CN104761280B - Chlorine oxygen magnesium, magnesium oxysulfide composite cement foam anti-fire door core board and preparation method - Google Patents
Chlorine oxygen magnesium, magnesium oxysulfide composite cement foam anti-fire door core board and preparation method Download PDFInfo
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Abstract
The present invention provides a kind of chlorine oxygen magnesium, magnesium oxysulfide composite cement foam anti-fire door core board and preparation method, and its raw material weight ratio is: magnesium oxide, anhydrous chlorides of rase magnesium solution, Adlerika, desulfurated plaster, ultrafine carbon fiber, ultra-fine silicon ash, proportioning=100:60:66.6:2:0.8:0.5:0.5:0.5:0.5 between cationic polyacrylamide solution, ferrous sulfate, efficient aerating powder. Anhydrous chlorides of rase magnesium solution and Adlerika are mixed even adding in stirrer, then adds cationic polyacrylamide solution and copperas solution, while stirring, add ultrafine carbon fiber, light calcined magnesia, desulfurated plaster, ultra-fine silicon ash and expanding foam solution successively. Buttress is become to be pushed into maintenance kiln maintenance demoulding after 8～10 hours on the mould building foaming slip. Moisturizing temperature control and control water curing is carried out respectively after the demoulding, until water ratio≤10%. Door panel environmental protection of the present invention, high-strength light, have good resistance to elevated temperatures, reaches the requirement of country's fire prevention incendivity and security.
Description
Technical field
The invention belongs to building material made technical field, it is specifically related to foamed fireproofing door panel and its preparation method of a kind of magnesia oxychloride cement+magnesium oxysulfide concrete compound.
Background technology
At present, along with the development of real estate industry of country, the demand of fire-proof construction material is more and more wider, it is desired to also more and more higher. Fire door has closed, resistance multi-functional and the practicality such as fire, partitions, safety, insulation, sound insulation, become must be indispensable in buildings an integral part, and be more and more subject to national construction sector and the great attention of national fire-fighting general bureau. Fire door implements system of licensing, produce the production licence that fire door must obtain fire-fighting general bureau of country and issue, and anti-fire door core board is the core material of fire door indispensability, combustionproperty and safety performance need the type inspection obtaining relevant departments, thus the production of anti-fire door core board is had higher requirement.
Due to the fire-resistance property of magnesium oxide, so it is once fashionable for a time to produce anti-fire door core board with magnesia oxychloride cement. But because state of the art is uneven, magnesia oxychloride cement anti-fire door core board has occurred such or such problem in a particular application, such as steel-made fire-retardant door corrosion, fire door comes unglued, cavity occurs in fire door, door panel intensity difference, fall slag and fall ash, easily the moisture absorption make the problems such as fire-proof wooden door distortion. Especially steel-made fire-retardant door corrosion problem is more outstanding, brings massive losses to unit in charge of construction and developer, causes great waste to society, and its negative effect is far longer than the economic benefit of this product. Therefore a lot of fire door manufacturers starts to find the fire door door panel product substituting magnesia oxychloride cement, such as fire-resistant door core panel products such as water glass perlite platelet, rock cotton board. But there is the problem that production efficiency flower-shape fire door low, high-grade cannot be produced in fire door production process in these door panel products. Production efficiency is lowly because water glass perlite can only produce platelet at present, fire door production process can only be spliced by platelet, mat formation time of door panel generally at 10 minutes, even longer, and also the overall resistance fire effect of fire door has a significant impact by the gap spliced.Rock cotton board is also like this. In addition, rock cotton board is not environmentfriendly products, produces rock wool ash harmful after this aging of product. Another is exactly because the problem of its material cannot meet the bonding of the high-grade fire door with flower-shape. And magnesium oxysulfide concrete foaming doors central layer, because of its material behavior, cannot produce under temperature is lower than 15 DEG C of environment, be not suitable for the working condition in area, Northeast China.
Summary of the invention
The object of the present invention aims to provide a kind of environmental protection, high-strength light, fireproof heat insulating, the anti-fire door core board manufacturing enterprise in northeast can be made when not increasing production cost, it is achieved the big block chlorine oxygen magnesium of whole year production, magnesium oxysulfide composite cement foam anti-fire door core board and preparation method.
For this reason, the solution that the present invention takes is:
A kind of chlorine oxygen magnesium, magnesium oxysulfide composite cement foam anti-fire door core board, its raw material weight ratio is:
Magnesium oxide, magnesium chloride solution, Adlerika, desulfurated plaster, ultrafine carbon fiber, ultra-fine silicon ash, proportioning=100:60:66.6:2:0.8:0.5:0.5:0.2:0.5:0.5:0.3:0.5 between cationic polyacrylamide solution, industrial boric acid, ferrous sulfate, tertiary sodium phosphate, re-dispersible glue powder, whipping agent.
