CN102492323B - Ultra-thin steel structure fire-resistant coating material with multi-core structure - Google Patents
Ultra-thin steel structure fire-resistant coating material with multi-core structure Download PDFInfo
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- CN102492323B CN102492323B CN201110391177.5A CN201110391177A CN102492323B CN 102492323 B CN102492323 B CN 102492323B CN 201110391177 A CN201110391177 A CN 201110391177A CN 102492323 B CN102492323 B CN 102492323B
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- 238000000576 coating method Methods 0.000 title claims abstract description 52
- 239000011248 coating agent Substances 0.000 title claims abstract description 50
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 40
- 239000010959 steel Substances 0.000 title claims abstract description 40
- 239000000463 material Substances 0.000 title claims abstract description 15
- 230000009970 fire resistant effect Effects 0.000 title abstract description 21
- 230000002265 prevention Effects 0.000 claims description 67
- 239000003973 paint Substances 0.000 claims description 48
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 25
- 239000003795 chemical substances by application Substances 0.000 claims description 21
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 230000001680 brushing effect Effects 0.000 claims description 14
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 12
- 150000001875 compounds Chemical class 0.000 claims description 12
- 239000006185 dispersion Substances 0.000 claims description 12
- 230000008719 thickening Effects 0.000 claims description 12
- YUWBVKYVJWNVLE-UHFFFAOYSA-N [N].[P] Chemical compound [N].[P] YUWBVKYVJWNVLE-UHFFFAOYSA-N 0.000 claims description 11
- 238000002485 combustion reaction Methods 0.000 claims description 11
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 10
- 239000004408 titanium dioxide Substances 0.000 claims description 10
- 239000011787 zinc oxide Substances 0.000 claims description 10
- 239000003063 flame retardant Substances 0.000 claims description 9
- 239000010439 graphite Substances 0.000 claims description 9
- 229910002804 graphite Inorganic materials 0.000 claims description 9
- 239000003112 inhibitor Substances 0.000 claims description 9
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 8
- 235000019353 potassium silicate Nutrition 0.000 claims description 8
- 239000004925 Acrylic resin Substances 0.000 claims description 7
- 229920000178 Acrylic resin Polymers 0.000 claims description 7
- 239000000853 adhesive Substances 0.000 claims description 7
- 230000001070 adhesive effect Effects 0.000 claims description 7
- 229920003180 amino resin Polymers 0.000 claims description 7
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 6
- 239000003054 catalyst Substances 0.000 claims description 6
- 239000003822 epoxy resin Substances 0.000 claims description 6
- 229920000647 polyepoxide Polymers 0.000 claims description 6
- 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 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- 229920001807 Urea-formaldehyde Polymers 0.000 claims description 5
- GZCGUPFRVQAUEE-SLPGGIOYSA-N aldehydo-D-glucose Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C=O GZCGUPFRVQAUEE-SLPGGIOYSA-N 0.000 claims description 5
- 229910000416 bismuth oxide Inorganic materials 0.000 claims description 5
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 5
- 238000004581 coalescence Methods 0.000 claims description 5
- TYIXMATWDRGMPF-UHFFFAOYSA-N dibismuth;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Bi+3].[Bi+3] TYIXMATWDRGMPF-UHFFFAOYSA-N 0.000 claims description 5
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 5
- 229910000480 nickel oxide Inorganic materials 0.000 claims description 5
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 5
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 claims description 5
- 229920005989 resin Polymers 0.000 claims description 5
- 239000011347 resin Substances 0.000 claims description 5
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 5
- KKCBUQHMOMHUOY-UHFFFAOYSA-N sodium oxide Chemical compound [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 claims description 5
- 229910001948 sodium oxide Inorganic materials 0.000 claims description 5
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 5
- 239000004114 Ammonium polyphosphate Substances 0.000 claims description 4
- 239000004111 Potassium silicate Substances 0.000 claims description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 4
- 235000019826 ammonium polyphosphate Nutrition 0.000 claims description 4
- 229920001276 ammonium polyphosphate Polymers 0.000 claims description 4
- WSFSSNUMVMOOMR-UHFFFAOYSA-N formaldehyde Substances O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 4
- NNHHDJVEYQHLHG-UHFFFAOYSA-N potassium silicate Chemical compound [K+].[K+].[O-][Si]([O-])=O NNHHDJVEYQHLHG-UHFFFAOYSA-N 0.000 claims description 4
