CN108546438A - A kind of aqueous ultra-thin fire-resistant coating for steel structure and its preparation method and application based on aluminum diethylphosphinate - Google Patents
A kind of aqueous ultra-thin fire-resistant coating for steel structure and its preparation method and application based on aluminum diethylphosphinate Download PDFInfo
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 51
- 239000010959 steel Substances 0.000 title claims abstract description 51
- 238000000576 coating method Methods 0.000 title claims abstract description 50
- 239000011248 coating agent Substances 0.000 title claims abstract description 43
- XSAOTYCWGCRGCP-UHFFFAOYSA-K aluminum;diethylphosphinate Chemical compound [Al+3].CCP([O-])(=O)CC.CCP([O-])(=O)CC.CCP([O-])(=O)CC XSAOTYCWGCRGCP-UHFFFAOYSA-K 0.000 title claims abstract description 37
- 238000002360 preparation method Methods 0.000 title claims abstract description 5
- 230000009970 fire resistant effect Effects 0.000 title abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 41
- 239000003063 flame retardant Substances 0.000 claims abstract description 34
- 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 claims abstract description 29
- 239000004114 Ammonium polyphosphate Substances 0.000 claims abstract description 7
- 235000019826 ammonium polyphosphate Nutrition 0.000 claims abstract description 7
- 229920001276 ammonium polyphosphate Polymers 0.000 claims abstract description 7
- 239000000839 emulsion Substances 0.000 claims description 11
- 230000002195 synergetic effect Effects 0.000 claims description 11
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 10
- 239000002270 dispersing agent Substances 0.000 claims description 8
- 239000007787 solid Substances 0.000 claims description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 5
- 239000004408 titanium dioxide Substances 0.000 claims description 5
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 4
- 239000013530 defoamer Substances 0.000 claims description 4
- 229920000642 polymer Polymers 0.000 claims description 4
- 239000002994 raw material Substances 0.000 claims description 4
- 239000005995 Aluminium silicate Substances 0.000 claims description 3
- 235000012211 aluminium silicate Nutrition 0.000 claims description 3
- HPTYUNKZVDYXLP-UHFFFAOYSA-N aluminum;trihydroxy(trihydroxysilyloxy)silane;hydrate Chemical compound O.[Al].[Al].O[Si](O)(O)O[Si](O)(O)O HPTYUNKZVDYXLP-UHFFFAOYSA-N 0.000 claims description 3
- 238000004079 fireproofing Methods 0.000 claims description 3
- 229910052621 halloysite Inorganic materials 0.000 claims description 3
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 3
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 claims description 3
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 claims description 3
- 239000000377 silicon dioxide Substances 0.000 claims description 3
- 239000002562 thickening agent Substances 0.000 claims description 3
- XNWFRZJHXBZDAG-UHFFFAOYSA-N 2-METHOXYETHANOL Chemical compound COCCO XNWFRZJHXBZDAG-UHFFFAOYSA-N 0.000 claims description 2
- COBPKKZHLDDMTB-UHFFFAOYSA-N 2-[2-(2-butoxyethoxy)ethoxy]ethanol Chemical compound CCCCOCCOCCOCCO COBPKKZHLDDMTB-UHFFFAOYSA-N 0.000 claims description 2
- POAOYUHQDCAZBD-UHFFFAOYSA-N 2-butoxyethanol Chemical compound CCCCOCCO POAOYUHQDCAZBD-UHFFFAOYSA-N 0.000 claims description 2
- SVONRAPFKPVNKG-UHFFFAOYSA-N 2-ethoxyethyl acetate Chemical compound CCOCCOC(C)=O SVONRAPFKPVNKG-UHFFFAOYSA-N 0.000 claims description 2
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims description 2
- 229920000877 Melamine resin Polymers 0.000 claims description 2
- 229910019142 PO4 Inorganic materials 0.000 claims description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 2
- 229920002472 Starch Polymers 0.000 claims description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 2
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 2
- 235000010948 carboxy methyl cellulose Nutrition 0.000 claims description 2
- 239000008112 carboxymethyl-cellulose Substances 0.000 claims description 2
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 claims description 2
- 239000005038 ethylene vinyl acetate Substances 0.000 claims description 2
- 239000011521 glass Substances 0.000 claims description 2
- 229920003063 hydroxymethyl cellulose Polymers 0.000 claims description 2
- 229940031574 hydroxymethyl cellulose Drugs 0.000 claims description 2
