A kind of reflective insulation multicolor finish and preparation method thereof
Technical field
The present invention relates to a kind of exterior coating, especially a kind of reflective insulation multicolor finish and preparation method thereof.
Background technology
Exterior wall stone-like coating mainly has true mineral varnish coating and multicolor finish at present, and multicolor finish is imitated with its distinctive decorative pattern
True effect is the most true to nature.True mineral varnish is formed by natural colour sand allotment, and natural color placer is the most exhausted, and the prospect of true mineral varnish may
Melancholy.Multicolor finish, based on synthetic emulsion, does not relies on color sand, has sustainability, will be the pillar of following stone-like coating
Property product.
Reflective heat-insulation paint is a kind of important technology that external wall reduces energy consumption, and general reflective heat-insulation paint is due to color
Color single, ornamental poor, in civil engineering, application is the strongest.Reflective insulation technology is combined with multicolor finish, is to improve
Building external wall energy-saving and an ornamental important technology are broken through.
Chinese invention patent application CN 104151979 A discloses a kind of water-water reflective insulation multicolor finish, by adding
Adding 2 ~ the reflective insulation powder of 30% gross weight realizes reflective insulation effect, and reflective insulation powder is rutile titanium dioxide powder body,
Expensive, it is unfavorable for a large amount of uses of product.
Chinese invention patent application CN 104804601 A discloses a kind of high-performance heat-insulation and heat-preservation multicolor finish, in dispersion
Basic colored paint adds the cenosphere of gross weight 10-15% mutually, makes color some granule and have reflective insulation effect, and coloured silk puts granule
The coverage rate on surface is only 30%-80%, is not enough to cover whole metope, cause reflective insulation effect to decline, affect product
Energy.
Summary of the invention
Problem to be solved by this invention is the deficiency overcoming prior art to exist, it is provided that a kind of reflective insulation multicolor finish
And preparation method thereof.
Multicolor finish of the present invention can carry out reflective insulation to sunlight, thus reaches to save energy consumption of air conditioning system in buildings
Function.Similar reflective insulation liquid granite polychrome finish only have the color some granule that dispersion phase base paint makes have reflection every
Hot merit energy, and color some granule is only 30%-80% to the coverage rate on surface, causes reflective insulation effect to decline.The present invention contrasts same
The one of class reflective insulation multicolor finish is big, and strategic structural point is: initiative adding in continuous phase varnish has reflective insulation effect
The glass microballoon of fruit, makes whole polychrome finish all have reflective insulation function, thus improves energy-saving effect.
Tests prove that, in dispersion phase base paint, when the addition of hollow glass micro-ball reaches 8%, gained coating begins with
More significantly reflective insulation effect, along with addition rises reflective insulation effect promoting, when dosage reaches 15% or more, instead
Penetrate effect of heat insulation lifting trend to start to slow down.Integrated cost factor and reflective insulation effect, hollow glass micro-ball optimum addition
At 8%-15%.
The present invention uses deionized water rather than general industrial tap water or subsoil water, described dispersion phase base paint,
In protection colloidal sol and continuous phase varnish deionized water be through the specialty water that processed of equipment of De-ionized Water.Protecting colloid salt
Being the mixture with lithium magnesium silicate as main component, lithium magnesium silicate is swelling but will not dissolve in water, water and during gradually
Peel off the charged thin slice of slabbing, lamella aspect enrichment negative charge, the end face enrichment positive charge of lamella, in water disperse water and
After, gradually forming " card room " structure, i.e. lamella aspect is connected with end face.Layered electronic can be with the hydroxyl second in dispersion phase base paint
Functional groups on base cellulose, forms the protecting film of one layer of water resistant, makes the dispersion phase base paint colour TV granule of shades of colour
Will not mutual colour mixture.Rich in multivalent ions such as the divalent calcium ions of positively charged, divalent magnesium ions in tap water or subsoil water, band
The multivalent ion of positive electricity can adsorb the protecting colloid salt thin slice with negative electricity, destroys " card room " structure and above-mentioned water resistant protecting film.
Therefore, the present invention uses the deionized water of the multivalent ion without positively charged.
