CN105297942B - The lightgage steel joist heat preservation decoration integrative wall and preparation method of composite aerogel - Google Patents

The lightgage steel joist heat preservation decoration integrative wall and preparation method of composite aerogel Download PDF

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CN105297942B
CN105297942B CN201410365284.4A CN201410365284A CN105297942B CN 105297942 B CN105297942 B CN 105297942B CN 201410365284 A CN201410365284 A CN 201410365284A CN 105297942 B CN105297942 B CN 105297942B
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colloid
aerogel
silica
steel joist
strength
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CN105297942A (en
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金承黎
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Zhejiang San run nanotechnology Co., Ltd.
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Abstract

The present invention relates to a kind of heat insulation decorative load-bearing integration assembled wall and preparation method thereof, more particularly to using aerogel material as heat-insulation layer, heat-insulation layer inside and outside has lightgage steel joist, high-strength panel and decorative layer respectively, is provided simultaneously with the assembled wall of insulation and decoration functions.The lightgage steel joist heat preservation decoration integrative assembled wall of composite aerogel of the present invention have lightweight, high-strength, low thermal conductivity, it is both artistic and practical the characteristics of, product be prefabricated in the factory shaping after can quickly assemble at the scene, to promote China's housing industrialization and green building development have significant realistic meaning.

Description

The lightgage steel joist heat preservation decoration integrative wall and preparation method of composite aerogel
Technical field
The present invention relates to a kind of heat insulation decorative load-bearing integration assembled wall and preparation method thereof, more particularly to airsetting Glue material is heat-insulation layer, and heat-insulation layer inside and outside has lightgage steel joist, high-strength panel and decorative layer respectively, is provided simultaneously with being incubated and decorating work( The assembled wall of energy.The lightgage steel joist heat preservation decoration integrative assembled wall of composite aerogel of the present invention has lightweight, height By force, low thermal conductivity, it is both artistic and practical the characteristics of, product be prefabricated in the factory shaping after can quickly assemble at the scene, to promote China The development of housing industrialization and green building has significant realistic meaning.
Background technology
Developing rapidly with housing industrialization and green building and at home, is proposed to high performance novel wall material New requirement, particularly pair has a demand for the heat preservation decoration integrative wall body structure of good thermal insulation property and facing attractive in appearance simultaneously It is particularly urgent.
Aeroge is a kind of novel nano heat-insulating material, is invented by U.S. Kistler.S. within 1931, is otherwise known as " blue Cigarette ", " cigarette freezed ", it is known as changing the magical material in the world, has been classified as 10 big hot topics science and technology since the 1990s One of, it is the dual-use technology that there are huge applications to be worth.
Aeroge, which has mutually to assemble with nanometer scale ultramicro powder, is formed nanoporous network structure, and porosity is up to 80 ~99.8%, density low can reach 0.003g/cm3, and room temperature thermal conductivity factor low can reach 0.013w/ (mk), and temperature in use is reachable 1300 DEG C, using 1/3 to 1/10 that thickness is Conventional insulation, be most light so far solid material and heat-insulating property most Good material, is referred to as super insulating material, can be widely used for Aero-Space, petrochemical industry, electric power metallurgy, ship vehicle, essence The adiabatic heat-insulation in the fields such as close instrument, refrigerator freezer, building energy conservation, clothes, shoes and hats.NASA 2013 it has been determined that During Mars exploration in 2018, astronaut will put on the suit manufactured with new aeroge.One 18 is added in the suit The aerogel layer of millimeters thick, the high temperature and subzero 130 DEG C of ultralow temperature that astronaut can be helped to shoulder 1300 DEG C.
Lightweight steel joist system, which is mainly used in low layer and multi-storey building it, not only has strong light-weight plasticity It is excellent with good toughness etc., and building usable floor area is added, a large amount of clay resources have been saved, have been a kind of structures of environment-friendly high-efficiency Form, embody the green building theory for structure resource-efficient and environment friendly society of developing a circular economy.Airsetting glue material Material is obtained with excellent heat insulation effect applied to lightgage steel joist heat preservation decoration integrative wall, and greatly reduces wall Thickness, save space.
