CN114591027A - Composite hollow glass bead A-grade heat-insulating paste and preparation method thereof - Google Patents
Composite hollow glass bead A-grade heat-insulating paste and preparation method thereof Download PDFInfo
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Abstract
The invention relates to a composite hollow glass bead A-grade heat-insulating paste which is prepared from the following components in parts by mass: 45-59 parts of water, 0.1-0.3 part of dispersant, 0.1-0.3 part of reinforcing agent, 10-15 parts of emulsion, 0.1-0.5 part of fiber, 0.1-0.5 part of antiseptic and mildew inhibitor, 0.1-0.4 part of hydrophobic agent, 0.1-0.5 part of water retention agent, 0.2-3.2 parts of aerogel and 26.6-39.8 parts of composite hollow glass microsphere. The invention takes the hollow glass beads as a carrier, and introduces the flame retardant in a compounding way to prepare the composite hollow glass beads with heat preservation and flame retardance. The inorganic heat-insulating paste prepared by using the inorganic heat-insulating aggregate as the main heat-insulating aggregate benefits from the decomposition and heat absorption effects of the flame retardant, the emulsion content in the paste is moderately increased, and the fire-proof grade of the product can still reach A level.
Description
Technical Field
The invention relates to the field of building heat-insulating materials, in particular to a composite hollow glass microsphere class-A heat-insulating paste and a preparation method thereof.
Background
In order to meet the increasingly severe energy crisis and to fulfill the aim of carbon neutralization, the requirements of China on energy conservation and emission reduction and policy support of the energy-saving and environment-friendly industry are continuously improved. With the acceleration of the urbanization process in China, the proportion of building energy consumption to the total social energy consumption is gradually increased, and the problem of building energy consumption is obvious. In order to reduce the energy consumption of buildings, a large number of organic heat-insulating materials such as polystyrene boards and hard polyurethane boards which have the advantages of low heat conductivity coefficient, high strength, low density and the like are used for wall surface heat insulation. However, the organic insulation board can only achieve B-level fire prevention at present, so that the organic insulation board is forbidden in the field of building insulation, particularly high-rise building insulation. The inorganic heat-insulating paste material has the advantages of grade A fire resistance, heat insulation, safety, environmental protection and the like, and is one of the main trends of building heat insulation in the future.
The CN 110002842A patent discloses an A-grade non-combustible inorganic heat-insulating paste, the main raw materials of the inorganic heat-insulating paste are modified emulsion, hollow vitrified micro-beads, sepiolite powder, auxiliary agent, water and the like, the product A-grade non-combustible, the heat conductivity coefficient is 0.051-0.055W/(m.K), and the dry density is 240-280 kg/m3The tensile bonding strength is 0.07-0.12 MPa, the heat conductivity coefficient and the density of the thermal insulation paste are obviously higher than those of organic thermal insulation materials such as polystyrene boards, in order to achieve an equivalent thermal insulation effect, the thickness of the thermal insulation paste needs to be increased, the weight of a thermal insulation layer is improved, the tensile bonding strength of the paste is obviously lower than that of the organic thermal insulation materials, and the risk of material falling is obviously improved.
The CN 110194640A patent discloses an aerogel inorganic heat-insulating paste, which takes a hydraulic cementing material and a high-molecular polymer emulsion as binders, and effectively improves the strength of the product by compounding an organic cementing material and an inorganic cementing material. However, the inorganic heat-insulating paste is set to be ineffective due to the easy hydration and agglomeration of the hydraulic material, and the thermal conductivity of the paste is improved by the hydraulic material.
The existing inorganic heat-insulating paste mainly comprises heat-insulating aggregate, a cementing material and some auxiliaries, and in order to enable a product to achieve A-level fire prevention, the inorganic cementing material and some heavy fillers are usually added into the paste to increase the fire resistance, but the dry density and the heat conductivity coefficient of the paste are obviously improved, and the heat-insulating property, the safety and the stability of the paste are reduced. Therefore, the composite hollow glass bead class A heat-insulating paste and the preparation method thereof are provided for solving the problems.
