CN107987597A - Heat insulating coatings used for building exterior wall and preparation method thereof - Google Patents
Heat insulating coatings used for building exterior wall and preparation method thereof Download PDFInfo
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- CN107987597A CN107987597A CN201711168907.9A CN201711168907A CN107987597A CN 107987597 A CN107987597 A CN 107987597A CN 201711168907 A CN201711168907 A CN 201711168907A CN 107987597 A CN107987597 A CN 107987597A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING 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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/004—Reflecting paints; Signal paints
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING 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
- C09D4/00—Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16
- C09D4/06—Organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond in combination with a macromolecular compound other than an unsaturated polymer of groups C09D159/00 - C09D187/00
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Abstract
Heat insulating coatings used for building exterior wall are made of 40~50 parts of lotions, 1~2 part of N hydroxymethyl acrylamide, 6~9 parts of aerosils, 4~6 parts of water, 1~2 part of titanate coupling agent, 7~14 parts of auxiliary agents, 7~9 parts of n-butyl acetates, 9~12 parts of heat-insulating heat-preserving materials and 5~10 parts of modified nano calcium carbonates, wherein, the lotion is 102 silicone acrylic emulsions of A and 99 pure-acrylic emulsion weight ratio=1.5 of A:1 mixed liquor, the auxiliary agent are made of the coalescents of the biocide mildewcide of 1~2 parts by weight, the levelling agent of 1~3 parts by weight, the thickener of 1~3 parts by weight and 4~6 parts by weight, and the heat-insulating heat-preserving material is hollow glass micropearl:Expanded perlite:Weight ratio=1 of alumina silicate fibre:1:1 mixture.The coating of the present invention has the characteristics that chemical resistance is strong, good weatherability, heat insulation and preservation effect are good, glossiness is high, film long lifespan.
Description
Technical field
The present invention relates to a kind of heat insulating coatings, particularly a kind of heat insulating coatings used for building exterior wall and its preparation side
Method, belongs to Chemical composition that and its preparing technical field.
Background technology
Due to the destruction that world industry is increasingly flourishing and the mankind are to the Nature, it is each that energy-saving work has caused the world
The concern and attention of state, the building energy consumption in China account for more than the 30% of mankind's energy consumption, improve building heat preserving heat-proof quality,
Improve building using function, it is energy-saving be that current building selection designs another significant consideration.In building coating field
Developing goal both domestic and external be also towards efficiently, save the energy and resource, innoxious, pollution-free direction is developed.In recent years develop
Buildings Heat Reflection insulating moulding coating not only there is dicoration, but also there is heat-reflecting heat-insulating effect, apply in building roof and interior
Wall face has light and heat blocking and reflex well, can resist big sunlight and ambient heat during the broiling summer to building
The baking of thing, significantly reduces indoor temperature, reduces hot wall penetration loss in the winter time, reaches effect cool in summer and warm in winter, and building is saved
There can be certain contribution.
Building energy conservation is one of emphasis of China's energy conservation, and exterior insulation has become the major product of building energy conservation.For
Area during Thermal Design based on keeping the temperature, such as severe cold area and cold district, exterior insulation is not only reasonable, but also is applicable in,
Development is very fast.And heat-insulated hot summer and warm winter region is generally only considered during for Thermal Design, or during Thermal Design based on heat-insulated
Hot-summer and cold-winter area, there is further perfect space in some current exterior insulations.It is special for the weather of different regions
Point, reasonably selects and uses various heat insulating coatings, form compound system, not only kept the temperature but also heat-insulated, and reached indoor thermal environment and relax
Accommodate energy-saving purpose.In terms of heat insulating coatings, it is as follows to retrieve related document：
1st, Chinese patent, denomination of invention：Elastic heat-insulation fluorocarbon coating and preparation method thereof, application method；Application number：
201110411371.5 ；Applicant：Shenzhen Guangtian Environmental Coating Co., Ltd；Summary：A kind of elastic heat-insulation fluorocarbon coating,
It is made of host agent and curing agent, its host agent is made of the component of following weight proportion:Fluororesin 55-65, dispersant 0.5-1.5,
Defoamer 0.2-0.4, anti-settling agent 0.3-0.5, levelling agent 0.3-0.5, titanium dioxide 15-20, hollow glass micropearl 4-8, hollow height
Molecularly Imprinted Polymer l-1.5, mixed solvent 15-20；Its curing agent is made of the component of following weight proportion：E405-80T90, second
Acid butyl ester 5, butyl glycol ether acetic acid esters 5；And the weight proportion of the host agent and curing agent according to fluororesin through being worth and curing
The NCO content of agent calculates, and takes OH/NCO=1:(1.05-1.15).The elastic heat-insulation fluorocarbon coating has outstanding weatherability, and
With excellent anti-staining, abrasion resistance and excellent decoration performance etc., and the coating has good room temperature and low temperature
Elasticity, can resist blind crack, simultaneously because the raising of heat insulating effect, helps to transport and dispose.
