CN116285672A - Mineral water-based intumescent fireproof coating and preparation method thereof - Google Patents
Mineral water-based intumescent fireproof coating and preparation method thereof Download PDFInfo
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- CN116285672A CN116285672A CN202310246646.7A CN202310246646A CN116285672A CN 116285672 A CN116285672 A CN 116285672A CN 202310246646 A CN202310246646 A CN 202310246646A CN 116285672 A CN116285672 A CN 116285672A
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- parts
- agent
- stirring
- coal gangue
- geopolymer
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 72
- 238000000576 coating method Methods 0.000 title claims abstract description 65
- 239000011248 coating agent Substances 0.000 title claims abstract description 64
- 229910052500 inorganic mineral Inorganic materials 0.000 title claims abstract description 27
- 239000011707 mineral Substances 0.000 title claims abstract description 27
- 238000002360 preparation method Methods 0.000 title claims abstract description 20
- 239000003245 coal Substances 0.000 claims abstract description 59
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 57
- 229920000876 geopolymer Polymers 0.000 claims abstract description 57
- 239000000839 emulsion Substances 0.000 claims abstract description 53
- 239000008367 deionised water Substances 0.000 claims abstract description 35
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 35
- 239000010439 graphite Substances 0.000 claims abstract description 33
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 33
- 239000003063 flame retardant Substances 0.000 claims abstract description 28
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 23
- 239000012188 paraffin wax Substances 0.000 claims abstract description 21
- 239000002270 dispersing agent Substances 0.000 claims abstract description 15
- 239000000463 material Substances 0.000 claims abstract description 11
- 239000012764 mineral filler Substances 0.000 claims abstract description 10
- 229920005989 resin Polymers 0.000 claims abstract description 9
- 239000011347 resin Substances 0.000 claims abstract description 9
- 230000018044 dehydration Effects 0.000 claims abstract description 8
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 8
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 7
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 7
- 239000003054 catalyst Substances 0.000 claims abstract description 7
- 239000004088 foaming agent Substances 0.000 claims abstract description 7
- 239000002562 thickening agent Substances 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims abstract description 3
- 238000003756 stirring Methods 0.000 claims description 72
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 54
- 239000006185 dispersion Substances 0.000 claims description 45
- 238000000498 ball milling Methods 0.000 claims description 42
- -1 polydimethylsiloxane Polymers 0.000 claims description 31
- 239000002002 slurry Substances 0.000 claims description 29
- 239000004114 Ammonium polyphosphate Substances 0.000 claims description 28
- 229920000877 Melamine resin Polymers 0.000 claims description 28
- 235000019826 ammonium polyphosphate Nutrition 0.000 claims description 28
- 229920001276 ammonium polyphosphate Polymers 0.000 claims description 28
- 238000007873 sieving Methods 0.000 claims description 28
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical group NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 claims description 27
- 239000000843 powder Substances 0.000 claims description 27
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 24
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 claims description 21
- 239000010881 fly ash Substances 0.000 claims description 18
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 18
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 16
- 235000019353 potassium silicate Nutrition 0.000 claims description 16
- STCOOQWBFONSKY-UHFFFAOYSA-N tributyl phosphate Chemical compound CCCCOP(=O)(OCCCC)OCCCC STCOOQWBFONSKY-UHFFFAOYSA-N 0.000 claims description 16
- 239000000440 bentonite Substances 0.000 claims description 15
- 229910000278 bentonite Inorganic materials 0.000 claims description 15
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 15
- 239000000378 calcium silicate Substances 0.000 claims description 14
- 229910052918 calcium silicate Inorganic materials 0.000 claims description 14
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 claims description 14
- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical compound [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 claims description 12
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 12
- 238000000227 grinding Methods 0.000 claims description 12
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 claims description 12
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 11
- 229920001296 polysiloxane Polymers 0.000 claims description 11
- 235000019982 sodium hexametaphosphate Nutrition 0.000 claims description 10
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 9
- 238000002156 mixing Methods 0.000 claims description 9
- 229920001921 poly-methyl-phenyl-siloxane Polymers 0.000 claims description 9
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 claims description 9
- 239000001038 titanium pigment Substances 0.000 claims description 9
- YEVQZPWSVWZAOB-UHFFFAOYSA-N 2-(bromomethyl)-1-iodo-4-(trifluoromethyl)benzene Chemical compound FC(F)(F)C1=CC=C(I)C(CBr)=C1 YEVQZPWSVWZAOB-UHFFFAOYSA-N 0.000 claims description 8
- TXBCBTDQIULDIA-UHFFFAOYSA-N 2-[[3-hydroxy-2,2-bis(hydroxymethyl)propoxy]methyl]-2-(hydroxymethyl)propane-1,3-diol Chemical compound OCC(CO)(CO)COCC(CO)(CO)CO TXBCBTDQIULDIA-UHFFFAOYSA-N 0.000 claims description 8
- 229920000142 Sodium polycarboxylate Polymers 0.000 claims description 8
- 239000004205 dimethyl polysiloxane Substances 0.000 claims description 8
- LQZZUXJYWNFBMV-UHFFFAOYSA-N ethyl butylhexanol Natural products CCCCCCCCCCCCO LQZZUXJYWNFBMV-UHFFFAOYSA-N 0.000 claims description 8
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims description 8
- 239000002994 raw material Substances 0.000 claims description 8
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 claims description 8
- 239000002956 ash Substances 0.000 claims description 7
- 239000000446 fuel Substances 0.000 claims description 7
- VILCJCGEZXAXTO-UHFFFAOYSA-N 2,2,2-tetramine Chemical compound NCCNCCNCCN VILCJCGEZXAXTO-UHFFFAOYSA-N 0.000 claims description 6
- PISLZQACAJMAIO-UHFFFAOYSA-N 2,4-diethyl-6-methylbenzene-1,3-diamine Chemical compound CCC1=CC(C)=C(N)C(CC)=C1N PISLZQACAJMAIO-UHFFFAOYSA-N 0.000 claims description 6
- RPNUMPOLZDHAAY-UHFFFAOYSA-N Diethylenetriamine Chemical compound NCCNCCN RPNUMPOLZDHAAY-UHFFFAOYSA-N 0.000 claims description 6
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 6
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 6
- 125000005375 organosiloxane group Chemical group 0.000 claims description 6
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 claims description 6
- 229920000728 polyester Polymers 0.000 claims description 6
- 229920000570 polyether Polymers 0.000 claims description 6
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 claims description 6
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 4
- GDVKFRBCXAPAQJ-UHFFFAOYSA-A dialuminum;hexamagnesium;carbonate;hexadecahydroxide Chemical compound [OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Al+3].[Al+3].[O-]C([O-])=O GDVKFRBCXAPAQJ-UHFFFAOYSA-A 0.000 claims description 4
- 239000003822 epoxy resin Substances 0.000 claims description 4
- 229910001701 hydrotalcite Inorganic materials 0.000 claims description 4
- 229960001545 hydrotalcite Drugs 0.000 claims description 4
- 229910052744 lithium Inorganic materials 0.000 claims description 4
- 229920000647 polyepoxide Polymers 0.000 claims description 4
- 229920002635 polyurethane Polymers 0.000 claims description 4
- 239000004814 polyurethane Substances 0.000 claims description 4
- 229920002689 polyvinyl acetate Polymers 0.000 claims description 4
- 239000011118 polyvinyl acetate Substances 0.000 claims description 4
- 239000004925 Acrylic resin Substances 0.000 claims description 2
- 229920000178 Acrylic resin Polymers 0.000 claims description 2
