CN116285433B - Preparation method and application method of inorganic waterproof flame-retardant sound-absorbing coating - Google Patents
Preparation method and application method of inorganic waterproof flame-retardant sound-absorbing coating Download PDFInfo
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- CN116285433B CN116285433B CN202211660545.6A CN202211660545A CN116285433B CN 116285433 B CN116285433 B CN 116285433B CN 202211660545 A CN202211660545 A CN 202211660545A CN 116285433 B CN116285433 B CN 116285433B
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- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 title claims abstract description 86
- 239000003063 flame retardant Substances 0.000 title claims abstract description 86
- 238000000576 coating method Methods 0.000 title claims abstract description 73
- 239000011248 coating agent Substances 0.000 title claims abstract description 70
- 238000000034 method Methods 0.000 title claims description 10
- 238000002360 preparation method Methods 0.000 title claims description 7
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- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims abstract description 38
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
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- 239000000843 powder Substances 0.000 claims abstract description 29
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000002270 dispersing agent Substances 0.000 claims abstract description 26
- 229920002472 Starch Polymers 0.000 claims abstract description 25
- 238000005507 spraying Methods 0.000 claims abstract description 25
- 239000008107 starch Substances 0.000 claims abstract description 25
- 235000019698 starch Nutrition 0.000 claims abstract description 25
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000010451 perlite Substances 0.000 claims abstract description 21
- 235000019362 perlite Nutrition 0.000 claims abstract description 21
- 238000010276 construction Methods 0.000 claims abstract description 20
- 239000004111 Potassium silicate Substances 0.000 claims abstract description 19
- 229920001296 polysiloxane Polymers 0.000 claims abstract description 19
- NNHHDJVEYQHLHG-UHFFFAOYSA-N potassium silicate Chemical compound [K+].[K+].[O-][Si]([O-])=O NNHHDJVEYQHLHG-UHFFFAOYSA-N 0.000 claims abstract description 19
- 235000019353 potassium silicate Nutrition 0.000 claims abstract description 19
- 229910052913 potassium silicate Inorganic materials 0.000 claims abstract description 19
- 239000000080 wetting agent Substances 0.000 claims abstract description 19
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 18
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000000440 bentonite Substances 0.000 claims abstract description 18
- 229910000278 bentonite Inorganic materials 0.000 claims abstract description 18
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910052726 zirconium Inorganic materials 0.000 claims abstract description 18
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 17
- 125000002091 cationic group Chemical group 0.000 claims abstract description 17
- 239000000463 material Substances 0.000 claims abstract description 17
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 17
- 239000010703 silicon Substances 0.000 claims abstract description 17
- 230000002195 synergetic effect Effects 0.000 claims abstract description 17
- 239000004088 foaming agent Substances 0.000 claims abstract description 16
- 239000003755 preservative agent Substances 0.000 claims abstract description 14
- 230000002335 preservative effect Effects 0.000 claims abstract description 14
- 239000012796 inorganic flame retardant Substances 0.000 claims abstract description 13
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 13
- 239000010445 mica Substances 0.000 claims abstract description 12
- 229910052618 mica group Inorganic materials 0.000 claims abstract description 12
- 239000003381 stabilizer Substances 0.000 claims abstract description 12
- 239000004965 Silica aerogel Substances 0.000 claims abstract description 10
- 230000003449 preventive effect Effects 0.000 claims abstract description 7
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims abstract description 6
- 238000003756 stirring Methods 0.000 claims description 87
- 239000002002 slurry Substances 0.000 claims description 34
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- 150000007949 saponins Chemical class 0.000 claims description 5
- 239000004964 aerogel Substances 0.000 claims description 4
- ONCZQWJXONKSMM-UHFFFAOYSA-N dialuminum;disodium;oxygen(2-);silicon(4+);hydrate Chemical group O.[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[Na+].[Na+].[Al+3].[Al+3].[Si+4].[Si+4].[Si+4].[Si+4] ONCZQWJXONKSMM-UHFFFAOYSA-N 0.000 claims description 4
- 239000000377 silicon dioxide Substances 0.000 claims description 4
- 229940080314 sodium bentonite Drugs 0.000 claims description 4
- 229910000280 sodium bentonite Inorganic materials 0.000 claims description 4
- 125000000217 alkyl group Chemical group 0.000 claims description 3
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 3
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- 235000012239 silicon dioxide Nutrition 0.000 claims description 3
- 159000000000 sodium salts Chemical class 0.000 claims description 3
- AKFOHAJXLDHIEH-SNVBAGLBSA-N (3r)-3-(cyclobutanecarbonyloxy)-4-(trimethylazaniumyl)butanoate Chemical compound C[N+](C)(C)C[C@@H](CC([O-])=O)OC(=O)C1CCC1 AKFOHAJXLDHIEH-SNVBAGLBSA-N 0.000 claims description 2
- 229920005646 polycarboxylate Polymers 0.000 claims 1
- 238000010521 absorption reaction Methods 0.000 abstract description 20
- 239000000853 adhesive Substances 0.000 abstract description 11
- 230000001070 adhesive effect Effects 0.000 abstract description 11
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- 229920000663 Hydroxyethyl cellulose Polymers 0.000 description 2
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- 229910001424 calcium ion Inorganic materials 0.000 description 2
- 239000000378 calcium silicate Substances 0.000 description 2
- 229910052918 calcium silicate Inorganic materials 0.000 description 2
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 2
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- LVDKZNITIUWNER-UHFFFAOYSA-N Bronopol Chemical compound OCC(Br)(CO)[N+]([O-])=O LVDKZNITIUWNER-UHFFFAOYSA-N 0.000 description 1
- 229920000881 Modified starch Polymers 0.000 description 1
- AOMUHOFOVNGZAN-UHFFFAOYSA-N N,N-bis(2-hydroxyethyl)dodecanamide Chemical group CCCCCCCCCCCC(=O)N(CCO)CCO AOMUHOFOVNGZAN-UHFFFAOYSA-N 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 206010040844 Skin exfoliation Diseases 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
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- 229960003168 bronopol Drugs 0.000 description 1
- 229920003064 carboxyethyl cellulose Polymers 0.000 description 1
- DHNRXBZYEKSXIM-UHFFFAOYSA-N chloromethylisothiazolinone Chemical group CN1SC(Cl)=CC1=O DHNRXBZYEKSXIM-UHFFFAOYSA-N 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
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- 231100000517 death Toxicity 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
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- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- 238000011156 evaluation Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 230000030279 gene silencing Effects 0.000 description 1
- 239000012784 inorganic fiber Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
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- 150000002500 ions Chemical class 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
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- 229910021645 metal ion Inorganic materials 0.000 description 1
- BEGLCMHJXHIJLR-UHFFFAOYSA-N methylisothiazolinone Chemical compound CN1SC=CC1=O BEGLCMHJXHIJLR-UHFFFAOYSA-N 0.000 description 1
- 239000011325 microbead Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 125000004344 phenylpropyl group Chemical group 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920005596 polymer binder Polymers 0.000 description 1
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- 239000002341 toxic gas Substances 0.000 description 1
- 239000010455 vermiculite Substances 0.000 description 1
- 229910052902 vermiculite Inorganic materials 0.000 description 1
- 235000019354 vermiculite Nutrition 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
-
- 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
-
- 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
- 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
- C09D7/65—Additives macromolecular
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Abstract
An inorganic waterproof flame-retardant sound-absorbing coating is prepared from the following components in parts by weight: 22 to 30 parts of water, 0.7 to 1.1 parts of dispersing agent and wetting agent: 0.2 to 0.4 part of ceramic fiber bulk cotton 8 to 10 parts of bentonite 0.8 to 1.0 part of cationic starch ether 0.6 to 0.8 part of stabilized silica sol 15 to 20 parts of stabilized potassium silicate 5 to 7 parts of titanium dioxide 8 to 10 parts of mica powder 5 to 10 parts of silica aerogel 4 to 6 parts of expanded perlite micro powder 4 to 6 parts of nano aluminum hydroxide inorganic flame retardant 6 to 8 parts of silicon-based synergistic flame retardant 0.5 to 0.7 part of silicone zirconium 2 to 4 parts of preservative 0.2 to 0.4 part of mildew preventive 0.6 to 0.8 part of foaming agent 0.3 to 0.5 part of foam stabilizer 0.1 to 0.3 part of color paste. The paint has high sound absorption performance and excellent waterproof performance, and is applicable to both indoor and outdoor; the binding material is inorganic component, has stable storage performance, is fireproof and flame retardant, can reach A1 level incombustible performance, and has smoke toxicity meeting AQ1 level; the adhesive strength is high, the sagging resistance is excellent, the thick coating construction can be realized, and the one-time spraying is carried out for 0.5-1.0 cm; is easy to color, and has rich colors.