2nd, Chinese patent, denomination of invention：Heat-reflecting insulating coating for outer surface of building and preparation method thereof；Application number：
201010044807.7；Applicant：Fujian Ounuo Paint Technology Co., Ltd.；Summary：The invention discloses a kind of outer surface of building
With heat-reflecting insulating coating, it includes following component：Water-based soap-free polymerization copolymer emulsion, titanium dioxide, boron-containing glass microballon, ceramics
Powder, filler, wetting agent, dispersant, thickener, defoamer, coalescents, propane diols, water, and the preparation method of the coating.
Heat-reflecting insulating coating for outer surface of building provided by the invention is coated on building surface and not only increases exterior wall to sunlight heat
Reflecting properties, reduce the absorption that exterior wall radiates sunlight heat, so as to reduce the table temperature of building, reached heat-insulated
Energy saving effect, and the coating does not conform to heavy metal, nontoxic and pollution-free, construction technology is simple and convenient, sexual valence using water as solvent
It is a kind of environmental friend type multifunction energy-saving coatings than high.
3rd, Chinese patent, denomination of invention：A kind of water-soluble colorful insulation coating and preparation method thereof；Application number：
2009l0248588.1；Applicant：The Maritime Affairs University Of Dalian；Summary：A kind of water-soluble colorful insulation coating and preparation method thereof.Be with
Acrylic emulsion (25-45%), colorful hollow ceramic microspheres (50-15%), precipitated calcium carbonate (50-20%), titanium dioxide (10-
25%), dispersant (0.5-1.5%), thickener (0.5-1.2%), defoamer (0.5-0.8%) and water (20-40%) are original
Material, by acrylic emulsion, water, titanium dioxide, precipitated calcium carbonate mix, be dispersed with stirring, be uniformly mixed through skin grinder barreling, colorful sky
After heart ceramic fine bead is dispersed through agent wetting, it is added to by several times in lotion, adds defoamer, thickener is uniformly mixed and forms.This
The paint colors of invention do not conform to the volatile organic solvents such as benzene, formaldehyde, have concurrently heat-insulated from colorful hollow ceramic fine bead is contained
Heat preservation energy-saving and dicoration, are good for the environment, and with prominent heat-insulating property and unfading, have obvious environment,
Social benefit.
4th, Chinese patent, denomination of invention：Aqueous flame-retardant and thermal-insulated coating and preparation method thereof；Application number：
200910l12619.0；Applicant：Xiamen University；Summary：Aqueous flame-retardant and thermal-insulated coating and preparation method thereof, is related to one kind
A kind of building coating, there is provided building thermal-insulating coating for integrating fire resistance, heat-insulating property and decoration function.Coating is by breast
Liquid, fire retardant, titanium dioxide, hollow glass micropearl, water and auxiliary agent composition, each component are lotion 35~40, fire-retardant by mass fraction
Agent 20~30, titanium dioxide 15~20, hollow glass micropearl 5~10,19~2l of water, 11~l5 of auxiliary agent.With a variety of inorganics, phosphorus
Class, nitrogen based flame retardant, using the synergistic effect between different flame retardant, can reach flame retardant effect in the case where dosage is less,
The physical property of paint coatings is not influenced at the same time；Pyroconductivity, thermal convection current and heat radiation are separately reduced by glass microballoon, protected
Warm nature energy, coating layer thickness are about 1mm with regard to that can reach good heat insulation effect.The insulation of coating and fire resistance are presented as heat conduction system
Number≤0.090W/ (mk), oxygen index (OI) >=28.0%.
But prepare a kind of heat-insulated with lightweight, high fire resisting, high durable, environmental protection, non-aging, long-term effect external thermal insulation
Coating, and then the purpose of building energy conservation, also without very ripe technology, therefore people also try in continuous research at present
Test.
The content of the invention
It is an object of the invention to provide a kind of heat insulating coatings used for building exterior wall and preparation method thereof, which has heat-insulated
High insulating effect, high durable, environmental protection, non-aging, long-acting effect.
What the present invention was realized in：
Heat insulating coatings used for building exterior wall, are made the coating and are made of the raw material of following parts by weight：
40~50 parts of lotion；
1~2 part of N hydroxymethyl acrylamide；
6~9 parts of aerosil；
4~6 parts of water；
1~2 part of titanate coupling agent；
7~14 parts of auxiliary agent；
7~9 parts of n-butyl acetate；
9~12 parts of heat-insulating heat-preserving material；
5~10 parts of modified nano calcium carbonate.
