CN106477967B - A kind of high-heat energy-saving heat preserving building coating and preparation method thereof - Google Patents

A kind of high-heat energy-saving heat preserving building coating and preparation method thereof Download PDF

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CN106477967B
CN106477967B CN201610887786.2A CN201610887786A CN106477967B CN 106477967 B CN106477967 B CN 106477967B CN 201610887786 A CN201610887786 A CN 201610887786A CN 106477967 B CN106477967 B CN 106477967B
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heat
nano
agent
building coating
heat energy
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CN106477967A (en
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徐翠云
李翔
刘欣
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Shangrao Annatuo New Materials Co ltd
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NAYU NANO NEW MATERIALS Co Ltd JIANGXI CHINA
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    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
    • C04B26/02—Macromolecular compounds
    • C04B26/04—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C04B26/06—Acrylates
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
    • C04B20/0016—Granular materials, e.g. microballoons
    • C04B20/002—Hollow or porous granular materials
    • C04B20/0036—Microsized or nanosized
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
    • C04B2111/00482—Coating or impregnation materials
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20—Resistance against chemical, physical or biological attack
    • C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/30—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values
    • C04B2201/32—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values for the thermal conductivity, e.g. K-factors

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Nanotechnology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Paints Or Removers (AREA)
  • Building Environments (AREA)

Abstract

The invention discloses a kind of high-heat energy-saving heat preserving building coatings, its component and content are as follows respectively: the nano silicon oxide 15~40% of interior closed pore external-open pore structure, nano-titanium oxide 4~10% according to weight percent, potassium hexatitanate 1~10%, Titanium pyrophosphate 1~10%, magnesium silicate 3~15%, aluminium hydroxide 1-3%, sodium metasilicate calcium 1~3%, acrylic acid composite emulsion 2~18%, function additive 1.5~3%, remaining is water.The invention also discloses corresponding preparation methods.Coating of the invention uses the microstructure design of micrometer/nanometer macrostructure, hot pipeline is controlled with table/interface in micrometer/nanometer macrostructure, shell, within closed pore, external-open pore structure nano oxidized silicon composite interior ultra micro closed pore negative space realize heat-insulation and heat-preservation, exterior open cell body structure surface activity is very strong, carrier of the multidimensional network that can be formed between particles as temperature control phase-change material realizes temperature adjustment function.

Description

A kind of high-heat energy-saving heat preserving building coating and preparation method thereof
Technical field
The invention belongs to building heat insulation field of material technology, and in particular to a kind of high-heat energy-saving heat preserving building coating And preparation method thereof.
Background technique
Functional heat-insulated (thermal resistance) coating is Global Oil time of crisis the 1970s, and European countries are to alleviate the energy Problem and the product of primary large-scale policy sex work being unfolded.U.S.'s heat-insulating material for building since 1987 accounts for all 81% or so of heat-insulating material.In AND ENERGY RESOURCES CONSUMPTION IN CHINA, building energy consumption accounts about the 1/4 of national total energy consumption, and builds 11% or so of total amount is only accounted for heat-insulating material.Building energy consumption proportion in the entire energy consumption of the mankind is very high, builds energy Consumption proportion in the entire energy consumption of the mankind therefore is built generally in 30-40%, the mostly energy consumption of heating and air-conditioning Energy-saving significance is great, is to solve the fundamental way of energy problem, China, and the most directly effective method of building energy conservation is using guarantor Warm heat-barrier material.It is upper rationally using heat preserving and insulating material in building, it is possible to reduce the dosage of construction material improves construction Industrialization degree, accompanied by substantial power saving.
