CN107573788A - A kind of true mineral varnish coating of exterior wall - Google Patents
A kind of true mineral varnish coating of exterior wall Download PDFInfo
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- CN107573788A CN107573788A CN201710802832.9A CN201710802832A CN107573788A CN 107573788 A CN107573788 A CN 107573788A CN 201710802832 A CN201710802832 A CN 201710802832A CN 107573788 A CN107573788 A CN 107573788A
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- mineral varnish
- true mineral
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- exterior wall
- varnish coating
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- 229910052500 inorganic mineral Inorganic materials 0.000 title claims abstract description 56
- 239000011707 mineral Substances 0.000 title claims abstract description 56
- 239000002966 varnish Substances 0.000 title claims abstract description 56
- 238000000576 coating method Methods 0.000 title claims abstract description 46
- 239000011248 coating agent Substances 0.000 title claims abstract description 45
- 239000004576 sand Substances 0.000 claims abstract description 70
- 239000000203 mixture Substances 0.000 claims abstract description 46
- 239000000839 emulsion Substances 0.000 claims abstract description 41
- 229920001661 Chitosan Polymers 0.000 claims abstract description 22
- 239000002562 thickening agent Substances 0.000 claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000002270 dispersing agent Substances 0.000 claims abstract description 16
- 238000001694 spray drying Methods 0.000 claims abstract description 16
- 230000000844 anti-bacterial effect Effects 0.000 claims abstract description 15
- 239000003899 bactericide agent Substances 0.000 claims abstract description 15
- 239000003002 pH adjusting agent Substances 0.000 claims abstract description 14
- 239000007864 aqueous solution Substances 0.000 claims abstract description 13
- 239000013530 defoamer Substances 0.000 claims abstract description 10
- 239000004575 stone Substances 0.000 claims description 15
- -1 Polysiloxanes Polymers 0.000 claims description 9
- 229920001296 polysiloxane Polymers 0.000 claims description 7
- 229920001909 styrene-acrylic polymer Polymers 0.000 claims description 7
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 4
- CBTVGIZVANVGBH-UHFFFAOYSA-N aminomethyl propanol Chemical group CC(C)(N)CO CBTVGIZVANVGBH-UHFFFAOYSA-N 0.000 claims description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims 1
- 239000012752 auxiliary agent Substances 0.000 claims 1
- 125000002057 carboxymethyl group Chemical group [H]OC(=O)C([H])([H])[*] 0.000 claims 1
- 150000002148 esters Chemical class 0.000 claims 1
- 239000008367 deionised water Substances 0.000 abstract description 11
- 229910021641 deionized water Inorganic materials 0.000 abstract description 11
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 238000001035 drying Methods 0.000 abstract description 3
- 238000003756 stirring Methods 0.000 description 24
- 229920001223 polyethylene glycol Polymers 0.000 description 19
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 12
- 230000000694 effects Effects 0.000 description 9
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 7
- 239000001768 carboxy methyl cellulose Substances 0.000 description 7
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 7
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- 210000000481 breast Anatomy 0.000 description 5
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- 229910052710 silicon Inorganic materials 0.000 description 4
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- 238000003860 storage Methods 0.000 description 4
- 229920003002 synthetic resin Polymers 0.000 description 4
- 239000000057 synthetic resin Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
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- 239000003973 paint Substances 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
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- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000005253 cladding Methods 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- UHOVQNZJYSORNB-UHFFFAOYSA-N monobenzene Natural products C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 2
- 231100000252 nontoxic Toxicity 0.000 description 2
- 230000003000 nontoxic effect Effects 0.000 description 2
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- FFRBMBIXVSCUFS-UHFFFAOYSA-N 2,4-dinitro-1-naphthol Chemical compound C1=CC=C2C(O)=C([N+]([O-])=O)C=C([N+]([O-])=O)C2=C1 FFRBMBIXVSCUFS-UHFFFAOYSA-N 0.000 description 1
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- 229920001030 Polyethylene Glycol 4000 Polymers 0.000 description 1
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- 229920002594 Polyethylene Glycol 8000 Polymers 0.000 description 1
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- 239000010976 emerald Substances 0.000 description 1
