CN112592633A - Preparation method of heat insulation coating - Google Patents
Preparation method of heat insulation coating Download PDFInfo
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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
- C09D143/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and containing boron, silicon, phosphorus, selenium, tellurium, or a metal; Coating compositions based on derivatives of such polymers
- C09D143/04—Homopolymers or copolymers of monomers containing silicon
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- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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- C—CHEMISTRY; METALLURGY
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- 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
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
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- 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
- C09D7/65—Additives macromolecular
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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
- C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
Abstract
The invention belongs to the technical field of building materials, and particularly relates to a preparation method of a heat insulation coating. The invention uses reed straw, rice straw and bamboo dust as raw materials to form plant particles, and the plant particles are mixed with waste residue, sludge and the like, and the metal elements in the plant particles are settled and carbonized by using sodium hydroxide to form porous particles, meanwhile, as the plant particles are added, the toughness of the porous carbonized particles is improved, the heat resistance and the corrosion resistance are improved, and then the additive is put into the coating, depositing on the surface of the porous carbonized particles, finally using 200 low molecular weight polyamide and polyethylene glycol terephthalate as raw materials to form a polymer with a certain trace amount of thermal shrinkage effect, matching with the porous particles, can effectually adjust the inside heat of wall body, avoid the inside overheated of wall body, the damage that causes mixes with other raw materials at last, forms thermal-insulated coating, has effectively solved the poor problem of thermal-insulated performance of thermal-insulated coating of wall body.
Description
Technical Field
The invention belongs to the technical field of building materials, and particularly relates to a preparation method of a heat insulation coating.
Background
The heat insulation coating is applied more and more widely in the heat insulation material and building industries. Therefore, development of an environment-friendly heat-insulating coating with good heat-insulating property, corrosion resistance and convenient construction is increasingly favored in the industry. At present, the most widely used heat insulation materials of heat insulation coatings, such as expanded perlite, expanded vermiculite, floating bead, fly ash, diatomite, asbestos, glass wool, mineral wool, aluminum silicate fiber and the like, are used as heat insulation materials to achieve the purpose of heat insulation, for example, the Chinese invention patent with the patent number of ZL 02114836.8: a paint for filling hollow beads and a process for producing the same (grant publication No. CN 1194049C); the purpose of heat insulation is achieved by using reflective materials such as iron oxide red and titanium dioxide as heat insulation fillers in the existing coating, for example, the application number is 03111863.1, and the application of the Chinese invention patent discloses that: the invention discloses a water-based epoxy modified acrylic acid heat reflection heat insulation coating (with the publication number of CN1434063A), and also discloses a method for comprehensively applying the two heat insulation fillers, namely a quartz sand exterior wall decoration heat insulation brick (with the publication number of CN1202330C) in the Chinese invention patent with the patent number of ZL 03111204.8, wherein the used adhesive is also compounded by gypsum (normal temperature), cement (normal temperature), high-alumina cement (medium temperature), silica sol (high temperature) and the like from single water glass. In addition, various additives are added to improve the coating performance, such as fluidity, hardenability, hydrophobicity, high temperature resistance, reflectivity and the like. However, the above coating still needs to be improved in terms of corrosion resistance, heat insulation performance, and the like.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: aiming at the problem of poor heat insulation performance of the existing heat insulation coating of the wall body, the preparation method of the heat insulation coating is provided.
