CN105837247A - Fireproof door core board and a preparation method thereof - Google Patents

Fireproof door core board and a preparation method thereof Download PDF

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Publication number
CN105837247A
CN105837247A CN201610183173.0A CN201610183173A CN105837247A CN 105837247 A CN105837247 A CN 105837247A CN 201610183173 A CN201610183173 A CN 201610183173A CN 105837247 A CN105837247 A CN 105837247A
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China
Prior art keywords
additive
acid
magnesium
weight portion
water
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CN201610183173.0A
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Chinese (zh)
Inventor
童裳慧
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Tianjin MICROTEK building materials Co., Ltd.
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Beijing Zhongjing Jiamei Environment Science & Technology Co Ltd
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Priority to CN201610183173.0A priority Critical patent/CN105837247A/en
Publication of CN105837247A publication Critical patent/CN105837247A/en
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/30—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing magnesium cements or similar cements
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/30—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing magnesium cements or similar cements
    • C04B28/32—Magnesium oxychloride cements, e.g. Sorel cement
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B5/00—Doors, windows, or like closures for special purposes; Border constructions therefor
    • E06B5/10—Doors, windows, or like closures for special purposes; Border constructions therefor for protection against air-raid or other war-like action; for other protective purposes
    • E06B5/16—Fireproof doors or similar closures; Adaptations of fixed constructions therefor
    • E06B5/161—Profile members therefor
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20—Resistance against chemical, physical or biological attack
    • C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/30—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values
    • C04B2201/32—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values for the thermal conductivity, e.g. K-factors
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
    • 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

Abstract

The invention relates to the field of building products, and in particular to a fireproof door core board and a preparation method thereof. The fire door core board is prepared from sulfur magnesium oxychloride foam cement, which contains by weight 100 parts of magnesium sulfate, 50-200 parts of magnesium oxide, 0 -500 parts of a filler, 30-350 parts of water, and 8-50 parts of a foaming agent; and the sulfur magnesium oxychloride foam cement also contains an admixture accounting for 0.1-5 wt% of the sulfur magnesium oxychloride foam cement. The fireproof door core board is prepared by using the sulfur magnesium oxychloride cement as the material, and the prepared fireproof door core board has excellent comprehensive performances, such as fire prevention, thermal conductivity, density, compressive strength, bending strength, water absorption, shrinkage, and light weight.

Description

A kind of anti-fire door core board and preparation method thereof
Technical field
The present invention relates to building product field, specifically, relate to a kind of anti-fire door core board and preparation side thereof Method.
Background technology
At present, along with the development of real estate industry of country, the demand of fire-proof construction material is increasingly wider, Require more and more higher.Fire resistant doorsets have closing, fire prevention, cut off, safety, insulation, and sound insulation etc. is many Weight function and practicality, become a requisite ingredient in building, and be increasingly subject to Construction sector of country and the great attention of NFA general bureau.The main material of fire-resistant door core is rock wool, Glass magnesium board, pearlite slab, cement board etc., it is low that these inorganic material the most easily fall slag intensity, By impacting the defects such as easy peeling, mostly contain Organic substance additionally, due to the material used, make fire line Can reduce, produce smoke toxicity the most up to standard.
Domestic anti-fire door core board again is broadly divided into two kinds, and the first is with sodium silicate as binding agent, Expanded perlite is filler, makes through high temperature hot pressing technique after mixing, needs the high temperature of 200～300 DEG C Hot pressing, the production cycle is long, and production efficiency is low, and cost is high, and production process can pollute bad border.Second Plant with magnesium chloride as binding agent, the perlite fireproof door core board prepared, but halogen can be returned, and Magnesium chloride resolves into chloride ion and magnesium ion, forms weakly acidic galvanic element, causes steel door-plate to corrode Get rusty, it addition, the chlorine that the burning of high temperature naked light produces has severe toxicity, even if using application type steel plate, as The positions such as galvanized steel plain sheet, also can be from keyhole, hinge, skeleton, solder joint, operation touching scuffing start corruption Erosion, especially in humid area, south.To this end, a lot of fire resistant doorsets manufacturers begin look for substituting chlorine oxygen magnesium The fire resistant doorsets door panel of cement, e.g., waterglass perlite platelet, the anti-fire door core board such as rock cotton board, but It is low in process of production to there is production efficiency in this product, the problem that high-grade flower pattern fire resistant doorsets cannot produce, And rock cotton board is not environmentally, produce rock wool ash after it is aging harmful, especially asking because of its material Topic cannot meet the bonding of the high-grade fire resistant doorsets with flower pattern.To sum up, fire resistant doorsets production firm is in market Can not find the preferable door panel product that disclosure satisfy that fire resistant doorsets producer.