- 229910052913 potassium silicate Inorganic materials 0.000 claims description 4
- 229910052710 silicon Inorganic materials 0.000 claims description 4
- 239000010703 silicon Substances 0.000 claims description 4
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 4
- 239000000080 wetting agent Substances 0.000 claims description 4
- 238000012856 packing Methods 0.000 claims description 2
- 239000004794 expanded polystyrene Substances 0.000 claims 2
- 238000010276 construction Methods 0.000 abstract description 16
- 230000000694 effects Effects 0.000 abstract description 15
- 230000037452 priming Effects 0.000 abstract description 5
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 238000004079 fireproofing Methods 0.000 abstract description 3
- 238000002474 experimental method Methods 0.000 abstract description 2
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- 239000000779 smoke Substances 0.000 abstract 1
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- 229920000642 polymer Polymers 0.000 description 6
- ZRIUUUJAJJNDSS-UHFFFAOYSA-N ammonium phosphates Chemical compound [NH4+].[NH4+].[NH4+].[O-]P([O-])([O-])=O ZRIUUUJAJJNDSS-UHFFFAOYSA-N 0.000 description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 238000004132 cross linking Methods 0.000 description 2
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Abstract
The invention relates to an ultra-thin steel structure fire-resistant coating material with a multi-core structure. The ultra-thin steel structure fire-resistant coating material is characterized by comprising three parts, i.e. an expandable fire-resistant antirust priming coat at high temperature, an expandable fire-resistant intermediate coat when contacted to fire and a fire-resistant finishing coat. In actual construction, at least one layer of fire-resistant antirust priming coat with a high-temperature expanding function, at least one layer of intermediate coat with an expanding function when contacted to fire and at least one layer of decorative finishing coat with flame retarding and smokeless performance are coated; the priming coat, the intermediate coat and the finishing coat are formed by compounding organic and inorganic materials; when a fire occurs, the intermediate coat and the finishing coat exert synergistic reaction, and thus, an effect that the priming coat carries out fire resisting and heat insulation and the finishing coat carries out inflame retarding and smoke purifying, is achieved. With the adoption of the ultra-thin steel structure fire-resistant coating material with the multi-core structure, provided by the invention, a fire-resistant coating with thinner coating thickness, longer fireproofing time limit and better decorative effect can be formed on a steel structure, and proved by experiments, the fireproofing standards of GB14907-2002 are fully met.
Description
Technical field
The present invention relates to building decoration field, particularly relate to a kind of anti-fiery coating of super-thin steel structure with coenocytism.
Background technology
Along with increasing gradually of China's steel construction and member thing and further carrying out and implementing of the fire service law > > of the < < People's Republic of China (PRC), steel structure fire-proof paint obtains applying more and more widely.Press the classification of GB 14907-2002 < < steel structure fire-proof paint general technical specifications > >, even if its coat-thickness of super-thin steel structure fire-proof paint also will reach 2mm, by existing high solid coating, calculate, its construction also will be brushed 8-10 all over just reaching specific thickness, this has brought sizable difficulty to construction, has affected the construction speed of buildings.Meanwhile, steel construction now not only requires the fire resistance of frie retardant coating, also required its decorative effect and Environmental Factors, and on market, existing frie retardant coating is only focused on its fire-proof function conventionally, and has ignored the decorative effect of material simultaneously.How to design and a kind ofly have thinner coat-thickness, have the higher fire-resistant time limit, the steel structure fire-proof paint of the decorative effect simultaneously having had becomes design concept of the present invention and design key.
Summary of the invention
The present invention solves that prior art steel structure fire-proof paint need to be brushed often, inaesthetic problem, a kind of compound steel structure fireproofing decorative paint that fire prevention rust-proofing primer, fire prevention floating coat paint and fire-retardant decorative finish paint form that has is provided, its total coating is thinner, and the fire-resistant time limit can reach the requirement of GB 14907-2002 equally.
