CN101597159A - A kind of gypsum fire retardant coating - Google Patents
A kind of gypsum fire retardant coating Download PDFInfo
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- CN101597159A CN101597159A CNA2009100334251A CN200910033425A CN101597159A CN 101597159 A CN101597159 A CN 101597159A CN A2009100334251 A CNA2009100334251 A CN A2009100334251A CN 200910033425 A CN200910033425 A CN 200910033425A CN 101597159 A CN101597159 A CN 101597159A
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- gypsum
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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Abstract
The invention discloses a kind of is the frie retardant coating of agglutination material with the gypsum plaster.Comprise high strength gypsum, refractory materials and admixture.The consumption of described high strength gypsum is 30-50%, and the consumption of refractory materials is 48.5-67.8%, and the consumption of admixture is 1.5-2.2%, folding strength 〉=4.0MPa of two hours of high strength gypsum.Gypsum fire retardant coating of the present invention can be used for the surface fireproof layer of bamboo-wood structure building, concrete works and Steel Structure Work.Can not come off in 2 hours at 1000 ℃ of high temperature, flawless.Its energy consumption is low, production cost is the 1/2-1/3 of general inorganic fireproof coating; All material is nontoxic, harmless.On-the-spot making beating or mortar transport mixer transport, in-situ spraying or whitewash, and workability is good, does not have any pollution.With other existing frie retardant coating ratio, production cost reduces greatly, and the cost of manufacturing enterprise and application project is reduced, and profit increases greatly.
Description
Technical field
The present invention relates to the frie retardant coating that Communication and Transportation Engineerings such as a kind of construction work, civil air defense constructions and installations, subway, tunnel are often used, relating in particular to a kind of is the frie retardant coating of agglutination material with the gypsum plaster.
Background technology
Fire has become one of the most great human disaster, and various bamboo-wood structure buildings are inflammable buildings; Various concrete and Steel Structure Work are not explosions, are exactly to lose intensity and cave in the high temperature more than 300 ℃; Therefore, people develop multiple inorganic and organic fire prevention coating, spray, are coated in the surface of civil structure building, concrete and Steel Structure Work, and they are protected in fire, avoid or reduce the loss that fire causes.
The frie retardant coating kind is numerous, can be divided into inorganic type and organic type by its composition.The inorganic type frie retardant coating is to make base-material with inorganic salts, and the organic type frie retardant coating is then made base-material with natural or synthetical resin.Can be divided into water-soluble and solvent-borne type again by its dispersion medium; Also can be divided into into non-expansion type and expanded polystyrene veneer by its fire prevention mechanism; Also can be divided into facing type and structure-type by its functions of use; Traditional frie retardant coating uses object mainly can be divided into facing type and steel structure fire-proof paint two big classes according to it.The expanding fire-proof paint of the overwhelming majority is to utilize organic polymer to meet heat foamable on the market, delays the intensification of steel, protection steel member with the refractory insulating layer of expanded foamed formation.And non-expansion type is the uninflammability that relies on material, low heat conductivity etc., delays the intensification of steel, protection steel member.Non-expansion type frie retardant coating common on the market is a binding agent with soluble silicate and part resin mainly, is equipped with inorganic, lightweight refractory composition again.
