CN112175438B - Heat-insulating dry powder putty and using method thereof - Google Patents
Heat-insulating dry powder putty and using method thereof Download PDFInfo
- Publication number
- CN112175438B CN112175438B CN202011388444.9A CN202011388444A CN112175438B CN 112175438 B CN112175438 B CN 112175438B CN 202011388444 A CN202011388444 A CN 202011388444A CN 112175438 B CN112175438 B CN 112175438B
- Authority
- CN
- China
- Prior art keywords
- parts
- component
- water
- putty
- titanium dioxide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
- C09D5/34—Filling pastes
-
- 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
- C09D5/18—Fireproof paints including high temperature resistant paints
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
- E04F13/02—Coverings or linings, e.g. for walls or ceilings of plastic materials hardening after applying, e.g. plaster
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Paints Or Removers (AREA)
- Building Environments (AREA)
Abstract
The invention relates to thermal insulation dry powder putty and a using method thereof. The heat-preservation dry powder putty comprises a component A and a component B; the component A is prepared from the following raw materials in parts by weight: 40-60 parts of gypsum; 4-8 parts of aluminum oxide; the component B is prepared from the following raw materials in parts by weight: 5-15 parts of titanium dioxide coated hollow ceramic microspheres. The heat-preservation dry powder putty can be scraped or sprayed by 2mm-5mm on the wall surface, can play the roles of heat insulation and preservation and reducing the energy consumption of the building without increasing the construction process and reducing the building area, and is suitable for residential buildings adopting the energy consumption of the separated room type and the intermittent type in hot summer and cold winter areas.
Description
Technical Field
The invention relates to the field of building materials, in particular to thermal insulation dry powder putty and a using method thereof.
Background
In hot summer and cold winter areas of China, the summer is hard to be stuffy and hot, and the winter is moist and cold. Along with the improvement of economic living standard of people, the requirement on the comfort level of indoor environment is higher and higher, air-conditioning refrigeration and heating become main improvement means in hot summer and cold winter areas, but the problem of building energy consumption increase is brought along with the main improvement means. At present, building energy conservation is an important national strategy in China, and energy conservation of an enclosure structure is one of the most effective ways for building energy conservation.
Residential buildings in summer hot and winter cold areas of China commonly adopt separated and intermittent energy utilization. The energy consumption of the branch rooms is relative to the energy consumption of the whole building, and the energy consumption of the rooms is taken as an energy consumption unit, namely partial space energy consumption; intermittent energy use is relative to continuous energy use, i.e., partial time energy use. However, the energy-saving design of residential buildings in hot summer and cold winter areas in China often neglects the characteristic of division and intermittence of the residential buildings, and the adopted energy-saving mode translates the wall heat-preservation mode of heat preservation outside the outer wall of the central heating area in the north and the wall heat-preservation mode of the whole space or the whole space part time to a great extent.
In a wall heat insulation system of the whole space and the whole time or the whole space and the partial time, the heat insulation of the outer wall is mainly considered, and the heat insulation of the inner wall is less considered. When the wall heat preservation mode of the whole space or the whole space and partial time of the central heating area in the north is translated to the residential building of the district, the room and the external environment of the China with the characteristics of the energy consumption in the branch rooms, the temperature difference between the non-energy-consuming room and the external environment is small, the energy-consuming room not only generates the convection heat exchange with the external environment, but also generates the convection heat exchange with the non-energy-consuming room, and therefore, the wall energy consumption comprises the total energy consumption of the outer wall and the total energy consumption of the inner wall. In addition, under the mode of compartment and intermittent energy utilization, the external thermal insulation of the external wall can reduce the heat load of the building, but can not necessarily reduce the cold load, even increase the cold load, and show 'energy conservation reaction'.
Therefore, it is necessary to increase the heat insulation effect of the inner wall on the basis of considering the external heat insulation of the outer wall. And present interior wall heat preservation mode adopts the construction mode of pasting the heated board usually, not only can increase the construction process, reduces indoor building area, still can increase the building and bear a burden.
Disclosure of Invention
Based on the characteristics of indoor and intermittent energy utilization of residential buildings in hot summer and cold winter areas, the invention provides the heat-insulating dry powder putty which can be scraped or sprayed on the wall surface by 2-5 mm, and can play the roles of heat insulation and energy consumption reduction without increasing construction procedures and reducing building area.
The heat-preservation dry powder putty comprises a component A and a component B;
the component A is prepared from the following raw materials in parts by weight:
40-60 parts of gypsum;
4-8 parts of aluminum oxide;
the component B is prepared from the following raw materials in parts by weight:
5-15 parts of titanium dioxide coated hollow ceramic microspheres.
In a preferred embodiment, the preparation raw materials of the component B comprise the following components in parts by weight:
10-15 parts of titanium dioxide coated hollow ceramic microspheres.
Generally, the heat insulation performance of the putty is improved along with the increase of the addition amount of the titanium dioxide coated hollow ceramic microspheres, but when the addition amount exceeds 15 parts, the hollow ceramic microspheres influence the bonding strength and the mechanical performance of the putty, and after the addition amount is increased to a certain degree, the heat insulation performance is also reduced due to the dispersion problem of the hollow ceramic microspheres.
In a preferred embodiment, the mesh number of the titanium dioxide coated hollow ceramic microspheres is 1000-1500 meshes. Within this range, a dense vacuum layer can be formed in the putty, and the heat insulation property is improved.
In a preferred embodiment, the titanium dioxide is rutile titanium dioxide. Compared with the characteristics of soft structure, high whiteness and easy dispersion of anatase titanium dioxide, the rutile titanium dioxide has compact crystal structure, high relative density and particle hardness and stronger tinting strength. The rutile titanium dioxide has the best reflection performance on sunlight in white pigment fillers, and has the reflectivity of 0.85 on all bands of sunlight.
