CN102417772B - Environment-friendly type steel structure building fireproof anticorrosion composite coating and preparation method thereof - Google Patents
Environment-friendly type steel structure building fireproof anticorrosion composite coating and preparation method thereof Download PDFInfo
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- CN102417772B CN102417772B CN2011102984618A CN201110298461A CN102417772B CN 102417772 B CN102417772 B CN 102417772B CN 2011102984618 A CN2011102984618 A CN 2011102984618A CN 201110298461 A CN201110298461 A CN 201110298461A CN 102417772 B CN102417772 B CN 102417772B
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Abstract
The invention discloses an environment-friendly type steel structure building fireproof anticorrosion composite coating which is obtained by compounding a fireproof coating and an anticorrosion coating. The fireproof coating comprises the following materials by weight ratio: 200 to 300 of deionized water, 5 to 20 of a dispersant, 10 to 30 of a film-forming additive, 1 to 5 of an antifoaming agent, 20 to 70 of titanium dioxide, 20 to 50 of chlorinated paraffin with a temperature of 70 DEG C, 200 to 350 of ammonium polyphosphate, 50 to 100 of melamine, 50 to 100 of dipentaerythritol, 30 to 100 of expandable graphite and 200 to 300 of acrylic acid emulsion. The anticorrosion coating specially used for the fireproof coating comprises the following materials by weight ratio: 128 of deionized water, 1 of a dispersant, 48 of a film-forming additive, 7 of an antifoaming agent, 9.5 of propylene glycol, 5 of a mildew inhibitor, 200 of titanium dioxide, 38 of fine sericite powder and 615 of emulsion. Compared to the prior art, the invention has the following advantage: successful implementation of the invention makes a breakthrough to the situation that fire protection and anticorrosion coating in a steel structure protection project are operated separately and enables the functions of fire protection and anticorrosion coating to be successfully merged into a same engineering project system.
Description
Technical field
The present invention relates to the complex technique of a kind of fire resistant coating and corrosion-inhibiting coating, specifically environment protection steel structure Building Fire Protection anticorrosive composite coating, and the preparation method of this composite coating; Make the effective combination of fire resistant coating and corrosion-inhibiting coating, neither affect fire resistant coating and meet the fire expansion, the performance fire protection function, make again the antiseptic property of corrosion-inhibiting coating self reach best complex technique.
Background technology
Existing steel construction protection technology, adopt the coating protection technology mostly.Adopt fireproof paint to apply the steel construction of protection; have that fire insulation performance is good, construction is not subjected to the restriction of steel construction geometrical body, generally do not need to add servicing unit, coating quality light, the plurality of advantages such as certain attractive, decorative effect is arranged, often become first-selected flameproof protection measure.
Developed country has just released steel-structure ultrathin type fireproof paint as far back as the initial stage seventies on market.There are German Herberts company, Britain Nullifine company, U.S. Altex company, PPG company, FCC company, Caboline company, the gloomy paint company of Japanese rattan, the good company of French atropic in famous producer.
Super-thin steel structure fire-proof paint in the market mainly contains the Water Base 38320 formed steel construction fireproof paints (water-soluble) of German Herberts company, and coating layer thickness 2.63mm, fire endurance are 63min; 38091 formed steel construction fireproof paints (solvent-borne type), coating layer thickness 2.42mm, fire endurance are 124min; The fire-resistant coating for steel structure (solvent-borne type) of Britain Nullifire company, coating layer thickness 2.24mm, fire endurance 106min; China's Sichuan super-thin steel structure fire-proof paint that fire research was developed since 1996, product have SCB (solvent-borne type), and coating layer thickness 2.69mm, fire endurance are 147min; LF (solvent-borne type) and L6 (solvent-borne type) coating layer thickness are respectively 2mm and 3mm, and fire endurance is respectively 94min and 90min; The SF (solvent-borne type) of Jiangsu Lan Ling company, coating layer thickness 2.07mm, ECB (water-soluble), coating layer thickness 1.6mm, fire endurance are respectively 150min and 44min.
