CN106118307A - A kind of building coating with heat-insulation and heat-preservation function and preparation method thereof - Google Patents

A kind of building coating with heat-insulation and heat-preservation function and preparation method thereof Download PDF

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CN106118307A
CN106118307A CN201610521874.0A CN201610521874A CN106118307A CN 106118307 A CN106118307 A CN 106118307A CN 201610521874 A CN201610521874 A CN 201610521874A CN 106118307 A CN106118307 A CN 106118307A
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heat
coating
insulation
slurry
building
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马承银
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马承银
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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K13/00Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
    • C08K13/06Pretreated ingredients and ingredients covered by the main groups C08K3/00 - C08K7/00
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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
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    • C08K3/16Halogen-containing compounds
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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/18Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20Oxides; Hydroxides
    • C08K3/22Oxides; Hydroxides of metals
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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/30Sulfur-, selenium- or tellurium-containing compounds
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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
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    • C08K3/34Silicon-containing compounds
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    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/34Silicon-containing compounds
    • C08K3/346Clay
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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
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    • C08K3/36Silica
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    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K9/00Use of pretreated ingredients
    • C08K9/10Encapsulated ingredients
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    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D133/00Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
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    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/004Reflecting paints; Signal paints
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    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40Additives
    • C09D7/60Additives non-macromolecular
    • C09D7/61Additives non-macromolecular inorganic
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    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40Additives
    • C09D7/60Additives non-macromolecular
    • C09D7/61Additives non-macromolecular inorganic
    • C09D7/62Additives non-macromolecular inorganic modified by treatment with other compounds
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/16Halogen-containing compounds
    • C08K2003/162Calcium, strontium or barium halides, e.g. calcium, strontium or barium chloride
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/18Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20Oxides; Hydroxides
    • C08K3/22Oxides; Hydroxides of metals
    • C08K2003/2237Oxides; Hydroxides of metals of titanium
    • C08K2003/2241Titanium dioxide
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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/30Sulfur-, selenium- or tellurium-containing compounds
    • C08K2003/3045Sulfates

Abstract

A kind of building coating with heat-insulation and heat-preservation function and preparation method thereof, the described building coating with heat-insulation and heat-preservation function is divided into interior wall coating and exterior coating, is formed by coating film forming underlying carrier, heat-barrier material, heat-reflecting material, thermal-radiating material, filler, auxiliary agent and water.Described preparation method, prepares including heat-barrier material slurry, the preparation of functional material slurry, the grinding of slurry, paint.Building coating film forming thickness of the present invention is 0.2~0.3mm, belongs to the Energy-Saving Architectural Coatings of scumbling type;Inner, external wall building coating of the present invention has higher thermal conduction resistance and relatively low convection heat transfer' heat-transfer by convection, has different thermal radiation effects, have heat insulation and heat insulation function under Various Seasonal temperature environment;Building coating safety of the present invention is high, service life is long;Preparation method of the present invention is simple, it is adaptable to industrialized production.

Description

A kind of building coating with heat-insulation and heat-preservation function and preparation method thereof
Technical field
The present invention relates to a kind of building coating and preparation method thereof, be specifically related to the outer face of wall of a kind of coated architectural with There is after exterior wall inner surface building coating of heat-insulation and heat-preservation function and preparation method thereof.
Background technology
China's existing building about 50,000,000,000 square metres, the building of more than 95% belongs to high energy consumption compared with developed countries and builds Build.And China's building energy consumption accounts for about the 30% of society's total energy consumption, and building energy consumption has the trend of growth every year.Building energy Consumption includes architecture construction energy consumption and building Energy in use, and wherein architecture construction energy consumption is disposable energy consumption, builds Energy in use Belong to annual energy consumption, build the Energy in use in validity period compared with its construction energy consumption bigger, therefore, build Energy in use Become the main aspect of building energy consumption.Building Energy in use is mainly reflected in: in order to maintain the air-conditioning of the Thermal comfort of indoor Refrigeration and the energy consumption of heating energy consumption, illumination, household electrical appliances, office facility etc., wherein, build refrigeration and account for total energy consumption with heating energy consumption More than 50%.
Building refrigeration is through architectural exterior-protecting construction with heating energy consumption and is lost to the energy consumption of external environment, builds if improved Building insulation and the thermal insulation of building enclosure, architectural energy consumption will reduce.Architectural exterior-protecting construction includes exterior wall, outer door and window, roof And ground, wherein, exterior wall energy consumption accounts for the 30~40% of building energy consumption.Therefore, the building energy conservation of external wall becomes building energy conservation Importance.