- 229910052901 montmorillonite Inorganic materials 0.000 claims description 2
- 229910017059 organic montmorillonite Inorganic materials 0.000 claims description 2
- 150000001282 organosilanes Chemical class 0.000 claims description 2
- 239000010452 phosphate Substances 0.000 claims description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 2
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims description 2
- 229920002432 poly(vinyl methyl ether) polymer Polymers 0.000 claims description 2
- 229920000058 polyacrylate Polymers 0.000 claims description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 2
- 229920000036 polyvinylpyrrolidone Polymers 0.000 claims description 2
- 239000001267 polyvinylpyrrolidone Substances 0.000 claims description 2
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 claims description 2
- 235000012239 silicon dioxide Nutrition 0.000 claims description 2
- 239000008107 starch Substances 0.000 claims description 2
- 235000019698 starch Nutrition 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims description 2
- 229920001909 styrene-acrylic polymer Polymers 0.000 claims description 2
- 239000010455 vermiculite Substances 0.000 claims description 2
- 229910052902 vermiculite Inorganic materials 0.000 claims description 2
- 235000019354 vermiculite Nutrition 0.000 claims description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims 2
- GAWIXWVDTYZWAW-UHFFFAOYSA-N C[CH]O Chemical group C[CH]O GAWIXWVDTYZWAW-UHFFFAOYSA-N 0.000 claims 1
- 239000011324 bead Substances 0.000 claims 1
- 239000001913 cellulose Substances 0.000 claims 1
- 229920002678 cellulose Polymers 0.000 claims 1
- 239000004927 clay Substances 0.000 claims 1
- 229910052570 clay Inorganic materials 0.000 claims 1
- 235000019441 ethanol Nutrition 0.000 claims 1
- 229910052710 silicon Inorganic materials 0.000 claims 1
- 239000010703 silicon Substances 0.000 claims 1
- 235000010215 titanium dioxide Nutrition 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000003610 charcoal Substances 0.000 abstract description 2
- 230000000979 retarding effect Effects 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 238000009775 high-speed stirring Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000011056 performance test Methods 0.000 description 3
- 239000004908 Emulsion polymer Substances 0.000 description 1
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 description 1
- 239000004354 Hydroxyethyl cellulose Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 150000003863 ammonium salts Chemical group 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000004005 microsphere Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 235000019422 polyvinyl alcohol Nutrition 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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
- 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
- C09D123/00—Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Coating compositions based on derivatives of such polymers
- C09D123/02—Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
- C09D123/04—Homopolymers or copolymers of ethene
- C09D123/08—Copolymers of ethene
- C09D123/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
- C09D123/0853—Vinylacetate
-
- 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
- C09D125/00—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 aromatic carbocyclic ring; Coating compositions based on derivatives of such polymers
- C09D125/02—Homopolymers or copolymers of hydrocarbons
- C09D125/04—Homopolymers or copolymers of styrene
- C09D125/08—Copolymers of styrene
- C09D125/14—Copolymers of styrene with unsaturated 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
- 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
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- 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
- C09D7/63—Additives non-macromolecular organic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/32—Phosphorus-containing compounds
- C08K2003/321—Phosphates
- C08K2003/322—Ammonium phosphate
- C08K2003/323—Ammonium polyphosphate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
Description
技术领域technical field
本发明属于钢结构防火涂料技术领域，具体涉及一种基于二乙基次膦酸铝的水性超薄钢结构防火涂料及其制备方法和应用。The invention belongs to the technical field of fireproof coatings for steel structures, and in particular relates to a water-based ultra-thin fireproof coating for steel structures based on aluminum diethylphosphinate and its preparation method and application.
