CN106752724A - Epoxy anticorrosion fireproof antibacterial coating - Google Patents
Epoxy anticorrosion fireproof antibacterial coating Download PDFInfo
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- CN106752724A CN106752724A CN201710018123.1A CN201710018123A CN106752724A CN 106752724 A CN106752724 A CN 106752724A CN 201710018123 A CN201710018123 A CN 201710018123A CN 106752724 A CN106752724 A CN 106752724A
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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
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
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- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
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- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/14—Paints containing biocides, e.g. fungicides, insecticides or pesticides
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/18—Fireproof paints including high temperature resistant paints
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
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- C08K2201/011—Nanostructured additives
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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Abstract
The present invention relates to a kind of epoxy anticorrosion fireproof antibacterial coating, include according to the raw material of percentage by weight：Epoxy resin 20 ~ 30%, phenolic aldehyde amine 3 ~ 8%, nano titanium oxide 3 ~ 8%, nano silicon 3 ~ 8%, nano zine oxide 3 ~ 8%, deionized water 5 ~ 10%, methylisothiazolinone 3 ~ 8%, polyhedral silsesquioxane 2 ~ 5%, butylated amino resin 4 ~ 8%, flaky graphite 3 ~ 6%, glass flake 2 ~ 4%, sericite in powder 1 ~ 3%, aluminium triphosphate 1 ~ 3%, trbasic zinc phosphate 1 ~ 3%, alundum (Al2O3) 1 ~ 4%, tertiary amine curing accelerator 1 ~ 2%, silane coupler 1 ~ 3%, ethanol ether acetate 5 ~ 10%, diluent 1 ~ 2%, cellulose acetate 2 ~ 4%, melamine fiber 2 ~ 5%, aqueous magnesium hydroxide 2 ~ 6%.According to the epoxy anticorrosion fireproof antibacterial coating that above-mentioned formula is obtained, with fire protection flame retarding, antibacterial, the characteristic of the excellent performance such as film is tough and tensile, wear-resisting, adhesive force is good, resistant to chemical etching, water-fast.
Description
Technical field
The present invention relates to anticorrosive paint, specifically related to a kind of epoxy anticorrosion fireproof antibacterial coating.
Background technology
With the development of modern industry, the appearance and the construction of many modern projects in a collection of infant industry field, to anti-corrosion
The ability and service life that coating bears environment propose requirement higher.Conventional anticorrosive paint can not meet these need
Will.It has been proposed that " anticorrosive paint (Heavy Duty Coating) " concept, refer generally to make in harsh corrosive environment
With, including priming paint and finish paint matched coating.Briefly：Anticorrosive paint is exactly longer service life, is suitable for harsher
The coating of use environment be referred to as anticorrosive paint.Anticorrosive paint typically can be used 10 years in chemical atmosphere and marine environment
Or more than 15 years, in acid, alkali, salt and solvent medium, and under the etching condition of uniform temperature, typically should be able to using 5 years with
On.The application of anticorrosive paint is related to modernize every field, large-scale industrial and mining enterprises：Chemical industry, petrochemical industry, steel and large-scale
Pipeline, storage tank, equipment that mine smelts etc.；Important energy industry：Natural gas, oil pipe, oil tank, power transmission and transformation, nuclear power generating equipment and
Coal mine etc.；The communications and transportation of modernization：Bridge, ship, container, train and automobile etc.；Emerging ocean engineering：It is marine
Facility, seashore and bay structure and offshore drilling platformses etc..
Epoxy resin is the polymer being condensed under base catalysis by epoxychloropropane and bisphenols, with molecular weight not
Together, liquid and solid epoxy can be divided into.Coating with epoxy resin as main film forming substance is referred to as epoxy coating.Annual generation
More than 40% epoxy resin is there are about in boundary to be used to manufacture epoxy coating, and wherein most is used for corrosion-resistant field.Epoxy anticorrosion is prevented fires
Antibiotic paint be at present in the world with one of the most extensive, mostly important anticorrosive paint.
The content of the invention
It is an object of the present invention to provide a kind of epoxy anticorrosion fireproof antibacterial coating, with fire protection flame retarding, antibacterial, film it is tough and tensile,
The characteristic of the excellent performance such as wear-resisting, adhesive force is good, resistant to chemical etching, water-fast.Suitable for steel surface such as offshore drilling platform, stone
The equipment such as oil tank, petrochemical equipment, basin, tank car and concrete basin, aeration tank, cooling tower, coal bunker, floor, boring tower.