Now introducing several organic and inorganic frie retardant coatings commonly used compares:
(1) facing expanding fire-proof paint
The A component
Two fluorine amine-urea-copolyoxymethylenes (base-material)---------------100 parts
Titanium dioxide (anatase titanium dioxide)-------------------30 parts
Antimonous oxide--------------------4 parts
Tetramethylolmethane--------------------6 parts
The B component
Phosphoric acid-------------------------------------------an amount of
Reference price-------------------------------------3200 yuan/ton
(2) trimeric cyanamide Precondensed UreaFormaldehyde Resin frie retardant coating
Trimeric cyanamide Precondensed UreaFormaldehyde Resin----------------------------20 parts
Sodium Silicofluoride----------------------------50 parts
Water------------------------------30 parts
Tetramethylolmethane----------------------------10 parts
Polyphosphoric acid amine------------------------------20 parts
Reference price-----------------------------3000 ± unit/ton
(3) expanded polystyrene veneer inorganic fireproof coating
Base-material (aluminium hydroxide, phosphoric acid, water)------------------40%
Composite flame-retardant agent---------------------25%
Aluminium sesquioxide---------------------5%
Titanium dioxide (R101)-----------------------4%
Precondensed UreaFormaldehyde Resin (industrial goods)------------------------5%
Urea (industrial goods)-------------------------6%
Softening agent (industrial goods)-----------------------5%
Water (tap water)------------------------10%
Reference price---------------------2800 yuan/ton
(4) uninflammability inorganic fireproof coating
Potassium silicate---------------------------------------42 parts
Expanded vermiculite------------------------------------10 parts
Glass powder---------------------------------------22 parts
Titanium dioxide----------------------------------------3 parts
Red iron oxide----------------------------------------3 parts
Condensation of aluminum phosphate---------------------------------------8 parts
Water----------------------------------------10 parts
Reference price--------------------------------------2500 ± unit/ton
From top frie retardant coating as can be seen: 1, how much contain formaldehyde, trimeric cyanamide, cyanogen, fluorochemical in the organic coating, they need conscientiously research to the influence of human body and environment; During burning, these organism will discharge some obnoxious flavoures, should be careful when therefore using.2, most of raw material all is more valuable, cannot regenerate, thereby their price is higher, and what have high reaches 3500 yuan/ton.
And in the frie retardant coating on " functional coating " book and market, people think that according to old viewpoint gypsum intensity is low, and are not water-fast, so do not see the report and the sale of gypsum fire retardant coating.
Summary of the invention
It is the frie retardant coating of agglutination material with the gypsum plaster that technical problem solved by the invention provides a kind of.
Technical scheme of the present invention is: a kind of gypsum fire retardant coating comprises high strength gypsum, refractory materials and admixture.The consumption of described high strength gypsum is 30-50%, and the consumption of refractory materials is 48.5-67.8%, and the consumption of admixture is 1.5-2.2%, folding strength 〉=4.0Mpa of two hours of high strength gypsum.
Refractory materials comprises ground blast furnace slag, fireclay, refractory cements, crystal whisker of gypsum, chrysotile, glass fibre, glass bead.Mullite and high quartz total content 〉=85% in the described ground blast furnace slag, fineness 200 orders, 200 mesh sieves tails over≤and 10%.
The consumption of described ground blast furnace slag is 0-40%, and the consumption of fireclay is that the consumption of 0-20%, refractory cements is that the consumption of 0-5%, crystal whisker of gypsum is that the consumption of 0-5%, chrysotile is that the consumption of 0-5%, glass fibre is that the consumption of 0-5%, glass bead is 10-15%.
Gypsum fire retardant coating of the present invention has utilized a large amount of renewable resourcess or industrial residue, and can satisfy every technical requirements of frie retardant coating, and its energy consumption is low, production cost is low, is the 1/2-1/3 of general frie retardant coating; All material is nontoxic, harmless.On-the-spot making beating sprays or whitewashes, and workability is good, does not have any pollution.With other existing frie retardant coating ratio, production cost reduces greatly, and the cost of manufacturing enterprise and application project is reduced, and profit increases greatly.
Embodiment
The selected renewable industry by-product gypsum of the present invention (desulfurated plaster, phosphogypsum, citric acid gypsum etc.) requires CaSO42H2O 〉=95%, through 150-160 ℃ of calcined dehydration, is processed into satisfactory high strength gypsum powder; In order to satisfy normal service requirements,, make frie retardant coating of the present invention with it and combinations such as a certain amount of other refractory materials and admixture.