背景技术Background technique
钢结构与传统的木结构、砖石结构和钢筋混凝土结构相比，具有机械强度高、承载能力强、自重轻，安装方便，施工周期短，抗震性能优良等优点，在建筑工程中发挥着独特且日益重要的作用。由于钢材自身不燃烧，所以人们对钢结构的防火隔热问题一直重视不够。实际上，钢材的机械强度随着温度的升高快速下降，在达到建筑钢材的临界温度540℃时，其承载能力会急剧下降导致建筑物坍塌，而钢材易导热的特性使得其达到临界温度需要几分钟，因此，耐火性不好是钢结构建筑的一个致命缺点。Compared with the traditional wood structure, masonry structure and reinforced concrete structure, the steel structure has the advantages of high mechanical strength, strong bearing capacity, light weight, convenient installation, short construction period, and excellent seismic performance. It plays a unique role in construction engineering. and increasingly important role. Because steel itself does not burn, people have not paid enough attention to the fire and heat insulation of steel structures. In fact, the mechanical strength of steel decreases rapidly with the increase of temperature. When it reaches the critical temperature of construction steel at 540°C, its bearing capacity will drop sharply and cause the building to collapse. Therefore, poor fire resistance is a fatal shortcoming of steel structure buildings.
在钢结构表面施涂一层防火涂料形成耐火隔热保护层是实现钢结构防火的最可靠、最经济、最实用的方法。在各类钢结构防火涂料中，以溶剂型的超薄型钢结构防火涂料的性能最好、用量最大，但在生产、施工中存在污染环境、危害人体健康等显著不足，而现有的众多水性钢结构防火涂料中均采用由聚磷酸铵、三聚氰胺和季戊四醇组成的膨胀型阻燃体系作为主要的阻燃剂，但是该膨胀型阻燃体系发烟量较大，而且聚磷酸铵结构中的P‐O结构和铵盐基团的吸潮特性直接影响防火涂料的耐久性和耐候性。Applying a layer of fire-resistant paint on the surface of steel structures to form a fire-resistant and heat-insulating protective layer is the most reliable, economical and practical way to achieve fire prevention in steel structures. Among all kinds of fireproof coatings for steel structures, solvent-based ultra-thin fireproof coatings for steel structures have the best performance and the largest dosage, but there are significant deficiencies such as polluting the environment and endangering human health during production and construction, while many existing water-based The intumescent flame retardant system composed of ammonium polyphosphate, melamine and pentaerythritol is used as the main flame retardant in steel structure fire retardant coatings, but the intumescent flame retardant system has a large amount of smoke, and the P in the ammonium polyphosphate structure The ‐O structure and the moisture absorption characteristics of the ammonium salt group directly affect the durability and weather resistance of the fire retardant coating.
发明内容Contents of the invention
本发明的目的在于针对现有水性钢结构防火涂料的耐久性差和耐候性差等的诸多不足，提供一种基于二乙基次膦酸铝的水性超薄钢结构防火涂料及其制备方法和应用。The purpose of the present invention is to provide a water-based ultra-thin steel structure fireproof coating based on diethylphosphinate aluminum and its preparation method and application for the many shortcomings of the existing water-based steel structure fireproof coating, such as poor durability and poor weather resistance.
本发明技术方案如下。The technical scheme of the present invention is as follows.
一种基于二乙基次膦酸铝的水性超薄钢结构防火涂料，所述涂料由35-55重量份阻燃体系、40-50重量份成膜体系、5-15重量份阻燃协效体系和水组成。A water-based ultra-thin fireproof coating for steel structures based on aluminum diethylphosphinate, the coating consists of 35-55 parts by weight of a flame-retardant system, 40-50 parts by weight of a film-forming system, and 5-15 parts by weight of a flame-retardant synergistic system and water composition.
本发明创造性的采用二乙基次膦酸铝作为多聚磷酸铵膨胀型阻燃体系中的重要组分。The invention creatively uses aluminum diethylphosphinate as an important component in the ammonium polyphosphate intumescent flame retardant system.