The preparation method of the modified nano calcium carbonate is：Nano-calcium carbonate calcium powder is dry in 115~120 DEG C of dehydrations
It is dry, it is then added in high-speed mixer, stirs and heat up, 90 DEG C stops heating, add the chelating of nano-calcium carbonate quality 2.0%
Type titanate coupling agent KR- 201, in 90 DEG C of modified 10min；Be separately added into again nano-calcium carbonate quality 2.0% stearic acid,
0.5% coconut oil and 1% technical white oil, are modified 10~15 min respectively again at 90 DEG C, shut down, discharging, obtain modification and receive
Rice calcium carbonate.
The lotion is silicone acrylic emulsion and the mixed liquor of pure-acrylic emulsion, both weight ratios are followed successively by 1.5:1；Wherein,
Silicone acrylic emulsion uses the A-102 products of Shanghai Zhen Zhou chemistry painting industries Co., Ltd production；Pure-acrylic emulsion shakes continent using Shanghai
The A-99 products of work coating Co., Ltd production.
The anionic lotion that A-102 silicone acrylic emulsions system's acrylate and organosilicon material are formed using the copolymerization of modern high technology technology,
For milky white micro-strip blue light color liquid, solid content 48 ± 1wt%, pH 7-9, viscosity 1000-3000mpa.s, glass transition temperature Tg
For 30 DEG C, 25 DEG C of minimum film formation temperature, 48h is not stratified not to be demulsified.The lotion has tiny particle diameter and excellent freeze-thaw stability
Property, mechanical stability and Calcium ion stability, its film has excellent water resistance, alkali resistance, adhesive force and the closed performance of machine, and
And with prominent pollution resistance, it can be applied to high-grade exterior wall latex paint, high-grade seal coat, the agent of lacquer cover, water-based encarpus tile
Paint.The anionic lotion that the pure third building emulsion systems of A-99 are formed with methacrylic acid monomer copolymerization is translucent milky white in blue light
Color liquid, solid content are 50 ± 1wt%, and 25 DEG C of pH is 7-8.5, and viscosity 1000-3000mpa.s, glass transition temperature Tg are 30
DEG C, 20 DEG C of minimum film formation temperature, in mechanical stability（2000r/min, stirs 45min）Under conditions of, do not flocculate, be not demulsified,
It is not stratified.Pure third building emulsions of A-99 are tiny with particle diameter, and viscosity is suitable, and paint film is hard, weather-proof, alkaline-resisting, scrub resistance is good, glue
Power and strong adhesive force are tied, has the features such as good color stuffing bearing capacity, the color developing of pigment and good various stability, can be applied to
High-weatherability exterior wall latex paint, interior wall high-performance zero diopter to high gloss emulsion paint, cement tile paint.
The N hydroxymethyl acrylamide, is white crystalline powder, 74~75 DEG C of fusing point, and soluble easily in water, ethanol is molten
In fatty acid ester, insoluble in hydrophobic solvents such as hydrocarbon, halogenated hydrocarbons.In the presence of aqueous solution has acid, heating can aggregate into rapidly
Insoluble resin.Due to the vinyl containing polymerization in molecular structure and the methylol of condensation performance, gather line style
Compound crosslinking is maximally efficient.If with acrylic ester monomer combined polymerization, methylol is introduced into, and is only heated i.e. cross-linking.
Aerosil（It is commonly called as fume colloidal silica）It is through a kind of made from oxyhydrogen flame pyrohydrolysis using chlorosilane
Finely, special amorphous powder body material, its product purity are high, and Average primary particle diameter is about 7 ~ 40nm, and specific surface area 50 ~
380m2/ g, SiO2Content >=99.8%.It is a kind of multi-functional additive, is widely used in coating, can play thickening, touch
Change, delustring etc. act on.In the present invention, aerosil is used as thixotropic agent, because usually in the construction process, due to
The solvent volatilization of coating edge is very fast, causes surface tension uneven, liquid is moved to edge, and network of silica
The movement of liquid can effectively be prevented and form webbing, while also prevent the sagging phenomenon of liquid in the curing process, make painting
Layer is uniformly.Meanwhile aerosil due to can form hydrogen bond and the middle low-shear viscosity in raising system, so as to play thickening
Act on therefore, application of the aerosil in oleaginous system is very extensive.After using thixotropic agent in coating, in construction
High-rate of shear under have compared with low-viscosity, contribute to coating to flow and be easy to construct；Low sheraing speed before construction and afterwards
Have under rate compared with high viscosity, can prevent pigment sedimentation and wet film sagging.In coating system, due to the small particle of aerosil
And high surface energy, they can be adsorbed on the surface of fine paint powders, and form a top layer in powder surface, improve point of powder
Property is dissipated, therefore can be used as dispersion aids.In same coating system, when adding aerosil can be obviously shortened scattered
Between, improve production efficiency.Aerosil can also improve the weatherability of coating, resistance to marring, improve coating and base material it
Between bond strength.Meanwhile aerosil has extremely strong ultraviolet radiation absorption, infrared light reflection characteristic, doses in coating
The middle anti-aging property that can improve coating.
