CN115948065A - Intrinsic conductive coating for building and preparation method thereof - Google Patents
Intrinsic conductive coating for building and preparation method thereof Download PDFInfo
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Abstract
The application discloses an intrinsic conductive coating for buildings and a preparation method thereof, and relates to the field of conductive coatings. The raw materials comprise the following components in parts by weight: 10-18 parts of inorganic silicate resin, 0.3-0.8 part of wetting dispersant, 32-46 parts of pigment and filler, 0.1-0.4 part of film-forming assistant, 2-4 parts of water repellent, 3-7 parts of odor-free emulsion, 13-18 parts of thickening agent, 0.1-1 part of defoaming agent, 0.05-0.2 part of multifunctional assistant and 10-15 parts of water; the preparation method comprises the following steps: adding wetting dispersant and defoamer into water, stirring and dispersing uniformly, adding multifunctional additive and pigment filler, dispersing uniformly, and grinding to be less than or equal to 50 mu m; adding inorganic silicate resin, film forming assistant and odor-free emulsion, stirring uniformly, adding water repellent and fluorine-containing polysiloxane modified nano titanium dioxide, stirring uniformly, adding thickening agent to adjust the viscosity of the coating to 85-95KU, and dispersing uniformly to obtain the intrinsic conductive coating for buildings. The intrinsic conductive coating for the building has excellent conductivity, waterproofness, leveling property and environmental protection performance.
Description
Technical Field
The application relates to the field of conductive coatings, in particular to an intrinsic conductive coating for buildings.
Background
Coatings are a generic term for liquid or solid materials that can be applied to the surface of an object to form a solid film having protective, decorative or special properties, such as insulation, corrosion protection, signage, and the like. The paint is viscous liquid prepared by using resin, oil or emulsion as main material, adding or not adding pigment and filler, adding corresponding assistant and using organic solvent or water.
The related technology can refer to Chinese invention application with publication number CN109943229A, which discloses a coating for buildings, which is prepared from the following raw materials in parts by weight: 35-45 parts of organic polymer emulsion, 48-56 parts of pigment, 10-20 parts of nano far infrared ceramic powder, 3-50 parts of flatting agent and 45-60 parts of adhesive.
With respect to the related art among the above, the inventors consider that there are the following drawbacks: the organic polymer emulsion in the coating has very high surface resistance and body resistance, static electricity is generated by static charge accumulation caused by friction, and once the static electricity is generated, the static electricity needs to be discharged in time, but the static electricity is continuously accumulated due to the lack of conductive components in the coating, and accidents such as fire, explosion and the like can be caused by the static electricity accumulation, so that the life safety of personnel is threatened.
Disclosure of Invention
In order to solve the problem of electrostatic accumulation generated by building materials, the application provides an intrinsic conductive coating for buildings and a preparation method thereof.
The application provides an intrinsic conductive coating for buildings, which adopts the following technical scheme:
an intrinsically conductive coating material for construction, comprising: 10-18 parts of inorganic silicate resin, 0.3-0.8 part of wetting dispersant, 32-46 parts of pigment and filler, 0.1-0.4 part of film-forming assistant, 2-4 parts of water repellent, 3-7 parts of odor-free emulsion, 13-18 parts of thickening agent, 0.1-1 part of defoaming agent, 0.05-0.2 part of multifunctional assistant and 10-15 parts of water; the molecular structure expression of the inorganic silicate resin is K 2 O.[SiO (2-n/m) .(2n/m)(OH)] m K is alkali metal, m is the polymerization degree of silica, m is more than or equal to 1 and less than or equal to 5<n<2。
By adopting the technical scheme, the inorganic silicate resin is used as the base material, because the inorganic silicate resin has lower surface resistance and very good conductivity, the inorganic silicate resin can be used as an intrinsic conductive coating, any conductive additive is not required to be added, the inorganic silicate is used as the base material, the polymerization degree of inorganic silicate molecules is relatively low, the proportion of alkali metal ions in the whole molecules is relatively high, after the coating is prepared, the active silanol in the coating is dehydrated and subjected to chemical reaction and solidification, a high-strength inorganic coating is formed, reaction byproducts are inorganic high-hydration salts such as potassium carbonate, potassium bicarbonate and the like during solidification and can be dissociated into ions, and the surface of the inorganic silicate coating shows good conductive effect.