What the present invention was initiative adds reflective insulation material, the most perfect multicolor finish in multicolor finish continuous phase
Reflective insulation performance.Tests prove that, when the dosage of continuous phase hollow core glass microsphere reaches 3%, to coating reflective insulation
Can there is more apparent lifting.Along with the increase of hollow glass micro-ball dosage, the reflective insulation performance of coating promotes the most therewith.But it is hollow
The lifting of glass microsphere dosage also brings following several respects counter productive: a simultaneously, affects coating transparency, has influence on final dress
Decorations effect;B, make dope viscosity too high, affect application property;C, hollow glass micro-ball proportion less than water, easily float, dosage mistake
It is unstable that height is easily caused system, and microsphere floats, agglomerate caking;The raising of d, hollow glass micro-ball will result directly in coating PVC and improves,
Too high PVC will cause strength of coating, weatherability to decline.E, cost increase.Comprehensive above pros and cons, tests prove that, continuous phase
The dosage of hollow core glass microsphere is optimum addition between 3%-5%.Easily float for above-mentioned hollow glass micro-ball, agglomerate is tied
The problem of block, the present invention is selected alkali swelling type thickening agent and hydroxyethyl cellulose, as the thickening agent of coating system, solve
The problem of anti-settling anti-floating.
Concrete scheme is as follows:
A kind of reflective insulation multicolor finish, including the protection colloidal sol that weight ratio is 10% ~ 30%, weight ratio be 30 ~ 50% colour divide
Dephasing base paint, and the continuous phase varnish that weight ratio is 20% ~ 50%, in described color dispersion phase base paint and continuous phase varnish
All contain glass microballoon.
Further, described protection colloidal sol is made up of following components by weight percent:
Deionized water 88% ~ 95%;
Protecting colloid salt 5 ~ 12%;
Optional, the described dispersion phase base paint that color dispersion phase base paint is 95 ~ 100% weight and the mill base of 0 ~ 5% weight
Mixing, described dispersion phase base paint is made up of following components by weight percent:
Deionized water 5% ~ 30%;
Hydroxyethyl cellulose 0.5 ~ 2%;
PH adjusting agent 0.1 ~ 0.3%;
Dispersion moisture agent 0.3 ~ 0.8%;
Defoamer 0.1 ~ 0.2%;
Infrared external reflection titanium dioxide 3 ~ 10%;
Kaolin 3 ~ 10%;
Coalescents 3 ~ 5%;
Antifreezing agent 1 ~ 3%;
Protection colloidal sol 3 ~ 10%;
Glass microballoon 8 ~ 15%;
Filming emulsion 30 ~ 40%;
Preservative 0.2 ~ 0.5%;
Optional, described continuous phase varnish is made up of following components by weight percent:
Deionized water 20 ~ 30%;
Defoamer 0.1 ~ 0.5%;
Coalescents 3 ~ 8%;
Antifreezing agent 1 ~ 3%;
Film forming matter 50% ~ 65%;
Glass microballoon 3 ~ 5%;
Preservative 0.2 ~ 0.5%;
Thickening agent 2 ~ 8%;
PH adjusting agent 0.1 ~ 0.3%.
Further, the hydroxyethyl ether cellulose of described dispersion phase base paint is: Akzo Nobel EBS351FQ,
One or more in EBS481FQ, EBS451FQ, EHM500 or sub-assorted blue HHBR250, HBR250,10k;
Optional, the pH adjusting agent of described dispersion phase base paint and continuous phase varnish is: 2-amino-2 methyl isophthalic acids-propanol, ammonia
Or the one or more of which of N, N-dimethylethanolamine;
Optional, the wetting dispersing agent of described dispersion phase base paint is: ammonium salt class or potassium salt class wetting dispersing agent.
Further, the defoamer of described dispersion phase base paint and continuous phase varnish is: mineral oil defoaming agent or organic
One or both in silicon class defoamer;
Optional, the infrared external reflection titanium dioxide of described dispersion phase base paint is Rutile type titanium dioxide;
Optional, the kaolinic particle diameter of described dispersion phase base paint is 2000 mesh-4000 mesh;
Optional, the coalescents of described dispersion phase base paint and continuous phase varnish is: Yi Shiman TEXANOL or Lauryl Alcohol ester
In one or both.
Further, the antifreezing agent of described dispersion phase base paint and continuous phase varnish is: propylene glycol, Polyethylene Glycol, poly-third
One or more in glycol, ethylene glycol;
Optional, the protecting colloid salt of described dispersion phase base paint and protection colloidal sol is: the LAPONITE-S of Bi Ke chemical company
482 or LAPONITE-RDS or LAPONIE-RD;
Optional, one or both in VS5500, S15 that glass microballoon is 3M company of described dispersion phase base paint mix;
Optional, the filming emulsion of described dispersion phase base paint is: in pure acrylic latex and fluorine-silicon modified acrylic emulsion
Plant or two kinds of mixing.