In the present invention, add through chelating titanate coupling agent, stearic acid, coconut oil and technical white oil is modified receives
Rice calcium carbonate, eliminates the cohesion of nano-calcium carbonate itself, and particle diameter diminishes, and distribution is more equal, contributes to nano-calcium carbonate poly- in height
Dispersed in thing, modified nano-calcium carbonate and lotion bulk junction is strong with joint efforts, further increases the mechanical property of product
Energy.Also, study and find by inventor, modified nano-calcium carbonate oleophilic drainage, therefore modified nano calcium carbonate is added
Being added in the heat insulating coatings for building of the present invention has preferable compatibility and dispersiveness.
The titanate coupling agent is monoalkoxy pyrophosphoric acid ester type, suitable for the higher filler of water capacity of the present invention
System, such as mica powder, talcum powder, in this system, except monoalkoxy and the hydroxyl reaction on filler surface are formed and be coupled
Outside, pyrophosphoric acid ester group can also be decomposed to form phosphate-based, with reference to a part of water.Apply in soluble polyurethane coating industry,
Can increase paint filler amount, dispersion performance improves, and has result of prevention, can anti-floating, paint film intensity is improved, and color and luster is fresh
It is gorgeous, also have and urge dry characteristic, baking temperature can also be reduced to baking finish and shortens baking time.Titanate coupling agent by it
Alkoxy directly and filler surface adsorbed micro carboxyl or hydroxyl progress chemical action and be coupled.Pyrophosphoryl epoxide, which also has, to be hindered
Combustion, antirust, and the performance of enhancing bonding.In this coating, the R bases of titanate coupling agent can be anti-with the hydroxyl of inorganic filler surface
Should, the monolayer of coupling agent is formed, so as to play the role of chemical coupling.Long-chain moiety in titanate coupling agent molecule, rises
To the entanglement effect with polymer molecule and compatibility, improve the impact strength of material, reduce the surface energy of filler, system it is glutinous
Degree is significantly reduced, and has good lubricity and rheological property.
The auxiliary agent by the biocide mildewcides of 1~2 parts by weight, the levelling agent, 1~3 parts by weight of 1~3 parts by weight increasing
Thick dose and the coalescents composition of 4~6 parts by weight；The biocide mildewcide is double thiocarbamate or pentachlorophenol；
The levelling agent is acetylbutyrylcellulose；The thickener is hydroxyethyl cellulose；The coalescents are 2,2,
4- trimethyl -1,3- pentanediol mono isobutyrates.The biocide mildewcide is double thiocarbamate or pentachlorophenol.Apply
Added in material after biocide mildewcide by hindering thalline to breathe, or interference pathogen biosynthesis, destroy cell membrane synthesis,
Synthesis of obstruction class ester etc. achievees the purpose that fungus and mildew resistance.The levelling agent is acetylbutyrylcellulose, it has excellent anti-
It is wet, the performance such as ultraviolet resistance, cold-resistant, flexible, transparent, electric insulation, and can have with resin and higher boiling plasticizer preferable compatible
Property, moreover it is possible to do stripping lacquer, insulated paint, weather-proof high-grade paint and staple fibre.The thickener is hydroxyethyl cellulose, it is
A kind of white or faint yellow, tasteless, nontoxic threadiness or pulverulent solids, have thickening, suspend, bonding, emulsification, it is scattered,
Keep the performance such as moisture and protecting colloid.The coalescents are 2,2,4- trimethyl -1,3- pentanediol mono isobutyrates, should
The hydrolytic stability of material is very good, when adding in emulsion paint, is absorbed on emulsion particle, softens particle and in japanning
More preferable fusion can be caused.The coalescents can effectively coalescence emulsion particle, easily mix in lotion, and in higher content
Under do not influence the stability of coating, in addition, the strong solvent of the auxiliary agent or emulsion polymer.
In the present invention, the n-butyl acetate is used as solvent, there is the liquid of happy fruity smell for water white transparency
Body.N-butyl acetate is a kind of excellent organic solvent, to ethyl cellulose, acetylbutyrylcellulose, polystyrene, methyl-prop
Olefin(e) acid resin, chlorinated rubber and a variety of natural gums have preferable solubility property.And in the present invention, it act as：When
Film forming matter in dissolution of coatings；Second, the bin stability of increase coating；Third, it can assign coating good workability.