- 229910052876 emerald Inorganic materials 0.000 description 1
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- LGZXYFMMLRYXLK-UHFFFAOYSA-N mercury(2+);sulfide Chemical compound [S-2].[Hg+2] LGZXYFMMLRYXLK-UHFFFAOYSA-N 0.000 description 1
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- UJMBCXLDXJUMFB-UHFFFAOYSA-K trisodium;5-oxo-1-(4-sulfonatophenyl)-4-[(4-sulfonatophenyl)diazenyl]-4h-pyrazole-3-carboxylate Chemical compound [Na+].[Na+].[Na+].[O-]C(=O)C1=NN(C=2C=CC(=CC=2)S([O-])(=O)=O)C(=O)C1N=NC1=CC=C(S([O-])(=O)=O)C=C1 UJMBCXLDXJUMFB-UHFFFAOYSA-K 0.000 description 1
Landscapes
- Paints Or Removers (AREA)
Abstract
The present invention relates to wall covering field, and in particular to includes following component according to the mass fraction with true mineral varnish coating, its composition to a kind of exterior wall：150~200 parts of 100 200 parts of emulsion, 300 400 parts of color sand, 7~15 parts of thickener, 0.5~1 part of pH adjusting agent, 8~15 parts of coalescents, 0.5~1 part of dispersant, 0.5~1 part of defoamer, 0.5~1 part of bactericide, 5 10 parts of hydrophober and deionized water, described color sand use after doing spray drying treatment with the aqueous solution of chitosan/PEG blends.The exterior wall of the present invention easily layering, film forming slow drying speed, while the dosage of color sand is greatly reduced in being formulated existing for true mineral varnish coating can effectively solve the problems, such as present true mineral varnish so that cost reduces, and is also beneficial to application of the natural colour sand in coating.
Description
Technical field
The present invention relates to wall covering field, and in particular to a kind of exterior wall with true mineral varnish coating.
Background technology
True mineral varnish is the coating that a kind of decorative effect exactly likes marble, granite, the main natural stone for using a variety of colors
Powder is formulated, the imitative stone effect applied to external wall.Lithotome is long in the applicating history of building decoration area, with
Its noble, natural, simple and unsophisticated, luxurious style firmly gets architect and user's favor, and high-end building external image is important
One of mark.
Building after true mineral varnish finishing, has natural real natural colour, gives graceful, harmonious, serious U.S.
Sense, it is suitable for the indoor and outdoor decoration of all kinds of buildings.Particularly decorated on curved-surface building thing, it is vivid, there is a kind of recurrence
Natural effect.True mineral varnish has fire prevention, waterproof, acid and alkali-resistance, anti-pollution.It is nontoxic, tasteless, bonding force is strong, it is will never fade wait spy
It point, can effectively prevent extraneous adverse circumstances from corroding building, extend the life-span of building.But as China is to natural resources
Protection and country environmental protection and energy saving policy, relevant laws and regulations it is more and more stricter so that the exploitation of lithotome, processing, transport into
This constantly rises, and this influences application of the lithotome in building decoration area to a certain extent.
Traditional true mineral varnish is mainly made up of high molecular polymer, natural color stone sand and related auxiliaries, hard after dry and hard solidification
Hard such as stone, it appears that as natural real stone.Some true mineral varnish coatings can all turn white, coating becomes thin after raining every time
Pine, and shone after rain stops through the sun one, coating recovers original color again, and reason is that the water resistance of coating is bad, absorbs
Moisture, it is also possible to be due to that high molecular polymer i.e. emulsion does not parch completely, without timely film forming, cause emulsion to meet water hair
In vain.The reason for but maximum, is traditional true mineral varnish due to no any filler, and covering power is relatively low, so the painting typically constructed
Cloth rate is relatively low, every square metre of at least 4-5 kilograms of spreading rate, wherein also certain loss, causes paint film to be not easy drying.And
Traditional true mineral varnish also has easily to be sunk to the bottom after the transport of long range, causes to reach the problems such as being not easy to construct behind building site.
The content of the invention
For disadvantages mentioned above and deficiency existing for true mineral varnish in the prior art, the present invention is intended to provide a kind of true stone of exterior wall
Coating is painted, the dosage of lithotome in true mineral varnish can be substantially reduced, and improves the adhesive force of true mineral varnish, and the true mineral varnish obtained is not
Easily layering, greatly prolongs storage period.