Building energy conservation is the importance of energy-saving and emission-reduction, and building energy conservation includes that construction material is energy-conservation and uses energy-conservation with building. The energy-conservation ultimate principle utilizing conduction of heat exactly of architectural exterior-protecting construction, during building uses, ties by changing building maintenance The diabatic process of structure, reduces the heat output of architectural exterior-protecting construction unit are, reaches to reduce the purpose of energy consumption.The conduction pattern of heat There are heat conduction, convection current, radiation three kinds.Heat conduction is by the heat transfer that directly contact occurs between solid objects, the heat of transmission and its Between thermal resistance be directly proportional (thermal resistance is relevant to thickness with the heat conductivity of material) be directly proportional to the temperature difference, the insulation material of foam class is just It it is typical barrier insulation material.China's building external wall energy-saving through the practice of more than 20 years, develop polymeric foamable material, The heat insulation system of the thick insulation layers such as inorganic foamed material;Also has the insulating mold coating system of hollow beads the same period;Now Widely used styrofoam and thermal insulation mortar heat-insulation system, it is simply that according to increasing the insulation material layer thickness of body of wall and reducing insulation The heat-insulation system of the isolation-type of the thermal conduction mechanism design of material thermal conductivity;But, all there is insulation layer thickness big, construction is multiple Miscellaneous, heat-insulation layer exist ftracture, leak, come off, the defect of the different types of potential safety hazard such as fire.Convection heat transfer' heat-transfer by convection is fluid flowing During the heat exchange that carries out, the flowing weakening fluid the most just decreases heat output.Heat radiation is any temperature thing higher than 0K The photothermal phenomenon that body has, is the heat transfer carried out by electromagnetic radiation, and radiant heat transfer need not heat transfer medium and just can Carrying out, the radiant heat transfer between object is usually photothermal reflection, absorbs and pass through.The radiations heat energy of object becomes with radiance Direct ratio, is directly proportional to the biquadratic of temperature, and the thermal emissivity rate of change object and the temperature residing for object all can change the energy of building Consumption.
The energy-saving building materials of isolation-type is to reduce the heat conduction energy-saving material as know-why, develop and use skill now Art is the most ripe, and is widely used in engineering, but insulation layer thickness is big, construction complexity, there is the defects such as potential safety hazard and constrains The development of energy-saving material.Comparatively speaking, convection heat transfer' heat-transfer by convection, the energy-saving building materials research and development side of minimizing radiant heat transfer are being reduced Face is the weakest, becomes the new direction of energy-saving building materials research.For the system of multiple energy-saving building materials, need exploitation badly Easy construction, good energy-conserving effect, safety height, outer wall heat insulating system that length in service life, insulation material consumption are few, and meet The best of these requirements is exactly coating system.
The building coating that reflective heat-insulation paint is know-why exploitation with reflected solar radiation heat, Main Function is to completely cut off too Sun radiant heat, reaches to reduce building energy consumption for cooling, but, the Winter protection effect bad adaptability to building.Building energy conservation now Market demand can meet the heat insulation of summer, can meet again the building coating of the insulation in winter.The energy-conservation painting of present radial pattern Material mainly megathermal system, the at high temperature radiance of the E material in coating is high, can improve coating high-temp infrared Radiation efficiency, increases the energy-saving effect of firing equipment.There is the coating of infra-red radiation energy-saving effect just like Qiu Zifan etc. under room temperature People (the sub-model in mound etc. the preparation of multi-functional composite inner wall thermal insulation coatings of new generation. modern coatings and application, 2014,17 (5) .) Disclose a kind of with aqueous pure acrylic acid polymer, kieselguhr, forsterite powder, nano tin dioxide, borosilicic acid rock cenosphere, Hydrotalcite powder and magnesium sulfate are that heat-insulation composite material and pigment prepare high insulating effect, environmental protection, resistant with multiple coating auxiliary agent Stain, low cost multi-functional composite inner wall thermal insulation coatings, although this kind of coating adds the composition of infra-red radiation effect, still belong to Thick painting property (more than coating thickness 1mm) coating of barrier, and it is only used for interior wall, the exterior wall of the strong solar radiation in summer is not had There is the barriering effect to solar radiation.And, do not solve the heat insulation system of solar radiation problem, be only to increase wall-body energy saving The exterior wall of thermal resistance (thickness of heat-insulation layer), indoor temperature can be higher, and the air conditioning energy consumption in summer increases more, cold to China Xia Redong Not only there is no energy-saving effect with hot summer and warm winter region, be also possible on the contrary make building energy consumption bigger.
Also have a class reflective insulation Energy-Saving Architectural Coatings, be with reflecting sun heat radiation for mechanism develop based on heat insulation Syllabus architectural reflective heat-insulation paint, and in architectural reflective heat-insulation paint, add hollow glass microbead etc. to improve insulation Property hollow beads reflective heat-insulation paint, as Liu Chenglou et al. (Liu Chenglou etc. the development of thin layer exterior wall nanometer heat isolation paint. be coated with Material digest and technology, 2014,35 (7) .) disclose one with self-crosslinking acrylic emulsion as film forming matter, with SiO2Aeroge, Hollow glass micropearl, aluminium silicate fiber peacekeeping Kaolin etc. are filler, are prepared from the heat insulation painting of exterior wall under the cooperation of multiple auxiliary agent Material.Its insulating mechanism is still that the thermal insulation coatings to increase the thermal resistance thick coated type as know-why, due to the particle diameter of glass microballoon Greatly, heat conductivity high, heat insulation effect is undesirable.And this kind of coating is also only used for the insulation of interior wall, the strong sun to summer The exterior wall of radiation does not has effect of heat insulation actively.