The heat-insulating heat-preserving material be hollow glass micropearl, expanded perlite and alumina silicate fibre mixture, three
Weight fraction ratio is followed successively by 1:1:1；The hollow glass micropearl uses the limited public affairs of Sinosteel Maanshan Institute of Mining Research
Take charge of building coating and adapt to model T32, T40, T46.Contain thin gas, its heat conduction inside compact arranged hollow glass micropearl
Coefficient is low, and very good heat insulation and preservation effect is played to building, using miniature spherical microballon specific surface area is small and the spy of low oil absorbency
Point, can greatly reduce the dosage of resin and usage amounts of other each production compositions in coating, on the premise of high filler loading capacity, coating
Viscosity increase unobvious, the usage amount of solvent can be reduced, reduce the discharge capacity of coating toxic gas in use, effectively
Reduce VOC indexs.Hollow glass micropearl is spherical particulate, plays the role of bearing, and frictional force is small, can strengthen the stream of coating
Dynamic spreading property, is more convenient construction.The present invention uses the expanded perlite of hollow bore configuration, its particle diameter is in l0-l00
Between nanometer.Expanded perlite is a kind of inorganic light weight heat-insulating material with high performance, the small (70~250kg/m of density3), make
It it is -200~800 DEG C with temperature range, thermal conductivity factor of the temperature in the range of 0~l00 DEG C is O.024~O.058w/ (m
K), have the advantages that low thermal conductivity, it is nontoxic, tasteless, be stale-proof, be fire-retardant, sound-absorbing, can be used as high-efficiency insulated, cold insulation packing material.Silicon
It is a kind of New type of light refractory material that sour aluminum fiber, which is called ceramic fibre, which has that unit weight is light, high temperature resistant, heat endurance
Well, the advantages that pyroconductivity is low, thermal capacitance is small, resistance to mechanical is vibrated, expanded by heating is small, heat-proof quality is good, is widely used in metallurgical, electricity
Power, machinery, chemical industry thermal hardware on insulation.The alumina silicate fibre that the present invention uses for 60-300 mesh staple fiber.
A kind of heat insulating coatings used for building exterior wall of the present invention, its production method comprise the following steps：
(1) sequentially adding the water of formula ratio and the auxiliary agent of formula ratio in a mixer, start stirring, rotating speed turns for 1000-1200/
Point, high speed dispersion 5-10min；
(2) titanate coupling agent is dissolved in 2ml toluene solvants in parts by weight, by formula ratio aerosil, heat-insulated
Thermal insulation material and modified nano calcium carbonate are added in mixer, start stirring, and rotating speed is 1000-1200 revs/min, is warming up to 70
DEG C -80 DEG C, titanate coupling agent solution is then uniformly added into using dripping method, drop rate is controlled in 1min/1 drops, dropwise addition
Between be 10-20min；Continue to stir 20-30min after adding, heat-insulating heat-preserving material and aerosil particle is coated
Last layer titanate coupling agent；
(3) lotion of formula ratio, N hydroxymethyl acrylamide and n-butyl acetate are finally put into, rotating speed is 500-600 revs/min,
Low speed disperses 5-10min.
Compared with prior art, the positive effect of the present invention is：
1st, the thermal insulation coatings film forming matter used for building exterior wall that the present invention produces in silicone acrylic emulsion and pure-acrylic emulsion due to adding
N hydroxymethyl acrylamide, aerosil, titanate coupling agent, auxiliary agent, n-butyl acetate, heat-insulating heat-preserving material and modification
After the materials such as nano-calcium carbonate, good chemical crosslinking can be played the role of, so that adhesive strength enhancing, the drawing of film forming matter
It is big to stretch intensity, heat-insulating property is improved, and extends the coating service life.
2nd, the mixture of hollow glass micropearl, expanded perlite and alumina silicate fibre is added as heat-insulating heat-preserving material, these three
The low thermal conductivity of material, extraordinary heat insulation and preservation effect is played to building.The heat-insulating heat-preserving material by reflected sunlight come
Reach heat-insulated purpose, can effectively suppress and shield the conduction of the radiant heat and heat of infrared ray, so as to ensure coating of the present invention
Heat preservation and insulation.The heat reflectivity of coating of the present invention is up to 90%, and thermal conductivity factor 0.034W/m.K, can effectively suppress the sun
With the radiant heat of infrared ray and conduction heat, heat-insulated suppression efficiency can keep heat in 70% object space not up to 90% or so
It is lost in.
3rd, in the present invention, add modified through chelating titanate coupling agent, stearic acid, coconut oil and technical white oil
Nano-calcium carbonate, eliminates the cohesion of nano-calcium carbonate itself, and particle diameter diminishes, and distribution is more equal, contributes to nano-calcium carbonate in height
Dispersed in polymers, modified nano-calcium carbonate and lotion bulk junction is strong with joint efforts, further increases the mechanics of product
Performance.Also, study and find by inventor, modified nano-calcium carbonate oleophilic drainage, therefore by modified nano calcium carbonate
Being added in the heat insulating coatings for building of the present invention has preferable compatibility and dispersiveness.
4th, heat insulating coatings have extensive social benefit to existing residential building reducing energy consumption.It can be obstructed too in summer
Sun radiation more than 89%, can suppress the absorption of most solar heats, can reflect indoor infrared heat more than 85% in the winter time so that
Indoor heat will not be lost in easily.It is therefore not necessary to open air-conditioning for a long time, indoor suitable temperature can be also kept well,
Make room cool in summer and warm in winter.Due to the feature of heat insulating coatings, building surface sunlight is reflexed in air, makes building
Surface does not absorb thermal energy, to reducing urban heat land effect, is of great significance.
