CN115058135A - Coating for vacuum heat-insulating plate and construction method thereof - Google Patents
Coating for vacuum heat-insulating plate and construction method thereof Download PDFInfo
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- CN115058135A CN115058135A CN202210926893.7A CN202210926893A CN115058135A CN 115058135 A CN115058135 A CN 115058135A CN 202210926893 A CN202210926893 A CN 202210926893A CN 115058135 A CN115058135 A CN 115058135A
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- 239000011248 coating agent Substances 0.000 title claims abstract description 44
- 238000000576 coating method Methods 0.000 title claims abstract description 44
- 238000010276 construction Methods 0.000 title claims abstract description 19
- 238000009413 insulation Methods 0.000 claims abstract description 74
- 239000000843 powder Substances 0.000 claims abstract description 74
- 239000011344 liquid material Substances 0.000 claims abstract description 67
- 239000000463 material Substances 0.000 claims abstract description 35
- 239000000839 emulsion Substances 0.000 claims abstract description 34
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000002994 raw material Substances 0.000 claims abstract description 19
- 239000004576 sand Substances 0.000 claims abstract description 16
- 239000004568 cement Substances 0.000 claims abstract description 15
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 14
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 13
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 11
- 230000008569 process Effects 0.000 claims abstract description 8
- 239000002904 solvent Substances 0.000 claims abstract description 8
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000011863 silicon-based powder Substances 0.000 claims abstract description 7
- 239000002002 slurry Substances 0.000 claims description 28
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 20
- 239000011253 protective coating Substances 0.000 claims description 14
- 238000005507 spraying Methods 0.000 claims description 14
- 239000002270 dispersing agent Substances 0.000 claims description 12
- 238000002156 mixing Methods 0.000 claims description 11
- 229920002472 Starch Polymers 0.000 claims description 10
- 239000008107 starch Substances 0.000 claims description 10
- 235000019698 starch Nutrition 0.000 claims description 10
- WRAGBEWQGHCDDU-UHFFFAOYSA-M C([O-])([O-])=O.[NH4+].[Zr+] Chemical group C([O-])([O-])=O.[NH4+].[Zr+] WRAGBEWQGHCDDU-UHFFFAOYSA-M 0.000 claims description 9
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 claims description 9
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 9
- 239000003638 chemical reducing agent Substances 0.000 claims description 9
- 239000007822 coupling agent Substances 0.000 claims description 9
- BNCADMBVWNPPIZ-UHFFFAOYSA-N 2-n,2-n,4-n,4-n,6-n,6-n-hexakis(methoxymethyl)-1,3,5-triazine-2,4,6-triamine Chemical compound COCN(COC)C1=NC(N(COC)COC)=NC(N(COC)COC)=N1 BNCADMBVWNPPIZ-UHFFFAOYSA-N 0.000 claims description 6
- 229920000642 polymer Polymers 0.000 claims description 6
- 238000002791 soaking Methods 0.000 claims description 6
- NOWKCMXCCJGMRR-UHFFFAOYSA-N Aziridine Chemical compound C1CN1 NOWKCMXCCJGMRR-UHFFFAOYSA-N 0.000 claims description 5
- HDERJYVLTPVNRI-UHFFFAOYSA-N ethene;ethenyl acetate Chemical group C=C.CC(=O)OC=C HDERJYVLTPVNRI-UHFFFAOYSA-N 0.000 claims description 5
- 229920001038 ethylene copolymer Polymers 0.000 claims description 5
- 239000002174 Styrene-butadiene Substances 0.000 claims description 4
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 4
- 239000002518 antifoaming agent Substances 0.000 claims description 4
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 claims description 4
- 239000011115 styrene butadiene Substances 0.000 claims description 4
- 229920003048 styrene butadiene rubber Polymers 0.000 claims description 4
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 claims description 3
- 230000000844 anti-bacterial effect Effects 0.000 claims description 3
- 239000003899 bactericide agent Substances 0.000 claims description 3
- 229920002678 cellulose Polymers 0.000 claims description 3
- 239000001913 cellulose Substances 0.000 claims description 3
- 230000003139 buffering effect Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000001066 destructive effect Effects 0.000 abstract description 2
- 238000003756 stirring Methods 0.000 description 36
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 25
- 238000012360 testing method Methods 0.000 description 19
- OCKPCBLVNKHBMX-UHFFFAOYSA-N butylbenzene Chemical compound CCCCC1=CC=CC=C1 OCKPCBLVNKHBMX-UHFFFAOYSA-N 0.000 description 12
- 239000011083 cement mortar Substances 0.000 description 12
- 229920002635 polyurethane Polymers 0.000 description 7
- 239000004814 polyurethane Substances 0.000 description 7
- 229920002153 Hydroxypropyl cellulose Polymers 0.000 description 6
- 239000002253 acid Substances 0.000 description 6
- 239000006255 coating slurry Substances 0.000 description 6
- 238000001035 drying Methods 0.000 description 6
- 239000001863 hydroxypropyl cellulose Substances 0.000 description 6
- 235000010977 hydroxypropyl cellulose Nutrition 0.000 description 6
- -1 polydimethylsiloxane Polymers 0.000 description 6
