest. As a place where people live at high activities, the wall is inevitably polluted, so that the attractiveness is influenced, and when wet weather occurs, the wall is prone to being mildewed and becoming yellow due to water accumulation and water absorption on the wall, and the like, so that the visual aesthetic feeling is greatly influenced, and the phenomenon is more common in wet areas in the south.

For example, patent application No. cn200810079201.x (publication No. CN101338163A) discloses an elastic latex paint, which is prepared by dispersing and mixing raw materials such as deionized water, adipic dihydrazide, hydroxyethyl cellulose, propylene glycol, 215 titanium dioxide, wollastonite powder, kaolin, 800-mesh coarse whiting, aqueous fluorocarbon resin, styrene-acrylic emulsion, elastic emulsion, and the like. The elastic latex paint can be brushed, rolled and sprayed, has good elongation, has certain breakthrough in stain resistance and hydrophobicity, and has the advantages of water resistance, air permeability, strong stain resistance, alkali resistance, acid resistance and lasting weather resistance.

However, the improvement of the latex paint mainly focuses on the selection of the auxiliary agent, the compatibility between the auxiliary agent and the base material is poor, the non-uniformity of the modification can influence the performance of the material, the performance improvement effect is limited,

disclosure of Invention

The first technical problem to be solved by the invention is to provide a super-hydrophobic anti-fouling interior wall latex paint with good waterproof, anti-fouling, anti-scrubbing performance and toughness aiming at the current situation of the prior art.

The second technical problem to be solved by the invention is to provide a using method of the super-hydrophobic anti-fouling interior wall latex paint.

The technical scheme adopted by the invention for solving the first technical problem is as follows: the super-hydrophobic anti-fouling interior wall latex paint is characterized in that: comprises a component A and a component B;

the component A comprises the following components in parts by weight:

the component B is an isocyanate curing agent;

the modified styrene-acrylic emulsion is prepared by the following preparation method:

(1) mixing 160-230 parts of water, 0.3-1.1 part of sodium bicarbonate, 5-8 parts of octyl phenol polyoxyethylene ether and 10-15 parts of sodium dodecyl sulfate with a mixed monomer to prepare a pre-emulsion;

the mixed monomer comprises 150-200 parts of styrene, 230-290 parts of butyl acrylate, 10-20 parts of methyl methacrylate, 15-25 parts of methyl propylene hydroxyethyl and 5-15 parts of methacrylic acid;

(2) dissolving 2-4 parts of ammonium persulfate in 50-80 parts of water by mass to prepare an initiator solution;

(3) dissolving 5-10 parts by weight of sodium polymethacrylate in 40-60 parts by weight of water to prepare a protective colloid solution;

(4) adding 150-250 parts of water, all protective colloid solution and 50-80 parts of pre-emulsion into a reaction kettle, heating, adding 30-40 parts of initiator solution at 60-80 ℃, mixing, and initiating polymerization at 70-90 ℃ for 10-30 min to prepare seed emulsion;

(5) and mixing the residual pre-emulsion with 60-150 parts of elastomer block prepolymer emulsion and 10-60 parts of siloxane prepolymer emulsion, then gradually adding the mixture and the residual initiator solution into the seed emulsion of the polymerization reaction kettle respectively until the reaction is finished, continuously keeping the reaction temperature for 1-2 hours, cooling and filtering to obtain the modified styrene-acrylic emulsion.

Preferably, the elastomer block prepolymer emulsion is at least one of an allyl alcohol-terminated polyether polyol prepolymer emulsion, an allyl epoxy-terminated polyether emulsion, an acrylate modified polyurethane emulsion and an allyl ether modified polyurethane emulsion elastomer block, and the addition amount of the elastomer block prepolymer emulsion is 3-8% of the total polymerization unit number of the modified styrene-acrylic emulsion polymer;

the siloxane prepolymer emulsion is at least one of vinyl-terminated polysiloxane prepolymer emulsion, allyl-terminated polysiloxane prepolymer emulsion and allyl-terminated polysiloxane polyurethane prepolymer emulsion, and the addition amount of the siloxane prepolymer emulsion is 0.5-3% of the total polymerization units of the modified styrene-acrylic emulsion polymer;

the organic silicon emulsion is prepared from at least one active organic siloxane of hydroxyl-terminated polydimethylsiloxane, amino-terminated polydimethylsiloxane, epoxy-terminated polydimethylsiloxane and quaternary ammonium salt modified polydimethylsiloxane.