Traditional building heat insulation material is organic heat-insulating heat-preserving material such as EPS sheet, XPS plate, PU hard bubble, at present The organic insulation material that China uses occupies 80% or more of industry and building heat preservation engineering share.Although these organic heat-insulatings Material excellent, good heat insulating advantage with thermal coefficient, but their fire protecting performance is poor, be easy to cause fire disaster Accident.Since the contradiction of Conventional insulation inflammability and thermal insulation property does not have essence solution, so as to cause the fire-fighting taken Measure can only be the passive fire preventing mode such as setting isolation strip, cannot be inherently eliminated fire hazard.Have secondly, existing Organic insulation material (such as polyphenyl, polyurethane, extruded sheet) toxic is seriously polluted, volatilizes in the production and use process big The peculiar smell and toxic gas of amount cause the serious pollution to industrial environment and social environment.In addition, existing thermal insulation material Without fundamentally solving heat source factor in control environment, belong to a kind of passive type that thermal insulation property is determined with material properties Obstruct heat preserving method.
Inorganic heat insulation material is also widely used under construction, such as rock wool, mineral wool, mineral wool, foam concrete, vitreous The inorganic heat insulation materials such as microballon have good flameproof effect, anti-aging property stabilization and wall although combustibility reaches A grades Base and float coat combination are preferable, safety and firmness is good, insulating layer intensity and durability are higher than organic insulation material, service life Length, difficulty of construction is small, engineering cost is lower, and eco-environmental prote is good, can be with cycling and reutilization.But due to inorganic heat insulation material Thermal coefficient is poor, and thermal insulation property is not good enough, is extremely difficult to ideal heat insulation heat preservation energy-saving effect, or even meets water failure.For section The building greater than 65% can be required, the design thickness of inorganic heat-insulating layer will be more than 50mm, not be available, and cost is high.
Occurs water nano heat-insulating heat-preserving material in the prior art, by inorganic nano material and inorganic heat-insulating material It is compound, it is equipped with film forming and function additive, the adjustable heat-insulating heat-preserving material of thermal property can be prepared.This active thermal heat preservation energy-saving Technology and material can greatly improve the heat insulation and preservation effect of inorganic material, and have excellent environmental protection and fire protecting performance.Such as Patent document 103087605A discloses a kind of water nano heat-insulating heat-preserving material and preparation method thereof for building, the material by Porous water nano SiO2 suspension emulsion, inorganic nano TiO2, inorganic nano Bismuth Oxychloride, hollow glass bead, inorganic ultra micro Material, function additive, fire retardant and deionized water form, which can block the material of hot-fluid transmitting, have every The effect that exhausted heat transfer keeps temperature stable, flameproof effect are excellent.But the water nano heat-insulating heat-preserving material coating because The limitation of its constituent, porous water nano SiO2 suspension emulsion microstructure especially therein, although can produce one Fixed thermal resistance effect, but the heat-insulated thermal resistance effect of actually this coating is still not good enough, and insulation stability is poor.
Summary of the invention
Aiming at the above defects or improvement requirements of the prior art, the present invention provides a kind of high-heat energy-saving heat preserving buildings to apply Material and preparation method thereof, by component and the Optimal improvements that match accordingly so that coating have the transmitting of stagnant hot-fluid, every Exhausted heat transfer, the effect for keeping temperature stable.
To achieve the above object, according to one aspect of the present invention, a kind of high-heat energy-saving heat preserving building coating is provided, Include following component and content according to weight percent:
It further include function additive 1.5~3% as present invention further optimization.
Other side according to the invention, provides a kind of high-heat energy-saving heat preserving building coating, and component and content are pressed It is as follows respectively according to weight percent:
As present invention further optimization, the nano silicon oxide is the nano silicon oxide of interior closed pore external-open pore structure.
As present invention further optimization, wherein the nano oxidized silicon composite of the interior closed pore external-open pore structure Specific surface area>=800m2/g, porosity of=70%, micropore size<2nm, micropore is than volume>=1000cm3/g.
As present invention further optimization, the nano oxidized silicon composite is unformed powder.
The porous nano silica composite material of interior closed pore, external-open pore structure in the technical solution, it is internal a large amount of Ultra micro closed pore space, blocks the Convention diffusion of thermal energy, to reduce the thermal coefficient of material, has heat insulation function；In addition, Its exterior open cell body structure surface is residual to be good for more, and activity is very strong, and the multidimensional network that can be formed between particles is as temperature control phase-change material And the carrier of infrared reflective material, realize temperature adjustment thermal resistance function.Meanwhile a nanometer undefined structure forms heat-insulating heat-preserving material The unordered interfacial structure feature of short distance has the function of consuming certainly for heat, and heat insulating coatings is enable to block hot-fluid transmitting, isolation heat Amount transmitting, the effect for keeping temperature stable.