- 239000000377 silicon dioxide Substances 0.000 description 6
- LITQZINTSYBKIU-UHFFFAOYSA-F tetracopper;hexahydroxide;sulfate Chemical compound [OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[Cu+2].[Cu+2].[Cu+2].[Cu+2].[O-]S([O-])(=O)=O LITQZINTSYBKIU-UHFFFAOYSA-F 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 125000003636 chemical group Chemical group 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000004205 dimethyl polysiloxane Substances 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 125000004344 phenylpropyl group Chemical group 0.000 description 1
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009461 vacuum packaging Methods 0.000 description 1
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
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
- C09D1/06—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances cement
- C09D1/08—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances cement with organic additives
-
- 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
- C09D109/00—Coating compositions based on homopolymers or copolymers of conjugated diene hydrocarbons
- C09D109/06—Copolymers with styrene
- C09D109/08—Latex
-
- 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
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
Abstract
The invention discloses a coating for a vacuum heat-insulating plate and a construction method thereof, wherein the coating for the vacuum heat-insulating plate comprises a liquid material and a powder material, and the mass ratio of the liquid material to the powder material is 1: 2-1: 5; the liquid material comprises the following components in parts by mass: 20-70 parts of a high-molecular emulsion, 20-70 parts of a solvent, 1-5 parts of a cross-linking agent and 3.1-12.2 parts of a functional assistant; the powder comprises the following components in parts by mass: 30-60 parts of cement, 20-40 parts of fine sand, 20-40 parts of heavy calcium carbonate, 1-10 parts of silicon powder and 1.3-4 parts of bonding auxiliary agent; the raw materials react to form a reticular cross-linked skeleton structure, so that the early strength is good, the process can be quickly carried out, and the production efficiency is greatly improved; the vacuum insulation panel has the advantages of being airtight and sealed, preventing water molecules or gas from permeating, prolonging the service life of the vacuum insulation panel, having rigidity and flexibility, and being capable of playing a certain role in buffering and protecting external destructive forces such as impact, collision, impact resistance, knocking and the like.
Description
Technical Field
The invention relates to the technical field of vacuum insulation panel packaging, in particular to a coating for a vacuum insulation panel and a construction method thereof.
Background
With the improvement of scientific technology and the improvement of energy conservation and emission reduction requirements, the vacuum insulation panel is a material which utilizes vacuum technology to achieve excellent heat preservation and heat insulation, and is widely applied to the aspects of buildings, medical treatment, logistics, industrial heat preservation and the like, but the vacuum insulation panel mainly has the following problems in the application process: 1. since the high-efficiency heat-insulating performance of the vacuum heat-insulating plate depends on the vacuum degree, the vacuum heat-insulating plate is easy to break during transportation or construction, so that the heat-insulating effect is poor or even lost. 2. The service life of the vacuum insulation panel is prolonged, and the service life of the product is shortened due to the possibility of vacuum damage caused by single vacuum packaging. 3. The vacuum insulation panel is easy to leak gas and lose efficacy under the actions of impact, collision, impact, knocking, penetration of sharp objects, tearing and the like. 4. The wall surface on the site is uneven, and hollowing phenomenon (with bonding process) may occur in the construction process, which may cause the fastness of the vacuum insulation panel on the wall to be insufficient.
Disclosure of Invention
The invention aims to provide a coating for a vacuum insulation panel, which comprises the vacuum insulation panel to solve the problems of the existing vacuum insulation panel, can obviously increase the strength of the vacuum insulation panel and reduce the expansion rate and the heat conductivity coefficient, and prolongs the service life of the vacuum insulation panel.
The invention provides a coating for a vacuum insulation panel, which comprises a liquid material and a powder material, wherein the mass ratio of the liquid material to the powder material is 1: 2-1: 5;
the liquid material comprises the following components in parts by mass: 20-70 parts of a high-molecular emulsion, 20-70 parts of a solvent, 1-5 parts of a cross-linking agent and 3.1-12.2 parts of a functional assistant;
the powder comprises the following components in parts by mass: 30-60 parts of cement, 20-40 parts of fine sand, 20-40 parts of heavy calcium carbonate, 1-10 parts of silicon powder and 1.3-4 parts of bonding auxiliary agent.