In a preferred embodiment, the mesh number of the alumina is 325 mesh to 400 mesh. If the mesh number of the aluminum oxide is less than 325 meshes, the particle size is larger and the apparent effect is poor; on the contrary, if the mesh number of the alumina is more than 400 meshes, the oil absorption is increased, the viscosity is increased, and the workability is deteriorated.
In a preferred embodiment, the gypsum is desulfurized gypsum. The desulfurized gypsum is an industrial byproduct after calcination, and is lower in price and more environment-friendly.
In a preferred embodiment, the raw materials for preparing the component A also comprise mica powder. The sheet structure of mica powder is utilized, so that heat energy is better dispersed from the inner structure of the putty, and the diffusion speed of the heat energy is better hindered, thereby realizing a certain heat preservation effect. Meanwhile, mica also has excellent ultraviolet ray and infrared ray shielding performance, and mica powder has similar reflection performance with titanium dioxide.
In a preferred embodiment, the preparation raw materials of the A component comprise the following components in parts by weight:
40-60 parts of gypsum;
4-8 parts of aluminum oxide;
4-8 parts of mica powder.
The addition amount of the mica powder is within the range of 4-8 parts, and the flaky structure can block the conduction of heat flow in the putty, reduce the heat conductivity coefficient and enhance the heat insulation property; if the addition amount of the mica powder is more than 8 parts, the mica powder is mutually overlapped to form a continuous framework, which is beneficial to heat flow transmission, thus increasing the heat conductivity coefficient and being not beneficial to heat preservation.
In a preferred embodiment, the mica powder has a mesh size selected from 325 mesh to 400 mesh. If the mesh number of the mica powder is less than 325 meshes, the particle size is larger and the apparent effect is poor; on the contrary, if the mesh number of the mica powder is larger than 400 meshes, the oil absorption is increased, the viscosity is increased, and the workability is deteriorated.
In a preferred embodiment, the preparation raw materials of the component A also comprise redispersible latex powder, heavy calcium carbonate, a retarder, a water-retaining agent and a water reducing agent.
The redispersible latex powder is used as an organic cementing material and is matched with desulfurized gypsum for use, so that the workability, water resistance and bonding strength of the putty can be improved. Preferably, the redispersible latex powder is selected from one or more of vinyl acetate, ethylene, vinyl acetate, vinyl versatate, acrylate, homopolymer of styrene and copolymer of styrene.
The coarse whiting has low price and high whiteness, and the coarse whiting can reduce the cost, improve the covering power, improve the flowability of the coating and improve the construction performance by adding the coarse whiting.
The retarder can prolong the setting time of the gypsum and improve the workability; preferably, the retarder is selected from one or more of organic acid, soluble salt thereof and protamine.
The water-retaining agent ensures that the gypsum putty is fully hydrated, and the interface bonding strength is improved; preferably, the water retaining agent is selected from one or more of hydroxypropyl methyl cellulose ether and hydroxyethyl cellulose ether.
The water reducing agent enables the gypsum powder to be uniformly dispersed, and improves the fluidity of the putty; preferably, the water reducing agent is selected from one or more of naphthalene series and melamine series.
In a preferred embodiment, the preparation raw materials of the A component comprise the following components in parts by weight:
40-60 parts of gypsum;
4-8 parts of aluminum oxide;
4-8 parts of mica powder;
1-5 parts of redispersible latex powder;
20-54 parts of coarse whiting;
0.05 to 0.2 portion of retarder;
0.2 to 0.8 portion of water-retaining agent;
0.1 to 0.6 portion of water reducing agent.
If the addition amount of the redispersible latex powder is less than 1 part, the bonding strength and the water resistance of the putty are influenced; if the addition amount of the redispersible latex powder is more than 5 parts, the performance is not obviously improved, and the cost is also increased.
If the adding amount of the heavy calcium is more than 54 parts, the heat insulation performance of the putty is influenced.
If the addition amount of the retarder is less than 0.05 part, the retarding effect cannot be achieved; if the addition amount of the retarder is more than 0.2 part, the bonding strength of the putty is influenced.
If the addition amount of the water-retaining agent is less than 0.2 part, the water-retaining effect cannot be achieved; if the amount of the water-retaining agent is more than 0.8 part, the viscosity increases, which affects workability and adhesive strength.
If the addition amount of the water reducing agent is less than 0.1 part, the effect of improving the fluidity cannot be achieved; if the addition amount of the water reducing agent is more than 0.6, the fluidity is not obviously improved, and the cost is also increased.
The invention also provides a use method of the heat-preservation dry powder putty.
The use method of the heat-preservation dry powder putty comprises the following steps:
mixing the component A and water, stirring at the speed of 600-800 rpm, and standing to obtain a mixture;
mixing the mixture and the component B, and stirring at the speed of 100rpm-200 rpm;
the component A is prepared from the following raw materials in parts by weight:
40-60 parts of gypsum;
4-8 parts of aluminum oxide;
the component B is prepared from the following raw materials in parts by weight:
5-15 parts of titanium dioxide coated hollow ceramic microspheres.
