CN110204932B - Water-based silicate composite heat-insulating flame-retardant coating and preparation method thereof - Google Patents
Water-based silicate composite heat-insulating flame-retardant coating and preparation method thereof Download PDFInfo
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- CN110204932B CN110204932B CN201910414844.3A CN201910414844A CN110204932B CN 110204932 B CN110204932 B CN 110204932B CN 201910414844 A CN201910414844 A CN 201910414844A CN 110204932 B CN110204932 B CN 110204932B
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/14—Paints containing biocides, e.g. fungicides, insecticides or pesticides
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- 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
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
- C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
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Abstract
The invention relates to a water-based silicate composite heat-insulating flame-retardant coating and a preparation method thereof. The coating comprises the following components in parts by weight: 30-40 parts of inorganic nano silicate resin; 0.7-5 parts of silicate water-based thixotropic agent; 5-7 parts of polycarbodiimide crosslinking agent; 5-10 parts of nanoscale aerogel powder; 0.5-2 parts of organic modified bentonite; 37-60 parts of pigment and filler; 1-3 parts of a film-forming assistant; 10-20 parts of hollow ceramic beads; 0.2-0.5 part of a stabilizer; 0.5-1 part of an auxiliary agent; 15-20 parts of water. The coating is a water-based inorganic coating, does not contain organic solvent and residual monomers, and has the advantages of no pollution and no waste; in addition, the coating has excellent adhesive force, better alkali resistance, good weather resistance, heat insulation and flame retardant properties, antibacterial function and hardness, multiple functions, convenient construction and low cost.
Description
Technical Field
The invention belongs to the technical field of coatings, and particularly relates to a water-based silicate composite heat-insulating flame-retardant coating and a preparation method thereof.
Background
The rapid development of modern world economic leap and world industrialization leads to the rapid deterioration of the global environment, and serious pollution threatens the living space of human beings. "green" and "environmental protection" are new requirements for the paint industry after people pay high attention to environmental protection, and are also the development direction of paint.
In the prior art, because the building coating generates a large amount of byproducts, volatile solvents and residual monomers, not only environmental pollution but also a large amount of resources and energy are wasted, and secondly, the coating is coated on the surface of a wall body, after a period of time, the coating on the wall surface is hollowly, frothy and even peels off, which brings bad influence on the environment and the health of people, and the coating has the defects of single function, complex construction procedure and poor adhesive force.
Therefore, the development of the multifunctional coating with little pollution, full utilization of resources and good adhesive force has important research significance and application value.
Disclosure of Invention
The invention aims to overcome the defects and shortcomings of large pollution, resource waste, poor adhesion and single function of the building coating in the prior art, and provides the water-based silicate composite heat-insulating flame-retardant coating. The water-based silicate composite heat-insulating flame-retardant coating provided by the invention is a water-based inorganic coating, does not contain organic solvent and residual monomers, and has the advantages of no pollution and no waste; in addition, the coating has excellent adhesive force, better alkali resistance, good weather resistance, heat insulation and flame retardant properties, an antibacterial function, ultrahigh hardness, multiple functions, convenience in construction and low cost.
The invention also aims to provide a preparation method of the water-based silicate composite heat-insulating flame-retardant coating.
In order to achieve the purpose, the invention adopts the following technical scheme:
the water-based silicate composite heat-insulating flame-retardant coating comprises the following components in parts by weight:
30-40 parts of inorganic nano silicate resin;
0.7-5 parts of silicate water-based thixotropic agent;
5-7 parts of polycarbodiimide crosslinking agent;
5-10 parts of nanoscale aerogel powder;
0.5-2 parts of organic modified bentonite;
37-60 parts of pigment and filler;
1-3 parts of a film-forming assistant;
10-20 parts of hollow ceramic beads;
0.5-1 part of a stabilizer;
0.5-1 part of an auxiliary agent;
15-20 parts of water.