In order to solve the technical problems, the invention adopts the following technical scheme:
a preparation method of a heat insulation coating comprises the following steps:
(1) mixing the mixed particles with a sodium hydroxide solution according to a mass ratio of 1: 3-5, stirring and mixing, adding maleic anhydride accounting for 10-15% of the mass of the mixed particles, stirring and heating, standing, filtering, drying, collecting a dried substance, and mixing the dried substance with an auxiliary agent according to a mass ratio of 7-9: 2, uniformly mixing, putting into a carbonization furnace, carbonizing under the protection of nitrogen, and collecting carbide;
(2) taking 160-180 parts by weight of cyclohexanone, 100-110 parts by weight of carbide, 30-35 parts by weight of 200 low molecular weight polyamide, 20-26 parts by weight of additive, 10-13 parts by weight of polyethylene terephthalate and 9-15 parts by weight of propylene glycol;
(3) firstly, putting cyclohexanone, carbide, 200 low-molecular-weight polyamide and polyethylene glycol terephthalate into a reaction kettle, vacuumizing to 0.06-0.08 MPa, heating to 200-230 ℃, stirring and mixing, then adding propylene glycol and additives, and preserving heat;
(4) and after the heat preservation is finished, cooling to room temperature, discharging, collecting discharged materials, taking 150-180 parts of emulsion, 30-50 parts of discharged materials, 13-15 parts of film forming auxiliary agent and 4-8 parts of dispersing agent in parts by weight, and stirring and mixing to obtain the heat insulation coating.
The preparation method of the mixed particles in the step (1) comprises the following steps of taking plant particles, waste residues and sludge according to a mass ratio of 6: 2-5: 3-7, uniformly mixing, standing and drying to obtain the mixed particles.
The plant particles are obtained by crushing reed straws, rice straws and bamboo dust according to any mass ratio and sieving.
The waste residue is any one of blast furnace slag and fly ash.
The sludge is any one of municipal sludge and pond sludge.
The auxiliary agent in the step (1) is any one of ammonium bicarbonate and sodium bicarbonate.
The preparation method of the additive comprises the following steps: mixing methyl orthosilicate, potassium hydroxide and water according to a mass ratio of 3-6: 4-7: 13, putting the mixture into a reaction kettle, adding a template agent accounting for 3-7% of the mass of the calcium hydroxide, uniformly stirring, adjusting the pH value to 11, heating to 170-175 ℃ under the protection of nitrogen, stirring for reaction, standing, filtering, and spray-drying to obtain the additive.
The emulsion is any one of silicone-acrylic emulsion and acrylic emulsion.
The film-forming aid is formed by mixing propylene glycol methyl ether and cetyl alcohol ester according to a mass ratio of 5: 1-3.
The dispersing agent is any one of sodium stearate and magnesium stearate.
Compared with other methods, the method has the beneficial technical effects that:
the invention uses reed straw, rice straw and bamboo bits as raw materials to form plant particles, and mixes the plant particles with waste residue and sludge, the plant particles and waste residue are degraded to a certain extent by microorganisms in the sludge to increase the internal pore structure, then sodium hydroxide is used for settling metal elements in the plant particles and the waste residue, carbonization is carried out, porous particles are formed under the action of auxiliary agents and the sludge in the carbonization process, simultaneously, the toughness of the porous carbonization particles is improved due to the addition of the plant particles, the heat resistance and the corrosion resistance are improved, then ethyl orthosilicate and calcium hydroxide are used as raw materials to form calcium stearate whiskers which are used as additives, the calcium stearate whiskers are put into paint and deposited on the surfaces of the porous carbonization particles to form a similar net-shaped structure in the pores, the heat insulation effect is further enhanced, and finally 200 low molecular polyamide and polyethylene glycol terephthalate are used as raw materials, the polymer with certain trace pyrocondensation effect is formed, cooperates with porous granule, can effectually adjust the inside heat of wall body, avoids the inside overheat of wall body, the damage that causes, mixes with other raw materials at last, forms thermal-insulated coating, has effectively solved the poor problem of thermal-insulated performance of thermal-insulated coating of wall body.
Detailed Description
The preparation method of the mixed particles comprises the following steps of taking plant particles, waste residues and sludge according to the mass ratio of 6: 2-5: 3-7, uniformly mixing, standing overnight, and drying to obtain the mixed particles.
The plant particles are prepared by crushing reed straws, rice straws and bamboo dust according to any mass ratio, sieving with a 200-mesh sieve, and collecting sieved particles.
The waste slag is any one of blast furnace slag and fly ash.