To realize the goal of the invention of the present invention, inventor provides following technical scheme：
A kind of true mineral varnish coating of exterior wall, it forms the following component included according to the mass fraction：Emulsion 100-200 parts,
Color sand 300-400 parts, 7~15 parts of thickener, 0.5~1 part of pH adjusting agent, 8~15 parts of coalescents, 0.5~1 part of dispersant,
150~200 parts of 0.5~1 part of defoamer, 0.5~1 part of bactericide, hydrophober 5-10 parts and deionized water, described color sand shell
The aqueous solution of glycan/PEG blends uses after doing spray drying treatment.
Constantly rise with the exploitation, processing, cost of transportation of lithotome, have impact on lithotome to a certain extent and exist
The application of building decoration area, but there is no doubt that true mineral varnish has irreplaceable status in exterior wall paint field, because
This effectively reduce in true mineral varnish natural colour sand dosage with rationally control true mineral varnish cost and overcome the existing such as layering of true mineral varnish,
The problems such as adhesive force is not firm enough, water resistance is the most important thing.Inventor, which studies, to be found, water-soluble with chitosan/PEG blends
Liquid spray drying treatment coloured silk sand, does cladding processing to color sand, color sand can be made preferably to be suspended in emulsion, so made
True mineral varnish coating be not easy to be layered, on the one hand greatly prolong the storage period of true mineral varnish, on the other hand also constructing operation become
Simply, and especially prominent is the color sand dosage reduction substantially with existing conventional formulation compared with for reaching same coating effect
Half, and true mineral varnish coating under the formula is easy to fall off coated in not allowing after on exterior wall.Although chitosan/PEG blends
It is more hydrophilic compared with for chitosan monomer, found in use, the addition in inventive formulation can't cause the water-fast of true mineral varnish
Property decline, while be aided with add proper proportion hydrophober can further improve water resistance.Matched in usual existing true mineral varnish
Composition prize sand be 600-700 parts, emulsion be 100-200 parts, after being pre-processed according to the present invention to color sand, it is possible to reduce at least
Four into color sand dosage.Compared with prior art formula, according under inventive formulation in the case of even color sand dosage reduction
The true mineral varnish made does not have substantial effect for final coating effect, can equally realize the imitative stone applied to external wall
Material effect.
Preferably, in the present invention, described color sand does spray drying treatment with the aqueous solution of chitosan/PEG blends,
Main technologic parameters include：The concentration of aqueous solution of chitosan/PEG blends is 35-50wt%, and chitosan/PEG blends add
Dosage is calculated as 5-15% by colored stone quality；Intake air temperature is 180-200 DEG C in spray drying treatment, air outlet temperature 80-
100℃.In the present invention, chitosan/PEG blends is prepared according to conventional method of the prior art, such as solution blended process, herein
Repeat no more.That PEG is selected is PEG4000, PEG6000 or PEG8000, chitosan using deacetylation >=90% first
The mass ratio of the two is 1 in shell element, commercially available prod, PEG and chitosan blend thing:1.
Preferably, in the present invention, the color sand is mixed according to specific needs by different-grain diameter, different colours natural colour sand
And obtain.The principal item of color sand has：China Dark, Snow Flower White, middle Huang, yellow fraction, evergreen, steel gray, gray jade, three spend, are light green, deep
It is green, light green, emerald, phoenix is green, apple green, Chinese red, pink, liver is red, capital is red, orange, Taihang is red, chicken blood is red, poppy
Deng natural colour sand.Color sand major product model has：10-20 mesh, 20-40 mesh, 40-80 mesh, 80-120 mesh.Of the invention and existing skill
The color sand facies ratio that art uses, it is a little that the present invention using PEG because done cladding processing to color sand, the present invention than more prominent
The color sand grains footpath even used is smaller, for example more than 100 mesh, is also not in the prior art because color sand grains footpath little Rong
Easily occur disperseing problem of non-uniform in preparation process.Such as prior art prize sand typical case composition include 10-20 mesh coloured silk sand 5%-
10%th, 20-40 mesh coloured silk sand 20%-34%, 40-80 mesh coloured silk sand 40%-60% and 80-120 mesh coloured silk sand 8-15%, it can be seen that
Come, the color sand dosage accounting of 80-120 mesh is smaller.And the present invention can be completely using color sand more than 80 mesh, in preparation process
Scattered uneven problem will not be produced, the true mineral varnish imitation stone effect for being prepared out is more true to nature, and hardness and water resistance are more preferably.
