CN103205143A - Inorganic fire-prevention rust-prevention coating for steel structures and preparation method thereof - Google Patents
Inorganic fire-prevention rust-prevention coating for steel structures and preparation method thereof Download PDFInfo
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Abstract
The invention discloses an inorganic fire-prevention rust-prevention coating for steel structures and a preparation method thereof. The coating is a mixture of powder and colloid. The weight ratio of power to colloid is 1:(0.8-1.2). The colloid is potassium metasilicate. The powder is prepared from the following components in percentage by weight: 5-40% of magnesium mountain powder, 5-40% of talcum powder, 4-35% of silica powder and 4-25% of silicon aluminium powder. The granularity of the magnesium mountain powder is 2500-6500 meshes, the granularity of the talcum powder is 2000-6000 meshes, the granularity of the silica powder is 3000-8000 meshes, and the granularity of the silicon aluminium powder is 600-2000 meshes. According to the preparation method of the inorganic fire-prevention rust-prevention coating for steel structures, provided by the invention, the powder and the colloid are mixed uniformly. The inorganic fire-prevention rust-prevention coating for steel structures has good high-temperature-resistant performance and good rust-prevention effect.
Description
Technical field
The present invention relates to technical field of coatings, be specifically related to a kind of steel construction inorganic fire rust proof paint and preparation method thereof.
Background technology
Steel structure fire-proof paint generally adopts the organic fire-resisting resin at present, is equipped with the back-fire relief filler and makes, and can produce toxic gas in production and construction, influences the healthy of workman, and under the normality, this type of organic fire prevention coating also has the part residual gas and discharges.Particularly when fire takes place, more can produce toxic gas, and organic resin has combustion-supporting effect, it does not reach the fire-proof function of actual requirement.
For solving the problem of above toxic gas, worked out a series of aqueous fire-proof coating in the prior art, but fire resistance is relatively poor.And need the organic rust-inhibiting paint of spray one deck earlier before frie retardant coating uses, though rust-inhibiting paint is antirust, do not prevent fires, rust-inhibiting paint is more combustion-supporting than organic fire prevention coating, therefore, when running into fire, does not fundamentally reach the fp requirement.And the organic rust preventing lacquer has denseer pungency, not environmental protection.
Summary of the invention
The objective of the invention is to overcome above shortcoming, provide a kind of resistance to elevated temperatures good, steel construction inorganic fire rust proof paint of favorable rust preventing effect and preparation method thereof.
Technical scheme of the present invention is:
A kind of steel construction inorganic fire rust proof paint, described coating are mixed by powder and colloid and form, and the weight ratio of described powder and colloid is 1:0.8-1.2; Described colloid is potassium silicate, and described powder is made into by weight percentage by following composition: magnesite powder: 5-40%, and the granularity of described magnesite powder is the 2500-6500 order; Talcum powder: 5-40%, described talcous granularity is the 2000-6000 order; Ground silica: 4-35%, the granularity of described ground silica is the 3000-8000 order; Aluminum silicon powder: 4-25%, the granularity of described aluminum silicon powder is the 600-2000 order.
Further, described powder is made into by weight percentage by following composition: magnesite powder: 30-40%, and the granularity of described magnesite powder is the 4000-6500 order; Talcum powder: 25-35%, described talcous granularity is the 3000-5000 order; Ground silica: 15-25%, the granularity of described ground silica is the 4000-6000 order; Aluminum silicon powder: 10-20%, the granularity of described aluminum silicon powder is the 1250-2000 order.
Further, MgO content 〉=99% in the described magnesite powder, SiO in the described talcum powder
2Content 〉=60%, SiO in the ground silica
2Content 〉=98%, SiO in the described aluminum silicon powder
2Content 〉=50%.
Further, the modulus scope of described potassium silicate is 1.0-3.3, and concentration is the 38-50 degree Beaume.
A kind of preparation method of steel construction inorganic fire rust proof paint, described preparation method's step is as follows:
A, the described powder of claim 1 and colloid are mixed in proportion;
B, the mixture among the step a is stirred, form the yellow colloid of ropy milk.
Steel construction inorganic fire rust proof paint provided by the invention and preparation method thereof has following advantage:
1, steel construction inorganic fire rust proof paint provided by the invention, resistance to elevated temperatures is good.Steel construction inorganic fire rust proof paint provided by the invention is made up of powder and colloid mixing, and the weight ratio of described powder and colloid is 1:0.8-1.2; Described colloid is potassium silicate, and described powder is made into by weight percentage by following composition: magnesite powder: 5-40%, and the granularity of described magnesite powder is the 2500-6000 order; Talcum powder: 5-40%, described talcous granularity is the 2000-6000 order; Ground silica: 4-35%, the granularity of described ground silica is the 3000-8000 order; Aluminum silicon powder: 4-25%, the granularity of described aluminum silicon powder is the 600-2000 order.Wherein, the main component of magnesite powder is magnesium oxide, and magnesium oxide has the fireinsulation performance of height; Talcous main component is Magnesium Silicate q-agent, is generally fine and close bulk, foliated lamellar, radial, fibrous agrregate, has oilness, anti-ly sticks, helps stream, resistivity against fire, resistance to acid etc.; The main component of ground silica is silicon-dioxide, is the silicates mineral that a kind of quality is hard, wear-resisting, chemical property is stable, has high melt point; Aluminum silicon powder is chain synusia shape crystal formation, has the strong alkali-acid resistance performance, and high temperature resistant degree can reach 1750 ℃.Various powder materials are uniformly dispersed compact internal structure with after colloid silicic acid potassium mixes, intermolecular structure is survivable, and the top layer of coating forms fine and close glazed layer uniformly, prevents that heat is passed to the coating nexine, therefore, fundamentally solve the fire resistance of coating.According to detection, steel construction inorganic fire rust proof paint provided by the invention, high temperature resistant degree can reach 1420-1500 ℃.
