CN110643211A - Mildew-proof coating and production process thereof - Google Patents
Mildew-proof coating and production process thereof Download PDFInfo
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- CN110643211A CN110643211A CN201911107032.0A CN201911107032A CN110643211A CN 110643211 A CN110643211 A CN 110643211A CN 201911107032 A CN201911107032 A CN 201911107032A CN 110643211 A CN110643211 A CN 110643211A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/14—Paints containing biocides, e.g. fungicides, insecticides or pesticides
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
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Abstract
The invention discloses a mildew-proof coating and a production process thereof, and relates to the technical field of building materials. The invention provides a mildew-proof coating, which comprises the following raw materials, by weight, 100 parts of water, 145 parts of pigment, 40-60 parts of aluminum silicate, 11-20 parts of silicic acid gel, 3-6 parts of sodium hypochlorite, 5-10 parts of titanium dioxide, 5-10 parts of thickening agent, 3-8 parts of foaming agent and 2-8 parts of mildew-proof agent, and the invention also provides a preparation process of the mildew-proof coating, which comprises the following steps: proportioning, pre-dispersing, re-dispersing and packaging finished products. According to the invention, the benzimidazolyl methyl formate, the tetramethyl thiuram sulfide and the copper powder are used as the mildew preventive, the copper powder can react with amino groups required by fungus propagation, so that the mildew preventive effect is exerted, and the copper cannot be dissolved out in a water-soluble environment, so that the mildew preventive has the characteristic of more lasting effect compared with other mildew preventive, and therefore, the mildew preventive coating has better mildew resistance in a building environment.
Description
Technical Field
The invention belongs to the technical field of building materials, and particularly relates to a mildew-proof coating and a production process thereof.
Background
The mould exists in the surface layer of the wall in a large amount under certain natural conditions, such as aspergillus niger, aspergillus flavus, aspergillus versicolor, trichoderma, chaetomium globosum, mucor and the like, and can propagate in a large amount under the appropriate conditions of the temperature of 20-38 ℃ and the relative humidity of 85-100 percent, so that the surface of a building is corroded, and the substrate is damaged. The appearance of mildew stains on buildings not only affects the appearance, but also has adverse effects on the environment and the sanitation. The fallen mould spores float in the air, which can cause allergic reaction on the skin or respiratory tract of some people and affect the health. Conventional decorative coatings, particularly those containing carbohydrates such as cellulose, polyvinyl alcohol, are susceptible to attack by mold to varying degrees, leading to the appearance of mold in the front.
The benzimidazolyl methyl formate, tetramethyl thiuram sulfide and copper powder are used as the mildew preventive, and the benzimidazolyl methyl formate is low in toxicity, good in thermal stability, good in antibacterial effect on most of molds and economical; the tetramethylthiuram sulfide has low toxicity, good mildew-proof effect, strong fungus inhibition capacity and good stability; the copper powder can react with amino groups required by the propagation of fungi, so that the mildew-proof effect is exerted, and the copper cannot be dissolved out in a water-soluble environment, so that the mildew-proof coating has the characteristic of more lasting effect compared with other mildew-proof agents, and has better mildew resistance in a building environment.
Disclosure of Invention
The invention aims to provide a mildew-proof coating and a production process thereof, wherein benzimidazolyl methyl formate, tetramethyl thiuram sulfide and copper powder are used as mildew-proof agents, and the benzimidazolyl methyl formate is low in toxicity, good in thermal stability, good in antibacterial effect on most of moulds and economical; the tetramethylthiuram sulfide has low toxicity, good mildew-proof effect, strong fungus inhibition capacity and good stability; the copper powder can react with amino groups required by the propagation of fungi, so that the mildew-proof effect is exerted, and the copper cannot be dissolved out in a water-soluble environment, so that the mildew-proof coating has the characteristic of more lasting effect compared with other mildew-proof agents, and has better mildew resistance in a building environment.