Compared with the prior art, the invention has the following beneficial effects:
the component A is prepared by taking gypsum and aluminum oxide as main raw materials, the component B is prepared by taking titanium dioxide coated hollow ceramic microspheres as main raw materials, and the heat-insulating dry powder putty is prepared, can be scraped or sprayed on a wall surface by 2-5 mm, can play the roles of heat insulation and preservation and reducing building energy consumption without increasing construction procedures and reducing building area. Compared with the simple hollow ceramic microspheres, the titanium dioxide-coated hollow ceramic microspheres have higher reflectance in visible light and near infrared regions and better heat insulation performance. On the basis, aluminum oxide is matched and used, has smaller particle size, strong surface activity and high refractive index, and can form a high-quality reflecting layer together with the titanium dioxide coated hollow ceramic microspheres, so that the heat preservation and insulation performance of the putty is further improved. Meanwhile, the plaster is used as the adhesive material of the putty, is green and environment-friendly, has small heat conductivity coefficient, is beneficial to improving the heat preservation effect of the putty, is light in weight and fireproof, and also has the function of 'breathing' capable of adjusting the indoor air humidity within a certain range.
Detailed Description
The present invention will be described in further detail with reference to specific examples. The present invention may be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
A heat-insulating dry powder putty comprises a component A and a component B;
the component A is prepared from the following raw materials in parts by weight:
40-60 parts of gypsum;
4-8 parts of aluminum oxide;
the component B is prepared from the following raw materials in parts by weight:
5-15 parts of titanium dioxide coated hollow ceramic microspheres.
The hollow ceramic microspheres mainly comprise silicon dioxide and aluminum oxide, are hollow, contain nitrogen, carbon dioxide and other inert gases, have a heat conductivity coefficient of 0.04-0.055W/(m ∙ K), and can form a compact vacuum layer in the putty after being added into the putty, thereby effectively preventing heat radiation and heat conduction and reducing the energy consumption of the wall body. When the addition amount is about 4 percent of the total weight of the putty, a coating with the thickness of 300 mu m is manufactured, and the heat insulation internal and external temperature difference can reach 15 ℃. Besides the heat insulation effect, the hollow ceramic microspheres also have the advantages of acid and alkali resistance, radiation resistance, flame retardance, insulation, low oil absorption rate, no toxicity, high filling rate, good fluidity and the like.
Compared with the pure hollow ceramic microspheres, the titanium dioxide-coated hollow ceramic microspheres are used in the invention. In the solar heat energy ratio, the ultraviolet light accounts for 5%, the visible light and the near infrared light accounts for 45%, and the others account for 5%. The titanium dioxide has the characteristics of large refractive index and high near-infrared reflectivity, and the surface of the hollow ceramic microsphere is coated with a titanium dioxide film, so that after the hollow ceramic microsphere coated with the titanium dioxide is prepared, the reflection ratio of the hollow ceramic microsphere in visible light is up to 88.4 percent, which is more than 10 percent on average than that of the simple hollow ceramic microsphere; the reflection ratio of near infrared light reaches 77 percent, which is 21 percent higher than that of hollow ceramic microspheres. After the putty is added into the putty, the heat insulation performance of the putty is 15-25% better than that of the putty added with the pure hollow ceramic micro-beads.
Generally, the heat insulation performance of the putty is improved along with the increase of the addition amount of the titanium dioxide coated hollow ceramic microspheres, but when the addition amount exceeds 15 parts, the hollow ceramic microspheres influence the bonding strength and the mechanical performance of the putty, and after the addition amount is increased to a certain degree, the heat insulation performance is also reduced due to the dispersion problem of the hollow ceramic microspheres. Preferably, the weight part of the titanium dioxide coated hollow ceramic microspheres is 10-15 parts.
Preferably, the titanium dioxide is rutile titanium dioxide. Compared with the characteristics of soft structure, high whiteness and easy dispersion of anatase titanium dioxide, the rutile titanium dioxide has compact crystal structure, high relative density and particle hardness and stronger tinting strength. The rutile titanium dioxide has the best reflection performance on sunlight in white pigment fillers, and has the reflectivity of 0.85 on all bands of sunlight.
Preferably, the mesh number of the titanium dioxide coated hollow ceramic microspheres is 1000-1500 meshes. Within this range, a dense vacuum layer can be formed in the putty, and the heat insulation property is improved.
In one embodiment, the preparation method of the titanium dioxide coated hollow ceramic microspheres comprises the following steps:
weighing 5g of ceramic microspheres, putting 50mL of distilled water, dripping 10 drops of alanine glutamate, stirring and dispersing in a 500mL four-neck flask, adjusting the pH of the system to 2.0 by hydrochloric acid solution, adding a proper amount of urea, heating to 70-80 ℃, adding 10% of stannic chloride solution, precipitating tin salt by utilizing OH-generated by hydrolysis of the urea and uniformly depositing the tin salt on the surfaces of the ceramic microspheres, adding TiCl4Adding appropriate amount of urea into the solution, reacting at 70 deg.C for 1 hr, heating to 80 deg.C, reacting for 2 hr, and aging at 70 deg.CAnd (4) 1 h. Filtering the micro-beads, roasting at 300 ℃ to remove crystal water, and then roasting at 900 ℃ for 30min to obtain the rutile-phase titanium dioxide coated ceramic micro-beads.
And aluminum oxide is added, has smaller particle size, strong surface activity and high refractive index, and can form a high-quality reflecting layer together with the titanium dioxide coated hollow ceramic microspheres, so that the heat preservation and insulation performance of the putty is further improved.
Preferably, the mesh number of the aluminum oxide is 325-400 meshes. If the mesh number of the aluminum oxide is less than 325 meshes, the particle size is larger and the apparent effect is poor; on the contrary, if the mesh number of the alumina is more than 400 meshes, the oil absorption is increased, the viscosity is increased, and the workability is deteriorated.
If the addition amount of the aluminum oxide is less than 4 parts, a compact reflecting layer cannot be formed, and the infrared reflectivity is influenced; if the addition amount of the aluminum trioxide is more than 8 parts, the performance is not obviously improved, and the cost is also increased.