Along with China is limiting more strictly organic volatile content aspect indoor coating, limiting the quantity of as 120g/L in newest standards GB18582-2008 " limits of harmful substances in the indoor decorating and refurnishing materials interior wall coating ".Hence one can see that, develops high solid, water base, no-solvent type steel construction protection coating, i.e. nontoxic, the free of contamination steel construction protection coating focus that will be the scientific worker.
In sum, the coating that can see on domestic market is in 3mm, and the fire-resistant coating for steel structure that fire endurance is greater than 90min is nearly all the solvent-borne type product.Although the external existing aqueous fire-proof coating product that surpasses 90min, resistance to water is very poor, and prices are rather stiff.The great majority of domestic project use at present are the solvent-borne type products, and the steel construction protection coating that has simultaneously the fire retardant anticorrosion double effects is not also seen product on market at home, has no report abroad yet.
Summary of the invention
The objective of the invention is for a kind of environment protection steel structure Building Fire Protection anticorrosive composite coating is provided, to solve the problems referred to above of prior art, fill up the market vacancy of fire retardant anticorrosion double effects steel construction protection coating.
Another object of the present invention is for the preparation method of this composite coating is provided.
Purpose of the present invention can be achieved through the following technical solutions.
A kind of environment protection steel structure Building Fire Protection anticorrosive composite coating, it is composited by fire resistant coating and corrosion-inhibiting coating two parts, and fire resistant coating comprises the material of following weight ratio:
Deionized water 200-300, dispersant 5-20, coalescents 10-30, defoamer 1-5, titanium dioxide 20-70,70 ℃ of chlorinated paraffin wax 20-50, ammonium polyphosphate 200-350, melamine 50-100, bipentaerythrite 50-100, expanded graphite 30-100, acrylic emulsion 200-300.
The corrosion-inhibiting coating that is exclusively used in above-mentioned fire resistant coating comprises the material of following weight ratio:
Deionized water 128, dispersant 1, coalescents 48, defoamer 7, propane diols 9.5, mould inhibitor 5, titanium dioxide 200, the thin mica powder 38 of thin,tough silk, blanc fixe 3.5, emulsion 615.
In fire resistant coating,
Described dispersant is the BYK-019 of Bi Ke company.
Described coalescents is two Texnaol that reach chemical industry.
Described defoamer is the B-199 of clearization company.
Described titanium dioxide is the R706 of E.I.Du Pont Company.
During described acrylic emulsion, concentration is: 45-50%.
In corrosion-inhibiting coating,
Described dispersant is the BYK-019 of Bi Ke company.
The two Texnaol that reach chemical industry of described coalescents.
Described defoamer is two K5 that reach chemical industry.
Described mould inhibitor is the WL-3 of following chemical industry.
Described titanium dioxide is B101.
The thin mica powder of described thin,tough silk is 1250 orders.
Described emulsion is a kind of in fluorine emulsion, Silicone acrylic emulsion and acrylic emulsion, its mass percent concentration is 45-55%, and wherein, during for fluorine emulsion, concentration is: 50-55%, during for Silicone acrylic emulsion, concentration is: 48-52%, during for acrylic emulsion, concentration is: 45-50%.
The preparation method of above-mentioned composite coating, concrete steps are:
(1) pre-dispersed process:
By water, dispersant, part defoamer, fire retardant, inorganic filler, pigment etc. disperse at a high speed (1200 ± 50 rev/mins) to become uniform slurry, and device therefor is the high speed dispersor of belt stirrer.
(2) grinding distribution process:
Slurry after pre-dispersed is carried out to levigate dispersion by various grinding distribution equipment, make it reach regulation fineness (being less than 100 μ m).