2, steel construction inorganic fire rust proof paint provided by the invention, rust-proof effect can be good.Corrosion of metal is mainly galvanic corrosion, when metal be placed in the aqueous solution or moist atmosphere in, the metallic surface can form a kind of microbattery, also claim corrosion cell, the formation reason of corrosion cell mainly is because airborne moisture has been adsorbed in the metallic surface, form water membrane, thereby make CO2 in the air, SO2, NO2 etc. are dissolved in this layer moisture film, form electrolyte solution, and it is always impure to be immersed in this layer solution metal, as industrial iron and steel, be actually alloy, be outside the deironing, also contain graphite, cementite (Fe3C) and other metal and impurity, their great majority do not have ironwork to sprinkle.The anode of the corrosion cell of Xing Chenging is iron like this, and negative electrode is impurity, because iron closely contacts with impurity, makes corrosion constantly carry out.
Steel construction inorganic fire rust proof paint provided by the invention, as colloid, the powder composition of dissolution of coatings, potassium silicate are through inside and outside curing with potassium silicate, and the skin of coating forms SiO
2(H
2O)
nEnamel.But O
2, CO
2, H
2O still can infiltrate from micropore, starting stage of Gu Huaing particularly, and more potassium silicate is enriched in the coating, potassium silicate runs into the O that infiltration comes
2, CO
2, H
2Hydrolysis reaction will take place in O, and reaction equation is as follows:
The light current of water from:
K
2SiO
3Ionization in water: K
2SiO
3=2K
++ SiO
3 2-
Silicate generation hydrolysis:
At first, the silicate hydrolysis reaction absorbs a large amount of water, makes galvanic corrosion lose solution environmental.Secondly, it makes OH
-Concentration raises, thereby causes the ionization equilibrium of water to move to left, and H+ quantity reduces, so strong basicity in the potassium silicate genus.Under alkaline environment, CO
2Be neutralized O after the dissolving
2Also be difficult to and iron generation galvanic corrosion.Form one thus and stop O dynamically
2, CO
2, H
2The protective layer that O contacts with the steel layer, namely usually said negatively charged ion is antirust, O
2, CO
2, H
2These materials of O are far from arriving the steel layer and are just reacted away fully.Therefore, inorganic fire rust proof paint provided by the invention is applied in the industrial production, can absorb the portion C O that produces in the industrial production
2Gas has the effect that purifies air.
Simultaneously, potassium silicate belongs to alkalimetal silicate, and energy and iron, aluminium effect generate insoluble silicate, and at the internal layer of coating, potassium silicate generates meagre (below one micron) of one deck and tough and tensile molecular film in the metallic surface.This film has very excellent characteristic, can prevent contacting of negatively charged ion and dissolved oxygen in metallic surface and the water, thereby can prevent the generation of burning corrosion and galvanic corrosion.
Therefore, steel construction inorganic fire rust proof paint provided by the invention, rust-proof effect can be good.
3, steel construction inorganic fire rust proof paint provided by the invention, environmental protection, nontoxic.Steel construction inorganic fire rust proof paint provided by the invention, composition is nontoxic inorganics, does not contain radioactive substance, can not produce toxic gas when production, construction, normality, presence of fire, "dead" pollution after the coating, thoroughly environmental protection.
4, steel construction inorganic fire rust proof paint provided by the invention, use cost is low.Steel construction inorganic fire rust proof paint provided by the invention has the antirust function of fire prevention, in using technology, can save independent anti-corrosion treatment process one, simplifies technical process; And steel construction inorganic fire rust proof paint provided by the invention, in use, coat-thickness is smaller or equal to 3mm, belong to ultrathin inorganic paint, when namely preventing fires antirust processing, the usage quantity of coating is few, thereby has also further reduced the cost of the antirust processing of steel structure fireproofing.
5, steel construction inorganic fire rust proof paint provided by the invention, have exquisiteness, evenly, aesthetic feeling such as plumpness, can require be mixed with multiple color according to difference simultaneously, and do not influence the antirust function of its fire prevention.
6, steel construction inorganic fire rust proof paint provided by the invention and preparation method thereof, the raw material of coating is inorganics, and preparation technology only need mix raw material stirring and get final product, and preparation technology is simple, and energy consumption is little.
Embodiment
To the technical scheme in the embodiment of the invention be clearly and completely described below, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
Embodiment 1
Steel construction inorganic fire rust proof paint is made up of powder and colloid mixing, and wherein, colloid is potassium silicate, and the weight ratio of powder and colloid is 1:0.8; Powder is made into (gross weight is 10Kg) by weight percentage by following composition:
| Component | The magnesite powder | Talcum powder | Ground silica | Aluminum silicon powder |
| Weight (kg) | 0.5 | 4 | 3 | 2.5 |
| Weight percent (%) | 5 | 40 | 30 | 25 |
Wherein, the granularity of magnesite powder is 2500 orders, MgO content 〉=98%; Talcous granularity is 2000 orders, SiO
2Content 〉=59%; The granularity of ground silica is 3000 orders, SiO
2Content 〉=98%; The granularity of aluminum silicon powder is 600 orders, SiO
2Content 〉=50%.The granularity of each powder composition is little, and easier dispersion makes it form fine and close structure in coating.
According to the weight of powder, take by weighing the potassium silicate colloid of 8Kg, the modulus scope of potassium silicate is 1.0-3.3, concentration is 38 degree Beaume, and potassium silicate is mixed with above-mentioned powder, is dispersed into the yellow colloid of fine and smooth ropy milk uniformly with high speed dispersor.Dispersion machine is stirrer, and stir speed (S.S.) is 200-500r/min, and stir speed (S.S.) is big, and dispersion effect is good.