- 150000001412 amines Chemical class 0.000 claims description 2
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 2
- 239000000292 calcium oxide Substances 0.000 claims description 2
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 2
- 239000010883 coal ash Substances 0.000 claims description 2
- 238000001816 cooling Methods 0.000 claims description 2
- 239000013530 defoamer Substances 0.000 claims description 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims 1
- 229910052710 silicon Inorganic materials 0.000 claims 1
- 239000010703 silicon Substances 0.000 claims 1
- 229910052799 carbon Inorganic materials 0.000 abstract description 23
- 229920000642 polymer Polymers 0.000 abstract description 8
- CQBLUJRVOKGWCF-UHFFFAOYSA-N [O].[AlH3] Chemical compound [O].[AlH3] CQBLUJRVOKGWCF-UHFFFAOYSA-N 0.000 abstract description 4
- OBNDGIHQAIXEAO-UHFFFAOYSA-N [O].[Si] Chemical compound [O].[Si] OBNDGIHQAIXEAO-UHFFFAOYSA-N 0.000 abstract description 4
- 238000004064 recycling Methods 0.000 abstract description 3
- 239000002910 solid waste Substances 0.000 abstract description 3
- 239000003513 alkali Substances 0.000 abstract description 2
- 230000005284 excitation Effects 0.000 abstract description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 28
- 239000003973 paint Substances 0.000 description 22
- 229910000831 Steel Inorganic materials 0.000 description 18
- 239000010959 steel Substances 0.000 description 18
- 239000004408 titanium dioxide Substances 0.000 description 14
- 239000004593 Epoxy Substances 0.000 description 12
- 230000000052 comparative effect Effects 0.000 description 10
- 239000011259 mixed solution Substances 0.000 description 10
- 239000011268 mixed slurry Substances 0.000 description 9
- 239000002609 medium Substances 0.000 description 8
- 238000007789 sealing Methods 0.000 description 8
- 238000002485 combustion reaction Methods 0.000 description 7
- 239000007789 gas Substances 0.000 description 6
- 229920003023 plastic Polymers 0.000 description 5
- 239000004033 plastic Substances 0.000 description 5
- 238000001878 scanning electron micrograph Methods 0.000 description 5
- 229960001124 trientine Drugs 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- 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 description 3
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 3
- 239000004115 Sodium Silicate Substances 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 229910052911 sodium silicate Inorganic materials 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000005979 thermal decomposition reaction Methods 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- QANIADJLTJYOFI-UHFFFAOYSA-K aluminum;magnesium;carbonate;hydroxide;hydrate Chemical compound O.[OH-].[Mg+2].[Al+3].[O-]C([O-])=O QANIADJLTJYOFI-UHFFFAOYSA-K 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 239000007857 degradation product Substances 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- 239000002612 dispersion medium Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005886 esterification reaction Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 229920005646 polycarboxylate Polymers 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 239000000052 vinegar Substances 0.000 description 1
- 235000021419 vinegar Nutrition 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Images
Classifications
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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
- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/04—Polysiloxanes
- C09D183/06—Polysiloxanes containing silicon bound to oxygen-containing groups
-
- 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
-
- 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
- C09D133/00—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 only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
-
- 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
- C09D133/00—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 only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/04—Homopolymers or copolymers of esters
-
- 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
- C09D143/00—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 containing boron, silicon, phosphorus, selenium, tellurium, or a metal; Coating compositions based on derivatives of such polymers
- C09D143/04—Homopolymers or copolymers of monomers containing silicon
-
- 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
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
-
- 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
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
-
- 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
- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/04—Polysiloxanes
-
- 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
- C09D5/185—Intumescent paints
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Paints Or Removers (AREA)
- Fireproofing Substances (AREA)
Abstract
The invention discloses a mineral water-based intumescent fire-retardant coating and a preparation method thereof, wherein the coating comprises the following components in parts by weight: 5-75 parts of deionized water, 20-9 parts of resin emulsion, 10-80 parts of a dehydration catalyst, 5-75 parts of a char forming agent, 10-80 parts of a foaming agent, 1-50 parts of a mineral filler, 1-30 parts of expandable graphite, 1-30 parts of chlorinated paraffin, 1-30 parts of a curing agent, 0.1-30 parts of a dispersing agent, 0-30 parts of a thickening agent, 0.1-30 parts of a leveling agent, 0.1-30 parts of a film forming auxiliary agent and 0.2-30 parts of a defoaming agent. The coal gangue geopolymer used in the invention is an inorganic high polymer cementing material formed by alkali excitation, and has a three-dimensional network structure formed by taking silicon oxygen tetrahedron and aluminum oxygen tetrahedron as skeletons, so that the fireproof performance of the coating is improved, and the strength of a carbon layer is also improved; and the coal gangue is changed into valuable materials for scientific resource utilization, so that the method is a new means for recycling the solid waste in the environment-friendly industry.
Description
Technical Field
The invention relates to a mineral water-based intumescent fire-retardant coating and a preparation method thereof, belonging to the technical field of building fire-retardant coatings.
Background
In recent years, the market demand of the domestic paint is gradually increased, the development of the paint industry is rapid, but the solvent type fireproof paint is still mainly used in the domestic market, the yield of the water-based expansion type fireproof paint is low, the quality is uneven, the fireproof effect of the water-based expansion type fireproof paint is only 30-40% of that of the solvent type fireproof paint, and the problems of poor fireproof performance, poor adhesive force, unsatisfactory structural strength of an expansion carbon layer and the like are generally existed. Chinese patent CN202010795467.5 reports a solvent-borne ultrathin intumescent steel structure fireproof coating and a preparation method thereof, wherein an oily diluent is used as a dispersion medium, and the VOC value of the solvent-borne intumescent steel structure fireproof coating is 300-500 g/L. Chinese patent CN202110363809.0 reports a preparation method of a water-based intumescent fire-retardant coating for an indoor steel structure, solves the problems of poor adhesive force and difficult flame retardance of the traditional fire-retardant coating, and the melamine formaldehyde resin coated ammonium polyphosphate in the material contains formaldehyde components, so that the VOC value of the fire-retardant coating is generally less than or equal to 120 g/L, and the fire-retardant coating has certain harm to the environment and human bodies and does not accord with the environment protection concept. Chinese patent CN201510918471.5 reports that the water-based expansion type steel structure fireproof paint prepared by the invention overcomes the defects of poor density of an expansion carbon layer and easiness in falling under the impact of flame and gas, but has poor fireproof performance and fireproof limit of about 1 h.