As present invention further optimization, the inorganic nano titanium oxide is rutile-type, partial size 20-30nm.Gold Red stone-type nano-titanium oxide refractive index is high, is fabulous infrared reflective material.
As present invention further optimization, the potassium hexatitanate and Titanium pyrophosphate are thermal control material, granularity 2-150 μm。
Potassium hexatitanate, Titanium pyrophosphate are fabulous phase-change materials, and infrarefraction rate is 2.5 times or more of titanium oxide, and from Body thermal coefficient is only 0.036W/ (mK), and phase-change heat-storage material and porous nanometer material progress is compound, in heat-insulation and heat-preservation material High-heat and the regulation of long-acting intelligent temperature of heat-insulating heat-preserving material may be implemented in the temperature adjustment function that phase-change material is integrated in material.
As present invention further optimization, the sodium metasilicate calcium is greater than 400 mesh powders.Sodium metasilicate calcium has Higher high temperature resistance can promote the fire resistant performance of high resistant heating energy saving environment protection building coating
As present invention further optimization, the magnesium silicate fiber suede specific surface area >=900m2/g, the long 0.5-1mm of suede. Its copolymer of fiber suede plays the role of certain pulling force in the material, prevents cracking；The porous structure of its high-specific surface area can be effectively reduced The thermal coefficient of coating；Material non-toxic, 1500 DEG C -1700 DEG C of high temperature resistant, moulding is good, and shrinking percentage is low, is not easy to split, and Salt resistance degree is high, and corrosion resistance is good, while while encountering water can absorb many water to become softness, and once it is dry just change Hard, the high temperature resistant, thermal insulation property and application property that can effectively promote coating be good, stable structure, and increases coating intensity.
As present invention further optimization, the aluminium hydroxide partial size is 1-2.5 μm.Aluminium hydroxide is inorganic well Fire retardant, addition the fusing point of organic matter can be provided, generated moisture evaporation by thermal decomposition and take away heat, reduce coating surface temperature Degree, guarantees the flame retardant effect of coating.
As present invention further optimization, the acrylic acid composite emulsion is phenylpropyl alcohol, pure C, at least two in silicon third Composition.Acrylic acid composite emulsion is the main film-former of high resistant heating energy saving environment protection building coating, it is ensured that elasticity, the intensity of coating And weather resistance, to improve the cracking resistance denaturation of high resistant heating energy saving environment protection building coating coating, polluting proofing property, water resistance and weather-proof Property, extend the service life of coating.
As present invention further optimization, the function additive is dispersing agent, wetting agent, defoaming agent, fungicide, levelling At least one of agent, pH adjusting agent and thickener.
As present invention further optimization, the concrete type and content of the function additive by weight percentage can be with Are as follows: dispersing agent 0.3~1%, wetting agent 0.3~1%, coalescing agent 0.3-1%, fungicide 0.1-0.2%, pH adjusting agent 0.1- 0.5%, levelling agent 0.05%-0.1%, defoaming agent 0.05-0.1%, thickener 0.2~0.5%.
It is another aspect of this invention to provide that providing a kind of preparation method of high-heat energy-saving heat preserving building coating comprising Following steps:
Water is added in beater tub by weight first, dispersing agent 0.3~1%, wetting agent 0.3~1% is then added, successively throws Entering potassium hexatitanate 1~10%, Titanium pyrophosphate 1~10%, sodium metasilicate calcium 1~3%, nano-titanium oxide is 4~10%, hydroxide Aluminium 1-3%, mashing；
Nano oxidized silicon composite 15~40% is put into again, is beaten；
Magnesium silicate 3~15% is put into again, is beaten；
By in 2~18% sucting reaction kettle of acrylic acid composite emulsion, by slurries sucting reaction kettle spare in mixing cirtern, stir It mixes 40-60 minutes, function additive, which is then added, and stirs evenly can be prepared into high-heat energy-saving heat preserving building coating.