Further, the preservative of described dispersion phase base paint and continuous phase varnish is: 2-methyl-4-isothiazoline-2-
At least one in methyl-4-isothiazoline-3-ketone, 5-chloro-2-methyl-4 isothiazoline-3-ketone, formaldehyde;
Optional, the mill base of described color dispersion phase base paint is: at least one during iron oxide red, iron oxide yellow, cobalt blue, copper are black.
Further, the thickening agent of described continuous phase varnish is: polyurethane thickener, the one of alkali swollen thickener or two
Plant mixing;
Optional, the film forming matter of described continuous phase varnish is: pure acrylic latex, fluorine-silicon modified acrylic emulsion, aqueous polyurethane
At least one in dispersion.
A kind of method preparing reflective insulation multicolor finish, comprises the following steps:
Preparation protection colloidal sol: add protecting colloid salt and deionized water in dispersion machine, stirs and dissolves to protecting colloid salt, obtain
Protection colloidal sol, takes out stand-by;
Prepare color dispersion phase base paint: in dispersion machine, add hydroxyethyl cellulose and deionized water, stir to ethoxy fine
Dimension element dissolves, and is sequentially added into pH adjusting agent, dispersion moisture agent, defoamer afterwards, after stirring, adds infrared external reflection titanium white
Powder, Kaolin, be sequentially added into coalescents, antifreezing agent, protecting colloid salt, glass microballoon, film forming matter and anticorrosion after stirring
Agent, after being dispersed to uniformly, adds mill base, and is uniformly dispersed, obtain color dispersion phase base paint;
Preparation continuous phase varnish: under dispersion machine dispersion condition, is sequentially added into deionized water, defoamer, coalescents, antifreeze
Agent, sequentially adds film forming matter, hollow glass micro-ball, preservative, thickening agent, PH regulator, the slowest after being uniformly dispersed
Add thickening agent and PH regulator, regulate rotating speed, keep forming whirlpool and not exposing dispersion impeller, be dispersed to uniformly, obtain continuously
Phase varnish;
Prepare finished product: mixed, with colorful Special vacuum screen cloth pelletize with protection colloidal sol by the color dispersion phase base paint prepared
Machine pelletize, after obtaining color some granule, adds continuous phase varnish in coloured silk point granule, stirs and i.e. obtain the many color coatings of reflective insulation
Material finished product.
Beneficial effect: the present invention is based on synthetic emulsion, it is not necessary to rely on and add natural colour sand, i.e. can obtain imitative stone effect
Really, there is recyclability;The multicolor finish that preparation method of the present invention is made, adds whole polychrome finish in continuous phase
All have reflective insulation function, its good heat-insulation effect, improve energy-saving effect.
Detailed description of the invention
Below in conjunction with embodiment, technical solution of the present invention is further elaborated.Unreceipted concrete technology or bar in embodiment
Part person, according to the technology described by the document in this area or condition or is carried out according to product description.Agents useful for same or instrument
Device unreceipted production firm person, be can by city available from conventional products.
Embodiment 1 prepares reflective insulation multicolor finish
The present embodiment is made up of the component of following ratio, is all weight ratio, protection colloidal sol: dispersion phase base paint: continuous phase varnish=
30:35:50, wherein,
The each components by weight of dispersion phase base paint forms:
Deionized water 21.4%
Hydroxyethyl cellulose 0.9%
PH regulator 0.1%
Dispersion moisture agent 0.3%
Defoamer 0.1%
Infrared external reflection titanium dioxide 8%
Kaolin 5%
Coalescents 3%
Antifreezing agent 3%
Protecting colloid salt 8%
Glass microballoon 15%
Filming emulsion 35%
Preservative 0.2%
Protection colloidal sol each components by weight composition:
Deionized water 95%
Protecting colloid salt 5%
Described continuous phase varnish is made up of following components by weight percent:
Deionized water 21.4%
Defoamer 1%
Coalescents 4%
Antifreezing agent 3%
Film forming matter 65%
Glass microballoon 1%
Preservative 0.2%
Thickening agent 5%
PH adjusting agent 0.3%
Preparation method is as follows:
Preparation protection colloidal sol: add protecting colloid salt and deionized water in dispersion machine, stirs and dissolves to protecting colloid salt, obtain
Protection colloidal sol, takes out stand-by.