Disclosure of Invention
The invention provides a composite hollow glass bead A-grade heat insulation paste and a preparation method thereof, wherein the self-made composite hollow glass beads with flame retardant and heat insulation effects are used as main heat insulation aggregates, inorganic cementing materials and heavy fillers are not required to be added, the paste can achieve A-grade fire prevention by virtue of the flame retardant effect of the composite hollow glass beads, and lower heat conductivity coefficient and dry density are kept. Meanwhile, the strength and the waterproof performance of the paste are effectively improved by properly increasing the content of the emulsion.
A composite hollow glass bead A-level heat-insulation paste is prepared from the following components in parts by mass:
the composite hollow glass bead is prepared by the following steps in sequence:
step 1: stirring the hollow glass beads and the solvent at a mass ratio of 1: 10-1: 15 at room temperature for 10-100 min at a stirring speed of 100-600 r/min;
and 2, step: then keeping the stirring speed of 100-600 r/min, adding a metal salt solution with the mass ratio of 1: 9-4: 9 to the hollow glass beads, and stirring for 10-30 min;
and step 3: then adding a precipitator which is 1: 13-4: 13 of the mass ratio of the precipitator to the hollow glass beads, and stirring for 1-6 hours;
and 4, step 4: filtering, washing and drying to obtain the composite hollow glass microspheres;
furthermore, the D50 of the hollow glass bead is 20-95 mu m, and the true density is 0.18-0.31 g/cm3The heat conductivity coefficient is 0.032-0.044W/(m.K); the solvent is one or more of water and C1-C4 alcohol; the metal salt is one or a mixture of more than two of sulfate, nitrate or hydrochloride of magnesium, aluminum or calcium in any proportion; the precipitant is one of ammonia water, sodium hydroxide or ammonium carbonate.
Further, the dispersing agent is one or any combination of more than two of fatty acids and fatty amides; the reinforcing agent is one or any combination of more than two of silane coupling agents and phthalate coupling agents; the antiseptic and mildew preventive is one or any combination of more than two of zinc pyrithione, carbazone and bronopol; the hydrophobic agent is one or the random combination of more than two of organic silicon resin and fatty acid metal soap; the water-retaining agent is one or any combination of more than two of methyl cellulose, ethyl cellulose and carboxymethyl cellulose.
The emulsion is one or the combination of more than two of acrylic emulsion, waterborne polyurethane, silicone-acrylic emulsion, waterborne epoxy, styrene-acrylate emulsion and polyvinyl acetate emulsion.
The dispersing agent, the reinforcing agent, the antiseptic and mildew inhibitor, the hydrophobic agent and the water-retaining agent are all common materials. Wherein the preferable dispersing agent is favorable for the dispersion of the hollow glass microspheres and the aerogel in the emulsion; the optimized reinforcing agent can effectively enhance the interaction between the heat-preservation aggregate and the emulsion and improve the strength of the dried paste; the preferable antiseptic and mildew-proof agent can effectively inhibit the growth of mildew and prolong the shelf life of the paste; the preferable hydrophobic agent can effectively reduce the water absorption of the dried paste; the preferable water-retaining agent can effectively reduce bleeding in the storage process of the paste and keep good construction performance. The preferred emulsions significantly increase the strength of the paste and maintain the low thermal conductivity and low density of the paste.
The fiber is one or the combination of any two of polypropylene fiber, glass fiber, polyethylene fiber and ceramic fiber.
The preferable fiber can effectively improve the toughness of the paste and prevent the cracking of the paste.
The aerogel is one or the combination of any two of silicon dioxide aerogel powder and titanium dioxide aerogel powder.
The preferred aerogels are effective in reducing the thermal conductivity of the paste.
The composite hollow glass bead is a self-made composite hollow glass bead.