A kind of anti-fiery coating of super-thin steel structure with coenocytism, three parts by independent packing form: fire prevention rust-proofing primer, the fire prevention floating coat paint of meeting fire expansion and fire prevention finish paint, described fire prevention rust-proofing primer contains inorganic adhesive and zinc powder, fire prevention floating coat paint contains expansion type flame retardant and aminoresin, and fire prevention finish paint contains Hydroxylated acrylic resin or epoxy resin and is dehydrated into C catalyst.
Described inorganic adhesive is a kind of or its combination in potassium silicate, water glass, silicon sol.
The composition of described fire prevention rust-proofing primer and weight percent are:
Inorganic adhesive: 12-15%
Zinc powder: 20-50%
Zinc oxide: 2-5%
Titanium oxide: 5-10%
Nickel oxide: 1-3%
Bismuth oxide: 1-5%
Sodium oxide: 0.2-0.5%
Silicon oxide: 5-10%
Aluminum oxide: 2-8%
Dispersion agent: 0-0.8%
Thickening leveling agent: 0-0.6%
Water adds to 100%.
Described expansibility flame-proof agent is the compound phosphor nitrogen combustion inhibitor of expansile graphite, and described aminoresin is terpolycyantoamino-formaldehyde resin and/or urea-formaldehyde resin.
Composition and the weight percent thereof of described fire prevention floating coat paint are:
Aminoresin: 10-50%
The compound phosphor nitrogen combustion inhibitor of expansile graphite: 15-35%
Titanium dioxide: 10-20%
Talcum powder: 5-10%
Dispersion agent: 0-5%
Thickening material: 0-3%
Water adds to 100%
The described C catalyst that is dehydrated into is ammonium polyphosphate.
The composition of described fire prevention finish paint and percentage composition thereof are:
Hydroxylated acrylic resin or epoxy resin: 15-30%
Ammonium polyphosphate: 10-20%
Titanium dioxide: 10-20%
Zinc oxide: 5-10%
Calcium carbonate: 10-15%
Dispersion agent: 0-2%
Wetting agent: 0-2%
Film coalescence aid: 0.5-2%
Thickening material: 0-2.5%
Sterilant: 0-1%
Water adds to 100%.
A fire protection coating structure, is formed by the above-mentioned Fire-resistance of Steel Structures coating brushing with coenocytism, it is characterized in that: its structure is followed successively by from inside to outside: fire prevention rust-proofing primer layer, fire prevention floating coat and fire prevention top coat layer.
The thickness of fire prevention rust-proofing primer layer is 0.1-0.2mm, and the thickness of fire prevention floating coat is 1.2-2.0mm, and the thickness of fire prevention top coat layer is 0.1-0.3mm.
The application of above-mentioned coating, fire prevention rust-proofing primer coating one time, after dry, coating fire prevention floating coat paint is one to five time, coating fire prevention finish paint 1-3 time after dry, the thickness of above-mentioned fire prevention rust-proofing primer coating is 0.1-0.2mm, the thickness of fire prevention floating coat paint is 1.2-2.0mm, and the coating thickness of fire prevention finish paint is 0.1-0.3mm.