In order to realize the above object the technical solution adopted by the present invention is：A kind of epoxy anticorrosion fireproof antibacterial coating, presses
Raw material according to percentage by weight includes：Epoxy resin 20 ~ 30%, phenolic aldehyde amine 3 ~ 8%, nano titanium oxide 3 ~ 8%, nanometer titanium dioxide
Silicon 3 ~ 8%, nano zine oxide 3 ~ 8%, deionized water 5 ~ 10%, methylisothiazolinone 3 ~ 8%, polyhedral silsesquioxane 2 ~ 5%,
Butylated amino resin 4 ~ 8%, flaky graphite 3 ~ 6%, glass flake 2 ~ 4%, sericite in powder 1 ~ 3%, aluminium triphosphate 1 ~ 3%,
Trbasic zinc phosphate 1 ~ 3%, alundum (Al2O3) 1 ~ 4%, tertiary amine curing accelerator 1 ~ 2%, silane coupler 1 ~ 3%, ethanol ether acetic acid
Ester 5 ~ 10%, diluent 1 ~ 2%, cellulose acetate 2 ~ 4%, melamine fiber 2 ~ 5%, aqueous magnesium hydroxide 2 ~ 6%.
Preferably, described epoxy anticorrosion fireproof antibacterial coating, includes according to the raw material of percentage by weight：Epoxy resin
23%, phenolic aldehyde amine 5%, nano titanium oxide 6%, nano silicon 5%, nano zine oxide 4%, deionized water 8%, methyl-isothiazol
Quinoline ketone 4%, polyhedral silsesquioxane 3%, butylated amino resin 5%, flaky graphite 4%, glass flake 3%, sericite in powder
2%, aluminium triphosphate 2%, trbasic zinc phosphate 2%, alundum (Al2O3) 3%, tertiary amine curing accelerator 1%, silane coupler 2%, ethanol
Ethyl ether acetate ester 7%, diluent 1%, cellulose acetate 3%, melamine fiber 3%, aqueous magnesium hydroxide 4%.
Further, described nano titanium oxide is anatase titanium dioxide.
The technical effects of the invention are that：The epoxy anticorrosion fireproof antibacterial coating obtained according to above-mentioned formula, with fire prevention
The characteristic of the excellent performance such as fire-retardant, antibacterial, film are tough and tensile, wear-resisting, adhesive force is good, resistant to chemical etching, water-fast.Phenolic aldehyde amine is used as solid
Agent, can rapid curing at low ambient temperatures, and with good antiseptic property, phenolic aldehyde amine has compatible well with epoxy resin
Property, so as to the viscosity of system can be reduced further, improve the compatibility of epoxy resin and curing agent.Nano titanium oxide shielding is purple
Outside line effect is strong, has good dispersiveness and weatherability, and improve antibacterial, self-cleaning, the ageing resistace of corrosion resistant coating.Use
Nanometer anatase titania material, the dominant mechanism of its polluting proofing property shows two aspects：One is dichloride in anatase type dioxy
Change titanium photocatalytic Degradation in itself, nano titanium oxide constantly decomposes the organic matter for being gathered in coating surface under light illumination,
The spot of absorption is set to lose adhesive effect with coating；Two is the addition of nano titanium oxide, can produce hydrophilic surface, every
Exhausted oiliness pollutant, mitigates rainprint pollution.Nano silicon also has excellent self-cleaning and ageing resistance.Nano zine oxide is
A kind of multi-functional new inorganic material, low cost, the granular size of the nano zine oxide used in the present invention is about 1~30
Nanometer, such nano zine oxide can play electrostatic screen, and anti-static effect is fine, this be its be used for one of the invention it is excellent
Gesture.Additionally, such nano zine oxide can make the coating have shielding ultraviolet rays, absorb infrared ray and fungus and mildew resistance and act on.And receive
Rice titanium dioxide, nano silicon, nano zine oxide have certain fire retardancy.Using the different thiophene of the methyl of nontoxic pollution-free
Used as efficient germicide, heat-resisting waterborne preservative, the growth for suppressing microorganism has effect well to oxazoline ketone, can press down
The growth of bacterium processed, fungi, mould and mould.Polyhedral silsesquioxane is the distinctive organic silicon fibre retardant of a class, in pole
Excellent fire-retardant, mechanics and thermal property can be shown under low addition.The addition of melamine fiber improves the present invention and applies
The fire protection flame retarding ability of material.Aqueous magnesium hydroxide stability is strong, used as the environment friendly flame retardant of corrosion resistant coating.This epoxy anticorrosion is prevented fires
Antibiotic paint has fabulous adhesive force, containing the fat-based and ehter bond of not facile hydrolysis in epoxy resin structural, can produce electricity
Magnetic pull.In addition, the free key in active in the curing process epoxy radicals and dielectric surface reacts and forms firmization
Key is learned, so that epoxy coating obtains fabulous adhesive force.With excellent Corrosion Protection, epoxy resin cure is applied
Layer, phenyl ring, ehter bond etc. containing stabilization, compact structure is acidproof, alkaline-resisting, organic solvent-resistant, water-fast.Paint film is to metal adhesion
Good, structure stomata is small, makes various corrosive mediums be difficult to penetrate into metal surface, so high corrosion resistance.With good machine
Tool performance, because the hydrocarbon key of rigid benzene nucleus in epoxy resin cure coating structure and flexibility is alternately arranged, rigid flexible system makes coating
It is hard and flexible.In addition, being generated without small molecule by-product in the curing process, gas is not produced, volume contraction is small, thermal expansion
Coefficient is small, make coating not reason temperature and stress and produce cracking.Paint film flexibility is good, more much larger than phenolic resinoid.