In conclusion, the expansion type fireproof paint prepared at present has the problems of certain environmental hazard and poor fireproof performance.
Disclosure of Invention
In order to overcome the defects, the invention provides the preparation method of the mineral water-based intumescent fireproof coating, which has good fireproof performance and high expansion rate, and meanwhile, the structural strength of the carbon layer is enhanced, so that the collapse phenomenon of the carbon layer in the combustion process can be effectively prevented, the fireproof time can be effectively prolonged, the fireproof time is more than or equal to 2 h, and the VOC value is less than or equal to 50 g/L.
The mechanism of the invention: the coal gangue Geopolymer (GP) has a three-dimensional network structure formed by taking silicon oxygen tetrahedra and aluminum oxygen tetrahedra as skeletons, the structure is combined in a covalent bond mode, the strength between covalent bonds is high, the energy is high, the structure is not easy to damage when being fully combusted at 1200 ℃, the structure is not oxidized and decomposed, air and heat transfer can be isolated, and excellent fire resistance is shown.
According to the fireproof coating prepared by taking the coal gangue geopolymer as a raw material, in the initial stage of a fireproof experiment, residual moisture in the coating is decomposed, and the coal gangue geopolymer is used as a barrier in the coating, so that the diffusion path of oxygen and heat into the coating is prolonged, and the decomposition time of the coating is prolonged; firstly, gradually decomposing a coating system along with a high-temperature environment, softening a film forming substance into a molten state, secondly, thermally decomposing ammonium polyphosphate to generate free acid and carrying out dehydration esterification reaction on pentaerythritol, and thermally decomposing melamine to generate NH 3 、CO 2 、H 2 The nonflammable gas such as O and the like foams and expands the mixture of the film forming substance in a molten state and the viscous carbon layer while diluting the combustible gas, so that the carbon layer is expanded to be tens times or even twenty times of the original carbon layer, and the flame retardant effect is improved; as shown in the SEM image of case 1 in fig. 2, the coal gangue geopolymer with the three-dimensional network structure is uniformly dispersed on the surface of the carbon layer, so that the carbon residue after the combustion of the coating is increased, the integrity of the carbon layer at high temperature is maintained, the heat transfer to the inside of the coating is effectively delayed, the diffusion of thermal degradation products to the outside is prevented, the unburned carbon layer at the bottom layer is effectively protected, the heat shielding performance and oxidation resistance of the carbon layer are improved, and the thermal decomposition of the fireproof coating is effectively inhibited.
The invention provides a mineral water-based intumescent fire-retardant coating, which comprises the following raw materials in parts by weight: 5-75 parts of deionized water, 20-9 parts of resin emulsion, 10-80 parts of a dehydration catalyst, 5-75 parts of a char forming agent, 10-80 parts of a foaming agent, 1-50 parts of a mineral filler, 1-30 parts of expandable graphite, 1-30 parts of chlorinated paraffin, 1-30 parts of a curing agent, 0.1-30 parts of a dispersing agent, 0-30 parts of a thickening agent, 0.1-30 parts of a leveling agent, 0.1-30 parts of a film forming auxiliary agent and 0.2-30 parts of a defoaming agent.
Further, the mineral filler is mainly made of coal gangue or coal gangue geopolymer, and one or more of titanium pigment, hydrotalcite, bentonite, fly ash and fly ash geopolymer are added into the mineral filler, wherein the weight ratio of the coal gangue or the coal gangue geopolymer to the mineral filler is 1-50%.
The preparation method of the coal gangue geopolymer comprises the following steps:
(1) Grinding the coal gangue raw material calcined at 500-1500 ℃ for 0.5-1.5 h by using a ball mill, performing ball milling dispersion, and sieving by using a 200-mesh standard sieve;
(2) Mixing and stirring sodium hydroxide, water glass and deionized water for 5-25 min, after the mixture is cooled to room temperature, increasing the rotating speed to 200-800 r/min, slowly adding coal gangue powder, stirring for 10-60 min, adding calcium silicate, and continuously stirring for 3-30 min to obtain coal gangue geopolymer slurry;
(3) And (3) placing the coal gangue geopolymer slurry into a curing box, curing for 11-40 hours at the temperature of 30-90 ℃, taking out, ball-milling, dispersing and sieving with a 200-mesh standard sieve to obtain coal gangue geopolymer powder.
Preferably, the coal gangue geopolymer disclosed by the invention comprises the following components in parts by weight: 0.5-20 parts of sodium hydroxide, 0.5-20 parts of water glass, 0.5-20 parts of coal gangue with the calcined calcium oxide content of 1-30 wt%, 1-50 parts of calcium silicate and 1-50 parts of deionized water.
The preparation method of the coal ash geopolymer comprises the following steps:
(1) Grinding the fly ash raw material for 0.5-1.5 h by using a ball mill, performing ball milling dispersion, and sieving by using a 200-mesh standard sieve;
(2) Mixing and stirring sodium hydroxide, water glass and deionized water for 5-25 min, cooling to room temperature, increasing the rotating speed to 200-800 r/min, slowly adding fly ash powder, and stirring for 10-60 min to obtain the fly ash geopolymer slurry;
(3) And (3) placing the pulverized fuel ash geopolymer slurry into a curing box, curing for 11-40 hours at 30-90 ℃, taking out, ball-milling, dispersing and sieving with a 200-mesh standard sieve to obtain pulverized fuel ash geopolymer powder.
Preferably, the fly ash geopolymer disclosed by the invention comprises the following components in parts by weight: 0.5-20 parts of sodium hydroxide, 0.5-20 parts of water glass, 0.5-20 parts of fly ash and 1-50 parts of deionized water.
Further, the resin emulsion comprises one or more of aqueous epoxy resin emulsion, aqueous pure acrylic resin emulsion, aqueous acetic acid tertiary emulsion, aqueous silicone acrylic emulsion, aqueous organic silicone emulsion, aqueous polyurethane emulsion and polyvinyl acetate emulsion, and the resin emulsion is commercially available emulsion.
Further, the curing agent is epoxy resin general amine curing agent, and comprises one or more of diethyl toluene diamine, diethylenetriamine and triethylenetetramine.
Further, the dehydration catalyst is ammonium polyphosphate; the char forming agent is one of pentaerythritol and dipentaerythritol; the foaming agent is melamine.
Further, the expansion coefficient of the expandable graphite is 100, and the particle size of the expandable graphite is 5-20 mu m.
Further, the dispersing agent is one or more of sodium polycarboxylate high molecular dispersing agent (SN-5040), sodium polyacrylate (ASAP) and Sodium Hexametaphosphate (SHMP).