Two hours folding strength 〉=4.0Mpa of the used high strength gypsum of the present invention, consumption is 30-50%.Mix a certain amount of refractory materials, comprise ground blast furnace slag, fireclay, refractory cements, crystal whisker of gypsum, chrysotile, glass fibre, glass bead, its total consumption is 48.5-67.8%; In gypsum fire retardant coating of the present invention: the consumption of ground blast furnace slag is 0-40%, wherein mullite and high quartz total content 〉=85%, fineness 200 orders, 200 mesh sieves tails over≤and 10%, being provided by Nanjing Mei Bao company, mainly is to increase material fire performance and water resistance; The consumption of fireclay is 0-20%, and main component is an alum clay, and boiler usefulness is bought back by local refractory Company, improves the coating fire performance; Refractory cements is high-alumina cement (aluminate cement) again, and consumption is 0-5%, is bought back by refractory Company, improves coating fire performance and early strength; Crystal whisker of gypsum increases frie retardant coating thermal and insulating performance, crack resistance and resistivity against fire; Chrysotile is good heat preserving and insulating material and fiber reinforced material, is supplied by Qinghai Mang Ya asbestos deposit.It can increase the strength of materials and thermal and insulating performance; Last two kinds of fiber dispersions are pretty good, and uniform distribution has guaranteed the even reliability of material, and consumption is 0-5%; Glass bead is mainly perforate or produce in Nanyang, closed pore foam and oxidize silicon Henan, improves the coating fire performance, reduces material unit weight, and consumption is 10-15%; Glass fibre is generally anti-alkali glass, can life-time service in the alkali environment.It increases frie retardant coating thermal and insulating performance, crack resistance and resistivity against fire, and consumption is the 0-5% of frie retardant coating.The consumption of admixture is 1.5-2.2%, and admixture commonly used has: retardant (Jmg-A is produced in Tangshan) guarantees that coating has the sufficient engineering time; Water reducer (Sm is produced in Jiangsu) guarantees that coating has good degree of mobilization, reduces the intensity that amount of water has also just increased coating; Its water soluble of tackifier (going up marine products PvA), the bonding strength of increase coating self and other material; The full outlet capacity that water-holding agent (Shanxi produce Mc) increases coating helps complete aquation of later stage, the water in the frie retardant coating by other material siphon away fast easy formation shrinkage crack then greatly reduce fire resistance; Defoamer (going up marine products Bx-832) non-expansion type facing fire retardant coating is equivalent to investment precoat, and must not there be pore on the surface, the bubble that defoamer forms in the time of can eliminating the coating making beating.In the selection of admixture: guarantee enough engineering times, increase bonding strength, increase fire resistance property, improve workability, reasonable price; Become desired pulvis frie retardant coating by the even dry blending of prescription then.
Specify the composition and the relevant technologies parameter of frie retardant coating of the present invention below with the form of form.
Table: frie retardant coating is formed and the relevant technologies parameter
| Embodiment | High strength gypsum % | Ground blast furnace slag % | Refractory cements % | Fireclay % | Crystal whisker of gypsum % | Chrysotile % | Glass fibre % | Glass bead % | Admixture % | Ultimate compression strength Mpa | Bonding strength Mpa | Coefficient of softening |
| 1 | 50 | 18.5 | 5 | 0 | 5 | 5 | 0 | 15 | 1.5 | ≥ 0.3 | ≥ 0.3 | 0.5-0.7 |
| 2 | 48 | 0 | 0 | 20 | 5 | 5 | 5 | 15 | 2 | ≥ 0.3 | ≥ 0.3 | 0.5-0.7 |
| 3 | 38 | 30 | 5 | 0 | 5 | 0 | 5 | 15 | 2 | ≥ 1.0 | ≥ 0.5 | 0.5-0.7 |
| 4 | 30 | 40 | 5 | 5 | 0 | 2.8 | 5 | 10 | 2.2 | ≥ 1.0 | ≥ 0.5 | 0.5-0.7 |
Gypsum fire retardant coating of the present invention can be used for the surface fireproof layer of bamboo-wood structure building, concrete works and Steel Structure Work.Can not come off in 2 hours at 1000 ℃ of high temperature, flawless, with existing frie retardant coating both domestic and external very big-difference is arranged.Gypsum fire retardant coating of the present invention has utilized a large amount of renewable resourcess or industrial residue, and can satisfy every technical requirements of frie retardant coating, and its energy consumption is low, production cost is the 1/2-1/3 of general inorganic fireproof coating; All material is nontoxic, harmless.On-the-spot making beating or mortar transport mixer transport, in-situ spraying or whitewash, and workability is good, does not have any pollution.With other existing frie retardant coating ratio, production cost reduces greatly, and the cost of manufacturing enterprise and application project is reduced, and profit increases greatly.