Description
Technical Field
The invention relates to the technical field of building decoration functional paint, in particular to a preparation method and a use method of inorganic waterproof flame-retardant sound-absorbing paint.
Background
In order to reduce the influence of noise on civil buildings and ensure good indoor sound environment of the civil buildings, the national requirements for sound insulation and noise reduction design are increased in the building designs of residential buildings, school buildings, hospital buildings, hotel buildings, office buildings, business buildings and the like. Because the sound-absorbing paint has simple and convenient production and construction, rich colors and good decorative performance, the sound-absorbing paint has wider and wider application in the environment needing sound absorption and noise reduction, and in addition, compared with the sound-absorbing cotton of similar performance products, the sound-absorbing paint has more convenient and flexible construction, is not limited by sites, reduces material loss to a certain extent and reduces construction cost. The sound-absorbing coating is an environment-friendly material, and does not cause secondary pollution to the environment like spraying inorganic fiber cotton during construction and operation. In recent years, with the improvement and development of technology, sound-absorbing paint gradually replaces other similar functional products.
According to the building sound insulation evaluation standard classification, the sound absorption and insulation products on the market mainly comprise two major categories of air sound insulation and sound absorption paint and impact sound insulation paint. The impact sound insulation coating mainly comprises soft particle aggregates such as expanded perlite particles, vitrified microbead particles, rubber powder, expanded vermiculite, floating beads and the like, and the material is of a porous structure, can effectively slow down impact force and plays a role in damping and silencing, but because the product is in a particle loose state, the adhesive force on a three-dimensional wall surface is poor, sagging is easy, the impact sound insulation coating is only suitable for floor impact sound insulation, and meanwhile, pores of the porous material cannot be mutually communicated and go deep into the interior of a sound absorption coating, so that the air sound absorption performance is relatively poor, and the impact sound insulation coating cannot be applied to the sound absorption and noise reduction of three-dimensional interfaces such as walls and tops. The existing air sound insulation and absorption coating mainly comprises fiber porous sound absorption materials, such as centrifugal glass cotton, rock cotton, mineral cotton, plant fiber spraying and the like, the sound absorption coating has poor moisture resistance and weather resistance and is usually limited to indoor use, meanwhile, the materials are usually made of acrylic ester copolymers such as vinyl acetate, chloroprene rubber emulsion, polyvinyl alcohol, phenylpropyl and the like or high-viscosity organic high polymer materials such as epoxy resin, polyurethane and the like as binders, and the necessary condition of porous material sound absorption is that the materials have a large number of gaps, the gaps are mutually communicated, the gaps are deep into the materials, and the high polymer binders are solidified into a film and compact, so that pore channels of the materials such as Kong Xiyin are sealed, and the sound absorption performance of the porous sound absorption material is reduced. Meanwhile, the high polymer materials are petrochemical products and inflammable products, a large amount of toxic smoke is generated when a fire disaster occurs, and the fact proves that 80% of deaths in the fire disaster are caused by smoke choking, so that the requirements of fire-fighting smoke production toxicity safety inspection and acceptance are not met, and meanwhile, the sound-absorbing paint using the petrochemical products as raw materials is easy to release benzene series and VOC volatile organic compounds, so that the environment-friendly safety performance is not in accordance with the requirements of green healthy development.
Disclosure of Invention
The invention aims to solve the technical problem of providing an inorganic waterproof flame-retardant sound-absorbing coating which has high sound-absorbing performance and stable performance and is applicable to indoor and outdoor environments, and a preparation method and a use method thereof.