Further, the thickener is one or more of sodium carboxymethyl cellulose and lithium bentonite; the leveling agent is one or more of polydimethylsiloxane, polyether polyester modified organosiloxane and polymethylphenylsiloxane; the defoaming agent is one or more of polysiloxane, tributyl phosphate and trioctyl phosphate; the film forming auxiliary agent is one or more of glycol, glycerol and dodecanol ester;
the invention provides a preparation method of the mineral water-based intumescent fire-retardant coating, which comprises the following steps:
(1) Grinding the powder by a ball mill, performing ball milling dispersion, and sieving by a 200-mesh standard sieve;
(2) Adding a dispersing agent, 0.1-20 parts of a defoaming agent and a leveling agent into 1-50 parts of deionized water, and stirring for 5-15 min at 400-600 r/min to uniformly mix the components; sequentially adding mineral filler and expandable graphite, stirring for 5-15 min at a rotating speed of 1000-1200 r/min, adding a dehydration catalyst, a char forming agent, a foaming agent and chlorinated paraffin, and stirring for 50-80 min at a rotating speed of 2000-3000 r/min to prepare slurry;
(3) Slowly adding the resin emulsion and the film-forming auxiliary agent into the slurry, stirring for 5-15 min at 400-800 r/min, adding the curing agent and 0.1-10 parts of defoamer, and continuously stirring for 5-15 min to ensure that the dispersion is more uniform, thus preparing the fireproof coating.
(4) And adding deionized water or a thickener for a small amount for multiple times according to the viscosity of the water-based coating system, and adjusting the viscosity of the system to 15-30 s to obtain the mineral water-based intumescent fireproof coating.
The invention has the beneficial effects that:
(1) The coal gangue geopolymer used in the invention is an inorganic high polymer cementing material formed by alkali excitation, and has a three-dimensional network structure formed by taking silicon oxygen tetrahedron and aluminum oxygen tetrahedron as skeletons, so that the geopolymer is not oxidized and decomposed at 1000-1200 ℃, air and heat can be isolated, the fireproof performance of the coating is improved, and the strength of a carbon layer is also improved;
(2) The gangue or the gangue geopolymer used in the invention is prepared by taking the gangue as a raw material, and the gangue is solid waste generated in the coal mining and coal washing processes, so that the gangue is greatly harmful to land, geological disasters, ecological environment and human health, the gangue is changed into valuable materials, the gangue is scientifically utilized in a recycling way, and the method is a novel means for recycling solid waste in green environment-friendly industry for preparing the intumescent fire retardant coating.
Drawings
FIG. 1 is a graph showing the temperature rise of example 1 and comparative example;
FIG. 2 is an SEM image of a flame retardant coating of example 1;
fig. 3 is an SEM image of the fire-retardant coating combustion char layer of the comparative example.
Detailed Description
The present invention is further illustrated by, but not limited to, the following examples.
Example 1
13 parts of deionized water, 15 parts of aqueous epoxy silicone emulsion, 15 parts of aqueous organic silicone emulsion, 22 parts of ammonium polyphosphate, 6 parts of pentaerythritol, 12 parts of melamine, 6 parts of titanium dioxide, 4 parts of sodium silicate, 4 parts of sodium hydroxide, 4 parts of calcined coal gangue, 9 parts of calcium silicate, 4.5 parts of expandable graphite, 3 parts of chlorinated paraffin, 2.5 parts of diethylenetriamine, 0.7 part of sodium hexametaphosphate, 10 parts of sodium carboxymethyl cellulose, 1 part of polydimethylsiloxane, 6 parts of dodecanol ester and 5 parts of trioctyl phosphate.
The preparation method comprises the following steps:
(1) And grinding calcined gangue, ammonium polyphosphate, pentaerythritol, melamine, expandable graphite, titanium pigment and calcium silicate powder by using a ball mill to obtain 1-h, performing ball milling dispersion, and sieving by using a 200-mesh standard sieve.
(2) Mixing and stirring sodium hydroxide, water glass and 3 parts of deionized water in a plastic beaker for 10 min, pouring the mixed solution into a dispersion tank after the mixed solution is cooled to room temperature, increasing the rotating speed to 260 r/min, slowly adding coal gangue powder, stirring for 15 min, adding calcium silicate, and continuing stirring for 5 min to obtain the coal gangue geopolymer slurry.
(3) And (3) placing the coal gangue geopolymer slurry into a curing box, curing at 60 ℃ for 24 h, taking out, placing into a ball mill for ball milling for 1.5 h, performing ball milling dispersion, and sieving with a 200-mesh standard sieve to obtain coal gangue geopolymer powder.
(4) Adding 10 parts of ionized water, sodium hexametaphosphate, polydimethylsiloxane and 3 parts of trioctyl phosphate into a dispersion tank, and stirring for 10 min at the rotation speed of 500 r/min to uniformly mix the materials; sequentially and slowly adding the coal gangue geopolymer, the titanium dioxide and the expandable graphite, stirring for 15 min at the rotation speed of 1100 r/min, sequentially and slowly adding the ammonium polyphosphate, the pentaerythritol, the melamine and the chlorinated paraffin, stirring for 60 min at the high speed at the rotation speed of 3500 r/min, and preparing the mixed slurry.
(5) Slowly adding the aqueous organosilicon emulsion, the aqueous epoxy emulsion and the dodecanol ester into the mixed slurry, stirring for 10 min at a medium speed of 600 r/min, adding diethylenetriamine and 2 parts of trioctyl phosphate again, and continuously stirring for 10 min to ensure that the dispersion is more uniform, thus preparing the fireproof coating.
(6) And (3) pouring the prepared fireproof paint into a ball mill for ball milling for 3 h, performing ball milling dispersion, sieving by using a 200-mesh standard sieve, adjusting the viscosity of the system to 25 s by using 10 parts of sodium carboxymethyl cellulose, and sealing and storing in a container bottle to obtain the mineral water-based intumescent fireproof paint.
Fig. 2 shows an SEM image of a fire retardant coating burning carbon layer of the embodiment, and it can be seen from the image that the addition of the coal gangue geopolymer makes the surface structure of the carbon layer complete and compact, the holes are small, no visible cracks and gaps exist, heat and combustible gas can be effectively isolated from being transferred to a steel plate, the acting force between the generated carbon layers is large, the structural strength of the carbon layer is increased, the carbon layer is not easy to be blown away by gas, and the effect of protecting the steel structure for a long time can be achieved.
Example 2
18 parts of deionized water, 9 parts of titanium dioxide, 2 parts of calcined gangue, 2 parts of hydrotalcite, 16 parts of aqueous epoxy emulsion, 20 parts of aqueous pure acrylic emulsion, 26 parts of ammonium polyphosphate, 6 parts of pentaerythritol, 12 parts of melamine, 4.5 parts of expandable graphite, 6 parts of chlorinated paraffin, 3 parts of sodium hydroxide, 3 parts of sodium silicate, 7 parts of diethylenetriamine, 12 parts of sodium polycarboxylate high polymer dispersant, 19 parts of sodium carboxymethyl cellulose, 3 parts of polydimethylsiloxane, 3 parts of glycerol and 7 parts of tributyl phosphate.
