CN109161246A - A kind of building coating heat shielding additives and preparation method - Google Patents
A kind of building coating heat shielding additives and preparation method Download PDFInfo
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- CN109161246A CN109161246A CN201810965564.7A CN201810965564A CN109161246A CN 109161246 A CN109161246 A CN 109161246A CN 201810965564 A CN201810965564 A CN 201810965564A CN 109161246 A CN109161246 A CN 109161246A
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- 238000000576 coating method Methods 0.000 title claims abstract description 94
- 239000011248 coating agent Substances 0.000 title claims abstract description 92
- 239000000654 additive Substances 0.000 title claims abstract description 38
- 238000002360 preparation method Methods 0.000 title claims abstract description 30
- 239000011521 glass Substances 0.000 claims abstract description 51
- 239000000839 emulsion Substances 0.000 claims abstract description 24
- 239000007788 liquid Substances 0.000 claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000009413 insulation Methods 0.000 claims abstract description 17
- 239000002243 precursor Substances 0.000 claims abstract description 16
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims abstract description 14
- 239000003995 emulsifying agent Substances 0.000 claims abstract description 14
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000000084 colloidal system Substances 0.000 claims abstract description 10
- 235000017557 sodium bicarbonate Nutrition 0.000 claims abstract description 10
- 238000003756 stirring Methods 0.000 claims abstract description 10
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims abstract description 9
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 claims abstract description 9
- 238000006243 chemical reaction Methods 0.000 claims abstract description 9
- 239000003094 microcapsule Substances 0.000 claims abstract description 8
- 238000010438 heat treatment Methods 0.000 claims abstract description 7
- 238000002156 mixing Methods 0.000 claims abstract description 7
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 15
- 230000008569 process Effects 0.000 claims description 12
- 239000003999 initiator Substances 0.000 claims description 10
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 8
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 8
- 239000004698 Polyethylene Substances 0.000 claims description 8
- QLVHFTGKDGTJDH-UHFFFAOYSA-N acetic acid;ethenyl acetate Chemical compound CC(O)=O.CC(=O)OC=C QLVHFTGKDGTJDH-UHFFFAOYSA-N 0.000 claims description 8
- -1 polyethylene Polymers 0.000 claims description 8
- 229920000573 polyethylene Polymers 0.000 claims description 8
- 230000035484 reaction time Effects 0.000 claims description 8
- 238000010792 warming Methods 0.000 claims description 8
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 239000006071 cream Substances 0.000 claims 1
- 238000002310 reflectometry Methods 0.000 abstract description 6
- 238000006116 polymerization reaction Methods 0.000 abstract description 3
- 239000004372 Polyvinyl alcohol Substances 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 abstract description 2
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 abstract 1
- 229940117958 vinyl acetate Drugs 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 11
- 230000000052 comparative effect Effects 0.000 description 9
- 238000000465 moulding Methods 0.000 description 8
- KUAZQDVKQLNFPE-UHFFFAOYSA-N thiram Chemical compound CN(C)C(=S)SSC(=S)N(C)C KUAZQDVKQLNFPE-UHFFFAOYSA-N 0.000 description 8
- 239000008367 deionised water Substances 0.000 description 7
- 229910021641 deionized water Inorganic materials 0.000 description 7
- 239000006185 dispersion Substances 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 5
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- 239000002518 antifoaming agent Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 239000003973 paint Substances 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 241000276489 Merlangius merlangus Species 0.000 description 2
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical class OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 2
- 239000002033 PVDF binder Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000012752 auxiliary agent Substances 0.000 description 2
- 239000011324 bead Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 description 2
- 239000006210 lotion Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000011806 microball Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 235000010215 titanium dioxide Nutrition 0.000 description 2
- 239000000080 wetting agent Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000002528 anti-freeze Effects 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- XUCNUKMRBVNAPB-UHFFFAOYSA-N fluoroethene Chemical group FC=C XUCNUKMRBVNAPB-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011325 microbead Substances 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 239000003002 pH adjusting agent Substances 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 229910001562 pearlite Inorganic materials 0.000 description 1
- 229920002689 polyvinyl acetate Polymers 0.000 description 1
- 239000011118 polyvinyl acetate Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 229920001909 styrene-acrylic polymer Polymers 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 235000013618 yogurt Nutrition 0.000 description 1
Classifications
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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
- 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
- C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F218/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an acyloxy radical of a saturated carboxylic acid, of carbonic acid or of a haloformic acid
- C08F218/02—Esters of monocarboxylic acids
- C08F218/04—Vinyl esters
- C08F218/08—Vinyl acetate
-
- 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
-
- 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
- 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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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Inorganic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
The present invention relates to a kind of building coating heat shielding additives and preparation methods, belong to building coating preparation field.The preparation method of building coating heat shielding additives, specifically: a, be added to the water polyvinyl alcohol colloid, emulsifier, sodium bicarbonate mixing, and hollow glass micropearl is added in heating stirring；B, vinylacetate, acrylic acid and butyl acrylate are made into precursor liquid, are added in mixed emulsion obtained, heating and thermal insulation reaction causes polymerization, is then down to room temperature, and adjusting pH value is 7, then is dried in vacuo to obtain coating hollow glass micropearl microcapsules；That is building coating heat shielding additives.The building coating heat shielding additives that the present invention is prepared can improve the reflectivity and weatherability of coating, enhance its heat insulation, have the advantages that environmental protection and energy saving.