In order to solve the technical problems, the invention provides an inorganic waterproof flame-retardant sound-absorbing coating which is characterized by being prepared from the following components in parts by weight: 22 to 30 parts of water, 0.7 to 1.1 parts of dispersing agent and wetting agent: 0.2 to 0.4 part of ceramic fiber bulk cotton 8 to 10 parts of bentonite 0.8 to 1.0 part of cationic starch ether 0.6 to 0.8 part of stabilized silica sol 15 to 20 parts of stabilized potassium silicate 5 to 7 parts of titanium dioxide 8 to 10 parts of mica powder 5 to 10 parts of silica aerogel 4 to 6 parts of expanded perlite micro powder 4 to 6 parts of nano aluminum hydroxide inorganic flame retardant 6 to 8 parts of silicon-based synergistic flame retardant 0.5 to 0.7 part of silicone zirconium 2 to 4 parts of preservative 0.2 to 0.4 part of mildew preventive 0.6 to 0.8 part of foaming agent 0.3 to 0.5 part of foam stabilizer 0.1 to 0.3 part of color paste; the total amount is 100 parts; the cationic starch is quaternary ammonium salt cationic starch;
the preparation method of the inorganic waterproof flame-retardant sound-absorbing coating comprises the following steps:
step one, preparing a ceramic fiber loose cotton dispersion liquid:
in a pre-dispersing cylinder, adjusting the rotating speed to 800 revolutions per minute, sequentially adding 0.4-0.6 part of dispersing agent and 0.2-0.4 part of wetting agent into 12-16 parts of water according to the weight ratio, fully stirring for 5 minutes, adjusting the rotating speed to 400 revolutions per minute, slowly adding 8-10 parts of ceramic fiber scattered cotton, stirring for 20-25 minutes to fully disperse the ceramic fiber scattered cotton from flocculent, and standing and soaking for 24 hours to fully soften the ceramic fiber;
step two, preparing inorganic waterproof flame-retardant sound-absorbing material slurry:
adding 0.3-0.5 part of dispersing agent, 0.8-1.0 part of bentonite and 0.6-0.8 part of cationic starch ether into 10-14 parts of water in a weight ratio in a production cylinder, stirring for 10-15 minutes at a rotating speed of 800 revolutions per minute, adding 15-20 parts of stabilized silica sol and 5-7 parts of stabilized potassium silicate in a stirring state, and stirring for 10-15 minutes until the components are fully and uniformly dispersed; then adding 8-10 parts of titanium dioxide, 5-10 parts of mica powder, 4-6 parts of silicon dioxide aerogel, 4-6 parts of expanded perlite micropowder, 6-8 parts of inorganic flame retardant, 0.5-0.7 part of silicon-based synergistic flame retardant and 2-4 parts of silicone zirconium in sequence, and after the adding, raising the stirring speed to 1500 rpm and dispersing at a high speed for 30 minutes; reducing the rotating speed to 800 rpm after dispersing, adding 0.2-0.4 part of preservative and 0.6-0.8 part of mildew inhibitor in a stirring state, and stirring for 5-10 minutes after adding to obtain inorganic waterproof flame-retardant sound-absorbing material slurry;
step three, preparing inorganic waterproof flame-retardant sound-absorbing paint:
and (3) regulating the rotating speed to 800 revolutions per minute in the inorganic waterproof flame-retardant sound-absorbing material slurry prepared in the production cylinder, adding 0-0.5 part of the ceramic fiber dispersion liquid prepared in the step one and the color paste into the slurry in a stirring state, stirring for 10-15 minutes until the color is uniform, preparing the slurry into a target color according to a CBCC Chinese building color card, sequentially adding 0.3-0.5 part of a foaming agent and 0.1-0.3 part of a foam stabilizer, and stirring for 5-10 minutes until uniform foam is generated, thus obtaining the inorganic waterproof flame-retardant sound-absorbing coating.
Preferably, the dispersing agent is a polycarboxylic acid sodium salt dispersing agent; the wetting agent is alkyl polyoxyethylene ether wetting agent; the bentonite is sodium bentonite; the foaming agent is tea saponin.
Preferably, the porosity of the ceramic fiber bulk cotton is more than 90%; the expanded perlite micropowder is in powder form with the particle size of 0.015-0.075 mm, the molecular structure of the expanded perlite micropowder is honeycomb-shaped, and the particle stacking polymer has the porosity of 80-90%.
Meanwhile, the invention also provides a using method of the inorganic waterproof flame-retardant sound-absorbing paint, which is suitable for cement-based wall surfaces including but not limited to concrete or cement mortar or putty, and the inorganic waterproof flame-retardant sound-absorbing paint is firstly stirred for 3 to 5 minutes at 400 rpm by a hand-held electric stirrer until uniform foam is generated before being used, and then is sprayed by a real stone paint spraying gun with the caliber of 8 to 12 mm; the total coating thickness of the sound-absorbing paint is more than 0.5cm, the primary spraying thickness can reach 0.5-1.0 cm, the consumption per 0.5cm thickness is 5 kg/square meter, and the secondary construction time interval of the wall body and the ceiling is more than 24 hours.
The beneficial effects of the invention are as follows:
1. the invention uses ceramic fiber cotton as a skeleton of the sound-absorbing paint, the porosity of the ceramic fiber cotton is high (more than 90%), so that sound waves can penetrate into the interior of the paint along the pores, and the sound waves and the sound-absorbing paint generate friction action to fully convert sound energy into heat energy.
2. The waterproof performance is good, and the waterproof coating is applicable to indoor and outdoor. The active silicone zirconium introduced by the invention can permeate into cement-based layers such as concrete, cement mortar plastering base layers, putty base layers and the like, and chemically react with calcium ions in the cement-based layers to generate water-insoluble calcium silicate hydrate (dendrite crystal) in pores and cracks, so that the base layers are compact, water leakage is prevented, and the active silicone zirconium has catalytic properties, can continuously grow and fill capillary pores in the cement-based layers once meeting water, and can automatically repair crystals after meeting water even if the base layers are locally damaged and leaked. Meanwhile, the silicon-based synergistic flame retardant introduced by the invention contains a large amount of polysiloxane and has the characteristics of moisture resistance and hydrophobicity at normal temperature, so that the sound-absorbing paint provided by the invention has excellent hydrophobicity.
3. The fire-proof flame-retardant sound-absorbing paint has the advantages that the main raw materials are inorganic non-combustible materials, the non-combustible inorganic adhesive is used for stabilizing potassium silicate, and the stabilized silica sol is used for replacing inflammable high-molecular polymer emulsion adhesive, so that the combustion performance of the inorganic waterproof flame-retardant sound-absorbing paint is improved, and the release of VOC harmful substances is reduced, meanwhile, the melting point of the ceramic fiber cotton wool selected by the invention is up to 1760 ℃, and the ceramic fiber cotton wool is an inorganic non-combustible fireproof material with excellent performance.
4. The invention introduces Zr while solving the waterproof performance and flame retardant performance of the sound-absorbing paint 4+ 、Al 3+ 、Mg 2+ The invention introduces cationic starch ether to fully react with stabilized potassium silicate and stabilized silica sol before adding filler, silicone zirconium and inorganic flame retardant in the preparation process, and the quaternary ammonium salt cation in the cationic starch ether replaces the original monovalent cation by ion exchange with silicate anions with different polymerization degrees and monovalent cations balanced on the surface of the silica sol, and is adsorbed on the silicate anions by charge attraction, thereby preventing the silicate anions in the inorganic binder from reacting with the high-valence metal cations introduced later or self-polymerizing reaction, preventing the inorganic binder from curing, and improving the storage stability of the sound-absorbing paint.
The paint disclosed by the invention has high bonding strength and excellent sagging resistance, can be applied in thick coating, and can be sprayed for 0.5-1.0 cm at a time; meanwhile, the color is easy to be mixed and the color is rich.
Detailed Description
The technical scheme of the present invention is further described below by examples, which are only preferred embodiments for illustrating the technical scheme of the present invention, and do not limit the present invention.
The various components of the present invention are commercially available. In the present invention, "parts" refer to parts by weight. In an embodiment of the invention:
the dispersant is preferably a polycarboxylic acid sodium salt dispersant for dispersing ceramic fiber random cotton and pigment filler, and in the examples, the dispersant is SN-5040 made by Santopulaceae.
The wetting agent is preferably an alkyl polyoxyethylene ether wetting agent for reducing the surface tension of the ceramic fiber bulk cotton, so that the ceramic fiber bulk cotton is easier to wet by water and easy to disperse, and in an embodiment, the wetting agent is LCN407 wetting agent manufactured by Kelain company.