The preparation method comprises the following steps:
(1) Grinding ammonium polyphosphate, pentaerythritol, melamine, expandable graphite, titanium pigment, calcined gangue and hydrotalcite powder by using a ball mill, performing ball milling dispersion, and sieving by using a 200-mesh standard sieve;
(2) Mixing and stirring sodium hydroxide, water glass and 4 parts of deionized water in a plastic beaker for 10 min, pouring the mixed solution into a dispersion tank after the mixed solution is cooled to room temperature, increasing the rotating speed to 255 r/min, slowly adding coal gangue powder, stirring for 15 min, adding calcium silicate, and continuing stirring for 5 min to obtain the coal gangue geopolymer slurry.
(3) And (3) placing the coal gangue geopolymer slurry into a curing box, curing at 60 ℃ for 24 h, taking out, placing into a ball mill for ball milling for 1.7 h, performing ball milling dispersion, and sieving with a 200-mesh standard sieve to obtain coal gangue geopolymer powder.
(4) Adding 14 parts of ionized water, a sodium polycarboxylate type high polymer dispersing agent, polydimethylsiloxane and 4 parts of tributyl phosphate into a dispersing tank, and stirring for 10 min at the rotation speed of 500 r/min to uniformly mix the materials; sequentially and slowly adding titanium dioxide, coal gangue geopolymer, hydrotalcite and expandable graphite, stirring at 1150 r/min for 16 min, sequentially and slowly adding ammonium polyphosphate, pentaerythritol, melamine and chlorinated paraffin, and stirring at 2400 r/min for 60 min at high speed to obtain slurry.
(5) Slowly adding the aqueous epoxy emulsion, the aqueous pure acrylic emulsion and the glycerol into the mixed slurry, stirring for 10 min at a medium speed of 600 r/min, then adding the diethylenetriamine and 3 parts of tributyl phosphate again, and continuously stirring for 10 min to ensure that the dispersion is more uniform, thus preparing the fireproof coating.
(6) The prepared fireproof paint is poured into a ball mill for ball milling for 2.6 and h, ball milling and dispersion are carried out, and a 200-mesh standard sieve is used for sieving. The viscosity of the system is regulated to 24 s by 19 parts of sodium carboxymethyl cellulose, and then the system is stored in a container bottle in a sealing way, thus obtaining the mineral water-based intumescent fire-retardant coating.
Example 3
25 parts of deionized water, 12 parts of titanium dioxide, 3 parts of bentonite, 3 parts of calcined coal gangue, 19 parts of aqueous epoxy emulsion, 19 parts of aqueous vinegar tertiary emulsion, 20 parts of ammonium polyphosphate, 6 parts of pentaerythritol, 12 parts of melamine, 6 parts of expandable graphite, 7 parts of chlorinated paraffin, 6 parts of diethyltoluenediamine, 9 parts of sodium hexametaphosphate, 2 parts of lithium bentonite, 4 parts of polymethylphenylsiloxane, 9 parts of ethylene glycol and 3 parts of trioctyl phosphate.
The preparation method comprises the following steps:
(1) Grinding ammonium polyphosphate, pentaerythritol, melamine, expanded graphite, titanium pigment, bentonite and calcined gangue powder by using a ball mill, performing ball milling dispersion, and sieving by using a 200-mesh standard sieve;
(2) Adding 25 parts of ionized water, sodium hexametaphosphate, polymethylphenylsiloxane and 2.2 parts of trioctyl phosphate into a dispersion tank, and stirring for 10 min at the rotation speed of 500 r/min to uniformly mix the materials; sequentially and slowly adding titanium dioxide, bentonite, calcined gangue and expandable graphite, stirring at 1080 r/min for 17 min, sequentially and slowly adding ammonium polyphosphate, pentaerythritol, melamine and chlorinated paraffin, and stirring at 2700 r/min for 60 min at high speed to prepare the slurry.
(3) Slowly adding the aqueous epoxy emulsion, the aqueous acetic acid tertiary emulsion and the ethylene glycol into the slurry, stirring for 10 min at a medium speed of 600 r/min, then adding the diethyl toluenediamine and 0.8 part of trioctyl phosphate again, and continuously stirring for 10 min to ensure that the dispersion is more uniform, thus preparing the fireproof coating.
(4) And (3) pouring the prepared fireproof paint into a ball mill for ball milling for 2.8 and h, performing ball milling dispersion, filtering by using a 200-mesh standard sieve, adjusting the viscosity of the system to 26 s by using 25 parts of lithium bentonite, and sealing and storing in a container bottle to obtain the mineral water-based intumescent fireproof paint.
Example 4
27 parts of deionized water, 15 parts of aqueous epoxy emulsion, 21 parts of aqueous acrylic emulsion, 27 parts of ammonium polyphosphate, 6 parts of dipentaerythritol, 12 parts of melamine, 12 parts of bentonite, 1 part of water glass, 1 part of sodium hydroxide, 3 parts of calcined coal gangue, 2.3 parts of calcium silicate, 5 parts of expandable graphite, 10 parts of chlorinated paraffin, 5 parts of triethylene tetramine, 7 parts of sodium polyacrylate, 16 parts of polyether polyester modified organosiloxane, 14 parts of dodecanol ester and 7 parts of tributyl phosphate.
The preparation method comprises the following steps:
(1) Ammonium polyphosphate, dipentaerythritol, melamine, expandable graphite, bentonite, calcined gangue and calcium silicate powder are ground by a ball mill to 1 h, ball-milled and dispersed, and sieved by a 200-mesh standard sieve.
(2) Mixing and stirring sodium hydroxide, water glass and 2 parts of deionized water in a plastic beaker for 10 min, pouring the mixed solution into a dispersion tank after the mixed solution is cooled to room temperature, increasing the rotating speed to 270 r/min, slowly adding coal gangue powder, stirring for 18 min, adding calcium silicate, and continuing stirring for 5 min to obtain the coal gangue geopolymer slurry.
(3) And (3) placing the coal gangue geopolymer slurry into a curing box, curing at 60 ℃ for 24 h, taking out, placing into a ball mill for ball milling for 1-2 hours, performing ball milling dispersion, and sieving with a 200-mesh standard sieve to obtain coal gangue geopolymer powder.
(4) Adding 11 parts of deionized water, sodium polyacrylate, polyether polyester modified organosiloxane and 5 parts of tributyl phosphate into a dispersion tank, and stirring for 10 min at the rotation speed of 500 r/min to uniformly mix the materials; sequentially and slowly adding the coal gangue geopolymer, bentonite and expandable graphite, stirring for 14 min at the rotating speed of 1160 r/min, sequentially and slowly adding ammonium polyphosphate, dipentaerythritol, melamine and chlorinated paraffin, and stirring for 60 min at the high speed at the rotating speed of 3580 r/min, so as to prepare the mixed slurry.
(5) Slowly adding the aqueous epoxy emulsion, the aqueous acrylic emulsion and the dodecanol ester into the mixed slurry, stirring for 10 min at a medium speed of 600 r/min, adding triethylene tetramine and 2 parts of tributyl phosphate again, and continuously stirring for 10 min to ensure that the dispersion is more uniform, thus preparing the fireproof coating.
(6) And (3) pouring the prepared fireproof paint into a ball mill for ball milling for 2.2. 2.2 h, performing ball milling dispersion, sieving with a 200-mesh standard sieve, adjusting the system viscosity to 27 s by using 14 parts of deionized water, and sealing and storing in a container bottle to obtain the mineral water-based intumescent fireproof paint.