The purpose of the invention can be realized by the following technical scheme:
the mildew-proof paint is prepared with water 100 weight portions, pigment 15-30 weight portions, aluminum silicate 40-60 weight portions, silicic acid gel 11-20 weight portions, sodium hypochlorite 3-6 weight portions, titanium white powder 5-10 weight portions, thickener 5-10 weight portions, foaming agent 3-8 weight portions and mildew inhibitor 2-8 weight portions.
Further, the weight ratio of the water, the pigment, the aluminum silicate, the silicic acid gel and the sodium hypochlorite is 110-: 15-25: 45-58: 10-19: 2-5.
Further, the weight ratio of the titanium dioxide, the thickening agent, the foaming agent and the mildew preventive is 5-8: 5-8:4-7:3-6.
Further, the raw materials are as follows by weight: 120-130 parts of water, 17-23 parts of pigment, 48-55 parts of aluminum silicate, 12-17 parts of silicic acid gel, 2-4 parts of sodium hypochlorite, 6-8 parts of titanium dioxide, 6-8 parts of thickening agent, 4-6 parts of foaming agent and 4-7 parts of mildew preventive.
Further, the mildew preventive comprises 2-4 parts of benzimidazolyl methyl formate, 2-6 parts of tetramethyl thiuram sulfide and 1-4 parts of copper powder.
Furthermore, the titanium dioxide is nano titanium dioxide which is non-toxic, uniform in particle size, good in thermal stability and good in dispersibility, can improve the adhesion, ageing resistance and scrubbing resistance of the coating in the environment, and can effectively avoid the formation of mould caused by falling or damage of the coating.
Furthermore, the copper powder is nano copper powder, the average particle size of the copper powder is smaller than 15 mu m, the copper powder can react with amino groups required by fungus propagation, so that the mildew-proof effect is exerted, the surface activity of the nano copper powder is high, the mildew-proof effect is good, and copper cannot be dissolved out in a water-soluble environment, so that the mildew-proof coating has a lasting effect compared with other mildew-proof agents, and the mildew-proof coating has good mildew resistance in a building environment.
The preparation process of the mildew-proof coating comprises the following steps:
step one, proportioning, namely sequentially adding weighed water, pigment, aluminum silicate, silicic acid gel and sodium hypochlorite into a high-speed dispersion machine with the model of zk 008;
pre-dispersing, wherein the rotating speed of a zk008 high-speed dispersing machine is controlled to be 400-;
thirdly, redispersing, namely sequentially adding the weighed titanium pigment, the weighed thickening agent, the weighed foaming agent and the weighed mildewproof agent into a high-speed dispersion machine with the model of zk008 to carry out high-speed dispersion, and controlling the rotating speed of the high-speed dispersion machine of zk008 to be 800r/min to obtain pigment color paste;
and step four, packaging the finished product, and transferring the finished product into a latex barrel with the specification of 25 kg.
The invention has the beneficial effects that:
1. the benzimidazolyl methyl formate, tetramethyl thiuram sulfide and copper powder are used as the mildew preventive, and the benzimidazolyl methyl formate is low in toxicity, good in thermal stability, good in antibacterial effect on most of molds and economical; the tetramethylthiuram sulfide has low toxicity, good mildew-proof effect, strong fungus inhibition capacity and good stability; the copper powder can react with amino groups required by the propagation of fungi, so that the mildew-proof effect is exerted, and the copper cannot be dissolved out in a water-soluble environment, so that the mildew-proof coating has the characteristic of more lasting effect compared with other mildew-proof agents, and has better mildew resistance in a building environment.
2. According to the invention, the silicic acid gel, the titanium dioxide and the mica powder which have good thermal stability and stable chemical properties are used as fillers, so that the strength and stability of the wall surface are improved, the toughness of the coating film is improved, ultraviolet rays and moisture are prevented from penetrating through the coating film, cracking can be prevented, pulverization is delayed, the durability and weather resistance of the coating are enhanced, and the mildew of the film layer can be effectively avoided.