The sludge is any one of municipal sludge and pond sludge.
The auxiliary agent is any one of ammonium bicarbonate and sodium bicarbonate.
The preparation method of the additive comprises the following steps: mixing methyl orthosilicate, potassium hydroxide and water according to a mass ratio of 3-6: 4-7: 13, putting the mixture into a reaction kettle, adding a template agent accounting for 3-7% of the weight of potassium hydroxide, uniformly stirring, adjusting the pH value to 11, heating to 170-175 ℃ under the protection of nitrogen, stirring for reaction for 8 hours, standing for 2 hours, filtering, and spray-drying to obtain the additive.
The emulsion is any one of silicone-acrylic emulsion and acrylic emulsion.
The film-forming assistant is formed by mixing propylene glycol methyl ether and cetyl alcohol ester according to the mass ratio of 5: 1-3.
The dispersant is one of sodium stearate and magnesium stearate.
A preparation method of a heat insulation coating comprises the following steps:
(1) mixing the mixed particles with a sodium hydroxide solution according to a mass ratio of 1: 3-5, stirring and mixing, adding maleic anhydride accounting for 10-15% of the mass of the mixed particles, stirring and heating to 90 ℃, standing for 6 hours, filtering, drying, collecting a dried substance, and mixing the dried substance with an auxiliary agent according to a mass ratio of 7-9: 2, uniformly mixing, putting into a carbonization furnace, carbonizing for 3 hours at 800-900 ℃ under the protection of nitrogen, and collecting carbide;
(2) taking 160-180 parts of cyclohexanone, 100-110 parts of carbide, 30-35 parts of 200 low-molecular-weight polyamide, 20-26 parts of an additive, 10-13 parts of polyethylene terephthalate and 9-15 parts of propylene glycol;
(3) firstly, putting cyclohexanone, carbide, 200 low-molecular-weight polyamide and polyethylene glycol terephthalate into a reaction kettle, vacuumizing to 0.06-0.08 MPa, heating to 200-230 ℃, stirring and mixing for 1h, then adding propylene glycol and additives, and preserving heat for 10-12 h;
(4) and after the heat preservation is finished, cooling to room temperature, discharging, collecting discharged materials, taking 150-180 parts of emulsion, 30-50 parts of discharged materials, 13-15 parts of film forming auxiliary agent and 4-8 parts of dispersing agent in parts by weight, and stirring and mixing to obtain the heat insulation coating.
Example 1
The preparation method of the mixed particles comprises the following steps of taking plant particles, waste residues and sludge according to the mass ratio of 6: 5: 7, uniformly mixing, standing overnight, and drying to obtain the mixed particles.
The plant particles are prepared by crushing reed straws, rice straws and bamboo dust according to any mass ratio, sieving with a 200-mesh sieve, and collecting sieved particles.
The waste slag is blast furnace slag.
The sludge is municipal sludge.
The auxiliary agent is ammonium bicarbonate.
The preparation method of the additive comprises the following steps: mixing methyl orthosilicate, potassium hydroxide and water according to a mass ratio of 6: 7: 13, putting into a reaction kettle, adding a template agent accounting for 7 percent of the mass of the calcium hydroxide, uniformly stirring, adjusting the pH to 11, protecting with nitrogen, heating to 175 ℃, stirring for reaction for 8 hours, standing for 2 hours, filtering, and spray-drying to obtain the additive.
The emulsion is acrylic emulsion.
The film-forming assistant is formed by mixing propylene glycol butyl ether and cetyl alcohol ester according to the mass ratio of 5: 3.
The dispersing agent is magnesium stearate.