The flame retardant grade of the paste can be effectively improved by introducing the flame retardant capable of separating the desorption heat into the preferable composite hollow glass beads, so that the paste can still reach grade A under relatively high emulsion content, the adverse effects of the addition of the inorganic cementing material and the heavy filler on the heat insulation performance and the density are avoided, the strength and the waterproof performance of the paste are effectively improved, and compared with the method of introducing the flame retardant by a simple mixing method, the adverse effects of the flame retardant on the heat insulation performance of the paste can be furthest reduced and the strength of the paste is improved by a compounding mode.
The invention takes micron-sized hollow glass microspheres as a carrier, deposits metal hydroxides such as magnesium hydroxide and aluminum hydroxide or metal carbonates such as magnesium carbonate and calcium carbonate on the surfaces of the glass microspheres by a precipitation method to synthesize composite hollow glass microspheres, then compounds the composite hollow glass microspheres and aerogel to be used as heat-insulating aggregate, and prepares the A-grade inorganic heat-insulating paste with low heat conductivity and low density by matching with organic emulsion, auxiliary agent and water.
The preparation method of the composite hollow glass bead A-level heat-insulating paste comprises the following steps:
adding water, a dispersing agent, a reinforcing agent, an emulsion, fibers, an antiseptic and mildew-proof agent, a hydrophobic agent and a water-retaining agent into a container, stirring at a stirring speed of 500-1200 r/min until the materials are uniformly dispersed, then adding the composite hollow glass beads at a stirring speed of 500-800 r/min, and continuously stirring until the materials are uniformly mixed to obtain the composite hollow glass bead A-grade heat-insulating paste.
Compared with the prior art, the invention has the following beneficial effects:
(1) the invention takes the hollow glass beads as a carrier, and introduces the flame retardant in a compounding way to prepare the composite hollow glass beads with heat preservation and flame retardance. The inorganic heat-insulating paste prepared by using the inorganic heat-insulating aggregate as the main heat-insulating aggregate benefits from the decomposition and heat absorption effects of the flame retardant, the emulsion content in the paste is moderately increased, and the fire-proof grade of the product can still reach A level. Therefore, the addition of inorganic gelled material and heavy filler can be avoided, thereby reducing the thermal conductivity and density of the paste. The improvement of the content of the emulsion can effectively improve the strength and the waterproof performance of the paste, the compressive strength can reach 0.31-0.37 MPa, the tensile bonding strength is 0.11-0.16 MPa, the water absorption rate is only 1.7-2.5 MPa, and the softening coefficient is kept at 0.85-0.89.
(2) The compounding of the flame retardant and the hollow glass beads can improve the strength of the glass beads, and compared with the direct addition of the flame retardant, the compounding mode can effectively reduce the adverse effect of the flame retardant on the heat insulation performance.
(3) The composite hollow glass bead and aerogel are used as thermal insulation aggregate, and are matched with emulsion, an auxiliary agent and water to obtain the composite hollow glass bead with a thermal conductivity of 0.040-0.048W/(m.K) and a dry density of 90-135 kg/m3Compared with the existing products, the inorganic heat-insulating paste has obviously reduced heat conductivity coefficient and density, heat-insulating property similar to that of polystyrene boards, and the product reaches A-level fire resistance, and can be widely applied to building heat insulation.
Detailed Description
The following describes specific embodiments of the present invention in detail with reference to the technical solutions.
Example 1
The invention provides a composite hollow glass bead A-level heat-insulating paste, which is mainly prepared by the following steps:
synthesizing the composite hollow glass beads:
mixing and stirring the hollow glass beads and the solvent in a mass ratio of 1:10 to prepare slurry, wherein the stirring speed is 600r/min, the temperature is room temperature, and the stirring is carried out for 10 min. And continuously keeping the stirring speed of 600r/min, and adding an aluminum nitrate solution with the mass ratio of 1:9 to the hollow glass microspheres. Maintaining the stirring speed at 600r/min, adding a sodium hydroxide solution in a mass ratio of 1:13 with the hollow glass beads, reacting at room temperature, and keeping the reaction for 1 hour. Filtering, washing the filter cake with water and industrial ethanol alternately, and drying to obtain the composite hollow glass beads.