3. The invention avoids the organic base material from having better whiteness improving function while having dry film covering power, and the superfine and grid structure of the aluminum silicate enables the emulsion paint system to be thickened slightly, has good suspension property, and prevents the phenomena of bottom sinking of solid and surface water separation.
Detailed Description
In the description of the present invention, it is to be understood that the terms "middle", "inner", "front", "rear", and the like, indicate an orientation or positional relationship only for the convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referenced components or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Example 1:
the raw materials of the mildew-proof coating comprise, by weight, 100 parts of water, 15 parts of pigment and 40 parts of aluminum silicate, wherein the aluminum silicate has a dry film covering power and a better whiteness improving function, the superfine and grid structure of the aluminum silicate enables a latex paint system to be slightly thickened, the suspension property is good, the phenomena of bottom sinking and surface water distribution of solid parts are prevented, and the aluminum silicate enables a film layer of the mildew-proof coating to have good scrubbing resistance and weather resistance, can shorten surface drying time and does not contain carbohydrate and prevent mildew; 15 parts of silicic acid gel, wherein the silicic acid gel has the characteristics of high adsorption performance, good thermal stability, stable chemical property and higher strength, can enhance the stability of the adsorption of the coating and a wall surface in the actual practical process, and is not easy to be heated to cause cracking, so that mould in the environment is prevented from invading into the coating, 3 parts of sodium hypochlorite, 5 parts of titanium dioxide, stable performance of the titanium dioxide, good covering power, light resistance and chalking resistance, 3 parts of mica powder, and high elasticity of the mica powder, so that the toughness of a coating film can be improved, ultraviolet rays and moisture penetration can be prevented, cracking can be prevented, chalking can be delayed, the durability and weather resistance of the coating are enhanced, the mildew of the film layer can be effectively avoided, the covering power is improved, the film forming temperature of the coating is reduced, and the coating is favorable for film forming, and 5 parts of thickening agent, 3.
Further, the mildew preventive comprises 2 parts of benzimidazolyl methyl formate, 2 parts of tetramethyl thiuram sulfide and 1 part of copper powder, and the benzimidazolyl methyl formate is low in toxicity, good in thermal stability, good in antibacterial effect on most of moulds and economical; the tetramethylthiuram sulfide has low toxicity, good mildew-proof effect, strong fungus inhibition capacity and good stability; the copper powder can react with amino groups required by the propagation of fungi, so that the mildew-proof effect is exerted, and the copper cannot be dissolved out in a water-soluble environment, so that the effect is more durable compared with other mildew-proof agents, and the mildew-proof coating has better mildew resistance in a building environment.
Furthermore, the titanium dioxide is nano titanium dioxide which is non-toxic, uniform in particle size, good in thermal stability and dispersibility, capable of improving the adhesion, ageing resistance and scrubbing resistance of the coating in the environment and capable of effectively avoiding the formation of mould caused by falling or damage of the coating.
Furthermore, the copper powder is nano copper powder, the average particle size of the copper powder is less than 15 mu m, the copper powder can react with amino groups required by fungus propagation, so that the mildew-proof effect is exerted, the surface activity of the nano copper powder is high, the mildew-proof effect is good, and the copper cannot be dissolved out in a water-soluble environment, so that the mildew-proof coating has a lasting effect compared with other mildew-proof agents, and the mildew-proof coating has good mildew resistance in a building environment.
A preparation process of a mildew-proof coating comprises the following steps:
step one, proportioning, namely sequentially adding weighed water, pigment, aluminum silicate, silicic acid gel and sodium hypochlorite into a high-speed dispersion machine with the model of zk 008;
pre-dispersing, wherein the rotating speed of a zk008 high-speed dispersing machine is controlled to be 400r/min, and dispersing is carried out for 30min to prepare stirring color paste which belongs to a semi-finished product of pigment color paste;
step three, redispersion, namely sequentially adding the weighed titanium pigment, the thickening agent, the foaming agent and the mildew preventive into a high-speed dispersion machine with the model of zk008 to carry out high-speed dispersion, and controlling the rotating speed of the zk008 high-speed dispersion machine to be 600r/min to obtain pigment paste;
and step four, packaging the finished product, and transferring the finished product into a latex barrel with the specification of 25 kg.