CN1850922A discloses a kind of environmental protection and energy saving thermal-insulated external-wall coating, is with polyvinyl alcohol water solution, polyacrylic acid Binding agent, cellulose, wollastonite in powder, sea bubble powder, asbestos fibre, expanded perlite and water are to be sufficiently stirred for after raw material mixes, shape Become stiff shape slurry to be directly painted on the thermal insulation coatings of body of wall, be the typical case of a kind of inorganic material based on low thermal conductivity The heat insulating coatings of thermal-insulating type.Its know-why is the heat insulation system of barrier, although be that the mode using coating is constructed, Construction thickness is 10~40mm, and coating layer thickness can not be can be regarded as more than 0.5mm in principle is coating, can only be referred to as thermal insulation mortar, Its performance is namely suitable with thermal insulation mortar.
CN104017495A discloses a kind of compound insulating moulding coating, conceptually devises reflection, radiates, intercepts three kinds Heat insulation mode, in the coating of one, have employed the functional materials such as nano titanium oxide, antioxygen age resistor, ultraviolet (UV) resistant agent, by it Composition understands, and this coating can not realize being provided simultaneously with reflecting, radiates, intercept three kinds of effect of heat insulation.
CN104017412A discloses a kind of insulating moulding coating, conceptually devises reflection, radiates, intercepts three kinds of heat insulation sides Formula, in the coating of one, have employed the functional materials such as sodium chloride, PVC, bamboo powder, silicon dioxide, and from its composition, this coating is also Can not realize reflecting simultaneously, radiate, intercept three kinds of effect of heat insulation.
CN104212218A discloses a kind of reflective heat-insulation paint, mainly by controlling solar reflectance, infrared spoke Penetrate rate and thermal conductivity obtains height reflection, high radiation, the coating material of high thermal resistance.This insulating moulding coating system is divided into putty, priming paint, face Paint, the putty layer of thickness 1~3cm is thermal barrier layer, and priming paint uses triple superphosphate, titanium dioxide, aluminium silicate, mica powder functional material, face Paint uses titanium dioxide, angstrom health infrared emission powder functional material, priming paint and finish paint to be high reflection, high radiating layer.But its high thermal resistance depends on It is so that the putty using thickness to be coated with realizes, is a class cladding thermal insulation coatings system.
CN103666146B discloses the preparation method of a kind of reflective radiant barrier type outer wall heat-insulating coating, be to reflection, The improvement that radiation, three kinds of heat insulation modes of obstruct are carried out in outer wall building coating integrally and preparation method.Its reflecting material used Material is the titanium dioxide processed through silicon dioxide/or alumina-coated, and heat radiation filler is oxide or the nucleocapsid of rare earth element The paraffin micropowder of structure, heat-barrier material is hollow glass micropearl or organic resin expandable microspheres.But, one, hollow glass Microsphere is frangible, in production process can not strong stirring, the dispersibility of coating composition can be affected;Its two, heat rejection hollow glass is micro- Ball and polymer microballoon be particle diameter be the microsphere of 40~100 microns, wherein, the internal diameter of microsphere hollow space is 35~90 microns, About free path 70nm much larger than tiny balloon internal gas warm-up movement, its convection heat transfer' heat-transfer by convection still exists, and affects its heat insulation effect Really.
It addition, some enterprise is referred to as coating the construction material that coating method can be used to construct now, this is not Science, be also irrational.Building thermal-insulating coating, building heat preservation putty and building heat-insulating mortar and building heat preservation complex layer coating Being different insulation material systems, its exterior structure and construction technology, insulation are diverse with effect of heat insulation.It is incubated greasy Son, thermal insulation mortar, complex layer coating etc. use thickness typically 1~3cm, use multipass construction technology could form the insulation of thickness Layer.Defining from the strict sense, coating is to be applied to body surface, can be formed and have protection, decoration or the solid-state of specific function One class I liquid I of continuous film or solid chemical materials (seeing " chemical industry dictionary ", Yao Huqing edits, Chemical Industry Press, The 5th edition, Beijing of in May, 2014 page 935 " coating " entry), thin film coating thicknesses should≤0.3mm.
Summary of the invention
The technical problem to be solved is, overcomes the drawbacks described above that prior art exists, it is provided that a kind of construction letter Just, good energy-conserving effect, safety is high, the scumbling type of length in service life has heat-insulation and heat-preservation function building coating.
The present invention to solve the technical problem that it is to overcome the drawbacks described above that prior art exists, it is provided that Yi Zhonggong further Skill is simple, it is adaptable to the preparation method of the building coating with heat-insulation and heat-preservation function of industrialized production.
The technical solution adopted for the present invention to solve the technical problems is as follows: a kind of building with heat-insulation and heat-preservation function is coated with Material, is divided into interior wall coating and exterior coating, by coating film forming underlying carrier, heat-barrier material, heat-reflecting material, heat radiation material Material, filler, auxiliary agent and water composition.
Further, described in have in the building coating of heat-insulation and heat-preservation function, each raw material components is in described building coating Parts by weight are: coating film forming underlying carrier is 50 parts, heat-barrier material 1~8 parts (preferably 3~6 parts), heat-reflecting material 5~ 20 parts (preferably 8~18 parts), thermal-radiating material 3~25 parts (preferably 5~20 parts), filler 1~30 parts (preferably 2~15 parts), help Agent 0.5~2.0 parts (preferably 0.8~1.2 part).The consumption of water is generally 30~70 parts, actually used in can according to coating stick The different requirement of degree is adjusted.