Description
Technical field
The present invention relates to a kind of building coating heat shielding additives and preparation methods, belong to building coating preparation field.
Background technique
Have in " building thermal performance design specification " clearly stipulate that architectural design must be examined sufficiently in the area of summer sweltering heat
Consider the requirement of its heat-insulated aspect.Compound Outer Wall Heat-insulated Paint is by effectively reflected sunlight, reduction heat in wall
Conduction efficiency and exterior wall thermal energy is radiated by way of infrared ray, worked on the three areas simultaneously, to reduce building to from too
The absorption of positive heat has obstructed heat from the export-oriented indoor conduction of wall to a certain extent, can be obviously improved room temperature, reduce
Energy consumption, it is more and more of interest by society.Study at this stage it is more mature and be generalized to exterior wall in the market every
Hot coating is mostly white, this is because white colour itself has higher reflectivity relative to other colors, to sunlight, just
In the insulating moulding coating for preparing preferable performance.
Hollow glass micropearl is the most important pigments and fillers of Compound Outer Wall Heat-insulated Paint, it is that partial size is tens microns, wall
The hollow beads that about one micron of thickness, main component is borosilicate, special hollow structure, and it is super to impart hollow glass micropearl
Low thermal coefficient and preferable cold-and-heat resistent shrinkage reduce film so as to enhance the thermal resistance separating performance and elasticity of film
Cracking and the de- reflection for splitting phenomenon.The process for producing special with it is related, and bead surface height vitrifying, this allows it also to have
Higher sun luminous reflectance, reflecting properties are good.When adding hollow glass micropearl in exterior coating, it is equivalent in film
In put numerous thermal coefficient close to zero cavity, can conduction of the trap heat in film well, Er Qieyou
In its higher sun luminous reflectance, most of solar energy can be dissipated in the form of reflection spills over ambient enviroment, reduces from source
The absorption of heat.But due to the dispersibility that hollow glass micropearl is poor in water paint, limits it and applied in water-borne heat-insulating
Application in material.
Application No. is 201711184161.0 Chinese patents to disclose a kind of high-performance hollow glass micropearl insulating moulding coating
And preparation method thereof.The present invention provides a kind of high-performance hollow glass micropearl insulating moulding coating and preparation method thereof, is related to coating skill
Art field.High-performance hollow glass micropearl insulating moulding coating of the present invention includes following raw material: hollow glass micropearl, elastomeric propylene yogurt
Liquid, stabilizer, silicone acrylic emulsion, ceramic powder, crushed crude pearlite, levelling agent, auxiliary agent, water.High-performance hollow glass micropearl of the present invention every
" interior " environment temperature can be effectively reduced after external wall in hot coating application, compared with not brushing, brush high-performance of the present invention
The appearance of " interior " environment temperature declines by a relatively large margin after hollow glass micropearl insulating moulding coating, which is that one kind has reflection, resistance
Every the coating of dual heat-proof quality, there is stronger reflecting properties and lower heating conduction to the heat radiation from the sun.
