CN113549382A - Sepiolite heat-insulating coating and preparation method thereof - Google Patents
Sepiolite heat-insulating coating and preparation method thereof Download PDFInfo
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- CN113549382A CN113549382A CN202110932696.1A CN202110932696A CN113549382A CN 113549382 A CN113549382 A CN 113549382A CN 202110932696 A CN202110932696 A CN 202110932696A CN 113549382 A CN113549382 A CN 113549382A
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Abstract
The invention discloses a sepiolite heat-insulating coating and a preparation method thereof, which relate to the field of heat-insulating coatings and comprise slurry and powder, wherein the slurry is prepared from the following components in parts by weight: 0.5-4 parts of brucite cellucotton, 2-5.5 parts of calcium silicate powder, 0.1-2 parts of polypropylene fiber, 0.3-2.5 parts of modifier, 2-3 parts of waste polystyrene particles, 7.5-12 parts of ferro-aluminate cement, 0.1-2 parts of organic composite waterproof agent, 1-45 parts of porous powder quartz and 3-5 parts of expanded perlite; the powder is prepared from the following components in parts by weight: 9-16 parts of asbestos wool, 2.5-4 parts of polyester hollow fiber, 0.16-0.25 part of penetrating agent, 0.03-0.05 part of emulsifier, 0.5 part of bentonite, 0.15-0.5 part of polyvinyl alcohol, 9 parts of sepiolite, 3 parts of polyvinyl alcohol, 0.7-1 part of sodium silicate, 0.01 part of emulsified silicone oil, 0.58 part of water glass, 1.3 parts of ceramic fiber, 0.7 part of lime and 45-75 parts of warm water. The heat-insulating coating prepared by adopting a specific formula in a specific proportion has good pressure resistance, ductility and wear resistance, and has a good heat shielding effect.
Description
Technical Field
The invention relates to the field of heat-insulating coatings, in particular to a sepiolite heat-insulating coating and a preparation method thereof.
Background
The heat-insulating coating is a novel heat-insulating material, and realizes heat insulation through low heat conductivity and high heat resistance. The product is made by adding chemical additive and high temperature adhesive into high quality natural mineral substance, and through the processes of pulping, molding, shaping, drying, finished product and packaging. The heat-insulating coating has the characteristics of water resistance, crack resistance, sound insulation, fire prevention, flame retardance, wear resistance, insulation, acid and alkali resistance, light weight, convenience in construction, long service life and the like. The heat-insulating coating can be widely applied to the industries of construction, chemical engineering, petroleum, electric power, metallurgy, ships, light spinning, storage, transportation, aerospace and the like, is mainly used for heat insulation or heat preservation (cold insulation), has good adhesive force and simple and convenient construction, and can be used for steel, cast iron, zinc plating, aluminum, copper, magnesium, reinforced concrete, stone, wood, tiles, ceramics, glass, textiles, plastics, paper and the surfaces of various coatings.
However, the flexural strength, wear resistance, ductility and compressive strength of the existing heat-insulating coating have room for further improvement, and the heat-insulating coating is limited in these aspects, and the fire-retardant rating of the heat-insulating coating is also affected, so that the application effect of the heat-insulating coating in industry is greatly reduced. In order to solve the problems, the sepiolite heat-insulating coating and the preparation method thereof need to be provided.
Disclosure of Invention
In order to solve the technical problems, the technical scheme solves the problem that the folding strength, the wear resistance, the ductility and the compressive strength of the existing heat-insulating coating provided in the background art are further improved.
In order to achieve the above purposes, the technical scheme adopted by the invention is as follows:
the sepiolite heat-insulating coating comprises slurry and powder, wherein the slurry is prepared from the following components in parts by weight: 0.5-4 parts of brucite cellucotton, 2-5.5 parts of calcium silicate powder, 0.1-2 parts of polypropylene fiber, 0.3-2.5 parts of modifier, 2-3 parts of waste polystyrene particles, 7.5-12 parts of ferro-aluminate cement, 0.1-2 parts of organic composite waterproof agent, 1-45 parts of porous powder quartz, 3-5 parts of expanded perlite, 8-12 parts of acrylic emulsion, 4-11 parts of gypsum powder, 2-6 parts of light calcium carbonate and 60-70 parts of water;
the powder is prepared from the following components in parts by weight: 9-16 parts of asbestos wool, 2.5-4 parts of polyester hollow fiber, 0.16-0.25 part of penetrating agent, 0.03-0.05 part of emulsifier, 0.5 part of bentonite, 0.15-0.5 part of polyvinyl alcohol, 9 parts of sepiolite, 3 parts of polyvinyl alcohol, 0.7-1 part of sodium silicate, 0.01 part of emulsified silicone oil, 0.58 part of water glass, 1.3 parts of ceramic fiber, 0.7 part of lime and 45-75 parts of warm water.