The water-based silicate composite heat-insulating flame-retardant coating provided by the invention takes inorganic nano silicate resin as a base material, and the silicate water-based thixotropic agent, the polycarbodiimide crosslinking agent, the nano aerogel powder and other components are matched, so that the coating has excellent adhesive force, better alkali resistance, good weather resistance, heat-insulating flame-retardant property, antibacterial function and super-strong hardness, multiple functions, convenience in construction and low cost.
The thixotropic agent can generally improve the construction performance and the water resistance of the coating; the cross-linking agent can improve the cross-linking density of the coating, improve the integrity of a paint film and enhance the anti-rusting capability; the nano aerogel powder has better heat absorption effect; the inventor of the invention unexpectedly finds that when the specific silicate aqueous thixotropic agent, the polycarbodiimide crosslinking agent and the nano aerogel powder are matched, the performances mentioned above can be improved, and the ultra-strong hardness and the good adhesive force with the matrix are also obtained: the superstrong hardness is more than 2H, and the adhesive force can reach 0 grade at most; this is mainly because silicate resins form more compact coating films catalyzed by these several components.
In addition, the pH value of the water-based silicate adhesive is alkaline, so that the final coating is alkaline and is more suitable for being applied to basic layers of cement, sand lime and the like which have the same alkalinity, and the silicate can generate chemical reaction with lime in the base materials to generate calcium silicate crystals which can be integrated with the basic layers, so that the adhesive force is further improved, and meanwhile, the water-based silicate adhesive is good in alkali resistance and weather resistance.
In addition, the water-based silicate composite heat-insulating flame-retardant coating is a water-based inorganic coating, does not contain organic solvent and residual monomers, has the advantages of no pollution and no waste, and is convenient to construct and low in cost.
Preferably, the water-based silicate composite heat-insulating flame-retardant coating comprises the following components in parts by mass:
30 parts of inorganic nano silicate resin;
0.8 part of silicate water-based thixotropic agent;
5 parts of polycarbodiimide crosslinking agent;
5 parts of nano aerogel powder;
1 part of organic modified bentonite;
37 parts of pigment and filler;
2 parts of a film-forming additive;
10 parts of hollow ceramic beads;
1 part of a stabilizer;
1 part of an auxiliary agent;
and 15 parts of water.
Preferably, the inorganic nano silicate resin is one or more of silica gel, inorganic nano potassium silicate resin or inorganic nano sodium silicate resin.
Preferably, the silicate aqueous thixotropic agent is one or more of LAPONITE S482, LAPONITE RD or LAPONITE RDs.
Preferably, the polycarbodiimide crosslinking agent is ZOLDINE XL-29 SE.
Preferably, the nano aerogel powder is SiO2Aerogel powder; the particle size of the nanoscale aerogel powder is 500-1000 nm.
Preferably, the organic modified bentonite is one or more of JY52, HY-708 or JY-610.
Preferably, the pigment and filler is one or more of kaolin, barium sulfate, quartz sand, corundum, rutile titanium dioxide, anatase titanium dioxide, marble powder or sericite powder.
Preferably, the film forming auxiliary agent is one or more of dodecyl alcohol ester or ethylene glycol monobutyl ether.
Preferably, the particle size of the hollow ceramic beads is 500-800 meshes.
Preferably, the stabilizer is one or more of HV80 or AT 2030.
Preferably, the auxiliary agent is one or more of a dispersing agent, a defoaming agent, a wetting agent or a preservative
More preferably, the dispersed SN 5040.
More preferably, the defoaming agent is one or more of NXZ, 154 or 345.
More preferably, the preservative is one or more of LXE or BIT 20.
The preparation method of the water-based silicate composite heat-insulating flame-retardant coating comprises the following steps: mixing inorganic nano silicate resin, silicate aqueous thixotropic agent, polycarbodiimide cross-linking agent, nano aerogel powder, organic modified bentonite, pigment and filler, film forming additive, hollow ceramic beads, stabilizer and additive, stirring and dispersing to obtain the product.