The putty is added with the gypsum as a gluing material of the putty, is green and environment-friendly, has small heat conductivity coefficient, is beneficial to improving the heat preservation effect of the putty, is light in weight and fireproof, and also has the function of 'breathing' capable of adjusting the indoor air humidity within a certain range.
Preferably, the gypsum is desulfurized gypsum. The desulfurized gypsum is an industrial byproduct after calcination, and is lower in price and more environment-friendly.
If the addition amount of the gypsum is less than 40 parts, the bonding strength is insufficient; if the addition amount of the gypsum is more than 60 parts, the heat insulation performance of the putty is affected.
The heat-insulating dry powder putty can be scraped or sprayed on the wall surface by 2mm-5mm, and can play the roles of heat insulation and building energy consumption reduction without increasing construction procedures and reducing building area.
In one embodiment, the raw materials for preparing the component A also comprise mica powder. The sheet structure of mica powder is utilized, so that heat energy is better dispersed from the inner structure of the putty, and the diffusion speed of the heat energy is better hindered, thereby realizing a certain heat preservation effect. Meanwhile, mica also has excellent ultraviolet ray and infrared ray shielding performance, and mica powder has similar reflection performance with titanium dioxide.
Preferably, the preparation raw materials of the component A comprise the following components in parts by weight:
40-60 parts of gypsum;
4-8 parts of aluminum oxide;
4-8 parts of mica powder.
The addition amount of the mica powder is within the range of 4-8 parts, and the flaky structure can block the conduction of heat flow in the putty, reduce the heat conductivity coefficient and enhance the heat insulation property; if the addition amount of the mica powder is more than 8 parts, the mica powder is mutually overlapped to form a continuous framework, which is beneficial to heat flow transmission, thus increasing the heat conductivity coefficient and being not beneficial to heat preservation.
Preferably, the mesh number of the mica powder is selected from 325 meshes to 400 meshes. If the mesh number of the mica powder is less than 325 meshes, the particle size is larger and the apparent effect is poor; on the contrary, if the mesh number of the mica powder is larger than 400 meshes, the oil absorption is increased, the viscosity is increased, and the workability is deteriorated.
In one embodiment, the preparation raw materials of the component A also comprise redispersible latex powder, heavy calcium carbonate, a retarder, a water-retaining agent and a water reducing agent.
The redispersible latex powder is used as an organic cementing material and is matched with desulfurized gypsum for use, so that the workability, water resistance and bonding strength of the putty can be improved. Preferably, the redispersible latex powder is selected from one or more of vinyl acetate, ethylene, vinyl acetate, vinyl versatate, acrylate, homopolymer of styrene and copolymer of styrene.
The coarse whiting has low price and high whiteness, and the coarse whiting can reduce the cost, improve the covering power, improve the flowability of the coating and improve the construction performance by adding the coarse whiting.
The retarder can prolong the setting time of the gypsum and improve the workability; preferably, the retarder is selected from one or more of organic acid, soluble salt thereof and protamine.
The water-retaining agent ensures that the gypsum putty is fully hydrated, and the interface bonding strength is improved; preferably, the water retaining agent is selected from one or more of hydroxypropyl methyl cellulose ether and hydroxyethyl cellulose ether.
The water reducing agent enables the gypsum powder to be uniformly dispersed, and improves the fluidity of the putty; preferably, the water reducing agent is selected from one or more of naphthalene series and melamine series.
Preferably, the preparation raw materials of the component A comprise the following components in parts by weight:
40-60 parts of gypsum;
4-8 parts of aluminum oxide;
4-8 parts of mica powder;
1-5 parts of redispersible latex powder;
20-54 parts of coarse whiting;
0.05 to 0.2 portion of retarder;
0.2 to 0.8 portion of water-retaining agent;
0.1 to 0.6 portion of water reducing agent.
If the addition amount of the redispersible latex powder is less than 1 part, the bonding strength and the water resistance of the putty are influenced; if the addition amount of the redispersible latex powder is more than 5 parts, the performance is not obviously improved, and the cost is also increased.
If the adding amount of the heavy calcium is more than 54 parts, the heat insulation performance of the putty is influenced.
If the addition amount of the retarder is less than 0.05 part, the retarding effect cannot be achieved; if the addition amount of the retarder is more than 0.2 part, the bonding strength of the putty is influenced.
If the addition amount of the water-retaining agent is less than 0.2 part, the water-retaining effect cannot be achieved; if the amount of the water-retaining agent is more than 0.8 part, the viscosity increases, which affects workability and adhesive strength.
If the addition amount of the water reducing agent is less than 0.1 part, the effect of improving the fluidity cannot be achieved; if the addition amount of the water reducing agent is more than 0.6, the fluidity is not obviously improved, and the cost is also increased.
It can be understood that the heat-insulating dry powder putty can be used for spraying, scraping if the spraying is obstructed, can be used as interior wall putty, and can also be used as exterior wall putty.
In the heat-insulating dry powder putty, the titanium dioxide-coated hollow ceramic microspheres are easy to crack and are packaged separately as a component B. The raw materials of the component A are mixed and then packaged separately.
A use method of thermal insulation dry powder putty comprises the following steps:
mixing the component A and water, stirring at the speed of 600-800 rpm, and standing to obtain a mixture;
mixing the mixture and the component B, and stirring at the speed of 100rpm-200 rpm;
the component A is prepared from the following raw materials in parts by weight:
40-60 parts of gypsum;
4-8 parts of aluminum oxide;
the component B is prepared from the following raw materials in parts by weight:
5-15 parts of titanium dioxide coated hollow ceramic microspheres.
The component A and water can be stirred and mixed at a high speed, and after the component B is added, the component A needs to be stirred at a low speed, so that the hollow ceramic microspheres coated by titanium dioxide are prevented from cracking.