Preferably, the emulsifier is prepared from the following components in parts by weight: 33-40 parts of water, 12-15 parts of ethylene glycol, 32-37 parts of fatty alcohol-polyoxyethylene ether, 16-20 parts of polyethylene glycol distearate, 15 parts of polyol and 20 parts of electrolyte, wherein the polyol comprises: 5 parts of glycerol and 10 parts of propylene glycol, wherein the electrolyte comprises: 13 parts of magnesium sulfate and 7 parts of sodium chloride.
Preferably, the penetrant is prepared from the following components in parts by weight: 10 parts of fatty alcohol-polyoxyethylene ether, 13 parts of butyl cellosolve and 20 parts of dimethyl sulfoxide.
Preferably, the organic composite waterproof agent is prepared from the following components in parts by weight: 7-18 parts of acrylic acid, 40-50 parts of ethyl acrylate, 5-13 parts of acrylate copolymer, 35-40 parts of ammonia water, 5-10 parts of sodium hydroxide, 4-8 parts of chlorinated polyethylene, 5-8 parts of ferric oxide, 4-6 parts of calcium carbonate, 4-6 parts of calcium sulfate and 300-500 parts of water.
Preferably, the modifier is prepared from the following components in parts by weight: 3-5 parts of lubricating powder, 20-35 parts of polyisobutylene, 1-11 parts of methyl silicone oil, 2-6 parts of titanium dioxide and 3-5 parts of whitening agent.
Preferably, the brucite cellucotton is prepared from the following components in parts by weight: 1-3 parts of silicon dioxide, 60-66 parts of magnesium oxide, 0.3 part of aluminum oxide, 0.7-2.1 parts of ferric oxide, 4-7 parts of ferric oxide, 0.16 part of calcium oxide and 29.1 parts of water.
Further, a preparation method for the sepiolite heat-insulating coating is provided, and comprises the following steps:
s101: dividing 60-70 parts of water into two halves, pouring the half into a reaction kettle, adding brucite cellucotton, calcium silicate powder, polypropylene fiber, a modifier, waste polystyrene particles, ferrous aluminate cement and an organic composite waterproof agent according to given parts by weight, and intermittently stirring for 4 hours at the stirring speed of 120 r/min;
s102: adding the other half of water, adding porous powder quartz, expanded perlite, acrylic emulsion, gypsum powder and light calcium carbonate according to given weight parts, and continuously stirring for 1h at the stirring speed of 150 r/min;
s103: heating to 60 ℃, evaporating the volume of the mixed solution to half of the original volume, stopping heating, and recovering to normal temperature to obtain a slurry solution;
s104: equally dividing 45-75 parts of warm water into two parts, pouring one half of the warm water into a stirrer, adding asbestos wool, polyester hollow fibers, a penetrating agent, an emulsifier, bentonite, polyvinyl alcohol, sepiolite and polyvinyl alcohol according to given weight parts, and intermittently stirring for 30min at the stirring speed of 1200 r/min;
s105: adding the other half of water, adding sodium silicate, emulsified silicone oil, water glass, ceramic fiber and lime according to given weight parts, and continuously stirring for 15min at the stirring speed of 500 r/min;
s106: heating to 50 ℃, evaporating the volume of the mixed solution to 30% of the original volume, stopping heating, and recovering to normal temperature to obtain a powder solution;
s107: pouring the slurry solution and the powder solution into a reaction kettle, mixing according to the weight part ratio of 2:1, controlling the mixing temperature at 40 ℃ and the pH at 8, and standing for 2 hours after mixing;
s108: and (3) after standing, heating the mixed solution of the slurry solution and the powder solution to 100 ℃, and completely evaporating the water in the mixed solution to dryness to obtain the heat-insulating coating.