进一步地，所述阻燃体系由以下重量份的原料组成：多聚磷酸铵 7-28重量份，二乙基次膦酸铝7-28重量份，季戊四醇4-10重量份和三聚氰胺6-10重量份。Further, the flame retardant system is composed of the following raw materials in parts by weight: 7-28 parts by weight of ammonium polyphosphate, 7-28 parts by weight of aluminum diethylphosphinate, 4-10 parts by weight of pentaerythritol and 6-10 parts by weight of melamine parts by weight.
进一步地，所述成膜体系由以下重量份的原料组成：聚合物乳液 35-45份、分散剂0.1‐3份、消泡剂0.1‐3份、成膜助剂0.1‐3份和增稠剂0.1‐3份；所述分散剂选自：磷酸盐类分散剂、聚丙烯酸盐类分散剂中的一种以上；所述消泡剂选自：有机硅烷类消泡剂中的一种；所述成膜助剂包括：醋酸乙氧基乙酯、乙二醇单甲醚、乙二醇单丁醚、异丙醇、三乙二醇单丁醚等中的一种或一种以上；所述增稠剂选自：羧甲基纤维素、羟甲基纤维素、羟乙基纤维素、淀粉、聚乙烯醇、聚乙烯基甲醚、聚乙烯吡咯烷酮中的一种。Further, the film-forming system is composed of the following raw materials by weight: 35-45 parts of polymer emulsion, 0.1-3 parts of dispersant, 0.1-3 parts of defoamer, 0.1-3 parts of film-forming aid and thickening 0.1-3 parts of agent; the dispersant is selected from more than one of phosphate dispersant and polyacrylate dispersant; the defoamer is selected from one of organosilane defoamer; The film-forming aids include: one or more of ethoxyethyl acetate, ethylene glycol monomethyl ether, ethylene glycol monobutyl ether, isopropanol, triethylene glycol monobutyl ether, etc.; The thickener is selected from one of carboxymethyl cellulose, hydroxymethyl cellulose, hydroxyethyl cellulose, starch, polyvinyl alcohol, polyvinyl methyl ether and polyvinyl pyrrolidone.
进一步地，所述聚合物乳液选自：纯丙乳液、苯丙乳液、硅丙乳液、乙烯-醋酸乙烯酯共聚乳液中的一种。Further, the polymer emulsion is selected from one of pure acrylic emulsion, styrene-acrylic emulsion, silicon-acrylic emulsion, and ethylene-vinyl acetate copolymer emulsion.
进一步地，所述阻燃协效体系选自：二氧化硅、二氧化钛、高岭土、蒙脱土、有机蒙脱土、埃洛石空心玻璃微珠、膨胀蛭石中的一种以上。Further, the flame retardant synergistic system is selected from more than one of silica, titanium dioxide, kaolin, montmorillonite, organic montmorillonite, halloysite hollow glass microspheres, and expanded vermiculite.
进一步地，所述水的添加量满足：使所述防火涂料的固含量维持在50～70％所需补加的水的重量。Further, the added amount of the water satisfies: the weight of additional water required to maintain the solid content of the fire-resistant coating at 50-70%.
一种基于二乙基次膦酸铝的水性超薄钢结构防火涂料的制备方法，先将阻燃体系、阻燃协效体系在球磨机中研磨均匀后过150目筛，然后加入成膜体系，并加入水，高速搅拌分散均匀后即得到固含量 50～70％的本发明所述的基于二乙基次膦酸铝的水性钢结构防火涂料。A method for preparing a water-based ultra-thin fireproof coating for steel structures based on aluminum diethylphosphinate. Firstly, the flame retardant system and the flame retardant synergistic system are uniformly ground in a ball mill, passed through a 150-mesh sieve, and then added to the film-forming system. And add water, stir at high speed and disperse uniformly to obtain the water-based steel structure fireproof coating based on aluminum diethylphosphinate of the present invention with a solid content of 50-70%.
本发明一种基于二乙基次膦酸铝的水性超薄钢结构防火涂料应用于钢结构防火。The water-based ultra-thin steel structure fireproof coating based on aluminum diethylphosphinate of the invention is applied to steel structure fireproofing.