Known according to GB GB/T 9978-1988 Indoor environment fire standard heating curve (Fig. 1), at the different times of fire, its temperature of combustion is different.Accordingly, in different fire period, i.e. in different temperature periods, adopt different fire protection coatings to act on accordingly, to reach the protection to steel basic unit as far as possible for a long time.So, can reach protection layer by layer, the technical characterstic of depth defense.This is theory action of the present invention basis.According to above-mentioned theory, the anti-fiery coating of super-thin steel structure of the present invention at least one deck have the fire prevention rust-proofing primer of high-temperature expansion function, at least one deck have meet the fire prevention floating coat paint of fiery expansion function and at least one deck there is the fire-retardant smokeless decoration finish paint three-decker constituent of self body, after like this present invention being divided at least three layers to be coated on steel construction, just can realize the fire prevention of bottom high temperature, floating coat fire-proof and thermal-insulation, the fire-retardant object of finish paint.Fire prevention rust-proofing primer of the present invention, adopt inorganic adhesive, such as potassium silicate, water glass, silicon sol etc., coordinate inorganic zinc powder, low temperature glass powder and whipping agent, make fire prevention rust-proofing primer, this priming paint is as the first layer of steel structure surface, be characterized in: there is excellent rust-proof effect, simultaneously body is that inorganic materials forms, and self difficult combustion be the more important thing is when coatingsurface reaches more than 550-600 ℃, coating starts to expand, form melt foaming vitreum, thereby isolated heat is further delivered to steel surface, plays the effect of high temperature fp.Fire prevention floating coat paint of the present invention, the second layer as steel structure surface, adopt expansibility flame-proof agent to serve as flame-retardant composition, the compound phosphor nitrogen combustion inhibitor of expansile graphite that the present invention adopts is the compound form of expansile graphite powder and phosphorus-nitrogen series anti-flaming material intercalation (referring to patent CN200510012018.4), is characterized in meeting fire expansion, carbonization rapidly; Ultralow thermal conductivity coefficient, isolated heat conduction; Stability Analysis of Structures, prevent from drip hanging down; Expansile graphite powder and phosphorus-nitrogen series anti-flaming material intercalation are compound, halogen volatile matter, more environmental protection.Fire prevention floating coat of the present invention, its another feature is to adopt aminoresin to make filmogen, and as terpolycyantoamino-formaldehyde resin, urea-formaldehyde resin etc., itself does not fire, meeting fire expands, not producing toxic gas, is membrane-forming agent, is again desirable whipping agent, but main is the filmogen generation crosslinking reaction of its active amino functional group when high temperature and in finish paint, form cross-linked network supra polymer, prevent that the organic binder in finish paint from decomposing release micro-molecular gas, thereby avoided the generation of flue gas.This coating starts to expand when surface temperature reaches 250 ℃, and isolated heat, further to bottom transmission, plays the effect of cryogenic fireproof.Fire prevention finish paint of the present invention, the acrylic resin of employing hydroxyl functional group or epoxy resin are as filmogen, and interpolation is dehydrated into the formations such as C catalyst (as polymer phosphate ammonium) and other color stuffings.Be characterized in meeting fire and floating coat generation crosslinking reaction, generate ultrahigh polymer molecule, and becoming under the effect of C catalyst, fast rapid-result carbon, does not produce small molecules volatilization flue gas, thereby not only can be fire-retardant, and cigarette only.Fire prevention finish paint of the present invention, because the addition of flame-retardant composition is little, does not affect every physical and chemical index of coating, can be mixed with different colours, thereby has very high decorative effect.
The present invention has the anti-fiery coating of super-thin steel structure of coenocytism, by above-mentioned three coatings that part forms, on steel construction, can form and there is thinner coat-thickness, there is the higher fire-resistant time limit, the fire protection coating of the decorative effect simultaneously having had, experiment confirms, when the total build of the anti-fiery coating of the present invention reaches 1.68mm, its fire-resistant time limit reaches 2 hours, meets the refractory standard of GB14907-2002 completely.
Accompanying drawing explanation
Fig. 1: fire heating-up time/thetagram
Embodiment
The preparation of the compound phosphor nitrogen combustion inhibitor of expansile graphite refers to patent CN200510012018.4, and all the other raw materials are commercially available conventional raw material, and during preparation, adopting weight unit is Kg.
Embodiment 1:
Fire prevention rust-proofing primer:
Potassium silicate resin: 12
Zinc powder: 50
Zinc oxide: 2
Titanium oxide: 5
Nickel oxide: 3
Bismuth oxide: 1
Sodium oxide: 0.2
Silicon oxide: 10
Aluminum oxide: 2
Dispersion agent: 0.8
Water: add to 100
Fire prevention floating coat paint:
Terpolycyantoamino-formaldehyde resin: 50
The compound phosphor nitrogen combustion inhibitor of expansile graphite: 15
Titanium dioxide: 10
Talcum powder: 8
Dispersion agent: 5
Thickening material: 3
Water: add water to 100
Fire prevention finish paint:
Hydroxylated acrylic resin: 15
Polymer phosphate ammonium: 20
Titanium dioxide: 20
Zinc oxide: 8
Calcium carbonate: 12
Film coalescence aid: 2
Water: in right amount to 100
Experimental example: practice of construction example, being coated with used is prepared coating in embodiment 1.
Prime coat: brushing fire prevention rust-proofing primer one time, build 0.15mm.