The following examples and comparative examples are further described below, and the starting materials used in the following examples can be commercially available, unless otherwise specified, and the equipment used therein can be commercially available, unless otherwise specified. Some of the raw material information used in the following examples and comparative examples is as follows:
the redispersible latex powder is vinyl acetate-ethylene latex powder with the model of 5044N, which is purchased from Wake chemical (China) Co.Ltd; the mesh number of the titanium dioxide coated hollow ceramic microspheres is 1250 meshes; the mesh number of the aluminum oxide powder is 325 meshes; the mesh number of the mica powder is 325 meshes; the mesh number of the manganese dioxide powder is 325 meshes; the retarder is a modified amino acid retarder with the model of Retardan-200P and is purchased from western California (China) Co; the water reducing agent is a melamine type F10 available from BASF (China, Inc.); the water retention agent is hydroxypropyl methyl cellulose ether and the viscosity at 20 ℃ is 50000mPa ∙ s.
The preparation method of the titanium dioxide coated hollow ceramic microspheres comprises the following steps:
weighing 5g of ceramic microspheres, putting 50mL of distilled water, dripping 10 drops of alanine glutamate, stirring and dispersing in a 500mL four-neck flask, adjusting the pH of the system to 2.0 by hydrochloric acid solution, adding a proper amount of urea, heating to 75 ℃, adding 10% of stannic chloride solution, precipitating tin salt by using OH-generated by hydrolysis of the urea and uniformly depositing the tin salt on the surfaces of the ceramic microspheres, adding TiCl4Adding a proper amount of urea into the solution, reacting at 70 ℃ for 1h, continuously heating to 80 ℃, reacting for 2h, and then aging at 70 ℃ for 1 h. Filtering the micro-beads, roasting at 300 ℃ to remove crystal water, and then roasting at 900 ℃ for 30min to obtain the rutile-phase titanium dioxide coated ceramic micro-beads.
Example 1
The embodiment provides heat-preservation dry powder putty and a preparation method and a using method thereof, and the heat-preservation dry powder putty comprises the following steps:
weighing 50% of desulfurized gypsum, 3% of redispersible latex powder, 10% of titanium dioxide-coated hollow ceramic microspheres, 4% of alumina powder, 6% of mica powder, 26.1% of heavy calcium, 0.1% of retarder, 0.5% of water-retaining agent and 0.3% of water-reducing agent in percentage by weight.
The preparation method comprises the following steps: pouring the desulfurized gypsum, the redispersible latex powder, the aluminum oxide powder, the mica powder, the coarse whiting, the retarder, the water-retaining agent and the water-reducing agent into a mixing device, uniformly mixing, and packaging to obtain the component A. And (3) independently packaging the titanium dioxide coated hollow ceramic microspheres to obtain a component B.
The using method comprises the following steps: weighing water, pouring the component A into the water, stirring the mixture at a high speed of 800rpm for 4 minutes, standing the mixture for 5 minutes, then adding the component B into the mixture, and stirring the mixture at a low speed of 200rpm for 2 minutes to construct the concrete.
Example 2
The embodiment provides thermal insulation dry powder putty and a preparation method and a using method thereof, which are basically the same as the embodiment 1, and are different in the use amount of titanium dioxide coated hollow ceramic microspheres and heavy calcium carbonate, and the steps are as follows:
weighing 50% of desulfurized gypsum, 3% of redispersible latex powder, 5% of titanium dioxide-coated hollow ceramic microspheres, 4% of alumina powder, 6% of mica powder, 31.1% of heavy calcium, 0.1% of retarder, 0.5% of water-retaining agent and 0.3% of water-reducing agent in percentage by weight.
The preparation method comprises the following steps: pouring the desulfurized gypsum, the redispersible latex powder, the aluminum oxide powder, the mica powder, the coarse whiting, the retarder, the water-retaining agent and the water-reducing agent into a mixing device, uniformly mixing, and packaging to obtain the component A. And (3) independently packaging the titanium dioxide coated hollow ceramic microspheres to obtain a component B.
The using method comprises the following steps: weighing water, pouring the component A into the water, stirring the mixture at a high speed of 800rpm for 4 minutes, standing the mixture for 5 minutes, then adding the component B into the mixture, and stirring the mixture at a low speed of 200rpm for 2 minutes to construct the concrete.
Example 3
The embodiment provides thermal insulation dry powder putty and a preparation method and a using method thereof, which are basically the same as the embodiment 1, and are different in the use amount of titanium dioxide coated hollow ceramic microspheres and heavy calcium carbonate, and the steps are as follows:
weighing 50% of desulfurized gypsum, 3% of redispersible latex powder, 15% of titanium dioxide coated hollow ceramic microspheres, 4% of alumina powder, 6% of mica powder, 21.1% of heavy calcium, 0.1% of retarder, 0.5% of water-retaining agent and 0.3% of water-reducing agent in percentage by weight.
The preparation method comprises the following steps: pouring the desulfurized gypsum, the redispersible latex powder, the aluminum oxide powder, the mica powder, the coarse whiting, the retarder, the water-retaining agent and the water-reducing agent into a mixing device, uniformly mixing, and packaging to obtain the component A. And (3) independently packaging the titanium dioxide coated hollow ceramic microspheres to obtain a component B.
The using method comprises the following steps: weighing water, pouring the component A into the water, stirring the mixture at a high speed of 800rpm for 4 minutes, standing the mixture for 5 minutes, then adding the component B into the mixture, and stirring the mixture at a low speed of 200rpm for 2 minutes to construct the concrete.