The invention has the beneficial effects that: in the process of mixing the liquid material and the powder material, the liquid material and the powder material are subjected to hydroxyl combination reaction in an aqueous solution alkaline state to form a net-shaped cross-linked skeleton structure, the hardness is increased within 2-4 h to form a coating (high early strength) and the vacuum insulation panel can be moved, and the formed coating has good hardness, heat resistance and sealing performance, so that water molecules or gas are further prevented from permeating.
As a possible preferred mode, the mass ratio of the liquid material to the powder material is 1: 3.5.
As a possible implementation mode, the liquid material comprises the following components in parts by mass: 40-50 parts of high-molecular emulsion, 50-70 parts of solvent, 1-5 parts of cross-linking agent and 3.1-12.2 parts of functional auxiliary agent;
the powder comprises the following components in parts by mass: 45-60 parts of cement, 30-40 parts of fine sand, 20-30 parts of heavy calcium carbonate, 1-10 parts of silicon powder and 1.3-4 parts of bonding auxiliary agent.
As a possible embodiment, the polymer emulsion includes at least one of a pure acrylic emulsion, a styrene-butadiene emulsion, a vinyl acetate-ethylene copolymer emulsion, and a natural latex.
As a possible embodiment, the functional auxiliary agent comprises 1-5 parts of a dispersing agent, 0.1-0.2 part of a defoaming agent, 1-2 parts of tetraethyl orthosilicate and 1-5 parts of a bactericide.
As a possible embodiment, the bonding auxiliary agent comprises 0.1-0.3 part of water reducing agent, 0.1-0.5 part of cellulose, 0.1-0.2 part of starch ether and 1-3 parts of titanate coupling agent.
As a possible embodiment, the cross-linking agent is ammonium zirconium carbonate, hexamethoxymethylmelamine and aziridine mixed according to the mass ratio of 1:1: 1.
In a second aspect, the invention also discloses a construction method of the coating for the vacuum insulation panel, which comprises the following steps:
uniformly mixing all the raw materials of the liquid material to obtain the liquid material;
uniformly mixing all the raw materials of the powder to obtain the powder;
uniformly mixing the liquid material and the powder material to obtain slurry;
and adhering the slurry to the vacuum insulation panel in a spraying or soaking mode to form a protective coating, and then maintaining the vacuum insulation panel at 20-30 ℃ for 2-4 hours at the humidity of 70-90%.
The invention has the beneficial effects that: the construction method disclosed by the invention is simple and the maintenance conditions are not harsh, so that the construction method is easy to implement, and therefore, the coating for the vacuum insulation panel disclosed by the invention is worth popularizing and using.
As a possible embodiment, the thickness of the protective coating is 1-3 mm.
As a possible preferable mode, the humidity of the curing process is 85-90%.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more apparent, the present invention is described in further detail below. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The inventor of the invention finds that the existing vacuum insulation panel is easy to damage and has short service life. The inventor of the invention adopts a coating to coat the outside of the vacuum heat-insulating plate, which is used for increasing the hardness of the vacuum heat-insulating plate, thereby increasing the influence of the vacuum heat-insulating plate on the external factors to prolong the service life of the vacuum heat-insulating plate.
The invention discloses a coating for a vacuum heat-insulating plate, which comprises a liquid material and a powder material,
the liquid material comprises the following components in parts by mass: 20-70 parts of a high-molecular emulsion, 20-70 parts of a solvent, 1-5 parts of a cross-linking agent and 3.1-12.2 parts of a functional assistant;
the powder comprises the following components in parts by mass: 30-60 parts of cement, 20-40 parts of fine sand, 20-40 parts of heavy calcium carbonate, 1-10 parts of silicon powder and 1.3-4 parts of bonding auxiliary agent.
As used herein, the term "liquid material" refers to a material that is liquid at room temperature and pressure.
As used herein, the "powder" refers to a material that is present as a powder at room temperature and pressure.
As used herein, the term "fine sand" refers to sand having a mesh size of 80 to 140 mesh.
In the invention, the solvent and the polymer emulsion in the liquid material can quickly form a film to improve the surface strength, develop certain strength in a short time, can be moved (has good early strength), can quickly enter a next procedure, and greatly improves the production efficiency; in addition, the high molecular emulsion, the cross-linking agent, the powder cement, the fine sand and the ground calcium carbonate are mixed and reacted to form a net-shaped cross-linked skeleton structure and have the effects of sealing and sealing, so that the infiltration of water molecules or gas is further prevented. Because the polymer emulsion has a flexible chain and a rigid chain segment, the coating has good flexibility and good cohesiveness and rigidity after the cement is condensed, so that the coating for the vacuum insulation panel has rigidity and flexibility after being filmed, and can play a certain role in buffering and protecting external destructive forces such as impact, collision, impact resistance, knocking and the like.