Stability with height, thermoplasticity is good in itself for epoxy resin, and being not added with curing agent will not solidify, and also be notheated change.This ring
Oxygen anti-corrosion fireproof antibacterial coating has the stability of height, it is adaptable to steel surface such as offshore drilling platform, petroleum storage tank, oil
The equipment such as chemical industry equipment, basin, tank car and concrete basin, aeration tank, cooling tower, coal bunker, floor, boring tower.
Specific embodiment
Below in conjunction with the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described,
Obviously, described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Based in the present invention
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, all
Belong to the scope of protection of the invention.
Embodiment 1：A kind of epoxy anticorrosion fireproof antibacterial coating, includes according to the raw material of percentage by weight：Epoxy resin
23%, phenolic aldehyde amine 5%, nano titanium oxide 6%, nano silicon 5%, nano zine oxide 4%, deionized water 8%, methyl-isothiazol
Quinoline ketone 4%, polyhedral silsesquioxane 3%, butylated amino resin 5%, flaky graphite 4%, glass flake 3%, sericite in powder
2%, aluminium triphosphate 2%, trbasic zinc phosphate 2%, alundum (Al2O3) 3%, tertiary amine curing accelerator 1%, silane coupler 2%, ethanol
Ethyl ether acetate ester 7%, diluent 1%, cellulose acetate 3%, melamine fiber 3%, aqueous magnesium hydroxide 4%.
Further, described nano titanium oxide is anatase titanium dioxide.
The technical effects of the invention are that：The epoxy anticorrosion fireproof antibacterial coating obtained according to above-mentioned formula, with fire prevention
The characteristic of the excellent performance such as fire-retardant, antibacterial, film are tough and tensile, wear-resisting, adhesive force is good, resistant to chemical etching, water-fast.Phenolic aldehyde amine is used as solid
Agent, can rapid curing at low ambient temperatures, and with good antiseptic property, phenolic aldehyde amine has compatible well with epoxy resin
Property, so as to the viscosity of system can be reduced further, improve the compatibility of epoxy resin and curing agent.Nano titanium oxide shielding is purple
Outside line effect is strong, has good dispersiveness and weatherability, and improve antibacterial, self-cleaning, the ageing resistace of corrosion resistant coating.Use
Nanometer anatase titania material, the dominant mechanism of its polluting proofing property shows two aspects：One is dichloride in anatase type dioxy
Change titanium photocatalytic Degradation in itself, nano titanium oxide constantly decomposes the organic matter for being gathered in coating surface under light illumination,
The spot of absorption is set to lose adhesive effect with coating；Two is the addition of nano titanium oxide, can produce hydrophilic surface, every
Exhausted oiliness pollutant, mitigates rainprint pollution.Nano silicon also has excellent self-cleaning and ageing resistance.Nano zine oxide is
A kind of multi-functional new inorganic material, low cost, the granular size of the nano zine oxide used in the present invention is about 1~30
Nanometer, such nano zine oxide can play electrostatic screen, and anti-static effect is fine, this be its be used for one of the invention it is excellent
Gesture.Additionally, such nano zine oxide can make the coating have shielding ultraviolet rays, absorb infrared ray and fungus and mildew resistance and act on.And receive
Rice titanium dioxide, nano silicon, nano zine oxide have certain fire retardancy.Using the different thiophene of the methyl of nontoxic pollution-free
Used as efficient germicide, heat-resisting waterborne preservative, the growth for suppressing microorganism has effect well to oxazoline ketone, can press down
The growth of bacterium processed, fungi, mould and mould.Polyhedral silsesquioxane is the distinctive organic silicon fibre retardant of a class, in pole
Excellent fire-retardant, mechanics and thermal property can be shown under low addition.The addition of melamine fiber improves the present invention and applies