During use, can in the coating of above-mentioned dispersion, add the resistant to elevated temperatures pigment of a spot of acid-fast alkali-proof according to different environments for use, be made into the fire prevention rust proof paint of different colours.Because the add-on of pigment is few, do not influence the fire prevention rustless property of coating.
Steel construction inorganic fire rust proof paint provided by the invention during construction, can be selected to spray, the mode of roller coating, brushing; In handling the steel structure fireproofing anti-corrosive technology, can save independent anti-corrosion treatment process one, simplify technical process.
Above-mentioned steel construction inorganic fire rust proof paint is sprayed on the joist steel, and coating thickness is 3mm, carries out the fire resistance test, after testing, the inorganic fire rust proof paint of present embodiment, high temperature resistant temperature can reach 1420 ℃.
Above-mentioned steel construction inorganic fire rust proof paint is carried out the rustless property test, and testing method and result are as follows:
1, normal experiment
1., 1 meter long joist steel eliminated rust fully with steel brush becomes naked steel, at the inorganic fire rust proof paint of a face spraying present embodiment prescription of joist steel, coating thickness is 3mm, its lap all is exposed in the air, this sample is called A; In kind three of sample preparations again are called B, C and D;
2., sample A is placed indoor the observation, the A sample was at second day, and the part of coating does not begin to get rusty, and the speed of a few days ago getting rusty is fast, and is slack-off then, after two months exposed part rust entirely almost.To be coated with the sharp steel shovel of heavily fortified point and be coated with laminated coating and scoop up, observe exposed steel bottom, not find rust staining and rusty stain;
3., sample B is placed outdoor the observation, the part of swabbing did not begin to get rusty at second day yet, and experience is also all got rusty after two months and formed thick rust.With steel shovel coating is rooted out, the naked steel that is covered in below the coating does not see that the rusty stain rust staining is arranged, and only isolated edge 0.5mm place has rusty stain to infiltrate;
2, accelerate experiment
1., sample C is placed the moist warm little secret room of steam (temperature is 20-30 ℃, and humidity is 80%-95%), and middle strong illumination is arranged.Exposed part is got rusty fully, root out coating with steel shovel then and observe, not find that the naked steel face of coating cover part has the rusty stain rust staining;
2., each face of sample D is comprised the one side of seal coat, all spray accelerated corrosion (the pH value is 5.0-6.5) with diluted acid, place outdoor open-air continuation corrosion (external temperature is 25-32 ℃) then, after the week, exposed part all gets rusty.Root out coating with steel shovel, not finding to cover the steel face has the rust staining rusty stain.
Embodiment 2
Steel construction inorganic fire rust proof paint is made up of powder and colloid mixing, and wherein, colloid is potassium silicate, and the weight ratio of powder and colloid is 1:1; Powder is made into (gross weight is 10Kg) by weight percentage by following composition:
| Component | The magnesite powder | Talcum powder | Ground silica | Aluminum silicon powder |
| Weight (kg) | 40 | 32 | 4 | 24 |
| Weight percent (%) | 40 | 32 | 4 | 24 |
Wherein, the granularity of magnesite powder is 3000 orders, MgO content 〉=99%; Talcous granularity is 6000 orders, SiO
2Content 〉=60%; The granularity of ground silica is 4000 orders, SiO
2Content 〉=98%; The granularity of aluminum silicon powder is 650 orders, SiO
2Content 〉=50%.The granularity of each powder composition is little, and easier dispersion makes it form fine and close structure in coating.
According to the weight of powder, take by weighing the potassium silicate colloid of 10Kg, the modulus scope of potassium silicate is 1.0-3.3, and concentration is 40 degree Beaume, and potassium silicate mixes with above-mentioned powder, is dispersed into the yellow colloid of fine and smooth ropy milk uniformly with high speed dispersor.
During use, can in the coating of above-mentioned dispersion, add the resistant to elevated temperatures pigment of a spot of acid-fast alkali-proof according to different environments for use, be made into the fire prevention rust proof paint of different colours.Because the add-on of pigment is few, do not influence the fire prevention rustless property of coating.
Steel construction inorganic fire rust proof paint provided by the invention during construction, can be selected to spray, the mode of roller coating, brushing; In handling the steel structure fireproofing anti-corrosive technology, can save independent anti-corrosion treatment process one, simplify technical process.
On channel-section steel, coat-thickness is 2mm with the roller coating of above-mentioned steel construction inorganic fire rust proof paint, carries out the fire resistance test, after testing, the inorganic fire rust proof paint of present embodiment, high temperature resistant temperature can reach 1450 ℃.
Above-mentioned steel construction inorganic fire rust proof paint is carried out the rustless property test, and testing method and result are as follows:
1, normal experiment
1., 1 meter long joist steel eliminated rust fully with steel brush becomes naked steel, at the inorganic fire rust proof paint of a face spraying present embodiment prescription of joist steel, coating thickness is 2mm, its lap all is exposed in the air, this sample is called A; In kind three of sample preparations again are called B, C and D;
2., sample A is placed indoor the observation, the A sample was at second day, and the part of coating does not begin to get rusty, and the speed of a few days ago getting rusty is fast, and is slack-off then, after two months exposed part rust entirely almost.To be coated with the sharp steel shovel of heavily fortified point and be coated with laminated coating and scoop up, observe exposed steel bottom, not find rust staining and rusty stain;
3., sample B is placed outdoor the observation, the part of swabbing did not begin to get rusty at second day yet, and experience is also all got rusty after two months and formed thick rust.With steel shovel coating is rooted out, the naked steel that is covered in below the coating does not see that the rusty stain rust staining is arranged.