Floating coat: brushing fire prevention floating coat paint 3-4 time, total build 1.6mm.
Top coat layer: brushing fire prevention finish paint 2 times, total build 0.20mm
Amount to build: 1.95mm
The fire-resistant time limit: 2 hours (GB14907-2002)
Experimental result shows: the anti-fiery coating of super-thin steel structure that the present invention has a coenocytism can form on steel construction to be had thinner coat-thickness, have the higher fire-resistant time limit, the fire protection coating of the decorative effect simultaneously having had, and meet the refractory standard of GB14907-2002 completely.
The present embodiment prime coat is 580 ℃ of expansions.Floating coat is 220 ℃ of expansions.
Embodiment 2:
Fire prevention rust-proofing primer:
Water glass resin: 15
Zinc powder: 20
Zinc oxide: 3
Titanium oxide: 10
Nickel oxide: 1
Bismuth oxide: 5
Sodium oxide: 0.5
Silicon oxide: 8
Aluminum oxide: 8
Dispersion agent: 0.4
Thickening leveling agent: 0.6
Water: add to 100
Fire prevention floating coat paint:
Urea-formaldehyde resin: 10
The compound phosphor nitrogen combustion inhibitor of expansile graphite: 35
Titanium dioxide: 20
Talcum powder: 5
Water: add to 100
Fire prevention finish paint:
Epoxy resin: 30
Polymer phosphate ammonium: 10
Titanium dioxide: 10
Zinc oxide: 10
Calcium carbonate: 10
Dispersion agent: 2
Wetting agent: 2
Film coalescence aid: 0.5
Thickening material: 2.5
Sterilant: 1
Water: add in right amount 100
Prepared coating in coating embodiment 2, carries out practice of construction.
Prime coat: brushing fire prevention rust-proofing primer 1 time, build 0.1mm.
Floating coat: brushing fire prevention floating coat paint 4-6 time, total build 2.0mm.
Top coat layer: brushing fire prevention finish paint 3 times, total build 0.30mm
Amount to build: 2.40mm
The fire-resistant time limit: 3 hours (GB14907-2002)
Experimental result shows: the anti-fiery coating of super-thin steel structure that the present invention has a coenocytism can form on steel construction to be had thinner coat-thickness, have the higher fire-resistant time limit, the fire protection coating of the decorative effect simultaneously having had, and meet the refractory standard of GB14907-2002 completely.
The present embodiment prime coat is 560 ℃ of expansions.Floating coat is 250 ℃ of expansions.
Embodiment 3:
Fire prevention rust-proofing primer:
Silicon sol: 13
Zinc powder: 35
Zinc oxide: 5
Titanium oxide: 7
Nickel oxide: 2
Bismuth oxide: 4
Sodium oxide: 0.3
Silicon oxide: 5
Aluminum oxide: 5
Thickening leveling agent: 0.2
Water: add to 100
Fire prevention floating coat paint:
Urea-formaldehyde resin: 30
The compound phosphor nitrogen combustion inhibitor of expansile graphite: 20
Titanium dioxide: 10
Talcum powder: 10
Dispersion agent: 3
Thickening material: 2
Water: add to 100
Fire prevention finish paint:
Hydroxylated acrylic resin: 20
Polymer phosphate ammonium: 15
Titanium dioxide: 15
Zinc oxide: 5
Calcium carbonate: 15
Dispersion agent: 1
Wetting agent: 1
Film coalescence aid: 1
Thickening material: 1
Sterilant: 1
Water: add to 100
Prepared coating in coating embodiment 3, carries out practice of construction.
Prime coat: brushing fire prevention rust-proofing primer 1 time, build 0.1mm.
Floating coat: brushing fire prevention floating coat paint 4-6 time, total build 2.0mm.
Finish paint: brushing fire prevention finish paint 1 time, total build 0.10mm
Amount to build: 2.20mm
The fire-resistant time limit: 2.5 hours (GB14907-2002)
Experimental result shows: the anti-fiery coating of super-thin steel structure that the present invention has a coenocytism can form on steel construction to be had thinner coat-thickness, have the higher fire-resistant time limit, the fire protection coating of the decorative effect simultaneously having had, and meet the refractory standard of GB14907-2002 completely.