Preferably, in the present invention, described emulsion is the composition of silicone acrylic emulsion and styrene-acrylic emulsion, silicone acrylic emulsion and benzene
Acrylic emulsion is according to 6-8:4-2 is matched.Research finds that cost is suitable under this ratio, can also meet to damp degree, hardness and water resistance
Requirement.
Preferably, in the present invention, the quality of the emulsion and color sand is 1 than scope:1.5-4.The proportioning is advantageous to control
The hardness for making true mineral varnish was unlikely to soft, and film formation time is than very fast.
Preferably, in the present invention, the thickener is carboxymethyl cellulose, it is desirable to which viscosity is 3500~4000mPa.s
(20 DEG C of 1% aqueous solution, temperature).Another benefit after the color sand that the present invention adds is handled with PEG need not exactly add spy
Not highly viscous carboxymethyl cellulose, the carboxymethyl cellulose viscosity required in the prior art is commonly greater than 10000mPa.s.Order
People it is pleasantly surprised be that film forming rate of drying also accelerates.
Preferably, in the present invention, described coalescents use the coalescents of alcohol ester 12, commercially available prod.
Preferably, in the present invention, the pH adjusting agent used is AMP-95, and also known as multifunctional assistant AMP-95 is commercially available
Product.
Preferably, in the present invention, the dispersant used is coating dispersant Dispersant-5040, composition：Polycarboxylic acids
Sodium salt, the production of the Chemical Co., Ltd. of Weifang Shandong one.
Preferably, in the present invention, the defoamer used is defoamer SN-NXZ, Japanese Nuo Puke defoamers, commercially available production
Product.
Preferably, in the present invention, the bactericide used is anticorrosion with coat bactericide, principle active component BIT, chemistry
Entitled BIT, commercially available prod, such as the production of Shanghai Ou Mo chemical products Co., Ltd, model：
BIT10 anticorrosion with coat bactericide.
Preferably, in the present invention, the hydrophober is polysiloxanes powder hydrophober, such as SHP-50 polysiloxanes powder
Hydrophober, commercially available prod.
Another advantage of true mineral varnish is exactly that preparation technology is simple, and this is particularly important in big production.The present invention is come
Say, a kind of described exterior wall is with true mineral varnish coating, its preparation method：Deionized water, control stirring speed are added in dispersion tank
Degree adds thickener between 300~800r/min, stirs 5~8min, adds pH adjusting agent, continue to be dispersed with stirring 3~
5min, until thickener fully dissolves；Coalescents are added, 3~5min is stirred, adds dispersant, wait to stir
Afterwards, emulsion compositions are slowly added to, avoids producing bubble, after emulsion compositions feed, stirs 8~10min, add natural
Color sand stirring, is eventually adding hydrophober, defoamer and bactericide, is discharged after stirring, packed.
Compared with prior art, the beneficial effects of the invention are as follows：
1st, exterior wall of the invention easily are done existing for true mineral varnish coating can effectively solve present true mineral varnish by layering, film forming
Dry slow-footed problem, while the dosage of color sand is greatly reduced in being formulated so that cost reduces, and is also beneficial to natural colour sand and exists
Application in coating.
2nd, true mineral varnish of the invention is not easy to be layered, and on-site construction operations are easier, and storage period greatly prolongs.
3rd, present invention process is easy, is easy to industrialized production, has good application prospect.The present invention uses natural colour sand
The advanced spraying paint made, has the characteristics that nontoxic, tasteless, gloss is bright-coloured, tone is soft, third dimension is strong.
Embodiment
With reference to embodiment, present disclosure is further illustrated.It should be appreciated that the implementation of the present invention is not limited to
In the following examples, any formal accommodation and/or change made to the present invention fall within the scope of the present invention.
In the present invention, if not refering in particular to, all parts, percentage are unit of weight, and all equipment and raw material etc. are equal
It is commercially available or the industry is conventional.If without specializing, the method that embodiment uses is technology generally in the art.