Application No. is 201110324224.4 Chinese patents to disclose a kind of Double-coated hollow glass microbead heat-insulated coating
And preparation method thereof.The present invention discloses a kind of double coating modification hollow glass micropearl insulating moulding coatings and preparation method thereof.By following
Raw material is prepared by weight percentage: organic-silicon-modified styrene-acrylic emulsion 20%-30%, double coating modification hollow glass micropearls
9%-13%, rutile titanium dioxide 8%-12%, talcum powder 5%-8%, coarse whiting 17%-23%, ethylene glycol 1.5%-2%, methylol are fine
Tie up element 0.13%-0.2%, dispersing agent 0.6%-1%, defoaming agent 0.35-0.45%, wetting agent 0.15%-0.19%, multifunctional assistant
0.08%-0.13%, coalescing agent 1.0%-1.5%, water surplus；The present invention is located in advance by carrying out double cladding process to hollow glass micropearl
Reason, then choose silicone acrylic emulsion be base-material, using pre-process hollow glass micropearl, rutile type titanium white, talcum powder, coarse whiting etc. as
Pigments and fillers add certain auxiliary agent, and reflective insulation coating is made.The coating can improve its reflectivity and weatherability, have ring
Energy conservation is protected, simple production process, dispersion effect is good, and at low cost, performance is stablized, beneficial effect with long service life.
Application No. is 201210502282.6 Chinese patents to disclose a kind of reflective insulation outer wall building coating and preparation
Method.The invention discloses a kind of reflective insulation outer wall building coatings, belong to the exterior coating technical field of building；Reflection every
Hot outer wall building coating is as follows by weight: appropriate amount of water, and 0.2~0.3 part of cellulose, 0.15~0.2 part of pH adjusting agent, dispersion
0.5~0.7 part of agent, 0.15~0.4 part of wetting agent, 10.15~0.3 parts of defoaming agent, 18~25 parts of titanium dioxide, 8~12 parts of filler,
2~3 parts of far-infared ceramic powder (1250 mesh), 0~4 part of hollow glass micropearl (65 μm), 0~8 part of hollow glass micropearl (50 μm),
0~6 part of hollow glass micropearl (40 μm), it is 20~28 parts of acrylic ester copolymer elastic emulsion, 20.15~0.3 parts of defoaming agent, antifreeze
1.0~2.5 parts of agent, 1.0~1.5 parts of coalescing agent, 0.2~0.4 part of Antisepticize and mildew preventive, 1.0~1.5 parts of thickener；The present invention
Reflective insulation outer wall building coating is to be compounded both to can guarantee painting according to a certain percentage using different size hollow glass micropearls
Layer surface is smooth, and solar reflectivity is higher, and contaminated resistance is preferable, also can guarantee the increase of gas volume fraction in coating, from
And greatly improve the heat preservation and insulation of coating.
But above-mentioned patent coating dispersibility is still poor, limits its application in Water-based thermal insulation coating.
Summary of the invention
The technology of its application in insulating moulding coating is limited for hollow glass micropearl dispersibility poor in coating
Problem, the present invention propose a kind of preparation method of building coating heat shielding additives.
A kind of preparation method of building coating heat shielding additives, which is characterized in that sequentially include the following steps:
A, 20-40 weight account polyethylene alcohol colloid, 3-10 parts by weight Emulsifier, 10-15 parts by weight sodium bicarbonate are added to
Ionized water mixing, is warming up to 45~50 DEG C, and 20-40 parts by weight hollow glass micropearl is added in whipping process, and stirring makes it sufficiently
Uniformly mixed mixed emulsion；
B, the butyl acrylate of 15-40 parts by weight acetic acid vinyl acetate, 7-10 parts by weight of acrylic acid and 2-5 parts by weight is made into forerunner
Liquid is added in mixed emulsion made from step a, and initiator is added, then heating and thermal insulation reaction is down to room temperature, adjusts pH value
It is 7, then is dried in vacuo to obtain coating hollow glass micropearl microcapsules；That is building coating heat shielding additives.
Mixing time is 20-50min in step a.
In step b, the initiator is azo-bis-isobutyrate hydrochloride, and dosage is the 0.5% of precursor liquid quality.
In step b, heating temperature is 70-90 DEG C.
In step b, reaction time 2h-4h.
Polyvinyl alcohol colloid, emulsifier and sodium bicarbonate are added to deionized water and mixed by the present invention, its purpose is to
Disperse the hollow glass micropearl being added uniformly, evenly dispersed mixed emulsion is made.After lotion is made, need first to heat up,
Hollow glass micropearl is added, uniform mixed emulsion is mixed them thoroughly.In order to mix lotion uniformly, the present invention can be adopted
It is stirred with mechanical agitator, mixing speed is selected as 800-1000 revs/min.