Embodiment
Embodiment 1
First in parts by weight by 40 parts of lotions（The mixed liquor of A-102 silicone acrylic emulsions and A-99 pure-acrylic emulsions, both parts by weight
Number ratio is followed successively by 1.5:1）, 1 part of N hydroxymethyl acrylamide, 6 parts of aerosils, 4 parts of water, 1 part of titanate coupling agent
(monoalkoxy Pyrophosphate Type Yitanate Coupling Agent), 7 parts of auxiliary agents（1 part of double thiocarbamate, 1 part of acetate butyrate fiber
Element, 1 part of hydroxyethyl cellulose, 4 part 2,2,4- trimethyl -1,3- pentanediol mono isobutyrates）, 7 parts of n-butyl acetates, 9 parts every
Hot thermal insulation material（The mixture of hollow glass micropearl, expanded perlite and alumina silicate fibre, three's parts by weight ratio are followed successively by
1:1:1, wherein, hollow glass micropearl adapts to model using Sinosteel Maanshan Institute of Mining Research Co., Ltd.'s building coating
T32）, 5 parts of modified nano calcium carbonates, stock up.
The preparation method of the modified nano calcium carbonate is：Nano-calcium carbonate calcium powder is dry in 115~120 DEG C of dehydrations
It is dry, it is then added in high-speed mixer, stirs and heat up, 90 DEG C stops heating, add the chelating of nano-calcium carbonate quality 2.0%
Type titanate coupling agent KR- 201, in 90 DEG C of modified 10min；Be separately added into again nano-calcium carbonate quality 2.0% stearic acid,
0.5% coconut oil and 1% technical white oil, are modified 10~15 min respectively again at 90 DEG C, shut down, discharging, obtain modification and receive
Rice calcium carbonate.
A kind of heat insulating coatings used for building exterior wall, its production method comprise the following steps：
(1) sequentially adding the water of formula ratio and the auxiliary agent of formula ratio in a mixer, start stirring, rotating speed turns for 1000-1200/
Point, high speed dispersion 5-10min；
(2) titanate coupling agent is dissolved in 2ml toluene solvants in parts by weight, by formula ratio aerosil, heat-insulated
Thermal insulation material and modified nano calcium carbonate are added in mixer, start stirring, and rotating speed is 1000-1200 revs/min, is warming up to 70
DEG C -80 DEG C, titanate coupling agent solution is then uniformly added into using dripping method, drop rate is controlled in 1min/1 drops, dropwise addition
Between be 10-20min；Continue to stir 20-30min after adding, heat-insulating heat-preserving material and aerosil particle is coated
Last layer titanate coupling agent；
(3) lotion of formula ratio, N hydroxymethyl acrylamide and n-butyl acetate are finally put into, rotating speed is 500-600 revs/min,
Low speed disperses 5-10min.
Embodiment 2
First in parts by weight by 45 parts of lotions（The mixed liquor of A-102 silicone acrylic emulsions and A-99 pure-acrylic emulsions, both parts by weight
Number ratio is followed successively by 1.5:1）, 1.5 parts of N hydroxymethyl acrylamides, 7 parts of aerosils, 5 parts of water, 1.5 parts of titanate esters idols
Join agent (monoalkoxy Pyrophosphate Type Yitanate Coupling Agent), 12 parts of auxiliary agents（1.5 parts of pentachlorophenols, 2 parts of acetate butyrate fibers
Element, 2 parts of hydroxyethyl celluloses, 5 part 2,2,4- trimethyl -1,3- pentanediol mono isobutyrates）, 8 parts of n-butyl acetates, 10 parts
Heat-insulating heat-preserving material（The mixture of hollow glass micropearl, expanded perlite and alumina silicate fibre, three's parts by weight ratio is successively
For 1:1:1, wherein, hollow glass micropearl adapts to model using Sinosteel Maanshan Institute of Mining Research Co., Ltd.'s building coating
T40）, 8 parts of modified nano calcium carbonates, stock up.
The preparation method of the modified nano calcium carbonate is：Nano-calcium carbonate calcium powder is dry in 115~120 DEG C of dehydrations
It is dry, it is then added in high-speed mixer, stirs and heat up, 90 DEG C stops heating, add the chelating of nano-calcium carbonate quality 2.0%
Type titanate coupling agent KR- 201, in 90 DEG C of modified 10min；Be separately added into again nano-calcium carbonate quality 2.0% stearic acid,
0.5% coconut oil and 1% technical white oil, are modified 10~15 min respectively again at 90 DEG C, shut down, discharging, obtain modification and receive
Rice calcium carbonate.