Preferably, the preparation method of the emulsifier in step S104 is:
s201: adding water, glycol, fatty alcohol-polyoxyethylene ether and polyethylene glycol distearate according to given weight parts, and intermittently stirring for 10min at a stirring speed of 120 r/min;
s202: adding glycerol and propylene glycol into the existing solution according to the given weight parts, controlling the temperature at 30 ℃, stirring for 5min, and the stirring speed at 130 r/min;
s203: adding magnesium sulfate and sodium chloride into the existing solution according to the given weight part, controlling the pH to be 7.5, stirring for 5min, wherein the stirring speed is 140 r/min;
s204: standing and evaporating to obtain the emulsifier solid.
Preferably, the preparation method of the organic composite waterproof agent in the step S101 is as follows:
s301: adding acrylic acid, ethyl acrylate, acrylate copolymer, ammonia water, sodium hydroxide, chlorinated polyethylene, ferric oxide, calcium carbonate, calcium sulfate and water according to given weight parts, controlling the pH to be 7.2, stirring for 10min, and controlling the stirring speed to be 220 r/min;
s302: standing and evaporating to obtain the organic composite waterproof agent solid.
Compared with the prior art, the invention provides a sepiolite heat-insulating coating and a preparation method thereof, and the sepiolite heat-insulating coating has the following beneficial effects:
the heat-insulating coating prepared by adopting a specific formula in a specific proportion has a good heat-shielding effect, can effectively protect the interaction between the interior of a coating and the external heat, prevent severe temperature change, cause cracks in the coating and reduce the performance of the heat-insulating coating, has good pressure resistance, ductility and wear resistance, can bear various impacts of the external environment in practical application, can keep the properties and the structure of the heat-insulating coating not to be excessively changed, and can play the role of protecting an attached object (such as steel or a wall surface) for a long time.
Drawings
FIG. 1 is a schematic flow chart of a preparation method of the sepiolite heat-insulating coating;
FIG. 2 is a schematic flow diagram of a method for preparing an emulsifier according to the present invention;
FIG. 3 is a schematic flow chart of the preparation method of the organic composite waterproof agent of the invention.
Detailed Description
The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art.
Example 1
Referring to fig. 1-3, a preparation method for sepiolite heat preservation paint comprises the following steps:
s101: dividing 60 parts of water into two halves, pouring one half into a reaction kettle, adding 0.5 part of brucite cellucotton, 2 parts of calcium silicate powder, 0.1 part of polypropylene fiber, 0.3 part of modifier, 2 parts of waste polystyrene particles, 7.5 parts of iron aluminate cement and 0.1 part of organic composite waterproof agent, and intermittently stirring for 4 hours at the stirring speed of 120 r/min;
s102: adding the other half of water, adding 1 part of porous powder quartz, 3 parts of expanded perlite, 8 parts of acrylic emulsion, 4 parts of gypsum powder and 2 parts of light calcium carbonate, and continuously stirring for 1h at the stirring speed of 150 r/min;
s103: heating to 60 ℃, evaporating the volume of the mixed solution to half of the original volume, stopping heating, and recovering to normal temperature to obtain a slurry solution;
s104: equally dividing 45 parts of warm water into two parts, pouring one half of the warm water into a stirrer, adding 9 parts of asbestos wool, 2.5 parts of polyester hollow fiber, 0.16 part of penetrating agent, 0.03 part of emulsifier, 0.5 part of bentonite, 0.15 part of polyvinyl alcohol and 9 parts of sepiolite, and intermittently stirring for 30min at the stirring speed of 1200 r/min;
s105: adding the other half of water, adding 0.7 part of sodium silicate, 0.01 part of emulsified silicone oil, 0.58 part of water glass, 1.3 parts of ceramic fiber and 0.7 part of lime, and continuously stirring for 15min at the stirring speed of 500 r/min;
s106: heating to 50 ℃, evaporating the volume of the mixed solution to 30% of the original volume, stopping heating, and recovering to normal temperature to obtain a powder solution;
s107: pouring the slurry solution and the powder solution into a reaction kettle, mixing according to the weight part ratio of 2:1, controlling the mixing temperature at 40 ℃ and the pH at 8, and standing for 2 hours after mixing;
s108: and (3) after standing, heating the mixed solution of the slurry solution and the powder solution to 100 ℃, and completely evaporating the water in the mixed solution to dryness to obtain the heat-insulating coating.