A preparation method of a heat insulation coating comprises the following steps:
(1) mixing the mixed particles with a sodium hydroxide solution according to a mass ratio of 1: 5 stirring and mixing, adding maleic anhydride accounting for 15% of the mass of the mixed particles, stirring and heating to 90 ℃, standing for 6 hours, filtering, drying, collecting a dried substance, and mixing the dried substance with the auxiliary agent according to a mass ratio of 9: 2, uniformly mixing, putting into a carbonization furnace, carbonizing for 3 hours at 900 ℃ under the protection of nitrogen, and collecting carbide;
(2) taking 180 parts of cyclohexanone, 100-110 parts of carbide, 30-35 parts of 200 low-molecular-weight polyamide, 26 parts of additive, 13 parts of polyethylene terephthalate and 9-15 parts of propylene glycol;
(3) firstly, putting cyclohexanone, carbide, 200 low molecular weight polyamide and polyethylene glycol terephthalate into a reaction kettle, vacuumizing to 0.08MPa, heating to 230 ℃, stirring and mixing for 1h, then adding propylene glycol and additives, and keeping the temperature for 12 h;
(4) and after the heat preservation is finished, cooling to room temperature, discharging, collecting discharged materials, taking 180 parts of emulsion, 50 parts of discharged materials, 15 parts of film forming auxiliary agent and 8 parts of dispersing agent in parts by weight, and stirring and mixing to obtain the heat insulation coating.
Example 2
The preparation method of the mixed particles comprises the following steps of taking plant particles, waste residues and sludge according to the mass ratio of 6: 3: 5, uniformly mixing, standing overnight, and drying to obtain the mixed particles.
The plant particles are prepared by crushing reed straws, rice straws and bamboo dust according to any mass ratio, sieving with a 200-mesh sieve, and collecting sieved particles.
The waste residue is fly ash.
The sludge is municipal sludge.
The auxiliary agent is ammonium bicarbonate.
The preparation method of the additive comprises the following steps: methyl orthosilicate, potassium hydroxide and water according to a mass ratio of 4: 5: 13, putting into a reaction kettle, adding a template agent accounting for 5 percent of the mass of the potassium hydroxide, uniformly stirring, adjusting the pH to 11, protecting with nitrogen, heating to 173 ℃, stirring for reaction for 8 hours, standing for 2 hours, filtering, and spray-drying to obtain the additive.
The emulsion is silicone-acrylate emulsion.
The film-forming assistant is formed by mixing propylene glycol methyl ether and cetyl alcohol ester according to the mass ratio of 5: 2.
The dispersing agent is magnesium stearate.
A preparation method of a heat insulation coating comprises the following steps:
(1) mixing the mixed particles with a sodium hydroxide solution according to a mass ratio of 1: 4, stirring and mixing, adding maleic anhydride accounting for 13% of the mass of the mixed particles, stirring and heating to 90 ℃, standing for 6 hours, filtering, drying, collecting a dried substance, and mixing the dried substance with the auxiliary agent according to a mass ratio of 8: 2, uniformly mixing, putting into a carbonization furnace, carbonizing for 3 hours at 850 ℃ under the protection of nitrogen, and collecting carbide;
(2) according to parts by weight, 170 parts of cyclohexanone, 105 parts of carbide, 33 parts of 200 low molecular polyamide, 23 parts of additive, 12 parts of polyethylene terephthalate and 12 parts of propylene glycol are taken;
(3) firstly, putting cyclohexanone, carbide, 200 low-molecular-weight polyamide and polyethylene glycol terephthalate into a reaction kettle, vacuumizing to 0.07MPa, heating to 210 ℃, stirring and mixing for 1h, then adding propylene glycol and additives, and keeping the temperature for 11 h;
(4) and after the heat preservation is finished, cooling to room temperature, discharging, collecting discharged materials, taking 170 parts of emulsion, 40 parts of discharged materials, 14 parts of film forming auxiliary agent and 6 parts of dispersing agent in parts by weight, and stirring and mixing to obtain the heat insulation coating.
Example 3
The preparation method of the mixed particles comprises the following steps of taking plant particles, waste residues and sludge according to the mass ratio of 6: 2: 3, uniformly mixing, standing overnight, and drying to obtain the mixed particles.
The plant particles are prepared by crushing reed straws, rice straws and bamboo dust according to any mass ratio, sieving with a 200-mesh sieve, and collecting sieved particles.