Preferably, the multifunctional auxiliary agent is AMP95.
By adopting the technical scheme, the multifunctional auxiliary agent is adopted, the performance of the paint can be improved, the cost is reduced, the AMP95 serving as a powerful co-dispersing agent can prevent the pigment from re-agglomerating, and meanwhile, the characteristics of thickening, pH value adjustment, no color change, antibiosis and the like can be achieved, and meanwhile, the multifunctional auxiliary agent AMP95 can also reduce the total amount of volatile organic compounds, and the environmental protection performance of the paint is favorably improved.
Preferably, the coalescing agent is an alcohol ester twelve.
By adopting the technical scheme, the film-forming auxiliary agent can help the inorganic silicate resin to tightly and continuously form a smooth and uniform paint film in various environments, and the alcohol ester twelve has small water solubility, is easy to absorb, can be in direct contact and is easier to swell colloidal particles compared with other film-forming auxiliary agents; the volatilization speed of the solvent is low, the solvent is kept in the coating before film forming, the solvent action is not influenced by the volatilization of water, and the continuity of the film forming is good; the paint has proper volatility, can be completely volatilized in a short time after the paint is formed into a film, and cannot influence the hardness and the gloss of the paint.
Preferably, the water repellent is an organosilicon neutralizer SI50.
By adopting the technical scheme, the waterproof capability of the coating can be improved by adopting the water repellent, the organic silicon neutralizing agent SI50 has better waterproof property, the waterproof capability of the coating can be improved, and meanwhile, the organic silicon neutralizing agent SI50 has a zero-volatile organic compound, so that the environmental protection performance of the coating is favorably improved.
Preferably, the thickener is an anionic cellulose ether.
Through adopting above-mentioned technical scheme, adopt the thickening agent can improve the viscidity of coating, prevent that the coating from appearing the sagging phenomenon in the work progress, improved the levelling nature of coating, anionic cellulose ether not only can improve the viscidity of coating, can also improve the hygroscopicity of coating simultaneously.
Preferably, the raw material also comprises 4 to 8 parts of fluorine-containing polysiloxane modified nano titanium dioxide by weight.
By adopting the technical scheme, the fluorine-containing polysiloxane modified nano titanium dioxide can improve the waterproof capacity and the light aging resistance of the coating, the nano titanium dioxide can absorb ultraviolet rays, reflect and scatter the ultraviolet rays, can also transmit visible light and improve the light aging resistance of the coating, but the nano titanium dioxide has photoinduced super-hydrophilicity, the polysiloxane has excellent waterproofness, the polysiloxane modified nano titanium dioxide retains the excellent light aging resistance of the nano titanium dioxide, the hydrophilicity of the nano titanium dioxide is also reduced, and the waterproof performance of the coating is improved.
The application also provides a preparation method of the intrinsic conductive coating for the building, which adopts the following technical scheme:
a preparation method of an intrinsic conductive coating for buildings comprises the following steps:
s1, adding 0.3-0.8 part of wetting dispersant and 0.1-1 part of defoamer into 15-49.45 parts of water, stirring and dispersing uniformly, adding 0.05-0.2 part of multifunctional additive and 32-46 parts of pigment filler, dispersing uniformly, and grinding to obtain a material A;
s2, adding 10-18 parts of inorganic silicate resin, 0.1-0.4 part of film-forming aid and 3-7 parts of odor-free emulsion into the material A, uniformly stirring, adding 2-4 parts of water repellent and 4-8 parts of fluorine-containing polysiloxane modified nano titanium dioxide, uniformly stirring, adding 13-18 parts of thickening agent, and uniformly stirring to obtain the conductive coating.
By adopting the technical scheme, the inorganic silicate resin is adopted, the conductive performance of the coating can be realized by utilizing the conductive function of the inorganic silicate resin, other conductive fillers are not required to be added, and meanwhile, the inorganic silicate resin is used as a coating base material, so that the electrostatic hazard generated in the use of the coating is avoided.