Example 5
14 parts of titanium dioxide, 5 parts of bentonite, 3 parts of calcined gangue, 20 parts of deionized water, 40 parts of aqueous polyurethane emulsion, 27 parts of ammonium polyphosphate, 6 parts of pentaerythritol, 12 parts of melamine, 7 parts of expandable graphite, 14 parts of chlorinated paraffin, 17 parts of sodium polyacrylate polycarboxylate, 11 parts of sodium carboxymethyl cellulose, 7 parts of polydimethylsiloxane, 9 parts of glycerol and 6 parts of tributyl phosphate.
The preparation method comprises the following steps:
(1) Grinding ammonium polyphosphate, pentaerythritol, melamine, expandable graphite, titanium pigment, bentonite and calcined gangue powder by using a ball mill, performing ball milling dispersion, and sieving by using a 200-mesh standard sieve;
(2) Adding 20 parts of ionized water, sodium polyacrylate, polydimethylsiloxane and tributyl phosphate 4.5 into a dispersion tank, and stirring at the rotation speed of 500 r/min for 10 min to uniformly mix the materials; sequentially and slowly adding titanium dioxide, bentonite, calcined gangue and expandable graphite, stirring at 1140 r/min for 13 min, sequentially and slowly adding ammonium polyphosphate, pentaerythritol, melamine and chlorinated paraffin, and stirring at 2680 r/min for 60 min at high speed to prepare the slurry.
(3) Slowly adding the aqueous polyurethane emulsion and the glycerol into the slurry, stirring for 10 min at a medium speed of 600 r/min, adding 1.5 parts of tributyl phosphate again, and continuously stirring for 10 min to ensure that the dispersion is more uniform, thus preparing the fireproof coating.
(4) And (3) pouring the prepared fireproof paint into a ball mill for ball milling for 3 h, performing ball milling dispersion, sieving by using a 200-mesh standard sieve, adjusting the viscosity of the system to 20 s by using 11 parts of sodium carboxymethyl cellulose, and then sealing and storing in a container bottle to obtain the mineral water-based intumescent fireproof paint.
Example 6
19 parts of deionized water, 40 parts of polyvinyl acetate emulsion, 36 parts of ammonium polyphosphate, 6 parts of dipentaerythritol, 12 parts of melamine, 16 parts of titanium pigment, 9 parts of calcined coal gangue, 3 parts of water glass, 6 parts of sodium hydroxide, 21 parts of calcium silicate, 18 parts of expandable graphite, 15 parts of chlorinated paraffin, 10 parts of sodium polycarboxylate type high polymer dispersing agent, 26 parts of sodium carboxymethyl cellulose, 20 parts of polyether polyester modified organosiloxane, 10 parts of glycerol and 15 parts of tributyl phosphate.
The preparation method comprises the following steps:
(1) Ammonium polyphosphate, dipentaerythritol, melamine, calcined gangue, expandable graphite, titanium pigment and calcium silicate powder are ground by a ball mill to 1 h, ball-milled and dispersed, and sieved by a 200-mesh standard sieve.
(2) Mixing and stirring sodium hydroxide, water glass and 4 parts of deionized water in a plastic beaker for 10 min, pouring the mixed solution into a dispersion tank after the mixed solution is cooled to room temperature, increasing the rotating speed to 270 r/min, slowly adding coal gangue powder, stirring for 18 min, adding calcium silicate, and continuing stirring for 5 min to obtain the coal gangue geopolymer slurry.
(3) And (3) placing the coal gangue geopolymer slurry into a curing box, curing at 60 ℃ for 24 h, taking out, placing into a ball mill for ball milling for 1.6 h, performing ball milling dispersion, and sieving with a 200-mesh standard sieve to obtain coal gangue geopolymer powder.
(4) 15 parts of deionized water, a sodium polycarboxylate type high polymer dispersing agent, polyether polyester modified organosiloxane and 12 parts of tributyl phosphate are added into a dispersing tank and stirred for 10 min at the rotation speed of 500 r/min, so that the components are uniformly mixed; sequentially and slowly adding the coal gangue geopolymer, the titanium dioxide and the expandable graphite, stirring for 16 min at the rotation speed of 1165 and r/min, sequentially and slowly adding the ammonium polyphosphate, the dipentaerythritol, the melamine and the chlorinated paraffin, and stirring for 60 min at the high speed at the rotation speed of 3650 and r/min to prepare the mixed slurry.
(5) Slowly adding polyvinyl acetate emulsion and glycerol into the mixed slurry, stirring at medium speed of 600 r/min for 10 min, adding 3 parts of tributyl phosphate again, and continuously stirring for 10 min to ensure that the dispersion is more uniform, thus preparing the fireproof coating.
(6) And (3) pouring the prepared fireproof paint into a ball mill for ball milling for 3.5-h, performing ball milling dispersion, sieving with a 200-mesh standard sieve, adjusting the viscosity of the system to 26 s by 26 parts of sodium carboxymethyl cellulose, and sealing and storing in a container bottle to obtain the mineral water-based intumescent fireproof paint.
Example 7
29 parts of deionized water, 20 parts of aqueous epoxy emulsion, 20 parts of aqueous silicone-acrylate emulsion, 36 parts of ammonium polyphosphate, 6 parts of pentaerythritol, 12 parts of melamine, 17 parts of titanium dioxide, 1 part of calcined coal gangue, 9 parts of fly ash, 7 parts of water glass, 12 parts of sodium hydroxide, 18 parts of expandable graphite, 15 parts of chlorinated paraffin, 10 parts of sodium hexametaphosphate, 12 parts of triethylene tetramine, 20 parts of polymethylphenylsiloxane, 10 parts of dodecanol ester and 15 parts of polysiloxane.
The preparation method comprises the following steps:
(1) And grinding calcined gangue, fly ash, ammonium polyphosphate, pentaerythritol, melamine, expandable graphite and titanium pigment powder by using a ball mill to obtain 1 h, performing ball milling dispersion, and sieving by using a 200-mesh standard sieve.
(2) Mixing and stirring sodium hydroxide, water glass and 2 parts of deionized water in a plastic beaker for 10 min, pouring the mixed solution into a dispersion tank after the mixed solution is cooled to room temperature, increasing the rotating speed to 275 r/min, slowly adding fly ash powder, and stirring for 15 min to obtain the fly ash geopolymer slurry.
(3) And (3) placing the pulverized fuel ash geopolymer slurry into a curing box, curing at 60 ℃ for 24 h, taking out, placing into a ball mill for ball milling for 1.5 h, performing ball milling dispersion, and sieving with a 200-mesh standard sieve to obtain pulverized fuel ash geopolymer powder.