(3) paint process:
The slurry of levigate dispersion is added to synthetic emulsion, PH conditioning agent, residue defoamer, auxiliary rheological agents etc. under low rate mixing (700 ± 50 rev/mins), adjust pH value (7-7.5) and the viscosity (120ku of coating, the Stormer rotation viscometer), make it to reach the quality index requirement of regulation, generally in the mixed cylinder with agitator, carry out last discharging.
Corrosion-inhibiting coating is certain to bring impact to fire resistant coating, how to make the two effective combination, neither affects fire resistant coating and meets the fire expansion, brings into play effective fire-proof function, makes again the antiseptic property of corrosion-inhibiting coating self reach best.
The present invention adopts the general in the world expanded foamed system of P-C-N.The fire endurance of fire resistant coating is brought up to 90min, reach international advanced person, domestically leading level, the core technology key that rational expanded foamed system is this project, be related to the foaming effect of coating, fire endurance and the whole flameproof effect of product.That the present invention mainly adopts is fluorine-containing, silicon emulsion as the corrosion-inhibiting coating base-material fully to improve the antiseptic property of composite coating.Fire resistant coating presents orange peel shape or free shape situation because capillary difference can make to be coated in its surperficial anticorrosive paint, so compatibility between the two is particularly important.And the present invention selects fire resistant coating and the anticorrosive paint coupling that compatibility is good, make the coating that anticorrosive paint can be evenly good on fire resistant coating, make again corrosion-inhibiting coating can not affect the expanded foamed performance of fire resistant coating, make the fire retardant anticorrosion composite coating reach good overall performance.
The present invention is than prior art, and its beneficial effect is:
1, be the aqueous, environmental protective new and high technology, its fire endurance >=90min, be much higher than the 60min stipulated in standard GB/T 14907-2002 " fire-resistant coating for steel structure ", is in the world advanced level, fills up at home technological gap.
2, indoor ultrathin steel structure fireproof paint, fireproof paint special anti-corrosion finish all reach environmental-protecting performance index (operative norm GB18582-2008 " limits of harmful substances in the indoor decorating and refurnishing materials interior wall coating ")
3, the Corrosion Protection of corrosion-inhibiting coating reaches the index performance of I profile paint in JG/T 224-2007 " construction steel structure anticorrosive paint ".
4, the steel construction protection coating of anticorrosion double effects is not also seen product on market at home, has no report abroad yet.And the situation that in the steel structure protective engineering, flameproof protection and anticorrosive coating are fought separately has been broken in the successful implementation of this project, by both functions can success incorporate in an engineering project system.
The specific embodiment
Below in conjunction with specific embodiment, further set forth technical characterstic of the present invention.
1, the configuration of indoor ultrathin steel structure fireproof paint:
According to the deionized water in the above-mentioned raw materials formula, dispersant, coalescents, defoamer etc., progressively slowly add the powders such as titanium dioxide, ammonium polyphosphate, melamine, pentaerythrite to make slurry obtain fully disperseing to reach uniform state through grinding after pre-dispersed, slowly add again synthetic emulsion to be in harmonious proportion, add appropriate thickener to be in harmonious proportion after evenly evenly standby.
Table 1: the configuration of indoor ultrathin steel structure fireproof paint:
| Sequence number | Title material | Proportioning one | Proportioning two | Proportioning three |
| 1 | Deionized water | 250 | 220 | 200 |
| 2 | Dispersant B YK-019 | 8 | 12 | 14 |
| 3 | Coalescents Texnaol | 15 | 18 | 21 |
| 4 | Defoamer B-199 | 2 | 2 | 2 |
| 5 | Titanium dioxide R706 | 50 | 60 | 70 |
| 6 | 70 ℃ of chlorinated paraffin waxs | 50 | 50 | 50 |
| 7 | Ammonium polyphosphate | 240 | 220 | 200 |
| 8 | Melamine | 80 | 80 | 80 |
| 9 | Pentaerythrite | 80 | 80 | 80 |
| 10 | Expanded graphite | 50 | 60 | 70 |
| 11 | Acrylic emulsion | 220 | 260 | 300 |
2, the configuration of fireproof paint special anti-corrosion finish:
Deionized water, dispersant, coalescents, defoamer, auxiliary rheological agents etc. are progressively slowly added the powders such as titanium dioxide, mica powder, blanc fixe make slurry obtain fully disperseing to reach uniform state through grinding after pre-dispersed, slowly add synthetic emulsion to be in harmonious proportion, add appropriate thickener to be in harmonious proportion after evenly evenly standby.