The waste slag is blast furnace slag.
The sludge is municipal sludge.
The auxiliary agent is ammonium bicarbonate.
The preparation method of the additive comprises the following steps: mixing methyl orthosilicate, potassium hydroxide and water according to a mass ratio of 3: 4: 13, putting into a reaction kettle, adding a template agent accounting for 3 percent of the mass of the potassium hydroxide, uniformly stirring, adjusting the pH to 11, protecting with nitrogen, heating to 170 ℃, stirring for reaction for 8 hours, standing for 2 hours, filtering, and spray-drying to obtain the additive.
The emulsion is silicone-acrylate emulsion.
The film-forming assistant is formed by mixing propylene glycol methyl ether and cetyl alcohol ester according to the mass ratio of 5: 1.
The dispersant is sodium stearate.
A preparation method of a heat insulation coating comprises the following steps:
(1) mixing the mixed particles with a sodium hydroxide solution according to a mass ratio of 1: 3, stirring and mixing, adding maleic anhydride accounting for 10% of the mass of the mixed particles, stirring and heating to 90 ℃, standing for 6 hours, filtering, drying, collecting a dried substance, and mixing the dried substance with the auxiliary agent according to a mass ratio of 7: 2, uniformly mixing, putting into a carbonization furnace, carbonizing for 3 hours at 800 ℃ under the protection of nitrogen, and collecting carbide;
(2) taking 160 parts of cyclohexanone, 100 parts of carbide, 30 parts of 200 low-molecular-weight polyamide, 20 parts of additive, 10 parts of polyethylene terephthalate and 9 parts of propylene glycol;
(3) firstly, putting cyclohexanone, carbide, 200 low-molecular-weight polyamide and polyethylene glycol terephthalate into a reaction kettle, vacuumizing to 0.06MPa, heating to 200 ℃, stirring and mixing for 1h, then adding propylene glycol and additives, and preserving heat for 10 h;
(4) and after the heat preservation is finished, cooling to room temperature, discharging, collecting discharged materials, taking 150 parts of emulsion, 30 parts of discharged materials, 13 parts of film forming auxiliary agent and 4 parts of dispersing agent in parts by weight, and stirring and mixing to obtain the heat insulation coating.
Comparative example 1
The preparation method of the mixed particles comprises the following steps of taking plant particles, waste residues and sludge according to the mass ratio of 6: 3: 5, uniformly mixing, standing overnight, and drying to obtain the mixed particles.
The plant particles are prepared by crushing reed straws, rice straws and bamboo dust according to any mass ratio, sieving with a 200-mesh sieve, and collecting sieved particles.
The waste residue is fly ash.
The sludge is municipal sludge.
The auxiliary agent is ammonium bicarbonate.
The emulsion is silicone-acrylate emulsion.
The film-forming assistant is formed by mixing propylene glycol methyl ether and cetyl alcohol ester according to the mass ratio of 5: 2.
The dispersing agent is magnesium stearate.
A preparation method of a heat insulation coating comprises the following steps:
(1) mixing the mixed particles with a sodium hydroxide solution according to a mass ratio of 1: 4, stirring and mixing, adding maleic anhydride accounting for 13% of the mass of the mixed particles, stirring and heating to 90 ℃, standing for 6 hours, filtering, drying, collecting a dried substance, and mixing the dried substance with the auxiliary agent according to a mass ratio of 8: 2, uniformly mixing, putting into a carbonization furnace, carbonizing for 3 hours at 850 ℃ under the protection of nitrogen, and collecting carbide;
(2) according to parts by weight, 170 parts of cyclohexanone, 105 parts of carbide, 33 parts of 200 low molecular weight polyamide, 12 parts of polyethylene terephthalate and 12 parts of propylene glycol are taken;
(3) firstly, putting cyclohexanone, carbide, 200 low-molecular-weight polyamide and polyethylene glycol terephthalate into a reaction kettle, vacuumizing to 0.07MPa, heating to 210 ℃, stirring and mixing for 1h, then adding propylene glycol and additives, and keeping the temperature for 11 h;
(4) and after the heat preservation is finished, cooling to room temperature, discharging, collecting discharged materials, taking 170 parts of emulsion, 40 parts of discharged materials, 14 parts of film forming auxiliary agent and 6 parts of dispersing agent in parts by weight, and stirring and mixing to obtain the heat insulation coating.