本发明与现有技术相比，具有以下有益效果：Compared with the prior art, the present invention has the following beneficial effects:
本发明所述的一种基于二乙基次膦酸铝的水性超薄钢结构防火涂料的阻燃体系中，创新性的采用二乙基次膦酸铝作为多聚磷酸铵膨胀型阻燃体系中的重要组分，使所述的防火涂料的燃烧炭层质量更好，耐火性能优异，耐久性和耐候性大大提升，而且本发明所述的基于二乙基次膦酸铝的水性超薄钢结构防火涂料的VOC含量很低，在生产和涂装过程以及使用过程中基本不会对人员产生危害、对环境产生污染。因此，本发明制备的基于二乙基次膦酸铝的水性超薄钢结构防火涂料具备在钢结构防火中的用途。In the flame retardant system of a water-based ultra-thin steel structure fire retardant coating based on aluminum diethylphosphinate according to the present invention, aluminum diethylphosphinate is innovatively used as the ammonium polyphosphate intumescent flame retardant system An important component in the fireproof coating, so that the quality of the burning charcoal layer of the fireproof coating is better, the fireproof performance is excellent, the durability and weather resistance are greatly improved, and the water-based ultra-thin film based on aluminum diethylphosphinate The VOC content of steel structure fire retardant coatings is very low, and it will basically not cause harm to personnel and pollution to the environment during the production, coating process and use process. Therefore, the water-based ultra-thin steel structure fireproof coating based on aluminum diethylphosphinate prepared by the present invention has the application in steel structure fireproofing.
具体实施方式Detailed ways
以下结合具体实施例对本发明作进一步的描述，但具体实施例并非是对本发明做任何限制。The present invention will be further described below in conjunction with specific examples, but the specific examples do not limit the present invention in any way.
实施例1Example 1
基于二乙基次膦酸铝的水性超薄钢结构防火涂料，其组成和重量百分数如下:Based on the water-based ultra-thin fireproof coating for steel structures based on aluminum diethylphosphinate, its composition and weight percentage are as follows:
①阻燃体系 55份① Flame retardant system 55 parts
其中： in:
②成膜体系 40份②Film-forming system 40 parts
其中： in:
③阻燃协效体系 5份③Flame retardant synergistic system 5 parts
二氧化钛 5份Titanium dioxide 5 parts
④水 60份④ 60 parts of water
先将55重量份的阻燃体系和5重量份的阻燃协效体系在球磨机中研磨均匀后过150目的筛，然后加入到40重量份的成膜体系中，并加入60重量份的水，高速搅拌分散均匀后即得到固含量为50％的本发明所述的基于二乙基次膦酸铝的水性钢结构防火涂料。First, 55 parts by weight of the flame retardant system and 5 parts by weight of the flame retardant synergistic system are ground uniformly in a ball mill and passed through a 150-mesh sieve, and then added to 40 parts by weight of the film-forming system and 60 parts by weight of water. After high-speed stirring and dispersing evenly, the water-based steel structure fireproof coating based on aluminum diethylphosphinate of the present invention with a solid content of 50% is obtained.
将上述制备的基于二乙基次膦酸铝的水性超薄钢结构防火涂料按GB14907‐2002《钢结构防火涂料性能测试》进行防火性能测试，测试结果为炭层膨胀倍率15，耐火时间90分钟。According to GB14907‐2002 "Steel Structure Fireproof Coating Performance Test", the waterborne ultra-thin steel structure fireproof coating based on aluminum diethylphosphinate prepared above was tested for fireproof performance. The test results showed that the expansion ratio of the carbon layer was 15, and the fire resistance time was 90 minutes. .