At present, the lightgage steel joist walling system by the use of rock wool, mineral wool or styrofoam as insulation material has been announced specially Profit.Patent CN200920094382.3 discloses a kind of external wall filling and heat insulating integral fabricated wall, using inside and outside Double-deck wallboard, each honeycomb concrete side lining is by the Tenon vertical direction polymer cement mortar filleting of upper and lower plate, respectively Honeycomb concrete side sheet by the Tenon vertical direction polymer cement mortar filleting of upper and lower plate, the side lining with The side sheet fissure of displacement is installed and by the horizontal lightgage steel joist of U-typed by the edge of a wing portion clamping of side lining and side sheet, the water Flat lightgage steel joist both ends are fixedly connected by connector with frame column, and side sheet passes through expansion bolt with frame column or Vierendeel girder It is fixedly connected.The utility model advantage is structure novelty, assembling is fast, high insulating effect, without straight joint, without heat bridge, reach building Save more than 65% standard.Patent CN201120015095.6 discloses a kind of lightgage steel joist assembled wall with function of shielding Body, it includes Side fascia, lining, shielding wire netting and lightgage steel joist, and the Side fascia and the lining are fixed on the light steel dragon The both sides of bone, the shielding wire netting is located between the Side fascia or the lining and the lightgage steel joist, in the Side fascia or institute State and be provided with smooth pad between lining and the shielding wire netting, and the smooth pad is fixed on the lightgage steel joist.This The lightgage steel joist assembled wall of utility model is by shielding wire netting and Side fascia or being set between lining smooth Pad, by the control of wall leveling degree deviation within 3mm, it can meet《Code for construction quality acceptance of building decoration》Will Ask, overcome that lightweight lightgage steel joist wall is uneven caused by gauze screen, problem of Cracking well.
The problem of for lightgage steel joist heat bridge, patent CN201110377742.2 disclose low thermal conductivity type exterior wall insulating Warm system, including interval are laid in the keel of surface of wall, and keel are Nian Jie with surface of wall by binding agent, the keel at interval Between lay mineral wool;Panel is laid on keel and mineral wool.Wherein, keel are low thermal conductivity non-metallic plates;Face Plate is inorganic non-metallic material plate.Panel is fixed on keel by self-tapping screw.The present invention has compared with lightgauge steel joist system Have the following advantages:Solves the fixation of keel well using binder materials;Keel are done using low thermal conductivity material to solve Cold bridge problem;With easy for construction, low cost, high insulating effect.In perfect Thistle board filling glass cotton do it is outer within the walls Heat-insulation system, solves key technical problem for the popularization of the system.
For the needs of site operation, it is cast-in-situ thermal-insulated compound that patent CN201410104997.5 discloses a kind of green energy conservation External wall system and its construction method, the filling wall of external wall system connects to be formed in the outside of frame column surrounds the one of frame column system Body formula building enclosure, the embedded filling wall of a frame column part, filling wall is the cast-in-place sandwich wall between panel, light porous There is lightgage steel joist in inorganic core material, the side of lightgage steel joist and the panel of both sides anchor.Set in construction at headwall OR gate window Strengthen keel, layering sets template and placement layer by layer, it is ensured that construction quality.Wall of the present invention is by building external envelope structure and exterior wall Insulation combines together, and recovery industrial waste forms nonflammable light porous inorganic core material as raw material, what its inside was enriched Loose structure makes it have excellent insulation and soundproof effect.
In decorative heat preservation integration field, existing researcher notices the superinsulation performance of aerogel material, and Develop the heat preservation decoration integrative product containing aerogel material.