The present embodiment prime coat is 550 ℃ of expansions.Floating coat is 250 ℃ of expansions.
Embodiment 4:
Prepared coating in coating embodiment 3, carries out practice of construction.
1, prime coat: brushing fire prevention rust-proofing primer 1 time, build 0.18mm.
Floating coat: brushing fire prevention floating coat paint 4-6 time, total build 1.2mm.
Top coat layer: brushing fire prevention finish paint 3 times, total build 0.30mm
Amount to build: 1.68mm
The fire-resistant time limit: 2 hours (GB14907-2002)
Experimental result shows: the anti-fiery coating of super-thin steel structure that the present invention has a coenocytism can form on steel construction to be had thinner coat-thickness, have the higher fire-resistant time limit, the fire protection coating of the decorative effect simultaneously having had, and meet the refractory standard of GB14907-2002 completely.
The present embodiment prime coat is 600 ℃ of expansions.Floating coat is 250 ℃ of expansions.
Claims (8)
1. the anti-fiery coating of super-thin steel structure with coenocytism, three parts by independent packing form: fire prevention rust-proofing primer, the fire prevention floating coat paint of meeting fire expansion and fire prevention finish paint, described fire prevention rust-proofing primer contains inorganic adhesive and zinc powder, fire prevention floating coat paint contains expansion type flame retardant and aminoresin, and fire prevention finish paint contains Hydroxylated acrylic resin or epoxy resin and is dehydrated into C catalyst; Described inorganic adhesive is a kind of or its combination in potassium silicate, water glass, silicon sol, and described aminoresin is terpolycyantoamino-formaldehyde resin and/or urea-formaldehyde resin.
2. the anti-fiery coating of super-thin steel structure with coenocytism according to claim 1, the composition of described fire prevention rust-proofing primer and weight percent are:
Inorganic adhesive: 12-15%
Zinc powder: 20-50%
Zinc oxide: 2-5%
Titanium oxide: 5-10%
Nickel oxide: 1-3%
Bismuth oxide: 1-5%
Sodium oxide: 0.2-0.5%
Silicon oxide: 5-10%
Aluminum oxide: 2-8%
Dispersion agent: 0-0.8%
Thickening leveling agent: 0-0.6%
Water adds to 100%.
3. the anti-fiery coating of super-thin steel structure with coenocytism according to claim 1, described expansion type flame retardant is the compound phosphor nitrogen combustion inhibitor of expanded polystyrene veneer graphite.
4. the anti-fiery coating of super-thin steel structure with coenocytism according to claim 3, composition and the weight percent thereof of described fire prevention floating coat paint are:
Aminoresin: 10-50%
The compound phosphor nitrogen combustion inhibitor of expanded polystyrene veneer graphite: 15-35%
Titanium dioxide: 10-20%
Talcum powder: 5-10%
Dispersion agent: 0-5%
Thickening material: 0-3%
Water adds to 100%.
5. the anti-fiery coating of super-thin steel structure with coenocytism according to claim 1, described in to be dehydrated into C catalyst be ammonium polyphosphate.
6. the anti-fiery coating of super-thin steel structure with coenocytism according to claim 5, the composition of described fire prevention finish paint and percentage composition thereof are:
Hydroxylated acrylic resin or epoxy resin: 15-30%
Ammonium polyphosphate: 10-20%
Titanium dioxide: 10-20%
Zinc oxide: 5-10%
Calcium carbonate: 10-15%
Dispersion agent: 0-2%
Wetting agent: 0-2%
Film coalescence aid: 0.5-2%
Thickening material: 0-2.5%
Sterilant: 0-1%
Water adds to 100%.
7. a fire protection coating structure, is formed by the arbitrary anti-fiery coating brushing of super-thin steel structure with coenocytism of claim 1-6, it is characterized in that: its structure is followed successively by from inside to outside: fire prevention rust-proofing primer layer, fire prevention floating coat and fire prevention top coat layer.
8. fire protection coating structure according to claim 7, the thickness of the rust-proofing primer layer of wherein preventing fires is 0.1-0.2mm, and the thickness of fire prevention floating coat is 1.2-2.0mm, and the thickness of fire prevention top coat layer is 0.1-0.3mm.
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