Example 4
The embodiment provides heat-preservation dry powder putty and a preparation method and a using method thereof, which are basically the same as the embodiment 1, and are different in the use amount of aluminum oxide powder and heavy calcium carbonate, and the steps are as follows:
weighing 50% of desulfurized gypsum, 3% of redispersible latex powder, 10% of titanium dioxide-coated hollow ceramic microspheres, 6% of aluminum oxide powder, 6% of mica powder, 24.1% of heavy calcium, 0.1% of retarder, 0.5% of water-retaining agent and 0.3% of water-reducing agent in percentage by weight.
The preparation method comprises the following steps: pouring the desulfurized gypsum, the redispersible latex powder, the aluminum oxide powder, the mica powder, the coarse whiting, the retarder, the water-retaining agent and the water-reducing agent into a mixing device, uniformly mixing, and packaging to obtain the component A. And (3) independently packaging the titanium dioxide coated hollow ceramic microspheres to obtain a component B.
The using method comprises the following steps: weighing water, pouring the component A into the water, stirring the mixture at a high speed of 800rpm for 4 minutes, standing the mixture for 5 minutes, then adding the component B into the mixture, and stirring the mixture at a low speed of 200rpm for 2 minutes to construct the concrete.
Example 5
The embodiment provides heat-preservation dry powder putty and a preparation method and a using method thereof, which are basically the same as the embodiment 1, and are different in the use amount of aluminum oxide powder and heavy calcium carbonate, and the steps are as follows:
weighing 50% of desulfurized gypsum, 3% of redispersible latex powder, 10% of titanium dioxide-coated hollow ceramic microspheres, 8% of alumina powder, 6% of mica powder, 22.1% of heavy calcium, 0.1% of retarder, 0.5% of water-retaining agent and 0.3% of water-reducing agent in percentage by weight.
The preparation method comprises the following steps: pouring the desulfurized gypsum, the redispersible latex powder, the aluminum oxide powder, the mica powder, the coarse whiting, the retarder, the water-retaining agent and the water-reducing agent into a mixing device, uniformly mixing, and packaging to obtain the component A. And (3) independently packaging the titanium dioxide coated hollow ceramic microspheres to obtain a component B.
The using method comprises the following steps: weighing water, pouring the component A into the water, stirring the mixture at a high speed of 800rpm for 4 minutes, standing the mixture for 5 minutes, then adding the component B into the mixture, and stirring the mixture at a low speed of 200rpm for 2 minutes to construct the concrete.
Comparative example 1
The comparative example provides a heat-insulating dry powder putty and a preparation method and a use method thereof, which are basically the same as the embodiment 1, and are different in that titanium dioxide-coated hollow ceramic microspheres are not added, and the dosage of heavy calcium is correspondingly increased, and the steps are as follows:
weighing 50% of desulfurized gypsum, 3% of redispersible latex powder, 4% of aluminum oxide powder, 6% of mica powder, 36.1% of heavy calcium carbonate, 0.1% of retarder, 0.5% of water-retaining agent and 0.3% of water-reducing agent in percentage by weight.
The preparation method comprises the following steps: pouring the desulfurized gypsum, the redispersible latex powder, the aluminum oxide powder, the mica powder, the triple superphosphate, the retarder, the water-retaining agent and the water-reducing agent into mixing equipment, uniformly mixing, and packaging to obtain the heat-preservation dry powder putty.
The using method comprises the following steps: weighing water, pouring the heat preservation dry powder putty into the water, stirring the mixture at a high speed of 800rpm for 4 minutes, standing the mixture for 5 minutes, and stirring the mixture for 2 minutes to construct the heat preservation dry powder putty.
Comparative example 2
The comparative example provides a heat-insulating dry powder putty and a preparation method and a use method thereof, which are basically the same as the embodiment 1, and are different in the use amount of titanium dioxide coated hollow ceramic microspheres and heavy calcium carbonate, and the steps are as follows:
weighing 50% of desulfurized gypsum, 3% of redispersible latex powder, 30% of titanium dioxide-coated hollow ceramic microspheres, 4% of alumina powder, 6% of mica powder, 6.1% of heavy calcium, 0.1% of retarder, 0.5% of water-retaining agent and 0.3% of water-reducing agent in percentage by weight.
The preparation method comprises the following steps: pouring the desulfurized gypsum, the redispersible latex powder, the aluminum oxide powder, the mica powder, the coarse whiting, the retarder, the water-retaining agent and the water-reducing agent into a mixing device, uniformly mixing, and packaging to obtain the component A. And (3) independently packaging the titanium dioxide coated hollow ceramic microspheres to obtain a component B.
The using method comprises the following steps: weighing water, pouring the component A into the water, stirring the mixture at a high speed of 800rpm for 4 minutes, standing the mixture for 5 minutes, then adding the component B into the mixture, and stirring the mixture at a low speed of 200rpm for 2 minutes to construct the concrete.
Comparative example 3
The comparative example provides a heat-insulating dry powder putty and a preparation method and a using method thereof, which are basically the same as the example 1, and are only different in that desulfurized gypsum is replaced by white cement, no retarder is added, and the using amount of heavy calcium is adjusted, and the steps are as follows:
weighing 50% of white cement, 3% of redispersible latex powder, 10% of titanium dioxide coated hollow ceramic microspheres, 4% of aluminum oxide powder, 6% of mica powder, 26.2% of heavy calcium, 0.5% of water-retaining agent and 0.3% of water-reducing agent in percentage by weight.
The preparation method comprises the following steps: pouring the white cement, the redispersible latex powder, the aluminum oxide powder, the mica powder, the triple superphosphate, the water-retaining agent and the water-reducing agent into mixing equipment, mixing uniformly, and packaging to obtain the component A. And (3) independently packaging the titanium dioxide coated hollow ceramic microspheres to obtain a component B.