Patent CN201320623873.9 discloses a kind of building decoration decorative panel, including a decoration motherboard, decorates motherboard Motherboard is decorated using made of an aerogel thermal insulation plate.Patent CN201220273278.2 discloses a kind of exterior-wall heat insulation dress Integrated board structure is adornd, including panel, bottom plate, aeroge core plate and face bottom plate attachment, described aeroge core plate are put Between the panel and bottom plate, and the panel, aeroge core and bottom plate form sandwich style interlayer structure;Described face bottom Plate attachment passes through aeroge core plate, and the face bottom plate attachment is connected with described panel and bottom plate respectively.Patent CN201320665323.3 discloses a kind of Aerogel composite board, including panel, bottom plate and positioned at interlaced shape between the two Into the skeleton of some cavitys, and aerosil is filled in cavity.Patent CN201220017103.5 discloses one kind Heat insulation and decoration integratedization plate, including heat-insulation layer, intervening guard layer and decorative layer;The heat-insulation layer is at dual coating surface Manage the nanoporous aerogel felt layer of layer or the nanoporous aerogel sheet metal layer of dual coating surface-treated layer;The intervening guard layer For anti-cracking plastering screed;The decorative layer is dope layer, top coat layer, curtain wall vitreous brick layer, curtain wall granite building material layer Or non-granite building material layer.Patent CN201220206589.7 discloses a kind of environment-friendly type wood-plastic insulation board, including substrate layer, dress Layer is adornd, the substrate layer is Wood-plastic;Enhancement layer is provided between the wood moulding substrate layer and decorative layer;The enhancement layer Aerosil layer is provided between the wood moulding substrate layer;Bamboo carbon is provided between the enhancement layer and the decorative layer Layer.Patent CN201220663866.7 discloses a kind of heat insulation composite board material, including spaced multiple heat-insulation and heat-preservations Material layer, it is filled in heat-insulation mortar bed between the multiple heat insulating material layer and is arranged on the multiple heat-insulation and heat-preservation material The fiberglass gridding cloth of bed of material both sides.
The disclosure of above patent and application, favorably promote China's light steel-framed composite wall and heat preservation decoration integrative wall The development of body, but still do not use decoration integrated wall of the aerogel material as the compound lightgage steel joist of insulation material.
To play the superthermal insulation performance of aerogel material, the combination property of light steel-framed composite wall, the present invention are lifted Propose the lightgage steel joist heat preservation decoration integrative wall body structure and preparation method of a kind of composite aerogel.
The content of the invention
The present invention proposes the lightgage steel joist heat preservation decoration integrative wall and preparation method of a kind of composite aerogel, including Following steps.
1) laying high-strength panel.
The high-strength panel is to contain fibre-reinforced cement plate or plasterboard.
The high-strength panel is high-strength cement plate or plasterboard containing lightweight aggregate.
The high-strength panel is the nanoporous high-strength cement plate or plasterboard using thixotropy colloid as template.
The light-weight aggregate includes glass bead, expanded perlite, expanded vermiculite, leca, haydites of book structure, flyash ceramic Grain, expanded slag pearl, float stone, scoria, tufa, hollow ceramic microballon, hollow glass microbead, foam glass, foam Ceramics, foamed cement, aeroge.
It is one or more of in the thixotropy colloid, including inorganic thixotropy colloid and organic thixotropy colloid.
The inorganic thixotropy colloid include alumina gel, titanium oxide colloid, zirconium oxide colloid, ferric hydroxide colloid, Vanadic anhydride colloid, entringite colloid, silica-alumina colloid, aluminium-magnesium silicate, lithium magnesium silicate, montmorillonite, Na-bentonite Soil, organobentonite, carclazyte, attapulgite powder, aerosil, aeroge, Silica hydrogel is sheared in advance.It is preferred that entringite glue Body, silica-alumina colloid, aluminium-magnesium silicate, lithium magnesium silicate, carclazyte, attapulgite powder and Silica hydrogel is sheared in advance.
Organic thixotropy colloid include cellulose derivative, starch, gelatin, sodium alginate, casein, guar gum, It is chitosan, Arabic gum, xanthans, soybean protein glue, natural rubber, lanolin, agar, polyacrylamide, polyvinyl alcohol, poly- Acrylates, preferred cellulose derivative, starch, xanthans and polyvinyl alcohol.
The entringite colloid, generated by aluminum sulfate and lime reaction or by calcium aluminate and gypsum reaction generation or by calcium alum Stone flour body mixes with water, is preferably generated by aluminum sulfate and lime reaction.
The silica-alumina colloid, produced by Ludox and Alumina gel, Ludox and Alumina gel be diluted with water, The silica-alumina colloid for being stirred thick.