(II) preparation of the composite hollow glass bead A-level heat-insulating paste:
adding 0.2 part of dispersing agent, 0.3 part of reinforcing agent, 14 parts of styrene-acrylate emulsion, 0.1 part of polypropylene fiber, 0.2 part of antiseptic and mildew inhibitor, 0.1 part of hydrophobic agent and 0.1 part of water-retaining agent into 45 parts of water, and stirring at 800r/min for 10min to prepare a mixed solution; uniformly mixing 39.8 parts of composite hollow glass microspheres and 0.2 part of aerogel to obtain mixed thermal insulation aggregate; slowly adding the mixed thermal insulation aggregate into the mixed solution, stirring for 45min at 400r/min to obtain the hollow glass bead A-grade thermal insulation paste with the product thermal conductivity of 0.048W/(m.K) and the dry density of 135kg/m3Meanwhile, the compressive strength can reach 0.35MPa, the tensile bonding strength is 0.15, the volume water absorption rate is only 2.5%, the softening coefficient is 0.85, and the waterproof performance of the product is excellent.
Example 2
The invention provides a composite hollow glass bead A-level heat-insulating paste, which is mainly prepared by the following steps:
synthesizing the composite hollow glass beads:
mixing and stirring the hollow glass beads and the solvent in a mass ratio of 1:12 to prepare slurry, wherein the stirring speed is 300r/min, the temperature is room temperature, and the stirring is carried out for 30 min. The stirring speed of 300r/min is continuously kept, and an aluminum nitrate solution with the mass ratio of 2:9 to the hollow glass beads is added. Maintaining the stirring speed at 300r/min, adding a sodium hydroxide solution in a mass ratio of 2:13 with the hollow glass beads, reacting at room temperature, and keeping the continuous reaction for 1.5 h. Filtering, washing the filter cake with water and industrial ethanol alternately, and drying to obtain the composite hollow glass beads.
(II) preparing a composite hollow glass bead A-level heat-insulating paste material:
adding 0.2 part of dispersing agent, 0.2 part of reinforcing agent, 15 parts of acrylic emulsion, 0.2 part of polypropylene fiber, 0.2 part of antiseptic and mildew inhibitor, 0.4 part of hydrophobic agent and 0.1 part of water-retaining agent into 47 parts of water, and stirring at 700r/min for 10min to prepare a mixed solution; uniformly mixing 36.1 parts of composite hollow glass microspheres and 0.6 part of aerogel to obtain a mixed thermal insulation aggregate; slowly adding the mixed heat-insulating aggregate into the mixed solution, stirring for 50min at 400r/min to obtain the hollow glass bead A-grade heat-insulating paste, wherein the product has the heat conductivity coefficient of 0.047W/(m.K) and the dry density of 130kg/m3Meanwhile, the compressive strength can reach 0.33MPa, the tensile bonding strength is 0.13, the volume water absorption rate is only 2.3%, the softening coefficient is 0.87, and the waterproof performance of the product is excellent.
Example 3
The invention provides a composite hollow glass bead A-level heat-insulating paste material, which is mainly prepared by the following steps:
synthesizing the composite hollow glass beads:
mixing and stirring hollow glass beads and a solvent in a mass ratio of 1:15 to prepare slurry, wherein the stirring speed is 500r/min, the temperature is room temperature, and stirring is carried out for 30 min. Continuously keeping the stirring speed of 500r/min, and adding a magnesium nitrate solution with the mass ratio of the magnesium nitrate solution to the hollow glass beads being 4: 9. Maintaining the stirring speed at 500r/min, adding a sodium hydroxide solution in a mass ratio of 4:13 with the hollow glass beads, reacting at room temperature, and keeping the reaction for 1 hour. Filtering, washing the filter cake with water and industrial ethanol alternately, and drying to obtain the composite hollow glass beads.