The ceramic fiber cotton is taken as a skeleton of the sound-absorbing coating, the porosity of the ceramic fiber cotton is more than 90%, so that sound waves can penetrate into the interior of the coating along the pores, the sound waves and the sound-absorbing coating are subjected to friction action to fully convert sound energy into heat energy, meanwhile, the melting point of the ceramic fiber cotton is up to 1760 ℃, and the ceramic fiber cotton is an inorganic incombustible fireproof material with excellent performance, and in the embodiment, the ceramic fiber cotton is white ceramic fiber cotton manufactured by Zhejiang Jiahua crystal fiber Co Ltd and having the model number T1000.
The bentonite is sodium bentonite, and the bentonite is dispersed into gel and suspension in water, so that the sound-absorbing paint is not easy to precipitate and delaminate, the sound-absorbing paint is more stable, and meanwhile, the bentonite has good adhesive force and plasticity, so that the sag resistance of the sound-absorbing paint is improved, and the sound-absorbing paint can be applied in thick coating. In the examples, sodium bentonite produced by the company of bentonite, limited liability, of ten thousand courses in the black mountain county was used as bentonite.
The cationic starch is quaternary ammonium salt cationic starch, quaternary ammonium salt cations in the quaternary ammonium salt cationic starch are subjected to ion exchange with silicate anions with different polymerization degrees and monovalent cations balanced on the surface of silica sol to replace the original monovalent cations, and the silicate anions in the inorganic binder are adsorbed on the silicate anions through charge attraction to prevent the silicate anions from reacting with high-valence metal cations introduced at the back or self-polymerizing reaction, so that the curing of the inorganic binder is prevented, the storage stability of the sound-absorbing paint is improved, meanwhile, the netlike structure characteristic of the cations greatly improves the sagging resistance of the sound-absorbing paint, so that the sound-absorbing paint can be applied in a thick coating manner, and the sound-absorbing paint can be sprayed for 0.5cm to 1.0cm at one time without sagging phenomenon, and the construction performance of the sound-absorbing paint is greatly improved. In the examples, the quaternary ammonium salt cationic starch is a quaternary ammonium salt cationic starch produced by Taian Jinshan modified starch Co.
The silica colloid in the stabilized silica sol has larger particle size than polysilicate in the stabilized potassium silicate, has high curing speed, can be quickly cured to form a water-resistant coating, can obviously improve early water resistance, stain resistance, salting-out resistance and color stability, so that the sound-absorbing coating can be suitable for external walls in tropical and rainy areas, the defects of poor adhesive force and easy powder falling of the silica sol are overcome by introducing the stabilized potassium silicate, the adhesive force of the sound-absorbing coating is improved by the synergistic effect of the stabilized potassium silicate and the silica sol, the risk of peeling and cracking is reduced, and the sound-absorbing coating has better water resistance, stain resistance and weather resistance. In an example, the stabilized silica sol is an AH-G3 silica sol, model number, and the stabilized potassium silicate is a K100 stabilized potassium silicate, model number, from Shanghai, australian chemical industry.
The titanium dioxide is rutile titanium dioxide, and is ATR-312 titanium dioxide manufactured by An Nada titanium industry Co., ltd.
The mica powder is 1000-mesh sericite powder, and the flaky monoclinic crystal with glass luster has excellent reflection performance on shock waves and sound waves, so that the sound-absorbing coating honeycomb air chamber has repeated reflection performance, noise is continuously rubbed and converted into heat energy, and noise is further reduced.
The silica aerogel is of a porous sponge-like structure, is light in weight and has a porosity reaching 90-95% as a filling material, is favorable for noise reduction by fully penetrating friction and converting into heat energy, has low sound wave transmission speed of about 100m/s, and is an efficient sound insulation material. In an embodiment, the silica aerogel is AG-D aerogel powder manufactured by Shenzhen middle condensation technology Co.
The expanded perlite micro powder is in a powder shape with the particle size of 0.015-0.075 mm, the molecular structure of the expanded perlite micro powder is honeycomb, and the particle piled polymer has the porosity of 80-90%, so that the expanded perlite micro powder is favorable for noise reduction by fully penetrating friction and converting the noise into heat energy, and in the embodiment, the expanded perlite micro powder is 200-mesh expanded perlite micro powder produced by Henan Cheng insulation materials Co.
The inorganic flame retardant is nano aluminum hydroxide, has the characteristics of no toxicity, good stability, no toxic gas generation at high temperature, capability of reducing the smoke generation amount when the sound-absorbing coating burns, and the like, and has the advantages of low consumption, good dispersibility and better flame retardant effect compared with the common aluminum hydroxide.
The silicon-based synergistic flame retardant is an organic silicon efficient flame retardant, can be used as an effective flame retardant synergist of the nano aluminum hydroxide flame retardant, and can quickly generate a si-c barrier layer when the siloxane is combusted, so that a flame retardant and smoke suppression effect is achieved; the silicon-based synergistic flame retardant has the characteristics of moisture resistance and hydrophobicity at normal temperature, so that the sound-absorbing coating provided by the invention has excellent hydrophobicity, and in the embodiment, the silicon-based synergistic flame retardant is FCA-107 silicon-based synergistic flame retardant manufactured by Dow Corning company.
The silicone zirconium permeates into the cement base layer under the action of water, and chemically reacts with calcium ions in the cement base layer to generate water-insoluble calcium silicate hydrate (dendrite) in pores and cracks, so that the base layer is compact, water leakage is prevented, the capillary pore channels are catalytic, once water is met, capillary pores in the cement base layer can be continuously grown and filled, and even if the base layer is locally damaged and leaked, crystallization can be generated to repair the cement base layer by itself. In an embodiment, the silicone zirconium is an activated silicone zirconium manufactured by Longkou chemical company, inc.
The foaming agent is tea saponin, is a foaming agent extracted from natural plants, does not contain petrochemical products, and has excellent stability, and can not foam for a long time, and in the embodiment, the foaming agent is NAT-225 tea saponin manufactured by Hunan Langline biological resource Co., ltd.
The foam stabilizer is coco diethanolamide, can control the stability structure of a bubble liquid film generated by tea saponin, endows the foam with good elasticity and self-repairing capability, and achieves the effect of stabilizing the foam.
The preservative is a compound preservative, the active component is 5-chloro-2-methyl-4-isothiazolin-3-one (CMI), 2-methyl-4-isothiazolin-3-one (MI) and bronopol, and in an embodiment, the preservative is CPW preservative manufactured by Sanhe Huffman chemical manufacturing company; as a preferred mode, the mildew preventive is a dry film mildew preventive, and in an embodiment, the mildew preventive is a model M6 high performance dry film mildew preventive manufactured by Hofmann chemical manufacturing Co., ltd.
The color paste is an aqueous color paste, and in an embodiment, the color paste is an aqueous super-dispersion color paste S series product produced by Guangdong Kodi New materials Co.