In the invention, the mass ratio of the liquid material to the powder material is generally 1: 2-1: 5, suitably 1:3.5, and the liquid material and the powder material have better hardness, sealing performance and buffering performance.
In the invention, the liquid material suitably comprises the following components in parts by mass: 40-50 parts of high-molecular emulsion, 50-70 parts of solvent, 1-5 parts of cross-linking agent and 3.1-12.2 parts of functional auxiliary agent; the powder comprises the following components in parts by mass: 45-60 parts of cement, 30-40 parts of fine sand, 20-30 parts of heavy calcium carbonate, 1-10 parts of silicon powder and 1.3-4 parts of bonding auxiliary agent.
In the present invention, the polymer emulsion includes, but is not limited to, at least one of a pure acrylic emulsion, a styrene-butadiene emulsion, a vinyl acetate-ethylene copolymer emulsion, and a natural latex, and suitably, a mixture of a styrene-butadiene emulsion and a vinyl acetate-ethylene copolymer emulsion is formed in a mass ratio of 1: 1.
In the present invention, the crosslinking agent includes, but is not limited to, at least one of ammonium zirconium carbonate, hexamethoxy methyl melamine, and aziridine, and is suitably formulated in a mass ratio of ammonium zirconium carbonate, hexamethoxy methyl melamine, and aziridine of 1:1: 1.
In the invention, the functional auxiliary agent comprises but is not limited to at least one of 1-5 parts of dispersing agent, 0.1-0.2 part of defoaming agent, 1-2 parts of tetraethyl orthosilicate and 1-5 parts of bactericide.
In the present invention, the dispersant includes, but is not limited to, a polyurethane aqueous dispersant.
In the invention, the bonding auxiliary agent comprises but is not limited to at least one of 0.1-0.3 part of water reducing agent, 0.1-0.5 part of cellulose, 0.1-0.2 part of starch ether and 1-3 parts of titanate coupling agent.
The invention also discloses a construction method of the coating for the vacuum insulation panel, which comprises the following steps:
s1, uniformly mixing all the raw materials of the liquid material to obtain the liquid material;
s2, uniformly mixing all the raw materials of the powder to obtain the powder;
s3, uniformly mixing the liquid material and the powder material to obtain slurry;
s4, adhering the slurry to the vacuum insulation panel in a spraying or soaking mode to form a protective coating, and then maintaining the vacuum insulation panel at 20-30 ℃ for 2-4 hours at the humidity of 70-90%.
In the present invention, the mixing in the above steps can be performed in conventional equipment, such as a mixer, a dry mixer, etc. The spray may be applied by a conventional paint sprayer. The dead angle can be avoided by adopting a spraying or soaking mode.
The invention has the beneficial effects that: the construction method disclosed by the invention is simple and easy to implement; the curing condition is mild, the curing time is short (the early strength is good), the continuous production is facilitated, and the production efficiency is improved.
In the present invention, the thickness of the protective coating is generally 1 to 3mm, suitably 2mm, more suitably 3 mm.
In the present invention, the humidity during the curing process is generally 85 to 90%, suitably 90%.
Examples
Example 1
The embodiment discloses a coating for a vacuum insulation panel, which comprises a liquid material and a powder material, wherein the mass ratio of the liquid material to the powder material is 1: 2.
The liquid material comprises the following components in parts by weight: 20 parts of butylbenzene emulsion, 20 parts of water, 1 part of ammonium zirconium carbonate, 1 part of polyurethane aqueous dispersant, 0.1 part of polydimethylsiloxane, 1 part of tetraethyl orthosilicate and 2 parts of basic copper sulfate.
The powder comprises the following components in parts by weight: 30 parts of conch PO42.5, 20 parts of fine sand (80-140 meshes), 20 parts of 325-mesh heavy calcium carbonate, 1 part of silica powder (2500 meshes), 0.1 part of polycarboxylic acid water reducing agent, 0.1 part of hydroxypropyl cellulose (4 ten thousand viscosity), 0.1 part of starch ether and 1 part of titanate coupling agent.