(II) preparation of the composite hollow glass bead A-level heat-insulating paste:
adding 0.1 part of dispersing agent, 0.2 part of reinforcing agent, 13 parts of styrene-acrylate emulsion, 0.1 part of glass fiber, 0.1 part of antiseptic and mildew inhibitor, 0.1 part of hydrophobic agent and 0.5 part of water-retaining agent into 52 parts of water, and stirring at 600r/min for 20min to prepare a mixed solution; uniformly mixing 32.6 parts of composite hollow glass microspheres and 1.3 parts of aerogel to obtain mixed thermal insulation aggregate; slowly adding the mixed heat-insulating aggregate into the mixed solution, stirring for 50min at the speed of 400r/min to obtain the hollow glass bead A-grade heat-insulating paste, wherein the product has the heat conductivity coefficient of 0.045W/(m.K) and the dry density of 118kg/m3Simultaneous compressive strengthCan reach 0.37MPa, the tensile bonding strength is 0.16, the volume water absorption rate is only 2.1 percent, the softening coefficient is 0.85, and the product has excellent waterproof performance.
Example 4
The invention provides a composite hollow glass bead A-level heat-insulating paste, which is mainly prepared by the following steps:
synthesizing the composite hollow glass beads:
mixing and stirring the hollow glass beads and the solvent in a mass ratio of 1:13 to prepare slurry, wherein the stirring speed is 100r/min, the temperature is room temperature, and the stirring is carried out for 100 min. Continuously keeping the stirring speed of 100r/min, and adding a magnesium nitrate solution with the mass ratio of 3:9 to the hollow glass beads. Maintaining the stirring speed at 100r/min, adding a sodium hydroxide solution in a mass ratio of 3:13 with the hollow glass beads, reacting at room temperature, and keeping the reaction for 1 hour. Filtering, washing the filter cake with water and industrial ethanol alternately, and drying to obtain the composite hollow glass beads.
(II) preparation of the composite hollow glass bead A-level heat-insulating paste:
adding 0.2 part of dispersing agent, 0.1 part of reinforcing agent, 13 parts of styrene-acrylate emulsion, 0.1 part of polypropylene fiber, 0.5 part of antiseptic and mildew inhibitor, 0.1 part of hydrophobic agent and 0.1 part of water-retaining agent into 54 parts of water, and stirring at 800r/min for 10min to prepare a mixed solution; uniformly mixing 30.4 parts of composite hollow glass microspheres and 1.5 parts of aerogel to obtain mixed thermal insulation aggregate; slowly adding the mixed heat-insulating aggregate into the mixed solution, stirring for 45min at the speed of 400r/min to obtain the hollow glass bead A-grade heat-insulating paste, wherein the product has the heat conductivity coefficient of 0.042W/(m.K) and the dry density of 105kg/m3Meanwhile, the compression strength can reach 0.34MPa, the tensile bonding strength is 0.12, the volume water absorption rate is only 2.0%, the softening coefficient is 0.88, and the waterproof performance of the product is excellent.
Example 5
The invention provides a composite hollow glass bead A-level heat-insulating paste material, which is mainly prepared by the following steps:
synthesizing composite hollow glass beads:
mixing and stirring the hollow glass beads and the solvent in a mass ratio of 1:14 to prepare slurry, wherein the stirring speed is 300r/min, the temperature is room temperature, and the stirring is carried out for 30 min. Continuously keeping the stirring speed of 300r/min, and adding a magnesium nitrate solution with the mass ratio of 1:9 to the hollow glass microspheres. Maintaining the stirring speed at 300r/min, adding a sodium hydroxide solution in a mass ratio of 1:13 with the hollow glass beads, reacting at room temperature, and keeping the reaction for 1 hour. Filtering, alternately washing a filter cake by using water and industrial ethanol, and drying to obtain the composite hollow glass microspheres.