Described magnesium oxide is light calcined magnesia, its magnesium content >=85%, active >=65%;
Described magnesium chloride solution system adds 20 kilograms of Magnesium Chloride Anhydrouss by 40 kg of water and dissolves;
Described Adlerika is that the magnesium sulfate adding 16.6 kilograms by 50 kg of water under normal temperature dissolves;
Described desulfurated plaster fineness is more than 180 orders;
Described ultrafine carbon fiber Fibre diameter is 3～10 μm;
The fineness of described ultra-fine silicon ash is more than 300 orders;
Described cationic polyacrylamide strength of solution is 0.1%, and namely 1 kg of water adds 1 gram of polyacrylamide amine solvent and becomes;
Described industrial boric acid and tertiary sodium phosphate are powder;
Described copperas solution concentration is 20%;
Described re-dispersible glue powder is powder;
Described whipping agent is water, gelatine, caustic soda, galactomannan gum, animal proteinum, alkylphenol polyoxyethylene (being commonly called as OP-10), emulsifier os-15, wooden sodium sulfonate's colloid whipping agent that 10:3:0.5:0.5:2:1:1.5:5 synthesizes by weight.
The concrete processing step of the preparation method of chlorine oxygen magnesium of the present invention, magnesium oxysulfide composite cement foam anti-fire door core board is:
1, by anhydrous chlorides of rase magnesium solution and Adlerika mixing and stirring, magnesium chloride, magnesium sulfate composite solution is formed; Whipping agent and water are dissolved formation expanding foam solution in the ratio of 1:50; Modulate solid powder and solution for standby more according to the above ratio.
2, magnesium chloride and magnesium sulfate composite solution are joined in stirrer, add cationic polyacrylamide solution and copperas solution again, stir after within 30 seconds, stopping stirring, add ultrafine carbon fiber, stirrer stirs 30 seconds again, then light calcined magnesia, desulfurated plaster, ultra-fine silicon ash, industrial boric acid, tertiary sodium phosphate and re-dispersible glue powder is added successively, stir 180 seconds, foaming machine is started while continuing to stir, the expanding foam solution prepared is squeezed in stirrer, continue to stir 300 seconds, formed and stir the slip that foams uniformly;
3, foaming slip is cast in the mould got ready, carries out smashing system by hand, eliminate the bubble gap between slip, slip is evenly distributed, then strikes off with scraper plate, slurry thickness is measured, thickness exceedes gauge thickness, then feed supplement and striking off again, until reaching thickness requirement.
4, becoming buttress to be pushed into maintenance kiln by building complete slip mould, the buttress that falls highly is no more than 1.5 meters, and under the low temperature environment of 5～15 DEG C, maintenance carried out the demoulding after 12～16 hours;
5, the door panel base after the demoulding is carried out moisturizing temperature control maintenance, maintenance 48～72 hours under temperature 5～15 DEG C, relative humidity >=80% condition, its intensity is made to reach more than 95%, carry out control water curing 120 hours again, namely door panel is placed in the environment of humidity≤40% naturally air-dry, the foamed fireproofing door panel of obtained water ratio≤10%.
The useful effect of the present invention is:
Owing to the present invention adopts magnesium chloride and magnesium sulfate as gelling material promotor, goods contain very small amount of free chloro ion, and these free chloro ions are negative charges, substantially allow positively charged ion fix to absorption, can not the anti-halogen of the moisture absorption, to metal products produce action of rust. The present invention adopts high-temperature anhydrous magnesium chloride solution to mix with low temperature Adlerika at low temperatures, it is to increase the speed of cementitious material to solidify so that it is within 8～10 hours, can reach the 70% of intensity at low temperatures, it is possible to the demoulding smoothly, it is achieved the production of industrialization.
The present invention adopts cationic polyacrylamide, utilizes the effect that positive and negative charge adsorbs mutually, is fixed by free chloro ion, not with other substance reaction, loses the hygroscopic properties of chlorion, although containing free chloro ion in goods, but also never can the anti-halogen of the moisture absorption.
The ultra-fine characteristic that the present invention adopts ultra-fine silicon ash exclusive, joins in magnesium oxysulfide concrete slip, can significantly improve resistance to compression, anti-folding, impervious, anticorrosion, shock resistance and wear resisting property.