The fire protection flame retarding ability of material.Aqueous magnesium hydroxide stability is strong, used as the environment friendly flame retardant of corrosion resistant coating.This epoxy anticorrosion is prevented fires
Antibiotic paint has fabulous adhesive force, containing the fat-based and ehter bond of not facile hydrolysis in epoxy resin structural, can produce electricity
Magnetic pull.In addition, the free key in active in the curing process epoxy radicals and dielectric surface reacts and forms firmization
Key is learned, so that epoxy coating obtains fabulous adhesive force.With excellent Corrosion Protection, epoxy resin cure is applied
Layer, phenyl ring, ehter bond etc. containing stabilization, compact structure is acidproof, alkaline-resisting, organic solvent-resistant, water-fast.Paint film is to metal adhesion
Good, structure stomata is small, makes various corrosive mediums be difficult to penetrate into metal surface, so high corrosion resistance.With good machine
Tool performance, because the hydrocarbon key of rigid benzene nucleus in epoxy resin cure coating structure and flexibility is alternately arranged, rigid flexible system makes coating
It is hard and flexible.In addition, being generated without small molecule by-product in the curing process, gas is not produced, volume contraction is small, thermal expansion
Coefficient is small, make coating not reason temperature and stress and produce cracking.Paint film flexibility is good, more much larger than phenolic resinoid.
Stability with height, thermoplasticity is good in itself for epoxy resin, and being not added with curing agent will not solidify, and also be notheated change.This ring
Oxygen anti-corrosion fireproof antibacterial coating has the stability of height, it is adaptable to steel surface such as offshore drilling platform, petroleum storage tank, oil
The equipment such as chemical industry equipment, basin, tank car and concrete basin, aeration tank, cooling tower, coal bunker, floor, boring tower.
Embodiment 2：A kind of epoxy anticorrosion fireproof antibacterial coating, includes according to the raw material of percentage by weight：Epoxy resin
28%, phenolic aldehyde amine 6%, nano titanium oxide 5%, nano silicon 5%, nano zine oxide 5%, deionized water 8%, methyl-isothiazol
Quinoline ketone 4%, polyhedral silsesquioxane 3%, butylated amino resin 5%, flaky graphite 3%, glass flake 3%, sericite in powder
1%, aluminium triphosphate 1%, trbasic zinc phosphate 1%, alundum (Al2O3) 1%, tertiary amine curing accelerator 1%, silane coupler 1%, ethanol
Ethyl ether acetate ester 6%, diluent 1%, cellulose acetate 2%, melamine fiber 4%, aqueous magnesium hydroxide 6%.
Further, described nano titanium oxide is anatase titanium dioxide.
The technical effects of the invention are that：The epoxy anticorrosion fireproof antibacterial coating obtained according to above-mentioned formula, with fire prevention
The characteristic of the excellent performance such as fire-retardant, antibacterial, film are tough and tensile, wear-resisting, adhesive force is good, resistant to chemical etching, water-fast.This epoxy anticorrosion is prevented
Fiery antibiotic paint has the stability of height, it is adaptable to which steel surface such as offshore drilling platform, petroleum storage tank, petrochemical industry set
The equipment such as standby, basin, tank car and concrete basin, aeration tank, cooling tower, coal bunker, floor, boring tower.
Embodiment 3：A kind of epoxy anticorrosion fireproof antibacterial coating, includes according to the raw material of percentage by weight：Epoxy resin
22%, phenolic aldehyde amine 6%, nano titanium oxide 7%, nano silicon 7%, nano zine oxide 6%, deionized water 9%, methyl-isothiazol
Quinoline ketone 5%, polyhedral silsesquioxane 3%, butylated amino resin 5%, flaky graphite 4%, glass flake 2%, sericite in powder
2%, aluminium triphosphate 1%, trbasic zinc phosphate 1%, alundum (Al2O3) 2%, tertiary amine curing accelerator 1%, silane coupler 1%, ethanol
Ethyl ether acetate ester 6%, diluent 1%, cellulose acetate 3%, melamine fiber 3%, aqueous magnesium hydroxide 3%.