Preferably, the preparation method of the fluorine-containing polysiloxane modified nano titanium dioxide comprises the following steps:
adding 25-30 parts of nano titanium dioxide into 250-300 parts of absolute ethyl alcohol for dispersing for 40-60min, heating at 40-60 ℃ for 20-30min, adding 0.5-0.7 part of hydroxyl-terminated polymethyl trifluoropropyl siloxane and 0.01-0.02 part of dibutyltin dilaurate, continuing to react for 4-6h, and after the reaction is finished, aging, centrifuging, washing and drying the product to obtain the fluorine-containing polysiloxane modified nano titanium dioxide.
By adopting the technical scheme, the fluorine-containing polysiloxane modified nano titanium dioxide is adopted to improve the waterproof capability of the coating, the nano titanium dioxide has photoinduced super-hydrophilicity, the polysiloxane has excellent waterproofness, and the polysiloxane modified nano titanium dioxide not only keeps the excellent light anti-aging property of the nano titanium dioxide, but also reduces the hydrophilicity of the nano titanium dioxide and improves the waterproof performance of the coating.
In summary, the present application includes at least one of the following beneficial technical effects:
1. by adopting the technical scheme, the inorganic silicate resin is used as the base material, because the inorganic silicate resin has lower surface resistance and very good conductivity, the inorganic silicate resin can be used as an intrinsic conductive coating, no conductive additive is required to be added, the inorganic silicate is used as the base material, the polymerization degree of inorganic silicate molecules is relatively low, the proportion of alkali metal ions in the whole molecules is relatively high, after the coating is prepared and constructed, the active silanol in the coating is dehydrated to carry out chemical reaction and solidification, a high-strength inorganic coating is formed, reaction byproducts are inorganic high-hydration salts such as potassium carbonate, potassium bicarbonate and the like during solidification and can be dissociated into ions, and the surface of the inorganic silicate coating has a good conductive effect;
2. by adopting the technical scheme, the fluorine-containing polysiloxane modified nano titanium dioxide can improve the waterproof capability and the light aging resistance of the coating. The nano titanium dioxide can absorb ultraviolet rays, reflect and scatter the ultraviolet rays and can transmit visible light, so that the light aging resistance of the coating can be improved, but the nano titanium dioxide has photoinduced super-hydrophilicity, and the polysiloxane has excellent waterproofness;
3. through adopting above-mentioned technical scheme, adopt the thickening agent can improve the viscidity of coating, prevent that the coating from appearing the sagging phenomenon in the work progress, improved the levelling nature of coating, anionic cellulose ether not only can improve the viscidity of coating, can also improve the hygroscopicity of coating simultaneously.
Detailed Description
The present application will be described in further detail with reference to examples.
Examples
Example 1
S1, adding 25kg of nano titanium dioxide into 250kg of absolute ethyl alcohol for dispersing for 40min, magnetically stirring for 20min at 40 ℃ and 400rpm, adding 0.5kg of hydroxyl-terminated polymethyl trifluoropropyl siloxane and 0.01kg of dibutyltin dilaurate, and continuing to react for 4h; after the reaction is finished, standing at 20 ℃ for 10h, centrifuging at 1200rpm for 40min to obtain a lower layer solid, washing in deionized water, and drying at 100 ℃ for 6h to obtain fluorine-containing polysiloxane modified nano titanium dioxide;
s2, adding 10.9kg of water, 0.6kg of wetting dispersant and 0.15kg of defoaming agent into a stirring dispersion machine, wherein the wetting dispersant selected in the embodiment is Disperbx S60/100, and the defoaming agent is polysiloxane; stirring at 800rpm for 20min, adding 0.1kg multifunctional auxiliary AMP95 into a stirring dispersion machine, stirring and dispersing at 800rpm for 20min, adding 15kg titanium dioxide, 20kg calcium carbonate and 5kg kaolin, dispersing at 1200rpm for 40min, uniformly dispersing, and grinding for 45min;
s3, adding 15kg of inorganic silicate resin, 0.2kg of dodecyl alcohol ester and 5kg of odor-free emulsion into a stirring dispersion machine, wherein the inorganic silicate resin selected in the embodiment is a silvador chemical potassium silicate resin, and the odor-free emulsion is Bardford RS-5969; stirring at 200rpm for 20min, adding organosilicon neutralizer SI50 kg and S1 prepared fluorine-containing polysiloxane modified nano titanium dioxide 6kg into a stirring disperser, stirring at 200rpm for 20min, adding 16kg of anionic cellulose ether into the stirring disperser to adjust viscosity, and stirring at 800rpm for 40min to obtain the conductive coating.