Example 2:
the raw materials of the mildew-proof coating comprise, by weight, 115 parts of water, 18 parts of pigment and 45 parts of aluminum silicate, wherein the aluminum silicate has a dry film covering power and a better whiteness improving function, the superfine and grid structure of the aluminum silicate enables a latex paint system to be thickened slightly, the suspension is good, the phenomena of bottom sinking and surface water separation of solid parts are prevented, the aluminum silicate enables a mildew-proof coating film layer to have good scrubbing resistance and weather resistance, the surface drying time can be shortened, carbohydrate is not contained, the mildew is prevented, 15 parts of silicic acid gel is contained, the silicic acid gel has the characteristics of high adsorption performance, good thermal stability, stable chemical property and higher strength, the stability of the coating and the wall surface adsorption can be enhanced in the actual practical process, the phenomenon of cracking caused by heating is avoided, and further, the phenomenon that mildew in the environment invades into the coating, 4 parts of sodium hypochlorite, and the like, 6 parts of titanium dioxide, 4 parts of mica powder and 12 parts of mildew preventive, wherein the titanium dioxide has stable performance, good covering power, light resistance and chalking resistance, and the mica powder has high elasticity, can improve the toughness of a coating film, prevent ultraviolet rays and water from penetrating, prevent cracking, delay chalking, enhance the durability and weather resistance of the coating, effectively avoid mildew of the film layer, improve the covering power, reduce the film forming temperature of the coating and contribute to film forming, and the thickening agent 7, the foaming agent 4 parts and the mildew preventive are used.
Further, the mildew preventive comprises 3 parts of benzimidazolyl methyl formate, 3 parts of tetramethyl thiuram sulfide and 2 parts of copper powder, and the benzimidazolyl methyl formate is low in toxicity, good in thermal stability, good in antibacterial effect on most of moulds and economical; the tetramethylthiuram sulfide has low toxicity, good mildew-proof effect, strong fungus inhibition capacity and good stability; the copper powder can react with amino groups required by the propagation of fungi, so that the mildew-proof effect is exerted, and the copper cannot be dissolved out in a water-soluble environment, so that the effect is more durable compared with other mildew-proof agents, and the mildew-proof coating has better mildew resistance in a building environment.
Furthermore, the titanium dioxide is nano titanium dioxide which is non-toxic, uniform in particle size, good in thermal stability and dispersibility, capable of improving the adhesion, ageing resistance and scrubbing resistance of the coating in the environment and capable of effectively avoiding the formation of mould caused by falling or damage of the coating.
Furthermore, the copper powder is nano copper powder, the average particle size of the copper powder is less than 15 mu m, the copper powder can react with amino groups required by fungus propagation, so that the mildew-proof effect is exerted, the surface activity of the nano copper powder is high, the mildew-proof effect is good, and the copper cannot be dissolved out in a water-soluble environment, so that the mildew-proof coating has a lasting effect compared with other mildew-proof agents, and the mildew-proof coating has good mildew resistance in a building environment.
A preparation process of a mildew-proof coating comprises the following steps:
step one, proportioning, namely sequentially adding weighed water, pigment, aluminum silicate, silicic acid gel and sodium hypochlorite into a high-speed dispersion machine with the model of zk 008;
pre-dispersing, wherein the rotating speed of a zk008 high-speed dispersing machine is controlled to be 500r/min, and dispersing is carried out for 40min to prepare stirring color paste which belongs to a semi-finished product of pigment color paste;
step three, redispersing, namely sequentially adding the weighed titanium pigment, the weighed thickening agent, the weighed foaming agent and the weighed mildewproof agent into a high-speed dispersion machine with the model of zk008 to perform high-speed dispersion, and controlling the rotating speed of the high-speed dispersion machine with the model of zk008 to be 700r/min to obtain pigment paste;
and step four, packaging the finished product, and transferring the finished product into a latex barrel with the specification of 25 kg.