Anti-fire door core board environmental protection of the present invention, high-strength light, there is good resistance to elevated temperatures, make the goods can be fire-resistant 180 minutes under high temperature 1200 DEG C of conditions, reach the requirement of goods fire prevention incendivity and security, belong to the green product of state ministry of public security fire department emphasis Popularization And Development. Meanwhile, the anti-fire door core board manufacturing enterprise in northeast can be made when not increasing production cost, it is achieved whole year production.
Embodiment
The raw material weight ratio of embodiment chlorine oxygen magnesium, magnesium oxysulfide composite cement foam anti-fire door core board is:
Magnesium oxide, magnesium chloride solution, Adlerika, desulfurated plaster, ultrafine carbon fiber, ultra-fine silicon ash, proportioning=100:60:66.6:2:0.8:0.5:0.5:0.2:0.5:0.5:0.3:0.5 between cationic polyacrylamide solution, industrial boric acid, ferrous sulfate, tertiary sodium phosphate, re-dispersible glue powder, efficient aerating powder. Wherein:
Magnesium oxide is magnesium content >=85%, the light calcined magnesia of active >=65%; Magnesium chloride solution system adds 20 kilograms of Magnesium Chloride Anhydrouss by 40 kg of water and dissolves; Adlerika is that the magnesium sulfate adding 16.6 kilograms by 50 kg of water under normal temperature dissolves; Desulfurated plaster fineness is more than 180 orders; Ultrafine carbon fiber Fibre diameter is 3～10 μm; The fineness of ultra-fine silicon ash is more than 300 orders; Cationic polyacrylamide strength of solution is 0.1%, and namely 1 kg of water adds 1 gram of polyacrylamide amine solvent and becomes; Industrial boric acid is powder; Copperas solution concentration is 20%; Described tertiary sodium phosphate is powder; Re-dispersible glue powder is powder; Whipping agent is water, gelatine, caustic soda, galactomannan gum, animal proteinum, alkylphenol polyoxyethylene (being commonly called as OP-10), emulsifier os-15, wooden sodium sulfonate's colloid whipping agent that 10:3:0.5:0.5:2:1:1.5:5 synthesizes by weight.
Embodiment 1:
1, raw material prepares
Light calcined magnesia prepares, and selects the light calcined magnesia 100 kilograms of magnesium content >=85%, activity index >=65%.
Prepared by solution: anhydrous chlorides of rase magnesium solution adds 20 kilograms of Magnesium Chloride Anhydrouss by 40 kg of water and dissolves, and Magnesium Chloride Anhydrous produces huge hydration heat in dissolution process, makes solution temperature rise to 80 DEG C very soon, it is not necessary to heating. The magnesium sulfate that Adlerika adds 16.6 kilograms by 50 kg of water at ambient temperature dissolves. Adlerika is poured in the anhydrous chlorides of rase magnesium solution of high temperature, stir after evenly and form magnesium chloride and Adlerika composite solution.
Cationic polyacrylamide solution prepares: will add 0.5 gram of polyacrylamide powder in 0.5 kg of water and also stir evenly.
Industrial boric acid prepares: take industrial boric acid 0.2 kilogram.
Expanding foam solution prepares: is dissolved into by the whipping agent of 0.5 kilogram in the water of 25 kilograms, forms uniform expanding foam solution.
Desulfurated plaster 2 kilograms, ultrafine carbon fiber 0.8 kilogram, ultra-fine silicon ash 0.25 kilogram, industrial boric acid 0.5 kilogram, re-dispersible glue powder 0.3 kilogram are weighed.
Mould prepares, and mold cleaning is clean, and mould frame smears releasing agent, and in template, covering with plastic film is for subsequent use
2, prepare
Stir: the magnesium chloride mixed and magnesium sulfate composite solution are poured in stirrer, then add cationic polyacrylamide solution, start after stirrer stirred for 30 seconds and stop stirring.
Add ultrafine carbon fiber, then stir 30 seconds, ultrafine carbon fiber is evenly distributed in the middle of solution.
After adding light calcined magnesia, desulfurated plaster, ultra-fine silicon ash successively, then stir 180 seconds.
While continuing to stir, start foaming machine and the expanding foam solution prepared all is squeezed in stirrer through foaming machine, continue to stir 300 seconds, foaming slip is stirred evenly.
Building: the slip that appropriate stirring foamed uniformly is poured in previously prepd mould, manual tamping, then striking off with scraper plate, then detects slurry thickness with survey instrument, if exceeding gauge thickness, will again wiping unnecessary slip off, until reaching specific thickness.