Table 2: the configuration of fireproof paint special anti-corrosion finish:
| Sequence number | Title material | Proportioning one | Proportioning two | Proportioning three |
| 1 | Deionized water | 128 | 128 | 128 |
| 2 | Dispersant | 1(BYK-019) | 1(BYK-019) | 1(BYK-019) |
| 3 | Coalescents Texnaol | 48 | 48 | 48 |
| 4 | Defoamer K5 | 7 | 7 | 7 |
| 5 | Propane diols | 9.5 | 9.5 | 9.5 |
| 6 | Mould inhibitor WL-3 | 5 | 5 | 5 |
| 7 | Titanium dioxide (B101) | 200 | 200 | 200 |
| 8 | Thin mica powder 1250 orders of thin,tough silk | 38 | 38 | 38 |
| 9 | Blanc fixe | 3.5 | 3.5 | 3.5 |
| 10 | Emulsion | 615 (fluorine emulsions) | 615 (Silicone acrylic emulsions) | 615 (acrylic emulsions) |
The anticorrosion finish of the fireproof paint of embodiment 1-3 and special use is compound according to random fit, do following fire retardant anticorrosion performance test:
3, the decay resistance of composite coating:
To the fireproof paint of brushing twice again special anti-corrosion finish after specific thickness, the condition that reaches in required time carries out carrying out the decay resistance detection after maintenance by brushing indoor ultrathin steel structure fireproof paint on the steel plate that is defined in 7.5cm * 15cm of I profile paint in JG/T 224-2007 " construction steel structure anticorrosive paint ".Its testing result is:
Acid resistance (5% sulfuric acid): 96h is without extremely, qualified;
Resistance to salt water (3%NaCl): 120h is without extremely, qualified.
4, the preparation of fire retardant anticorrosion composite coating:
1) on the 140b standard that the is defined in steel I-beam according to standard GB/T 14907-2002 " fire-resistant coating for steel structure ", successively brush the above-mentioned indoor ultrathin steel structure fireproof paint prepared, thickness reaches 2 ± 0.2mm;
2) on coated fire resistant coating, press the fireproof paint of brushing twice again special anti-corrosion finish of the normal maintenance application time interval.
The gross thickness of above-mentioned two kinds of coatings be up to state standards in GB14907-2002 " fire-resistant coating for steel structure " regulation.According to the curing time in standard and condition, carry out maintenance.
5, the comprehensive fire endurance test of composite coating:
The large girder steel that above-mentioned maintenance is good carries out the fire endurance detection in Dujiang weir, Sichuan fire supervision inspection center of country, and the fire endurance time of its fire retardant anticorrosion coating is 96 minutes.
In sum the fire retardant anticorrosion composite coating not only in practice of construction reality feasible, and its antiseptic property and the fire protecting performance requirement that all can be up to state standards.
The fire prevention of construction steel structure in the market or anticorrosion be engineering independently separately, will fire prevention and anticorrosion two innovation point that the function effective integration is this project.Corrosion-inhibiting coating is certain to bring impact to fire resistant coating, how to make the two effective combination, neither affects fire resistant coating and meets the fire expansion, brings into play effective fire-proof function, makes again the antiseptic property of corrosion-inhibiting coating self reach best.
Exploitation aqueous environment protection steel structure fireproofing corrosion-inhibiting coating resist technology; fire endurance is increased to 90min; reach the performance of solvent-borne type fireproof paint; has simultaneously corrosion proof function preferably; realistic meaning is arranged very much; the demand for development that had both met environmental protection, can, by flameproof protection and the effective combination of anti-corrosion protection, solve the difficult problem of steel structure fireproofing anti-corrosion protection in the market again.