The preparation method of the emulsifier in the step S104 comprises the following steps:
s201: adding 33 parts of water, 12 parts of glycol, 32 parts of fatty alcohol-polyoxyethylene ether and 16 parts of polyethylene glycol distearate, and intermittently stirring for 10min at the stirring speed of 120 r/min;
s202: adding 5 parts of glycerol and 10 parts of propylene glycol into the existing solution, controlling the temperature at 30 ℃, stirring for 5min, and controlling the stirring speed at 130 r/min;
s203: adding 13 parts of magnesium sulfate and 7 parts of sodium chloride into the existing solution, controlling the pH to be 7.5, stirring for 5min, wherein the stirring speed is 140 r/min;
s204: standing and evaporating to obtain the emulsifier solid.
The preparation method of the organic composite waterproof agent in the step S101 comprises the following steps:
s301: 7 parts of acrylic acid, 40 parts of ethyl acrylate, 5 parts of acrylate copolymer, 35 parts of ammonia water, 5 parts of sodium hydroxide, 4 parts of chlorinated polyethylene, 5 parts of ferric oxide, 4 parts of calcium carbonate, 4 parts of calcium sulfate and 300 parts of water, wherein the pH is controlled to be 7.2, the mixture is stirred for 10min, and the stirring speed is 220 r/min;
s302: standing and evaporating to obtain the organic composite waterproof agent solid.
Parameters of the heat-insulating coating:
| shielding heat rate | 90％ | Coefficient of thermal conductivity | 1.03W/(m·K) |
| Conductivity at kilovolt | 1.082S/m | Flexural strength | ≥40MPA |
| Ductility of the alloy | Over 5 percent | Wear resistance | ≥0.40 |
| Compressive strength | ≥180MPA | Fire rating | Class A |
Example 2
Referring to fig. 1-3, a preparation method for sepiolite heat preservation paint comprises the following steps:
s101: dividing 65 parts of water into two halves, pouring the half into a reaction kettle, adding 2.5 parts of brucite cellucotton, 4 parts of calcium silicate powder, 1 part of polypropylene fiber, 1.5 parts of modifier, 2.5 parts of waste polystyrene particles, 9 parts of iron aluminate cement and 1.1 parts of organic composite waterproof agent, and intermittently stirring for 4 hours at the stirring speed of 120 r/min;
s102: adding the other half of water, adding 20 parts of porous powder quartz, 4 parts of expanded perlite, 10 parts of acrylic emulsion, 7 parts of gypsum powder and 4 parts of light calcium carbonate, and continuously stirring for 1h at the stirring speed of 150 r/min;
s103: heating to 60 ℃, evaporating the volume of the mixed solution to half of the original volume, stopping heating, and recovering to normal temperature to obtain a slurry solution;
s104: dividing 60 parts of warm water into two parts, pouring one half of the warm water into a stirrer, adding 13 parts of asbestos wool, 3.2 parts of polyester hollow fiber, 0.2 part of penetrating agent, 0.04 part of emulsifier, 0.5 part of bentonite, 0.3 part of polyvinyl alcohol and 9 parts of sepiolite, and intermittently stirring for 30min at the stirring speed of 1200 r/min;
s105: adding the other half of water, adding 0.9 part of sodium silicate, 0.01 part of emulsified silicone oil, 0.58 part of water glass, 1.3 parts of ceramic fiber and 0.7 part of lime, and continuously stirring for 15min at the stirring speed of 500 r/min;
s106: heating to 50 ℃, evaporating the volume of the mixed solution to 30% of the original volume, stopping heating, and recovering to normal temperature to obtain a powder solution;
s107: pouring the slurry solution and the powder solution into a reaction kettle, mixing according to the weight part ratio of 2:1, controlling the mixing temperature at 40 ℃ and the pH at 8, and standing for 2 hours after mixing;
s108: and (3) after standing, heating the mixed solution of the slurry solution and the powder solution to 100 ℃, and completely evaporating the water in the mixed solution to dryness to obtain the heat-insulating coating.
The preparation method of the emulsifier in the step S104 comprises the following steps:
s201: adding 33 parts of water, 12 parts of glycol, 32 parts of fatty alcohol-polyoxyethylene ether and 16 parts of polyethylene glycol distearate, and intermittently stirring for 10min at the stirring speed of 120 r/min;
s202: adding 5 parts of glycerol and 10 parts of propylene glycol into the existing solution, controlling the temperature at 30 ℃, stirring for 5min, and controlling the stirring speed at 130 r/min;
s203: adding 13 parts of magnesium sulfate and 7 parts of sodium chloride into the existing solution, controlling the pH to be 7.5, stirring for 5min, wherein the stirring speed is 140 r/min;
s204: standing and evaporating to obtain the emulsifier solid.