2, accelerate experiment
1., sample C is placed the moist warm little secret room of steam (temperature is 25 ℃, and humidity is 85%), and middle strong illumination is arranged.Exposed part is got rusty fully, root out coating with steel shovel then and observe, not find that the naked steel face of coating cover part has the rusty stain rust staining;
2., each face of sample D is comprised the one side of seal coat, all spray accelerated corrosion (the pH value is 5.0-6.5) with diluted acid, place outdoor open-air continuation corrosion (external temperature is 32 ℃) then, after the week, exposed part all gets rusty.Root out coating with steel shovel, not finding to cover the steel face has the rust staining rusty stain.
Embodiment 3
Steel construction inorganic fire rust proof paint is made up of powder and colloid mixing, and wherein, colloid is potassium silicate, and the weight ratio of powder and colloid is 1:0.9; Powder is made into (gross weight is 10Kg) by weight percentage by following composition:
| Component | The magnesite powder | Talcum powder | Ground silica | Aluminum silicon powder |
| Weight (kg) | 4 | 3.2 | 0.4 | 2.4 |
| Weight percent (%) | 40 | 32 | 4 | 24 |
Wherein, the granularity of magnesite powder is 5000 orders, MgO content 〉=99%; Talcous granularity is 3000 orders, SiO
2Content 〉=60%; The granularity of ground silica is 6000 orders, SiO
2Content 〉=98%; The granularity of aluminum silicon powder is 1300 orders, SiO
2Content 〉=50%.The granularity of each powder composition is little, and easier dispersion makes it form fine and close structure in coating.
According to the weight of powder, take by weighing the potassium silicate colloid of 9Kg, the modulus scope of potassium silicate is 1.0-3.3, and concentration is 45 degree Beaume, and potassium silicate mixes with above-mentioned powder, is dispersed into the yellow colloid of fine and smooth ropy milk uniformly with high speed dispersor.
During use, can in the coating of above-mentioned dispersion, add the resistant to elevated temperatures pigment of a spot of acid-fast alkali-proof according to different environments for use, be made into the fire prevention rust proof paint of different colours.Because the add-on of pigment is few, do not influence the fire prevention rustless property of coating.
Steel construction inorganic fire rust proof paint provided by the invention during construction, can be selected to spray, the mode of roller coating, brushing; In handling the steel structure fireproofing anti-corrosive technology, can save independent anti-corrosion treatment process one, simplify technical process.
Above-mentioned steel construction inorganic fire rust proof paint is brushed on steel construction, and coat-thickness is 2.5mm, carries out the fire resistance test, after testing, the inorganic fire rust proof paint of present embodiment, high temperature resistant temperature can reach 1430 ℃.
Above-mentioned steel construction inorganic fire rust proof paint is carried out the rustless property test, testing method when coat-thickness is 2.5mm is identical with embodiment 1, in accelerated test, the condition of the little secret room of steam that the residing humidity of sample C is warm is: temperature is 20 ℃, and humidity is 80%; The residing outdoor open-air condition of sample D is: 25 ℃ of temperature.Test result is: among sample A, B, C, the D, the naked steel that is covered in below the coating does not see that the rusty stain rust staining is arranged.
Embodiment 4
Steel construction inorganic fire rust proof paint is made up of powder and colloid mixing, and wherein, colloid is potassium silicate, and the weight ratio of powder and colloid is 1:1.1; Powder is made into (gross weight is 10Kg) by weight percentage by following composition:
| Component | The magnesite powder | Talcum powder | Ground silica | Aluminum silicon powder |
| Weight (kg) | 3 | 2.5 | 2.5 | 2 |
| Weight percent (%) | 30 | 25 | 25 | 20 |
Wherein, the granularity of magnesite powder is 6500 orders, MgO content 〉=99%; Talcous granularity is 5000 orders, SiO
2Content 〉=60%; The granularity of ground silica is 5000 orders, SiO
2Content 〉=98%; The granularity of aluminum silicon powder is 2000 orders, SiO
2Content 〉=50%.The granularity of each powder composition is little, and easier dispersion makes it form fine and close structure in coating.Wherein, aluminum silicon powder is the kaolin form, helps to improve material dispersed, and then improves the structure in the coating.
According to the weight of powder, take by weighing the potassium silicate colloid of 11Kg, the modulus scope of potassium silicate is 1.0-3.3, and concentration is 48 degree Beaume, and potassium silicate mixes with above-mentioned powder, is dispersed into the yellow colloid of fine and smooth ropy milk uniformly with high speed dispersor.
During use, can in the coating of above-mentioned dispersion, add the resistant to elevated temperatures pigment of a spot of acid-fast alkali-proof according to different environments for use, be made into the fire prevention rust proof paint of different colours.Because the add-on of pigment is few, do not influence the fire prevention rustless property of coating.
On steel construction, coat-thickness is 1mm with the roller coating of above-mentioned steel construction inorganic fire rust proof paint, carries out the fire resistance test, after testing, the inorganic fire rust proof paint of present embodiment, high temperature resistant temperature can reach 1500 ℃.
Above-mentioned steel construction inorganic fire rust proof paint is carried out the rustless property test, testing method when coat-thickness is 1mm is identical with embodiment 1, in accelerated test, the condition of the little secret room of steam that the residing humidity of sample C is warm is: temperature is 30 ℃, and humidity is 95%; The residing outdoor open-air condition of sample D is: 28 ℃ of temperature.Test result is: among sample A, B, C, the D, the naked steel that is covered in below the coating does not see that the rusty stain rust staining is arranged.