The steps, components and proportions of each example and comparative example are shown in Table one:
list one
Example 1
Step one, preparing a ceramic fiber cotton dispersion liquid.
In a pre-dispersing cylinder, adjusting the rotating speed to 800 revolutions per minute, sequentially adding 0.6Kg of dispersing agent and 0.4Kg of wetting agent into 12Kg of water, fully stirring for 5 minutes, adjusting the rotating speed to 400 revolutions per minute, slowly adding 8Kg of ceramic fiber loose cotton, stirring for 20-25 minutes to fully disperse the ceramic fiber loose cotton from flocculent, and standing and soaking for 24 hours to fully soften the ceramic fiber.
And step two, preparing inorganic waterproof flame-retardant sound-absorbing material slurry.
In a production cylinder, adding 0.5Kg of dispersing agent, 0.8Kg of bentonite and 0.6Kg of cationic starch ether into 10Kg of water in sequence, stirring for 10-15 minutes at a rotation speed of 800 revolutions per minute, then adding 20Kg of stabilized silica sol and 7Kg of stabilized potassium silicate in a stirring state, stirring for 10-15 minutes until the mixture is fully and uniformly dispersed, then adding 8Kg of titanium dioxide, 10Kg of mica powder, 6Kg of silica aerogel, 6Kg of expanded perlite micropowder, 6Kg of inorganic flame retardant, 0.5Kg of silicon-based synergistic flame retardant and 2Kg of silicone zirconium in sequence, increasing the stirring speed to 1500 revolutions per minute after the addition, dispersing for 30 minutes at a high speed, reducing the rotation speed to 800 revolutions per minute after the dispersion, adding 0.2Kg of preservative and 0.6Kg of mildew inhibitor in a stirring state, and stirring for 5-10 minutes after the addition, thus obtaining the inorganic waterproof flame-retardant sound-absorbing material slurry.
And thirdly, preparing the inorganic waterproof flame-retardant sound-absorbing coating.
And (3) regulating the rotating speed to 800 revolutions per minute in the inorganic waterproof flame-retardant sound-absorbing material slurry prepared in the production cylinder, adding 0Kg of the ceramic fiber dispersion liquid and the color paste prepared in the step one into the slurry in a stirring state, stirring for 10-15 minutes to a uniform color state, sequentially adding 0.5Kg of the foaming agent and 0.3Kg of the foam stabilizer, and stirring for 5-10 minutes to generate uniform foam to obtain the inorganic waterproof flame-retardant sound-absorbing coating.
The method of using the inorganic waterproof flame-retardant sound-absorbing coating of this example 1 is as follows:
the inorganic waterproof flame-retardant sound-absorbing coating prepared by the steps is suitable for cement-based wall surfaces such as concrete, cement mortar and putty, is firstly stirred for 3-5 minutes at 400 rpm by using a handheld electric stirrer until uniform foam is generated, is then sprayed by using a real stone paint spraying gun with the caliber of 8-12 mm, and is similar to the real stone paint spraying, and the construction thickness of the sound-absorbing coating reaches 2.0cm by spraying twice.
Example 2
Step one, preparing a ceramic fiber cotton dispersion liquid.
In a pre-dispersing cylinder, adjusting the rotating speed to 800 revolutions per minute, sequentially adding 0.5Kg of dispersing agent and 0.3Kg of wetting agent into 14Kg of water, fully stirring for 5 minutes, adjusting the rotating speed to 400 revolutions per minute, slowly adding 9Kg of ceramic fiber loose cotton, stirring for 20-25 minutes to fully disperse the ceramic fiber loose cotton from flocculent, and then standing until soaking for 24 hours to fully soften the ceramic fiber.
And step two, preparing inorganic waterproof flame-retardant sound-absorbing material slurry.
In a production cylinder, adding 0.4Kg of dispersing agent, 0.9Kg of bentonite and 0.7Kg of cationic starch ether into 12Kg of water in sequence, stirring for 10-15 minutes at a rotation speed of 800 revolutions per minute, then adding 17Kg of stabilized silica sol and 6Kg of stabilized potassium silicate in a stirring state, stirring for 10-15 minutes until the mixture is fully and uniformly dispersed, then adding 9Kg of titanium dioxide, 8Kg of mica powder, 5Kg of silica aerogel, 5Kg of expanded perlite micropowder, 7Kg of inorganic flame retardant, 0.6Kg of silicon-based synergistic flame retardant and 3Kg of silicone zirconium in sequence, increasing the stirring speed to 1500 revolutions per minute after the addition, dispersing for 30 minutes at a high speed, reducing the rotation speed to 800 revolutions per minute after the dispersion, adding 0.3Kg of preservative and 0.7Kg of mildew inhibitor in a stirring state, and stirring for 5-10 minutes after the addition to obtain the inorganic waterproof flame-retardant sound-absorbing material slurry.
And thirdly, preparing the inorganic waterproof flame-retardant sound-absorbing coating.
And (3) regulating the rotating speed to 800 revolutions per minute in the inorganic waterproof flame-retardant sound-absorbing material slurry prepared in the production cylinder, adding 0Kg of the ceramic fiber dispersion liquid and the color paste prepared in the step one into the slurry in a stirring state, stirring for 10-15 minutes to a uniform color state, sequentially adding 0.4Kg of the foaming agent and 0.2Kg of the foam stabilizer, and stirring for 5-10 minutes to generate uniform foam to obtain the inorganic waterproof flame-retardant sound-absorbing coating.
The application method of the inorganic waterproof flame-retardant sound-absorbing paint provided by the invention comprises the following steps:
the inorganic waterproof flame-retardant sound-absorbing coating prepared by the steps is suitable for cement-based wall surfaces such as concrete, cement mortar and putty, is firstly stirred for 3-5 minutes at 400 rpm by using a handheld electric stirrer until uniform foam is generated, is then sprayed by using a real stone paint spraying gun with the caliber of 8-12 mm, and is similar to the real stone paint spraying, and the construction thickness of the sound-absorbing coating reaches 2.0cm by spraying twice.
Example 3
Step one, preparing a ceramic fiber cotton dispersion liquid.
In a pre-dispersing cylinder, adjusting the rotating speed to 800 revolutions per minute, sequentially adding 0.4Kg of dispersing agent and 0.2Kg of wetting agent into 16Kg of water, fully stirring for 5 minutes, adjusting the rotating speed to 400 revolutions per minute, slowly adding 10Kg of ceramic fiber loose cotton, stirring for 20-25 minutes to fully disperse the ceramic fiber loose cotton from flocculent, and then standing until soaking for 24 hours to fully soften the ceramic fiber.
And step two, preparing inorganic waterproof flame-retardant sound-absorbing material slurry.