Further, described nano titanium oxide is anatase titanium dioxide.
The technical effects of the invention are that：The epoxy anticorrosion fireproof antibacterial coating obtained according to above-mentioned formula, with fire prevention
The characteristic of the excellent performance such as fire-retardant, antibacterial, film are tough and tensile, wear-resisting, adhesive force is good, resistant to chemical etching, water-fast.This epoxy anticorrosion is prevented
Fiery antibiotic paint has the stability of height, it is adaptable to which steel surface such as offshore drilling platform, petroleum storage tank, petrochemical industry set
The equipment such as standby, basin, tank car and concrete basin, aeration tank, cooling tower, coal bunker, floor, boring tower.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be in other specific forms realized.
Claims (3)
1. a kind of epoxy anticorrosion fireproof antibacterial coating, it is characterised in that the raw material according to percentage by weight includes：Epoxy resin
20 ~ 30%, phenolic aldehyde amine 3 ~ 8%, nano titanium oxide 3 ~ 8%, nano silicon 3 ~ 8%, nano zine oxide 3 ~ 8%, deionized water 5 ~
10%, methylisothiazolinone 3 ~ 8%, polyhedral silsesquioxane 2 ~ 5%, butylated amino resin 4 ~ 8%, flaky graphite 3 ~
6%, glass flake 2 ~ 4%, sericite in powder 1 ~ 3%, aluminium triphosphate 1 ~ 3%, trbasic zinc phosphate 1 ~ 3%, alundum (Al2O3) 1 ~ 4%, tertiary amine
Curing accelerator 1 ~ 2%, silane coupler 1 ~ 3%, ethanol ether acetate 5 ~ 10%, diluent 1 ~ 2%, cellulose acetate 2 ~
4%, melamine fiber 2 ~ 5%, aqueous magnesium hydroxide 2 ~ 6%.
2. epoxy anticorrosion fireproof antibacterial coating according to claim 1, it is characterised in that according to the original of percentage by weight
Material includes：Epoxy resin 23%, phenolic aldehyde amine 5%, nano titanium oxide 6%, nano silicon 5%, nano zine oxide 4%, deionization
Water 8%, methylisothiazolinone 4%, polyhedral silsesquioxane 3%, butylated amino resin 5%, flaky graphite 4%, glass
Scale 3%, sericite in powder 2%, aluminium triphosphate 2%, trbasic zinc phosphate 2%, alundum (Al2O3) 3%, tertiary amine curing accelerator 1%, silicon
Alkane coupling agent 2%, ethanol ether acetate 7%, diluent 1%, cellulose acetate 3%, melamine fiber 3%, aqueous hydroxide
Magnesium 4%.
3. epoxy anticorrosion fireproof antibacterial coating according to claim 1 and 2, it is characterised in that described nanometer titanium dioxide
Titanium is anatase titanium dioxide.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710018123.1A CN106752724A (en) | 2017-01-11 | 2017-01-11 | Epoxy anticorrosion fireproof antibacterial coating |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710018123.1A CN106752724A (en) | 2017-01-11 | 2017-01-11 | Epoxy anticorrosion fireproof antibacterial coating |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107324806A (en) * | 2017-07-19 | 2017-11-07 | 合肥铭佑高温技术有限公司 | One kind is used for ceramic fire resistant coating composite material and preparation method |
| CN109337524A (en) * | 2018-11-16 | 2019-02-15 | 临沂大学 | A kind of drag reduction anticorrosive paint and preparation method thereof |
| CN112898862A (en) * | 2019-12-04 | 2021-06-04 | 娄底市鼎宏自动化科技有限公司 | Mining machinery surface weather-resistant coating |
| CN113755063A (en) * | 2021-09-15 | 2021-12-07 | 孙志远 | Exterior wall heat insulation coating and preparation method thereof |
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| CN102719173A (en) * | 2012-06-21 | 2012-10-10 | 北京国泰瑞华精藻硅特种材料有限公司 | Epoxy anti-corrosive paint used for underwater concrete |
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| CN113755063A (en) * | 2021-09-15 | 2021-12-07 | 孙志远 | Exterior wall heat insulation coating and preparation method thereof |
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