Embodiment 1
A kind of true mineral varnish coating of exterior wall, it forms the following component included according to the mass fraction：100 parts of (silicon third of emulsion
Emulsion and styrene-acrylic emulsion are according to 6:4 proportioning), 300 parts of color sand, 7 parts of thickener carboxymethyl cellulose (viscosity 3500mPa.s),
0.5 part of pH adjusting agent AMP-95,8 parts of 12 coalescents of alcohol ester, 0.5 part of coating dispersant Dispersant-5040, defoaming
0.5 part of agent SN-NXZ, model BIT10 5 parts of 0.5 part of anticorrosion with coat bactericide, hydrophober and 150~200 parts of deionized water.
Described exterior wall is prepared as follows with true mineral varnish coating：
(1) color sand pretreatment
Color sand composition is according to mass percent meter：20% and 80-120 of Huang in 80-120 mesh Snow Flower White 60%, 80-120 mesh
Mesh yellow fraction 10%, 120-180 mesh Yellow Tiger Skin 10%.
Above-mentioned color sand is done into spray drying treatment with the aqueous solution for chitosan/PEG blends that concentration is 35%, mainly
Technological parameter includes：The dosage of chitosan/PEG blends is calculated as 8% by colored stone quality；Intake air temperature in spray drying treatment
For 180-200 DEG C, air outlet temperature is 80-100 DEG C.
(2) deionized water is added in dispersion tank, control mixing speed adds thickener between 300~800r/min,
5~8min is stirred, pH adjusting agent is added, continues to be dispersed with stirring 3~5min, until thickener fully dissolves；Add coalescents,
3~5min is stirred, dispersant is added, after stirring, is slowly added to emulsion compositions, avoids producing bubble, breast
After liquid composition feeds, 8~10min is stirred, pretreated natural colour sand stirring is added, is eventually adding hydrophober, disappears
Infusion and bactericide, discharge, pack after stirring.
The batch of repeat samples 3 is taken to be detected.Detection is with reference to JG/T 24-2000《Synthetic resin emulsion sand wall-like building applies
Material》W types.
Embodiment 2
A kind of true mineral varnish coating of exterior wall, it forms the following component included according to the mass fraction：200 parts of (silicon third of emulsion
Emulsion and styrene-acrylic emulsion are according to 8:2 proportioning), 400 parts of color sand, 15 parts of thickener carboxymethyl cellulose (viscosity 4000mPa.s),
1 part of pH adjusting agent AMP-95,15 parts of 12 coalescents of alcohol ester, 1 part of coating dispersant Dispersant-5040, defoamer
1 part of SN-NXZ, model BIT10 10 parts of 1 part of anticorrosion with coat bactericide, hydrophober and 200 parts of deionized water.
Described exterior wall is prepared as follows with true mineral varnish coating：
(1) color sand pretreatment
Color sand composition is according to mass percent meter：25% and 80-120 of Huang in 80-120 mesh Snow Flower White 60%, 80-120 mesh
Mesh yellow fraction 10%, 80-120 mesh Song Xiang Yellow 5%.
Above-mentioned color sand is done into spray drying treatment with the aqueous solution for chitosan/PEG blends that concentration is 50%, mainly
Technological parameter includes：The addition of chitosan/PEG blends is calculated as 15% by colored stone quality；Air inlet in spray drying treatment
Temperature is 180-200 DEG C, and air outlet temperature is 80-100 DEG C.
(2) deionized water is added in dispersion tank, control mixing speed adds thickener between 300~800r/min,
5~8min is stirred, pH adjusting agent is added, continues to be dispersed with stirring 3~5min, until thickener fully dissolves；Add coalescents,
3~5min is stirred, dispersant is added, after stirring, is slowly added to emulsion compositions, avoids producing bubble, breast
After liquid composition feeds, 8~10min is stirred, pretreated natural colour sand stirring is added, is eventually adding hydrophober, disappears
Infusion and bactericide, discharge, pack after stirring.
The batch of repeat samples 3 is taken to be detected.Detection is with reference to JG/T 24-2000《Synthetic resin emulsion sand wall-like building applies
Material》W types.
