CN111100515A - Water-based sound-absorbing heat-insulating fireproof coating and preparation method thereof - Google Patents
Water-based sound-absorbing heat-insulating fireproof coating and preparation method thereof Download PDFInfo
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- CN111100515A CN111100515A CN201911395521.0A CN201911395521A CN111100515A CN 111100515 A CN111100515 A CN 111100515A CN 201911395521 A CN201911395521 A CN 201911395521A CN 111100515 A CN111100515 A CN 111100515A
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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
- C09D131/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an acyloxy radical of a saturated carboxylic acid, of carbonic acid, or of a haloformic acid; Coating compositions based on derivatives of such polymers
- C09D131/02—Homopolymers or copolymers of esters of monocarboxylic acids
- C09D131/04—Homopolymers or copolymers of vinyl acetate
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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
- C09D5/004—Reflecting paints; Signal 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
- C09D5/18—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
- C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- 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
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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Abstract
The invention discloses a water-based sound-absorbing heat-insulating fireproof coating and a preparation method thereof, belonging to the technical field of indoor coatings, wherein the coating comprises the following components in parts by mass: 20-35 parts of deionized water, 0.2-0.5 part of thickening agent A, 0.1-0.3 part of thickening agent B, 0.1-0.3 part of wetting agent, 0.3-0.8 part of dispersing agent, 0.4-0.6 part of defoaming agent, 3-5 parts of film-forming auxiliary agent, 0.1-0.3 part of pH value stabilizer, 1-2 parts of antifreezing agent, 20-30 parts of VAE emulsion, 10-15 parts of titanium pigment, 5-10 parts of perlite, 15-20 parts of porous powder quartz, 0.6-1.2 parts of flatting agent and 0.2-0.5 part of sterilizing mildew inhibitor. The product is non-toxic and harmless, has low cost, no environmental pollution, strong covering power and excellent heat-insulating, sound-absorbing and fireproof effects.
Description
Technical Field
The invention relates to the technical field of indoor coatings, in particular to a water-based sound-absorbing heat-insulating fireproof coating and a preparation method thereof.
Background
The fire-proof paint is a special paint which is used on the surface of flammable base material, can reduce the flammability of the surface of the material to be painted, can retard the rapid spread of fire and is used for improving the fire endurance of the material to be painted. The following can be classified according to the purpose and the object to be used: the coating comprises a finishing fireproof coating, a cable fireproof coating, a steel structure fireproof coating, a prestressed concrete floor fireproof coating and the like. Wherein the facing type fireproof paint is more and more valued in the architectural paint industry. However, the existing fireproof coating for decorating wall surfaces has a multi-injection heavy decoration effect and a poor fireproof effect.
In the national architectural decoration laws and regulations, the requirements for wall coatings, namely GB/T9756-2001, only specify the physical and chemical performance indexes of the interior wall coatings, and do not mention the fire-proof requirements; the requirements of national fire-fighting regulations on the finish type fireproof coating, namely GB12441-1998, only stipulates the fireproof performance indexes, and the physicochemical indexes of the coating are far from the indexes stipulated in GB/T9756-2001. Therefore, the physical and chemical performance indexes and the fire resistance of the fireproof finish type coating on the market cannot be considered at the same time, and part of raw materials used by the coating are not environment-friendly, and can generate high-concentration organic volatile compounds (VOCs) when being burnt in case of fire, even emit black smoke, so that the coating is very unfavorable for victims and rescuers in the fire. How to improve the fireproof and flame-retardant performance of the wall coating without losing the decorative effect and the environmental protection and health performance is a technical problem to be solved urgently in the field.
Moreover, the existing coating basically has no sound insulation and heat insulation functions, the noise pollution in the existing living environment is more and more serious, and in order to have a quiet living environment, the housing needs to be subjected to sound insulation treatment. With the development of the coating industry, sound insulation coatings are produced at the same time. The existing sound insulation coating adopts a nano multilayer structure material, a molecular material of the environment-friendly water-based coating is clamped in the middle, microparticles with sound insulation effect are uniformly distributed on the whole middle film, and the sound insulation effect is achieved by reducing projected sound wave energy. However, the existing sound insulation coating has the defects of poor sound insulation effect and volatile solvent in the coating, not only influences the sound insulation effect, but also causes environmental pollution.
Disclosure of Invention
The invention aims to provide a water-based sound-absorbing heat-insulating fireproof coating and a preparation method thereof, which are used for solving the problems in the prior art.