In general, through the invention it is contemplated above technical scheme is compared with the prior art, have below beneficial to effect Fruit:
1) the high-heat energy-saving heat preserving building coating in the present invention, gradation micron, nanometer, closed pore, open-cell material and phase transformation Heat accumulating can be constructed a kind of special as microstructure in the micrometer/nanometer macrostructure of discrete distribution using component particles size The new thermal insulation material system of sign.Due to the microstructure design using micrometer/nanometer macrostructure, in micrometer/nanometer macrostructure Table/interface, shell control hot pipeline, within the nano oxidized silicon composite of closed pore external-open pore structure be main material, benefit Heat-insulation and heat-preservation is realized with ultra micro closed pore negative space in nano oxidized silicon composite, and external-open pore structure is as temperature control phase-change material Carrier realizes temperature adjustment function.
Simultaneously its nanometer of undefined structure form heat-insulating heat-preserving material short distance is unordered, structure feature of long-range order, tool There is the consumption function certainly of heat, heat insulating coatings is enable to block hot-fluid transmitting, isolation heat transfer, the effect for keeping temperature stable Fruit.Coating products thermal coefficient is low, can effectively inhibit and shield the conduction of the radiant heat and heat of infrared ray, and 3mm coating is heat-insulated The heat radiation of high-rise and scattering and disappearing for heat can be effectively suppressed up to 1/2 or more in the temperature difference, light, layer is thin, energy saving and heat preservation effect Significantly, it is able to satisfy the requirement that building energy conservation is greater than 65%；
2) the high-heat energy-saving heat preserving building coating in the present invention, component material is largely inorganic non-combustible materials, is prevented Fiery performance reaches A grades of levels, does not burn at 300~1400 DEG C, and high temperature is kept for 2 hours, does not generate smog, gasification and explosion danger Danger, material not dusting, and with the discharge of nonhazardous substance and incombustible absolute predominance；
3) artificial smearing can be used in the high-heat energy-saving heat preserving building coating in the present invention, the mode of spraying carries out, coating In conjunction with plinth course and float coat preferably, safety and firmness is good, insulating layer intensity and durability are high, difficulty of construction is small, operation letter Just.Its construction cost is the 50% of market similar product, and project cost cost is the 80% of market similar product, is really achieved High-quality, safe and efficient, energy-saving and environmental protection purposes.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to embodiments, to the present invention It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to Limit the present invention.As long as in addition, technical characteristic involved in the various embodiments of the present invention described below each other it Between do not constitute conflict and can be combined with each other.
Embodiment 1
One of the present embodiment be used for wall high-heat energy-saving heat preserving building coating and preparation method thereof, component and Content is as follows respectively according to weight percent:
Wherein, function additive may include dispersing agent 0.5%, 0.3% part of 0.5% coalescing agent of wetting agent, fungicide 0.1%, pH adjusting agent 0.1%, levelling agent 0.05%, defoaming agent 0.05%, thickener 0.4%.
When specific preparation, first water is added in beater tub first by weight, dispersing agent 0.5%, wetting agent is then added 0.5%, successively put into potassium hexatitanate 3%, Titanium pyrophosphate 1%, sodium metasilicate calcium 1%, nano-titanium oxide 4%, aluminium hydroxide 1.5%, 1200-3000 revs/min of high-shear homogenizers (or sand mill) are beaten 25-60 minutes；It is compound that nano silicon oxide is put into again Material 40%, 1200-3000 revs/min mashing 20-30 minutes；Magnesium silicate 3%, 800-1200 revs/min of mashing 20- are put into again 30 minutes, slurries were spare.With vacuum pump will in 2% sucting reaction kettle of acrylic acid composite emulsion, open reaction kettle, adjust stirring to 400~600 revs/min of revolving speed；Will be in slurries sucting reaction kettle spare in mixing cirtern, stirring 40-60 minutes, then in order Sequentially add 0.3% part of coalescing agent, fungicide 0.1%, pH adjusting agent 0.1%, levelling agent 0.05%, defoaming agent 0.05%, After stirring, thickener 0.4% is slowly added to, is reached until applying 4 glasss of 80~90 seconds viscosity.Last filling preparation At the high-heat energy-saving heat preserving building coating for wall.