Comparative example 2
The preparation method of the additive comprises the following steps: mixing methyl orthosilicate, potassium hydroxide and water according to a mass ratio of 4: 5: 13, putting into a reaction kettle, adding a template agent accounting for 5 percent of the mass of the calcium hydroxide, uniformly stirring, adjusting the pH to 11, carrying out nitrogen protection, heating to 173 ℃, stirring for reaction for 8 hours, standing for 2 hours, filtering, and carrying out spray drying to obtain the additive.
The emulsion is silicone-acrylate emulsion.
The film-forming assistant is formed by mixing propylene glycol methyl ether and cetyl alcohol ester according to the mass ratio of 5: 2.
The dispersing agent is magnesium stearate.
A preparation method of a heat insulation coating comprises the following steps:
(1) according to the parts by weight, 170 parts of cyclohexanone, 33 parts of 200 low molecular polyamide, 23 parts of additive, 12 parts of polyethylene terephthalate and 12 parts of propylene glycol are taken;
(2) firstly, putting cyclohexanone, 200 low molecular weight polyamide and polyethylene glycol terephthalate into a reaction kettle, vacuumizing to 0.07MPa, heating to 210 ℃, stirring and mixing for 1h, then adding propylene glycol and additives, and preserving heat for 11 h;
(3) and after the heat preservation is finished, cooling to room temperature, discharging, collecting discharged materials, taking 170 parts of emulsion, 40 parts of discharged materials, 14 parts of film forming auxiliary agent and 6 parts of dispersing agent in parts by weight, and stirring and mixing to obtain the heat insulation coating.
Examples 1-3 and comparative examples 1-2 were tested according to JC/T1040-2007, with the test results shown in Table 1:
table 1:
| test items | Example 1 | Example 2 | Example 3 | Comparative example 1 | Comparative example 2 |
| Insulating temperature range (. degree. C.) | 50 | 53 | 52 | 48 | 31 |
| Temperature change resistance | No abnormality | No abnormality | No abnormality | No abnormality | No abnormality |
In conclusion, the heat insulation coating obtained by the invention has a good heat insulation effect.
Claims (10)
1. The preparation method of the heat insulation coating is characterized by comprising the following steps:
(1) mixing the mixed particles with a sodium hydroxide solution according to a mass ratio of 1: 3-5, stirring and mixing, adding maleic anhydride accounting for 10-15% of the mass of the mixed particles, stirring and heating, standing, filtering, drying, collecting a dried substance, and mixing the dried substance with an auxiliary agent according to a mass ratio of 7-9: 2, uniformly mixing, putting into a carbonization furnace, carbonizing under the protection of nitrogen, and collecting carbide;
(2) taking 160-180 parts by weight of cyclohexanone, 100-110 parts by weight of carbide, 30-35 parts by weight of 200 low molecular weight polyamide, 20-26 parts by weight of additive, 10-13 parts by weight of polyethylene terephthalate and 9-15 parts by weight of propylene glycol;
(3) firstly, placing acetone, carbide, 200 low-molecular-weight polyamide and polyethylene glycol terephthalate into a reaction kettle, vacuumizing to 0.06-0.08 MPa, heating to 200-230 ℃, stirring and mixing, then adding ethylene glycol and additives, and preserving heat;
(4) and after the heat preservation is finished, cooling to room temperature, discharging, collecting discharged materials, taking 150-180 parts of emulsion, 30-50 parts of discharged materials, 13-15 parts of film forming auxiliary agent and 4-8 parts of dispersing agent in parts by weight, and stirring and mixing to obtain the heat insulation coating.