Maintenance: become buttress to be pushed into maintenance kiln by building complete slip mould, falling buttress height must not more than 1.5 meter, and at >=5 DEG C, the lower maintenance of the low temperature environment of≤15 DEG C carries out the demoulding after 12～16 hours;
Door panel base after the demoulding is carried out moisturizing temperature control maintenance 48 hours to 72 hours, temperature >=5 DEG C, ≤ 15 DEG C, relative humidity >=80%, make its intensity reach more than 95%, then carry out control water curing 120 hours, namely door panel is placed in the environment of humidity≤40% naturally air-dry, by water evaporates unnecessary in door panel base, the foamed fireproofing door panel of obtained water ratio≤10%.
Embodiment 2:
1, raw material prepares
Select the light calcined magnesia 200 kilograms of magnesium content >=85%, activity index >=65%.
Prepared by solution: magnesium chloride solution 80 kg of water adds 40 kilograms of Magnesium Chloride Anhydrouss and dissolves and become, and Magnesium Chloride Anhydrous produces huge hydration heat in dissolution process, makes solution temperature rise to 80 DEG C very soon, it is not necessary to heating. The magnesium sulfate that Adlerika adds 33.2 kilograms by 100 kg of water at ambient temperature dissolves, then is poured into by Adlerika in the anhydrous chlorides of rase magnesium solution of high temperature, stirs after evenly and forms magnesium chloride and Adlerika composite solution.
1 gram of polyacrylamide powder is added and 1 kg of water stirs evenly, form cationic polyacrylamide solution.
The whipping agent of 1 kilogram is dissolved in the water of 50 kilograms, forms uniform expanding foam solution.
Desulfurated plaster 4 kilograms, ultrafine carbon fiber 1.6 kilograms, ultra-fine silicon ash 1 kilogram, industrial boric acid 1 kilogram, re-dispersible glue powder 0.6 kilogram are weighed.
Mould prepares, and mold cleaning is clean, and mould frame smears releasing agent, and in template, covering with plastic film is for subsequent use
2, prepare
Stir: the magnesium chloride mixed and magnesium sulfate composite solution are poured in stirrer, then add cationic polyacrylamide solution, start after stirrer stirred for 30 seconds and stop stirring.
Add ultrafine carbon fiber, then stir 30 seconds, ultrafine carbon fiber is evenly distributed in the middle of solution.
After adding light calcined magnesia, desulfurated plaster, ultra-fine silicon ash successively, industrial boric acid, re-dispersible glue powder stir 180 seconds again.
While continuing to stir, start foaming machine and the expanding foam solution prepared all is squeezed in stirrer through foaming machine, continue to stir 300 seconds, foaming slip is stirred evenly.
Building: the slip that appropriate stirring foamed uniformly is poured in previously prepd mould, manual tamping, then striking off with scraper plate, then detects slurry thickness with survey instrument, if exceeding gauge thickness, will again wiping unnecessary slip off, until reaching specific thickness.
Maintenance: become buttress to be pushed into maintenance kiln by building complete slip mould, falling buttress height must not more than 1.5 meter, and at >=5 DEG C, the lower maintenance of the low temperature environment of≤15 DEG C carries out the demoulding after 12～16 hours;
Door panel base after the demoulding is carried out moisturizing temperature control maintenance 48 hours to 72 hours, temperature >=5 DEG C, ≤ 15 DEG C, relative humidity >=80%, make its intensity reach more than 95%, then carry out control water curing 120 hours, namely door panel is placed in the environment of humidity≤40% naturally air-dry, by water evaporates unnecessary in door panel base, the foamed fireproofing door panel of obtained water ratio≤10%.
Claims (2)
1. a chlorine oxygen magnesium, magnesium oxysulfide composite cement foam anti-fire door core board, it is characterised in that, its raw material weight ratio is:
Magnesium oxide, magnesium chloride solution, Adlerika, desulfurated plaster, ultrafine carbon fiber, ultra-fine silicon ash, proportioning=100:60:66.6:2:0.8:0.5:0.5:0.2:0.5:0.5:0.5 between cationic polyacrylamide solution, industrial boric acid, ferrous sulfate, tertiary sodium phosphate, whipping agent;
Described magnesium oxide is light calcined magnesia, its magnesium content >=85%, active >=65%;
Described magnesium chloride solution system adds 20 kilograms of Magnesium Chloride Anhydrouss by 40 kg of water and dissolves;
Described Adlerika is that the magnesium sulfate adding 16.6 kilograms by 50 kg of water under normal temperature dissolves;
Described desulfurated plaster fineness is more than 180 orders;
Described ultrafine carbon fiber Fibre diameter is 3～10 μm;
The fineness of described ultra-fine silicon ash is more than 300 orders;
Described cationic polyacrylamide strength of solution is 0.1%, and namely 1 kg of water adds 1 gram of polyacrylamide amine solvent and becomes;
Described industrial boric acid is powder;
Described copperas solution concentration is 20%;
Described tertiary sodium phosphate is powder;
Described whipping agent is water, gelatine, caustic soda, galactomannan gum, animal proteinum, alkylphenol polyoxyethylene, emulsifier os-15, wooden sodium sulfonate's colloid whipping agent that 10:3:0.5:0.5:2:1:1.5:5 synthesizes by weight.