Embodiment 5
Steel construction inorganic fire rust proof paint is made up of powder and colloid mixing, and wherein, colloid is potassium silicate, and the weight ratio of powder and colloid is 1:1.2; Powder is made into (gross weight is 10Kg) by weight percentage by following composition:
| Component | The magnesite powder | Talcum powder | Ground silica | Aluminum silicon powder |
| Weight (kg) | 1.5 | 3.9 | 2.8 | 1.8 |
| Weight percent (%) | 15 | 39 | 28 | 18 |
Wherein, the granularity of magnesite powder is 4000 orders, MgO content 〉=99%; Talcous granularity is 2500 orders, SiO
2Content 〉=60%; The granularity of ground silica is 7000 orders, SiO
2Content 〉=98%; The granularity of aluminum silicon powder is 1600 orders, SiO
2Content 〉=50%.The granularity of each powder composition is little, and easier dispersion makes it form fine and close structure in coating.
According to the weight of powder, take by weighing the potassium silicate colloid of 12Kg, the modulus scope of potassium silicate is 1.0-3.3, and concentration is 50 degree Beaume, and potassium silicate mixes with above-mentioned powder, is dispersed into the yellow colloid of fine and smooth ropy milk uniformly with high speed dispersor.
During use, can in the coating of above-mentioned dispersion, add the resistant to elevated temperatures pigment of a spot of acid-fast alkali-proof according to different environments for use, be made into the fire prevention rust proof paint of different colours.Because the add-on of pigment is few, do not influence the fire prevention rustless property of coating.
Above-mentioned steel construction inorganic fire rust proof paint is sprayed on the steel construction, and coat-thickness is 2.2mm, carries out the fire resistance test, after testing, the inorganic fire rust proof paint of present embodiment, high temperature resistant temperature can reach 1460 ℃.
Above-mentioned steel construction inorganic fire rust proof paint is carried out the rustless property test, testing method when coat-thickness is 2.2mm is identical with embodiment 1, in accelerated test, the condition of the little secret room of steam that the residing humidity of sample C is warm is: temperature is 26 ℃, and humidity is 82%; The residing outdoor open-air condition of sample D is: 26 ℃ of temperature.Test result is: among sample A, B, C, the D, the naked steel that is covered in below the coating does not see that the rusty stain rust staining is arranged.
Embodiment 6
Steel construction inorganic fire rust proof paint is made up of powder and colloid mixing, and wherein, colloid is potassium silicate, and the weight ratio of powder and colloid is 1:1.2; Powder is made into (gross weight is 10Kg) by weight percentage by following composition:
| Component | The magnesite powder | Talcum powder | Ground silica | Aluminum silicon powder |
| Weight (kg) | 3.5 | 3.5 | 2 | 1 |
| Weight percent (%) | 35 | 35 | 20 | 10 |
Wherein, the granularity of magnesite powder is 4000 orders, MgO content 〉=99%; Talcous granularity is 3000 orders, SiO
2Content 〉=60%; The granularity of ground silica is 4000 orders, SiO
2Content 〉=98%; The granularity of aluminum silicon powder is 1600 orders, SiO
2Content 〉=50%.The granularity of each powder composition is little, and easier dispersion makes it form fine and close structure in coating.Wherein, aluminum silicon powder is the kaolin form, helps to improve material dispersed, and then improves the structure in the coating.
According to the weight of powder, take by weighing the potassium silicate colloid of 12Kg, the modulus scope of potassium silicate is 1.0-3.3, and concentration is 42 degree Beaume, and potassium silicate mixes with above-mentioned powder, is dispersed into the yellow colloid of fine and smooth ropy milk uniformly with high speed dispersor.
During use, can in the coating of above-mentioned dispersion, add the resistant to elevated temperatures pigment of a spot of acid-fast alkali-proof according to different environments for use, be made into the fire prevention rust proof paint of different colours.Because the add-on of pigment is few, do not influence the fire prevention rustless property of coating.
Above-mentioned steel construction inorganic fire rust proof paint is brushed on steel construction, and coat-thickness is 1.5mm, carries out the fire resistance test, after testing, the inorganic fire rust proof paint of present embodiment, high temperature resistant temperature can reach 1490 ℃.
Above-mentioned steel construction inorganic fire rust proof paint is carried out the rustless property test, testing method when coat-thickness is 1.3mm is identical with embodiment 1, in accelerated test, the condition of the little secret room of steam that the residing humidity of sample C is warm is: temperature is 29 ℃, and humidity is 88%; The residing outdoor open-air condition of sample D is: 27 ℃ of temperature.Test result is: among sample A, B, C, the D, the naked steel that is covered in below the coating does not see that the rusty stain rust staining is arranged.
Embodiment 7
Steel construction inorganic fire rust proof paint is made up of powder and colloid mixing, and wherein, colloid is potassium silicate, and the weight ratio of powder and colloid is 1:1; Powder is made into (gross weight is 10Kg) by weight percentage by following composition:
| Component | The magnesite powder | Talcum powder | Ground silica | Aluminum silicon powder |
| Weight (kg) | 3 | 3.4 | 3.2 | 0.4 |
| Weight percent (%) | 30 | 34 | 32 | 4 |
Wherein, the granularity of magnesite powder is 3500 orders, MgO content 〉=99%; Talcous granularity is 5000 orders, SiO
2Content 〉=60%; The granularity of ground silica is 3500 orders, SiO
2Content 〉=98%; The granularity of aluminum silicon powder is 800 orders, SiO
2Content 〉=50%.The granularity of each powder composition is little, and easier dispersion makes it form fine and close structure in coating.
According to the weight of powder, take by weighing the potassium silicate colloid of 10Kg, the modulus scope of potassium silicate is 1.0-3.3, and concentration is 46 degree Beaume, and potassium silicate mixes with above-mentioned powder, is dispersed into the yellow colloid of fine and smooth ropy milk uniformly with high speed dispersor.