(II) preparation of the composite hollow glass bead A-level heat-insulating paste:
adding 0.3 part of dispersing agent, 0.1 part of reinforcing agent, 10 parts of styrene-acrylate emulsion, 0.1 part of ceramic fiber, 0.1 part of antiseptic and mildew inhibitor, 0.1 part of hydrophobic agent and 0.1 part of water-retaining agent into 59 parts of water, and stirring at 700r/min for 10min to prepare a mixed solution; uniformly mixing 28.7 parts of composite hollow glass microspheres and 1.5 parts of aerogel to obtain a mixed thermal insulation aggregate; slowly adding the mixed heat-insulating aggregate into the mixed solution, stirring for 45min at 400r/min to obtain the hollow glass bead A-grade heat-insulating paste, wherein the product has the heat conductivity coefficient of 0.043W/(m.K) and the dry density of 110kg/m3Meanwhile, the compressive strength can reach 0.31MPa, the tensile bonding strength is 0.11, the volume water absorption rate is only 2.0 percent, the softening coefficient is 0.89, and the waterproof performance of the product is excellent.
Example 6
The invention provides a composite hollow glass bead A-level heat-insulating paste, which is mainly prepared by the following steps:
synthesizing the composite hollow glass beads:
mixing and stirring the hollow glass beads and the solvent in a mass ratio of 1:15 to prepare slurry, wherein the stirring speed is 600r/min, the temperature is room temperature, and the stirring is carried out for 30 min. The stirring speed of 600r/min is kept continuously, and a magnesium nitrate solution with the mass ratio of 2:9 to the hollow glass beads is added. Maintaining the stirring speed at 600r/min, adding a sodium hydroxide solution in a mass ratio of 2:13 with the hollow glass beads, reacting at room temperature, and keeping the reaction for 1 hour. Filtering, washing the filter cake with water and industrial ethanol alternately, and drying to obtain the composite hollow glass beads.
(II) preparation of the composite hollow glass bead A-level heat-insulating paste:
adding 0.1 part of dispersing agent, 0.1 part of reinforcing agent, 15 parts of styrene-acrylate emulsion, 0.5 part of ceramic fiber, 0.2 part of antiseptic and mildew inhibitor, 0.2 part of hydrophobic agent and 0.1 part of water-retaining agent into 54 parts of water, and stirring for 10min at 500r/min to prepare a mixed solution; uniformly mixing 26.6 parts of composite hollow glass microspheres and 3.2 parts of aerogel to obtain mixed thermal insulation aggregate; slowly adding the mixed heat-insulating aggregate into the mixed solution, stirring for 45min at the speed of 400r/min to obtain the hollow glass bead A-grade heat-insulating paste, wherein the product has the heat conductivity coefficient of 0.040W/(m.K) and the dry density of 90kg/m3Meanwhile, the compressive strength can reach 0.36MPa, the tensile bonding strength is 0.15, the volume water absorption rate is only 1.7, the softening coefficient is 0.85, and the waterproof performance of the product is excellent.
The class-A heat-insulating paste of the composite hollow glass beads and the preparation method thereof are not limited to the above embodiments, and any modification or replacement according to the principle of the invention is within the protection scope of the invention.
Claims (10)
1. The A-grade heat-insulating paste of the composite hollow glass beads is characterized in that: the feed is prepared from the following components in parts by mass:
the composite hollow glass bead is prepared by the following steps in sequence:
step 1: stirring the hollow glass beads and the solvent at a mass ratio of 1: 10-1: 15 at room temperature for 10-100 min at a stirring speed of 100-600 r/min;
and 2, step: then keeping the stirring speed of 100-600 r/min, adding a metal salt solution with the mass ratio of 1: 9-4: 9 to the hollow glass beads, and stirring for 10-30 min;
and step 3: then adding a precipitator which is 1: 13-4: 13 of the mass ratio of the precipitator to the hollow glass beads, and stirring for 1-6 hours;
and 4, step 4: filtering, washing and drying to obtain the composite hollow glass microspheres.