2. the preparation method of chlorine oxygen magnesium, magnesium oxysulfide composite cement foam anti-fire door core board described in an application rights requirement 1, it is characterised in that, its concrete processing step is:
(1), by magnesium chloride solution and Adlerika mixing and stirring, magnesium chloride and magnesium sulfate composite solution is formed; Whipping agent and water are dissolved formation expanding foam solution in the ratio of 1:50;Solid powder and solution for standby is modulated again in ratio described in claim 1;
(2), magnesium chloride and magnesium sulfate composite solution are joined in stirrer, add cationic polyacrylamide solution and copperas solution again, stir after within 30 seconds, stopping stirring, add ultrafine carbon fiber, stirrer stirs 30 seconds again, then light calcined magnesia, desulfurated plaster, ultra-fine silicon ash, industrial boric acid and tertiary sodium phosphate is added successively, stir 180 seconds, foaming machine is started while continuing to stir, the expanding foam solution prepared is squeezed in stirrer, continue to stir 300 seconds, formed and stir the slip that foams uniformly;
(3), foaming slip is cast in the mould got ready, carries out smashing system by hand, eliminate the bubble gap between slip, slip is evenly distributed, then strikes off with scraper plate, slurry thickness is measured, thickness exceedes gauge thickness, then feed supplement and striking off again, until reaching thickness requirement;
(4), by building complete slip mould becoming buttress to be pushed into maintenance kiln, the buttress that falls highly is no more than 1.5 meters, and under the low temperature environment of 5～15 DEG C, maintenance carried out the demoulding after 12～16 hours;
(5), the door panel base after the demoulding is carried out moisturizing temperature control maintenance, maintenance 48～72 hours under temperature 5～15 DEG C, relative humidity >=80% condition, its intensity is made to reach more than 95%, carry out control water curing 120 hours again, namely door panel is placed in the environment of humidity≤40% naturally air-dry, the foamed fireproofing door panel of obtained water ratio≤10%.
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| CN106082929B (en) * | 2016-06-14 | 2018-05-25 | 贺滔 | A kind of magnesium gelatinous material of homogeneous and preparation method thereof and product |
| CN108238777B (en) * | 2016-12-23 | 2020-10-13 | 中冶建筑研究总院有限公司 | Glass fiber reinforced cement and preparation method thereof |
| CN108569913A (en) * | 2017-05-02 | 2018-09-25 | 浙江星月安防科技有限公司 | A kind of anti-fire door core board and the preparation method and application thereof |
| CN107162633A (en) * | 2017-06-14 | 2017-09-15 | 合肥市旺友门窗有限公司 | A kind of anti-fire door core board and preparation method thereof |
| CN107117930A (en) * | 2017-06-14 | 2017-09-01 | 合肥市旺友门窗有限公司 | A kind of high temperature resistance and high strength fire-resistant door core sheet material and preparation method thereof |
| CN108858671A (en) * | 2017-06-15 | 2018-11-23 | 海宁永欣科技咨询有限公司 | The manufacture craft of door panel |
| CN107216113A (en) * | 2017-06-21 | 2017-09-29 | 合肥市旺友门窗有限公司 | A kind of anti-fire door core board and preparation method thereof |
| CN108793910A (en) * | 2017-09-26 | 2018-11-13 | 海南鑫申绿色建筑科技有限公司 | Anti- folding halogen-free flameproof plate of one kind and preparation method thereof |
| CN108590465A (en) * | 2018-04-17 | 2018-09-28 | 天津市格林门业有限公司 | A kind of forming method of fire resistant doorsets |
| CN109650837B (en) * | 2019-01-14 | 2022-03-18 | 中南林业科技大学 | Straw/magnesium cement composite light high-strength fireproof door core plate and preparation method thereof |
| CN110922156A (en) * | 2019-12-04 | 2020-03-27 | 王晓明 | Preparation method of environment-friendly, economical, high-temperature-resistant and high-strength fireproof door core board |
| CN115959875A (en) * | 2022-11-10 | 2023-04-14 | 四川零零昊科技有限公司 | Light filler and preparation method and application thereof |
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