Embodiment 3
A kind of true mineral varnish coating of exterior wall, it forms the following component included according to the mass fraction：200 parts of (silicon third of emulsion
Emulsion and styrene-acrylic emulsion are according to 7:3 proportioning), 300 parts of color sand, 10 parts of thickener carboxymethyl cellulose (viscosity 4000mPa.s),
0.8 part of pH adjusting agent AMP-95,12 parts of 12 coalescents of alcohol ester, 1 part of coating dispersant Dispersant-5040, defoaming
1 part of agent SN-NXZ, BIT10 8 parts of 1 part of anticorrosion with coat bactericide, hydrophober and 180 parts of deionized water.
Described exterior wall is prepared as follows with true mineral varnish coating：
(1) color sand pretreatment
Color sand composition is according to mass percent meter：The mesh breast of Huang 10% and 200 in 80-120 mesh Snow Flower White 60%, 80-120 mesh
Huang 30%.
Above-mentioned color sand is done into spray drying treatment with the aqueous solution for chitosan/PEG blends that concentration is 45%, mainly
Technological parameter includes：The addition of chitosan/PEG blends is calculated as 5% by colored stone quality；Air inlet temperature in spray drying treatment
Spend for 180-200 DEG C, air outlet temperature is 80-100 DEG C.
(2) deionized water is added in dispersion tank, control mixing speed adds thickener between 300~800r/min,
5~8min is stirred, pH adjusting agent is added, continues to be dispersed with stirring 3~5min, until thickener fully dissolves；Add coalescents,
3~5min is stirred, dispersant is added, after stirring, is slowly added to emulsion compositions, avoids producing bubble, breast
After liquid composition feeds, 8~10min is stirred, pretreated natural colour sand stirring is added, is eventually adding hydrophober, disappears
Infusion and bactericide, discharge, pack after stirring.
The batch of repeat samples 3 is taken to be detected.Detection is with reference to JG/T 24-2000《Synthetic resin emulsion sand wall-like building applies
Material》W types.
Embodiment 4
A kind of true mineral varnish coating of exterior wall, it forms the following component included according to the mass fraction：100 parts of (silicon third of emulsion
Emulsion and styrene-acrylic emulsion are according to 8:2 proportioning), 400 parts of color sand, 15 parts of thickener carboxymethyl cellulose (viscosity 4000mPa.s),
1 part of pH adjusting agent AMP-95,15 parts of 12 coalescents of alcohol ester, 1 part of coating dispersant Dispersant-5040, defoamer
1 part of SN-NXZ, model BIT10 10 parts of 1 part of anticorrosion with coat bactericide, hydrophober and 200 parts of deionized water.
Described exterior wall is prepared as follows with true mineral varnish coating：
(1) color sand pretreatment
Color sand composition is according to mass percent meter：15% and 80-120 of Huang in 80-120 mesh Snow Flower White 60%, 80-120 mesh
Mesh yellow fraction 15%, 200 mesh golden yellow 10%.
Above-mentioned color sand is done into spray drying treatment with the aqueous solution for chitosan/PEG blends that concentration is 35%, mainly
Technological parameter includes：The addition of chitosan/PEG blends is calculated as 10% by colored stone quality；Air inlet in spray drying treatment
Temperature is 180-200 DEG C, and air outlet temperature is 80-100 DEG C.
(2) deionized water is added in dispersion tank, control mixing speed adds thickener between 300~800r/min,
5~8min is stirred, pH adjusting agent is added, continues to be dispersed with stirring 3~5min, until thickener fully dissolves；Add coalescents,
3~5min is stirred, dispersant is added, after stirring, is slowly added to emulsion compositions, avoids producing bubble, breast
After liquid composition feeds, 8~10min is stirred, pretreated natural colour sand stirring is added, is eventually adding hydrophober, disappears
Infusion and bactericide, discharge, pack after stirring.
The batch of repeat samples 3 is taken to be detected.Detection is with reference to JG/T 24-2000《Synthetic resin emulsion sand wall-like building applies
Material》W types.
Exterior wall is as shown in the table with true four scheme products obtained therefrom integrated testability results of mineral varnish coating：
Industrial applicibility
Compared with prior art formula, in inventive formulation people from day coloured silk sand dosage reduce at least more than four one-tenth, no matter from
It is all rare that cost, which is still developed for environmental angle,.The true mineral varnish of the present invention is not easy to be layered, and storage period greatly prolongs, scene
Constructing operation is easier.Natural colour sand in the present invention can use less 100 mesh of particle diameter and above model coloured silk sand completely,
And do not produce and be difficult to disperse, stir the problem of uneven.Compared with prior art, with more preferably gloss color, third dimension more
The features such as strong, also more preferably, imitation stone effect is more preferable for water resistance.