Magnesium oxysulfide concrete is a kind of inorganic glue being prepared as by Adlerika mix light-magnesite powder Gel material.Magnesium oxysulfide concrete has light weight, fire prevention, coagula, sound insulation, the feature such as heat insulation.With Magnesia oxychloride cement is compared, and the heat-resisting property of magnesium oxysulfide concrete is good, poor to reinforcement corrosion, and halogenation, The most gradually approved also there is very prominent advantage as anti-fire door core board by people.Patent CN104761279A discloses a kind of carbon fiber magnesium oxysulfide concrete foamed fireproofing door panel and making side Method, it is with magnesium oxide, Adlerika, desulfurated plaster, ultrafine carbon fiber, first level flour coal ash, acid Property additive, foaming agent is raw material, stirs into serosity, is cast in grinding tool, in maintenance kiln support Protect the rear demoulding, slab moisturizing temperature control maintenance in maintenance kiln after the demoulding, the anti-fire door core board ring obtained Protect, light weight, high-strength, with low cost, reach prevent fires flammability and the requirement of safety, but technique is multiple Miscellaneous, curing requirements is strict.
The defect existed for prior art, the special proposition present invention.
Summary of the invention
The primary goal of the invention of the present invention is to propose a kind of anti-fire door core board.
Second goal of the invention of the present invention is to propose the preparation method of this anti-fire door core board.
In order to complete the purpose of the present invention, the technical scheme of employing is:
A kind of anti-fire door core board, is prepared from by magnesium oxysulfide foam cement, described magnesium oxysulfide foam cement In contain: magnesium sulfate 100 weight portion, magnesium oxide 50～200 weight portion, filler 0～500 weight Part, water 30～350 weight portion, foaming agent 8～50 weight portion；It is preferably: magnesium sulfate 100 weight Part, magnesium oxide 50～162 weight portion, filler 50～400 weight portion, water 30～300 weight portion, Foaming agent 10～40 weight portion；More preferably: magnesium sulfate 100 weight portion, magnesium oxide 80～120 Weight portion, filler 50～200 weight portion, water 80～120 weight portion, foaming agent 15～25 weight Part；Possibly together with additive in described magnesium oxysulfide foam cement, the addition of described additive is described sulfur The 0.1～5% of oxygen magnesium foam cement weight.
Preferably, described additive selected from additive A, additive B, additive C, additive D, At least one in additive E, additive F, additive G, additive H；
Described additive A selected from carboxylic acid or its salt, the anhydride of carboxylic acid or its salt, dicarboxylic acids or its salt, Sulfonic acid, the anhydride of sulfonic acid or its salt, phosphonic acids, the anhydride of phosphonic acids or its salt, phosphoric acid or its salt, boric acid, At least one in Borax, sodium silicate；
Described carboxylic acid represents with R-COOH, and described sulfonic acid is with R-SO3H represents, described dicarboxylic acids Representing with HOOC-R-R-COOH, described phosphonic acids is with RP (O) (OH)2Or R2P (O) OH represents； R is selected from substituted or unsubstituted C1-15Alkyl, substituent group is selected from containing aerobic, nitrogen, phosphorus or sulphur atom Group；
Preferably, described additive A selected from oxalic acid, phosphoric acid, dihydric phosphate, disodium-hydrogen, Tertiary sodium phosphate, sodium hexameta phosphate, formic acid, formates, tartaric acid, tartrate, lactic acid, amino Acid, salicylic acid, sulfosalicylic acid, malonic acid, succinic acid, sucrose, glucose, sodium gluconate, At least one in sodium acetate；
Described additive B subtracts selected from Lignins water reducer, LOMAR PWA EINECS 246-676-2 based water reducer, water-soluble resin At least one in water preparation or polycarboxylate water-reducer；Described Lignins water reducer is selected from lignin sulfonic acid At least one in calcium, sodium lignin sulfonate, magnesium lignosulfonate；Described water-soluble resin water reducer Selected from melmac, coumarone resin；
Described additive C is selected from chloride salt early strength agent, Sulfates early strength agent or organic selected from early strength agent Amine early strength agent；Described chloride salt early strength agent is selected from calcium chloride, potassium chloride, aluminum chloride or ferric chloride In at least one, preferably calcium chloride；Described Sulfates early strength agent is selected from sodium sulfate, sulfur for sulfur At least one in acid calcium, aluminum sulfate or aluminium potassium sulfate, preferably sodium sulfate；Described organic amine is early Strong agent is selected from triethanolamine or triisopropanolamine, preferably triethanolamine；
Described additive D is selected from saccharide retarder or lignin sulfonate retarder, is preferably wood calcium And molasses, more elect Mel as；
Described additive E is selected from polymer, polymer monomer, albumen, polypeptide, starch or anion At least one in surfactant；Polymer is selected from polyvinyl alcohol, polypropylene, polyacrylonitrile, wood Quality, hydroxypropyl methyl cellulose；Polymer monomer is selected from acrylamide, acrylic acid methyl ester., methyl Acrylic acid methyl ester., vinyl alcohol, vinyl acetate, acrylonitrile, styrene, butadiene, isoprene Or propylene；Anion surfactant is selected from sodium lauryl sulphate, fatty alcohol-polyoxyethylene ether sulphuric acid Sodium, α-sodium olefin sulfonate；
Described additive F selected from soluble resin hydrochlorate, Wen Shaer resin, saponification tell you oil, ten Dialkyl sulfonates, dodecylbenzene sodium sulfonate, sulfonated petroleum hydroxyl class soluble-salt at least one Kind；
Described additive G is selected from silane or siloxanes；
Described additive H is selected from polypropylene fibre, polyacrylonitrile fibre, lignin fibre or hydroxypropyl At least one in Methyl cellulose cellulose fiber.
Preferably, the addition of described additive A be described magnesium oxysulfide foam cement weight 0.1～ 0.8%, preferably 0.4～0.5%；The addition of described additive B is described magnesium oxysulfide foam cement weight The 0.1～0.8% of amount, preferably 0.4～0.5%；The addition of described additive D is described magnesium oxysulfide The 0.5～1.5% of foam cement weight, preferably 0.8～1%；The addition of described additive F is institute State the 0.05～0.2% of magnesium oxysulfide foam cement weight, preferably 0.1～0.2%, described additive G's Addition is the 2～3% of described magnesium oxysulfide foam cement weight, preferably 1.6～2.5%.
Preferably, at least one in the magnesium sulfate containing 1～12 water of crystallization of described magnesium sulfate.
Preferably, described magnesium oxide is selected from magnesite light burnt powder, dolomite light burnt powder, analytical pure oxidation At least one in magnesium；Preferably, described magnesite light burnt powder and described dolomite light burnt powder aoxidize The content of magnesium is 65～85%.
Preferably, described filler be selected from aglite, preferably flyash, slag micropowder, silicon ash, At least one in wood flour, Gypsum Fibrosum powder, dolomite dust, shale powder, the particle diameter of filler be 300 mesh～ 800 mesh.
Preferably, foaming agent is selected from hydrogen peroxide, sodium bicarbonate, ammonium carbonate, azodicarbonamide or idol At least one in nitrogen bis-isobutyronitrile, preferably hydrogen peroxide.
Preferably, the density of described magnesium oxysulfide concrete foamed fireproofing door panel is 200～400kg/m3, Comprcssive strength 3～5MPa, heat conductivity 0.030～0.035w/m K, fire-protection rating is A1 level, Flexibility 0.1～0.2mm.
The invention still further relates to the preparation method of this anti-fire door core board, comprise the following steps: weigh in proportion Raw material, is mixed and stirred for magnesium sulfate, magnesium oxide, additive and water, adds filler and continues to stir To cement grout, in cement grout, pour hydrogen peroxide stirring into, pour mould into, stand, the demoulding, cut Cut, maintenance 3～7 days, obtain magnesium oxysulfide foamed fireproofing door panel.
The Advantageous Effects that the present invention can obtain is:
The magnesium oxysulfide concrete foamed fireproofing door panel of the present invention, with magnesium oxysulfide concrete as Binder Materials, adds The additives such as aglite, waterproof material, anti-crack fiber.Prepare anti-fire door core board fire prevention, The high comprehensive performances such as heat conduction, density, comprcssive strength, rupture strength, water absorption rate, contractility, and Light weight.
In magnesium oxysulfide concrete of the present invention, the interpolation of additive inhibits magnesium hydroxide in cement Generation, and promote the generation of 318 phases, thus be effectively increased the machinery of magnesium oxysulfide concrete Performance and water resistance, meanwhile, have heatproof, indehiscent feature.
The magnesium sulfate that the present invention uses is the side-product that flue gas magnesium processes desulfurization generates, and filler is a large amount of cheap Industrial residue, thus low cost, decrease the pollution of solid waste simultaneously.
Below in conjunction with specific embodiment, the application is expanded on further.Should be understood that these embodiments are only used In explanation the application rather than restriction scope of the present application.
Detailed description of the invention
The present invention relates to a kind of anti-fire door core board, magnesium oxysulfide foam cement be prepared from, magnesium oxysulfide is sent out Soaked mud contains: magnesium sulfate 100 weight portion, magnesium oxide 50～200 weight portion, filler 0～500 Weight portion, water 30～350 weight portion, foaming agent 8～50 weight portion；It is preferably: magnesium sulfate 100 Weight portion, magnesium oxide 50～162 weight portion, filler 50～400 weight portion, water 30～300 weight Part, foaming agent 10～40 weight portion；More preferably: magnesium sulfate 100 weight portion, magnesium oxide 80～ 120 weight portions, filler 50～200 weight portion, water 80～120 weight portion, foaming agent 15～25 Weight portion；Possibly together with additive in magnesium oxysulfide foam cement, the addition of additive is magnesium oxysulfide foaming The 0.1～5% of cement weight, preferably 0.5～4.5%.
Poor toughness that the modified magnesium oxysulfide concrete of foaming needs to overcome common modifications magnesium oxysulfide concrete to exist, Setting time two performances of length defect.In order to overcome drawbacks described above, the present invention is to magnesium oxysulfide concrete Formula is improved, and makes the toughness of foam cement prepared by the magnesium oxysulfide concrete of employing inventive formulation It is greatly improved, and shortens the setting time more than 50% of magnesium oxysulfide concrete, 2 hours I.e. reach initial set.
Wherein, at least one in the magnesium sulfate containing 1～12 water of crystallization of magnesium sulfate, preferably For Magnesium sulfate heptahydrate.The purity of magnesium sulfate is not specially required by the present invention, between 65～99% all Can use, optimum is 95～99%.
The filler of the present invention be selected from aglite, preferably flyash, slag micropowder, silicon ash, wood flour, At least one in Gypsum Fibrosum powder, dolomite dust, shale powder.The particle diameter of filler is more than 300 mesh, adds Filled reduce production cost.
The foaming agent of the present invention is selected from hydrogen peroxide, sodium bicarbonate, ammonium carbonate, azodicarbonamide or idol At least one in nitrogen bis-isobutyronitrile, preferably hydrogen peroxide.
Possibly together with additive in the magnesium oxysulfide foam cement of the present invention, the addition of additive is magnesium oxysulfide The 5～10% of foam cement weight, additive is selected from additive A, additive B, additive C, outer Add at least one in agent D, additive E, additive F, additive G, additive H.
Additive A is the 0.4～0.5% of magnesium oxysulfide foam cement weight；Described additive B is sulfur oxygen The 0.4～0.5% of magnesium foam cement weight；Additive D is described magnesium oxysulfide foam cement weight 0.8～1%；Additive F is the 0.1～0.2% of magnesium oxysulfide foam cement weight, and additive G is sulfur The 1.6～2.5% of oxygen magnesium foam cement weight.
Wherein, additive A selected from carboxylic acid or its salt, the anhydride of carboxylic acid or its salt, dicarboxylic acids or its Salt, sulfonic acid, the anhydride of sulfonic acid or its salt, phosphonic acids, the anhydride of phosphonic acids or its salt, phosphoric acid or its salt, At least one in boric acid, Borax, sodium silicate；Carboxylic acid represents with R-COOH, and sulfonic acid is with R-SO3H Representing, described dicarboxylic acids represents with HOOC-R-R-COOH, and described phosphonic acids is with RP (O) (OH)2 Or R2P (O) OH represents；R is selected from substituted or unsubstituted C1-15Alkyl, substituent group selected from containing aerobic, The group of nitrogen, phosphorus or sulphur atom；
Preferably, additive A is selected from oxalic acid, phosphoric acid, dihydric phosphate, disodium-hydrogen, phosphoric acid Trisodium, sodium hexameta phosphate, formic acid, formates, tartaric acid, tartrate, lactic acid, aminoacid, Salicylic acid, sulfosalicylic acid, malonic acid, succinic acid, sucrose, glucose, sodium gluconate, vinegar At least one in acid sodium；More preferably oxalic acid, phosphoric acid, malonic acid, succinic acid, tartaric acid, lactic acid.
Additive B is water reducer, including: Lignins water reducer, LOMAR PWA EINECS 246-676-2 based water reducer, water-soluble Property resin water reducer, polycarboxylate water-reducer etc..
Wherein, Lignins water reducer includes calcium lignosulfonate (wood calcium), sodium lignin sulfonate (wood Sodium), magnesium lignosulfonate (wood magnesium) etc..
Naphthalene water reducer is that sulfonated the retraction with methanol of the homologue with naphthalene or naphthalene forms.
The water reducer that water-soluble resin water reducer is made with some water-soluble resins for primary raw material, such as three Cymel, coumarone resin etc..Such water reducer reinforced effects is notable, for high efficiency water reducing agent；
Polycarboxylate water-reducer includes with acrylic or methacrylic acid as main chain, the different side chain lengths of grafting Polyethers and with maleic anhydride be main chain be grafted different side chain lengths polyethers.
The function of water reducer is for reducing surface tension, and cement granules is more easy to moisten, and makes aquation relatively more abundant, Thus improve the intensity of concrete.
Additive C is early strength agent, and early strength agent is to accelerate the development of expanded material early strength, and to the later stage The additive that intensity does not makes significant difference, including: chloride salt early strength agent, Sulfates early strength agent, organic Amine early strength agent etc..
Wherein, chloride salt early strength agent mainly has calcium chloride, potassium chloride, aluminum chloride and ferric chloride etc., Preferably calcium chloride.Concrete 3d intensity can be made after interpolation to improve 50%～10%, and 7d intensity carries High 20%～40%, the freezing point of coagulation soil water can be reduced simultaneously, prevent concrete early freezc.
Sulfates early strength agent, mainly has sodium sulfate, Calcium hyposulfite, aluminum sulfate, aluminium potassium sulfate etc., Preferably sodium sulfate, can make the time reaching concrete design strength 70% can shorten about half.
Organic amine early strength agent mainly has triethanolamine, triisopropanolamine etc., preferably triethanolamine, Early age strength of concrete can be made to improve.
Additive D is retarder, and retarder refers to delay concrete coagulating time, and to concrete Later strength develops the additive having no adverse effect, including: saccharide, such as molasses；Lignosulfonates Class, such as wood calcium, wood sodium.It is preferably wood calcium and molasses, more preferably Mel.
Additive E is foam stabilizer, is used for improving bubble stability, extends the bubble burst half-life, bag Include: 1, macromolecular substances, including polyvinyl alcohol, polypropylene, polyacrylonitrile, polyester, wooden The combination of one or more in the fibers such as element, hydroxypropyl methyl cellulose, and albumen, polypeptide, shallow lake The macromolecular substances such as powder, or be the monomeric substance that can be polymerized, preferably acrylamide, acrylic acid Methyl ester, methyl methacrylate, vinyl alcohol, vinyl acetate, acrylonitrile, styrene, butadiene, Isoprene, propylene；2, anion surfactant, such as sodium lauryl sulphate (K12), fat Fat polyoxyethylenated alcohol sodium sulfate (AES), the anion surface active such as α-sodium olefin sulfonate (AOS) The foam stabilizer of agent.
Additive F is air entraining agent, such as soluble resin hydrochlorate (rosin acid), Wen Shaer resin, soap Change tell your oil, dodecyl sodium sulfate, dodecylbenzene sodium sulfonate, sulfonated petroleum hydroxyl class solvable The combination of one or more in property salt.
Additive H is hydrophober, selected from the hydrophober such as silane, siloxanes.
Additive G is fiber, for improving the deformability of foamed products, toughness.Selected from polypropylene, The group of one or more in the fibers such as polyacrylonitrile, polyester, lignin, hydroxypropyl methyl cellulose Close, and other may be used for cement foamed fiber product.
The invention still further relates to the preparation method of magnesium oxysulfide concrete foamed fireproofing door panel, including following step Rapid: to weigh raw material in proportion, magnesium sulfate, magnesium oxide, additive and water are mixed and stirred for, add Filler continues stirring and obtains cement grout, pours hydrogen peroxide stirring into, pour mould in cement grout, Stand, the demoulding, cutting, maintenance 3～7 days, obtain magnesium oxysulfide foamed fireproofing door panel.
Wherein, 5～10Min are stirred after magnesium sulfate, magnesium oxide, additive and water being mixed；To slurry The mixing speed pouring rapidly hydrogen peroxide in liquid into is 300～500 turns, mixing time 20s～60s.
Preferably, the grinding tool used by the present invention is two pieces of stainless steel moulds that can splice, and passes through flange Splicing, bottom is sprue gate, pours into a mould.
It is further preferred that the inner surface of grinding tool can be smooth, it is possibility to have flower pattern, with preparation There is the anti-fire door core board of flower pattern.
The performance of the anti-fire door core board prepared is as shown in table 1:
Table 1: the performance parameter of anti-fire door core board
Rupture strength (MPa) 3～5
Flexibility (mm) 0.1～0.2
Density (kg/m3) 200～400
Heat conductivity (w/m K) 0.030～0.032
Corrosivity Nothing
Fire resistance A1 level
Fire endurance (h) 6.0～7.0
In the examples below, the raw material of use:
Light calcined magnesia；
MgSO4Containing water of crystallization, H2O:MgSO4Ratio is 7:1；
Acid flyash (AFA), from Xiang Kuang power plant, Shanxi (containing main component: 50wt% SiO2, 25wt%Al2O3, 9wt%CaO)；
Flyash, particle diameter is 100 mesh；
Slag micropowder, particle diameter is 500 mesh.
It should be mentioned that the purity of spendable raw material is not most important.Many outsourcing materials can be used as closing Accommodate cheap raw material.
Embodiment 1
In the present embodiment, the proportioning of each raw material is as shown in table 2:
Table 2: the formula (weight portion) of magnesium oxysulfide concrete
Foam as foaming agent with hydrogen peroxide, by cement admixture listed above (with 1000 Part meter) stir 20 minutes with the additive shown in table 3, it is thus achieved that expanded material, it is cast in door In central layer mould, and maintenance 7 days under normal temperature and pressure on pretreatment.Foaming agent adding proportion such as table 4 Shown in.
Table 3: the formula (weight portion) of additive
Additive Weight portion
WJ-A phosphoric acid 5
WJ-B calcium lignosulfonate 5
WJ-D Mel 10
WJ-F dodecylbenzene sodium sulfonate 2
WJ-G polypropylene fibre 25
Table 4 hydrogen peroxide adding proportion (weight portion)
Tested number Cement forms The dioxygen water yield
11 1 30
12 1 40
13 1 50
21 2 30
22 2 40
23 2 50
Table 5 performance parameter contrasts
Performance 11 12 13 21 22 23
Rupture strength (MPa) 3.2 3.5 3.6 4.0 4.2 4.4
Flexibility (mm) 0.2 0.2 0.2 0.1 0.1 0.1
Density (kg/m3) 398 306 211 399 305 212
Heat conductivity (w/m K) 0.031 0.031 0.032 0.030 0.030 0.031
Fire resistance A1 level A1 level A1 level A1 level A1 level A1 level
Fire endurance (h) 7.0 7.0 7.0 7.0 7.0 7.0
Corrosivity Nothing Nothing Nothing Nothing Nothing Nothing
Can be with output from table 5, the excellent anti-folding of the anti-fire door core board various aspects of performance of the embodiment of the present invention is strong Degree height, heat conductivity is little, corrosion-free, and fire resistance is superior, and finished product fire resistance reaches A1 level, Comply fully with GB12955-2008 " fire resistant doorsets " and newly issue standard.
Embodiment 2～6
With slag micropowder as filler, prepare anti-fire door core board by embodiment 1 method.The proportioning of each raw material As shown in table 6 and table 7:
Table 6: the formula (weight portion) of magnesium oxysulfide concrete
Raw material Embodiment 2 Embodiment 3 Embodiment 4 Embodiment 5 Embodiment 6
MgO 240 360 420 450 480
MgSO4 300 300 300 300 300
H2O 240 360 400 450 600
Filler 300 400 900 1200 150
Hydrogen peroxide 30 120 75 60 80
Above magnesium oxysulfide concrete mixture (in terms of 1000 weight portions) is added weight portion shown in table 7 Additive.
Table 7: the formula (weight portion) of additive
The performance parameter of the anti-fire door core board that embodiment 2～6 prepares is close with embodiment 2.
Comparative example 1～5
With slag micropowder as aglite, the proportioning raw materials of comparative example 1～5 is as shown in table 8, additional The interpolation of agent is with embodiment 1:
Table 8: the formula (weight portion) of magnesium oxysulfide concrete
Raw material Comparative example 1 Comparative example 2 Comparative example 3 Comparative example 4 Comparative example 5
MgSO4 300 300 300 300 300
MgO 500 600 200 140 120
H2O 700 800 300 450 600
Filler 400 400 900 1200 150
Hydrogen peroxide 50 50 50 50 50
Preparation method is with embodiment 1, and the parameter of the anti-fire door core board prepared is as shown in table 9.
Table 9: the performance of anti-fire door core board
Performance Comparative example 1 Comparative example 2 Comparative example 3 Comparative example 4 Comparative example 5
Rupture strength (MPa) 4.2 4.1 3.6 3.2 3.0
Flexibility (mm) 0.03 0.04 0.04 0.03 0.05
Density (kg/m3) 200 218 190 196 189
Heat conductivity (w/m K) 0.048 0.042 0.048 0.049 0.050
Fire resistance A1 level A1 level A1 level A1 level A1 level
Fire endurance (h) 3.5 4.2 3.6 3.4 3.3
Corrosivity Nothing Nothing Nothing Nothing Nothing
Comparative example 6～14
Prepare foamed fireproofing door panel according to the formula in embodiment 1 and preparation method, only change additional The adding proportion of agent, adds shown in table 10 by magnesium oxysulfide concrete mixture (in terms of 1000 weight portions) The additive of weight portion.
Table 10: the formula (weight portion) of additive
Cement formula WJ-A WJ-B WJ-D WJ-F WJ-G
Comparative example 6 5 — — — —
Comparative example 7 — 5 — — —
Comparative example 8 — — 10 — —
Comparative example 9 — — — 2 —
Comparative example 10 — — — — 25
Comparative example 11 — — — — —
Comparative example 12 5 5 — — —
Comparative example 13 — — 10 — 25
Comparative example 14 5 5 10 — 25
Preparation method is with embodiment 1, and the parameter of the anti-fire door core board prepared is as shown in table 11.
Table 11: the performance of anti-fire door core board
Although the application is open as above with preferred embodiment, but is not for limiting claim, appoint What those skilled in the art, on the premise of conceiving without departing from the application, can make some possible Variation and amendment, the scope that therefore protection domain of the application should be defined with the application claim It is as the criterion.

Claims (9)

1. an anti-fire door core board, it is characterised in that described anti-fire door core board is foamed water by magnesium oxysulfide Mud is prepared from, and contains in described magnesium oxysulfide foam cement: magnesium sulfate 100 weight portion, magnesium oxide 50～ 200 weight portions, filler 0～500 weight portion, water 30～350 weight portion, foaming agent 8～50 weight Part；
It is preferably: magnesium sulfate 100 weight portion, magnesium oxide 50～162 weight portion, filler 50～400 Weight portion, water 30～300 weight portion, foaming agent 10～40 weight portion；
More preferably: magnesium sulfate 100 weight portion, magnesium oxide 80～120 weight portion, filler 50～200 Weight portion, water 80～120 weight portion, foaming agent 15～25 weight portion；
Possibly together with additive in described magnesium oxysulfide foam cement, the addition of described additive is described sulfur The 0.1～5% of oxygen magnesium foam cement weight.