Further, described coating film forming underlying carrier be interior wall with or exterior wall polymer resin emulsion;Wherein, in described Wall resin emulsion is styrene-acrylic resin emulsion, emulsion acrylic resin, ethylene-vinyl acetate copolymer resin emulsion, poly-acetic acid One or more in vinylester resin emulsion, organosilicon acrylic resin emulsion or ester-polyurethane resin emulsion etc.;Described exterior wall resin breast Liquid is in pure third resin emulsion, organosilicon acrylic resin emulsion, fluorocarbon resin emulsion, styrene-acrylic resin emulsion or ester-polyurethane resin emulsion etc. One or more, described exterior wall resin emulsion good weatherability.Energy-Saving Architectural Coatings of the present invention is by coating film forming underlying carrier Various functional materials and filler etc. being fitted in the slurry form of easily coating, the performance of selected film forming underlying carrier wants energy Enough meet every physical and mechanical properties of building coating, chemical proofing, ageing-resistant performance etc..
Further, described heat-barrier material is the silica aerosil microballoon with sealed porosity;Described silicon dioxide The sealed porosity of aerogel microball is 10~100nm levels (preferably 20~70nm levels);Described silica aerosil microballoon close Degree is 30~100kg/m3(preferably 40~80 kg/m3).Aerosil belongs to lightweight pressed powder, has high hole Rate, its solid skeletal and internal void have low heat conductivity, low convection heat transfer' heat-transfer by convection and suitable infrared radiation temperature, are suitable for making Functional material for architectural heat insulation coating.It has low convection heat transfer' heat-transfer by convection sex expression and exists, and the closing aperture of selection is 10~100 The silica aerosil microballoon of nm, its average pore size is about between 20~40 nm, owing to aperture is less than being enclosed in silicon dioxide Air molecule mean free path 69 nm in aeroge, limits the motion of air molecule therein, significantly reduces hole Interior gas phase convection heat transfer' heat-transfer by convection;It is present that it has suitable infrared thermometer, when temperature is-50~80 DEG C, and silicon dioxide Aeroge has the function stopping that wavelength is 3~8 μm infrared emanations.
Silica aerosil microballoon is except serving as the heat rejection framing structure of energy-saving coating in building coating of the present invention Outward, its material with the high reflection with high radiation that silicon dioxide had light-proofness with the use of so that silicon dioxide airsetting Glue has more preferable hot light combination property.
Further, described heat-reflecting material is titanium dioxide, coated by titanium dioxide Muscovitum, barium sulfate, antimony oxide, oxygen Change one or more in aluminum or zinc oxide etc.;Wherein, in exterior coating, described titanium dioxide is the dioxy of Rutile structure Change titanium;In interior wall coating, described titanium dioxide is the titanium dioxide of rutile-type or anatase structures.Described heat-reflecting material is The material of heat reflectivity >=80%.Titanium dioxide disclosed in the described preferred ZL200710035834.6 of coated by titanium dioxide Muscovitum Cladding Muscovitum reflection heat ray composite.The application of high heat reflectivity material in building coating of the present invention, can be by solar radiation Heat returns to outer space to realize building surface cooling effect;Particularly, selected titanium dioxide and coated by titanium dioxide Muscovitum, is all higher than 85% to the heat ray reflectance of 400~2500nm wavelength of solar radiation.
The area surroundings temperature of human living is about-50~40 DEG C, and the comfortable temperature of indoor environment 15~30 DEG C, in order to tie up Hold indoor environment temperature it is necessary to architectural exterior-protecting construction is thermally shielded and is incubated, to this end, except increase construction wall thermal resistance, Outside increase metope is to solar radiation reflectivity, reasonable selection thermal-radiating material is particularly significant to building energy conservation.Red according to material Outer heat radiation is not continuous print at infrared band, and different materials has higher thermal emissivity rate at some specific band, the most just It is that there is under some specified temp higher thermal emissivity rate.Therefore, it can the heat needing to select to be suitable for according to radiation temperature Radiative material.Object, while external radiation, also absorbs the energy come from other object radiations.Fixed according to kirchhoff radiation Rule, object thermal emissivity rate is equal to its thermal absorptivity.
Further, in interior wall coating, described thermal-radiating material is aluminic acid magnesium carbonate, aluminium sesquioxide, Pulvis Talci or silicic acid One or more in magnesium etc..Described thermal-radiating material, when indoor air temperature 15~30 DEG C, has higher absorption chamber interior-heat spoke Penetrate characteristic, also there is higher heat radiation simultaneously.So, inner wall surface will be transmitted to inner wall surface thermal radiation absorption, and coating is again to room The heat energy that interior space radiation absorbs, prevents indoor heat to pass wall and is transmitted to outdoor.