(4) 17 parts of deionized water, sodium hexametaphosphate, polymethylphenylsiloxane and 11 parts of polysiloxane are added into a dispersion tank and stirred for 10 min at the rotation speed of 500 r/min, so that the deionized water, the sodium hexametaphosphate, the polymethylphenylsiloxane and the 11 parts of polysiloxane are uniformly mixed; sequentially and slowly adding the pulverized fuel ash geopolymer, the titanium dioxide, the calcined coal gangue and the expandable graphite, stirring for 18 min at the rotating speed of 1155 r/min, sequentially and slowly adding ammonium polyphosphate, pentaerythritol, melamine and chlorinated paraffin, and stirring for 60 min at the high speed of 3800 r/min to prepare the mixed slurry.
(5) Slowly adding the aqueous epoxy emulsion, the aqueous silicone-acrylate emulsion and the dodecanol ester into the mixed slurry, stirring for 10 min at a medium speed of 600 r/min, adding triethylene tetramine and 4 parts of polysiloxane again, and continuously stirring for 10 min to ensure that the dispersion is more uniform, thus preparing the fireproof coating.
(6) And (3) pouring the prepared fireproof paint into a ball mill for ball milling for 3 h, performing ball milling dispersion, sieving with a 200-mesh standard sieve, adjusting the viscosity of the system to 23 s by 10 parts of deionized water, and sealing and storing in a container bottle to obtain the mineral water-based intumescent fireproof paint.
Comparative example:
15 parts of titanium dioxide, 23 parts of deionized water, 18 parts of aqueous epoxy emulsion, 18 parts of aqueous silicone-acrylate emulsion, 30 parts of ammonium polyphosphate, 12 parts of pentaerythritol, 18 parts of melamine, 4.5 parts of expandable graphite, 3 parts of chlorinated paraffin, 4 parts of diethyl toluenediamine, 10 parts of sodium polycarboxylate type high polymer dispersing agent, 8 parts of sodium carboxymethyl cellulose, 3 parts of polymethylphenylsiloxane, 6 parts of ethylene glycol and 5 parts of tributyl phosphate.
The preparation method comprises the following steps:
(1) Grinding ammonium polyphosphate, pentaerythritol, melamine, expandable graphite and titanium dioxide powder by a ball mill, performing ball milling dispersion, and sieving by a 200-mesh standard sieve;
(2) Adding 23 parts of deionized water, a sodium polycarboxylate type high polymer dispersing agent, polymethylphenylsiloxane and 3.8 tributyl phosphate into a dispersing tank, and stirring for 10 min at the rotation speed of 500 r/min to uniformly mix the components; sequentially and slowly adding titanium dioxide and expandable graphite, stirring for 10-20 min at the rotating speed of 1155 r/min, sequentially and slowly adding ammonium polyphosphate, pentaerythritol, melamine and chlorinated paraffin, and stirring for 60 min at the high speed of 2650 r/min, thus preparing the slurry.
(3) Slowly adding the aqueous epoxy emulsion, the aqueous organosilicon emulsion and the ethylene glycol into the slurry, stirring for 10 min at a medium speed of 600 r/min, then adding the diethyltoluenediamine and the tributyl 1.2 phosphate again, and continuously stirring for 10 min to ensure that the dispersion is more uniform, thus preparing the fireproof coating.
(4) The prepared fireproof paint is poured into a ball mill for ball milling for 3.3 h, ball milling and dispersion are carried out, and a 200-mesh standard sieve is used for sieving. 8 parts of sodium carboxymethyl cellulose is used for regulating the viscosity of the system to 22 to s, and then the system is stored in a container bottle in a sealing way, thus obtaining the mineral water-based intumescent fire-retardant coating.
Comparison of the temperatures of the back sheets of comparative example and example 1 as shown in fig. 1, the back sheet temperature of example 1 was lower overall than that of the comparative example, indicating that the fire resistance of the fire retardant coating with addition of the coal gangue geopolymer was significantly enhanced, exhibiting excellent fire resistance.
FIG. 3 shows SEM images of the flame retardant coating of the comparative example, from which it can be seen that only TiO is added 2 The carbon layer structure of the steel plate is loose, the foam holes are unevenly distributed, a plurality of gaps exist, the generated gas cannot be effectively coated, the heat transfer to the steel plate is easy to accelerate, and the steel structure cannot be protected for a long time.
TABLE 1 influence of different cases on the fireproof Properties of the coating
The examples in table 1 are compared with the comparative examples in that the surface of the expanded carbon layer is smooth and flat, the expansion ratio after the fire resistance test is high, the temperature of the back plate is low, and excellent fire resistance is exhibited, probably because the coal gangue geopolymer has a three-dimensional network structure consisting of silicon oxygen tetrahedra and aluminum oxygen tetrahedra as the skeleton, which helps to improve the heat shielding property and oxidation resistance of the carbon layer, is favorable for isolating air and heat, and inhibits the thermal decomposition of the fire-resistant coating.
The effect of the examples and the commercial samples on the fire resistance of the coating can be seen from Table 1. Wherein, the commercial sample 1 and the commercial sample 2 are purchased from two large-scale manufacturers of Hebei gallery and Shenzhen respectively. The commercial sample 1 is hardly expanded in the combustion process, the temperature rising rate of the steel plate in the early stage of combustion is high, the temperature reaches 404.2 ℃ in 7 min of combustion, the temperature of the steel plate in the later stage is always in a stable state, the back balance temperature of the steel plate in 80 min of combustion is 434.2 ℃, the fire resistance is poor, and the steel structure is not protected for a long time. The commercial sample 2 has higher expansion of the coating and slow temperature rising rate of the steel plate 25 min before burning, but after 25 min, the carbon layer at the center of burning flame is oxidized, heat transfer to the inside is promoted due to the existence of holes on the surface of the coating, the temperature rising rate of the steel plate is accelerated, and when burning for 40 min, the carbon layer at the center of flame is completely oxidized, the steel plate is exposed to flame, and the temperature of the steel plate is quickly raised to 538 ℃, so that the steel plate cannot be protected. Therefore, compared with the self-made fireproof coating provided by the invention, the self-made fireproof coating has the advantages of high expansion ratio and low back plate temperature, has excellent fireproof performance, and has potential market prospect.
Table 2 comparison of physicochemical properties of example 1 and comparative example
Comparison of physicochemical properties of comparative example and example 1 as shown in table 2, both of the apparent state and crack resistance were acceptable, but the tack-free time and adhesive strength of example 1 were superior to those of comparative example.
Claims (10)
1. A mineral water-based intumescent fire-retardant coating is characterized in that: the material comprises the following raw materials in parts by weight: 5-75 parts of deionized water, 20-9 parts of resin emulsion, 10-80 parts of a dehydration catalyst, 5-75 parts of a char forming agent, 10-80 parts of a foaming agent, 1-50 parts of a mineral filler, 1-30 parts of expandable graphite, 1-30 parts of chlorinated paraffin, 1-30 parts of a curing agent, 0.1-30 parts of a dispersing agent, 0-30 parts of a thickening agent, 0.1-30 parts of a leveling agent, 0.1-30 parts of a film forming auxiliary agent and 0.2-30 parts of a defoaming agent.