The using method comprises the following steps: weighing water, pouring the component A into the water, stirring the mixture at a high speed of 800rpm for 4 minutes, standing the mixture for 5 minutes, then adding the component B into the mixture, and stirring the mixture at a low speed of 200rpm for 2 minutes to construct the concrete.
Comparative example 4
The comparative example provides a heat-preservation dry powder putty and a preparation method and a use method thereof, which are basically the same as the example 1, and are different in that manganese dioxide powder is replaced by aluminum sesquioxide powder, and the steps are as follows:
weighing 50% of desulfurized gypsum, 3% of redispersible latex powder, 10% of titanium dioxide coated hollow ceramic microspheres, 4% of manganese dioxide powder, 6% of mica powder, 26.1% of heavy calcium, 0.1% of retarder, 0.5% of water-retaining agent and 0.3% of water-reducing agent in percentage by weight.
The preparation method comprises the following steps: pouring the desulfurized gypsum, the redispersible latex powder, the manganese dioxide powder, the mica powder, the heavy calcium carbonate, the retarder, the water-retaining agent and the water-reducing agent into a mixing device, uniformly mixing, and packaging to obtain the component A. And (3) independently packaging the titanium dioxide coated hollow ceramic microspheres to obtain a component B.
The using method comprises the following steps: weighing water, pouring the component A into the water, stirring the mixture at a high speed of 800rpm for 4 minutes, standing the mixture for 5 minutes, then adding the component B into the mixture, and stirring the mixture at a low speed of 200rpm for 2 minutes to construct the concrete.
Testing
The heat-insulating dry powder putty prepared in the above examples and comparative examples was tested, and the test methods and test results are shown in table 1.
TABLE 1
As can be seen from Table 1, the heat-insulating dry powder putties prepared in examples 1 to 5 have low thermal conductivity, and can play a role in heat insulation and heat preservation and reducing the energy consumption of buildings, and simultaneously can maintain higher bonding strength.
Compared with the hollow ceramic microspheres which are not coated with titanium dioxide, the heat preservation and insulation performance of the hollow ceramic microspheres in the embodiment 1 is more remarkable, and if the adding amount of the hollow ceramic microspheres coated with titanium dioxide is 15%, the bonding strength of the putty is affected. After the aluminum oxide is replaced by other materials with high reflectivity (such as manganese dioxide powder), the heat preservation effect is not better than that of the embodiment 1.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. The heat-preservation dry powder putty is characterized by comprising a component A and a component B;
the component A is prepared from the following raw materials in parts by weight:
40-60 parts of gypsum;
4-8 parts of aluminum oxide;
4-8 parts of mica powder;
1-5 parts of redispersible latex powder;
20-54 parts of coarse whiting;
0.05 to 0.2 portion of retarder;
0.2 to 0.8 portion of water-retaining agent;
0.1-0.6 part of water reducing agent;
the component B is prepared from the following raw materials in parts by weight:
10-15 parts of titanium dioxide coated hollow ceramic microspheres.
2. The insulating dry powder putty as claimed in claim 1, wherein the titanium dioxide-coated hollow ceramic microbeads are 1000-1500 mesh in mesh.
3. The insulating dry powder putty as set forth in claim 1 wherein the titanium dioxide is rutile titanium dioxide.
4. The insulating dry powder putty as claimed in claim 1, wherein the mesh number of the alumina is 325-400 mesh.
5. The insulating dry powder putty as set forth in claim 1 wherein the gypsum is desulfurized gypsum.
6. The insulating dry powder putty as set forth in claim 1 wherein the mica powder has a mesh size selected from the range of 325 mesh to 400 mesh.
7. The heat-insulating dry powder putty as set forth in claim 1, characterized in that the component A is prepared from the following raw materials in parts by weight:
50 parts of desulfurized gypsum;
4 parts of aluminum oxide;
6 parts of mica powder;
3 parts of redispersible latex powder;
21.1 parts of heavy calcium carbonate;
0.1 part of retarder;
0.5 part of water-retaining agent;
0.3 part of a water reducing agent;
the component B is prepared from the following raw materials in parts by weight:
15 parts of titanium dioxide-coated hollow ceramic microspheres.
8. The heat-insulating dry powder putty as set forth in claim 1, characterized in that the component A is prepared from the following raw materials in parts by weight:
50 parts of desulfurized gypsum;
6 parts of aluminum oxide;
6 parts of mica powder;
3 parts of redispersible latex powder;
24.1 parts of heavy calcium carbonate;
0.1 part of retarder;
0.5 part of water-retaining agent;
0.3 part of a water reducing agent;
the component B is prepared from the following raw materials in parts by weight:
10 parts of titanium dioxide-coated hollow ceramic microspheres.
9. The heat-insulating dry powder putty as set forth in claim 1, characterized in that the component A is prepared from the following raw materials in parts by weight:
50 parts of desulfurized gypsum;
8 parts of aluminum oxide;
6 parts of mica powder;
3 parts of redispersible latex powder;
22.1 parts of heavy calcium carbonate;
0.1 part of retarder;
0.5 part of water-retaining agent;
0.3 part of a water reducing agent;
the component B is prepared from the following raw materials in parts by weight:
10 parts of titanium dioxide-coated hollow ceramic microspheres.