The embodiment also discloses a construction method of the coating for the vacuum insulation panel, which comprises the following steps:
s1, adding each raw material in the liquid material into a stirrer, and stirring for 30 minutes at a stirring speed of 1000 revolutions per minute to obtain a uniform liquid material;
s2, adding the raw materials in the powder into a dry mixer, and stirring for 20 minutes at a stirring speed of 1500 revolutions per minute to obtain uniform powder;
s3, stirring the uniform powder and liquid materials in a stirrer at a stirring speed of 2000 revolutions per minute until non-layered slurry is formed;
s4, uniformly spraying the slurry on the vacuum insulation panel through a cement slurry spraying machine, controlling the thickness of the sprayed coating to be 2mm, and curing the vacuum insulation panel (20mm) sprayed with the slurry for 3 hours under the conditions that the temperature is 23 ℃ and the humidity is 90%.
The coating slurry is poured into a cement mortar triple test mould with the thickness of 40 multiplied by 40160mm, then the cement mortar triple test mould is dried in a drying oven with the temperature of 40 ℃ for 3 hours, and then a universal tester is used for detecting, so that the compressive strength of the protective coating can reach 2.0 mpa.
Example 2
The embodiment discloses a coating for a vacuum insulation panel, which comprises a liquid material and a powder material, wherein the mass ratio of the liquid material to the powder material is 1: 2.
The liquid material comprises the following components in parts by weight: 50 parts of butylbenzene emulsion, 60 parts of water, 3 parts of ammonium zirconium carbonate, 5 parts of polyurethane aqueous dispersant, 0.15 part of dimethyl siloxane, 1.5 parts of tetraethyl orthosilicate and 3 parts of basic copper sulfate.
The powder material comprises the following components in parts by weight: 45 parts of conch PO42.5, 30 parts of fine sand (80-140 meshes), 33 parts of 325-mesh heavy calcium carbonate, 5 parts of silica powder (2500 meshes), 0.3 part of polycarboxylic acid water reducing agent, 0.4 part of hydroxypropyl cellulose (4 ten thousand viscosity), 0.15 part of starch ether and 2 parts of titanate coupling agent.
The embodiment also discloses a construction method of the coating for the vacuum insulation panel, which comprises the following steps:
s1, adding the raw materials in the liquid material into a stirrer, and stirring for 10 minutes at a stirring speed of 2000 revolutions per minute to obtain a uniform liquid material;
s2, adding the raw materials in the powder into a dry mixer, and stirring at a stirring speed of 1500 revolutions per minute for 22 minutes to obtain uniform powder;
s3, stirring the uniform powder and liquid materials in a stirrer at a stirring speed of 2000 revolutions per minute until non-layered slurry is formed;
s4, uniformly spraying the slurry on the vacuum insulation panel through a cement slurry spraying machine, controlling the thickness of the sprayed coating to be 1mm, and curing the vacuum insulation panel (20mm) sprayed with the slurry for 2 hours under the conditions that the temperature is 28 ℃ and the humidity is 70%.
The coating slurry is poured into a cement mortar triple test mould with the thickness of 40 multiplied by 40160mm, then the cement mortar triple test mould is dried in a drying oven with the temperature of 40 ℃ for 3 hours, and then a universal tester is used for detecting, so that the compressive strength of the protective coating can reach 2.5 mpa.
Example 3
The embodiment discloses a coating for a vacuum insulation panel, which comprises a liquid material and a powder material, wherein the mass ratio of the liquid material to the powder material is 1: 5.
The liquid material comprises the following components in parts by weight: 70 parts of butylbenzene emulsion, 70 parts of water, 5 parts of ammonium zirconium carbonate, 5 parts of polyurethane aqueous dispersant, 0.2 part of dimethyl siloxane, 2 parts of tetraethyl orthosilicate and 5 parts of basic copper sulfate.
The powder comprises the following components in parts by weight: 60 parts of conch PO42.5, 40 parts of fine sand (80-140 meshes), 40 parts of 325-mesh heavy calcium carbonate, 10 parts of silica powder (2500 meshes), 0.3 part of polycarboxylic acid water reducing agent, 0.5 part of hydroxypropyl cellulose (4 ten thousand viscosity), 0.2 part of starch ether and 3 parts of titanate coupling agent.
The embodiment also discloses a construction method of the coating for the vacuum insulation panel, which comprises the following steps:
s1, adding each raw material in the liquid material into a stirrer, and stirring for 30 minutes at a stirring speed of 1500 revolutions per minute to obtain a uniform liquid material;
s2, adding the raw materials in the powder into a dry mixer, and stirring for 30 minutes at a stirring speed of 2000 revolutions per minute to obtain uniform powder;
s3, stirring the uniform powder and liquid materials in a stirrer at a stirring speed of 2500 revolutions per minute until non-layered slurry is formed;
s4, uniformly spraying the slurry on the vacuum insulation panel through a cement slurry spraying machine, controlling the thickness of the sprayed coating to be 3mm, and curing the vacuum insulation panel (20mm) sprayed with the slurry for 4 hours under the conditions that the temperature is 30 ℃ and the humidity is 80%.