Preferably, the stirring speed is 1000-1200 r/min, and the stirring time is 15-20 min.
Compared with the prior art, the invention has the following beneficial effects:
the water-based silicate composite heat-insulating flame-retardant coating provided by the invention is a water-based inorganic coating, does not contain organic solvent and residual monomers, and has the advantages of no pollution and no waste; in addition, the coating has excellent adhesive force, better alkali resistance, good weather resistance, heat insulation and flame retardant properties, an antibacterial function and super-strong hardness, and has multiple functions, convenient construction and low cost.
Detailed Description
The present invention will be further described with reference to examples and comparative examples. These examples are merely representative descriptions of the present invention, but the present invention is not limited thereto. The test methods used in the following examples and comparative examples are, unless otherwise specified, all conventional methods, and the raw materials, reagents and the like used are, unless otherwise specified, all commercially available raw materials and reagents.
Examples 1 to 5
This example provides a water-based silicate composite thermal insulation flame retardant coating, whose formulation is shown in table 1 below. The water-based silicate composite heat-insulating flame-retardant coating is prepared by the following method: after the components are put into a dispersion kettle, dispersing for 15-20 min at the speed of 1000-1200 r/min to finally form a colored paste, and inspecting for qualified use.
TABLE 1 formulations (unit: g) of examples 1 to 5
The auxiliary agent comprises the following components: antifoam agent (NXZ): 1g, preservative (LXE): 9 g.
The color filler (370g) comprises the following components: barium sulfate: 50g, kaolin: 150g of rutile titanium dioxide, 100g of rutile titanium dioxide, 50g of natural marble powder and 20g of sericite powder.
The composition of the pigment and filler (600g) is as follows: barium sulfate: 80g, kaolin: 240g of rutile titanium dioxide, 160g of natural marble powder, and 40g of sericite powder.
Comparative example 1
This comparative example provides an aqueous coating material which was identical to that of example 1 except that HQ505 was used as the aqueous thixotropic agent.
Comparative example 2
This comparative example provides a water-borne coating with a crosslinker selected to be TH410, the remainder being identical to example 1.
Comparative example 3
This comparative example provides a water-based paint, the flame retardant material selected for which is expanded perlite, the remainder being identical to example 1.
Measurement of Performance
The performance of the coatings provided in the examples and comparative examples are compared, and are shown in Table 2 as the performance indexes of inorganic mineral coatings (GB10222-88 inorganic building coatings for exterior walls) and organic coatings (GB/T9755-2014 synthetic resin emulsion exterior wall coatings).
Wherein, the water seepage degree of the wall body with the standard waterproof performance per square meter is less than 0.5KG in every half hour.
The water vapor diffusion resistance value of each gap is less than 0.1mm, and the waterproof coefficient is less than 0.05 KG/Mxho0.5.
TABLE 2 comparison of the Properties of the inorganic mineral coating (example 1) with the organic coating (H200 latex paint for exterior walls)
As can be seen from table 2, the coating provided by the present invention has superior performance in all respects compared to organic coatings.
(II) the paint provided by the examples 1-5 and the comparative examples 1-3 is subjected to performance measurement (GB12441-2005 finish type fireproof paint) GB/T6739-.
Table 3 results of coating property measurements provided in examples 1 to 5 and comparative examples 1 to 3
As can be seen from table 3, the coating provided by each embodiment of the present invention has excellent adhesion, better alkali resistance, good weather resistance, heat insulation and flame retardation, antibacterial property and hardness, multiple functions, convenient construction and low cost. In comparative examples 1 to 3, the adhesive force and hardness are inferior to those of the examples because the selected water-based thixotropic agent, the crosslinking agent and the flame retardant material lack good matching effect.
Finally, it should be noted that the above embodiments are only representative examples of the present invention. Obviously, the technical solution of the present invention is not limited to the above-described embodiments, and many variations are possible. All modifications which can be derived or suggested by a person skilled in the art from the present disclosure are to be considered within the scope of the claims of the present invention.