During use, can in the coating of above-mentioned dispersion, add the resistant to elevated temperatures pigment of a spot of acid-fast alkali-proof according to different environments for use, be made into the fire prevention rust proof paint of different colours.Because the add-on of pigment is few, do not influence the fire prevention rustless property of coating.
On steel construction, coat-thickness is 3mm with the roller coating of above-mentioned steel construction inorganic fire rust proof paint, carries out the fire resistance test, after testing, the inorganic fire rust proof paint of present embodiment, high temperature resistant temperature can reach 1440 ℃.
Above-mentioned steel construction inorganic fire rust proof paint is carried out the rustless property test, testing method when coat-thickness is 3mm is identical with embodiment 1, in accelerated test, the condition of the little secret room of steam that the residing humidity of sample C is warm is: temperature is 24 ℃, and humidity is 87%; The residing outdoor open-air condition of sample D is: 28 ℃ of temperature.Test result is: among sample A, B, C, the D, the naked steel that is covered in below the coating does not see that the rusty stain rust staining is arranged.
Embodiment 8
Steel construction inorganic fire rust proof paint is made up of powder and colloid mixing, and wherein, colloid is potassium silicate, and the weight ratio of powder and colloid is 1:1.1; Powder is made into (gross weight is 10Kg) by weight percentage by following composition:
| Component | The magnesite powder | Talcum powder | Ground silica | Aluminum silicon powder |
| Weight (kg) | 2.7 | 3.8 | 1.2 | 2.3 |
| Weight percent (%) | 27 | 38 | 12 | 23 |
Wherein, the granularity of magnesite powder is 5500 orders, MgO content 〉=99%; Talcous granularity is 4500 orders, SiO
2Content 〉=60%; The granularity of ground silica is 8000 orders, SiO
2Content 〉=98%; The granularity of aluminum silicon powder is 1600 orders, SiO
2Content 〉=50%.The granularity of each powder composition is little, and easier dispersion makes it form fine and close structure in coating.
According to the weight of powder, take by weighing the potassium silicate colloid of 11Kg, the modulus scope of potassium silicate is 1.0-3.3, and concentration is 47 degree Beaume, and potassium silicate mixes with above-mentioned powder, is dispersed into the yellow colloid of fine and smooth ropy milk uniformly with high speed dispersor.
Above-mentioned steel construction inorganic fire rust proof paint is sprayed on the steel construction, and coat-thickness is 2.7mm, carries out the fire resistance test, after testing, the inorganic fire rust proof paint of present embodiment, high temperature resistant temperature can reach 1455 ℃.
Above-mentioned steel construction inorganic fire rust proof paint is carried out the rustless property test, testing method when coat-thickness is 2.7mm is identical with embodiment 1, in accelerated test, the condition of the little secret room of steam that the residing humidity of sample C is warm is: temperature is 27 ℃, and humidity is 89%; The residing outdoor open-air condition of sample D is: 31 ℃ of temperature.Test result is: among sample A, B, C, the D, the naked steel that is covered in below the coating does not see that the rusty stain rust staining is arranged.
Embodiment 9
Steel construction inorganic fire rust proof paint is made up of powder and colloid mixing, and wherein, colloid is potassium silicate, and the weight ratio of powder and colloid is 1:1.1; Powder is made into (gross weight is 10Kg) by weight percentage by following composition:
| Component | The magnesite powder | Talcum powder | Ground silica | Aluminum silicon powder |
| Weight (kg) | 3.8 | 1.6 | 2.4 | 2.2 |
| Weight percent (%) | 38 | 16 | 24 | 22 |
Wherein, the granularity of magnesite powder is 3500 orders, MgO content 〉=99%; Talcous granularity is 4000 orders, SiO
2Content 〉=60%; The granularity of ground silica is 4500 orders, SiO
2Content 〉=98%; The granularity of aluminum silicon powder is 1300 orders, SiO
2Content 〉=50%.The granularity of each powder composition is little, and easier dispersion makes it form fine and close structure in coating.
According to the weight of powder, take by weighing the potassium silicate colloid of 11Kg, the modulus scope of potassium silicate is 1.0-3.3, and concentration is 39 degree Beaume, and potassium silicate mixes with above-mentioned powder, is dispersed into the yellow colloid of fine and smooth ropy milk uniformly with high speed dispersor.
Above-mentioned steel construction inorganic fire rust proof paint is brushed on steel construction, and coat-thickness is 1.9mm, carries out the fire resistance test, after testing, the inorganic fire rust proof paint of present embodiment, high temperature resistant temperature can reach 1465 ℃.
Above-mentioned steel construction inorganic fire rust proof paint is carried out the rustless property test, testing method when coat-thickness is 1.9mm is identical with embodiment 1, in accelerated test, the condition of the little secret room of steam that the residing humidity of sample C is warm is: temperature is 23 ℃, and humidity is 93%; The residing outdoor open-air condition of sample is: 26 ℃ of temperature.Test result is: among sample A, B, C, the D, the naked steel that is covered in below the coating does not see that the rusty stain rust staining is arranged.
Embodiment 10
Steel construction inorganic fire rust proof paint is made up of powder and colloid mixing, and wherein, colloid is potassium silicate, and the weight ratio of powder and colloid is 1:0.9; Powder is made into (gross weight is 10Kg) by weight percentage by following composition:
| Component | The magnesite powder | Talcum powder | Ground silica | Aluminum silicon powder |
| Weight (kg) | 4 | 3 | 1.5 | 1.5 |
| Weight percent (%) | 40 | 30 | 15 | 15 |
Wherein, the granularity of magnesite powder is 5500 orders, MgO content 〉=99%; Talcous granularity is 4000 orders, SiO
2Content 〉=60%; The granularity of ground silica is 6000 orders, SiO
2Content 〉=98%; The granularity of aluminum silicon powder is 1100 orders, SiO
2Content 〉=50%.The granularity of each powder composition is little, and easier dispersion makes it form fine and close structure in coating.Wherein, aluminum silicon powder is the kaolin form, helps to improve material dispersed, and then improves the structure in the coating.