A kind of heat insulating coatings used for building exterior wall, its production method comprise the following steps：
(1) sequentially adding the water of formula ratio and the auxiliary agent of formula ratio in a mixer, start stirring, rotating speed turns for 1000-1200/
Point, high speed dispersion 5-10min；
(2) titanate coupling agent is dissolved in 2ml toluene solvants in parts by weight, by formula ratio aerosil, heat-insulated
Thermal insulation material and modified nano calcium carbonate are added in mixer, start stirring, and rotating speed is 1000-1200 revs/min, is warming up to 70
DEG C -80 DEG C, titanate coupling agent solution is then uniformly added into using dripping method, drop rate is controlled in 1min/1 drops, dropwise addition
Between be 10-20min；Continue to stir 20-30min after adding, heat-insulating heat-preserving material and aerosil particle is coated
Last layer titanate coupling agent；
(3) lotion of formula ratio, N hydroxymethyl acrylamide and n-butyl acetate are finally put into, rotating speed is 500-600 revs/min,
Low speed disperses 5-10min.
Embodiment 3
First in parts by weight by 50 parts of lotions（The mixed liquor of A-102 silicone acrylic emulsions and A-99 pure-acrylic emulsions, both parts by weight
Number ratio is followed successively by 1.5:1）, 2 parts of N hydroxymethyl acrylamides, 9 parts of aerosils, 6 parts of water, 2 parts of titanate coupling agents
(monoalkoxy Pyrophosphate Type Yitanate Coupling Agent), 14 parts of auxiliary agents（2 parts of double thiocarbamates, 3 parts of acetate butyrate fibers
Element, 3 parts of hydroxyethyl celluloses, 6 part 2,2,4- trimethyl -1,3- pentanediol mono isobutyrates）, 9 parts of n-butyl acetates, 12 parts every
Hot thermal insulation material（The mixture of hollow glass micropearl, expanded perlite and alumina silicate fibre, three's parts by weight ratio are followed successively by
1:1:1, wherein, hollow glass micropearl adapts to model using Sinosteel Maanshan Institute of Mining Research Co., Ltd.'s building coating
T46）, 10 parts of modified nano calcium carbonates, stock up.
The preparation method of the modified nano calcium carbonate is：Nano-calcium carbonate calcium powder is dry in 115~120 DEG C of dehydrations
It is dry, it is then added in high-speed mixer, stirs and heat up, 90 DEG C stops heating, add the chelating of nano-calcium carbonate quality 2.0%
Type titanate coupling agent KR- 201, in 90 DEG C of modified 10min；Be separately added into again nano-calcium carbonate quality 2.0% stearic acid,
0.5% coconut oil and 1% technical white oil, are modified 10~15 min respectively again at 90 DEG C, shut down, discharging, obtain modification and receive
Rice calcium carbonate.
A kind of heat insulating coatings used for building exterior wall, its production method comprise the following steps：
(1) sequentially adding the water of formula ratio and the auxiliary agent of formula ratio in a mixer, start stirring, rotating speed turns for 1000-1200/
Point, high speed dispersion 5-10min；
(2) titanate coupling agent is dissolved in 2ml toluene solvants in parts by weight, by formula ratio aerosil, heat-insulated
Thermal insulation material and modified nano calcium carbonate are added in mixer, start stirring, and rotating speed is 1000-1200 revs/min, is warming up to 70
DEG C -80 DEG C, titanate coupling agent solution is then uniformly added into using dripping method, drop rate is controlled in 1min/1 drops, dropwise addition
Between be 10-20min；Continue to stir 20-30min after adding, heat-insulating heat-preserving material and aerosil particle is coated
Last layer titanate coupling agent；
(3) lotion of formula ratio, N hydroxymethyl acrylamide and n-butyl acetate are finally put into, rotating speed is 500-600 revs/min,
Low speed disperses 5-10min.
The coating made using the coating (200 grams of quality), carries out following performance detection respectively：
1st, Determination of conductive coefficients：According to the regulation in GB/T10294-88, GB/T13475-92 and JGJ 51-2002 standards,
Coating heat transfer coefficient is tested using heat conduction coefficient tester, thermal conductivity factor is small, illustrates that heat conductivility is poor.
2nd, sun reflectivity in surface is tested：According to the requirement of GJB 9001A -200l quality management systems, measure coating is in light
Reflectivity and hemispherical reflectance between spectral limit 250-2800nm.
3rd, heat insulating temperature difference testing：Coating is coated on the iron plate of 10mm x 10mm and makes model.The test sample plate of preparation
With being put into reference to model in temperature test instrument, two kinds of samples are heated at the same time, respectively instant recording heater box temperature, model rear cabinet
Temperature and reference model rear cabinet temperature.While heated to 1min, test sample plate rear cabinet temperature and the temperature with reference to model rear cabinet temperature
Degree is poor.