Anti-fire door core board the most according to claim 1, it is characterised in that described additive selects From additive A, additive B, additive C, additive D, additive E, additive F, outer Add at least one in agent G, additive H；
Described additive A selected from carboxylic acid or its salt, the anhydride of carboxylic acid or its salt, dicarboxylic acids or its salt, Sulfonic acid, the anhydride of sulfonic acid or its salt, phosphonic acids, the anhydride of phosphonic acids or its salt, phosphoric acid or its salt, boric acid, At least one in Borax, sodium silicate；
Described carboxylic acid represents with R-COOH, and described sulfonic acid is with R-SO3H represents, described dicarboxylic acids Representing with HOOC-R-R-COOH, described phosphonic acids is with RP (O) (OH)2Or R2P (O) OH represents； R is selected from substituted or unsubstituted C1-15Alkyl, substituent group is selected from containing aerobic, nitrogen, phosphorus or sulphur atom Group；
Preferably, described additive A selected from oxalic acid, phosphoric acid, dihydric phosphate, disodium-hydrogen, Tertiary sodium phosphate, sodium hexameta phosphate, formic acid, formates, tartaric acid, tartrate, lactic acid, amino Acid, salicylic acid, sulfosalicylic acid, malonic acid, succinic acid, sucrose, glucose, sodium gluconate, At least one in sodium acetate；
Described additive B subtracts selected from Lignins water reducer, LOMAR PWA EINECS 246-676-2 based water reducer, water-soluble resin At least one in water preparation or polycarboxylate water-reducer；Described Lignins water reducer is selected from lignin sulfonic acid At least one in calcium, sodium lignin sulfonate, magnesium lignosulfonate；Described water-soluble resin water reducer Selected from melmac, coumarone resin；
Described additive C is selected from chloride salt early strength agent, Sulfates early strength agent or organic selected from early strength agent Amine early strength agent；Described chloride salt early strength agent is selected from calcium chloride, potassium chloride, aluminum chloride or ferric chloride In at least one, preferably calcium chloride；Described Sulfates early strength agent is selected from sodium sulfate, sulfur for sulfur At least one in acid calcium, aluminum sulfate or aluminium potassium sulfate, preferably sodium sulfate；Described organic amine is early Strong agent is selected from triethanolamine or triisopropanolamine, preferably triethanolamine；
Described additive D is selected from saccharide retarder or lignin sulfonate retarder, is preferably wood calcium And molasses, more elect Mel as；
Described additive E is selected from polymer, polymer monomer, albumen, polypeptide, starch or anion At least one in surfactant；Polymer is selected from polyvinyl alcohol, polypropylene, polyacrylonitrile, wood Quality, hydroxypropyl methyl cellulose；Polymer monomer is selected from acrylamide, acrylic acid methyl ester., methyl Acrylic acid methyl ester., vinyl alcohol, vinyl acetate, acrylonitrile, styrene, butadiene, isoprene Or propylene；Anion surfactant is selected from sodium lauryl sulphate, fatty alcohol-polyoxyethylene ether sulphuric acid Sodium, α-sodium olefin sulfonate；
Described additive F selected from soluble resin hydrochlorate, Wen Shaer resin, saponification tell you oil, ten Dialkyl sulfonates, dodecylbenzene sodium sulfonate, sulfonated petroleum hydroxyl class soluble-salt at least one Kind；
Described additive G is selected from silane or siloxanes；
Described additive H is selected from polypropylene fibre, polyacrylonitrile fibre, lignin fibre or hydroxypropyl At least one in Methyl cellulose cellulose fiber.
Anti-fire door core board the most according to claim 2, it is characterised in that described additive A Addition is described magnesium oxysulfide foam cement weight 0.1～0.8%, preferably 0.4～0.5%；Described The addition of additive B be described magnesium oxysulfide foam cement weight 0.1～0.8%, preferably 0.4～ 0.5%；The addition of described additive D is the 0.5～1.5% of described magnesium oxysulfide foam cement weight, Preferably 0.8～1%；The addition of described additive F is described magnesium oxysulfide foam cement weight 0.05～0.2%, preferably 0.1～0.2%, the addition of described additive G is the foaming of described magnesium oxysulfide The 2～3% of cement weight, preferably 1.6～2.5%.
Anti-fire door core board the most according to claim 1, it is characterised in that described magnesium sulfate selects At least one in the magnesium sulfate containing 1～12 water of crystallization.
Anti-fire door core board the most according to claim 1, it is characterised in that described magnesium oxide selects At least one in magnesite light burnt powder, dolomite light burnt powder, analytical pure magnesium oxide；Preferably, In described magnesite light burnt powder and described dolomite light burnt powder, the content of magnesium oxide is 65～85%.
Anti-fire door core board the most according to claim 1, it is characterised in that described filler is selected from Aglite, preferably flyash, slag micropowder, silicon ash, wood flour, Gypsum Fibrosum powder, dolomite dust, At least one in shale powder, the particle diameter of filler is 300 mesh～800 mesh.
Anti-fire door core board the most according to claim 1, it is characterised in that foaming agent was selected from At least one in hydrogen oxide, sodium bicarbonate, ammonium carbonate, azodicarbonamide or azodiisobutyronitrile, It is preferably hydrogen peroxide.
Magnesium oxysulfide concrete foamed fireproofing door panel the most according to claim 1, it is characterised in that The density of described magnesium oxysulfide concrete foamed fireproofing door panel is 200～400kg/m3, comprcssive strength 3～5 MPa, heat conductivity 0.030～0.035w/m K, fire-protection rating is A1 level, flexibility 0.1～0.2 mm。
9. the preparation method of anti-fire door core board as claimed in claim 1, it is characterised in that described Preparation method comprises the following steps: weigh raw material in proportion, by magnesium sulfate, magnesium oxide, additive and Water is mixed and stirred for, and adds filler continuation stirring and obtains cement grout, pours dioxygen in cement grout into Water stirs, and pours mould into, stands, the demoulding, cutting, maintenance 3～7 days, obtains magnesium oxysulfide foaming Anti-fire door core board.