In a production cylinder, adding 0.3Kg of dispersing agent, 1.0Kg of bentonite and 0.8Kg of cationic starch ether into 14Kg of water in sequence, stirring for 10-15 minutes at a rotation speed of 800 revolutions per minute, then adding 15Kg of stabilized silica sol and 5Kg of stabilized potassium silicate in a stirring state, stirring for 10-15 minutes until the mixture is fully and uniformly dispersed, then adding 10Kg of titanium dioxide, 5Kg of mica powder, 4Kg of silica aerogel, 4Kg of expanded perlite micropowder, 8Kg of inorganic flame retardant, 0.7Kg of silicon-based synergistic flame retardant and 4Kg of silicone zirconium in sequence, increasing the stirring speed to 1500 revolutions per minute after the addition, dispersing for 30 minutes at a high speed, reducing the rotation speed to 800 revolutions per minute after the dispersion, adding 0.4Kg of preservative and 0.8Kg of mildew inhibitor in a stirring state, and stirring for 5-10 minutes after the addition to obtain the inorganic waterproof flame-retardant sound-absorbing material slurry.
And thirdly, preparing the inorganic waterproof flame-retardant sound-absorbing coating.
And (3) regulating the rotating speed to 800 revolutions per minute in the inorganic waterproof flame-retardant sound-absorbing material slurry prepared in the production cylinder, adding 0Kg of the ceramic fiber dispersion liquid and the color paste prepared in the step one into the slurry in a stirring state, stirring for 10-15 minutes to a uniform color state, sequentially adding 0.3Kg of the foaming agent and 0.1Kg of the foam stabilizer, and stirring for 5-10 minutes to generate uniform foam to obtain the inorganic waterproof flame-retardant sound-absorbing coating.
The application method of the inorganic waterproof flame-retardant sound-absorbing paint provided by the invention comprises the following steps:
the inorganic waterproof flame-retardant sound-absorbing coating prepared by the steps is suitable for cement-based wall surfaces such as concrete, cement mortar and putty, is firstly stirred for 3-5 minutes at 400 rpm by using a handheld electric stirrer until uniform foam is generated, is then sprayed by using a real stone paint spraying gun with the caliber of 8-12 mm, and is similar to the real stone paint spraying, and the construction thickness of the sound-absorbing coating reaches 2.0cm by spraying twice.
Comparative examples 1 to 3 are compared with examples 1 to 3.
Comparative example 1 a commercially available acrylic emulsion was used, and an emulsion film forming aid was added as a binder to replace the inorganic binder-stabilized silica sol and stabilized potassium silicate of the present invention, and the other components were the same as in example 1; comparative example 2 commercial hydroxyethyl cellulose ether was used instead of cationic starch ether in the present invention, the other components being the same as in example 2; comparative example 3 does not use zirconium silicone, but uses clear water instead, and the other components are the same as in example 3.
Comparative example 1
Step one, preparing a ceramic fiber cotton dispersion liquid.
In a pre-dispersing cylinder, adjusting the rotating speed to 800 revolutions per minute, sequentially adding 0.6Kg of dispersing agent and 0.4Kg of wetting agent into 12Kg of water, fully stirring for 5 minutes, adjusting the rotating speed to 400 revolutions per minute, slowly adding 8Kg of ceramic fiber loose cotton, stirring for 20-25 minutes to fully disperse the ceramic fiber loose cotton from flocculent, and then standing until soaking for 24 hours to fully soften the ceramic fiber.
And step two, preparing sound absorbing material slurry.
In a production cylinder, adding 0.5Kg of dispersing agent, 0.8Kg of bentonite and 0.6Kg of cationic starch ether into 10Kg of water in sequence, stirring for 10-15 minutes at a rotation speed of 800 revolutions per minute, then adding 8Kg of titanium dioxide powder, 10Kg of mica powder, 6Kg of silicon dioxide aerogel, 6Kg of expanded perlite micro powder, 6Kg of inorganic flame retardant, 0.5Kg of silicon-based synergistic flame retardant and 2Kg of silicone zirconium in sequence in a stirring state, increasing the stirring speed to 1500 revolutions per minute after the addition, dispersing for 30 minutes at a high speed, reducing the rotation speed to 800 revolutions per minute after the dispersion, adding 25.1Kg of commercial acrylic emulsion and 1.9Kg of Hua Changzhi classical C-12 film forming auxiliary agent in a stirring state, and stirring for 5-10 minutes after the addition to obtain the sound absorbing material slurry.
And step three, preparing the sound-absorbing paint.
And (3) regulating the rotating speed to 800 revolutions per minute in the sound absorbing material slurry prepared in the production cylinder, adding 0Kg of the ceramic fiber dispersed cotton dispersion liquid and the color paste prepared in the step one into the sound absorbing material slurry in a stirring state, stirring for 10-15 minutes to a uniform color state, then sequentially adding 0.5Kg of the foaming agent and 0.3Kg of the foam stabilizer, and stirring for 5-10 minutes to generate uniform foam to obtain the sound absorbing coating.
The sound-absorbing paint prepared by the steps is stirred for 3-5 minutes at 400 rpm by a hand-held electric stirrer until uniform foam is generated before use, then is sprayed by a real stone paint spraying gun with the caliber of 8-12 mm, and the construction method is similar to real stone paint spraying, and the construction thickness of the sound-absorbing paint reaches 2.0cm after twice spraying.
Comparative example 2
Step one, preparing a ceramic fiber cotton dispersion liquid.
In a pre-dispersing cylinder, adjusting the rotating speed to 800 revolutions per minute, sequentially adding 0.5Kg of dispersing agent and 0.3Kg of wetting agent into 14Kg of water, fully stirring for 5 minutes, adjusting the rotating speed to 400 revolutions per minute, slowly adding 9Kg of ceramic fiber loose cotton, stirring for 20-25 minutes to fully disperse the ceramic fiber loose cotton from flocculent, and then standing until soaking for 24 hours to fully soften the ceramic fiber.
And step two, preparing sound absorbing material slurry.
In a production cylinder, adding 0.4Kg of dispersing agent, 0.9Kg of bentonite and 0.7Kg of hydroxyethyl cellulose ether into 12Kg of water in sequence, stirring for 10-15 minutes at a rotation speed of 800 revolutions per minute, then adding 17Kg of stabilized silica sol and 6Kg of stabilized potassium silicate in a stirring state, stirring for 10-15 minutes until the mixture is fully and uniformly dispersed, then adding 9Kg of titanium dioxide, 8Kg of mica powder, 5Kg of silica aerogel, 5Kg of expanded perlite micropowder, 7Kg of inorganic flame retardant, 0.6Kg of silicon-based synergistic flame retardant and 3Kg of silicone zirconium in sequence, increasing the stirring speed to 1500 revolutions per minute after the addition, dispersing for 30 minutes at a high speed, reducing the rotation speed to 800 revolutions per minute after the dispersion, adding 0.3Kg of preservative and 0.7Kg of mildew inhibitor in a stirring state, and stirring for 5-10 minutes after the addition to obtain sound absorbing material slurry.
And step three, preparing the sound-absorbing paint.