After measured, product thermal coefficient manufactured in the present embodiment is not more than 0.0291W/ (mK), and fire protecting performance reaches A grades It is horizontal.
Embodiment 2
One of the present embodiment be used for wall high-heat energy-saving heat preserving building coating and preparation method thereof, component and Content is as follows respectively according to weight percent:
Wherein, function additive may include dispersing agent 1%, wetting agent 1%, 0.2% part of coalescing agent, fungicide 0.1%, PH adjusting agent 0.12%, levelling agent 0.1%, defoaming agent 0.08%, thickener 0.4%
When specific preparation, first water is added in beater tub first by weight, dispersing agent 1%, wetting agent 1% is then added, Successively investment potassium hexatitanate 10%, sodium metasilicate calcium 3%, nano-titanium oxide 5%, aluminium hydroxide 1%, 1200-3000 revs/min Clock high-shear homogenizer (or sand mill) is beaten 25-60 minutes；Putting into nano oxidized silicon composite 18% again, 1200-3000 turns/ Minute mashing 20-30 minutes；Put into magnesium silicate 7% again, 800-1200 revs/min mashing 20-30 minutes, slurries are spare.With true Empty pump will open reaction kettle in 15% sucting reaction kettle of acrylic acid composite emulsion, adjust turn of stirring to 400~600 revs/min Speed；By in slurries sucting reaction kettle spare in mixing cirtern, stirs 40-60 minutes, then sequentially add coalescing agent in order 0.2%, fungicide 0.1%, pH adjusting agent 0.12%, levelling agent 0.1%, defoaming agent 0.08%, stir after, will increase Thick dose 0.4% is slowly added to, and reaches until applying 4 glasss of 70-80 seconds viscosity.Finally filtering, the filling height being prepared into for wall Thermal resistance energy-saving heat preserving building coating.
After measured, product thermal coefficient manufactured in the present embodiment is low :≤0.028W/ (mK), fire protecting performance reach A1 grades It is horizontal.
Embodiment 3
One of the present embodiment be used for wall high-heat energy-saving heat preserving building coating and preparation method thereof, component and Content is as follows respectively according to weight percent:
Wherein, function additive can be dispersing agent 0.3%, 0.3% part of 0.3% coalescing agent of wetting agent, fungicide 0.2%, pH adjusting agent 0.3%, levelling agent 0.1%, defoaming agent 0.1%, thickener 0.5%.
When specific preparation, first water is added in beater tub first by weight, dispersing agent 0.3%, wetting agent is then added 0.3%, successively put into potassium hexatitanate 1%, Titanium pyrophosphate 1%, sodium metasilicate calcium 2%, nano-titanium oxide 10%, aluminium hydroxide 3%, 1200-3000 revs/min of high-shear homogenizers (or sand mill) are beaten 25-60 minutes；Nano silicon oxide composite wood is put into again Expect 26%, 1200-3000 revs/min mashing 20-30 minutes；Magnesium silicate 4%, 800-1200 revs/min of mashing 20-30 are put into again Minute, slurries are spare.With vacuum pump will in 18% sucting reaction kettle of acrylic acid composite emulsion, open reaction kettle, adjust stirring to 400~600 revs/min of revolving speed；Will be in slurries sucting reaction kettle spare in mixing cirtern, stirring 40-60 minutes, then in order It sequentially adds 0.3% part of coalescing agent, fungicide 0.2%, pH adjusting agent 0.3%, levelling agent 0.1%, defoaming agent 0.1%, fill Divide after mixing evenly, thickener 0.5% is slowly added to, reaches until applying 4 glasss of 60~90 seconds viscosity.It finally filters, is filling It is prepared into the high-heat energy-saving heat preserving building coating for wall.
After measured, product thermal coefficient manufactured in the present embodiment is low :≤0.031W/ (mK), and fire protecting performance reaches A grades of water It is flat.