Claims (4)
1. environment protection steel structure Building Fire Protection anticorrosive composite coating, it is characterized in that: it is composited by fire resistant coating and corrosion-inhibiting coating two parts;
Fire resistant coating is comprised of the material of following weight ratio:
Deionized water 200-300, dispersant 5-20, coalescents 10-30, defoamer 1-5, titanium dioxide 20-70,70 ℃ of chlorinated paraffin wax 20-50, ammonium polyphosphate 200-350, melamine 50-100, bipentaerythrite 50-100, expanded graphite 30-100, acrylic emulsion 200-300;
The corrosion-inhibiting coating that is exclusively used in above-mentioned fire resistant coating is comprised of the material of following weight ratio:
Deionized water 128, dispersant 1, coalescents 48, defoamer 7, propane diols 9.5, mould inhibitor 5, titanium dioxide 200, the thin mica powder 38 of thin,tough silk, blanc fixe 3.5, emulsion 615;
In described fire resistant coating, described dispersant is BYK-019, and coalescents is Texnaol, and defoamer is B-199, and titanium dioxide is R706, and acrylic emulsion concentration is: 45-50%;
In described corrosion-inhibiting coating, described dispersant is BYK-019, and coalescents is Texnaol, and defoamer is K5, and mould inhibitor is WL-3, and titanium dioxide is B101, and the thin mica powder of thin,tough silk is 1250 orders, and emulsion is a kind of in fluorine emulsion, acrylic emulsion.
2. a kind of environment protection steel structure Building Fire Protection anticorrosive composite coating according to claim 1, it is characterized in that: in described corrosion-inhibiting coating, described acrylic emulsion is Silicone acrylic emulsion.
3. a kind of environment protection steel structure Building Fire Protection anticorrosive composite coating according to claim 1, it is characterized in that: in described corrosion-inhibiting coating, when described emulsion was fluorine emulsion, concentration was: 50-55%, when described emulsion was acrylic emulsion, concentration was: 45-50%.
4. a kind of environment protection steel structure Building Fire Protection anticorrosive composite coating according to claim 2, it is characterized in that: in described corrosion-inhibiting coating, when described emulsion was Silicone acrylic emulsion, concentration was: 48-52%.
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| CN102827519B (en) * | 2012-09-12 | 2015-12-09 | 山东长星集团有限公司 | A kind of flame retardant paint |
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| CN115305009B (en) * | 2022-08-15 | 2023-11-07 | 亚士创能科技(石家庄)有限公司 | Water-based ultrathin intumescent organic colorful fireproof coating and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5376705A (en) * | 1991-09-18 | 1994-12-27 | Transcontinental Marketing Group, Inc. | One coat protective system for a surface |
| CN1824716A (en) * | 2005-12-22 | 2006-08-30 | 北京首创纳米科技有限公司 | Aqueous environmental protection ultration expansion type steel structure fireproof paint and its preparation method |
| CN101402816A (en) * | 2008-11-04 | 2009-04-08 | 杭州传化涂料有限公司 | Watersoluble fluorine-carbon modified elastic paint for exterior wall of construction |
-
2011
- 2011-09-28 CN CN2011102984618A patent/CN102417772B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5376705A (en) * | 1991-09-18 | 1994-12-27 | Transcontinental Marketing Group, Inc. | One coat protective system for a surface |
| CN1824716A (en) * | 2005-12-22 | 2006-08-30 | 北京首创纳米科技有限公司 | Aqueous environmental protection ultration expansion type steel structure fireproof paint and its preparation method |
| CN101402816A (en) * | 2008-11-04 | 2009-04-08 | 杭州传化涂料有限公司 | Watersoluble fluorine-carbon modified elastic paint for exterior wall of construction |
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| CN102417772A (en) | 2012-04-18 |
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