The preparation method of the organic composite waterproof agent in the step S101 comprises the following steps:
s301: 7 parts of acrylic acid, 40 parts of ethyl acrylate, 5 parts of acrylate copolymer, 35 parts of ammonia water, 5 parts of sodium hydroxide, 4 parts of chlorinated polyethylene, 5 parts of ferric oxide, 4 parts of calcium carbonate, 4 parts of calcium sulfate and 300 parts of water, wherein the pH is controlled to be 7.2, the mixture is stirred for 10min, and the stirring speed is 220 r/min;
s302: standing and evaporating to obtain the organic composite waterproof agent solid.
| Shielding heat rate | 91％ | Coefficient of thermal conductivity | 1.05W/(m·K) |
| Conductivity at kilovolt | 1.085S/m | Flexural strength | ≥41MPA |
| Ductility of the alloy | 5.2% or more | Wear resistance | ≥0.41 |
| Compressive strength | ≥183MPA | Fire rating | Class A |
Example 3
Referring to fig. 1-3, a preparation method for sepiolite heat preservation paint comprises the following steps:
s101: dividing 70 parts of water into two halves, pouring one half into a reaction kettle, adding 4 parts of brucite cellucotton, 5.5 parts of calcium silicate powder, 2 parts of polypropylene fiber, 2.5 parts of modifier, 3 parts of waste polystyrene particles, 12 parts of ferro-aluminate cement and 2 parts of organic composite waterproof agent, and intermittently stirring for 4 hours at the stirring speed of 120 r/min;
s102: adding the other half of water, adding 45 parts of porous powder quartz, 5 parts of expanded perlite, 12 parts of acrylic emulsion, 11 parts of gypsum powder and 6 parts of light calcium carbonate, and continuously stirring for 1h at the stirring speed of 150 r/min;
s103: heating to 60 ℃, evaporating the volume of the mixed solution to half of the original volume, stopping heating, and recovering to normal temperature to obtain a slurry solution;
s104: dividing 75 parts of warm water into two parts, pouring one half of the warm water into a stirrer, adding 16 parts of asbestos wool, 4 parts of polyester hollow fiber, 0.25 part of penetrating agent, 0.05 part of emulsifier, 0.5 part of bentonite, 0.5 part of polyvinyl alcohol and 9 parts of sepiolite, and intermittently stirring for 30min at the stirring speed of 1200 r/min;
s105: adding the other half of water, adding 1 part of sodium silicate, 0.01 part of emulsified silicone oil, 0.58 part of water glass, 1.3 parts of ceramic fiber and 0.7 part of lime, and continuously stirring for 15min at the stirring speed of 500 r/min;
s106: heating to 50 ℃, evaporating the volume of the mixed solution to 30% of the original volume, stopping heating, and recovering to normal temperature to obtain a powder solution;
s107: pouring the slurry solution and the powder solution into a reaction kettle, mixing according to the weight part ratio of 2:1, controlling the mixing temperature at 40 ℃ and the pH at 8, and standing for 2 hours after mixing;
s108: and (3) after standing, heating the mixed solution of the slurry solution and the powder solution to 100 ℃, and completely evaporating the water in the mixed solution to dryness to obtain the heat-insulating coating.
The preparation method of the emulsifier in the step S104 comprises the following steps:
s201: adding 33 parts of water, 12 parts of glycol, 32 parts of fatty alcohol-polyoxyethylene ether and 16 parts of polyethylene glycol distearate, and intermittently stirring for 10min at the stirring speed of 120 r/min;
s202: adding 5 parts of glycerol and 10 parts of propylene glycol into the existing solution, controlling the temperature at 30 ℃, stirring for 5min, and controlling the stirring speed at 130 r/min;
s203: adding 13 parts of magnesium sulfate and 7 parts of sodium chloride into the existing solution, controlling the pH to be 7.5, stirring for 5min, wherein the stirring speed is 140 r/min;
s204: standing and evaporating to obtain the emulsifier solid.