Prepare color dispersion phase base paint: adding hydroxyethyl cellulose and deionized water in dispersion machine, stirring is to hydroxyl second
Base cellulose dissolution, is sequentially added into pH adjusting agent, dispersion moisture agent, defoamer afterwards, after stirring, adds infrared external reflection
Titanium dioxide, Kaolin, be sequentially added into after stirring coalescents, antifreezing agent, protecting colloid salt, glass microballoon, film forming matter and
Preservative, after being dispersed to uniformly, according to required color effect, adds aqueous color paste, and is uniformly dispersed, obtain color dispersion phase base
Plinth paint.
Preparation continuous phase varnish: under dispersion machine low speed (200-400r/min) dispersion condition, be sequentially added into deionized water,
Defoamer, coalescents, antifreezing agent, properly increase rotating speed and be dispersed to surface without oil slick, sequentially add film forming matter, hollow glass
Microsphere, preservative, thickening agent, PH regulator.Regulation rotating speed, keeps forming whirlpool and not exposing dispersion impeller, disperses 15-30min,
It is slowly added to thickening agent and PH regulator the most successively, regulates rotating speed, keep forming whirlpool and not exposing dispersion impeller, be dispersed to all
Even, obtain continuous phase varnish.
The preparation of finished product: the color dispersion phase base paint prepared is mixed with protection colloidal sol, sieves with colorful Special vacuum
Net granulator granulation, after obtaining color some granule, adds continuous phase varnish in coloured silk point granule, stirs and i.e. obtain reflective insulation
Multicolor finish finished product.
Construction method: with the 3mm colorful spray gun special of bore water-water, regulate proper pressure, on required base material, spraying is i.e.
Can.
Embodiment 2 prepares reflective insulation multicolor finish
The present embodiment is made up of the component of following ratio, is all weight ratio, protection colloidal sol: dispersion phase base paint: continuous phase varnish=
20:50:50。
The each components by weight of dispersion phase base paint forms:
Deionized water 30%
Hydroxyethyl cellulose 0.7%
PH regulator 0.3%
Dispersion moisture agent 0.6%
Defoamer 0.2%
Infrared external reflection titanium dioxide 3%
Kaolin 3%
Coalescents 5%
Antifreezing agent 3%
Protecting colloid salt 8%
Glass microballoon 8%
Filming emulsion 38%
Preservative 0.2%
Protection colloidal sol each components by weight composition:
Deionized water 88%
Protecting colloid salt 12%
Described continuous phase varnish is made up of following components by weight percent:
Deionized water 26.2%
Defoamer 3%
Coalescents 3%
Antifreezing agent 1%
Film forming matter 62%
Glass microballoon 5%
Preservative 0.2%
Thickening agent 2%
PH regulator 0.3%
Preparation method is as follows:
Preparation protection colloidal sol: add protecting colloid salt and deionized water in dispersion machine, stirs and dissolves to protecting colloid salt, obtain
Protection colloidal sol, takes out stand-by.
Prepare color dispersion phase base paint: adding hydroxyethyl cellulose and deionized water in dispersion machine, stirring is to hydroxyl second
Base cellulose dissolution, is sequentially added into pH adjusting agent, dispersion moisture agent, defoamer afterwards, after stirring, adds infrared external reflection
Titanium dioxide, Kaolin, be sequentially added into after stirring coalescents, antifreezing agent, protecting colloid salt, glass microballoon, film forming matter and
Preservative, after being dispersed to uniformly, according to required color effect, adds aqueous color paste, and is uniformly dispersed, obtain color dispersion phase base
Plinth paint.
Preparation continuous phase varnish: under dispersant low speed (200-400r/min) dispersion condition, be sequentially added into deionized water,
Defoamer, coalescents, antifreezing agent, properly increase rotating speed and be dispersed to surface without oil slick, sequentially add film forming matter, hollow glass
Microsphere, preservative, thickening agent, PH regulator.Regulation rotating speed, keeps forming whirlpool and not exposing dispersion impeller, disperses 15-30min,
It is slowly added to thickening agent and PH regulator the most successively, regulates rotating speed, keep forming whirlpool and not exposing dispersion impeller, be dispersed to all
Even, obtain continuous phase varnish.
The preparation of finished product: the color dispersion phase base paint prepared is mixed with protection colloidal sol, sieves with colorful Special vacuum
Net granulator granulation, after obtaining color some granule, adds continuous phase varnish in coloured silk point granule, stirs and i.e. obtain reflective insulation
Multicolor finish finished product.
Construction method: with the 3mm colorful spray gun special of bore water-water, regulate proper pressure, on required base material, spraying is i.e.
Can.