Preferably, the solid content of the organic silicon emulsion is 55-65%.

Preferably, the pigment and filler is at least one of titanium dioxide, kaolin, diatomite, calcium carbonate, barium sulfate and cellulose ether.

Further, the pigment and filler comprises the following components in parts by weight:

preferably, the auxiliary agent is at least one of a dispersing agent, a defoaming agent, a thickening agent, a leveling agent, a hydrophobic agent, a preservative, a bactericide and a film-forming auxiliary agent.

Further, the auxiliary agent comprises the following components in parts by weight:

still further, the A component of the super-hydrophobic anti-fouling interior wall latex paint is prepared by the following preparation method:

(1) dispersing the flatting agent and the dispersing agent in water, uniformly stirring for 3-5 minutes, and then adding a defoaming agent to defoam to obtain clear liquid;

(2) adding cellulose ether for full swelling, adding other pigments and fillers after the cellulose ether is viscous, dispersing at a high speed of 1000-2000 rpm for 20-50 min until the fineness is not more than 30um, and adding an amine neutralizer until the pH value is 9 to obtain slurry;

(3) sequentially adding the modified styrene-acrylic emulsion, the organic silicon emulsion, the after-compensating defoaming agent, the hydrophobic agent, the preservative, the bactericide and the film-forming auxiliary agent into the slurry and uniformly stirring;

(4) and finally, adding a thickening agent, adjusting the viscosity, stirring for 10-30 min, and filtering to obtain the component A of the required super-hydrophobic anti-fouling interior wall latex paint.

Preferably, the isocyanate curing agent is at least one of hydrophilic modified polyisocyanate curing agents based on HDI, TMDI, IPDI, XDI, IPDI, HMDI or HTDI.

The technical scheme adopted by the invention for solving the second technical problem is as follows: the use method of the superhydrophobic antifouling interior wall latex paint is characterized by comprising the following steps: mixing the component A and the component B according to the weight ratio of 15-40: 1, adding 15-30% of clear water for dilution, and uniformly stirring for use.

Compared with the prior art, the invention has the advantages that: the styrene-acrylic emulsion based on the common modification of the polysiloxane block and the elastomer block can effectively enhance the crosslinking degree of a coating film by the matching use of the organic silicon emulsion and the isocyanate curing agent, so that the hydrophobic stain resistance, the flexibility and the scrub resistance of the coating film are greatly improved.

Detailed Description

The present invention will be described in further detail with reference to examples.

Example 1:

firstly, preparing a modified styrene-acrylic emulsion:

(1) according to the mass parts, 160 parts of water, 0.3 part of sodium bicarbonate, 5 parts of octyl phenol polyoxyethylene ether, 10 parts of lauryl sodium sulfate and mixed monomers are mixed to prepare pre-emulsion;

the mixed monomer comprises 150 parts of styrene, 230 parts of butyl acrylate, 10 parts of methyl methacrylate, 15 parts of methyl propylene hydroxyethyl and 5 parts of methacrylic acid;

(2) dissolving 2 parts of ammonium persulfate in 50 parts of water to prepare an initiator solution;

(3) dissolving 5 parts of sodium polymethacrylate in 40 parts of water according to parts by weight to prepare a protective colloid solution;

(4) adding 150 parts of water, all protective colloid solution and 50 parts of pre-emulsion into a reaction kettle, heating, adding 30 parts of initiator solution at 60 ℃, mixing, and initiating polymerization at 70 ℃ for 10min to prepare seed emulsion;

(5) mixing the residual pre-emulsion with 60 parts of allyl alcohol-terminated polyether polyol prepolymer emulsion and 10 parts of vinyl-terminated polysiloxane prepolymer emulsion, gradually adding the mixture and the residual initiator solution into the seed emulsion of the polymerization reaction kettle respectively until the reaction is finished, continuously keeping the reaction temperature for 1h, cooling, and filtering by using 100-150-mesh filter cloth to obtain the modified styrene-acrylic emulsion;

secondly, preparing the component A:

(1) dispersing 0.3 part of flatting agent and 0.5 part of dispersing agent in 10 parts of water, uniformly stirring for 3 minutes, and then adding 0.1 part of defoaming agent to defoam to obtain clear liquid;

(2) adding 1 part of cellulose ether for full swelling, adding 10 parts of titanium dioxide, 5 parts of kaolin, 2 parts of diatomite, 1 part of calcium carbonate and 3 parts of barium sulfate after thickening, dispersing at a high speed of 1000rpm for 20min until the detection fineness is not more than 30um, and then adding an amine neutralizer until the pH value is 9 to obtain slurry;

(3) then sequentially adding 30 parts of modified styrene-acrylic emulsion, 5 parts of organic silicon emulsion with the solid content of 55-65% prepared from hydroxyl-terminated polydimethylsiloxane, 0.1 part of defoaming agent, 1 part of hydrophobing agent, 0.2 part of preservative, 0.2 part of bactericide and 0.5 part of film-forming auxiliary agent into the slurry and uniformly stirring;

(4) finally, 0.2 part of thickening agent is added, the viscosity is adjusted, the mixture is stirred for 10min and filtered, and the component A of the required super-hydrophobic anti-fouling interior wall latex paint is obtained;

thirdly, preparing a component B: taking an HDI-based hydrophilic modified polyisocyanate curing agent as a component B;

fourthly, the use method of the super-hydrophobic anti-fouling interior wall latex paint comprises the following steps: mixing A component and B componentMixing according to the weight ratio of 15:1, then adding 15% of clear water for dilution, and uniformly stirring for use; the putty for the inner wall is leveled and polished, and then construction is carried out, and water-based inner wall primer can be added for reinforcement according to requirements; the rolling, spraying and brushing process construction can be adopted, and the requirements are uniform, brush leakage-free and accumulation-free; the dosage is as follows: 0.35kg/m²The actual usage is affected by the conditions of the base layer; during construction, cross spraying or brushing is carried out from top to bottom and left and right from the center in the range which can be sprayed or brushed, and the construction is carried out from top to bottom for the last time so as to obtain the same refractive index; the surface of the coating is dried for 50min/25 ℃, the actual drying is carried out for 48h/25 ℃, and the recoating time is at least 24 hours; after about 10 days of maintenance, the film is completely formed and the best adhesive force state is achieved; the tool is cleaned with clean water immediately after use.

Example 2:

firstly, preparing a modified styrene-acrylic emulsion:

(1) mixing 230 parts of water, 1.1 parts of sodium bicarbonate, 8 parts of octyl phenol polyoxyethylene ether, 15 parts of lauryl sodium sulfate and a mixed monomer to prepare a pre-emulsion;

the mixed monomer comprises 200 parts of styrene, 290 parts of butyl acrylate, 20 parts of methyl methacrylate, 25 parts of methyl propylene hydroxyethyl and 15 parts of methacrylic acid;

(2) dissolving 4 parts of ammonium persulfate in 80 parts of water by mass to prepare an initiator solution;

(3) dissolving 10 parts by weight of sodium polymethacrylate in 60 parts by weight of water to prepare a protective colloid solution;

(4) adding 250 parts of water, all protective colloid solution and 80 parts of pre-emulsion into a reaction kettle, heating, adding 40 parts of initiator solution at 80 ℃, mixing, and initiating polymerization at 90 ℃ for 30min to prepare seed emulsion;

(5) mixing the residual pre-emulsion with 150 parts of allyl epoxy terminated polyether emulsion and 60 parts of allyl terminated polysiloxane prepolymer emulsion, gradually adding the mixture and the residual initiator solution into the seed emulsion of the polymerization reaction kettle respectively until the reaction is finished, continuously keeping the reaction temperature for 2 hours, cooling, and filtering by using 100-150-mesh filter cloth to obtain the modified styrene-acrylic emulsion;

secondly, preparing the component A:

(1) dispersing 0.8 part of flatting agent and 1 part of dispersing agent in 20 parts of water, uniformly stirring for 5 minutes, and then adding 0.25 part of defoaming agent to defoam to obtain clear liquid;