Example 3:
the raw materials of the mildew-proof coating comprise, by weight, 110 parts of water, 22 parts of pigment and 49 parts of aluminum silicate, wherein the aluminum silicate has a dry film covering power and a better whiteness improving function, the superfine and grid structure of the aluminum silicate enables a latex paint system to be thickened slightly, the suspension is good, the phenomena of bottom sinking and surface water separation of solid parts are prevented, the aluminum silicate enables a mildew-proof coating film layer to have good scrubbing resistance and weather resistance, the surface drying time can be shortened, carbohydrate is not contained, the mildew is prevented, 15 parts of silicic acid gel is contained, the silicic acid gel has the characteristics of high adsorption performance, good thermal stability, stable chemical property and higher strength, the stability of the coating and the wall surface adsorption can be enhanced in the actual practical process, the phenomenon of cracking caused by heating is avoided, and further, the phenomenon that mildew in the environment invades into the coating, 5 parts of sodium hypochlorite, and the, 8 parts of titanium dioxide, 5 parts of mica powder and 13 parts of mildew preventive, wherein the titanium dioxide has stable performance, good covering power, light resistance and chalking resistance, and the mica powder has high elasticity, can improve the toughness of a coating film, prevent ultraviolet rays and water from penetrating, prevent cracking, delay chalking, enhance the durability and weather resistance of the coating, effectively avoid mildew of the film layer, improve the covering power, reduce the film forming temperature of the coating and contribute to film forming, and the thickening agent 8, the foaming agent 5 parts and the mildew preventive are 13 parts.
Further, the mildew preventive comprises 3 parts of benzimidazolyl methyl formate, 5 parts of tetramethyl thiuram sulfide and 3 parts of copper powder, and the benzimidazolyl methyl formate is low in toxicity, good in thermal stability, good in antibacterial effect on most of moulds and economical; the tetramethylthiuram sulfide has low toxicity, good mildew-proof effect, strong fungus inhibition capacity and good stability; the copper powder can react with amino groups required by the propagation of fungi, so that the mildew-proof effect is exerted, and the copper cannot be dissolved out in a water-soluble environment, so that the effect is more durable compared with other mildew-proof agents, and the mildew-proof coating has better mildew resistance in a building environment.
Furthermore, the titanium dioxide is nano titanium dioxide which is non-toxic, uniform in particle size, good in thermal stability and dispersibility, capable of improving the adhesion, ageing resistance and scrubbing resistance of the coating in the environment and capable of effectively avoiding the formation of mould caused by falling or damage of the coating.
Furthermore, the copper powder is nano copper powder, the average particle size of the copper powder is less than 15 mu m, the copper powder can react with amino groups required by fungus propagation, so that the mildew-proof effect is exerted, the surface activity of the nano copper powder is high, the mildew-proof effect is good, and the copper cannot be dissolved out in a water-soluble environment, so that the mildew-proof coating has a lasting effect compared with other mildew-proof agents, and the mildew-proof coating has good mildew resistance in a building environment.
A preparation process of a mildew-proof coating comprises the following steps:
step one, proportioning, namely sequentially adding weighed water, pigment, aluminum silicate, silicic acid gel and sodium hypochlorite into a high-speed dispersion machine with the model of zk 008;
pre-dispersing, wherein the rotating speed of a zk008 high-speed dispersing machine is controlled to be 500r/min, and dispersing is carried out for 50min to prepare stirring color paste which belongs to a semi-finished product of pigment color paste;
step three, redispersion, namely sequentially adding the weighed titanium pigment, the thickening agent, the foaming agent and the mildew preventive into a high-speed dispersion machine with the model of zk008 to carry out high-speed dispersion, and controlling the rotating speed of the zk008 high-speed dispersion machine to be 600r/min to obtain pigment paste;
and step four, packaging the finished product, and transferring the finished product into a latex barrel with the specification of 25 kg.