In order to achieve the purpose, the invention provides the following scheme:
the invention provides a water-based sound-absorbing heat-insulating fireproof coating which comprises the following components in parts by mass:
further, the wetting agent is nonionic low-foaming alkyl polyoxyethylene ether, such as BD-109 from Dow and LCN407 from Craine.
Further, the defoamer is a silica type defoamer, such as CF-246 of Blackberk, NXZ of Corning, F-111, etc., and the pigment and filler are effectively dispersed and form a stable, bubble-free and shrinkage-hole-free coating system.
Further, the thickener A is hydroxyethyl cellulose, prevents the sedimentation of heavy pigment and filler, and introduces yield value and thixotropy for a coating system, such as the hydroxyethyl cellulose of Astraria; the thickener B is a polyurethane thickener; the leveling agent is matched with a nonionic polyurethane thickening leveling agent. The two thickeners are used in a matching way, and the rheological behavior of the coating under low, medium and high shear rates is effectively adjusted, so that the interior wall coating with good leveling property, no sagging, good storage stability and good construction property is obtained.
Furthermore, the sterilization mildew preventive is one or a combination of a plurality of 2-n-octyl-4-isothiazoline-3-ketobenzimidazole, isothiazole derivatives and hydroxymethyl urea 1, 6 dihydroxy-2-5 dioxane, and has the functions of preventing the coating from rotting and deteriorating in the storage process and preventing the coating from mildewing after coating.
Further, the antifreezing agent is ethylene glycol or propylene glycol; the pH value stabilizer is 2-amino-2-methyl-1-propanol which is sold in the market; the film-forming aid is alcohol ester twelve. These aids primarily increase the freeze-thaw stability of the coating, aid in film formation and adjust the pH to increase the stability of the coating system.
Further, the titanium dioxide is rutile type titanium dioxide.
The invention also provides a preparation method of the water-based sound-absorbing heat-insulating fireproof coating, which comprises the following steps:
(1) preparing pre-coagulation slurry: adding deionized water into a dispersion tank, starting stirring, slowly adding a wetting agent, a dispersing agent and a thickening agent A while stirring at a low speed, and then dispersing for 3-5 min;
(2) premixing: increasing the dispersion speed, sequentially adding the antifreezing agent, the defoaming agent, the film-forming assistant and the pH value stabilizer into a dispersion cylinder, and stirring for 10-15 min;
(3) high-speed dispersion: adding titanium dioxide, porous quartz powder and perlite, dispersing at high speed for 30-40min, dispersing the pigment and filler into primary particles under the action of high-speed shear force, and obtaining a stable state under a wetting dispersion system;
(4) paint mixing: adding the VAE emulsion, the thickening agent B, the flatting agent and the sterilization mildew preventive, stirring while adding for 10-15min to prepare the water-based sound-absorbing heat-insulating fireproof coating.
Further, in the step (1), the low-speed stirring speed is 400-500 r/min; in the step (2), the dispersion rate is 500-700 r/min.
Further, in the step (3), the high-speed dispersion rate is 1500-; in the step (4), the stirring speed is 900-.
The invention discloses the following technical effects:
the water-based sound-absorbing heat-insulating fireproof coating provided by the invention is made of natural inorganic materials, is tasteless, pollution-free and nonirritant, has good fireproof performance, is not easy to deform, is not afraid of extrusion and collision, has high strength, does not fall off or bulge, is environment-friendly, and is safe and practical; the VAE emulsion is an environment-friendly material, and the addition proportion is reasonable, so that the prepared product is resistant to yellowing, flexing and bulging. The environment-friendly wall decoration fireproof coating provided by the invention is simple in preparation method, easy to operate, convenient to construct, capable of being directly coated on various base layer walls without binders, firm in bonding, free of cracking and long in service life of the walls.
The titanium dioxide is used as a pigment filler, has a good reflection effect on heat radiation, has ultrahigh reflectivity, can reduce heat accumulation, and plays a role in heat insulation in the coating.