Preferably, the emulsifier is water-in-oil emulsifier, selects this disk -20, this disk -40, one in this disk -60
Kind.
Water-in-oil emulsifier of the present invention is mixed to form by oil, water and emulsifier.The form of system be water with
The form of droplet is scattered in oil.Water phase is interior phase or dispersed phase, and oil is foreign minister or decentralized medium.
Hollow glass micropearl is a kind of glass microballoon by special working process, and it is micro- compared with glass to be mainly characterized by density
Pearl is smaller, and thermal conductivity is worse.General granularity is 10-250 μm, and wall thickness is 1-2 μm;Hollow glass micropearl have compression strength it is high,
The features such as fusing point is high, resistivity is high, thermal conductivity coefficient and Thermal Contraction Coefficient are small has apparent mitigation weight and thermal insulation separation thermal effect
Fruit.
Of the invention is particularly advantageous in that: by the way that polyvinyl acetate forerunner's precursor emulsion is mixed with hollow glass micropearl,
Using polymerization to the processing of glass microballoon coating, coating glass microballoon surface adhesiveness is good, not easily to fall off, while improving hollow glass
Dispersion performance of the glass microballon in coating, dispersibility are obviously improved, and have preferably ageing-resistant performance, this not only technique letter
It is single, it is convenient for Industry Control, and improve the undesirable problem of hollow glass micropearl dispersion performance in insulating moulding coating.
The invention solves second technical problem be to provide a kind of building coating heat shielding additives.
A kind of building coating heat shielding additives, by the preparation method preparation of above-mentioned building coating heat shielding additives
At.
Compared with prior art, the invention has the following beneficial effects:
1, the building coating heat shielding additives that are prepared of the present invention can improve the reflectivity and weatherability of coating, enhance its every
Thermal effect has the advantages that environmental protection and energy saving.
2, it is simple to improve coating producing process for the building coating heat shielding additives that are prepared of the present invention, convenient for industry
Control, properties of product obtained are stablized.
3, dispersibility of the building coating heat shielding additives that the present invention is prepared in coating is excellent, at low cost, makes
It is long with the service life.
Specific embodiment
In the following, the present invention will be further described in detail by way of specific embodiments, but this should not be interpreted as to the present invention
Range be only limitted to example below.Without departing from the idea of the above method of the present invention, according to ordinary skill
The various replacements or change that knowledge and customary means are made, should be included in the scope of the present invention.
Embodiment 1
A kind of building coating heat shielding additives, preparation method are to sequentially include the following steps:
A, 20 weight account polyethylene alcohol colloids, 3 parts by weight water-in-oil emulsifier this disk -20,10 parts by weight sodium bicarbonates are added
Enter to deionized water and mix, be warming up to 45 DEG C, 20 parts by weight hollow glass micropearls are added in whipping process, stirs 20min, make it
It is sufficiently mixed uniform mixed emulsion；
B, the butyl acrylate of 15 parts by weight acetic acid vinyl acetates, 7 parts by weight of acrylic acid and 2 parts by weight is made into precursor liquid, be added
Into mixed emulsion made from step a, initiator azo-bis-isobutyrate hydrochloride is added, dosage is the 0.5% of precursor liquid quality,
It is heated to 70 DEG C of insulation reactions, then reaction time 2h is down to room temperature, adjusting pH value is 7, then is dried in vacuo to obtain coating hollow
Glass microballoon microcapsules；That is building coating heat shielding additives.
Embodiment 2
A kind of building coating heat shielding additives, preparation method are to sequentially include the following steps:
A, 40 weight account polyethylene alcohol colloids, 10 parts by weight water-in-oil emulsifier this disk -40,15 parts by weight sodium bicarbonates are added
Enter to deionized water and mix, be warming up to 50 DEG C, 40 parts by weight hollow glass micropearls are added in whipping process, stirs 50min, make it
It is sufficiently mixed uniform mixed emulsion；
B, the butyl acrylate of 40 parts by weight acetic acid vinyl acetates, 10 parts by weight of acrylic acid and 5 parts by weight is made into precursor liquid, be added
Into mixed emulsion made from step a, initiator azo-bis-isobutyrate hydrochloride is added, dosage is the 0.5% of precursor liquid quality,
It is heated to 80 DEG C of insulation reactions, then reaction time 3h is down to room temperature, adjusting pH value is 7, then is dried in vacuo to obtain coating hollow
Glass microballoon microcapsules；That is building coating heat shielding additives.