Embodiment 4
One of the present embodiment be used for wall high-heat energy-saving heat preserving building coating and preparation method thereof, component and Content is as follows respectively according to weight percent:
Wherein, function additive can be dispersing agent 1%, wetting agent 1%, coalescing agent 0.2%, fungicide 0.1%, pH tune Save agent 0.12%, levelling agent 0.1%, defoaming agent 0.08%, thickener 0.4%)
When specific preparation, first water is added in beater tub first by weight, dispersing agent 1%, wetting agent 1% is then added, Successively put into Titanium pyrophosphate 10%, sodium metasilicate calcium 1.5%, nano-titanium oxide 4%, aluminium hydroxide 1.5%, 1200-3000 Rev/min high-shear homogenizer (or sand mill) is beaten 25-60 minutes；Nano oxidized silicon composite 15%, 1200- are put into again 3000 revs/min mashing 20-30 minutes；Put into magnesium silicate 15% again, 800-1200 revs/min mashing 20-30 minutes, slurries are standby With.With vacuum pump by 8% sucting reaction kettle of acrylic acid composite emulsion, reaction kettle is opened, adjusts stirring to 400~600 revs/min The revolving speed of clock；By in slurries sucting reaction kettle spare in mixing cirtern, stirs 40-60 minutes, then sequentially add film forming in order Auxiliary agent 0.2%, fungicide 0.1%, pH adjusting agent 0.12%, levelling agent 0.1%, defoaming agent 0.08%, stir after, Thickener 0.4% is slowly added to, is reached until applying 4 glasss of 60-90 seconds viscosity.Finally filtering filling is prepared into for wall High-heat energy-saving heat preserving building coating.
After measured, product thermal coefficient manufactured in the present embodiment is not more than 0.03W/ (mK), and fire protecting performance reaches A grades of water It is flat.
Its concrete content of each component and the numberical range of relevant parameter are merely exemplary in the above various embodiments, not For limiting the present invention, specifically, the content of the nano silicon oxide of interior closed pore external-open pore structure can be 15~40%, nanometer The content of titanium oxide can be 4~10%, and thermal control material can be one or both of potassium hexatitanate, Titanium pyrophosphate, contain Amount can be 1~20%, can preferably potassium hexatitanate dosage is 1~10%, Titanium pyrophosphate dosage is 1~10%.
In addition, auxiliary reagent includes sodium metasilicate calcium, magnesium silicate and aluminium hydroxide, content can be respectively 1~3%, 3 ~15% and 1-3%, wherein preferably, sodium metasilicate calcium is greater than 400 mesh powders, and magnesium silicate is magnesium silicate fiber suede, Specific surface area >=900m2/g, the long 0.5-1mm of suede.Aluminium hydroxide partial size is preferably 1-2.5 μm.
In addition, acrylic acid composite emulsion can be composed at least two in phenylpropyl alcohol, pure C, silicon third.Acrylic acid is multiple Close the main film-former that lotion is high resistant heating energy saving environment protection building coating, it is ensured that elasticity, intensity and the weather resistance of coating, from And the cracking resistance denaturation of high resistant heating energy saving environment protection building coating coating is improved, polluting proofing property, water resistance and weatherability extend coating Service life.
Function additive can be in dispersing agent, wetting agent, defoaming agent, fungicide, levelling agent, pH adjusting agent and thickener It is at least one.The concrete type and content of function additive by weight percentage can be with are as follows: dispersing agent 0.3~1%, wetting agent 0.3 ~1%, coalescing agent 0.3-1%, fungicide 0.1-0.2%, pH adjusting agent 0.1-0.5%, levelling agent 0.05%-0.1%, disappear Infusion 0.05-0.1%, thickener 0.2~0.5%.