Further, in exterior coating, described thermal-radiating material is a class of following three apoplexy due to endogenous wind or a few class: infrared emission powder; With the one in barium sulfate, calcium sulfate, calcium fluoride, Afluon (Asta), magnesium silicate, calcium silicates, aluminium silicate, magnesium carbonate or calcium carbonate etc. or The metallic salt of several compositions;Layer structure with one or more compositions in Pulvis Talci, mica powder or aluminic acid magnesium carbonate etc. Powder body class.Described thermal-radiating material is when temperature > 30 DEG C, and thermal emissivity rate is higher, and during temperature < 15 DEG C, thermal emissivity rate is relatively low. The thermal radiation property of exterior coating requires when temperature > 30 DEG C, has relatively high radiant rate, to accelerate the heat radiation of body of wall, reduces too The accumulation of sun heat radiation heat, thus reduce exterior wall surface temperature, reduce exterior wall to indoor heat transfer;And temperature < 15 DEG C Time, it is desirable to there is relatively low-E, lost to reduce the heat radiation of body of wall, reduce indoor to the heat transfer of exterior wall.
Further, one or more during described filler is mica powder, dicalcium powder or calcined kaolin etc..Filler main Effect is to increase the volume of coating, solid sense, reduction cost etc..
Further, described auxiliary agent is biocide mildewcide, dispersant, wetting agent, defoamer, coalescents, levelling agent or increasing One or more in thick dose of grade.Described auxiliary agent mainly adds with making it have application property for the coating system that preparation is stable , auxiliary agent kind is identical with conventional emulsion paint with consumption.
The present invention solves its technical problem further and be the technical scheme is that a kind of have building of heat-insulation and heat-preservation function Build the preparation method of coating, comprise the following steps:
(1) prepared by heat-barrier material slurry: is mixed with dispersant, wetting agent and the defoamer as auxiliary agent by water, is stirred Dispersion, under low rate mixing, adds the silica aerosil microballoon of the powder as heat-barrier material, when the two of powder After the whole moistening of silica aerogel microsphere, high-speed stirred, obtain heat-barrier material slurry;
(2) preparation of functional material slurry: using water and dispersant, wetting agent, defoamer, coalescents and the sterilization as auxiliary agent Antifungus agent mixes, and low rate mixing disperses, and sequentially adds heat-reflecting material, thermal-radiating material and filler, and moderate-speed mixer is by powder Moistening, then high-speed stirred, obtain functional material slurry;
(3) grinding of slurry: step (1) gained heat-barrier material slurry and step (2) gained functional material slurry are mixed, stirs It is ground after mixing uniformly;
(4) paint: in the mixed slurry after step (3) is ground, adds coating film forming underlying carrier resin breast under low rate mixing Liquid, adds the defoamer as auxiliary agent, thickening agent and levelling agent, after moderate-speed mixer is uniform, stands froth breaking, toning, sieves, meter Amount, packaging,.
Owing to aerosil density is extremely low, it is necessary to re-use after being individually dispersed into slurry, and other powder body material Also redispersion form slurry after should first mixing, the slurry after dispersion remixes and is just more prone to respectively, the good dispersion of product.
Further, in step (1), high-speed stirred to heat-barrier material aggregation is dispersed into the tiny grain of 0.5~2.0 μm Son.Aerosil is disperseed, can strengthen while coating coating strength, reduce its heat conductivity: (1) block two Silica aerogel is frangible, intensity is low, and frame strength is low, affects the performance of coating, and if being crushed by aerosil, dividing Dissipating and grind, making the microsphere of particle diameter 0.5~2.0 μm, the comprcssive strength of particle increases;The coatings of preparation is formed Film, there are about 100 layers of silica aerogel particles and piles up in formation insulation coating.(2) aerogel material has extremely low Density and coating in complicated aeroge packed structures, add the complexity of heat transmission route, extend heat Via the heat-transfer path of solid transmission, thus more much lower than the heat conductivity of conventional porous heat-barrier material.
Further, in step (1), (2), (4), the speed of described low rate mixing is 100~200 turns/min.
Further, in step (2), (4), the speed of described moderate-speed mixer is 400~800 turns/min.
Further, in step (1), (2), the speed of described high-speed stirred is 900~1200 turns/min.
Further, in step (2), in high-speed stirred to slurry, particle diameter is 10~20 μm.
Further, in step (3), it is ground to particle diameter≤10 μm in slurry.
Further, in step (4), moderate-speed mixer to slurry viscosity is adjusted to 80~110KU.
Further, in step (1), the consumption of described water is 4~9 times of heat-barrier material quality.
Further, in step (2), the consumption of described water is heat-reflecting material, thermal-radiating material and filler three's gross mass 0.5~0.8 times.In each step of the inventive method, prepare the dispersant used by slurry, wetting agent, defoamer etc. and routine Building coating is identical, and its consumption is without strict distribution.
The present invention has the exterior coating in the building coating of heat-insulation and heat-preservation function and interior wall coating, is all painting coating, Brushing, roller coating, the method for spraying can be used to construct according to the construction method of water paint painting coating during construction.Right After construction wall surface to be constructed is cleared up according to routine, leveling, Puttying, priming, interior wall of the present invention or outer of finally constructing Wall coating.Construction thickness is identical with normal building external paint, generally 0.2~0.3mm.