Embodiment 3 performance detects
Above-described embodiment 1 and embodiment 2, spraying back plate face coloured silk point granule random distribution, in more uniform state.The coloured silk of shades of colour
Point granule decorative board, makes plate face present natural granite superficial makings.Color according to different color some granules and proportioning, can
To copy out different lithotomes.Due to containing hollow glass micro-ball so that coating surface presents sand feeling, make paint film more
Texture close to lithotome.
According to " HGT 4343-2012 aqueous colorful building coating " and " JG/T 235-2008 architectural reflective heat-insulation paint "
Standard, embodiment 1 and embodiment 2 are detected, result is as follows:
Table 1 performance test results table
By table 1 it can be seen that reflective insulation multicolor finish good stability prepared by the present invention, weather resisteant is strong, function admirable.
According to " JG/T 235-2008 architectural reflective heat-insulation paint ", the reflection indicatrix of coating is required as follows by it:
Table 2 reflection indicatrix standard scale
Detecting the reflecting properties of the coating finished product of embodiment 1 and embodiment 2, its reflective insulation the performance test results is such as
Under:
The reflective insulation the performance test results table of table 3 coating finished product
By table 3 it can be seen that the coating finished product prepared by the present invention has reflective insulation function, its good heat-insulation effect, effectively
Improve energy-saving effect.
Embodiment 4
The present embodiment is made up of the component of following ratio, is all weight ratio, protection colloidal sol: dispersion phase base paint: continuous phase varnish=
20:50:50。
The each components by weight of dispersion phase base paint forms:
Deionized water 22.3%
Hydroxyethyl cellulose 1.5%
PH regulator 0.1%
Dispersion moisture agent 0.8%
Defoamer 0.1%
Infrared external reflection titanium dioxide 3%
Kaolin 10%
Coalescents 4%
Antifreezing agent 3%
Protecting colloid salt 8%
Glass microballoon 12%
Filming emulsion 35%
Preservative 0.2%
Protection colloidal sol each components by weight composition:
Deionized water 90%
Protecting colloid salt 10%
Described continuous phase varnish is made up of following components by weight percent:
Deionized water 30%
Defoamer 1.5%
Coalescents 3%
Antifreezing agent 1%
Film forming matter 57%
Glass microballoon 3%
Preservative 0.3%
Thickening agent 4%
PH regulator 0.2%
Preparation method is as follows:
Preparation protection colloidal sol: add protecting colloid salt and deionized water in dispersion machine, stirs and dissolves to protecting colloid salt, obtain
Protection colloidal sol, takes out stand-by.
Prepare color dispersion phase base paint: adding hydroxyethyl cellulose and deionized water in dispersion machine, stirring is to hydroxyl second
Base cellulose dissolution, is sequentially added into pH adjusting agent, dispersion moisture agent, defoamer afterwards, after stirring, adds infrared external reflection
Titanium dioxide, Kaolin, be sequentially added into after stirring coalescents, antifreezing agent, protecting colloid salt, glass microballoon, film forming matter and
Preservative, after being dispersed to uniformly, according to required color effect, adds aqueous color paste, and is uniformly dispersed, obtain color dispersion phase base
Plinth paint.
Preparation continuous phase varnish: under dispersant low speed (200-400r/min) dispersion condition, be sequentially added into deionized water,
Defoamer, coalescents, antifreezing agent, properly increase rotating speed and be dispersed to surface without oil slick, sequentially add film forming matter, hollow glass
Microsphere, preservative, thickening agent, PH regulator.Regulation rotating speed, keeps forming whirlpool and not exposing dispersion impeller, disperses 15-30min,
It is slowly added to thickening agent and PH regulator the most successively, regulates rotating speed, keep forming whirlpool and not exposing dispersion impeller, be dispersed to all
Even, obtain continuous phase varnish.
The preparation of finished product: the color dispersion phase base paint prepared is mixed with protection colloidal sol, sieves with colorful Special vacuum
Net granulator granulation, after obtaining color some granule, adds continuous phase varnish in coloured silk point granule, stirs and i.e. obtain reflective insulation
Multicolor finish finished product.
Prepared reflective insulation multicolor finish good stability, weather resisteant is strong, has reflective insulation function, function admirable.
Although above it has been shown and described that embodiments of the invention, it is to be understood that above-described embodiment is example
Property, it is impossible to be interpreted as limitation of the present invention, those of ordinary skill in the art is without departing from the principle of the present invention and objective
In the case of above-described embodiment can be changed within the scope of the invention, revise, replace and modification.