CN104177934A - Reversible thermochromic water-based liquid-state diatom coating - Google Patents
Reversible thermochromic water-based liquid-state diatom coating Download PDFInfo
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- CN104177934A CN104177934A CN201410419940.4A CN201410419940A CN104177934A CN 104177934 A CN104177934 A CN 104177934A CN 201410419940 A CN201410419940 A CN 201410419940A CN 104177934 A CN104177934 A CN 104177934A
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Abstract
The invention provides a reversible thermochromic water-based liquid-state diatom coating which is obtained by compounding the raw materials including reversible temperature-sensitive micro-capsule water-based dispersion liquid, a 5050 dispersant, 2,2,4-trimethyl, 1,3-pentanediol monoisobutyrate, a Kh-550 type silane coupling agent, a polyacrylate thickening agent, 2-amino-2-methyl-1-propanol, diatomite, kaolin, mica powder, octylphenol polyoxyethylene ether, titanium pigment, 705 type EVA emulsion, an AGITAN-208 type defoaming agent, isothiazolinones, water and the like. Reversible temperature-sensitive micro-capsules for preparing the reversible thermochromic water-based liquid-state diatom coating comprise first-order reversible temperature-sensitive micro-capsules and second-order reversible temperature-sensitive micro-capsules; a prepared first-order reversible thermochromic coating is brushed on walls and can realize exchange between white color and other colors, and a prepared second-order reversible thermochromic coating is brushed on walls and can realize exchange between one color and another color. Besides, the reversible thermochromic water-based liquid-state diatom coating provided by the invention also has properties of absorbing and releasing moisture, can adjust the indoor air humidity, and has a function of preventing condensation of moisture.
Description
Technical field
The present invention relates to building material field, particularly a kind of liquid diatom coating of water-based with reversibility temperature induced color changing.
Background technology
Diatomite is a kind of biogenic silicastone, is that the remains of the diatoms that grows in ocean or lake are at subaqueous deposit, through physical environment effect and a kind of non-metallic minerals forming gradually.There are a lot of micropores diatomite inside, has certain chemically reactive, and median size is less than 2 μ m, and theoretical specific surface area is (40～50) m approximately
2/ g.Because of its unique constitutional features, make diatomite there is exquisiteness, loose, light weight, porous, water-absorbent and the strong physical property of perviousness.
At present, be mainly diatom ooze product at house decorative material, it is solid state powder shape, and when use, needing workmen to add a certain proportion of water could use.And house decoration is limited by often at water source, cause certain inconvenience to processing, in addition, the amount adding water also has strict regulation, complicated construction technique, this has higher technical requirements to workmen.In addition, its use cost is high.The liquid diatom coating of water-based is taking water as dispersion medium, utilizes diatomite to contain a large amount of micropores and there is excellent physicals, more a kind of environmental protection coating material product being in a liquid state forming in conjunction with the workability of emulsion paint excellence.The liquid diatom coating of water-based can overcome the weak point of diatom ooze product, has the advantages such as construction is simple, use cost is relatively low.
Reversibility thermochromic material be a kind of can be with temperature rise or decline and repeatedly change the material of color, it is generally prepared by electron transfer type organic compound, under specified temp, change because transfer transport makes this organic molecular structure, thereby realize the transformation of color.The reversible temperature-sensing discoloring material of micro encapsulation is that mean diameter is the spherical particle of 2 ~ 7 microns; its inside is electrochromic substance; outside is that approximately 0.2 ~ 0.5 micron of thick layer neither can dissolve the transparent outer cover that also can not melt, and it can protect electrochromic substance to avoid the erosion of other chemical substances.
Being of wide application of reversibility thermochromic material, as plastic cement, ink, coating etc.To be applied in coating as example, most of reversibility thermochromic material is applied in oil paint, and the scope of brushing is generally plastic cement, metal etc.In the prior art, be applied in allochroic paint on wall little, and be mainly used in exterior coating, be applied at present in interior wall coating rarely found.
Reversibility thermochromic material is introduced to interior wall coating, it can reach a lot of purposes, for example: people can according to the variation of indoor color roughly judge indoor temperature, by the adjusting of color can change people's mood, by human body (especially children) thus thereby that contact wall can make wall color change to reach to increase is interesting, make wall color become different pattern or moulding by technological method increases the artistic feeling etc. of wall.
It is 200580017119.9 that an application number has been authorized by State Intellectual Property Office, patent name is " coating composition of variable color ", this product can be applicable to automobile, bridge and interior of building and outside, it is that employing Synolac is solvent, it is a kind of organic solvent, not environmental protection with respect to aqueous solvent, in addition, it is that color changeable pigment is directly added in coating, after product uses, because color changeable pigment directly touches outside atmosphere, the stability of product is with respect to having adopted the poor of microcapsulary.
It is 201110443941.9 that an application number has also been authorized by State Intellectual Property Office, patent name is " a kind of temperature-sensitive color-changing coating ", this product can be applicable to buildings outside, it is to have in the time that outside temperature is higher wall color for white, the function that wall color is transparent color in the time that outside temperature is lower, it is that temperature sensitivity macromolecular material and other auxiliary agents are directly added in solvent, but, temperature sensitivity macromolecular material itself is exactly a kind of unstable compound, and be applied in external wall, color changeable pigment directly touches outside atmosphere, the stability of product is with respect to having adopted the poor of microcapsulary.