And (3) regulating the rotating speed to 800 revolutions per minute in the sound absorbing material slurry prepared in the production cylinder, adding 0Kg of the ceramic fiber dispersed cotton dispersion liquid and the color paste prepared in the step one into the sound absorbing material slurry in a stirring state, stirring for 10-15 minutes to a uniform color state, then sequentially adding 0.4Kg of the foaming agent and 0.2Kg of the foam stabilizer, and stirring for 5-10 minutes to generate uniform foam to obtain the sound absorbing coating.
The sound-absorbing paint prepared by the steps is stirred for 3-5 minutes at 400 rpm by a hand-held electric stirrer until uniform foam is generated before use, then is sprayed by a real stone paint spraying gun with the caliber of 8-12 mm, and the construction method is similar to real stone paint spraying, and the construction thickness of the sound-absorbing paint reaches 2.0cm after twice spraying.
Comparative example 3
Step one, preparing a ceramic fiber cotton dispersion liquid.
In a pre-dispersing cylinder, adjusting the rotating speed to 800 revolutions per minute, sequentially adding 0.4Kg of dispersing agent and 0.2Kg of wetting agent into 16Kg of water, fully stirring for 5 minutes, adjusting the rotating speed to 400 revolutions per minute, slowly adding 10Kg of ceramic fiber loose cotton, stirring for 20-25 minutes to fully disperse the ceramic fiber loose cotton from flocculent, and then standing until soaking for 24 hours to fully soften the ceramic fiber.
And step two, preparing sound absorbing material slurry.
In a production cylinder, adding 0.3Kg of dispersing agent, 1.0Kg of bentonite and 0.8Kg of cationic starch ether into 18Kg of water in sequence, stirring for 10-15 minutes at a rotation speed of 800 revolutions per minute, then adding 15Kg of stabilized silica sol and 5Kg of stabilized potassium silicate in a stirring state, stirring for 10-15 minutes until the mixture is fully and uniformly dispersed, then adding 10Kg of titanium dioxide, 5Kg of mica powder, 4Kg of silica aerogel, 4Kg of expanded perlite micropowder, 8Kg of inorganic flame retardant and 0.7Kg of silicon-based synergistic flame retardant in sequence, increasing the stirring speed to 1500 revolutions per minute after the addition, dispersing for 30 minutes at a high speed, reducing the rotation speed to 800 revolutions per minute after the dispersion, and adding 0.4Kg of preservative and 0.8Kg of mildew inhibitor in a stirring state, and stirring for 5-10 minutes after the addition to obtain the sound absorbing material slurry.
And step three, preparing the sound-absorbing paint.
And (3) regulating the rotating speed to 800 revolutions per minute in the sound absorbing material slurry prepared in the production cylinder, adding 0Kg of the ceramic fiber dispersed cotton dispersion liquid and the color paste prepared in the step one into the sound absorbing material slurry in a stirring state, stirring for 10-15 minutes to a uniform color state, then sequentially adding 0.3Kg of the foaming agent and 0.1Kg of the foam stabilizer, and stirring for 5-10 minutes to generate uniform foam to obtain the sound absorbing coating.
The sound-absorbing paint prepared by the steps is stirred for 3-5 minutes at 400 rpm by a hand-held electric stirrer until uniform foam is generated before use, then is sprayed by a real stone paint spraying gun with the caliber of 8-12 mm, and the construction method is similar to real stone paint spraying, and the construction thickness of the sound-absorbing paint reaches 2.0cm after twice spraying.
The coatings obtained in examples 1 to 3 and comparative examples 1 to 3 were subjected to performance tests.
The combustion performance classification was evaluated according to the specification of the combustion performance of the flat plate-shaped building material and the A1 grade of the product in GB 8624-2012 combustion performance classification of building materials and products.
According to GB/T20247-2006/ISO 354: the provision of 2003 acoustic reverberant Chamber Sound absorption measurement evaluates the noise reduction coefficient.
The VOC content was assessed as specified in the interior wall coating of GB 18582-2020 limit on the amount of harmful substances in wall coatings for construction.
Storage stability was assessed as specified in GB 6753.3-86 method for storage stability test of coatings.
The impermeability is evaluated according to the specification of the impermeability of concrete in GB 1845-2012 Cement-based permeable crystalline waterproof paint.
The smoke production toxicity classification is evaluated according to the specification of AQ1 safety level in GB/T20285-2006.
The bond strength was assessed as specified in GB/T26746 mineral wool spray insulation.
The sound absorption performance of the building sound absorption product is rated according to the specification of a sound absorption performance rating table in the table 1 of GB/T16731-1997 sound absorption performance rating of the building sound absorption product.
The results of the performance tests of examples 1 to 3 and comparative examples 1 to 3 are shown in Table II:
watch II
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As can be seen from the table two, compared with the comparative example 1, the embodiments 1 to 3 of the invention adopt inorganic adhesive stabilized potassium silicate and stabilized silica sol instead of petrochemical product high molecular polymer emulsion as the adhesive, so that the combustion performance of the inorganic waterproof flame-retardant sound-absorbing coating is improved from B1 flame-retardant level to A1 flame-retardant level (highest flame-retardant level), the combustion performance of the inorganic waterproof flame-retardant sound-absorbing coating is improved, and the fire-fighting acceptance requirement with high requirements is easily met; the smoke toxicity is improved from ZA3 (quasi-safety level minimum) to AQ1 (safety level maximum), so that the smoke toxicity safety performance of the inorganic waterproof flame-retardant sound-absorbing coating is improved, a large amount of toxic smoke is effectively prevented from being generated when a fire disaster occurs, and the life safety of people is ensured; the VOC content is increased from 120g/L to the VOC release amount tends to 0, so that the living environment is more environment-friendly and healthy; the sound absorption performance is improved from level II to level I, and the inorganic adhesive is in a porous structure after being dried and fixed, so that the noise is favorably eliminated, while the traditional high-molecular polymer emulsion adhesive is in a film-forming compact structure after being dried and fixed, so that the pores of the inorganic waterproof flame-retardant sound-absorbing coating are blocked, and the noise is not favorably eliminated. Moreover, comparative example 1 using an acrylic emulsion was inferior to example 1 in all other properties.
Compared with comparative example 2, the inorganic waterproof flame-retardant sound-absorbing paint 1) has excellent storage stability, is free from skinning and condensation phenomena, and the comparative example 2 does not use cationic starch ether, but adopts carboxyethyl cellulose ether, so that the skinning and condensation phenomena cause the inorganic waterproof flame-retardant sound-absorbing paint to be unusable and lose the workability. The quaternary ammonium salt cationic starch ether introduced by the invention effectively exchanges ions with silicate anions with different polymerization degrees and silica sol surface balance monovalent cations to replace the original monovalent cations, and the silicate anions are adsorbed on the silicate anions through charge attraction to prevent the silicate anions in the inorganic binder from reacting with high-valence metal ions such as Zr4+, al3+, mg2+ and the like or self-polymerizing reaction which are introduced by the subsequent added materials, thereby preventing the inorganic binder from being solidified and effectively improving the storage stability of the sound-absorbing coating. 2) Meanwhile, the bonding strength of the inorganic waterproof flame-retardant sound-absorbing coating is improved from 5 times of the original thick weight to 12-15 times of the original thick weight, so that the bonding performance of the inorganic waterproof flame-retardant sound-absorbing coating is greatly improved, and the inorganic waterproof flame-retardant sound-absorbing coating has high yield value, excellent viscosity stability and sagging resistance due to the special reticular structure of the quaternary ammonium salt cationic starch ether, so that the inorganic waterproof flame-retardant sound-absorbing coating can be applied in thick coating construction, and sagging phenomenon is avoided when the inorganic waterproof flame-retardant sound-absorbing coating is sprayed for 0.5 cm-1.0 cm at one time, and the construction performance of the sound-absorbing coating is greatly improved.