The preparation method of the organic composite waterproof agent in the step S101 comprises the following steps:
s301: 7 parts of acrylic acid, 40 parts of ethyl acrylate, 5 parts of acrylate copolymer, 35 parts of ammonia water, 5 parts of sodium hydroxide, 4 parts of chlorinated polyethylene, 5 parts of ferric oxide, 4 parts of calcium carbonate, 4 parts of calcium sulfate and 300 parts of water, wherein the pH is controlled to be 7.2, the mixture is stirred for 10min, and the stirring speed is 220 r/min;
s302: standing and evaporating to obtain the organic composite waterproof agent solid.
| Shielding heat rate | 92％ | Coefficient of thermal conductivity | 1.07W/(m·K) |
| Conductivity at kilovolt | 1.086S/m | Flexural strength | ≥44MPA |
| Ductility of the alloy | 5.4% or more | Wear resistance | ≥0.44 |
| Compressive strength | ≥185MPA | Fire rating | Class A |
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. The sepiolite heat-insulating coating is characterized by comprising slurry and powder, wherein the slurry is prepared from the following components in parts by weight: 0.5-4 parts of brucite cellucotton, 2-5.5 parts of calcium silicate powder, 0.1-2 parts of polypropylene fiber, 0.3-2.5 parts of modifier, 2-3 parts of waste polystyrene particles, 7.5-12 parts of ferro-aluminate cement, 0.1-2 parts of organic composite waterproof agent, 1-45 parts of porous powder quartz, 3-5 parts of expanded perlite, 8-12 parts of acrylic emulsion, 4-11 parts of gypsum powder, 2-6 parts of light calcium carbonate and 60-70 parts of water;
the powder is prepared from the following components in parts by weight: 9-16 parts of asbestos wool, 2.5-4 parts of polyester hollow fiber, 0.16-0.25 part of penetrating agent, 0.03-0.05 part of emulsifier, 0.5 part of bentonite, 0.15-0.5 part of polyvinyl alcohol, 9 parts of sepiolite, 3 parts of polyvinyl alcohol, 0.7-1 part of sodium silicate, 0.01 part of emulsified silicone oil, 0.58 part of water glass, 1.3 parts of ceramic fiber, 0.7 part of lime and 45-75 parts of warm water.
2. The sepiolite heat preservation coating as claimed in claim 1, wherein: the emulsifier is prepared from the following components in parts by weight: 33-40 parts of water, 12-15 parts of ethylene glycol, 32-37 parts of fatty alcohol-polyoxyethylene ether, 16-20 parts of polyethylene glycol distearate, 15 parts of polyol and 20 parts of electrolyte, wherein the polyol comprises: 5 parts of glycerol and 10 parts of propylene glycol, wherein the electrolyte comprises: 13 parts of magnesium sulfate and 7 parts of sodium chloride.
3. The sepiolite heat preservation coating as claimed in claim 1, wherein: the penetrant is prepared from the following components in parts by weight: 10 parts of fatty alcohol-polyoxyethylene ether, 13 parts of butyl cellosolve and 20 parts of dimethyl sulfoxide.
4. The sepiolite heat preservation coating as claimed in claim 1, wherein: the organic composite waterproof agent is prepared from the following components in parts by weight: 7-18 parts of acrylic acid, 40-50 parts of ethyl acrylate, 5-13 parts of acrylate copolymer, 35-40 parts of ammonia water, 5-10 parts of sodium hydroxide, 4-8 parts of chlorinated polyethylene, 5-8 parts of ferric oxide, 4-6 parts of calcium carbonate, 4-6 parts of calcium sulfate and 300-500 parts of water.
5. The sepiolite heat preservation coating as claimed in claim 1, wherein: the modifier is prepared from the following components in parts by weight: 3-5 parts of lubricating powder, 20-35 parts of polyisobutylene, 1-11 parts of methyl silicone oil, 2-6 parts of titanium dioxide and 3-5 parts of whitening agent.
6. The sepiolite heat preservation coating as claimed in claim 1, wherein: the brucite fiber cotton is prepared from the following components in parts by weight: 1-3 parts of silicon dioxide, 60-66 parts of magnesium oxide, 0.3 part of aluminum oxide, 0.7-2.1 parts of ferric oxide, 4-7 parts of ferric oxide, 0.16 part of calcium oxide and 29.1 parts of water.