The pre- shearing Silica hydrogel, be when Ludox retrogradation translates into gel, it is right or after gel is had changed into Silica hydrogel the shear treatment such as is stirred and Silica hydrogel slurry is made.
The cellulose derivative include methylcellulose, carboxymethyl cellulose, ethyl cellulose, hydroxyethyl cellulose, Cyanethyl cellulose, hydroxypropyl cellulose, hydroxypropyl methyl cellulose cellulose.
2) aerogel material is laid.
The aerogel material includes aerogel blanket and aerogel plate
The aeroge includes silica aerogel, alumina aerogels, zirconia aerogels, titania aerogel, carbon The one or more of aeroge.It is preferred that silica aerogel.
Its thickness of the aerogel material is 5 ~ 50mm, and thermal conductivity factor is 0.01 ~ 0.025w/mk, and hydrophobic angle is more than 100 Degree, oise insulation factor are more than 30db.
It is more than 75% in 40 ° of northern areas of latitude and indoor air humidity, or other regional indoor air humidities are more than throughout the year 80% area, should be in step (1) and step(2)Between set vapor barrier layer.
3) lightgage steel joist is laid.
4) high-strength panel is re-layed.
From inside and outside both direction, high-strength panel, aerogel material and lightgage steel joist are connected by tapping screw or anchor studs Connect fixation.
5) finish coat is done on inside and outside high-strength panel.
The decorative layer be wallpaper, coating, emulsion paint, F-C paint, ceramic tile, granite, marble, aluminium-plastic panel, PVC board, Fluorine carbon plate, figure code plate.
Fibre-reinforced cement plate or plasterboard, the high-strength cement plate containing lightweight aggregate or plasterboard, with thixotropy colloid High-strength panel can be made for the nanoporous high-strength cement plate or plasterboard of template.The present invention preferably using thixotropy colloid as Template prepares nanoporous high-strength cement plate or plasterboard, because it has the excellent of low-density and high-strength low thermal conductivity concurrently simultaneously Point, it can further lift the heat-insulating property, sound insulation value and stress performance of light steel-framed composite wall structure.
Here, introduce the mechanism that thixotropy colloid prepares nanoporous high-strength cement plate or plasterboard for template.
Template is called structure directing agent, and stay in place form effect is played in containing Microporous Compounds generating process, and induction is special The generation of structure, widely used organic amine and quaternary ammonium ion are as template in the preparation process of zeolite molecular sieve.
Thixotropy colloid, one kind have the colloid of thixotroping structure, and it has the characteristics that:(1) from there is structure to without structure, Or break that to be applied to the restitution of structure be an isothermal reversible transformation process from structure;(2) architecture is this anti- Multiple conversion is relevant with the time, i.e. the recovery process of structural damage and structure is the function of time.The mechanical strength of structure simultaneously Change is also relevant with the time.In fact, thixotropy is the table of mutual transfer process of the system at a constant temperature between " gel-sol " Existing, for thixotropy colloid, only with mechanical force (shaking etc.), being not required to heating can make gel be changed into colloidal sol;It is not required to cool down, only needs Certain time is stood, and gel is changed into from colloidal sol.
Actually it can be appreciated that thixotropy colloid is the thick colloid between colloidal sol and gel.Colloid it is basic Particle is 1 ~ 100nm, and the nanoporous skeleton with three-dimensional net structure is bound to each other to form between elementary particle, so, letter For list, thixotropy colloid is exactly the toughness material for still having under shearing force nano-porous structure.
When bonding agent and other materials mix with thixotropy colloid, due to colloid toughness and the property sheared, bonding agent It can be evenly dispersed in other materials in colloid, it is more so as to possess the original nanometer of thixotropy colloid until progressively hardening Pore structure.Here it is the template effect that thixotropy colloid in the present invention plays.
Inorganic colloid thixotropic agent typically has bar-shaped or sheet structure, and specific surface area is larger, surface carries electric charge, have compared with Good suspension, gel can be expanded after water suction so as to have gumminess and thixotropy.Wherein alumina gel also has easily scattered The characteristic such as property, water-soluble invertibity, stability.Entringite colloid and silica-alumina colloid study at present it is less, here slightly Introduce.