Building coating of the present invention has the principle of heat-insulation and heat-preservation function:
(1) low thermal conductivity and the hollow nanostructures of the gas closed in the hollow nanostructures of aerosil are utilized Convection heat transfer' heat-transfer by convection is reduced less than the free path of gas molecule convective motion;
(2) utilization has the material of high reflectance to heat radiation, reduces the thermal absorptivity of dope layer, reduces surface temperature;
(3) utilizing high-heating radiation material, the infrared radiant energy that coating is absorbed outwards dissipates with thermal-radiating form, reduces heat radiation Penetrate insulation coating.
The existing heat insulation effect of building coating of scumbling type to be made, i.e. prevents Indoor Thermal in winter to outdoor transmission, has again heat insulation Effect, i.e. prevents outdoor heat in summer to indoor transmission, only multiple heat-transfer mechanism is combined, be allowed to existing higher heat Resistance, relatively low convection heat transfer' heat-transfer by convection, have different radiation effects to realize according to actual environment.Building coating of the present invention has low Heat conductivity and low convective heat-transfer coefficient and high heat radiation reflectance and high thermal emissivity rate, multiple heat-insulation mechanism Synergism, it is achieved the energy-saving effect of insulation coating.
Beneficial effects of the present invention is as follows:
(1) present invention has the building coating that the building coating of heat-insulation and heat-preservation function is aqueous, uses the construction party of water paint Method coats construction wall and roofing, and film forming thickness is 0.2~0.3mm, belongs to the Energy-Saving Architectural Coatings of scumbling type, construction letter Just;
(2) coating using building coating of the present invention coating draws with evaluation after tested, outer wall building coating visible reflectance Being 80~90%, infrared reflectivity is 80~90%, and hemispherical emissivity is 80~90%, and the heat insulation temperature difference is 10~20 DEG C, and interior wall is built Coating visible reflectance is 80~90%, and hemispherical emissivity is 80~90%, and the heat insulation temperature difference is 10~20 DEG C, and the present invention is described Inner, external wall building coating has higher thermal conduction resistance and relatively low convection heat transfer' heat-transfer by convection, has difference under Various Seasonal temperature environment Thermal radiation effect, there is heat insulation and heat insulation function;
(3) building coating of the present invention is coated inner, external wall and is had different thermal radiation effects in Various Seasonal: coat outside building During wall outer surface, have summer and the function of reflected solar radiation heat, higher coating thermal radiation function, reduce exterior wall surface Temperature, reduces by body of wall to indoor heat transfer.Winter, exterior wall external surface coating had relatively low thermal radiation property, reduced exterior wall Heat loss, reach the purpose of building energy conservation;When coating external wall inner surface, there is higher heat reflection red with higher External radiation rate, after indoor long-wave radiation being absorbed by coating, re-radiation is to indoor, reaches to reduce building energy consumption, is i.e. incubated effect Really;Particularly winter can improve the internal surface temperature of body of wall, alleviates inner wall surface condensation and mildew, increases the comfort of human body;
(4) building coating safety of the present invention is high, service life is long;
(5) preparation method of the present invention is simple, it is adaptable to industrialized production.
Detailed description of the invention
Below in conjunction with embodiment, the invention will be further described.
The silica aerosil microballoon of the powder that the embodiment of the present invention 1~8 is used is commercial industrial goods, density 60kg/m3, sealed porosity is 30~70nm levels;The coated by titanium dioxide mica powder that embodiment 2 is used for according to ZL200710035834.6 reference example 2 is prepared from;Other chemical reagent used, if no special instructions, all by conventional It is either commercially available.
Embodiment 1~4, comparative example 1
Embodiment 1~4 has building external paint and comparative example 1 building coating component formula such as table 1 institute of heat-insulation and heat-preservation function Show.
Table 1 embodiment 1~4 has building external paint and the comparative example 1 building coating component formula of heat-insulation and heat-preservation function (weight portion)
Note: the consumption of water in table 1, such as embodiment 2 are 29/20, represent and add 29 parts of water in step (1), and step adds 20 in (2) Part water;Dispersant, wetting agent, the defoamer consumption in each step of preparation method is without strict distribution;"-" represents and is not added with.
Embodiment 1~4 has the preparation method of the building external paint of heat-insulation and heat-preservation function, and (involved raw material dosage is pressed Table 1 adds), comprise the following steps:
(1) prepared by heat-barrier material slurry: is mixed with dispersant, wetting agent and the defoamer as auxiliary agent by water, is stirred Dispersion, low rate mixing under 100~200 turns/min, add micro-as the aerosil of the powder of heat-barrier material Ball, when, after the whole moistening of the silica aerosil microballoon of powder, under 1000 turns/min, high-speed stirred is to silicon dioxide gas Gel micro-ball aggregation is dispersed into the fine particle of 1.0~2.0 μm, obtains heat-barrier material slurry;
(2) preparation of functional material slurry: using water and dispersant, wetting agent, defoamer, coalescents and the sterilization as auxiliary agent Antifungus agent mix, under 100 turns/min low rate mixing dispersion, according still further to table 1 be sequentially added into heat-reflecting material, thermal-radiating material and Filler, under 400 turns/min, moderate-speed mixer is by powder moistening, then under 1000 turns/min, high-speed stirred to particle diameter in slurry is 10~20 μm, obtain functional material slurry;
(3) grinding of slurry: step (1) gained heat-barrier material slurry and step (2) gained functional material slurry are mixed, stirs After mixing uniformly, it is ground to particle diameter≤10 μm in slurry;
(4) paint: in the mixed slurry after step (3) is ground, under 200 turns/min, low rate mixing addition coating film forming is basic Carrier, adds the defoamer as auxiliary agent, thickening agent and levelling agent, and under 400~600 turns/min, moderate-speed mixer is to slurry Till viscosity is adjusted to 100KU, stands froth breaking, toning, sieve, metering, packaging,.