(2) adding 3 parts of cellulose ether for full swelling, adding 20 parts of titanium dioxide, 10 parts of kaolin, 7 parts of diatomite, 5 parts of calcium carbonate and 8 parts of barium sulfate after thickening, dispersing at a high speed of 2000rpm for 50min until the detection fineness is not more than 30um, and then adding an amine neutralizer until the pH value is 9 to obtain slurry;

(3) sequentially adding 50 parts of modified styrene-acrylic emulsion, 15 parts of amino-terminated polydimethylsiloxane to prepare an organic silicon emulsion with the solid content of 55-65%, later supplementing 0.25 part of defoaming agent, 2 parts of hydrophobing agent, 0.5 part of preservative, 0.3 part of bactericide and 1 part of film-forming auxiliary agent into the slurry and uniformly stirring;

(4) finally, 0.6 part of thickening agent is added, the viscosity is adjusted, the mixture is stirred for 30min and filtered, and the component A of the required super-hydrophobic anti-fouling interior wall latex paint is obtained;

thirdly, preparing a component B: taking a hydrophilic modified polyisocyanate curing agent based on HMDI as a B component;

fourthly, the use method of the super-hydrophobic anti-fouling interior wall latex paint comprises the following steps: mixing the component A and the component B according to the weight ratio of 40:1, then adding 30% of clear water for dilution, and uniformly stirring for use; the putty for the inner wall is leveled and polished, and then construction is carried out, and water-based inner wall primer can be added for reinforcement according to requirements; the rolling, spraying and brushing process construction can be adopted, and the requirements are uniform, brush leakage-free and accumulation-free; the dosage is as follows: 0.35kg/m²The actual usage is affected by the conditions of the base layer; during construction, cross spraying or brushing is carried out from top to bottom and left and right from the center in the range which can be sprayed or brushed, and the construction is carried out from top to bottom for the last time so as to obtain the same refractive index; the surface of the coating is dried for 50min/25 ℃, the actual drying is carried out for 48h/25 ℃, and the recoating time is at least 24 hours; after about 10 days of maintenance, the film is completely formed and the best adhesive force state is achieved; the tool is cleaned with clean water immediately after use.

Example 3:

firstly, preparing a modified styrene-acrylic emulsion:

(1) according to the mass parts, firstly, 200 parts of water, 1 part of sodium bicarbonate, 6 parts of octyl phenol polyoxyethylene ether, 12 parts of sodium dodecyl sulfate and mixed monomers are mixed to prepare pre-emulsion;

the mixed monomer comprises 170 parts of styrene, 250 parts of butyl acrylate, 15 parts of methyl methacrylate, 20 parts of methyl propylene hydroxyethyl and 10 parts of methacrylic acid;

(2) dissolving 3 parts of ammonium persulfate in 60 parts of water according to the mass part to prepare an initiator solution;

(3) dissolving 6 parts by mass of sodium polymethacrylate in 50 parts by mass of water to prepare a protective colloid solution;

(4) adding 200 parts of water, all protective colloid solution and 60 parts of pre-emulsion into a reaction kettle, heating, adding 35 parts of initiator solution at 70 ℃, mixing, and initiating polymerization at 80 ℃ for 20min to prepare seed emulsion;

(5) mixing the residual pre-emulsion with 100 parts of acrylate modified polyurethane emulsion and 30 parts of allyl-terminated polysiloxane polyurethane prepolymer emulsion, gradually adding the mixture and the residual initiator solution into the seed emulsion of a polymerization reaction kettle respectively until the reaction is finished, continuously keeping the reaction temperature for 1.5h, cooling, and filtering by using 100-150-mesh filter cloth to obtain the modified styrene-acrylic emulsion;

secondly, preparing the component A:

(1) dispersing 0.5 part of flatting agent and 0.7 part of dispersing agent in 15 parts of water, uniformly stirring for 4 minutes, and then adding 0.2 part of defoaming agent to defoam to obtain clear liquid;