Example 2
Example 2 is different from example 1 in that the process parameters for preparing the fluorine-containing polysiloxane modified nano titanium dioxide in example 2 are different:
s1, adding 28kg of nano titanium dioxide into 250kg of absolute ethyl alcohol for dispersing for 50min, magnetically stirring for 40min at 50 ℃ and 450rpm, adding 0.6kg of hydroxyl-terminated polymethyl trifluoropropyl siloxane and 0.015kg of dibutyltin dilaurate, and continuing to react for 5h; after the reaction is finished, placing the mixture at 25 ℃ for 12h, centrifuging the mixture for 50min at 1300rpm to obtain a lower layer solid, washing the lower layer solid in deionized water, and drying the lower layer solid at 110 ℃ for 6.5h to obtain fluorine-containing polysiloxane modified nano titanium dioxide;
s2, adding 10.9kg of water, 0.6kg of wetting dispersant and 0.15kg of defoaming agent into a stirring dispersion machine, wherein the wetting dispersant selected in the embodiment is Disperbx S60/100, and the defoaming agent is polysiloxane; stirring at 800rpm for 20min, adding 0.1kg multifunctional auxiliary AMP95 into a stirring dispersion machine, stirring and dispersing at 800rpm for 20min, adding 15kg titanium dioxide, 20kg calcium carbonate and 5kg kaolin, dispersing at 1200rpm for 50min, uniformly dispersing, and grinding for 45min;
s3, adding 15kg of inorganic silicate resin, 0.2kg of dodecyl alcohol ester and 5kg of odor-free emulsion into a stirring dispersion machine, wherein the inorganic silicate resin selected in the embodiment is a silvador chemical potassium silicate resin, and the odor-free emulsion is Bardford RS-5969; stirring at 200rpm for 20min, adding organosilicon neutralizer SI50 kg and S1 prepared fluorine-containing polysiloxane modified nano titanium dioxide 6kg into a stirring disperser, stirring at 200rpm for 20min, adding 16kg of anionic cellulose ether into the stirring disperser to adjust viscosity, and stirring at 800rpm for 40min to obtain the conductive coating.
Example 3
Example 3 differs from example 1 in that example 3 has different process parameters for preparing the fluorine-containing polysiloxane modified nano titanium dioxide:
s1, adding 30kg of nano titanium dioxide into 250kg of absolute ethyl alcohol for dispersing for 40min, magnetically stirring at 60 ℃ and 500rpm for 60min, adding 0.7kg of hydroxyl-terminated polymethyl trifluoropropyl siloxane and 0.02kg of dibutyltin dilaurate, and continuing to react for 6h; after the reaction is finished, placing the mixture at 30 ℃ for 13h, centrifuging the mixture for 60min at 1350rpm to obtain a lower-layer solid, washing the lower-layer solid in deionized water, and drying the lower-layer solid at 120 ℃ for 7h to obtain fluorine-containing polysiloxane modified nano titanium dioxide;
s2, adding 10.9kg of water, 0.6kg of wetting dispersant and 0.15kg of defoaming agent into a stirring dispersion machine, wherein the wetting dispersant selected in the embodiment is Disperbx S60/100, and the defoaming agent is polysiloxane; stirring at 800rpm for 20min, adding 0.1kg multifunctional auxiliary AMP95 into a stirring dispersion machine, stirring and dispersing at 800rpm for 20min, adding 15kg titanium dioxide, 20kg calcium carbonate and 5kg kaolin, dispersing at 1200rpm for 40min, uniformly dispersing, and grinding for 45min;
s3, adding 15kg of inorganic silicate resin, 0.2kg of alcohol ester twelve and 5kg of odor-free emulsion into a stirring dispersion machine, wherein the inorganic silicate resin selected in the embodiment is silvicon chemical potassium silicate resin, and the odor-free emulsion is Bardfir RS-5969; stirring at 200rpm for 20min, adding organosilicon neutralizer SI50 kg and S1 prepared fluorine-containing polysiloxane modified nano titanium dioxide 6kg into a stirring disperser, stirring at 200rpm for 20min, adding 16kg of anionic cellulose ether into the stirring disperser to adjust viscosity, and stirring at 800rpm for 40min to obtain the conductive coating.