The coating slurry is poured into a cement mortar triple test mould with the thickness of 40 multiplied by 40160mm, then the cement mortar triple test mould is dried in a drying oven with the temperature of 40 ℃ for 3 hours, and then a universal tester is used for detecting the compressive strength of the protective coating, wherein the compressive strength of the protective coating can reach 3 mpa.
Comparative example
This comparative example uses a vacuum insulation panel without any protection.
Example 4
The embodiment discloses a coating for a vacuum insulation panel, which comprises a liquid material and a powder material, wherein the mass ratio of the liquid material to the powder material is 1: 5.
The liquid material comprises the following components in parts by weight: 50 parts of butylbenzene emulsion, 70 parts of water, 5 parts of ammonium zirconium carbonate, 5 parts of polyurethane aqueous dispersing agent, 0.2 part of dimethyl siloxane, 2 parts of tetraethyl orthosilicate and 5 parts of basic copper sulfate.
The powder comprises the following components in parts by weight: 40 parts of conch PO42.5, 20 parts of fine sand (80-140 meshes), 40 parts of 325-mesh heavy calcium carbonate, 10 parts of silica powder (2500 meshes), 0.3 part of polycarboxylic acid water reducing agent, 0.5 part of hydroxypropyl cellulose (4 ten thousand viscosity), 0.2 part of starch ether and 3 parts of titanate coupling agent.
The embodiment also discloses a construction method of the coating for the vacuum insulation panel, which comprises the following steps:
s1, adding each raw material in the liquid material into a stirrer, and stirring for 30 minutes at a stirring speed of 1500 revolutions per minute to obtain a uniform liquid material;
s2, adding the raw materials in the powder into a dry mixer, and stirring for 30 minutes at a stirring speed of 2000 revolutions per minute to obtain uniform powder;
s3, stirring the uniform powder and liquid materials in a stirrer at a stirring speed of 2500 revolutions per minute until non-layered slurry is formed;
s4, soaking the vacuum insulation board in the slurry, and maintaining the vacuum insulation board (20mm) for 4 hours at the temperature of 30 ℃ and the humidity of 80% after soaking.
The coating slurry is poured into a cement mortar triple test mould with the thickness of 40 multiplied by 40160mm, then the cement mortar triple test mould is dried in a drying oven with the temperature of 40 ℃ for 3 hours, and then a universal tester is used for detecting, so that the compressive strength of the protective coating can reach 2.0 mpa.
Example 5
The embodiment discloses a coating for a vacuum insulation panel, which comprises a liquid material and a powder material, wherein the mass ratio of the liquid material to the powder material is 1: 2.
The liquid material comprises the following components in parts by weight: 50 parts of butylbenzene emulsion, 60 parts of water, 0.75 part of ammonium zirconium carbonate, 0.75 part of hexamethoxy methyl melamine, 0.75 part of aziridine, 5 parts of polyurethane aqueous dispersant, 0.15 part of dimethyl siloxane, 1.5 parts of tetraethyl orthosilicate and 3 parts of basic copper sulfate.
The powder comprises the following components in parts by weight: 45 parts of conch PO42.5, 30 parts of fine sand (80-140 meshes), 33 parts of 325-mesh heavy calcium carbonate, 5 parts of silica powder (2500 meshes), 0.3 part of polycarboxylic acid water reducing agent, 0.4 part of hydroxypropyl cellulose (4 ten thousand viscosity), 0.15 part of starch ether and 2 parts of titanate coupling agent.
The embodiment also discloses a construction method of the paint for the vacuum insulation panel, which comprises the following steps:
s1, adding the raw materials in the liquid material into a stirrer, and stirring for 10 minutes at a stirring speed of 2000 revolutions per minute to obtain a uniform liquid material;
s2, adding the raw materials in the powder into a dry mixer, and stirring at a stirring speed of 1500 revolutions per minute for 22 minutes to obtain uniform powder;
s3, stirring the uniform powder and liquid materials in a stirrer at a stirring speed of 2000 revolutions per minute until non-layered slurry is formed;
s4, uniformly spraying the slurry on the vacuum insulation panel through a cement slurry spraying machine, controlling the thickness of the sprayed coating to be 1mm, and curing the vacuum insulation panel (20mm) sprayed with the slurry for 2 hours under the conditions that the temperature is 28 ℃ and the humidity is 70%.