Entringite colloid, it can be obtained by following reaction:
Al2(SO4)·18H2O+6Ca(OH)2 3CaO·Al2O3·3CaSO4·32H2O
CaO·Al2O3+2CaO+3CaSO4·2H2O+30H2O 3C3A·3CaSO4·32H2O
Silica-alumina colloid, generated by Ludox and Alumina gel reaction, its reaction principle is as follows:
SiO2·nH2O+Al2O3·mH2O Al2O3·SiO2·(m+n)H2O
Under agitation, the entringite colloid of above-mentioned reaction generation and silica-alumina colloid can not grow up, and turn into Finely ground particles, because the entringite colloid in the aqueous solution and silica-alumina colloid have numerous hydration hydroxyls, so that The colloid molecule even suspension that must be generated turns into a kind of thick gel material in aqueous phase.If depending on entringite colloid and Silica-alumina colloid is observation main body, then it is considered that entringite colloid and silica-alumina colloidal solid reunion heap Product is filled with moisture into loose network structure, inside configuration.Experiment shows, entringite colloid and silica-alumina colloid With preferable stability, bottom can not be deposited on up to the several months, also will not recrystallize or be crosslinked and turn into gel, together When also have preferable thixotropy, viscosity can return to just after the entringite colloid and silica-alumina colloid of standing are agitated The level of beginning.
Silica hydrogel is a kind of rigid gel, does not possess thixotropy originally, i.e. Ludox can not pass through after being converted into Silica hydrogel The mode of stirring is transformed into Ludox by Silica hydrogel again.But Silica hydrogel is crisp, and it is thin to be broken into particle under high shear Small Silica hydrogel, these Silica hydrogel surfaces have high activity hydroxyl and and carry electric charge, plus Silica hydrogel inside 90% with upper volume All it is water, so can be greatly different in water, when with bonding agent and other material mixings, it can also play the work of thickening anti-settling With, and serve the effect of certain nanoporous template agent.
In general, inorganic thixotropy colloid has following very unique excellent properties.
1)With good colloidal nano loose structure, can form stabilization has thixotropic sticky aqueous phase colloid substances Matter.
2)There is very high compatibility with all kinds of bonding agents.
3)It is nontoxic compared to organic template, and need not remove in the later stage.
4)Can be with resistance to 800 DEG C of high temperature.
The thixotropic mechanism of cellulose family is that hydrophobic main chain is formed with surrounding water molecules by hydrogen bond in organic thixotropy colloid Close, improve the fluid volume of polymer in itself, reduce the space of Particle free activity, so as to improve system viscosity. The raising of viscosity can be realized by the winding of strand, shows as having high viscosity in static and low sheraing, under high shear for Low-viscosity.Because during static or low shearing speed, cellulose molecular chain is in disordered state and makes system that high viscosity be presented; And in high shear rates, molecule makees ordered arrangement parallel to flow direction, is easy to mutually slide, so system viscosity declines.
Its thixotroping mechanism of polyacrylic thixotropy colloid is that thixotropic agent is soluble in water, quiet by the same sex of carboxylic acid ion Electric repulsion, strand be stretched to by helical form it is bar-shaped, so as to improve the viscosity of aqueous phase.
Although organic thixotropy colloid non-refractory, dosage is few, cheap, can also match somebody with somebody with inorganic thixotropy colloid Close and use, strengthen the effect of template, and voluntarily being decomposed in applied at elevated temperature does not influence product quality.
It is based on above characteristic, thixotropy colloid is chosen as the nanoporous high-strength cement plate or plasterboard of the present invention Template.
The particle diameter of the binder materials such as cement, lime, gypsum is largely distributed in 3 ~ 45 μm, and to form colloid and generally require Below 100nm, here it is why when the ratio of mud of cement is higher, most of cement granules can not suspend in water, and It is directly to sink to bottom.In other words, we can not be by the high-strength cement plate or plasterboard of adding water to obtain compared with low-density Product.Low-density can not be realized, can not just realize and allow high-strength cement plate or plasterboard to possess good heat-proof quality.