The porous nano silica composite material of interior closed pore, external-open pore structure in the embodiment of the present invention is preferably using precipitating Method preparation, is particularly preferably prepared using the preparation method in the patent 201510232645.2 of applicant's earlier application. The nanometer that according to the nano silicon oxide of precipitation method production there is gas phase melt-combustion method, the sol-gel method of organic system to produce The unique property that silica does not have, when having the high-specific surface area greater than 800m2/g, nano oxidized silicone hydroxyl is abundant, table Face is residual strong very big, therefore chemical activity is extremely strong, can between system material in silica and coating between nano oxidized silicon particle and particle Firm bonding is formed, in high-heat energy-saving building coating, improves the intensity of coating.
As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, not to The limitation present invention, any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should all include Within protection scope of the present invention.

Claims (8)

1. a kind of high-heat energy-saving heat preserving building coating, which is characterized in that the coating includes following component by weight percentage:
The nano silicon oxide 15~40% of interior closed pore external-open pore structure
Nano-titanium oxide 4~10%
Potassium hexatitanate 1~10%
Titanium pyrophosphate 1~10%
Magnesium silicate 3~15%
Aluminium hydroxide 1-3%
Sodium calcium silicate 1~3%
Acrylic acid composite emulsion 2~18%；
Wherein, the nano silicon oxide of the interior closed pore external-open pore structure is unformed powder, specific surface area >=800m2/ g, hole Gap rate>=70%, micropore size<2nm, micropore is than volume>=1000cm3/g。
2. high-heat energy-saving heat preserving building coating according to claim 1, wherein further include function additive, weight hundred Dividing than content is 1.5~3%.
3. a kind of high-heat energy-saving heat preserving building coating, component and content are distinguished as follows according to weight percent:
The nano silicon oxide 15~40% of interior closed pore external-open pore structure
Nano-titanium oxide 4~10%
Potassium hexatitanate 1~10%
Titanium pyrophosphate 1~10%
Magnesium silicate 3~15%
Aluminium hydroxide 1-3%
Sodium calcium silicate 1~3%
Acrylic acid composite emulsion 2~18%
Function additive 1.5~3%
Remaining is water；
Wherein, the nano silicon oxide of the interior closed pore external-open pore structure is unformed powder, specific surface area >=800m2/ g, hole Gap rate>=70%, micropore size<2nm, micropore is than volume>=1000cm3/g。
4. a kind of high-heat energy-saving heat preserving building coating according to any one of claim 1 to 3, wherein the nanometer Titanium oxide is rutile-type, and partial size is 20-30 nm.
5. a kind of high-heat energy-saving heat preserving building coating according to any one of claim 1 to 3, wherein six titanium Sour potassium and Titanium pyrophosphate are thermal control material, and granularity is 2-150 μm.
6. a kind of high-heat energy-saving heat preserving building coating according to any one of claim 1 to 3, wherein the propylene Sour multiple emulsion is phenylpropyl alcohol, pure C, at least two compositions in silicon third.
7. a kind of high-heat energy-saving heat preserving building coating according to claim 2 or 3, wherein the function additive is point At least one of powder, wetting agent, defoaming agent, fungicide, levelling agent, pH adjusting agent and thickener.
8. a kind of preparation method of high-heat energy-saving heat preserving building coating comprising following steps:
Water is added in beater tub by weight first, dispersing agent 0.3~1%, wetting agent 0.3~1% is then added, successively puts into six titaniums Sour potassium 1~10%, Titanium pyrophosphate 1~10%, sodium calcium silicate 1~3%, nano-titanium oxide be 4~10%, aluminium hydroxide 1-3%, Mashing；
The nano oxidized silicon composite 15~40% of interior closed pore external-open pore structure is put into again, is beaten；
Magnesium silicate 3~15% is put into again, is beaten；
By in 2~18% sucting reaction kettle of acrylic acid composite emulsion, by slurries sucting reaction kettle spare in mixing cirtern, stir 40-60 minutes, coalescing agent, defoaming agent, fungicide, levelling agent, pH adjusting agent and thickener is then added and stirs evenly i.e. It can be prepared into high-heat energy-saving heat preserving building coating；
Wherein, the nano silicon oxide of the interior closed pore external-open pore structure is unformed powder, specific surface area >=800m2/ g, hole Gap rate>=70%, micropore size<2nm, micropore is than volume>=1000cm3/g。
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