Example 4
Example 4 differs from example 1 in that example 4 differs in the process parameters for preparing the conductive coating:
s1, adding 25kg of nano titanium dioxide into 250kg of absolute ethyl alcohol for dispersing for 40min, magnetically stirring at 40 ℃ and 400rpm for 20min, adding 0.5kg of hydroxyl-terminated polymethyl trifluoropropyl siloxane and 0.01kg of dibutyltin dilaurate, and continuing to react for 4h. After the reaction is finished, the mixture is placed at 20 ℃ for 10h, centrifuged at 1200rpm for 40min to obtain a lower layer solid, washed in deionized water, and dried at 100 ℃ for 6h to obtain the fluorine-containing polysiloxane modified nano titanium dioxide.
S2, adding 10.9kg of water, 0.6kg of wetting dispersant and 0.15kg of defoaming agent into a stirring dispersion machine, wherein the wetting dispersant selected in the embodiment is Disperbx S60/100, and the defoaming agent is polysiloxane; stirring at 850rpm for 25min, adding 0.05kg multifunctional assistant AMP95 into a stirring dispersion machine, stirring and dispersing at 850rpm for 25min, adding 13kg titanium dioxide, 17kg calcium carbonate and 2kg kaolin, dispersing at 1300rpm for 45min, uniformly dispersing, and grinding for 55min;
s3, adding 15kg of inorganic silicate resin, 0.1kg of alcohol ester twelve and 5kg of odor-free emulsion into a stirring dispersion machine, wherein the inorganic silicate resin selected in the embodiment is silvicon chemical potassium silicate resin, and the odor-free emulsion is Bardfir RS-5969; stirring at 300rpm for 30min, adding organosilicon neutralizer SI50 kg and S1 prepared fluorine-containing polysiloxane modified nano titanium dioxide 6kg into a stirring disperser, stirring at 300rpm for 30min, adding 16kg of anionic cellulose ether into the stirring disperser to adjust viscosity, and stirring at 850rpm for dispersing for 45min to obtain the conductive coating.
Example 5
Example 5 differs from example 1 in that example 5 differs in the process parameters for preparing the conductive coating:
s1, adding 25kg of nano titanium dioxide into 250kg of absolute ethyl alcohol for dispersing for 40min, magnetically stirring for 20min at 40 ℃ and 400rpm, adding 0.5kg of hydroxyl-terminated polymethyl trifluoropropyl siloxane and 0.01kg of dibutyltin dilaurate, and continuing to react for 4h; after the reaction is finished, placing the mixture at 30 ℃ for 10h, centrifuging the mixture at 1200rpm for 40min to obtain a lower layer solid, washing the lower layer solid in deionized water, and drying the lower layer solid at 100 ℃ for 6h to obtain fluorine-containing polysiloxane modified nano titanium dioxide;
s2, adding 10.9kg of water, 0.6kg of wetting dispersant and 0.15kg of defoaming agent into a stirring dispersion machine, wherein the wetting dispersant selected in the embodiment is Disperbx S60/100, and the defoaming agent is polysiloxane; stirring at 900rpm for 30min, adding 0.2kg multifunctional assistant AMP95 into a stirring dispersion machine, stirring and dispersing at 900rpm for 30min, adding 17kg titanium dioxide, 22kg calcium carbonate and 7kg kaolin, dispersing at 1350rpm for 50min, uniformly dispersing, and grinding for 65min;
s3, adding 15kg of inorganic silicate resin, 0.4kg of alcohol ester twelve and 5kg of odor-free emulsion into a stirring dispersion machine, wherein the inorganic silicate resin selected in the embodiment is silvicon chemical potassium silicate resin, and the odor-free emulsion is Bardfir RS-5969; stirring at 400rpm for 40min, adding organosilicon neutralizer SI50 kg and S1 prepared fluorine-containing polysiloxane modified nano titanium dioxide 6kg into a stirring disperser, stirring at 400rpm for 40min, adding anionic cellulose ether 16kg into the stirring disperser to adjust viscosity, and stirring at 900rpm for 50min to obtain the conductive coating.