When the binder materials such as cement are added in thixotropy colloid, no matter the ratio of cement how much, is sunk all without there is cement Bottom or the phenomenon of reunion, while cement and the material of other additions can be evenly dispersed in whole thixotropy colloid, and lead to Cross in thixotropy colloid the hydration reaction occurred and form a large amount of high-strength water with similar thixotropy colloidal nano loose structure Mud plate or plasterboard material.Aqueous phase inside thixotropy colloid can not only promote the aquation of cement class bonding agent, while can also Reach the effect of cement curing in water, thixotropy colloid because can uniformly carry respectively containing nano-particle reactivity height, micropore High hydrated cementitious intensity, shorten demoulding time.
Therefore, thixotropy colloid is the high-strength cement plate or plasterboard of template because of a large amount of similar aerogel materials of inside Nano-porous structure and there is excellent heat-proof quality, and with high intensity, lightweight the characteristics of, realize stress heat-insulating integral Change.
In face of the energy crisis being on the rise, country proposes more preferable requirement to building energy conservation, from the energy-conservation of early stage 50%, to energy-conservation 65%, then to 75% or even 85%, some low-carbons building, passive type building continue to bring out for lifting.Aerogel material is made For the super insulating material that current thermal conductivity factor is minimum, and high-strength cement plate or plasterboard are compound can be obviously improved assembled wall The heat-insulating property of body, thickness, the volume and weight of significantly reduced wall, particularly with thixotropy colloidal nano loose structure The efficient energy-saving heat-preservation effect of severe cold area can be obviously improved after high-strength cement plate or plasterboard are compound.
Crisp in view of aerogel material, intensity is relatively low, and when aeroge and lightgage steel joist compound tense, outer layer adds a height again Strong panel is necessary.
Decorative layer is done in high-strength cement plate or plasterboard outer surface, the aesthetics and comfort level of wall can be lifted, is improved Visual experience and experience of living.
Beneficial effect.
1) implementation of the invention, using the superthermal insulation performance of aerogel material, it is obviously improved existing lightgage steel joist insulation Decoration integrated energy-saving effect, the thickness and space-consuming of wall are reduced, after the completion of being prefabricated in the factory, can assembled at the scene, It is particularly suitable for housing industrialization project and green building project.
2) nanoporous high-strength cement plate or plasterboard of the present invention using thixotropy colloid as template, intensity up to 10 ~ 50MPa, thermal conductivity factor are 0.1 ~ 0.4w/mk, dry density<2000kg/m3, do not ftracture, not efflorescence, reality high-strength cement plate Or the integration of plasterboard high-strength light high heat preservation performance.
3) aeroge lightgage steel joist heat preservation decoration integrative wall body structure of the present invention, crucial heat insulating material is used as using aeroge Material, is stress knot itself to possess nanoporous high-strength cement plate or plasterboard of the thixotropy colloid of heat-insulating property as template Structure, both combinations among the strong ones, the heat insulation effect and energy-saving horizontal of severe cold area can be obviously improved.
4) batch production Prefabrication, aerogel material is avoided by easy effusion dust in conventional vacuum construction process Influence to job site and workers ' health, and it is damaged in use to advantageously reduce aerogel material, to greatest extent Play the superthermal insulation performance of aerogel material.
Embodiment
The specific implementation of the lightgage steel joist heat preservation decoration integrative assembled wall body structure of composite aerogel is provided below Mode, as the present invention is described in more detail.
Embodiment 1.
1)Laying high-strength panel.By water 175kg, cement 461kg, sand 512kg, glass fibre 50kg, noted after mixing Enter grinding tool, surface is levelling, natural curing 28d, obtains fiber reinforced cement board.
2)The silica aerogel felt of 10mm thickness is laid on high-strength panel.Aerogel blanket is fixed by anchor studs.
3)Lay lightgage steel joist.
4)Re-lay high-strength panel.
High-strength panel presses step 1)It is prepared by method.Fixed by anchor studs.
5)Decorative layer is done in load-bearing concrete and enhancement layer outer surface.Load-bearing concrete and enhancement layer outer surface decorative layer are equal For coating.