According to the invention, compared with comparative example 3, the concrete impermeability and the coated impermeability pressure ratio are both greater than 250%, the removed coating impermeability pressure ratio is both greater than 175%, the second impermeability pressure (56 d) of the coated concrete is both greater than 0.8MPa, and meets the standard requirements, while the comparative example 3 has the coated impermeability pressure ratio less than 250%, the removed coating impermeability pressure ratio is both less than 175%, and the second impermeability pressure (56 d) of the coated concrete is less than 0.8, and does not meet the standard requirements, so that the introduced silicone zirconium effectively blocks capillary pore channels of a concrete base layer, thereby enabling the base layer to be compact, preventing water leakage, and greatly improving the waterproof impermeability of the inorganic waterproof flame-retardant sound-absorbing coating.
The applicant states that the above embodiments are merely preferred embodiments of the present invention, and are not intended to limit the present invention, and those skilled in the art may make various modifications and variations using the present invention, and any modification, equivalent replacement, improvement, etc. without departing from the scope of the present invention are included in the scope of the present invention.
Claims (4)
1. An inorganic waterproof flame-retardant sound-absorbing coating is characterized by being prepared from the following components in parts by weight: 22 to 30 parts of water, 0.7 to 1.1 parts of dispersing agent and wetting agent: 0.2 to 0.4 part of ceramic fiber bulk cotton 8 to 10 parts of bentonite 0.8 to 1.0 part of cationic starch ether 0.6 to 0.8 part of stabilized silica sol 15 to 20 parts of stabilized potassium silicate 5 to 7 parts of titanium dioxide 8 to 10 parts of mica powder 5 to 10 parts of silica aerogel 4 to 6 parts of expanded perlite micro powder 4 to 6 parts of nano aluminum hydroxide inorganic flame retardant 6 to 8 parts of silicon-based synergistic flame retardant 0.5 to 0.7 part of silicone zirconium 2 to 4 parts of preservative 0.2 to 0.4 part of mildew preventive 0.6 to 0.8 part of foaming agent 0.3 to 0.5 part of foam stabilizer 0.1 to 0.3 part of color paste; the total amount is 100 parts;
the cationic starch is quaternary ammonium salt cationic starch;
the preparation method of the inorganic waterproof flame-retardant sound-absorbing coating comprises the following steps:
step one, preparing a ceramic fiber loose cotton dispersion liquid:
in a pre-dispersing cylinder, adjusting the rotating speed to 800 revolutions per minute, sequentially adding 0.4-0.6 part of dispersing agent and 0.2-0.4 part of wetting agent into 12-16 parts of water according to the weight ratio, fully stirring for 5 minutes, adjusting the rotating speed to 400 revolutions per minute, slowly adding 8-10 parts of ceramic fiber scattered cotton, stirring for 20-25 minutes to fully disperse the ceramic fiber scattered cotton from flocculent, and standing and soaking for 24 hours to fully soften the ceramic fiber;
step two, preparing inorganic waterproof flame-retardant sound-absorbing material slurry:
adding 0.3-0.5 part of dispersing agent, 0.8-1.0 part of bentonite and 0.6-0.8 part of cationic starch ether into 10-14 parts of water in a weight ratio in a production cylinder, stirring for 10-15 minutes at a rotating speed of 800 revolutions per minute, adding 15-20 parts of stabilized silica sol and 5-7 parts of stabilized potassium silicate in a stirring state, and stirring for 10-15 minutes until the components are fully and uniformly dispersed; then adding 8-10 parts of titanium dioxide, 5-10 parts of mica powder, 4-6 parts of silicon dioxide aerogel, 4-6 parts of expanded perlite micropowder, 6-8 parts of inorganic flame retardant, 0.5-0.7 part of silicon-based synergistic flame retardant and 2-4 parts of silicone zirconium in sequence, and after the adding, raising the stirring speed to 1500 rpm and dispersing at a high speed for 30 minutes; reducing the rotating speed to 800 rpm after dispersing, adding 0.2-0.4 part of preservative and 0.6-0.8 part of mildew inhibitor in a stirring state, and stirring for 5-10 minutes after adding to obtain inorganic waterproof flame-retardant sound-absorbing material slurry;
step three, preparing inorganic waterproof flame-retardant sound-absorbing paint:
and (3) regulating the rotating speed to 800 revolutions per minute in the inorganic waterproof flame-retardant sound-absorbing material slurry prepared in the production cylinder, adding 0-0.5 part of the ceramic fiber dispersion liquid prepared in the step one and the color paste into the slurry in a stirring state, stirring for 10-15 minutes until the color is uniform, preparing the slurry into a target color according to a CBCC Chinese building color card, sequentially adding 0.3-0.5 part of a foaming agent and 0.1-0.3 part of a foam stabilizer, and stirring for 5-10 minutes until uniform foam is generated, thus obtaining the inorganic waterproof flame-retardant sound-absorbing coating.
2. The inorganic waterproof flame-retardant sound-absorbing coating of claim 1, wherein the dispersant is a polycarboxylate sodium salt dispersant; the wetting agent is alkyl polyoxyethylene ether wetting agent; the bentonite is sodium bentonite; the foaming agent is tea saponin.
3. The inorganic waterproof flame-retardant sound-absorbing coating of claim 1, wherein the ceramic fiber bulk cotton has a porosity of greater than 90%; the expanded perlite micropowder is in powder form with the particle size of 0.015-0.075 mm, the molecular structure of the expanded perlite micropowder is honeycomb-shaped, and the particle stacking polymer has the porosity of 80-90%.
4. The method for using the inorganic waterproof flame-retardant sound-absorbing coating material according to claim 1, which is applicable to cement-based wall surfaces including but not limited to concrete or cement mortar or putty, wherein the inorganic waterproof flame-retardant sound-absorbing coating material is firstly stirred for 3-5 minutes at 400 rpm by a hand-held electric stirrer to generate uniform foam before being used, and then is sprayed by a real stone paint spraying gun with the caliber of 8-12 mm; the total coating thickness of the sound-absorbing paint is more than 0.5cm, the primary spraying thickness can reach 0.5-1.0 cm, the consumption per 0.5cm thickness is 5 kg/square meter, and the secondary construction time interval of the wall body and the ceiling is more than 24 hours.
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