Embodiment 3
A kind of building coating heat shielding additives, preparation method are to sequentially include the following steps:
A, 25 weight account polyethylene alcohol colloids, 5 parts by weight water-in-oil emulsifier this disk -20,12 parts by weight sodium bicarbonates are added
Enter to deionized water and mix, be warming up to 46 DEG C, 25 parts by weight hollow glass micropearls are added in whipping process, stirs 25min, make it
It is sufficiently mixed uniform mixed emulsion；
B, the butyl acrylate of 20 parts by weight acetic acid vinyl acetates, 8 parts by weight of acrylic acid and 3 parts by weight is made into precursor liquid, be added
Into mixed emulsion made from step a, initiator azo-bis-isobutyrate hydrochloride is added, dosage is the 0.5% of precursor liquid quality,
It is heated to 85 DEG C of insulation reactions, then reaction time 4h is down to room temperature, adjusting pH value is 7, then is dried in vacuo to obtain coating hollow
Glass microballoon microcapsules；That is building coating heat shielding additives.
Embodiment 4
A kind of building coating heat shielding additives, preparation method are to sequentially include the following steps:
A, 30 weight account polyethylene alcohol colloids, 8 parts by weight water-in-oil emulsifier this disk -60,14 parts by weight sodium bicarbonates are added
Enter to deionized water and mix, be warming up to 48 DEG C, 32 parts by weight hollow glass micropearls are added in whipping process, stirs 40min, make it
It is sufficiently mixed uniform mixed emulsion；
B, the butyl acrylate of 30 parts by weight acetic acid vinyl acetates, 9 parts by weight of acrylic acid and 4 parts by weight is made into precursor liquid, be added
Into mixed emulsion made from step a, initiator azo-bis-isobutyrate hydrochloride is added, dosage is the 0.5% of precursor liquid quality,
It is heated to 90 DEG C of insulation reactions, then reaction time 4h is down to room temperature, adjusting pH value is 7, then is dried in vacuo to obtain coating hollow
Glass microballoon microcapsules；That is building coating heat shielding additives.
Embodiment 5
A kind of building coating heat shielding additives, preparation method are to sequentially include the following steps:
A, 30 weight account polyethylene alcohol colloids, 5 parts by weight water-in-oil emulsifier this disk -20,12 parts by weight sodium bicarbonates are added
Enter to deionized water and mix, be warming up to 48 DEG C, 30 parts by weight hollow glass micropearls are added in whipping process, stirs 30min, make it
It is sufficiently mixed uniform mixed emulsion；
B, the butyl acrylate of 30 parts by weight acetic acid vinyl acetates, 8.5 parts by weight of acrylic acid and 3.5 parts by weight is made into precursor liquid,
It is added in mixed emulsion made from step a, initiator azo-bis-isobutyrate hydrochloride is added, dosage is precursor liquid quality
0.5%, 90 DEG C of insulation reactions are heated to, then reaction time 2h is down to room temperature, adjusting pH value is 7, then is dried in vacuo and is wrapped
Film hollow glass micropearl microcapsules；That is building coating heat shielding additives.
Comparative example 1
A kind of building coating heat shielding additives, preparation method are to sequentially include the following steps:
A, 30 weight account polyethylene alcohol colloids, 12 parts by weight sodium bicarbonates are added to deionized water to mix, are warming up to 48 DEG C, stir
30 parts by weight hollow glass micropearls are added during mixing, stir 30min, mix them thoroughly uniform mixed emulsion；
B, the butyl acrylate of 30 parts by weight acetic acid vinyl acetates, 8.5 parts by weight of acrylic acid and 3.5 parts by weight is made into precursor liquid,
It is added in mixed emulsion made from step a, initiator azo-bis-isobutyrate hydrochloride is added, dosage is precursor liquid quality
0.5%, 90 DEG C of insulation reactions are heated to, then reaction time 2h is down to room temperature, adjusting pH value is 7, then is dried in vacuo and is built
Build coating heat shielding additives.
Emulsifier is not used in comparative example 1, fails to be formed good Water-In-Oil structure, therefore the coating for causing polymerization fails pair
Hollow glass micro-ball securely coats, the stealthy dispersion in coating.