The coating slurry is poured into a cement mortar triple test mould with the thickness of 40 multiplied by 40160mm, then the cement mortar triple test mould is dried in a drying oven with the temperature of 40 ℃ for 3 hours, and then a universal tester is used for detecting, so that the compressive strength of the protective coating can reach 2.1 mpa.
Example 6
The embodiment discloses a coating for a vacuum insulation panel, which comprises a liquid material and a powder material, wherein the mass ratio of the liquid material to the powder material is 1: 5.
The liquid material comprises the following components in parts by weight: 15 parts of butylbenzene emulsion, 15 parts of pure acrylic acid emulsion, 15 parts of phenylpropyl emulsion, 15 parts of vinyl acetate-ethylene copolymer emulsion, 70 parts of water, 5 parts of hexamethoxymethyl melamine, 5 parts of polyurethane aqueous dispersant, 0.2 part of dimethyl siloxane, 2 parts of tetraethyl orthosilicate and 5 parts of basic copper sulfate.
The powder comprises the following components in parts by weight: 60 parts of conch PO42.5, 40 parts of fine sand (80-140 meshes), 40 parts of 325-mesh heavy calcium carbonate, 10 parts of silica powder (2500 meshes), 0.3 part of polycarboxylic acid water reducing agent, 0.5 part of hydroxypropyl cellulose (4 ten thousand viscosity), 0.2 part of starch ether and 3 parts of titanate coupling agent.
The embodiment also discloses a construction method of the coating for the vacuum insulation panel, which comprises the following steps:
s1, adding each raw material in the liquid material into a stirrer, and stirring for 30 minutes at a stirring speed of 1500 revolutions per minute to obtain a uniform liquid material;
s2, adding the raw materials in the powder into a dry mixer, and stirring for 30 minutes at a stirring speed of 2000 revolutions per minute to obtain uniform powder;
s3, stirring the uniform powder and liquid materials in a stirrer at a stirring speed of 2500 revolutions per minute until non-layered slurry is formed;
s4, uniformly spraying the slurry on the vacuum insulation panel through a cement slurry spraying machine, controlling the thickness of the sprayed coating to be 3mm, and curing the vacuum insulation panel (20mm) sprayed with the slurry for 4 hours under the conditions that the temperature is 30 ℃ and the humidity is 80%.
The coating slurry is poured into a cement mortar triple test mould with the thickness of 40 multiplied by 40160mm, then the cement mortar triple test mould is dried in a drying oven with the temperature of 40 ℃ for 3 hours, and then a universal tester is used for detecting, so that the compressive strength of the protective coating can reach 3.0 mpa.
In examples 1 to 6, the polymer emulsion, the crosslinking agent and the dispersing agent were produced by Shanghai Pasteur, the antifoaming agent and the starch ether were produced by German Ming Ling chemical group, and the ordinary cement was produced by Hemifos PO 42.5.
The application of the coating material on a vacuum panel, the comparative test of the effect of the examples thereof with an unprotected vacuum insulation panel, was as follows:
1. the puncture strength test is carried out according to the method specified by 6.6.13 in GB/T1004-2008, the diameter of the steel needle is 1.00mm, the diameter of the spherical top end of the steel needle is 0.5mm, the experimental loading speed is 50mm/min, the vacuum insulation panel (20mm) and the unprotected vacuum insulation panel (20mm) in the examples 1-6 are taken for carrying out, and the average value of 3 sampling points is taken for testing;
2. the expansion ratio of the vacuum insulation panels (20mm) to the unprotected vacuum insulation panels (20mm) in examples 1-6 was tested in the event of a gas leak at 6.11 in JG/T438.
3. The durability test was performed as required in 6.12 of JG/T438, and the thermal conductivity of the vacuum insulation panels (20mm) of examples 1-6 was compared with that of the unprotected vacuum insulation panel (20mm) after 30 cycles of cooling and heating, and was 0.0052 before the durability test.
TABLE 1
Through comparison of experimental data in table 1, the puncture strength is doubled and improved under the condition that the thickness of the coating is 1mm, and the puncture strength is doubled correspondingly along with the increase of the thickness of the coating. Also in the case of an increase in the thickness of the coating, the blow-by expansion rate is also reduced. The puncture strength is verified by nine micro projects of China department, and the application of the protected vacuum insulation panel in engineering projects shows that the air leakage rate is reduced from more than 20% to less than 5 per thousand, so that the vacuum insulation panel has a good application prospect.
It is seen from table 1 that the air leakage expansion rate is reduced by half, so that the vacuum insulation panel after protection can not bulge in the application of building facades even under the condition of little air leakage, and the influence on the attractiveness of the building facades is avoided.