Examples 6 to 15
Examples 6-15 differ from example 1 in the process parameters for preparing the conductive coatings of examples 6-15, as shown in table 1:
TABLE 1 Process parameters for preparing electrically conductive coatings in examples 6-15
Comparative example
Comparative examples 1 to 10
Comparative examples 1 to 10 are different from example 1 in that the process parameters for preparing the conductive coating materials of comparative examples 1 to 10 are different, as shown in table 2:
TABLE 2 Process parameters for preparing conductive coatings in comparative examples 1-10
Comparative example 9
Comparative example 11 is different from example 1 in that comparative example 11 employs propylene glycol methyl ether acetate as a film forming aid in preparing the conductive paint.
Comparative example 10
Comparative example 12 differs from example 1 in that the water repellent used in the preparation of the conductive coating of comparative example 12 is a fluorocarbon polymer water repellent.
Comparative example 11
Comparative example 13 is different from example 1 in that bentonite is used as a thickener for preparing the conductive paint in comparative example 13.
Performance test
1. The surface resistivity of the coating is measured by GB/T16972-1997 petroleum tank static conductive coating resistivity measuring method.
2. The leveling of the coating was determined by JB/T3998-1999 "paint leveling scratch test".
3. The water impermeability of the coating is determined by GB/T16777-2008 & lttest method for waterproof coatings for buildings'.
4. The state of the paint in the container was checked using GB 3186 "sampling of paint products".
5. The content of Volatile Organic Compounds (VOC) in the paint is detected by GB 24408-2009 Limit Standard of harmful substances in exterior wall paint.
The specific detection results are shown in table 3:
TABLE 3
From the detection results of examples 1 to 3, it is known that the fluorine-containing polysiloxane modified nano titanium dioxide prepared from the nano titanium dioxide, the hydroxyl-terminated polymethyltrifluoropropylsiloxane and the dibutyltin dilaurate in parts by weight provided by the present application can achieve a waterproof effect, and has a small influence on other physical and chemical properties of the coating.
From the test results of example 1,4,5, it can be seen that the pigment, filler, multifunctional additive film-forming additive and their weight parts provided herein can satisfy the performance of an intrinsic conductive coating material for construction, and have less influence on the surface resistivity, leveling property, water impermeability and condition in a container. As can be seen from comparative example 9, the application provides twelve film-forming aids, namely alcohol esters, which have low volatile organic content and are more environmentally friendly.
As can be seen from the results of the tests of examples 1,6,7 and comparative examples 1,2, the content of the inorganic silicate resin had an influence on the surface resistivity of the coating material, and the content of the inorganic silicate resin increasedWhen the inorganic silicate resin is added, the surface resistivity is gradually reduced, and when the inorganic silicate resin is 10 to 18 parts by weight, the surface resistivity is 1.0 multiplied by 10 7 -1.0×10 9 Omega, which indicates that the coating has conductivity, and when the content of the inorganic silicate resin is less than 10kg, the surface resistivity is higher than 1.0X 10 12 Omega, the conductive performance of the coating is lower, and when the content of the inorganic silicate resin is more than 18kg, the conductive performance of the coating is higher, and the coating is used for surfaces with higher conductive requirements.
As can be seen from the detection results of examples 1,8 and 9 and comparative examples 3 and 4, the content of the water repellent silicone neutralizer SI50 affects the water impermeability of the coating, and when the amount of the silicone neutralizer SI50 is less than 2kg, the water impermeability of the coating is deteriorated, and a water permeability phenomenon occurs; as can be seen from comparative example 10, the present application provides a water repellent silicone neutralizer SI50, which has a low volatile organic content and is more environmentally friendly.