According to the weight of powder, take by weighing the potassium silicate colloid of 9Kg, the modulus scope of potassium silicate is 1.0-3.3, and concentration is 41 degree Beaume, and potassium silicate mixes with above-mentioned powder, is dispersed into the yellow colloid of fine and smooth ropy milk uniformly with high speed dispersor.
On steel construction, coat-thickness is 1.2mm with the roller coating of above-mentioned steel construction inorganic fire rust proof paint, carries out the fire resistance test, after testing, the inorganic fire rust proof paint of present embodiment, high temperature resistant temperature can reach 1495 ℃.
Above-mentioned steel construction inorganic fire rust proof paint is carried out the rustless property test, testing method when coat-thickness is 1.2mm is identical with embodiment 1, in accelerated test, the condition of the little secret room of steam that the residing humidity of sample C is warm is: temperature is 30 ℃, and humidity is 94%; The residing outdoor open-air condition of sample D is: 31 ℃ of temperature.Test result is: among sample A, B, C, the D, the naked steel that is covered in below the coating does not see that the rusty stain rust staining is arranged.
Embodiment 11
Steel construction inorganic fire rust proof paint is made up of powder and colloid mixing, and wherein, colloid is potassium silicate, and the weight ratio of powder and colloid is 1:0.8; Powder is made into (gross weight is 10Kg) by weight percentage by following composition:
| Component | The magnesite powder | Talcum powder | Ground silica | Aluminum silicon powder |
| Weight (kg) | 4 | 2 | 1.8 | 2.2 |
| Weight percent (%) | 40 | 20 | 18 | 22 |
Wherein, the granularity of magnesite powder is 4500 orders, MgO content 〉=99%; Talcous granularity is 3500 orders, SiO
2Content 〉=60%; The granularity of ground silica is 5500 orders, SiO
2Content 〉=98%; The granularity of aluminum silicon powder is 900 orders, SiO
2Content 〉=50%.The granularity of each powder composition is little, and easier dispersion makes it form fine and close structure in coating.
According to the weight of powder, take by weighing the potassium silicate colloid of 8Kg, the modulus scope of potassium silicate is 1.0-3.3, and concentration is 43 degree Beaume, and potassium silicate mixes with above-mentioned powder, is dispersed into the yellow colloid of fine and smooth ropy milk uniformly with high speed dispersor.
Above-mentioned steel construction inorganic fire rust proof paint is sprayed on the steel construction, and coat-thickness is 2.5mm, carries out the fire resistance test, after testing, the inorganic fire rust proof paint of present embodiment, high temperature resistant temperature can reach 1470 ℃.
Above-mentioned steel construction inorganic fire rust proof paint is carried out the rustless property test, testing method when coat-thickness is 2.5mm is identical with embodiment 1, in accelerated test, the condition of the little secret room of steam that the residing humidity of sample C is warm is: temperature is 28 ℃, and humidity is 91%; The residing outdoor open-air condition of sample D is: 32 ℃ of temperature.Test result is: among sample A, B, C, the D, the naked steel that is covered in below the coating does not see that the rusty stain rust staining is arranged.
Embodiment 12
Steel construction inorganic fire rust proof paint is made up of powder and colloid mixing, and wherein, colloid is potassium silicate, and the weight ratio of powder and colloid is 1:0.8; Powder is made into (gross weight is 10Kg) by weight percentage by following composition:
| Component | The magnesite powder | Talcum powder | Ground silica | Aluminum silicon powder |
| Weight (kg) | 3.5 | 0.5 | 3.5 | 2.5 |
| Weight percent (%) | 35 | 5 | 35 | 25 |
Wherein, the granularity of magnesite powder is 5000 orders, MgO content 〉=99%; Talcous granularity is 3500 orders, SiO
2Content 〉=60%; The granularity of ground silica is 5500 orders, SiO
2Content 〉=98%; The granularity of aluminum silicon powder is 1800 orders, SiO
2Content 〉=50%.The granularity of each powder composition is little, and easier dispersion makes it form fine and close structure in coating.
According to the weight of powder, take by weighing the potassium silicate colloid of 8Kg, the modulus scope of potassium silicate is 1.0-3.3, and concentration is 44 degree Beaume, and potassium silicate mixes with above-mentioned powder, is dispersed into the yellow colloid of fine and smooth ropy milk uniformly with high speed dispersor.
Above-mentioned steel construction inorganic fire rust proof paint is brushed on steel construction, and coat-thickness is 2.8mm, carries out the fire resistance test, after testing, the inorganic fire rust proof paint of present embodiment, high temperature resistant temperature can reach 1435 ℃.
Above-mentioned steel construction inorganic fire rust proof paint is carried out the rustless property test, testing method when coat-thickness is 2.8mm is identical with embodiment 1, in accelerated test, the condition of the little secret room of steam that the residing humidity of sample C is warm is: temperature is 21 ℃, and humidity is 84%; The residing outdoor open-air condition of sample D is: 29 ℃ of temperature.Test result is: among sample A, B, C, the D, the naked steel that is covered in below the coating does not see that the rusty stain rust staining is arranged.