10. The use method of the heat-preservation dry powder putty is characterized by comprising the following steps:
mixing the component A and water, stirring at the speed of 600-800 rpm, and standing to obtain a mixture;
mixing the mixture and the component B, and stirring at the speed of 100rpm-200 rpm;
the component A is prepared from the following raw materials in parts by weight:
40-60 parts of gypsum;
4-8 parts of aluminum oxide;
4-8 parts of mica powder;
1-5 parts of redispersible latex powder;
20-54 parts of coarse whiting;
0.05 to 0.2 portion of retarder;
0.2 to 0.8 portion of water-retaining agent;
0.1-0.6 part of water reducing agent;
the component B is prepared from the following raw materials in parts by weight:
10-15 parts of titanium dioxide coated hollow ceramic microspheres.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011388444.9A CN112175438B (en) | 2020-12-02 | 2020-12-02 | Heat-insulating dry powder putty and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011388444.9A CN112175438B (en) | 2020-12-02 | 2020-12-02 | Heat-insulating dry powder putty and using method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112175438A CN112175438A (en) | 2021-01-05 |
| CN112175438B true CN112175438B (en) | 2021-03-23 |
Family
ID=73918343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011388444.9A Active CN112175438B (en) | 2020-12-02 | 2020-12-02 | Heat-insulating dry powder putty and using method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112175438B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115594475B (en) * | 2022-09-28 | 2023-06-30 | 杭州蓝田涂料有限公司 | Thermal insulation gypsum-based self-leveling mortar and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101575467A (en) * | 2008-05-07 | 2009-11-11 | 赵毅 | Environmental-friendly energy-saving insulating decoration putty powder |
| CN101638530A (en) * | 2008-07-30 | 2010-02-03 | 北新集团建材股份有限公司 | Desulfurization gypsum wall chasing putty capable of purifying air |
| CN102898110A (en) * | 2012-09-17 | 2013-01-30 | 江苏塞尚低碳科技有限公司 | Thick-layer putty for heat insulation of wall |
| CN104250463A (en) * | 2013-06-28 | 2014-12-31 | 上海墙特节能材料有限公司 | Ultra-strong water-resistant mildew-resistant inorganic dry powder putty |
| CN105219146A (en) * | 2015-10-26 | 2016-01-06 | 福建建工建材科技开发有限公司 | A kind of aqueous colorful imitates stone coating system |
-
2020
- 2020-12-02 CN CN202011388444.9A patent/CN112175438B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101575467A (en) * | 2008-05-07 | 2009-11-11 | 赵毅 | Environmental-friendly energy-saving insulating decoration putty powder |
| CN101638530A (en) * | 2008-07-30 | 2010-02-03 | 北新集团建材股份有限公司 | Desulfurization gypsum wall chasing putty capable of purifying air |
| CN102898110A (en) * | 2012-09-17 | 2013-01-30 | 江苏塞尚低碳科技有限公司 | Thick-layer putty for heat insulation of wall |
| CN104250463A (en) * | 2013-06-28 | 2014-12-31 | 上海墙特节能材料有限公司 | Ultra-strong water-resistant mildew-resistant inorganic dry powder putty |
| CN105219146A (en) * | 2015-10-26 | 2016-01-06 | 福建建工建材科技开发有限公司 | A kind of aqueous colorful imitates stone coating system |
Non-Patent Citations (2)
| Title |
|---|
| 粉体种类对高导热换位填充腻子性能的影响;张晓伟 等;《绝缘材料》;20091220;第42卷(第6期);第64-66页 * |
| 陶瓷微珠表面包覆金红石相二氧化钛薄膜的工艺研究;葛圣松 等;《山东科技大学学报(自然科学版)》;20100430;第29卷(第2期);第73-76、85页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112175438A (en) | 2021-01-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106700789A (en) | Waterborne energy-saving building coating and preparation method thereof | |
| CN101648794A (en) | Dry-type heat-insulating waterproof coating | |
| CN102702904A (en) | Waterproof thermal insulation coating composition and preparation method thereof | |
| CN101768400B (en) | Thermal insulation coating and preparation method thereof | |
| CN101319121A (en) | Multifunctional high-efficiency thermal insulation insulating mold paint | |
| CN101709193A (en) | Water-borne acrylic type water-proof heat-insulating paint | |
| CN105331220A (en) | Compound-type metal roof thermal-insulation waterproof coating and preparing method thereof | |
| CN102826810B (en) | Reflective heat-insulation powder coating and preparation method thereof | |
| CN110746799A (en) | Heat radiation type heat insulation coating and preparation method thereof | |
| CN105802415A (en) | Reflective heat-insulating coating | |
| CN101824258A (en) | Waterborne reflective heat-insulating building coating | |
| CN102925019A (en) | Exterior wall coating and preparation method thereof | |
| CN112143312A (en) | Texture stone-like heat-insulation reflective composite coating for building and preparation method thereof | |
| CN104910726A (en) | Flame-retardant reflective heat-insulating paint and preparation technique thereof | |
| CN112175438B (en) | Heat-insulating dry powder putty and using method thereof | |
| CN111607276A (en) | Double-component thin-coating type heat-insulating putty and preparation method thereof | |
| CN108977044A (en) | A kind of silo wall special coating and preparation method thereof | |
| US20220403186A1 (en) | Aqueous coating composition for forming thermal insulation coating for walls and reflective thermal insulation coating system for walls containing the thermal insulation coating | |
| CN101423727A (en) | Building energy-saving and heat insulating nano ATO paint for inside and outside wall surface | |
| CN109233516A (en) | A kind of water-borne heat-insulating energy saving silica vapour gel and conch meal composite exterior wall coating | |
| CN108396879A (en) | Composite rock wool plate exterior wall external heat preservation system and its construction technology | |
| CN105802409A (en) | Elastic, reflective and heat-insulation coating and preparation method thereof | |
| CN110643244A (en) | Reflective heat-insulating coating for buildings and preparation method thereof | |
| CN108751791A (en) | A kind of fireproof and heat-insulating material and preparation method thereof | |
| CN106400986A (en) | Reflecting thermal-insulating coating heat-insulation system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |