CN106747621A - A kind of preparation method of waterproof, non-ignitable flyash/metakaolin base warming plate - Google Patents

A kind of preparation method of waterproof, non-ignitable flyash/metakaolin base warming plate Download PDF

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Publication number
CN106747621A
CN106747621A CN201611115484.XA CN201611115484A CN106747621A CN 106747621 A CN106747621 A CN 106747621A CN 201611115484 A CN201611115484 A CN 201611115484A CN 106747621 A CN106747621 A CN 106747621A
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flyash
metakaolin
mixing
aggregate
alkali
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姜义军
景治娇
林克萌
苏华雷
牟新东
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Qingdao Institute of Bioenergy and Bioprocess Technology of CAS
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Qingdao Institute of Bioenergy and Bioprocess Technology of CAS
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Priority to CN201611115484.XA priority Critical patent/CN106747621A/en
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    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B38/00Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
    • C04B38/08Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by adding porous substances
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B16/00Use of organic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of organic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B16/04Macromolecular compounds
    • C04B16/08Macromolecular compounds porous, e.g. expanded polystyrene beads or microballoons
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B18/00Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B18/02Agglomerated materials, e.g. artificial aggregates
    • C04B18/023Fired or melted materials
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B18/00Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B18/04Waste materials; Refuse
    • C04B18/06Combustion residues, e.g. purification products of smoke, fumes or exhaust gases
    • C04B18/08Flue dust, i.e. fly ash
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B20/00Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
    • C04B20/10Coating or impregnating
    • C04B20/1018Coating or impregnating with organic materials
    • C04B20/1029Macromolecular compounds
    • C04B20/1033Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/006Compositions 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 mineral polymers, e.g. geopolymers of the Davidovits type
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B38/00Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
    • C04B38/02Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by adding chemical blowing agents
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20Resistance against chemical, physical or biological attack
    • C04B2111/27Water resistance, e.g. waterproof or water-repellant materials
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2201/00Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/30Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values
    • C04B2201/32Mortars, 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
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2201/00Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/50Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00Technologies relating to the processing of minerals
    • Y02P40/10Production of cement, e.g. improving or optimising the production methods; Cement grinding
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/91Use of waste materials as fillers for mortars or concrete

Abstract

The invention belongs to building thermal insulation material field, the production method of specifically related to a kind of waterproof, non-ignitable flyash/metakaolin base warming plate, the aggregate that preparation in accordance with the present invention is selected is metakaolin and flyash, alkali-activator excites polymerization, so that the hydration reaction efficiency of ground polymers is greatly improved, foaming agent is aluminium powder, and decomposition rate and bubble production volume are greatly improved under alkaline environment, so that cost-effective, business efficiency is high.The polystyrene material of selection density in itself, heat insulating coefficient and waterproof effect are fabulous.Other reaction condition is relatively mild, and reaction is easily controlled, simple to operate, and whole technological process meets the requirement of green production.The insulation material light weight of preparation, intensity is high, and good heat insulation, waterproof are excellent, non-ignitable.

Description

A kind of preparation method of waterproof, non-ignitable flyash/metakaolin base warming plate
Technical field
The invention belongs to building thermal insulation material field, and in particular to a kind of waterproof, non-ignitable flyash/metakaolin base are protected The production method of warm plate.
Background technology
In recent years, substantial amounts of infrastructure and architectural engineering occurs successively in China, objectively requires China The critical paces with technology of building trade, constantly improve is crossed over towards high efficiency, high-performance, sustainable development direction.But tradition In process of production, resource and energy consumption are very big, and intensity is also relatively low for cement.Cement industry consume it is a large amount of limited and can not be again The raw energy and mineral resources, bring the bottleneck problem of the energy and resource scarcity, and low intensity and environmental pollution are seriously The significant shortcoming of conventional cement.Require what is used with the implementation of China's wall reform and Building Energy Conservation Policy, in modern architecture Material not only has high-strength, insulation, heat-insulated, and also needs to the performances such as lightweight, the useless, energy-conservation of profit.
Geo-polymer is provided simultaneously with above-mentioned performance as a kind of new construction material, will be obtained in building energy conservation It is widely applied.And ground this concept of polymers was proposed in 1978 by French scientist J.Davidovits, its group The research of team's early stage explains the poly- reaction theory in ground of mineral macromolecular material mechanism of polymerization.On this basis, chemist, material The geo-polymer of alkali-activated carbonatite is widened building field by scholar and engineering scientists, is mainly used in the exterior-wall heat insulation of building In system.It is main aggregate to be disclosed in the B of Chinese invention patent CN 102936117 with ground polymers, adds polystyrene External wall outer insulation material prepared by grain.Volume ratio in the invention shared by polystyrene is smaller, although the insulation material for obtaining Intensity can be with, but because the content of polystyrene is small so that its unit weight is big, thermal conductivity factor is high, does not reach the mesh of outer wall heat insulating energy saving 's.A kind of sandwich of layers for preparing light partition board is disclosed in the A of Chinese patent CN 103482950, the patent is to use Waterglass, slag micropowder, flyash, surfactant, foam stabilizer, light filler, water prepare the laminboard layer of composite laminboard.Should Insulation material prepared by method causes the demoulding time of sample material long because the aquation setting time of ground polymers is long, limits material Continuous process is produced, and increased production cost;Simultaneously waterproofing agent, the alkalescence containing activated slag and flyash are free of in slurry Waterglass, the hidden danger that there is the accumulation of salt in the surface soil, the moisture absorption.Therefore, on existing Research foundation, continue to ground polymers and polystyrene Research in terms of the insulation material that grain is prepared for primary raw material makes great sense.
The solidifying ground polymers base insulation material of high-strength, light weight proposed by the present invention, waterproof, rush, under cryogenic by The small granules of polystyrene of the ground oligomer gel material and light weight of foaming, heat conduction is mixed, and pours shaping.With experiment in system , used as coagulant, insulation material after then clipped, maintenance with the demoulding after 30 minutes by be able to can just be thrown for the conventional oxide in room Enter to use.High-sintering process, and not restricted appearance are eliminated after the insulation material low-temp foaming that particularly prepared by the method The limitation of shape, process is simple is easy to operate, and the ground polymers base insulation material unit weight of preparation is small, intensity is big, waterproof good, setting time It is short, can widen and be applied in actual architectural engineering, with good Commercial Prospect.
The content of the invention
For existing technical problem, the purpose of the present invention is to propose to a kind of efficient, energy-saving and environmental protection, process is simple, performance The preparation method of excellent flyash/metakaolin base insulation material.
To achieve the above object, preparation in accordance with the present invention is comprised the following steps:
1) polymers aggregate processing
Described ground polymers aggregate can select portland cement, slag, quartz, metakaolin, magnesite, perlite, powder The mixing of one or more in coal ash etc., preferably metakaolin and flyash compounding, wherein metakaolin and flyash Weight ratio is 1:10 to 10:1, preferably 3:7 to 7:3, for example can be 3:7、4:6、5:5、6:4 and 7:3.
2) preparation of alkali-activator
Alkali solid particle is added to the water to form transparent solution, and is added in the water glass solution of certain modulus and is mixed Close uniform, as the alkali-activator of ground polymers;
Wherein, one or two the mixing that the waterglass can be selected in sodium metasilicate or potassium silicate, alkali solid particle The one kind that can be selected in NaOH or potassium hydroxide or two kinds of mixing.Preferably, described waterglass is sodium metasilicate The aqueous solution, its modulus is 1~3, and mass concentration is 10~80wt%, 1 the step of based on 100 weight portion) described in polymers Aggregate, the addition of waterglass is 50~150 weight portions, and alkali solid is NaOH, and addition is 10~30 weight portions.
(3) stirring under dry powder various composition according to following component and ratio makes that powder is well mixed to form gelling Material is stand-by:
The Binder Materials includes:
The step of 100 weight portion 1) described in polymers aggregate;
The reinforcing agent of 5~15 weight portions;
The toughener of 1~10 weight portion;
The foam stabilizer of 0.05~2 weight portion;
The waterproofing agent of 3~10 weight portions;
The coagulant of 1~5 weight portion;
The foaming agent of 0.5~8 weight portion.
The reinforcing agent can select triethanolamine, calcium carbonate, aluminium hydroxide, calcium chloride, calcium sulfate, silica, carbonization One or more in silicon etc..
One kind that the toughener can be selected in glass fibre, polypropylene fibre, carbon fiber, rubber, resin etc. or Several mixing.
The foam stabilizer can select stearate, neopelex, silicones polyethers emulsion, polyvinyl alcohol etc. In one kind or several mixing.
The waterproofing agent can be one kind in soap, silane coupler, composite water repellent or two or more Mixing.
The coagulant can be a kind of or several mixing in calcium chloride, silica, sodium nitrate, aluminum oxide etc..
The foaming method has physics and chemical blowing method, and the foaming agent can be physical blowing agent, such as animal The mixing of one or more such as protein liquid, rosin soap, lauryl sodium sulfate, aliphatic alcohols, or can be chemical blowing The mixing of one or more of agent, such as aluminium powder, zinc powder, hydrogen peroxide, azo, nitroso compound etc..
Preferably, the reinforcing agent is calcium sulfate, and toughener is glass fibre, and foam stabilizer is calcium stearate, and waterproofing agent is Methane-siliconic acid, coagulant is aluminum oxide, and foaming agent uses CBA aluminium powder.
(4) preparation of foamed cement material:
By step 2) in prepare the alkali-activator be added to step 3) in prepare described well mixed dry powder bone In material Binder Materials, the slurry that 10~40s forms certain viscosity is stirred under the speed of 2500rpm~4000rpm, then will slurry Material is warming up to 20 DEG C~90 DEG C and carries out hydration reaction, and the reaction time is 0.5h~30h.
(5) polystyrene is modified:
Ground polymers aggregate based on 100 weight portions, to 6~40 weight of addition in the granules of polystyrene of 3~20 weight portions Acetic acid-the ethylene copolymerization emulsions (EVA emulsions) of part, are evenly stirred until that granules of polystyrene is uniformly wrapped up by EVA emulsions at room temperature, The solid content of wherein described acetic acid-ethylene copolymerization emulsions is 20~50%.
(6) preparation of polymers base insulation material:
By step 4) in the Binder Materials and step 5 containing the foaming agent that prepare) in prepare it is modified poly- Styrene pellets mixing and stirring, in injection mould, foaming can obtain the ground of uniform foam cell and gather under conditions of 60~90 DEG C Thing base insulation material, the demoulding after being molded through 5~40 minutes, maintenance, the final insulation panel products of cleaved rear formation.
It is another object of the present invention to provide a kind of flyash/metakaolin base warming plate, the warming plate is by such as Upper described preparation method is prepared.
Beneficial effect
1. the aggregate that preparation process of the present invention is selected is metakaolin and flyash, and alkali-activator excites polymerization so that ground The hydration reaction efficiency of polymers is greatly improved, and foaming agent is aluminium powder, and decomposition rate and bubble production volume are greatly improved under alkaline environment, So that cost-effective, business efficiency is high.The polystyrene material of selection density in itself, heat insulating coefficient and waterproof effect are fabulous. Other reaction condition is relatively mild, and reaction is easily controlled, simple to operate, and whole technological process meets the requirement of green production.
2. the addition of flyash not only reduces the cost of warming plate in the present invention, while the utilization to flyash is reduced The accumulation of industrial waste, alleviates the pollution of environment.Without a large amount of liquid and waste slag produced outputs in preparation, water consumption is smaller, and energy consumption is low, symbol Close environmental protection and the theory for economizing on resources.
3. the insulation material light weight that prepared by the present invention, intensity is high, and good heat insulation, waterproof are excellent, non-ignitable.
Brief description of the drawings
Fig. 1 is waterproof effect figure of the water droplet on the sample material surface prepared by embodiment 9.
Fig. 2 is waterproof effect figure of the water droplet on the sample material surface prepared by embodiment 4.
Specific embodiment
The step of preparation in accordance with the present invention 1) in, due to metakaolin high expensive, although and flyash cost Low but single intensity when using is poor, therefore by metakaolin and flyash compounding use in the present invention, as warming plate aggregate. Kaolin activity without calcining is relatively low, the poor-performing such as strength of materials prepared after mixing with alkali-activator, it is impossible to for reality In the application on border.Therefore, the metakaolin in the present invention is that kaolin is calcined a period of time at a certain temperature to improve Kaolinic activity, the metakaolin higher so as to obtain activity.In step 1) in, to ensure that aggregate has activity higher, will Kaolin calcines 1h~5h at a temperature of 600 DEG C~900 DEG C.And flyash is directly obtained from power plant, without calcining.
Described ground polymers aggregate can select portland cement, slag, quartz, metakaolin, magnesite, perlite, powder The mixing of one or more in coal ash etc., preferably metakaolin and flyash compounding, wherein metakaolin and flyash Weight ratio is 1:10 to 10:1, preferably 3:7 to 7:3, for example can be 3:7、4:6、5:5、6:4 and 7:3.If flyash adds Dosage is larger, is greater than 3:7, then the intensity of the warming plate for preparing can be weaker, while the purpose of reduces cost is not reached, and if The addition of flyash is smaller, is, for example, less than 7:3, then aggregate activity is relatively low, it is impossible to ensure being normally carried out for subsequent technique.
The step of preparation in accordance with the present invention 5) in, polystyrene (EPS) belongs to macromolecule organic polymer, and ground Polymers belongs to inorganic material, incompatible between the two.In order that obtaining ground oligomer gel material equably wraps up granules of polystyrene, Need to be modified polystyrene.Described modifying agent have silane coupler, styrene-acrylate emulsion, phenolic resin, One kind or several mixing in the resin of epoxy resin etc. half or urea formaldehyde class, acetate acrylic acid ester emulsion etc..Preferably, The modifying agent is acetic acid-ethylene copolymerization emulsions (EVA emulsions), and it can at room temperature be modified to EPS surfaces, effective to solve Organic and inorganic incompatible problem.
Hereinafter, will be described in detail the present invention.Before doing so, it should be appreciated that in this specification and appended Claims in the term that uses should not be construed as and be limited to general sense and dictionary meanings, and inventor should allowed Term is suitably defined with the basis of the principle for carrying out best interpretations, according to implication corresponding with technical elements of the invention and generally Thought is explained.Therefore, description presented herein is not intended to limitation originally merely for the sake of the preferred embodiment for illustrating purpose The scope of invention, it will thus be appreciated that without departing from the spirit and scope of the present invention, it can be obtained by it His equivalents or improved procedure.
Hereinafter, the disclosure is described in detail with reference to the accompanying drawings preferred embodiment.Before described, should The term that solution is used in specification and appended, and general and dictionary meaning is should not be interpreted as limited to, but should When the principle that term is suitably defined based on the explanation for allowing inventor best, based on the meaning corresponding to the technology of the present invention aspect Justice and concept are explained.Therefore, description in this preferred embodiment only for illustration purpose, and not refer to the limitation present invention Scope, it is therefore to be understood that, other can be made without departing from the spirit and scope of the invention and is equally implemented and is repaiied Change.
The test of dry density is tested according to GB/T6343-1995 in the present invention, and compression strength is according to GB/T8813- 2008 are tested, and the instrument for using is electronic universal material testing machine.Thermal conductivity factor is tested according to GB10294-88, is made Instrument is Adsorbent By Using Transient Plane Source Technique conductometer, DZDR-S types.Water absorption rate is tested according to QBT 2669-2004.Unless Special instruction, agents useful for same is commercially available product.
Embodiment 1
12.1584g sodium silicate water glass solution is weighed in plastic flask, 2.4650g NaOH is weighed and is added to Stirring and dissolving in 4.7176g water, is then added into being well mixed in sodium silicate water glass, obtains alkali-activator, and standing is treated With.Weigh flyash 3.4680g and 8.0920g metakaolin (3:7) as aggregate, 0.2312g aluminium powders are weighed as foaming agent, 0.6990g calcium sulfate weighs 0.4626g glass fibres as toughener as reinforcing agent, and 0.5020g sodium methyl silicates are used as anti- Aqua, weighs 0.0115g calcium stearates as foam stabilizer, and 0.4200g aluminum oxide stirs above-mentioned dry powder blend as coagulant Uniformly.Then alkali-activator is added in aggregate, quick stirring 30s under 3000rpm speed.Lasting stirring can obtain sticky Slurry, stands 20min at room temperature, treats that aggregate and alkali-activator are fully contacted and react.
The EVA emulsions for weighing 2.4000g are added to the stirring of 1.2000g polystyrene (EPS) foam beads so that emulsion is equal EPS particles are wrapped evenly, the slurry containing foaming agent is poured into EPS and is stirred, sizing in mould is injected into, at 70 DEG C Insulation 30min, the demoulding, maintenance obtains the excellent fire-retardant heat insulation plate of light weight, low heat conduction, waterproof.
Embodiment 2
12.1584g sodium silicate water glass solution is weighed in plastic flask, 2.4650g NaOH is weighed and is added to Stirring and dissolving in 4.7176g water, is then added into being well mixed in sodium silicate water glass, obtains alkali-activator, and standing is treated With.Weigh flyash 4.6240g and 6.9360g metakaolin (4:6) as aggregate, 0.2312g aluminium powders are weighed as foaming agent, 0.6990g calcium sulfate weighs 0.4626g glass fibres as toughener as reinforcing agent, and 0.5020g sodium methyl silicates are used as anti- Aqua, weighs 0.0115g calcium stearates as foam stabilizer, and 0.4200g aluminum oxide stirs above-mentioned dry powder blend as coagulant Uniformly.Then alkali-activator is added in aggregate, quick stirring 30s under 3000rpm speed.Lasting stirring can obtain sticky Slurry, stands 20min at room temperature, treats that aggregate and alkali-activator are fully contacted and react.
The EVA emulsions for weighing 2.4000g are added to the stirring of 1.2000g polystyrene foam particles so that emulsion is equably wrapped EPS particles are wrapped, the slurry containing foaming agent is poured into EPS and is stirred, be injected into sizing in mould, be incubated at 70 DEG C 30min, the demoulding, maintenance obtains the excellent fire-retardant heat insulation plate of light weight, low heat conduction, waterproof.
Embodiment 3
12.1584g sodium silicate water glass solution is weighed in plastic flask, 2.4650g NaOH is weighed and is added to Stirring and dissolving in 4.7176g water, is then added into being well mixed in sodium silicate water glass, obtains alkali-activator, and standing is treated With.Weigh flyash 5.7800g and 5.7800g metakaolin (1:1) as aggregate, 0.2312g aluminium powders are weighed as foaming agent, 0.6990g calcium sulfate weighs 0.4626g glass fibres as toughener as reinforcing agent, and 0.5020g sodium methyl silicates are used as anti- Aqua, weighs 0.0115g calcium stearates as foam stabilizer, and 0.4200g aluminum oxide stirs above-mentioned dry powder blend as coagulant Uniformly.Then alkali-activator is added in aggregate, quick stirring 30s under 3000rpm speed.Lasting stirring can obtain sticky Slurry, stands 20min at room temperature, treats that aggregate and alkali-activator are fully contacted and react.
The EVA emulsions for weighing 2.4000g are added to the stirring of 1.2000g polystyrene foam particles so that emulsion is equably wrapped EPS particles are wrapped, the slurry containing foaming agent is poured into EPS and is stirred, be injected into sizing in mould, be incubated at 70 DEG C 30min, the demoulding, maintenance obtains the excellent fire-retardant heat insulation plate of light weight, low heat conduction, waterproof.
Embodiment 4
12.1584g sodium silicate water glass solution is weighed in plastic flask, 2.4650g NaOH is weighed and is added to Stirring and dissolving in 4.7176g water, is then added into being well mixed in sodium silicate water glass, obtains alkali-activator, and standing is treated With.Weigh flyash 6.9360g and 4.6240g metakaolin (6:4) as aggregate, 0.2312g aluminium powders are weighed as foaming agent, 0.6990g calcium sulfate weighs 0.4626g glass fibres as toughener as reinforcing agent, and 0.5020g sodium methyl silicates are used as anti- Aqua, weighs 0.0115g calcium stearates as foam stabilizer, and 0.4200g aluminum oxide stirs above-mentioned dry powder blend as coagulant Uniformly.Then alkali-activator is added in aggregate, quick stirring 30s under 3000rpm speed.Lasting stirring can obtain sticky Slurry, stands 20min at room temperature, treats that aggregate and alkali-activator are fully contacted and react.
The EVA emulsions for weighing 2.4000g are added to the stirring of 1.2000g polystyrene foam particles so that emulsion is equably wrapped EPS particles are wrapped, the slurry containing foaming agent is poured into EPS and is stirred, be injected into sizing in mould, be incubated at 70 DEG C 30min, the demoulding, maintenance obtains the excellent fire-retardant heat insulation plate of light weight, low heat conduction, waterproof.
Fig. 2 is waterproof effect figure of the water droplet on the sample material surface prepared by embodiment 4, where it can be seen that water droplet is in sample Surface is not penetrated into.
Embodiment 5
12.1584g sodium silicate water glass solution is weighed in plastic flask, 2.4650g NaOH is weighed and is added to Stirring and dissolving in 4.7176g water, is then added into being well mixed in sodium silicate water glass, obtains alkali-activator, and standing is treated With.Weigh flyash 8.0920g and 3.4680g metakaolin (7:3) as aggregate, 0.2312g aluminium powders are weighed as foaming agent, 0.6990g calcium sulfate weighs 0.4626g glass fibres as toughener as reinforcing agent, and 0.5020g sodium methyl silicates are used as anti- Aqua, weighs 0.0115g calcium stearates as foam stabilizer, and 0.4200g aluminum oxide stirs above-mentioned dry powder blend as coagulant Uniformly.Then alkali-activator is added in aggregate, quick stirring 30s under 3000rpm speed.Lasting stirring can obtain sticky Slurry, stands 20min at room temperature, treats that aggregate and alkali-activator are fully contacted and react.
The EVA emulsions for weighing 2.4000g are added to the stirring of 1.2000g polystyrene foam particles so that emulsion is equably wrapped EPS particles are wrapped, the slurry containing foaming agent is poured into EPS and is stirred, be injected into sizing in mould, 70 DEG C of insulations 30min, the demoulding, maintenance obtains the excellent fire-retardant heat insulation plate of light weight, low heat conduction, waterproof.
Table 1:The performance test results of the warming plate prepared when flyash and metakaolin different proportion
Test result according to table 1 can be seen that with flyash and metakaolin weight than increase, the insulation of preparation Less, intensity is gradually reduced the variable density of plate, and thermal conductivity factor gradually increases.
Embodiment 6
12.1584g sodium silicate water glass solution is weighed in plastic flask, 2.4650g NaOH is weighed and is added to Stirring and dissolving in 4.7176g water, is then added into being well mixed in sodium silicate water glass, obtains alkali-activator, and standing is treated With.Flyash 6.9360g and 4.6240g metakaolin is weighed as aggregate, 0.1156g aluminium powders is weighed as foaming agent, 0.6990g calcium sulfate weighs 0.4626g glass fibres as toughener as reinforcing agent, and 0.5020g sodium methyl silicates are used as anti- Aqua, weighs 0.0115g calcium stearates as foam stabilizer, and 0.4200g aluminum oxide stirs above-mentioned dry powder blend as coagulant Uniformly.Then alkali-activator is added in aggregate, quick stirring 30s under 3000rpm speed.Lasting stirring can obtain sticky Slurry, stands 20min at room temperature, treats that aggregate and alkali-activator are fully contacted and react.
The EVA emulsions for weighing 2.4000g are added to the stirring of 1.2000g polystyrene foam particles so that emulsion is equably wrapped EPS particles are wrapped, the slurry containing foaming agent is poured into EPS and is stirred, be injected into sizing in mould, be incubated at 70 DEG C 30min, the demoulding, maintenance obtains the excellent fire-retardant heat insulation plate of light weight, low heat conduction, waterproof.
Embodiment 7
12.1584g sodium silicate water glass solution is weighed in plastic flask, 2.4650g NaOH is weighed and is added to Stirring and dissolving in 4.7176g water, is then added into being well mixed in sodium silicate water glass, obtains alkali-activator, and standing is treated With.Flyash 6.9360g and 4.6240g metakaolin is weighed as aggregate, 0.3468g aluminium powders is weighed as foaming agent, 0.6990g calcium sulfate weighs 0.4626g glass fibres as toughener as reinforcing agent, and 0.5020g sodium methyl silicates are used as anti- Aqua, weighs 0.0115g calcium stearates as foam stabilizer, and 0.4200g aluminum oxide stirs above-mentioned dry powder blend as coagulant Uniformly.Then alkali-activator is added in aggregate, quick stirring 30s under 3000rpm speed.Lasting stirring can obtain sticky Slurry, stands 20min at room temperature, treats that aggregate and alkali-activator are fully contacted and react.
The EVA emulsions for weighing 2.4000g are added to the stirring of 1.2000g polystyrene foam particles so that emulsion is equably wrapped EPS particles are wrapped, the slurry containing foaming agent is poured into EPS and is stirred, be injected into sizing in mould, be incubated at 70 DEG C 30min, the demoulding, maintenance obtains the excellent fire-retardant heat insulation plate of light weight, low heat conduction, waterproof.
Embodiment 8
12.1584g sodium silicate water glass solution is weighed in plastic flask, 2.4650g NaOH is weighed and is added to Stirring and dissolving in 4.7176g water, is then added into being well mixed in sodium silicate water glass, obtains alkali-activator, and standing is treated With.Flyash 6.9360g and 4.6240g metakaolin is weighed as aggregate, 0.4624g aluminium powders is weighed as foaming agent, 0.6990g calcium sulfate weighs 0.4626g glass fibres as toughener as reinforcing agent, and 0.5020g sodium methyl silicates are used as anti- Aqua, weighs 0.0115g calcium stearates as foam stabilizer, and 0.4200g aluminum oxide stirs above-mentioned dry powder blend as coagulant Uniformly.Then alkali-activator is added in aggregate, quick stirring 30s under 3000rpm speed.Lasting stirring can obtain sticky Slurry, stands 20min at room temperature, treats that aggregate and alkali-activator are fully contacted and react.
The EVA emulsions for weighing 2.4000g are added to the stirring of 1.2000g polystyrene foam particles so that emulsion is equably wrapped EPS particles are wrapped, the slurry containing foaming agent is poured into EPS and is stirred, be injected into sizing in mould, be incubated at 70 DEG C 30min, the demoulding, maintenance obtains the excellent fire-retardant heat insulation plate of light weight, low heat conduction, waterproof.
Table 2:Warming plate test result prepared by different foaming agents contents
Data according to table 2 can be seen that increasing for foaming agents content, can effectively reduce density and thermal conductivity factor, The foaming agent but intensity of warming plate can also be reduced and excessive can destroy the structure of warming plate
Embodiment 9:Without waterproofing agent
12.1584g sodium silicate water glass solution is weighed in plastic flask, 2.4650g NaOH is weighed and is added to Stirring and dissolving in 4.7176g water, is then added into being well mixed in sodium silicate water glass, obtains alkali-activator, and standing is treated With.Flyash 6.9360g and 4.6240g metakaolin is weighed as aggregate, 0.1156g aluminium powders is weighed as foaming agent, 0.6990g calcium sulfate weighs 0.4626g glass fibres as toughener as reinforcing agent, weighs 0.0115g calcium stearate conducts Foam stabilizer, 0.4200g aluminum oxide stirs above-mentioned dry powder blend as coagulant.Then alkali-activator is added to bone In material, quick stirring 30s under 3000rpm speed.Lasting stirring can obtain sticky slurry, and 20min is stood at room temperature, treat aggregate It is fully contacted with alkali-activator and is reacted.
The EVA emulsions for weighing 2.4000g are added to the stirring of 1.2000g polystyrene foam particles so that emulsion is equably wrapped EPS particles are wrapped, the slurry containing foaming agent is poured into EPS and is stirred, be injected into sizing in mould, be incubated at 70 DEG C 30min, the demoulding, maintenance obtains the excellent fire-retardant heat insulation plate of light weight, low heat conduction, waterproof.
Fig. 1 is design sketch of the water droplet on the sample material surface prepared by embodiment 9, where it can be seen that water droplet is penetrated at once In sample material.
Embodiment 10
12.1584g sodium silicate water glass solution is weighed in plastic flask, 2.4650g NaOH is weighed and is added to Stirring and dissolving in 4.7176g water, is then added into being well mixed in sodium silicate water glass, obtains alkali-activator, and standing is treated With.Flyash 6.9360g and 4.6240g metakaolin is weighed as aggregate, 0.1156g aluminium powders is weighed as foaming agent, 0.6990g calcium sulfate weighs 0.4626g glass fibres as toughener as reinforcing agent, and 0.3000g sodium methyl silicates are used as anti- Aqua, weighs 0.0115g calcium stearates as foam stabilizer, and 0.4200g aluminum oxide stirs above-mentioned dry powder blend as coagulant Uniformly.Then alkali-activator is added in aggregate, quick stirring 30s under 3000rpm speed.Lasting stirring can obtain sticky Slurry, stands 20min at room temperature, treats that aggregate and alkali-activator are fully contacted and react.
The EVA emulsions for weighing 2.4000g are added to the stirring of 1.2000g polystyrene foam particles so that emulsion is equably wrapped EPS particles are wrapped, the slurry containing foaming agent is poured into EPS and is stirred, be injected into sizing in mould, be incubated at 70 DEG C 30min, the demoulding, maintenance obtains the excellent fire-retardant heat insulation plate of light weight, low heat conduction, waterproof.
Embodiment 11
12.1584g sodium silicate water glass solution is weighed in plastic flask, 2.4650g NaOH is weighed and is added to Stirring and dissolving in 4.7176g water, is then added into being well mixed in sodium silicate water glass, obtains alkali-activator, and standing is treated With.Flyash 6.9360g and 4.6240g metakaolin is weighed as aggregate, 0.1156g aluminium powders is weighed as foaming agent, 0.6990g calcium sulfate weighs 0.4626g glass fibres as toughener as reinforcing agent, and 0.9248g sodium methyl silicates are used as anti- Aqua, weighs 0.0115g calcium stearates as foam stabilizer, and 0.4200g aluminum oxide stirs above-mentioned dry powder blend as coagulant Uniformly.Then alkali-activator is added in aggregate, quick stirring 30s under 3000rpm speed.Lasting stirring can obtain sticky Slurry, stands 20min at room temperature, treats that aggregate and alkali-activator are fully contacted and react.
The EVA emulsions for weighing 2.4000g are added to the stirring of 1.2000g polystyrene foam particles so that emulsion is equably wrapped EPS particles are wrapped, the slurry containing foaming agent is poured into EPS and is stirred, be injected into sizing in mould, be incubated at 70 DEG C 30min, the demoulding, maintenance obtains the excellent fire-retardant heat insulation plate of light weight, low heat conduction, waterproof.
Embodiment 12
12.1584g sodium silicate water glass solution is weighed in plastic flask, 2.4650g NaOH is weighed and is added to Stirring and dissolving in 4.7176g water, is then added into being well mixed in sodium silicate water glass, obtains alkali-activator, and standing is treated With.Flyash 6.9360g and 4.6240g metakaolin is weighed as aggregate, 0.1156g aluminium powders is weighed as foaming agent, 0.6990g calcium sulfate weighs 0.4626g glass fibres as toughener as reinforcing agent, and 1.2000g sodium methyl silicates are used as anti- Aqua, weighs 0.0115g calcium stearates as foam stabilizer, and 0.4200g aluminum oxide stirs above-mentioned dry powder blend as coagulant Uniformly.Then alkali-activator is added in aggregate, quick stirring 30s under 3000rpm speed.Lasting stirring can obtain sticky Slurry, stands 20min at room temperature, treats that aggregate and alkali-activator are fully contacted and react.
The EVA emulsions for weighing 2.4000g are added to the stirring of 1.2000g polystyrene foam particles so that emulsion is equably wrapped EPS particles are wrapped, the slurry containing foaming agent is poured into EPS and is stirred, be injected into sizing in mould, be incubated at 70 DEG C 30min, the demoulding, maintenance obtains the excellent fire-retardant heat insulation plate of light weight, low heat conduction, waterproof.
Table 3:The performance test results of warming plate prepared by different waterproofing agent contents
After test result according to table 3 can be seen that addition waterproofing agent, the water absorption rate of warming plate is significantly reduced, and With increasing for waterproof agent content, water absorption rate is gradually reduced.
Fig. 1 is waterproof effect figure of the water droplet on the sample material surface prepared by embodiment 9.Fig. 2 is water droplet made in embodiment 4 Standby sample material surface waterproofing design sketch.