Embodiment 13
Steel construction inorganic fire rust proof paint is made up of powder and colloid mixing, and wherein, colloid is potassium silicate, and the weight ratio of powder and colloid is 1:1.2; Powder is made into (gross weight is 10Kg) by weight percentage by following composition:
| Component | The magnesite powder | Talcum powder | Ground silica | Aluminum silicon powder |
| Weight (kg) | 1 | 3.5 | 3.5 | 2 |
| Weight percent (%) | 10 | 35 | 35 | 20 |
Wherein, the granularity of magnesite powder is 6200 orders, MgO content 〉=99%; Talcous granularity is 5500 orders, SiO
2Content 〉=60%; The granularity of ground silica is 4500 orders, SiO
2Content 〉=98%; The granularity of aluminum silicon powder is 2000 orders, SiO
2Content 〉=50%.The granularity of each powder composition is little, and easier dispersion makes it form fine and close structure in coating.
According to the weight of powder, take by weighing the potassium silicate colloid of 12Kg, the modulus scope of potassium silicate is 1.0-3.3, and concentration is 46 degree Beaume, and potassium silicate mixes with above-mentioned powder, is dispersed into the yellow colloid of fine and smooth ropy milk uniformly with high speed dispersor.
On steel construction, coat-thickness is 2.6mm with the roller coating of above-mentioned steel construction inorganic fire rust proof paint, carries out the fire resistance test, after testing, the inorganic fire rust proof paint of present embodiment, high temperature resistant temperature can reach 1445 ℃.
Above-mentioned steel construction inorganic fire rust proof paint is carried out the rustless property test, testing method when coat-thickness is 2.6mm is identical with embodiment 1, in accelerated test, the condition of the little secret room of steam that the residing humidity of sample C is warm is: temperature is 25 ℃, and humidity is 89%; The residing outdoor open-air condition of sample D is: 27 ℃ of temperature.Test result is: among sample A, B, C, the D, the naked steel that is covered in below the coating does not see that the rusty stain rust staining is arranged.
Inorganic fire rust proof paint provided by the invention, applied range, on being applied in steel construction, can also be applied to fields such as metal, glass, concrete, stone material, natural spongiosa organism.Wherein, holding of metal eliminating motion metal objects is coated with thing (as aircraft, automobile, boats and ships).
The above only is preferred embodiment of the present invention, not in order to limiting the present invention, all any modifications of doing, is equal to replacement etc. in protection scope of the present invention, all should be included within protection scope of the present invention.
Claims (5)
1. a steel construction inorganic fire rust proof paint is characterized in that, described coating is mixed by powder and colloid and forms, and the weight ratio of described powder and colloid is 1:0.8-1.2; Described colloid is potassium silicate, and described powder is made into by weight percentage by following composition:
Magnesite powder: 5-40%, the granularity of described magnesite powder is the 2500-6500 order;
Talcum powder: 5-40%, described talcous granularity is the 2000-6000 order;
Ground silica: 4-35%, the granularity of described ground silica is the 3000-8000 order;
Aluminum silicon powder: 4-25%, the granularity of described aluminum silicon powder is the 600-2000 order.
2. steel construction inorganic fire rust proof paint according to claim 1 is characterized in that described powder is made into by weight percentage by following composition:
Magnesite powder: 30-40%, the granularity of described magnesite powder is the 4000-6500 order;
Talcum powder: 25-35%, described talcous granularity is the 3000-5000 order;
Ground silica: 15-25%, the granularity of described ground silica is the 4000-6000 order;
Aluminum silicon powder: 10-20%, the granularity of described aluminum silicon powder is the 1250-2000 order.
3. steel construction inorganic fire rust proof paint according to claim 1 and 2 is characterized in that, MgO content 〉=99% in the described magnesite powder, SiO in the described talcum powder
2Content 〉=60%, SiO in the ground silica
2Content 〉=98%, SiO in the described aluminum silicon powder
2Content 〉=50%.
4. steel construction inorganic fire rust proof paint according to claim 3 is characterized in that, the modulus scope of described potassium silicate is 1.0-3.3, and concentration is the 38-50 degree Beaume.
5. the preparation method of a steel construction inorganic fire rust proof paint is characterized in that, described preparation method's step is as follows:
A, the described powder of claim 1 and colloid are mixed in proportion;
B, the mixture among the step a is stirred, form the yellow colloid of ropy milk.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104384440A (en) * | 2014-11-14 | 2015-03-04 | 无锡伊佩克科技有限公司 | Antirust coating for ingot mold and preparing method of coating |
| CN110698886A (en) * | 2019-11-04 | 2020-01-17 | 焦作玛珂蒎新材料有限公司 | Preparation method of pigment for ship bottom antirust coating, pigment and coating |
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| CN1076941A (en) * | 1992-04-01 | 1993-10-06 | 中国人民解放军总后勤部建筑工程研究所 | A kind of expansion-type fireproof inorganic paint for steel member |
| DE4327280A1 (en) * | 1992-08-14 | 1994-02-17 | Pilkington Plc | Refractory insulating material and process for its manufacture |
| CN101544490A (en) * | 2009-04-30 | 2009-09-30 | 王德洪 | Inorganic fireproof coating of indoor ultrathin steel structure |
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| CN1076941A (en) * | 1992-04-01 | 1993-10-06 | 中国人民解放军总后勤部建筑工程研究所 | A kind of expansion-type fireproof inorganic paint for steel member |
| DE4327280A1 (en) * | 1992-08-14 | 1994-02-17 | Pilkington Plc | Refractory insulating material and process for its manufacture |
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| CN104384440A (en) * | 2014-11-14 | 2015-03-04 | 无锡伊佩克科技有限公司 | Antirust coating for ingot mold and preparing method of coating |
| CN110698886A (en) * | 2019-11-04 | 2020-01-17 | 焦作玛珂蒎新材料有限公司 | Preparation method of pigment for ship bottom antirust coating, pigment and coating |
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