2. The composite hollow glass bead class A heat preservation paste according to claim 1, characterized in that: the D50 of the hollow glass bead is between 20 and 95 mu m, and the true density is between 0.18 and 0.31g/cm3The thermal conductivity coefficient is between 0.032 and 0.044W/(m.K);
the solvent is one or more of water and C1-C4 alcohol;
the metal salt is one or a mixture of more than two of sulfate, nitrate or hydrochloride of magnesium, aluminum or calcium in any proportion;
the precipitant is one of ammonia water, sodium hydroxide or ammonium carbonate.
3. The composite hollow glass bead class A heat preservation paste according to claim 1, characterized in that: the dispersing agent is one or any combination of more than two of fatty acids and fatty amides.
4. The composite hollow glass bead class A heat preservation paste according to claim 1, characterized in that: the reinforcing agent is one or any combination of more than two of silane coupling agents and phthalate coupling agents.
5. The composite hollow glass bead class A heat preservation paste according to claim 1, characterized in that: the antiseptic and mildew inhibitor is one or any combination of more than two of zinc pyrithione, carbazone and bronopol.
6. The composite hollow glass bead class A heat preservation paste according to claim 1, characterized in that: the hydrophobic agent is one or the random combination of more than two of organic silicon resin and fatty acid metal soap.
7. The composite hollow glass bead class A heat preservation paste according to claim 1, characterized in that: the water-retaining agent is one or any combination of more than two of methyl cellulose, ethyl cellulose and carboxymethyl cellulose.
8. The composite hollow glass bead class A heat-insulating paste according to claim 1, characterized in that: the emulsion is one or the combination of more than two of acrylic emulsion, waterborne polyurethane, silicone-acrylic emulsion, waterborne epoxy, styrene-acrylate emulsion and polyvinyl acetate emulsion.
9. The composite hollow glass bead class A heat preservation paste according to claim 1, characterized in that: the fiber is one or the combination of any two of polypropylene fiber, glass fiber, polyethylene fiber and ceramic fiber;
the aerogel is one or the combination of any two of silicon dioxide aerogel powder and titanium dioxide aerogel powder.
10. The preparation method of the composite hollow glass bead class A heat preservation paste according to any one of claims 1-9, characterized in that: the method comprises the following steps:
adding water, a dispersing agent, a reinforcing agent, an emulsion, fibers, an antiseptic mildew inhibitor, a hydrophobic agent and a water-retaining agent into a container, stirring at a stirring speed of 500-1200 r/min until the components are uniformly dispersed, then adding the composite hollow glass beads and aerogel at a stirring speed of 500-800 r/min, and continuously stirring until the components are uniformly mixed to obtain the composite hollow glass bead A-level heat-insulating paste.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116162372A (en) * | 2023-03-29 | 2023-05-26 | 平顶山学院 | Flame-retardant heat-insulating coating |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106009044A (en) * | 2016-06-29 | 2016-10-12 | 青岛科技大学 | Surface modifying method of hollow glass beads and flame-retardant application thereof |
| CN111978802A (en) * | 2020-08-19 | 2020-11-24 | 上海多邦涂料有限公司 | Heat-insulating coating and preparation method thereof |
| WO2021136283A1 (en) * | 2019-12-30 | 2021-07-08 | 中国科学院理化技术研究所 | Composite thermal insulation material formed by lap joint of microspheres and preparation method therefor |
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- 2022-04-21 CN CN202210422666.0A patent/CN114591027A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106009044A (en) * | 2016-06-29 | 2016-10-12 | 青岛科技大学 | Surface modifying method of hollow glass beads and flame-retardant application thereof |
| WO2021136283A1 (en) * | 2019-12-30 | 2021-07-08 | 中国科学院理化技术研究所 | Composite thermal insulation material formed by lap joint of microspheres and preparation method therefor |
| CN111978802A (en) * | 2020-08-19 | 2020-11-24 | 上海多邦涂料有限公司 | Heat-insulating coating and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116162372A (en) * | 2023-03-29 | 2023-05-26 | 平顶山学院 | Flame-retardant heat-insulating coating |
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