Claims (10)
1. the true mineral varnish coating of a kind of exterior wall, it is characterised in that described exterior wall includes pressing mass parts with the composition of true mineral varnish coating
The following component of number meter：Emulsion 100-200 parts, color sand 300-400 parts, 7~15 parts of thickener, 0.5~1 part of pH adjusting agent, into
8~15 parts of film auxiliary agent, 0.5~1 part of dispersant, 0.5~1 part of defoamer, 0.5~1 part of bactericide, hydrophober 5-10 parts and go from
Sub- 150~200 parts of water, described color sand use after doing spray drying treatment with the aqueous solution of chitosan/PEG blends.
A kind of 2. true mineral varnish coating of exterior wall as claimed in claim 1, it is characterised in that described color sand chitosan/PEG
The aqueous solution of blend does spray drying treatment, and main technologic parameters include：The concentration of aqueous solution of chitosan/PEG blends is
35-50wt%, the addition of chitosan/PEG blends are calculated as 5-15% by colored stone quality；Air inlet temperature in spray drying treatment
Spend for 180-200 DEG C, air outlet temperature is 80-100 DEG C.
A kind of 3. true mineral varnish coating of exterior wall as claimed in claim 1, it is characterised in that described emulsion be silicone acrylic emulsion with
The composition of styrene-acrylic emulsion, silicone acrylic emulsion and styrene-acrylic emulsion are according to 6-8:4-2 is matched.
4. the true mineral varnish coating of a kind of exterior wall according to claim 1, it is characterised in that the emulsion and the quality of color sand
It is 1 than scope:1.5-4.
5. the true mineral varnish coating of a kind of exterior wall according to claim 1, it is characterised in that the thickener is that carboxymethyl is fine
Dimension element, it is desirable to which viscosity is 3500~4000mPa.s (20 DEG C of 1% aqueous solution, temperature).
6. the true mineral varnish coating of a kind of exterior wall according to claim 1, it is characterised in that described coalescents use alcohol
The coalescents of ester 12.
7. the true mineral varnish coating of a kind of exterior wall according to claim 1, it is characterised in that described pH adjusting agent is AMP-
95。
A kind of 8. true mineral varnish coating of exterior wall according to claim 1, it is characterised in that the described dispersant used for
Coating dispersant Dispersant-5040.
A kind of 9. true mineral varnish coating of exterior wall according to claim 1, it is characterised in that the described defoamer used for
Defoamer SN-NXZ.
10. the true mineral varnish coating of a kind of exterior wall according to claim 1, it is characterised in that the described hydrophober is
Polysiloxanes powder hydrophober.
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| CN201710802832.9A CN107573788A (en) | 2017-09-08 | 2017-09-08 | A kind of true mineral varnish coating of exterior wall |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710802832.9A CN107573788A (en) | 2017-09-08 | 2017-09-08 | A kind of true mineral varnish coating of exterior wall |
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| CN201710802832.9A Pending CN107573788A (en) | 2017-09-08 | 2017-09-08 | A kind of true mineral varnish coating of exterior wall |
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| CN109575722A (en) * | 2018-12-19 | 2019-04-05 | 南京红枫环保材料有限公司 | A kind of energy-saving ring fidelity stone-type composite dope and preparation method thereof |
| CN109722914A (en) * | 2018-12-21 | 2019-05-07 | 亚士创能新材料(滁州)有限公司 | A kind of imitative stone dry type coating flexible sheet material and preparation method thereof |
| CN110681455A (en) * | 2019-10-09 | 2020-01-14 | 程莹 | Exterior wall stone-like paint coating process system, process method and formula thereof |
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| CN109722914A (en) * | 2018-12-21 | 2019-05-07 | 亚士创能新材料(滁州)有限公司 | A kind of imitative stone dry type coating flexible sheet material and preparation method thereof |
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| CN110681455A (en) * | 2019-10-09 | 2020-01-14 | 程莹 | Exterior wall stone-like paint coating process system, process method and formula thereof |
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