实施例2Example 2
基于二乙基次膦酸铝的水性超薄钢结构防火涂料，其组成和重量百分数如下:Based on the water-based ultra-thin fireproof coating for steel structures based on aluminum diethylphosphinate, its composition and weight percentage are as follows:
①阻燃体系 45份① Flame retardant system 45 parts
②成膜体系 45份②Film-forming system 45 parts
③阻燃协效体系 10份③Flame retardant synergistic system 10 parts
其中：埃洛石 7份Of which: Halloysite 7 parts
二氧化钛 3份3 parts titanium dioxide
④水 30份④30 parts of water
先将45重量份的阻燃体系和10重量份的阻燃协效体系在球磨机中研磨均匀后过150目的筛，然后加入到45重量份的成膜体系中，并加入30重量份的水，高速搅拌分散均匀后即得到固含量为60％的本发明所述的基于二乙基次膦酸铝的水性钢结构防火涂料。First, grind 45 parts by weight of the flame retardant system and 10 parts by weight of the flame retardant synergistic system in a ball mill to pass through a 150-mesh sieve, then add them to 45 parts by weight of the film-forming system, and add 30 parts by weight of water. After high-speed stirring and dispersing evenly, the water-based steel structure fireproof coating based on aluminum diethylphosphinate of the present invention with a solid content of 60% is obtained.
将上述制备的基于二乙基次膦酸铝的水性超薄钢结构防火涂料按GB14907‐2002《钢结构防火涂料性能测试》进行防火性能测试，测试结果为炭层膨胀倍率12，耐火时间98分钟。According to GB14907‐2002 "Steel Structure Fireproof Coating Performance Test", the waterborne ultra-thin steel structure fireproof coating based on aluminum diethylphosphinate prepared above was tested for fireproof performance. The test results showed that the expansion ratio of the carbon layer was 12, and the fire resistance time was 98 minutes. .
实施例3Example 3
基于二乙基次膦酸铝的水性超薄钢结构防火涂料，其组成和重量百分数如下:Based on the water-based ultra-thin fireproof coating for steel structures based on aluminum diethylphosphinate, its composition and weight percentage are as follows:
①阻燃体系 35份① Flame retardant system 35 parts
②成膜体系 50份②Film-forming system 50 parts
③阻燃协效体系 15份③Flame retardant synergistic system 15 parts
其中：二氧化硅 3份Of which: silicon dioxide 3 parts
二氧化钛 3份 3 parts titanium dioxide
高岭土 9份 Kaolin 9 parts
④水 8份④ 8 parts of water
先将35重量份的阻燃体系和15重量份的阻燃协效体系在球磨机中研磨均匀后过150目的筛，然后加入到50重量份的成膜体系中，并加入8重量份的水，高速搅拌分散均匀后即得到固含量为70％的本发明所述的基于二乙基次膦酸铝的水性钢结构防火涂料。First, grind 35 parts by weight of the flame retardant system and 15 parts by weight of the flame retardant synergistic system in a ball mill to pass through a 150-mesh sieve, then add them to 50 parts by weight of the film-forming system, and add 8 parts by weight of water. After high-speed stirring and dispersing evenly, the water-based steel structure fireproof coating based on aluminum diethylphosphinate of the present invention with a solid content of 70% can be obtained.
将上述制备的基于二乙基次膦酸铝的水性超薄钢结构防火涂料按GB14907‐2002《钢结构防火涂料性能测试》进行防火性能测试，测试结果为炭层膨胀倍率13，耐火时间110分钟。According to GB14907‐2002 "Steel Structure Fireproof Coating Performance Test", the waterborne ultra-thin steel structure fireproof coating based on aluminum diethylphosphinate prepared above was tested for fireproof performance. The test results showed that the expansion ratio of the carbon layer was 13, and the fire resistance time was 110 minutes. .
本发明的上述实施例仅仅是为清楚地说明本发明所作的举例，而并非是对本发明的实施方式的限定。对于所属领域的普通技术人员来说，在上述说明的基础上还可以做出其它不同形式的变化或变动。这里无需也无法对所有的实施方式予以穷举。凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本发明权利要求的保护范围之内。The above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, rather than limiting the implementation of the present invention. For those of ordinary skill in the art, other changes or changes in different forms can be made on the basis of the above description. It is not necessary and impossible to exhaustively list all the implementation manners here. All modifications, equivalent replacements and improvements made within the spirit and principles of the present invention shall be included within the protection scope of the claims of the present invention.
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