CN201610183173.0A 2016-03-28 2016-03-28 Fireproof door core board and a preparation method thereof Pending CN105837247A (en)

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CN106277978A (en) * 2016-08-14 2017-01-04 谢新莉 A kind of interior architecture base material and preparation method
CN106278124A (en) * 2016-08-12 2017-01-04 山东天意机械股份有限公司 A kind of anti-fire door core board and preparation method thereof
CN106365587A (en) * 2016-08-19 2017-02-01 贵州理工环保新材料研究有限公司 Inorganic gel integrated timber and manufacturing method thereof
CN106965269A (en) * 2017-04-25 2017-07-21 烟台市宝翔木业有限公司 A kind of formaldehydeless flame-retardant plywood and preparation method thereof
CN107573007A (en) * 2017-10-24 2018-01-12 辽宁科技大学 The preparation method and magnesium oxysulfide binder materials of magnesium oxysulfide binder materials handicraft
CN107721364A (en) * 2017-10-18 2018-02-23 安徽美林凯迪木业有限公司 A kind of preparation method of fire resistant doorsets packing material
CN108546035A (en) * 2018-05-04 2018-09-18 合肥欧克斯新型建材有限公司 A kind of addition palygorskite foamed fireproofing door panel and preparation method thereof
CN108558348A (en) * 2018-05-21 2018-09-21 侯伟旗 A kind of fire resistant doorsets with strong anti-flammability
CN108675820A (en) * 2018-04-20 2018-10-19 重庆致威门业股份有限公司 A kind of foam cement anti-fire door core board and preparation method thereof
CN110005321A (en) * 2019-04-22 2019-07-12 郑州轻工业学院 A kind of high impact properties fireproof acoustic door leaf and preparation method thereof
CN110015908A (en) * 2019-04-26 2019-07-16 四川易元德建材有限公司 A kind of inorganic fireproof decorative door and preparation method thereof
CN110757823A (en) * 2019-10-16 2020-02-07 刘鹏 Preparation method of composite fireproof door core plate
CN110950621A (en) * 2019-12-16 2020-04-03 湖南昌迅科技环保股份有限公司 Gypsum foamed door core board and preparation method thereof
CN112962969A (en) * 2021-04-07 2021-06-15 曹丽亚 Door frame grouting method
CN113024222A (en) * 2021-03-10 2021-06-25 浙江丰成门业有限公司 Fireproof door core plate, preparation process thereof and fireproof door
CN113800813A (en) * 2021-10-12 2021-12-17 江西秀川科技有限公司 Recycled aggregate reinforced slurry and preparation method thereof
CN114149242A (en) * 2021-11-29 2022-03-08 辽宁科大中驰镁建材科技有限公司 Novel fireproof building material based on magnesium oxysulfate cementing material
CN115286352A (en) * 2021-09-09 2022-11-04 上海香飘防火板制造有限公司 Magnesium oxysulfate fireproof plate for tunnel and preparation method thereof
CN116496104A (en) * 2023-05-18 2023-07-28 江阴市威腾铝箔合成材料有限公司 Magnesium material plate and preparation method thereof

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CN106278124A (en) * 2016-08-12 2017-01-04 山东天意机械股份有限公司 A kind of anti-fire door core board and preparation method thereof
CN106277978A (en) * 2016-08-14 2017-01-04 谢新莉 A kind of interior architecture base material and preparation method
CN106365587A (en) * 2016-08-19 2017-02-01 贵州理工环保新材料研究有限公司 Inorganic gel integrated timber and manufacturing method thereof
CN106965269A (en) * 2017-04-25 2017-07-21 烟台市宝翔木业有限公司 A kind of formaldehydeless flame-retardant plywood and preparation method thereof
CN107721364A (en) * 2017-10-18 2018-02-23 安徽美林凯迪木业有限公司 A kind of preparation method of fire resistant doorsets packing material
CN107573007B (en) * 2017-10-24 2020-01-21 辽宁科技大学科技园发展有限公司 Preparation method of magnesium oxysulfate cementing material handicraft and magnesium oxysulfate cementing material
CN107573007A (en) * 2017-10-24 2018-01-12 辽宁科技大学 The preparation method and magnesium oxysulfide binder materials of magnesium oxysulfide binder materials handicraft
CN108675820A (en) * 2018-04-20 2018-10-19 重庆致威门业股份有限公司 A kind of foam cement anti-fire door core board and preparation method thereof
CN108546035A (en) * 2018-05-04 2018-09-18 合肥欧克斯新型建材有限公司 A kind of addition palygorskite foamed fireproofing door panel and preparation method thereof
CN108558348A (en) * 2018-05-21 2018-09-21 侯伟旗 A kind of fire resistant doorsets with strong anti-flammability
CN110005321A (en) * 2019-04-22 2019-07-12 郑州轻工业学院 A kind of high impact properties fireproof acoustic door leaf and preparation method thereof
CN110015908A (en) * 2019-04-26 2019-07-16 四川易元德建材有限公司 A kind of inorganic fireproof decorative door and preparation method thereof
CN110757823A (en) * 2019-10-16 2020-02-07 刘鹏 Preparation method of composite fireproof door core plate
CN110950621A (en) * 2019-12-16 2020-04-03 湖南昌迅科技环保股份有限公司 Gypsum foamed door core board and preparation method thereof
CN113024222A (en) * 2021-03-10 2021-06-25 浙江丰成门业有限公司 Fireproof door core plate, preparation process thereof and fireproof door
CN112962969A (en) * 2021-04-07 2021-06-15 曹丽亚 Door frame grouting method
CN112962969B (en) * 2021-04-07 2022-12-06 新疆龙城建设工程有限公司 Door frame grouting method
CN115286352A (en) * 2021-09-09 2022-11-04 上海香飘防火板制造有限公司 Magnesium oxysulfate fireproof plate for tunnel and preparation method thereof
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