From the test results of examples 1, 10 and 11 and comparative examples 5 and 6, it can be seen that the content of the fluorine-containing polysiloxane modified nano titanium dioxide affects the water impermeability of the coating, and when the amount of the fluorine-containing polysiloxane modified nano titanium dioxide is less than 4kg, the water impermeability of the coating is deteriorated, and the water permeability phenomenon occurs; when the amount of the fluorine-containing polysiloxane modified nano titanium dioxide is more than 8kg, the leveling property of the coating becomes low.
From the test results of examples 1, 12 and 13 and comparative examples 7 and 8, it can be seen that the content of the thickener affects the viscosity of the paint, and when the content of the thickener is less than 13kg, the leveling property of the paint becomes poor; when the content of the thickener is more than 18kg, the leveling property of the paint is also deteriorated, and a phenomenon of blocking occurs when stored in a container; as can be seen from the comparative example 11, the anionic cellulose ether as the thickener provided by the application is more beneficial to improving the leveling performance of the paint, is beneficial to the storage resistance of the paint, and is not easy to cause the caking phenomenon.
The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.
Claims (8)
1. An intrinsic conductive coating for construction, characterized in that: the raw materials comprise the following components in parts by weight: 10-18 parts of inorganic silicate resin, 0.3-0.8 part of wetting dispersant, 13-17 parts of titanium dioxide, 17-22 parts of calcium carbonate, 2-7 parts of kaolin, 0.1-0.4 part of film-forming additive, 2-4 parts of water repellent, 3-7 parts of odor-free emulsion, 13-18 parts of thickening agent, 0.1-1 part of defoaming agent, 0.05-0.2 part of multifunctional additive and 10-15 parts of water; the molecular structure expression of the inorganic silicate resin is K 2 O.[SiO (2-n/m) .(2n/m)(OH)] m K is alkali metal, m is the polymerization degree of silica, m is more than or equal to 1 and less than or equal to 5<n<2。
2. An intrinsically conductive coating material for construction as claimed in claim 1, wherein: the multifunctional auxiliary agent is AMP95.
3. The intrinsically conductive coating for construction as claimed in claim 1, wherein: the film-forming additive is alcohol ester twelve.
4. An intrinsically conductive coating material for construction as claimed in claim 1, wherein: the water repellent is an organosilicon neutralizer SI50.
5. An intrinsically conductive coating material for construction as claimed in claim 1, wherein: the thickening agent is anionic cellulose ether.
6. An intrinsically conductive coating material for construction as claimed in claim 1, wherein: the raw material also comprises 4-8 parts of fluorine-containing polysiloxane modified nano titanium dioxide according to parts by weight.
7. A preparation method of an intrinsic conductive coating for buildings is characterized by comprising the following steps: the method comprises the following steps:
s1, adding 0.3-0.8 part of wetting dispersant and 0.1-1 part of defoamer into 15-49.45 parts of water, stirring and dispersing uniformly, adding 0.05-0.2 part of multifunctional additive and 32-46 parts of pigment filler, dispersing uniformly, and grinding to obtain a material A;
s2, adding 10-18 parts of inorganic silicate resin, 0.1-0.4 part of film-forming aid and 3-7 parts of odor-free emulsion into the material A, uniformly stirring, adding 2-4 parts of water repellent and 4-8 parts of fluorine-containing polysiloxane modified nano titanium dioxide, uniformly stirring, adding 13-18 parts of thickening agent, and uniformly stirring to obtain the conductive coating.
8. The method of claim 7, wherein the coating is prepared by the following steps: the preparation method of the fluorine-containing polysiloxane modified nano titanium dioxide comprises the following steps:
adding 25-30 parts of nano titanium dioxide into 250-300 parts of absolute ethyl alcohol, stirring, dispersing uniformly, heating, adding 0.5-0.7 part of hydroxyl-terminated polymethyl trifluoropropyl siloxane and 0.01-0.02 part of dibutyltin dilaurate, continuing to react, and after the reaction is finished, aging, centrifuging, washing and drying a product to obtain the fluorine-containing polysiloxane modified nano titanium dioxide.
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