After the durability test, the heat conductivity coefficients of all samples have some rising, but the unprotected samples rise obviously, because water molecules enter the vacuum insulation panel through the micropores in the durability test, the protective coating has good water tightness and air tightness after being crosslinked, and the passages and micropores through which the water molecules enter are prevented, so that the efficacy and the service life of the vacuum insulation panel are improved, and the experimental result also verifies the point.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. The coating for the vacuum insulation panel is characterized by comprising a liquid material and a powder material, wherein the mass ratio of the liquid material to the powder material is 1: 2-1: 5;
the liquid material comprises the following components in parts by mass: 20-70 parts of a high-molecular emulsion, 20-70 parts of a solvent, 1-5 parts of a cross-linking agent and 3.1-12.2 parts of a functional assistant;
the powder comprises the following components in parts by mass: 30-60 parts of cement, 20-40 parts of fine sand, 20-40 parts of ground limestone, 1-10 parts of silicon powder and 1.3-4 parts of bonding auxiliary agent.
2. The coating material for a vacuum insulation panel according to claim 1, wherein the mass ratio of the liquid material to the powder material is 1: 3.5.
3. The coating for the vacuum insulation panel according to claim 1 or 2, wherein the liquid material comprises the following components in parts by mass: 40-50 parts of high-molecular emulsion, 50-70 parts of solvent, 1-5 parts of cross-linking agent and 3.1-12.2 parts of functional auxiliary agent;
the powder comprises the following components in parts by mass: 45-60 parts of cement, 30-40 parts of fine sand, 20-30 parts of heavy calcium carbonate, 1-10 parts of silicon powder and 1.3-4 parts of bonding auxiliary agent.
4. The coating for vacuum insulation panels according to any one of claims 1 to 3, wherein the polymer emulsion comprises at least one of a pure acrylic emulsion, a styrene-butadiene emulsion, a vinyl acetate-ethylene copolymer emulsion and a natural latex.
5. The coating for a vacuum insulation panel according to any one of claims 1 to 3, wherein the functional assistant comprises 1 to 5 parts of a dispersant, 0.1 to 0.2 part of an antifoaming agent, 1 to 2 parts of tetraethyl orthosilicate, and 1 to 5 parts of a bactericide.
6. The coating for vacuum insulation panels according to any one of claims 1 to 3, wherein the bonding auxiliary comprises 0.1 to 0.3 parts of water reducing agent, 0.1 to 0.5 parts of cellulose, 0.1 to 0.2 parts of starch ether and 1 to 3 parts of titanate coupling agent.
7. The coating for vacuum insulation panels according to claim 1, wherein the crosslinking agent is ammonium zirconium carbonate, hexamethoxymethylmelamine and aziridine mixed in a mass ratio of 1:1: 1.
8. A method of applying a coating material for a vacuum insulation panel according to any one of claims 1 to 7, comprising the steps of:
uniformly mixing all the raw materials of the liquid material to obtain the liquid material;
uniformly mixing all the raw materials of the powder to obtain the powder;
uniformly mixing the liquid material and the powder material to obtain slurry;
and adhering the slurry to the vacuum insulation panel in a spraying or soaking mode to form a protective coating, and then maintaining the vacuum insulation panel at 20-30 ℃ for 2-4 hours at the humidity of 70-90%.
9. The construction method according to claim 8, wherein the thickness of the protective coating is 1 to 3 mm.
10. The construction method according to claim 8, wherein the humidity of the curing process is 85 to 90%.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103003328A (en) * | 2010-07-27 | 2013-03-27 | 氰特表面技术有限公司 | Radiation curable aqueous compositions |
| CN105086744A (en) * | 2014-10-30 | 2015-11-25 | 合肥蓝天家具制造有限责任公司 | Crack-resistant woodenware paint |
| CN113174153A (en) * | 2021-03-11 | 2021-07-27 | 苏州金螳螂建筑装饰股份有限公司 | Multifunctional waterproof reinforced coating and preparation method and construction method thereof |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103003328A (en) * | 2010-07-27 | 2013-03-27 | 氰特表面技术有限公司 | Radiation curable aqueous compositions |
| CN105086744A (en) * | 2014-10-30 | 2015-11-25 | 合肥蓝天家具制造有限责任公司 | Crack-resistant woodenware paint |
| CN113174153A (en) * | 2021-03-11 | 2021-07-27 | 苏州金螳螂建筑装饰股份有限公司 | Multifunctional waterproof reinforced coating and preparation method and construction method thereof |
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Application publication date: 20220916 |