7. A method for preparing the sepiolite thermal insulation coating of any one of claims 1 to 6, which is characterized by comprising the following steps:
s101: dividing 60-70 parts of water into two halves, pouring the half into a reaction kettle, adding brucite cellucotton, calcium silicate powder, polypropylene fiber, a modifier, waste polystyrene particles, ferrous aluminate cement and an organic composite waterproof agent according to given parts by weight, and intermittently stirring for 4 hours at the stirring speed of 120 r/min;
s102: adding the other half of water, adding porous powder quartz, expanded perlite, acrylic emulsion, gypsum powder and light calcium carbonate according to given weight parts, and continuously stirring for 1h at the stirring speed of 150 r/min;
s103: heating to 60 ℃, evaporating the volume of the mixed solution to half of the original volume, stopping heating, and recovering to normal temperature to obtain a slurry solution;
s104: equally dividing 45-75 parts of warm water into two parts, pouring one half of the warm water into a stirrer, adding asbestos wool, polyester hollow fibers, a penetrating agent, an emulsifier, bentonite, polyvinyl alcohol, sepiolite and polyvinyl alcohol according to given weight parts, and intermittently stirring for 30min at the stirring speed of 1200 r/min;
s105: adding the other half of water, adding sodium silicate, emulsified silicone oil, water glass, ceramic fiber and lime according to given weight parts, and continuously stirring for 15min at the stirring speed of 500 r/min;
s106: heating to 50 ℃, evaporating the volume of the mixed solution to 30% of the original volume, stopping heating, and recovering to normal temperature to obtain a powder solution;
s107: pouring the slurry solution and the powder solution into a reaction kettle, mixing according to the weight part ratio of 2:1, controlling the mixing temperature at 40 ℃ and the pH at 8, and standing for 2 hours after mixing;
s108: and (3) after standing, heating the mixed solution of the slurry solution and the powder solution to 100 ℃, and completely evaporating the water in the mixed solution to dryness to obtain the heat-insulating coating.
8. The preparation method of the sepiolite heat preservation coating according to claim 7, characterized in that: the preparation method of the emulsifier in the step S104 comprises the following steps:
s201: adding water, glycol, fatty alcohol-polyoxyethylene ether and polyethylene glycol distearate according to given weight parts, and intermittently stirring for 10min at a stirring speed of 120 r/min;
s202: adding glycerol and propylene glycol into the existing solution according to the given weight parts, controlling the temperature at 30 ℃, stirring for 5min, and the stirring speed at 130 r/min;
s203: adding magnesium sulfate and sodium chloride into the existing solution according to the given weight part, controlling the pH to be 7.5, stirring for 5min, wherein the stirring speed is 140 r/min;
s204: standing and evaporating to obtain the emulsifier solid.
9. The preparation method of the sepiolite heat preservation coating according to claim 7, characterized in that: the preparation method of the organic composite waterproof agent in the step S101 comprises the following steps:
s301: adding acrylic acid, ethyl acrylate, acrylate copolymer, ammonia water, sodium hydroxide, chlorinated polyethylene, ferric oxide, calcium carbonate, calcium sulfate and water according to given weight parts, controlling the pH to be 7.2, stirring for 10min, and controlling the stirring speed to be 220 r/min;
s302: standing and evaporating to obtain the organic composite waterproof agent solid.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117384498A (en) * | 2023-12-12 | 2024-01-12 | 山东鲁阳保温材料有限公司 | Soluble ceramic fiber reinforced composite silicate heat-insulating paint and preparation method thereof |
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| CN1308110A (en) * | 2000-12-28 | 2001-08-15 | 衡水恒基建工材料有限公司 | Composite waterproofing agent and its making process |
| CN104963220A (en) * | 2015-07-23 | 2015-10-07 | 百宁纺织化工(中山)有限公司 | Emulsifying agent formula |
| CN106866089A (en) * | 2017-03-06 | 2017-06-20 | 上海香榭丽涂料有限公司 | A kind of assembled heat insulation coating and preparation method thereof |
| CN108793928A (en) * | 2017-04-28 | 2018-11-13 | 宁夏志新源商贸有限公司 | A kind of environment protecting thermal insulating building coating and preparation method thereof |
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| CN1308110A (en) * | 2000-12-28 | 2001-08-15 | 衡水恒基建工材料有限公司 | Composite waterproofing agent and its making process |
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| CN106866089A (en) * | 2017-03-06 | 2017-06-20 | 上海香榭丽涂料有限公司 | A kind of assembled heat insulation coating and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117384498A (en) * | 2023-12-12 | 2024-01-12 | 山东鲁阳保温材料有限公司 | Soluble ceramic fiber reinforced composite silicate heat-insulating paint and preparation method thereof |
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Application publication date: 20211026 |