Example 4:
the raw materials of the mildew-proof coating comprise, by weight, 145 parts of water, 30 parts of pigment and 60 parts of aluminum silicate, wherein the aluminum silicate has a dry film covering power and a better whiteness improving function, the superfine and grid structure of the aluminum silicate enables a latex paint system to be thickened slightly, the suspension is good, the phenomena of bottom sinking and surface water separation of solid parts are prevented, the aluminum silicate enables a film layer of the mildew-proof coating to have good scrubbing resistance and weather resistance, the surface drying time can be shortened, carbohydrate is not contained, the mildew is prevented, 20 parts of silicic acid gel is contained, the silicic acid gel has the characteristics of high adsorption performance, good thermal stability, stable chemical property and higher strength, the stability of the coating and the wall surface adsorption can be enhanced in the actual practical process, the phenomenon of cracking caused by heating is avoided, and further, the phenomenon that mildew in the environment invades into the coating, 6 parts of sodium hypochlorite, 6 parts of sodium silicate, 10 parts of titanium dioxide, 6 parts of mica powder and 15 parts of mildew preventive, wherein the titanium dioxide has stable performance, good covering power, light resistance and chalking resistance, and the mica powder has high elasticity, can improve the toughness of a coating film, prevent ultraviolet rays and water from penetrating, prevent cracking, delay chalking, enhance the durability and weather resistance of the coating, effectively avoid mildew of the film layer, improve the covering power, reduce the film forming temperature of the coating and contribute to film forming, and the thickening agent 10, the foaming agent 8 parts and the mildew preventive 15 parts are adopted.
Furthermore, the mildew preventive comprises 4 parts of benzimidazolyl methyl formate, 6 parts of tetramethyl thiuram sulfide and 4 parts of copper powder, and the benzimidazolyl methyl formate is low in toxicity, good in thermal stability, good in antibacterial effect on most of moulds and economical; the tetramethylthiuram sulfide has low toxicity, good mildew-proof effect, strong fungus inhibition capacity and good stability; the copper powder can react with amino groups required by the propagation of fungi, so that the mildew-proof effect is exerted, and the copper cannot be dissolved out in a water-soluble environment, so that the effect is more durable compared with other mildew-proof agents, and the mildew-proof coating has better mildew resistance in a building environment.
Furthermore, the titanium dioxide is nano titanium dioxide which is non-toxic, uniform in particle size, good in thermal stability and dispersibility, capable of improving the adhesion, ageing resistance and scrubbing resistance of the coating in the environment and capable of effectively avoiding the formation of mould caused by falling or damage of the coating.
Furthermore, the copper powder is nano copper powder, the average particle size of the copper powder is less than 15 mu m, the copper powder can react with amino groups required by fungus propagation, so that the mildew-proof effect is exerted, the surface activity of the nano copper powder is high, the mildew-proof effect is good, and the copper cannot be dissolved out in a water-soluble environment, so that the mildew-proof coating has a lasting effect compared with other mildew-proof agents, and the mildew-proof coating has good mildew resistance in a building environment.
A preparation process of a mildew-proof coating comprises the following steps:
step one, proportioning, namely sequentially adding weighed water, pigment, aluminum silicate, silicic acid gel and sodium hypochlorite into a high-speed dispersion machine with the model of zk 008;
pre-dispersing, wherein the rotating speed of a zk008 high-speed dispersing machine is controlled to be 600r/min, and dispersing is carried out for 60min to prepare stirring color paste which belongs to a semi-finished product of pigment color paste;
thirdly, redispersing, namely sequentially adding the weighed titanium pigment, the weighed thickening agent, the weighed foaming agent and the weighed mildewproof agent into a high-speed dispersion machine with the model of zk008 to carry out high-speed dispersion, and controlling the rotating speed of the high-speed dispersion machine with the model of zk008 to be 800r/min to obtain pigment paste;
and step four, packaging the finished product, and transferring the finished product into a latex barrel with the specification of 25 kg.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (8)
1. The mildew-proof paint is characterized by comprising, by weight, 145 parts of water 100, 15-30 parts of pigment, 40-60 parts of aluminum silicate, 11-20 parts of silicic acid gel, 3-6 parts of sodium hypochlorite, 5-10 parts of titanium dioxide, 5-10 parts of thickening agent, 3-8 parts of foaming agent and 2-8 parts of mildew preventive.