4th, durability test：(with reference to difficult GB/T1865-1997 of mark) carry out ageing-resistant performance survey in artificial ageing resistance storehouse
Examination, using this example product as test sample, is with the water emulsion coating (German shield ceramic insulation coating) of commercially available better performances
Control sample.Test result, control sample colour fading dusting time are 600h, and the ageing-resistant time of test sample for 2500h not
Fade, not dusting.Illustrate that the solvent based coating that the present invention obtains has good durability.
The test result of the present invention is as shown in the table:
Claims (5)
1. heat insulating coatings used for building exterior wall, it is characterised in that：The coating is prepared from the following raw materials in parts by weight：
40~50 parts of lotion；
1~2 part of N hydroxymethyl acrylamide；
6~9 parts of aerosil；
4~6 parts of water；
1~2 part of titanate coupling agent；
7~14 parts of auxiliary agent；
7~9 parts of n-butyl acetate；
9~12 parts of heat-insulating heat-preserving material；
5~10 parts of modified nano calcium carbonate；
The lotion is silicone acrylic emulsion and the mixed liquor of pure-acrylic emulsion, both weight ratios are followed successively by 1.5:1；Wherein, silicon third
Lotion uses the A-102 products of Shanghai Zhen Zhou chemistry painting industries Co., Ltd production；Pure-acrylic emulsion shakes continent chemical industry using Shanghai
The A-99 products of coating Co., Ltd production；
The auxiliary agent by the biocide mildewcide of 1~2 parts by weight, the levelling agent of 1~3 parts by weight, 1~3 parts by weight thickener
Formed with the coalescents of 4~6 parts by weight；The biocide mildewcide is double thiocarbamate or pentachlorophenol；It is described
Levelling agent be acetylbutyrylcellulose；The thickener is hydroxyethyl cellulose；The coalescents are 2,2,4- tri-
Methyl isophthalic acid, 3- pentanediol mono isobutyrates.
2. heat insulating coatings used for building exterior wall according to claim 1, it is characterised in that：The heat-insulating heat-preserving material
For the mixture of hollow glass micropearl, expanded perlite and alumina silicate fibre, three's weight fraction ratio is followed successively by 1:1:1；Institute
The hollow glass micropearl stated using Sinosteel Maanshan Institute of Mining Research Co., Ltd. building coating adapt to model T32, T40 and
Any of T46；The expanded perlite is hollow bore configuration, its particle diameter is between l0-l00 nanometers；Described
Alumina silicate fibre is the staple fiber of 60-300 mesh.
3. heat insulating coatings used for building exterior wall according to claim 1, it is characterised in that：The titanate coupling agent
For monoalkoxy Pyrophosphate Type Yitanate Coupling Agent.
4. heat insulating coatings used for building exterior wall according to claim 1, it is characterised in that：The modified nano-meter caco 3
The preparation method of calcium is：By nano-calcium carbonate calcium powder in 115~120 DEG C of dehydration and drying, it is then added in high-speed mixer, stirs
Mix and heat up, 90 DEG C stop heating, the chelating titanate coupling agent KR- 201 of nano-calcium carbonate quality 2.0% are added, 90
DEG C modified 10min；The stearic acid of nano-calcium carbonate quality 2.0%, 0.5% coconut oil and 1% technical white oil are separately added into again,
It is modified 10~15 min respectively again at 90 DEG C, shuts down, discharging, obtains modified nano calcium carbonate.
5. heat insulating coatings used for building exterior wall according to claim 1, it is characterised in that：Its preparation method includes following
Step:
(1) sequentially adding the water of formula ratio and the auxiliary agent of formula ratio in a mixer, start stirring, rotating speed turns for 1000-1200/
Point, high speed dispersion 5-10min；
(2) titanate coupling agent is dissolved in 2ml toluene solvants in parts by weight, by formula ratio aerosil, heat-insulated
Thermal insulation material and modified nano calcium carbonate are added in mixer, start stirring, and rotating speed is 1000-1200 revs/min, is warming up to 70
DEG C -80 DEG C, titanate coupling agent solution is then uniformly added into using dripping method, drop rate is controlled in 1min/1 drops, dropwise addition
Between be 10-20min；Continue to stir 20-30min after adding, heat-insulating heat-preserving material and aerosil particle is coated
Last layer titanate coupling agent；
(3) lotion of formula ratio, N hydroxymethyl acrylamide and n-butyl acetate are finally put into, rotating speed is 500-600 revs/min,
Low speed disperses 5-10min.
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| CN111635619A (en) * | 2020-05-25 | 2020-09-08 | 广东合胜实业股份有限公司 | Antibacterial heat-insulating material and preparation method thereof |
| CN113416482A (en) * | 2020-11-14 | 2021-09-21 | 深圳市蓝博环保科技有限公司 | Waterborne polyurethane coating |
| CN113621286A (en) * | 2021-08-13 | 2021-11-09 | 成都启铎弗涂料科技有限公司 | Heat-preservation and heat-insulation composite coating for outer wall and preparation method thereof |
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