2. The preparation method of the heat-insulating coating according to claim 1, wherein the preparation method of the mixed particles in the step (1) is to take plant particles, waste residues and sludge according to a mass ratio of 6: 2-5: 3-7, uniformly mixing, standing and drying to obtain the mixed particles.
3. The method for preparing the heat-insulating material according to claim 2, wherein the plant particles are obtained by crushing reed straws, rice straws and bamboo dust according to any mass ratio and sieving.
4. The method for preparing a heat insulating material according to claim 2, wherein the waste slag is any one of blast furnace slag and fly ash.
5. The method for preparing the heat insulating material according to claim 2, wherein the sludge is any one of municipal sludge and pond sludge.
6. The method for preparing the thermal insulating coating according to claim 1, wherein the adjuvant in the step (1) is any one of ammonium bicarbonate and sodium bicarbonate.
7. The preparation method of the heat-insulating coating according to claim 1, wherein the preparation method of the additive comprises the following steps: mixing methyl orthosilicate and potassium hydroxide water according to the mass ratio of 3-6: 4-7: 13, putting the mixture into a reaction kettle, adding a template agent accounting for 3-7% of the weight of the potassium hydroxide, uniformly stirring, adjusting the pH value to 11, heating to 170-175 ℃ under the protection of nitrogen, stirring for reaction, standing, filtering, and spray-drying to obtain the additive.
8. The exterior wall thermal insulation coating of claim 1, wherein the emulsion is any one of silicone-acrylic emulsion and acrylic emulsion.
9. The exterior wall heat-insulating coating as claimed in claim 1, wherein the film-forming assistant is propylene glycol methyl ether cetyl alcohol ester mixed according to a mass ratio of 5: 1-3.
10. The exterior wall heat-insulating coating material of claim 1, wherein the dispersing agent is any one of sodium stearate and magnesium stearate.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018070697A (en) * | 2016-10-26 | 2018-05-10 | 株式会社さんのう | Thermal barrier-thermal insulation paint |
| CN108485419A (en) * | 2018-05-04 | 2018-09-04 | 合肥天沃能源科技有限公司 | A kind of external wall special-purpose thermal insulation insulating moulding coating and preparation method thereof |
| CN108546445A (en) * | 2018-07-06 | 2018-09-18 | 佛山陵朝新材料有限公司 | A kind of preparation method of high-strength waterproof putty paste |
| CN110256882A (en) * | 2019-06-12 | 2019-09-20 | 蓝海利 | A kind of outer wall heat-insulating coating |
| CN110563298A (en) * | 2019-07-29 | 2019-12-13 | 辛巧玲 | Municipal sludge dewatering treatment method |
| CN112159143A (en) * | 2020-10-15 | 2021-01-01 | 尹贻成 | Preparation method of additive particles for inorganic wall thermal insulation material |
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2021
- 2021-01-15 CN CN202110052774.9A patent/CN112592633A/en active Pending
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| JP2018070697A (en) * | 2016-10-26 | 2018-05-10 | 株式会社さんのう | Thermal barrier-thermal insulation paint |
| CN108485419A (en) * | 2018-05-04 | 2018-09-04 | 合肥天沃能源科技有限公司 | A kind of external wall special-purpose thermal insulation insulating moulding coating and preparation method thereof |
| CN108546445A (en) * | 2018-07-06 | 2018-09-18 | 佛山陵朝新材料有限公司 | A kind of preparation method of high-strength waterproof putty paste |
| CN110256882A (en) * | 2019-06-12 | 2019-09-20 | 蓝海利 | A kind of outer wall heat-insulating coating |
| CN110563298A (en) * | 2019-07-29 | 2019-12-13 | 辛巧玲 | Municipal sludge dewatering treatment method |
| CN112159143A (en) * | 2020-10-15 | 2021-01-01 | 尹贻成 | Preparation method of additive particles for inorganic wall thermal insulation material |
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