Claims (10)
1. The water-based silicate composite heat-insulating flame-retardant coating is characterized by comprising the following components in parts by mass:
30-40 parts of inorganic nano silicate resin;
0.7-5 parts of silicate water-based thixotropic agent;
5-7 parts of polycarbodiimide crosslinking agent;
5-10 parts of nanoscale aerogel powder;
0.5-2 parts of organic modified bentonite;
37-60 parts of pigment and filler;
1-3 parts of a film-forming assistant;
10-20 parts of hollow ceramic beads;
0.2-0.5 part of a stabilizer;
0.5-1 part of an auxiliary agent;
15-20 parts of water.
2. The water-based silicate composite heat-insulating flame-retardant coating as claimed in claim 1, which is characterized by comprising the following components in parts by mass:
30 parts of inorganic nano silicate resin;
0.8 part of silicate water-based thixotropic agent;
5 parts of polycarbodiimide crosslinking agent;
5 parts of nano aerogel powder;
1 part of organic modified bentonite;
37 parts of pigment and filler;
2 parts of a film-forming additive;
10 parts of hollow ceramic beads;
0.2 part of a stabilizer;
1 part of an auxiliary agent;
and 15 parts of water.
3. The water-based silicate composite heat-insulating flame-retardant coating as claimed in claim 1, wherein the inorganic nano silicate resin is one or more of a silicate glue, an inorganic nano potassium silicate resin or an inorganic nano sodium silicate resin.
4. The water-based silicate composite heat-insulating flame-retardant coating as claimed in claim 1, wherein the silicate water-based thixotropic agent is one or more of LAPONITE S482, LAPONITE RD or LAPONITE RDS.
5. The aqueous silicate composite thermal insulation flame retardant coating as claimed in claim 1, wherein the polycarbodiimide crosslinking agent is ZOLDINE XL-29 SE.
6. The water-based silicate composite heat-insulating flame-retardant coating as claimed in claim 1, wherein the nano aerogel powder is SiO2Aerogel powder; the particle size of the nanoscale aerogel powder is 500-1000 nm.
7. The waterborne silicate composite heat-insulating flame-retardant coating as claimed in claim 1, wherein the organically modified bentonite is one or more of JY52, HY-708 or JY-610; the pigment and filler is one or more of kaolin, barium sulfate, quartz sand, corundum, rutile titanium dioxide, anatase titanium dioxide, marble powder or sericite powder; the film-forming auxiliary agent is one or more of dodecyl alcohol ester or ethylene glycol monobutyl ether; the particle size of the hollow ceramic beads is 500-800 meshes; the stabilizer is one or more of HV80 or At 2030.
8. The water-based silicate composite heat-insulating flame-retardant coating as claimed in claim 1, wherein the auxiliary agent is one or more of a dispersing agent, a defoaming agent, a wetting agent or a preservative.
9. The water-based silicate composite heat-insulating flame-retardant coating as claimed in claim 8, wherein the dispersant is one or more of NS 5040; the defoaming agent is one or more of NXZ or 154; the preservative is one or more of LXE or BIT 20.
10. The preparation method of the water-based silicate composite heat-insulating flame-retardant coating as claimed in any one of claims 1 to 9, characterized by comprising the following steps: mixing inorganic nano silicate resin, silicate aqueous thixotropic agent, polycarbodiimide cross-linking agent, nano aerogel powder, organic modified bentonite, pigment and filler, film forming additive, hollow ceramic beads, stabilizer and additive, stirring and dispersing to obtain the product.
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| CN111019415A (en) * | 2019-12-23 | 2020-04-17 | 广州市维思涂料科技有限公司 | Water-based inorganic mineral composite floor coating and preparation method thereof |
| CN114196296A (en) * | 2021-11-26 | 2022-03-18 | 山东铁斯曼新材料有限公司 | Glass fiber reinforced polyurethane section paint and coating process |
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