Comparative example 1 is the composition of raw materials of conventional building external paint, its preparation method embodiment 1~4.
Respectively embodiment 1~4 is had the building external paint of heat-insulation and heat-preservation function and comparative example 1 building coating according to water Property coating painting coating construction method, use roller coating method prepare test sample plate 1~5, coating thickness is 0.25mm.Press again According to following standard, test sample plate 1~5 is tested and is evaluated:
Heat ray reflectance (visible reflectance, infrared reflectivity) is according to JG/T 235-2014 " architectural reflective heat-insulation paint " Carry out test and evaluation;
Hemispherical emissivity carries out test and evaluation according to JG/T 235-2014 " architectural reflective heat-insulation paint ";
The heat insulation temperature difference carries out test and evaluation according to JG/T 235-2008 " architectural reflective heat-insulation paint ";
Evaluation result is shown in Table 2.
Table 2 embodiment 1~4 has the building external paint of heat-insulation and heat-preservation function and comparative example 1 building coating
Heat preservation and insulation evaluation result
As shown in Table 2, when increasing in the range of the addition of 3~6 parts along with aerosil, the heat insulation temperature difference of film becomes Greatly, effect of heat insulation improves.Infrared reflectivity increases along with the increase of heat-reflecting material consumption;The heat of coated by titanium dioxide Muscovitum Reflecting effect is better than rutile titanium white lead;Film infrared emanation rate increases along with the increase of infrared emission powder consumption, thus, Hemispherical radiation rate increases therewith.
Embodiment 5~8, comparative example 2
Embodiment 5~8 has dope for inner wall of architecture and comparative example 2 building coating component formula such as table 3 institute of heat-insulation and heat-preservation function Show.
Table 3 embodiment 5~8 has dope for inner wall of architecture and the comparative example 2 building coating component formula of heat-insulation and heat-preservation function (weight portion)
Note: the consumption of water in table 1, such as embodiment 6 are 27/20, represent and add 27 parts of water in step (1), and step adds 20 in (2) Part water;Dispersant, wetting agent, the defoamer consumption in each step of preparation method is without strict distribution;"-" represents and is not added with.
The raw material dosage of the dope for inner wall of architecture that embodiment 5~8 has heat-insulation and heat-preservation function is added by table 3, preparation method Identical with embodiment 1~4.
Comparative example 2 is the composition of raw materials of conventional dope for inner wall of architecture, and its preparation method is with embodiment 1~4.
Respectively embodiment 5~8 is had the dope for inner wall of architecture of heat-insulation and heat-preservation function and comparative example 2 building coating according to water Property coating painting coating construction method, use roller coating method prepare test sample plate 6~10, coating thickness is 0.25mm.Again According to such as embodiment 1~4 accepted standard, test sample plate 6~10 being tested and evaluated, evaluation result is shown in Table 4.
Table 4 embodiment 5~8 has the dope for inner wall of architecture of heat-insulation and heat-preservation function and comparative example 2 building coating
Heat preservation and insulation evaluation result
As shown in Table 4, when increasing in the range of the addition of 3~6 parts along with aerosil, the heat insulation temperature difference of film becomes Greatly, effect of heat insulation improves.Heat ray reflectance increases along with the increase of heat-reflecting material consumption, it is seen that light and infra-red heat ray Reflectance be consequently increased;The infrared emanation action effect of aluminic acid magnesium carbonate is good, and hemispherical radiation rate is along with the increasing of its consumption Add and increase.
The change of visible reflectance and infrared reflectivity and hemispherical reflectance produced by material each in coating Rule might not be consistent, and visible reflectance, infrared reflectivity and hemispherical reflectance three are the highest, the heat insulation guarantor of coating Temp effect is the best, so needing to select suitable material, and weighs the additional proportion of each material, with obtain visible reflectance, Infrared reflectivity and the highest coating of hemispherical reflectance three.
Heat insulation, the heat insulation effect of heat-insulation and heat-preservation Energy-Saving Architectural Coatings of the present invention is heat rejection, heat reflection and heat radiation three class The synergistic result of functional material, the present invention is by reasonably selecting various materials, and uses suitable method to be prepared as Stable coating system.

Claims (10)

1. there is a building coating for heat-insulation and heat-preservation function, be divided into interior wall coating and exterior coating, it is characterised in that: by painting Material film forming underlying carrier, heat-barrier material, heat-reflecting material, thermal-radiating material, filler, auxiliary agent and water composition.