2. The mineral water-based intumescent fire retardant coating of claim 1, wherein: the mineral filler comprises coal gangue or coal gangue geopolymer, and one or more of titanium pigment, hydrotalcite, bentonite, fly ash and fly ash geopolymer are added into the mineral filler.
3. The mineral water-based intumescent fire retardant coating of claim 2, wherein: the preparation method of the coal gangue geopolymer comprises the following steps:
(1) Grinding the coal gangue raw material calcined at 500-1500 ℃ for 0.5-1.5 h by using a ball mill, performing ball milling dispersion, and sieving by using a 200-mesh standard sieve;
(2) Mixing and stirring sodium hydroxide, water glass and deionized water for 5-25 min, after the mixture is cooled to room temperature, increasing the rotating speed to 200-800 r/min, slowly adding coal gangue powder, stirring for 10-60 min, adding calcium silicate, and continuously stirring for 3-30 min to obtain coal gangue geopolymer slurry;
(3) And (3) placing the coal gangue geopolymer slurry into a curing box, curing for 11-40 hours at the temperature of 30-90 ℃, taking out, ball-milling, dispersing and sieving with a 200-mesh standard sieve to obtain coal gangue geopolymer powder.
4. The mineral water-based intumescent fire retardant coating of claim 2, wherein: the gangue geopolymer comprises the following components in parts by weight: 0.5-20 parts of sodium hydroxide, 0.5-20 parts of water glass, 0.5-20 parts of coal gangue with the calcined calcium oxide content of 1-30 wt%, 1-50 parts of calcium silicate and 1-50 parts of deionized water.
5. The mineral water-based intumescent fire retardant coating of claim 2, wherein: the preparation method of the coal ash geopolymer comprises the following steps:
(1) Grinding the fly ash raw material for 0.5-1.5 h by using a ball mill, performing ball milling dispersion, and sieving by using a 200-mesh standard sieve;
(2) Mixing and stirring sodium hydroxide, water glass and deionized water for 5-25 min, cooling to room temperature, increasing the rotating speed to 200-800 r/min, slowly adding fly ash powder, and stirring for 10-60 min to obtain the fly ash geopolymer slurry;
(3) Placing the pulverized fuel ash geopolymer slurry into a curing box, curing for 11-40 hours at 30-90 ℃, taking out, ball-milling, dispersing and sieving with a 200-mesh standard sieve to obtain pulverized fuel ash geopolymer powder;
the fly ash geopolymer comprises the following components in parts by weight: 0.5-20 parts of sodium hydroxide, 0.5-20 parts of water glass, 0.5-20 parts of fly ash and 1-50 parts of deionized water.
6. The mineral water-based intumescent fire retardant coating of claim 1, wherein: the resin emulsion comprises one or more of aqueous epoxy resin emulsion, aqueous pure acrylic resin emulsion, aqueous acetic acid tertiary emulsion, aqueous silicone acrylic emulsion, aqueous organic silicon emulsion, aqueous polyurethane emulsion and polyvinyl acetate emulsion, and the resin emulsion is commercially available emulsion.
7. The mineral water-based intumescent fire retardant coating of claim 1, wherein: the curing agent is epoxy resin general amine curing agent and comprises one or more of diethyl toluene diamine, diethylenetriamine and triethylenetetramine.
8. The mineral water-based intumescent fire retardant coating of claim 1, wherein: the dehydration catalyst is ammonium polyphosphate; the char forming agent is one of pentaerythritol and dipentaerythritol; the foaming agent is melamine.
9. The mineral water-based intumescent fire retardant coating of claim 1, wherein: the expansion coefficient of the expandable graphite is 100, and the particle size of the expandable graphite is 5-20 mu m;
the dispersing agent is one or more of sodium polycarboxylate high molecular dispersing agent SN-5040, sodium polyacrylate ASAP and sodium hexametaphosphate SHMP;
the thickener is one or more of sodium carboxymethyl cellulose and lithium bentonite; the leveling agent is one or more of polydimethylsiloxane, polyether polyester modified organosiloxane and polymethylphenylsiloxane; the defoaming agent is one or more of polysiloxane, tributyl phosphate and trioctyl phosphate; the film forming auxiliary agent is one or more of glycol, glycerol and dodecanol ester.
10. A method for preparing the mineral water-based intumescent fire retardant coating of any one of claims 1-9, which is characterized by comprising the following steps:
(1) Grinding the powder by a ball mill, performing ball milling dispersion, and sieving by a 200-mesh standard sieve;
(2) Adding a dispersing agent, 0.1-20 parts of a defoaming agent and a leveling agent into 1-50 parts of deionized water, and stirring for 5-15 min at 400-600 r/min to uniformly mix the components; sequentially adding mineral filler and expandable graphite, stirring for 5-15 min at a rotating speed of 1000-1200 r/min, adding a dehydration catalyst, a char forming agent, a foaming agent and chlorinated paraffin, and stirring for 50-80 min at a rotating speed of 2000-3000 r/min to prepare slurry;
(3) Slowly adding the resin emulsion and the film-forming auxiliary agent into the slurry, stirring for 5-15 min at 400-800 r/min, adding the curing agent and 0.1-10 parts of defoamer, and continuously stirring for 5-15 min to ensure that the dispersion is more uniform, thus preparing the fireproof coating;
(4) And adding deionized water or a thickener for a small amount for multiple times according to the viscosity of the water-based coating system, and adjusting the viscosity of the system to 15-30 s to obtain the mineral water-based intumescent fireproof coating.
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| CN117486225A (en) * | 2023-12-28 | 2024-02-02 | 天津包钢稀土研究院有限责任公司 | Low-viscosity rare earth aluminosilicate and preparation method and application thereof |
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| CN108424673A (en) * | 2018-04-25 | 2018-08-21 | 重庆大学 | A kind of alkali-activated carbonatite fly ash base expansion steel-structure fireproofing coating |
| CN113213787A (en) * | 2021-05-28 | 2021-08-06 | 王庆乐 | Production process for preparing alkali cementing material from coal gangue |
| CN115368808A (en) * | 2022-09-19 | 2022-11-22 | 河南邦固消防科技有限公司 | Water-based inorganic nano intumescent fire-retardant coating for steel structure and preparation method thereof |
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| CN108424673A (en) * | 2018-04-25 | 2018-08-21 | 重庆大学 | A kind of alkali-activated carbonatite fly ash base expansion steel-structure fireproofing coating |
| CN113213787A (en) * | 2021-05-28 | 2021-08-06 | 王庆乐 | Production process for preparing alkali cementing material from coal gangue |
| CN115368808A (en) * | 2022-09-19 | 2022-11-22 | 河南邦固消防科技有限公司 | Water-based inorganic nano intumescent fire-retardant coating for steel structure and preparation method thereof |
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| CN117486225A (en) * | 2023-12-28 | 2024-02-02 | 天津包钢稀土研究院有限责任公司 | Low-viscosity rare earth aluminosilicate and preparation method and application thereof |
| CN117486225B (en) * | 2023-12-28 | 2024-03-29 | 天津包钢稀土研究院有限责任公司 | Low-viscosity rare earth aluminosilicate and preparation method and application thereof |
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