2. The mold-proof paint as claimed in claim 1, wherein the weight ratio of water, pigment, aluminum silicate, silicic acid gel and sodium hypochlorite is 110-: 15-25: 45-58: 10-19: 2-5.
3. The mildew-proof coating as claimed in claim 2, wherein the weight ratio of the titanium dioxide, the thickening agent, the foaming agent and the mildew-proof agent is 5-8: 5-8:4-7:3-6.
4. The mildew-proof coating as claimed in claim 3, wherein the raw materials are as follows by weight: 120-130 parts of water, 17-23 parts of pigment, 48-55 parts of aluminum silicate, 12-17 parts of silicic acid gel, 2-4 parts of sodium hypochlorite, 6-8 parts of titanium dioxide, 6-8 parts of thickening agent, 4-6 parts of foaming agent and 4-7 parts of mildew preventive.
5. The mold-resistant coating according to claim 1, wherein the mold-resistant agent comprises 2 to 4 parts of benzimidazolyl methyl formate, 2 to 6 parts of tetramethylthiuram sulfide, and 1 to 4 parts of copper powder.
6. The mildew-proof coating as claimed in claim 1, wherein the titanium dioxide is nano titanium dioxide which is non-toxic, uniform in particle size, good in thermal stability and good in dispersibility, and can improve the adhesion, aging resistance and scrubbing resistance of the coating in the environment and effectively avoid the formation of mildew caused by falling or damage of the coating.
7. The mildew-proof coating as claimed in claim 5, wherein the copper powder is nano copper powder, the average particle size of the copper powder is less than 15 μm, the copper powder can react with amino groups required by fungus propagation so as to exert mildew-proof effect, the nano copper powder has high surface activity and better mildew-proof effect, and copper is not dissolved out in a water-soluble environment, so that the mildew-proof coating has better mildew-proof property in a building environment compared with other mildew-proof agents.
8. A process for preparing a mould-proof paint according to any one of claims 1 to 7, characterized in that it comprises the following steps:
step one, proportioning, namely sequentially adding weighed water, pigment, aluminum silicate, silicic acid gel and sodium hypochlorite into a high-speed dispersion machine with the model of zk 008;
pre-dispersing, wherein the rotating speed of a zk008 high-speed dispersing machine is controlled to be 400-;
thirdly, redispersing, namely sequentially adding the weighed titanium pigment, the weighed thickening agent, the weighed foaming agent and the weighed mildewproof agent into a high-speed dispersion machine with the model of zk008 to carry out high-speed dispersion, and controlling the rotating speed of the high-speed dispersion machine of zk008 to be 800r/min to obtain pigment color paste;
and step four, packaging the finished product, and transferring the finished product into a latex barrel with the specification of 25 kg.
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| CN201911107032.0A CN110643211A (en) | 2019-11-13 | 2019-11-13 | Mildew-proof coating and production process thereof |
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| CN201911107032.0A CN110643211A (en) | 2019-11-13 | 2019-11-13 | Mildew-proof coating and production process thereof |
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| CN201911107032.0A Pending CN110643211A (en) | 2019-11-13 | 2019-11-13 | Mildew-proof coating and production process thereof |
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| CN115058141A (en) * | 2022-07-06 | 2022-09-16 | 广西维一涂料制造有限公司 | Novel interior wall coating |
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