Embodiment 2
1)Laying high-strength panel.By water 150kg, cement 300kg, light weight sand 400kg, floating bead 400kg, fiberglass fiber 60kg, Grinding tool is injected after mixing, surface is levelling, natural curing 28d, obtains fiber reinforcement light-weight aggregate cement plate.
2)The silica aerogel plate of 10mm thickness is laid on high-strength panel.Laid between aerogel plate and high-strength panel Vapor barrier layer.Aerogel blanket is fixed by anchor studs.
3)Lay lightgage steel joist.
4)Re-lay high-strength panel
High-strength panel presses step 1)It is prepared by method.Fixed by anchor studs.
5)Decorative layer is done in load-bearing concrete and enhancement layer outer surface.It is fluorine carbon that decorative layer is done in load-bearing concrete outer surface Paint, enhancement layer outer surface decorative layer is wallpaper.
Embodiment 3.
1)Laying high-strength panel.Take 65kg aluminum sulfate to be dissolved in 200kg water, prepare aluminum sulfate solution, take 23kg quick limes molten In 200kg water, limewash is prepared.Limewash is placed in container, aluminum sulfate is slowly added in the case where 300r/min is stirred Solution, until pH value be 7.2, obtain translucent entringite colloid.Premix siccative is formulated as follows and mixed:Portland cement 40kg, gypsum 360kg, fine sand 500kg, glass bead 80kg, silicon powder 12kg.Glass fibre 50kg and waterproofing agent 1kg are added Enter the entringite colloid made, premix wet feed is made after stirring 15min, adds premix siccative, continues to stir 18min.By institute Obtaining concrete slurry and pour into mould, reinforcing bar built in grinding tool, bar diameter 16mm spacing 200mm, surface is levelling, natural curing 28d, Obtain the nanoporous plasterboard that entringite colloid is template, compression strength 21Mpa, thermal conductivity factor 0.20w/mk.
2)The silica aerogel felt of 10mm thickness is laid on high-strength panel.Aerogel blanket is fixed by anchor studs.
3)Lay lightgage steel joist.
4)Re-lay high-strength panel.
High-strength panel presses step 1)It is prepared by method.Fixed by anchor studs.
5)Decorative layer is done in load-bearing concrete and enhancement layer outer surface.It is fluorine carbon that decorative layer is done in load-bearing concrete outer surface Plate, enhancement layer outer surface decorative layer is emulsion paint.
Embodiment 4.
1)Laying high-strength panel.Take 100kg aluminium-magnesium silicates and methylcellulose 1kg add water 500kg, soak 24h, then with The 1400r/mim scattered 6h of speed shearing, is made sticky aluminium-magnesium silicate-methylcellulose thixotropy colloid.Siccative is premixed by such as Lower proportioning mixes:Portland cement 450kg, gypsum 10kg, floating bead 200kg, flyash 80kg, diatomite 10kg.Premix Wet feed is mixed by following proportioning:Aluminium-magnesium silicate-methylcellulose thixotropy colloid 540kg, glass fibre 40kg, shepardite Fiber 15kg, waterproofing agent 1kg.Premix siccative is mixed with premix wet feed, gained slurry pours into mould, and surface is levelling, thin After film maintenance 28d, the nanoporous high-strength cement plate that aluminium-magnesium silicate-methylcellulose colloid is template, compression strength are obtained 21MPa, thermal conductivity factor 0.19w/mk.
2)The alumina aerogels plate of 15mm thickness is laid on high-strength panel.Aerogel plate is fixed by anchor studs.
3)Lay lightgage steel joist.
4)Re-lay high-strength panel.
High-strength panel presses step 1)It is prepared by method.Fixed by anchor studs.
5)Decorative layer is done in load-bearing concrete and enhancement layer outer surface.It is ceramic tile that decorative layer is done in load-bearing concrete outer surface, Enhancement layer outer surface decorative layer is F-C paint.
Aerogel material, lightgage steel joist, decorative layer are to sell product in the market in above example.
The above described is only a preferred embodiment of the present invention, any type of limitation is not done to the present invention.It is every Any simple modification, equivalent change and modification that technology and method according to the present invention are substantially made to above example, still Belong in the range of the technology and method scheme of the present invention.