Claims (6)
1, a kind of gypsum fire retardant coating is characterized in that: comprise high strength gypsum, refractory materials and admixture.
2, gypsum fire retardant coating according to claim 1 is characterized in that: the consumption of described high strength gypsum is 30-50%, and the consumption of refractory materials is 48.5-67.8%, and the consumption of admixture is 1.5-2.2%.
3, gypsum fire retardant coating according to claim 1 and 2 is characterized in that: folding strength 〉=4.0Mpa of two hours of described high strength gypsum.
4, gypsum fire retardant coating according to claim 1 is characterized in that: described refractory materials comprises ground blast furnace slag, fireclay, refractory cements, crystal whisker of gypsum, chrysotile, glass fibre and glass bead.
5, gypsum fire retardant coating according to claim 4 is characterized in that: mullite and high quartz total content 〉=85% in the described ground blast furnace slag, fineness 200 orders, 200 mesh screen residues≤10%.
6, gypsum fire retardant coating according to claim 4; it is characterized in that: the consumption of described ground blast furnace slag is 0-40%, and the consumption of fireclay is that the consumption of 0-20%, refractory cements is that the consumption of 0-5%, crystal whisker of gypsum is that the consumption of 0-5%, chrysotile is that the consumption of 0-5%, glass fibre is that the consumption of 0-5%, glass bead is 10-15%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100334251A CN101597159A (en) | 2009-06-19 | 2009-06-19 | A kind of gypsum fire retardant coating |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100334251A CN101597159A (en) | 2009-06-19 | 2009-06-19 | A kind of gypsum fire retardant coating |
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| CN101597159A true CN101597159A (en) | 2009-12-09 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102093032A (en) * | 2010-12-24 | 2011-06-15 | 北京工业大学 | Preparation method of light refractory plate |
| CN102173659A (en) * | 2011-03-16 | 2011-09-07 | 李荣国 | Titanium ceramic heat-insulation material, and preparation method and application thereof |
| CN102173710A (en) * | 2011-02-23 | 2011-09-07 | 长沙归一建材科技有限公司 | Ecotypic-gypsum-based dry powder coating |
| CN112679184A (en) * | 2020-12-28 | 2021-04-20 | 鲁米科技(山东)有限公司 | Gypsum-based non-intumescent fire-retardant coating for steel structure |
-
2009
- 2009-06-19 CN CNA2009100334251A patent/CN101597159A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102093032A (en) * | 2010-12-24 | 2011-06-15 | 北京工业大学 | Preparation method of light refractory plate |
| CN102173710A (en) * | 2011-02-23 | 2011-09-07 | 长沙归一建材科技有限公司 | Ecotypic-gypsum-based dry powder coating |
| CN102173710B (en) * | 2011-02-23 | 2012-08-01 | 长沙归一建材科技有限公司 | Ecotypic-gypsum-based dry powder coating |
| CN102173659A (en) * | 2011-03-16 | 2011-09-07 | 李荣国 | Titanium ceramic heat-insulation material, and preparation method and application thereof |
| CN102173659B (en) * | 2011-03-16 | 2012-10-10 | 李荣国 | Titanium ceramic heat-insulation material, and preparation method and application thereof |
| CN112679184A (en) * | 2020-12-28 | 2021-04-20 | 鲁米科技(山东)有限公司 | Gypsum-based non-intumescent fire-retardant coating for steel structure |
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Application publication date: 20091209 |