Comparative example 2
Untreated hollow glass micro-ball and matrix coating (polyvinylidene fluoride resin coating) is equal with mass ratio 7:100 dispersion
It is even, direct coating.
Comparative example 3
Coating is carried out by blank assay of matrix coating polyvinylidene fluoride resin coating.
Above-described embodiment 1-5 and a kind of building coating heat shielding additives of 1 gained of comparative example and matrix coating (are gathered inclined two
Fluoroethylene resin coating) it is uniformly dispersed with mass ratio 7:100, direct coating；It is compared with the coating of comparative example 2-3, according to
Standard JG/T235-2008 carries out sample preparation test, and the results are shown in Table 1:
Table 1
| Number | Sun reflectivity | Hemispherical emissivity | The heat-insulated temperature difference (DEG C) |
| Embodiment 1 | 0.85 | 0.88 | 14 |
| Embodiment 2 | 0.90 | 0.90 | 15 |
| Embodiment 3 | 0.84 | 0.85 | 13 |
| Embodiment 4 | 0.86 | 0.89 | 15 |
| Embodiment 5 | 0.89 | 0.84 | 14 |
| Comparative example 1 | 0.81 | 0.72 | 10 |
| Comparative example 2 | 0.74 | 0.61 | 9 |
| Comparative example 3 | 0.45 | 0.47 | 5 |
Claims (7)
1. a kind of preparation method of building coating heat shielding additives, which is characterized in that sequentially include the following steps:
A, 20-40 weight account polyethylene alcohol colloid, 3-10 parts by weight Emulsifier, 10-15 parts by weight sodium bicarbonate are added to
Ionized water mixing, is warming up to 45~50 DEG C, and 20-40 parts by weight hollow glass micropearl is added in whipping process, and stirring makes it sufficiently
Uniformly mixed mixed emulsion；
B, the butyl acrylate of 15-40 parts by weight acetic acid vinyl acetate, 7-10 parts by weight of acrylic acid and 2-5 parts by weight is made into forerunner
Liquid is added in mixed emulsion made from step a, and initiator is added, then heating and thermal insulation reaction is down to room temperature, adjusts pH value
It is 7, then is dried in vacuo to obtain coating hollow glass micropearl microcapsules；That is building coating heat shielding additives.
2. a kind of preparation method of building coating heat shielding additives according to claim 1, which is characterized in that the cream
Agent is one of this disk -20, this disk -40, this disk -60.
3. a kind of preparation method of building coating heat shielding additives according to claim 1, which is characterized in that step a
Middle mixing time is 20-50min.
4. a kind of preparation method of building coating heat shielding additives according to claim 1, which is characterized in that step b
In, the initiator is azo-bis-isobutyrate hydrochloride, and dosage is the 0.5% of precursor liquid quality.
5. a kind of preparation method of building coating heat shielding additives according to claim 1, which is characterized in that step b
In, heating temperature is 70-90 DEG C.
6. a kind of preparation method of building coating heat shielding additives according to claim 1, which is characterized in that step b
In, reaction time 2h-4h.
7. a kind of building coating heat shielding additives, which is characterized in that used by building coating described in any one of claims 1-6
The preparation method of heat shielding additives is prepared.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112322100A (en) * | 2020-11-23 | 2021-02-05 | 安徽嘉年华漆业有限公司 | Heat-insulating coating additive and production method thereof |
| CN112608649A (en) * | 2020-12-11 | 2021-04-06 | 南通勘察设计有限公司 | Anti-falling waterproof coating for building exterior wall and preparation method thereof |
| CN118931280A (en) * | 2024-08-22 | 2024-11-12 | 四川大学 | A reflective heat-insulating coating and its preparation method and application |
-
2018
- 2018-08-23 CN CN201810965564.7A patent/CN109161246A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112322100A (en) * | 2020-11-23 | 2021-02-05 | 安徽嘉年华漆业有限公司 | Heat-insulating coating additive and production method thereof |
| CN112608649A (en) * | 2020-12-11 | 2021-04-06 | 南通勘察设计有限公司 | Anti-falling waterproof coating for building exterior wall and preparation method thereof |
| CN118931280A (en) * | 2024-08-22 | 2024-11-12 | 四川大学 | A reflective heat-insulating coating and its preparation method and application |
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