The porous powder quartz has fine natural particle diameter of about 5um, uniform particle distribution and large specific surface area (8.3 m)2(g), the appearance structure is similar to spherical and angular-free, the surface of the material is all nano-scale mesopores, the average pore diameter is about 8.8nm (nanometer), and the material has the characteristics of sound insulation and heat insulation. The spherical and non-water chestnut shape can provide better fluidity than flaky, acicular and irregular filler particles, so that the coating has isotropy, the stress is uniformly dispersed, and the stress cracking of the coating caused by expansion with heat and contraction with cold can be reduced. According to the invention, the porous powder quartz is introduced, the environment-friendly heat-insulation functional coating with excellent heat-insulation performance is prepared by blending the proportion of the emulsion, the pigment and the filler and the auxiliary agent, and the coating prepared from the porous powder quartz has the advantages of obvious heat-insulation performance, strong heat-insulation performance and the like through an experiment on the heat-insulation effect of the heat-insulation coating layer.
Detailed Description
Reference will now be made in detail to various exemplary embodiments of the invention, the detailed description should not be construed as limiting the invention but as a more detailed description of certain aspects, features and embodiments of the invention.
It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Further, for numerical ranges in this disclosure, it is understood that each intervening value, between the upper and lower limit of that range, is also specifically disclosed. Every smaller range between any stated value or intervening value in a stated range and any other stated or intervening value in a stated range is encompassed within the invention. The upper and lower limits of these smaller ranges may independently be included or excluded in the range.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Although only preferred methods and materials are described herein, any methods and materials similar or equivalent to those described herein can be used in the practice or testing of the present invention. All documents mentioned in this specification are incorporated by reference herein for the purpose of disclosing and describing the methods and/or materials associated with the documents. In case of conflict with any incorporated document, the present specification will control.
It will be apparent to those skilled in the art that various modifications and variations can be made in the specific embodiments of the present disclosure without departing from the scope or spirit of the disclosure. Other embodiments will be apparent to those skilled in the art from consideration of the specification. The specification and examples are exemplary only.
As used herein, the terms "comprising," "including," "having," "containing," and the like are open-ended terms that mean including, but not limited to.
The "parts" in the present invention are all parts by mass unless otherwise specified.
Example 1
The invention relates to a water-based sound-absorbing heat-insulating fireproof coating, which comprises the following components in percentage by mass:
the wetting agent is nonionic low-foaming alkyl polyoxyethylene ether, such as Dow BD-109 and Clarian LCN407, wherein the Dow BD-109 is selected in the embodiment;
the thickener is hydroxyethyl cellulose, prevents the sedimentation of heavy pigment and filler, and introduces yield value and thixotropy for a coating system, such as 250HBR of Shilan; the thickener B is a polyurethane thickener; the leveling agent is a nonionic polyurethane thickening leveling agent, such as RM2020 or RM2050D of dow, in which RM2020 is selected for this embodiment. The two thickeners are used in a matching way, and the rheological behavior of the coating under low, medium and high shear rates is effectively adjusted, so that the interior wall coating with good leveling property, no sagging, good storage stability and good construction property is obtained.
The sterilization mildew preventive is 2-n-octyl-4-isothiazoline-3-ketone benzimidazole of Pvrogenin company, and has the functions of preventing the coating from being rotten and deteriorated in the storage process and preventing the coated film from mildewing.
The antifreezing agent is ethylene glycol; the pH stabilizer is AMP-95 sold in the market; the film-forming aid is alcohol ester twelve. These aids primarily increase the freeze-thaw stability of the coating, aid in film formation and adjust the pH to increase the stability of the coating system.
The VAE emulsion is used in the formula of the invention, and the VAE emulsion enables the self-adhesive property of the coating to be more excellent.
The preparation method of the water-based sound-absorbing heat-insulating fireproof coating comprises the following steps:
(1) preparing pre-coagulation slurry: adding deionized water into a dispersion tank, starting stirring, slowly adding a wetting agent, a dispersing agent and a thickening agent A while stirring at a low speed, and then dispersing for 4 min;
(2) premixing: increasing the dispersion speed, sequentially adding the antifreezing agent, the defoaming agent, the film-forming assistant and the pH value stabilizer into a dispersion cylinder, and stirring for 13 min;
(3) high-speed dispersion: adding titanium dioxide, porous quartz powder and perlite, dispersing at high speed for 35min, dispersing the pigment and filler into primary particles under the action of high-speed shear force, and obtaining a stable state under a wetting dispersion system;
(4) paint mixing: and adding the VAE emulsion, the thickening agent B, the flatting agent and the sterilization mildew preventive, stirring while adding for 13min to prepare the water-based sound-absorbing heat-insulating fireproof coating.