(2) adding 2 parts of cellulose ether for full swelling, adding 15 parts of titanium dioxide, 7 parts of kaolin, 5 parts of diatomite, 3 parts of calcium carbonate and 5 parts of barium sulfate after thickening, dispersing at a high speed of 1500rpm for 30min until the detection fineness is not more than 30um, and then adding an amine neutralizer until the pH value is 9 to obtain slurry;

(3) then, sequentially adding 40 parts of modified styrene-acrylic emulsion, 10 parts of epoxy-terminated polydimethylsiloxane to prepare an organic silicon emulsion with the solid content of 55-65%, 0.2 part of a post-foaming agent, 1.5 parts of a hydrophobic agent, 0.3 part of a preservative, 0.25 part of a bactericide and 0.7 part of a film-forming auxiliary agent into the slurry and uniformly stirring;

(4) finally, 0.4 part of thickening agent is added, the viscosity is adjusted, the mixture is stirred for 20min and filtered, and the component A of the required super-hydrophobic anti-fouling interior wall latex paint is obtained;

thirdly, preparing a component B: taking a hydrophilic modified polyisocyanate curing agent based on TMDI as a component B;

fourthly, the use method of the super-hydrophobic anti-fouling interior wall latex paint comprises the following steps: mixing the component A and the component B according to the weight ratio of 30:1, then adding 20% of clear water for dilution, and uniformly stirring for use; the putty for the inner wall is leveled and polished, and then construction is carried out, and water-based inner wall primer can be added for reinforcement according to requirements; the rolling, spraying and brushing process construction can be adopted, and the requirements are uniform, brush leakage-free and accumulation-free; the dosage is as follows: 0.35kg/m²The actual usage is affected by the conditions of the base layer; during construction, cross spraying or brushing is carried out from top to bottom and left and right from the center in the range which can be sprayed or brushed, and the construction is carried out from top to bottom for the last time so as to obtain the same refractive index; the surface of the coating is dried for 50min/25 ℃, the actual drying is carried out for 48h/25 ℃, and the recoating time is at least 24 hours; after about 10 days of maintenance, the film is completely formed and the best adhesive force state is achieved; the tool is cleaned with clean water immediately after use.

Note: (1) the dispersant used in the above examples is a high molecular ammonium salt dispersant of type 5027, produced by nippon assistant co.ltd; the defoaming agent adopted in the above examples is a mineral oil type defoaming agent of model NXZ manufactured by Nopoplacco adjuvant Co., Ltd; the thickener used in the above examples was model TT-935, a thickener manufactured by Dow; the bactericide adopted in the embodiment is a bactericide of A26 type produced by German Shumei company; the coalescing agent employed in the above examples was alcohol ester twelve produced by eastman usa; the cellulose ether used in the above examples was a cellulose ether manufactured by Ashland USA with a model number of 250 HBR; the titanium dioxide adopted in the embodiment is rutile type titanium dioxide with model number of 996 produced by the Sichuan python titanium industry limited company; the kaolin used in the above examples was calcined kaolin manufactured by Shanxi super brand calcined kaolin, Inc.

(2) All the above examples are tested according to two national standards of GB/T9756-:

table 1:

it can be seen from the above table that the products of all the above embodiments conform to: 1. meets the GB/T9756-; 2. meets the limit of harmful substances in the interior wall coating of GB 18582-.

All the above embodiments are tested by an SDC-100 water drop angle tester, the water contact angles are all more than or equal to 150 degrees, and the super-hydrophobic property is realized.

All the above examples can be easily wiped clean with a rag after writing on the surface of an oily marker for 10min, 30min, 60min, 10h, 24h and 48h, and have excellent stain resistance.

The working principle of the invention is as follows: the molecular design is adopted to simultaneously insert an elastomer block and a siloxane block into a molecular chain of a styrene-acrylic emulsion film-forming polymer, a preferable active organic silicon emulsion is added into the coating, a water-based cyanate ester curing agent is introduced during coating construction, the wear resistance, elasticity and stain resistance of the coating are greatly improved through a synergistic crosslinking reaction among isocyanate, the organic silicon emulsion and the styrene-acrylic emulsion, and a preferable auxiliary agent and a filler are added, so that the silky texture with lotus leaf-like touch and the super-hydrophobic and super-stain-resistant effect are finally realized, and meanwhile, the scrub resistance can reach more than 30000 times.