The most according to claim 1, there is the building coating of heat-insulation and heat-preservation function, it is characterised in that each raw material components is described Parts by weight in building coating are: coating film forming underlying carrier is 50 parts, heat-barrier material 1~8 parts, heat-reflecting material 5~ 20 parts, thermal-radiating material 3~25 parts, filler 1~30 parts, auxiliary agent 0.5~2.0 parts.
The building coating with heat-insulation and heat-preservation function the most according to claim 1 or claim 2, it is characterised in that: described coating film forming Underlying carrier be interior wall with or exterior wall polymer resin emulsion;Wherein, described interior wall resin emulsion be styrene-acrylic resin emulsion, Emulsion acrylic resin, ethylene-vinyl acetate copolymer resin emulsion, polyvinyl acetate resins emulsion, organosilicon acrylic resin emulsion Or one or more in ester-polyurethane resin emulsion;Described exterior wall resin emulsion be pure third resin emulsion, organosilicon acrylic resin emulsion, One or more in fluorocarbon resin emulsion, styrene-acrylic resin emulsion or ester-polyurethane resin emulsion.
4. there is according to one of claims 1 to 3 the building coating of heat-insulation and heat-preservation function, it is characterised in that: described thermal resistance Barrier material is the silica aerosil microballoon with sealed porosity;The sealed porosity of described silica aerosil microballoon is 10 ~100nm level;The density of described silica aerosil microballoon is 30~100kg/m3
5. there is according to one of Claims 1 to 4 the building coating of heat-insulation and heat-preservation function, it is characterised in that: described heat is anti- Penetrate material be the one in titanium dioxide, coated by titanium dioxide Muscovitum, barium sulfate, antimony oxide, aluminium oxide or zinc oxide or Several;Wherein, in exterior coating, described titanium dioxide is the titanium dioxide of Rutile structure;In interior wall coating, described dioxy Change the titanium dioxide that titanium is rutile-type or anatase structures.
6. there is according to one of Claims 1 to 5 the building coating of heat-insulation and heat-preservation function, it is characterised in that: interior wall coating In, described thermal-radiating material is one or more in aluminic acid magnesium carbonate, aluminium sesquioxide, Pulvis Talci or magnesium silicate;Exterior wall is coated with In material, described thermal-radiating material is a class of following three apoplexy due to endogenous wind or a few class: infrared emission powder;With barium sulfate, calcium sulfate, fluorination The metallic salt of one or more compositions in calcium, Afluon (Asta), magnesium silicate, calcium silicates, aluminium silicate, magnesium carbonate or calcium carbonate;With The layer structure powder body class of one or more compositions in Pulvis Talci, mica powder or aluminic acid magnesium carbonate.
7. there is according to one of claim 1~6 building coating of heat-insulation and heat-preservation function, it is characterised in that: described filler For one or more in mica powder, dicalcium powder or calcined kaolin;Described auxiliary agent be biocide mildewcide, dispersant, wetting agent, One or more in defoamer, coalescents, levelling agent or thickening agent.
8. having the preparation method of the building coating of heat-insulation and heat-preservation function as described in one of claims 1~7, its feature exists In, comprise the following steps:
(1) prepared by heat-barrier material slurry: is mixed with dispersant, wetting agent and the defoamer as auxiliary agent by water, is stirred Dispersion, under low rate mixing, adds the silica aerosil microballoon of the powder as heat-barrier material, when the two of powder After the whole moistening of silica aerogel microsphere, high-speed stirred, obtain heat-barrier material slurry;
(2) preparation of functional material slurry: using water and dispersant, wetting agent, defoamer, coalescents and the sterilization as auxiliary agent Antifungus agent mixes, and low rate mixing disperses, and sequentially adds heat-reflecting material, thermal-radiating material and filler, and moderate-speed mixer is by powder Moistening, then high-speed stirred, obtain functional material slurry;
(3) grinding of slurry: step (1) gained heat-barrier material slurry and step (2) gained functional material slurry are mixed, stirs It is ground after mixing uniformly;
(4) paint: in the mixed slurry after step (3) is ground, adds coating film forming underlying carrier resin breast under low rate mixing Liquid, adds the defoamer as auxiliary agent, thickening agent and levelling agent, after moderate-speed mixer is uniform, stands froth breaking, toning, sieves, meter Amount, packaging,.
9. there is according to claims 8 preparation method of the building coating of heat-insulation and heat-preservation function, it is characterised in that: step (1), in, high-speed stirred to heat-barrier material aggregation is dispersed into the fine particle of 0.5~2.0 μm;In step (1), (2), (4), The speed of described low rate mixing is 100~200 turns/min;In step (2), (4), the speed of described moderate-speed mixer is 400~800 Turn/min;In step (1), (2), the speed of described high-speed stirred is 900~1200 turns/min;In step (2), high-speed stirred is extremely In slurry, particle diameter is 10~20 μm;In step (3), it is ground to particle diameter≤10 μm in slurry;In step (4), middling speed Stirring is adjusted to 80~110KU to slurry viscosity.
10. there is according to claims 8 or 9 preparation method of the building coating of heat-insulation and heat-preservation function, it is characterised in that: In step (1), the consumption of described water is 4~9 times of heat-barrier material quality;In step (2), the consumption of described water is heat reflection Material, thermal-radiating material and 0.5~0.8 times of filler three's gross mass.
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