Example 2
Example 2 differs from example 1 in that: the invention relates to a water-based sound-absorbing heat-insulating fireproof coating, which comprises the following components in percentage by mass:
the bactericidal and mildew-proof agent is a combination of three of 2-n-octyl-4-isothiazoline-3-ketobenzimidazole, isothiazole derivatives and hydroxymethyl urea 1, 6 dihydroxy-2-5 dioxane of Pvrogenin company.
The antifreezing agent is propylene glycol.
The preparation method of the water-based sound-absorbing heat-insulating fireproof coating comprises the following steps:
preparation of a pre-coagulation slurry in step (1): adding deionized water into a dispersion cylinder, starting stirring, slowly adding a wetting agent, a dispersing agent and a thickening agent A while stirring at a low speed, setting the rotating speed at 450r/min, and then dispersing for 3 min;
premixing in step (2): increasing the dispersion speed, sequentially adding the antifreezing agent, the defoaming agent, the film-forming assistant and the pH value stabilizer into a dispersion cylinder, setting the rotation speed at 550r/min, and stirring for 5 min;
high speed dispersion in step (3): adding titanium dioxide, porous quartz powder and perlite, setting the rotating speed at 1800r/min, dispersing at high speed for 30min, dispersing the pigment and filler into primary particles under the action of high-speed shearing force, and obtaining a stable state under a wetting dispersion system;
preparing paint in the step (4): adding the VAE emulsion, the thickening agent B, the flatting agent and the sterilization and mildew prevention agent, stirring while adding, wherein the stirring time is 15min, and the rotating speed is set to 950r/min, so as to prepare the water-based sound-absorbing heat-insulating fireproof coating.
Example 3
Example 3 differs from example 1 in that: the invention relates to a water-based sound-absorbing heat-insulating fireproof coating, which comprises the following components in percentage by mass:
the sterilization mildew preventive is a combination of two of isothiazole derivatives and hydroxymethyl urea 1, 6 dihydroxy-2-5 dioxane.
The preparation method of the water-based sound-absorbing heat-insulating fireproof coating comprises the following steps:
preparation of a pre-coagulation slurry in step (1): adding deionized water into a dispersion cylinder, starting stirring, slowly adding a wetting agent, a dispersing agent and a thickening agent A while stirring at a low speed, setting the rotating speed at 400r/min, and then dispersing for 5 min;
premixing in step (2): increasing the dispersion speed, sequentially adding the antifreezing agent, the defoaming agent, the film-forming assistant and the pH value stabilizer into a dispersion cylinder, setting the rotation speed at 650r/min, and stirring for 10 min;
high speed dispersion in step (3): adding titanium dioxide, porous quartz powder and perlite, setting the rotating speed at 1700r/min, dispersing at high speed for 40min, dispersing the pigment and filler into primary particles under the action of high-speed shearing force, and obtaining a stable state under a wetting dispersion system;
preparing paint in the step (4): adding the VAE emulsion, the thickening agent B, the flatting agent and the sterilization and mildew prevention agent, stirring while adding, wherein the stirring time is 10min, and the rotating speed is set to 900r/min, so as to prepare the water-based sound-absorbing heat-insulating fireproof coating.
Comparative example 1
The difference from example 1 is that comparative example 1 replaces porous powder quartz with quartz powder in equal amount.
Comparative example 2
The difference from example 1 is that comparative example 2 does not have perlite added.
The test methods of the water-based sound-absorbing heat-insulating fireproof coating prepared in the examples 1-3 and the comparative example 2 are as follows:
the substrate for physical and chemical property tests (except for the damp-heat resistance test) meets the specified requirements of GB/T1727. The substrate for the resistance to moist heat test is a transparent organic glass plate having dimensions of about 150mm by 70mm by 1 mm. The base material for the fire resistance test conforms to the regulation of GB 12441-2018. The size of the flame retardant test base material is in accordance with the requirement of GB/T8625, and the size of other base materials for the fire resistance test is in accordance with the regulation of GB 12441-2018. The preparation of the physical and chemical property test piece is carried out according to the method specified in GB/T1727.
The physical and chemical properties of the test piece are adjusted for 48 hours under the environmental conditions of temperature (23 +/-2) DEG C and relative humidity of 50% +/-5%. After the fireproof performance test piece is coated to reach the specified wet coating ratio, the quality of the fireproof performance test piece is adjusted to be constant under the environmental conditions of the temperature (23 +/-2) DEG C and the relative humidity of 50% +/-5% (the fireproof performance test piece is weighed twice at an interval of 24h, and the quality change of the fireproof performance test piece is not more than +/-0.5%).