Claims (8)

1. a kind of preparation method of flyash/metakaolin base insulation material, the preparation method is comprised the following steps:
1) polymers aggregate processing
Described ground polymers aggregate can select portland cement, slag, quartz, metakaolin, magnesite, perlite, flyash The weight ratio of the mixing of one or more in, wherein metakaolin and flyash is 1:10 to 10:1;
2) preparation of alkali-activator
Alkali solid particle is added to the water to form transparent solution, and it is equal to be added to mixing in the water glass solution of certain modulus It is even, as the alkali-activator of ground polymers,
Wherein, one or two the mixing that the waterglass can be selected in sodium metasilicate or potassium silicate, alkali solid particle can be with From the one kind in NaOH or potassium hydroxide or two kinds of mixing;
(3) stirring under dry powder various composition according to following component and ratio makes that powder is well mixed to form Binder Materials It is stand-by:
The Binder Materials includes:
The step of 100 weight portion 1) described in polymers aggregate;
The reinforcing agent of 5~15 weight portions;
The toughener of 1~10 weight portion;
The foam stabilizer of 0.05~2 weight portion;
The waterproofing agent of 3~10 weight portions;
The coagulant of 1~5 weight portion;
The foaming agent of 0.5~8 weight portion;
(4) preparation of foamed cement material:
By step 2) in prepare the alkali-activator be added to step 3) in prepare described well mixed dry powder aggregate glue In gel material, the slurry that 10~40s forms certain viscosity is stirred under the speed of 2500rpm~4000rpm, then by slurry liter Warm to 20 DEG C~90 DEG C carry out hydration reaction, and the reaction time is 0.5h~30h;
(5) polystyrene is modified:
Ground polymers aggregate based on 100 weight portions, to 6~40 weight portions of addition in the granules of polystyrene of 3~20 weight portions Acetic acid-ethylene copolymerization emulsions (EVA emulsions), is evenly stirred until that granules of polystyrene is uniformly wrapped up by EVA emulsions at room temperature, wherein The solid content of the acetic acid-ethylene copolymerization emulsions is 20~50%;
(6) preparation of polymers base insulation material:
By step 4) in the Binder Materials and step 5 containing the foaming agent that prepare) in the modified polyphenyl second for preparing Alkene particle mixing and stirring, in injection mould, foaming can obtain the ground polymers base of uniform foam cell under conditions of 60~90 DEG C Insulation material, the demoulding after being molded through 5~40 minutes, maintenance, the final insulation panel products of cleaved rear formation.
2. the preparation method of flyash according to claim 1/metakaolin base insulation material, it is characterised in that in step It is rapid 1) described in polymers aggregate be that metakaolin and flyash are compounded, wherein the weight ratio of metakaolin and flyash is 3:7 To 7:3.
3. the preparation method of flyash according to claim 1/metakaolin base insulation material, it is characterised in that in step It is rapid 1) described in metakaolin and flyash weight ratio be 3:7、4:6、5:5、6:4 or 7:3.
4. the preparation method of flyash according to claim 1/metakaolin base insulation material, it is characterised in that in step It is rapid 2) described in waterglass for sodium metasilicate the aqueous solution, its modulus be 1~3, mass concentration be 10~80wt%, based on 100 weights The step of amount part 1) described in polymers aggregate, the addition of waterglass is 50~150 weight portions, and alkali solid is NaOH, Addition is 10~30 weight portions.
5. the preparation method of flyash according to claim 1/metakaolin base insulation material, it is characterised in that in step It is rapid 3) described in reinforcing agent from triethanolamine, calcium carbonate, aluminium hydroxide, calcium chloride, calcium sulfate, silica, carborundum One or more;
The toughener is from the one kind in glass fibre, polypropylene fibre, carbon fiber, rubber, resin or several mixing;
The foam stabilizer from the one kind in stearate, neopelex, silicones polyethers emulsion, polyvinyl alcohol or It is several mixing;
One kind or two or more mixing in the waterproofing agent selected fatty acid salt, silane coupler, composite water repellent;
The coagulant is one kind or several mixing in calcium chloride, silica, sodium nitrate, aluminum oxide;
The foaming agent is physical blowing agent, such as in animal protein liquid, rosin soap, lauryl sodium sulfate, aliphatic alcohols The mixing of one or more, or be CBA, such as aluminium powder, zinc powder, hydrogen peroxide, azo, nitrous base class chemical combination The mixing of one or more in thing.
6. the preparation method of flyash according to claim 5/metakaolin base insulation material, it is characterised in that described Foaming agent is the mixing of one or more in animal protein liquid, rosin soap, lauryl sodium sulfate, aliphatic alcohols, or The mixing of one or more in aluminium powder, zinc powder, hydrogen peroxide, azo, nitroso compound.
7. the preparation method of flyash according to claim 1/metakaolin base insulation material, it is characterised in that in step It is rapid 3) described in reinforcing agent be calcium sulfate, toughener is glass fibre, and foam stabilizer is calcium stearate, and waterproofing agent is methane-siliconic acid, Coagulant is aluminum oxide, and foaming agent uses CBA aluminium powder.
8. a kind of flyash/metakaolin base is incubated warming plate, and the warming plate is by according to any one in claim 1 to 7 Described preparation method is prepared.
CN201611115484.XA 2016-12-07 2016-12-07 A kind of preparation method of waterproof, non-ignitable flyash/metakaolin base warming plate Pending CN106747621A (en)

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Application publication date: 20170531

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