Claims (10)

1. a kind of preparation method of the lightgage steel joist heat preservation decoration integrative wall of composite aerogel, it is characterized in that, the preparation side Method comprises the following steps:
(1)Laying high-strength panel;
The high-strength panel is the nanoporous high-strength cement plate or plasterboard using thixotropy colloid as template;
The thixotropy colloid, including inorganic thixotropy colloid or organic thixotropy colloid;
The inorganic thixotropy colloid includes alumina gel, titanium oxide colloid, zirconium oxide colloid, ferric hydroxide colloid, five oxygen Change two vanadium colloids, entringite colloid, silica-alumina colloid, aluminium-magnesium silicate, lithium magnesium silicate, montmorillonite, sodium bentonite, One or more in organobentonite, carclazyte, attapulgite powder, aerosil, aeroge, pre- shearing Silica hydrogel;
Organic thixotropy colloid includes cellulose derivative, starch, gelatin, sodium alginate, casein, guar gum, crust Amine, Arabic gum, xanthans, soybean protein glue, natural rubber, lanolin, agar, polyacrylamide, polyvinyl alcohol, polypropylene One or more in hydrochlorate;
(2)Lay aerogel material;
The aerogel material includes aerogel blanket or aerogel plate;
The aeroge includes silica aerogel, alumina aerogels, zirconia aerogels, titania aerogel, carbon airsetting The one or more of glue;
(3)Lay lightgage steel joist;
(4)Re-lay high-strength panel;
From inside and outside both direction, high-strength panel, aerogel material and lightgage steel joist are connected admittedly by tapping screw or anchor studs It is fixed;
(5)Finish coat is done on inside and outside high-strength panel;
The finish coat includes wallpaper, coating, emulsion paint, F-C paint, ceramic tile, granite, marble, aluminium-plastic panel, PVC board, fluorine Carbon plate, figure code plate.
2. preparation method according to claim 1, it is characterized in that step(1)The inorganic thixotropy colloid includes entringite One in colloid, silica-alumina colloid, aluminium-magnesium silicate, lithium magnesium silicate, carclazyte, attapulgite powder and pre- shearing Silica hydrogel Kind is several.
3. according to the preparation method described in claim 1, it is characterized in that step(1)The entringite colloid, by aluminum sulfate and lime Reaction generation is reacted generation with gypsum by calcium aluminate or mixed by entringite powder with water.
4. preparation method according to claim 1, it is characterized in that step(1)The silica-alumina colloid, it is molten by silicon Glue produces with Alumina gel, Ludox and Alumina gel is diluted with water, the silica-alumina colloid for being stirred thick.
5. preparation method according to claim 1, it is characterized in that step(1)The pre- shearing Silica hydrogel, is in Ludox When retrogradation translates into gel, or after gel is had changed into, shear treatment is stirred to Silica hydrogel Silica hydrogel slurry is made Material.
6. preparation method according to claim 1, it is characterized in that step(1)The machine thixotropy colloid spreads out including cellulose One or more in biology, starch, xanthans and polyvinyl alcohol.
7. preparation method according to claim 1, it is characterized in that step(1)The cellulose derivative includes Methyl cellulose Element, carboxymethyl cellulose, ethyl cellulose, hydroxyethyl cellulose, cyanethyl cellulose, hydroxypropyl cellulose, hydroxypropyl methyl One or more in cellulose fibre element.
8. preparation method according to claim 1, it is characterized in that step(2)The aerogel material its thickness is 5 ~ 50mm, thermal conductivity factor are 0.01 ~ 0.025w/mk, and hydrophobic angle is more than 100 degree, and oise insulation factor is more than 30db.
9. preparation method according to claim 1, it is characterized in that step(2)The aerogel material includes silica airsetting One or more in glue, alumina aerogels, titania aerogel.
10. a kind of lightgage steel joist heat preservation decoration integrative wall of composite aerogel, it is characterized in that, the wall from outside to inside by with Lower part is formed:Finish coat(1), high-strength panel(2), aerogel material(3), lightgage steel joist(4), high-strength panel(5), finish coat (6);The high-strength panel is the nanoporous high-strength cement plate or plasterboard using thixotropy colloid as template.
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