The results are shown in Table 1.
TABLE 1
As can be seen from Table 1, the coating formed by the water-based sound-absorbing heat-insulating fireproof coating disclosed by the invention has the advantages of good fireproof and heat-insulating properties, weather resistance and storage stability, and meets various performance standards of GB12441-2018 'finishing type fireproof coating'.
The reinforced sound-absorbing and heat-insulating test was performed on the aqueous sound-absorbing and heat-insulating fireproof coatings described in examples 1 to 3 and comparative examples 1 to 2, by dividing a wood board into two parts A and B in a closed cubic room at a constant temperature of 20 ℃, coating the wood board with the aqueous sound-absorbing and heat-insulating fireproof coating with a thickness of 2mm, measuring the thickness of the coating at a position 10cm away from the two sides of the wood board, calculating the average value of the left, middle and right positions of the wood board, respectively, and when the test started, raising the temperature of the part A to 30 ℃ and playing a 60dB sound source close to the wood board, and the test results are shown in Table 2.
TABLE 2
As can be seen from Table 2, the water-based sound-absorbing heat-insulating fireproof coating has good heat-insulating and sound-absorbing effects.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.
Claims (10)
1. The water-based sound-absorbing heat-insulating fireproof coating is characterized by comprising the following components in parts by mass:
2. the water-based sound-absorbing heat-insulating fireproof paint of claim 1, wherein the wetting agent is nonionic low-foaming alkyl polyoxyethylene ether.
3. The water-based sound-absorbing heat-insulating fireproof paint of claim 1, wherein the defoaming agent is a silica-type defoaming agent.
4. The water-based sound-absorbing heat-insulating fireproof paint of claim 1, wherein the thickener A is hydroxyethyl cellulose, and the thickener B is a polyurethane thickener.
5. The water-based sound-absorbing heat-insulating fireproof coating of claim 1, wherein the bactericidal and mildewproof agent is one or a combination of 2-n-octyl-4-isothiazoline-3-ketobenzimidazole, isothiazole derivatives and hydroxymethyl urea 1, 6 dihydroxy-2-5 dioxane.
6. The water-based sound-absorbing heat-insulating fireproof paint of claim 1, wherein the antifreezing agent is ethylene glycol or propylene glycol; the pH value stabilizer is 2-amino-2-methyl-1-propanol which is sold in the market; the film-forming aid is alcohol ester twelve.
7. The water-based sound-absorbing heat-insulating fireproof coating as claimed in claim 1, wherein the titanium dioxide is rutile type titanium dioxide.
8. The preparation method of the water-based sound-absorbing heat-insulating fireproof coating of any one of claims 1 to 7 is characterized by comprising the following steps:
(1) preparing pre-coagulation slurry: adding deionized water into a dispersion tank, starting stirring, slowly adding a wetting agent, a dispersing agent and a thickening agent A while stirring at a low speed, and then dispersing for 3-5 min;
(2) premixing: increasing the dispersion speed, sequentially adding the antifreezing agent, the defoaming agent, the film-forming assistant and the pH value stabilizer into a dispersion cylinder, and stirring for 10-15 min;
(3) high-speed dispersion: adding titanium dioxide, porous quartz powder and perlite, and dispersing at high speed for 30-40 min;
(4) paint mixing: adding the VAE emulsion, the thickening agent B, the flatting agent and the sterilization mildew preventive, stirring while adding for 10-15min to prepare the water-based sound-absorbing heat-insulating fireproof coating.
9. The method for preparing the water-based sound-absorbing heat-insulating fireproof coating as claimed in claim 8, wherein in the step (1), the low-speed stirring speed is 400-500 r/min; in the step (2), the dispersion rate is 500-700 r/min.
10. The method for preparing the water-based sound-absorbing heat-insulating fireproof coating as claimed in claim 8, wherein in the step (3), the high-speed dispersion rate is 1500-; in the step (4), the stirring speed is 900-.
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| CN113072772A (en) * | 2021-04-06 | 2021-07-06 | 安徽农业大学 | Sound-absorbing and heat-insulating automotive interior material and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112550183A (en) * | 2020-12-16 | 2021-03-26 | 重庆千能实业有限公司 | Lightweight automobile front wallboard of making an uproar that falls |
| CN113072772A (en) * | 2021-04-06 | 2021-07-06 | 安徽农业大学 | Sound-absorbing and heat-insulating automotive interior material and preparation method thereof |
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Application publication date: 20200505 |