For above situation, utilize the advantage of the liquid diatom coating of water-based, then in conjunction with reversible temperature-sensing discoloring material, study a kind of liquid diatom coating of water-based with reversibility temperature induced color changing just significant.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of liquid diatom coating of water-based with reversibility temperature induced color changing.
The technical scheme that the present invention solves the problems of the technologies described above is: the liquid diatom coating of water-based of the single order reversibility temperature induced color changing in a kind of liquid diatom coating of water-based with reversibility temperature induced color changing of the present invention is to adopt following weight percent formula.
The reversible temperature-sensitive microcapsule of single order aqueous liquid dispersion 10 ~ 30%, 5040 dispersion agents 0.5 ~ 2%, 2,2,4-trimethylammonium 1,3-pentanediol mono isobutyrate 0.5 ~ 2%, Kh-550 type silane coupling agent 0.1 ~ 0.3%, Polyacrylate thickeners 0.2 ~ 0.5%, 2-amino-2-methyl-1-propanol 0.1 ~ 0.5%, diatomite 15 ~ 30%, kaolin 4 ~ 8%, mica powder 5 ~ 10%, polyoxyethylene octylphenol ether 1 ~ 3%, titanium dioxide 4 ~ 8%, 705 type EVA emulsions 10 ~ 20%, AGITAN-208 type defoamer 0.1 ~ 0.3%, Kathon CG 0.1 ~ 0.3%, water surplus.
The microcapsule median size of the described reversible temperature-sensitive microcapsule of single order aqueous liquid dispersion of the present invention is 3 ~ 10 μ m, the solid content of dispersion liquid is 40 ~ 50%, discoloring temperature scope is 30 ~ 33 DEG C, outside temperature during higher than discoloring temperature range limit color be colourless, outside temperature is lower than the Show Color of prescribing a time limit under discoloring temperature scope, and displayable color is the one in redness, green, yellow, blueness.
The another kind of technical scheme that the present invention solves the problems of the technologies described above is: the liquid diatom coating of water-based of the second order reversibility temperature induced color changing in a kind of liquid diatom coating of water-based with reversibility temperature induced color changing of the present invention is to adopt following weight percent formula.
The reversible temperature-sensitive microcapsule of second order aqueous liquid dispersion 10 ~ 30%, 5040 dispersion agents 0.5 ~ 2%, 2,2,4-trimethylammonium 1,3-pentanediol mono isobutyrate 0.5 ~ 2%, Kh-550 type silane coupling agent 0.1 ~ 0.3%, Polyacrylate thickeners 0.2 ~ 0.5%, 2-amino-2-methyl-1-propanol 0.1 ~ 0.5%, diatomite 15 ~ 30%, kaolin 4 ~ 8%, mica powder 5 ~ 10%, polyoxyethylene octylphenol ether 1 ~ 3%, titanium dioxide 4 ~ 8%, 705 type EVA emulsions 10 ~ 20%, AGITAN-208 type defoamer 0.1 ~ 0.3%, Kathon CG 0.1 ~ 0.3%, water surplus.
The microcapsule median size of the reversible temperature-sensitive microcapsule of described second order aqueous liquid dispersion is 3 ~ 10 μ m, the solid content of dispersion liquid is 40 ~ 50%, discoloring temperature scope is 30 ~ 33 DEG C, it can variation with temperature become another color by a kind of color, and the color of changeable colour is the one in changing between variation between variation between variation between green and yellow, blueness and pink, green and sky blue, purple and blueness.
Preparation method of the present invention comprises the steps.
In stirring tank, add in proportion water, add again 5040 dispersion agents, 2,2,4-trimethylammonium 1,3-pentanediol mono isobutyrate, Kh-550 type silane coupling agent, polyoxyethylene octylphenol ether, 2-amino-2-methyl-1-propanol, AGITAN-208 type defoamer and Kathon CG, and stir.
Take in proportion diatomite, kaolin, mica powder and titanium dioxide, and be added in the dispersion liquid of previous step and continue to disperse.
Take in proportion 705 type EVA emulsions and in dispersion liquid, continue to disperse, finally add Polyacrylate thickeners to regulate denseness, after stirring, add temperature-sensitive microcapsule aqueous liquid dispersion, finally filling, packaging.
The present invention is by adopting microcapsulary, incapsulates having the pigment that temperature becomes, and can completely cut off and extraneous contacting, thereby it has stable performance, the advantage such as is difficult for being disturbed.Simultaneously, temperature-sensitive microcapsule are prepared into dispersion liquid, can allow temperature-sensitive microcapsule disperse equably in water-borne coatings, and form the coating system of stable in properties, thereby solve the problem of disperseing inhomogeneous, unstable and easy layering when temperature-sensitive microcapsule are directly added in coating.The reversible temperature induced color changing coating of single order brushing prepared by the present invention is on wall, and can realize wall color is coloured and white change, and the brushing of the reversible temperature induced color changing coating of second order, on wall, can realize the change that wall color is a kind of color and another kind of color.In addition, product of the present invention also has moisture adsorption and releasing energy, can regulate indoor air humidity, and has anti-dewing function.
In order to verify the standard-required that whether meets GB/T 9756-2009 " resin latex dope " of product of the present invention, the inventor is sent to third party feeler mechanism by invention sample and detects, and test result gathers as follows.
Known by third party's detected result, the standard-required of samples met GB/T 9756-2009 of the present invention " resin latex dope ".
In order to verify the standard-required that whether meets GB 18582-2008 " limits of harmful substances in indoor decorating and refurnishing materials interior wall coating " of product of the present invention, the inventor is sent to third party feeler mechanism by invention sample and detects, and test result gathers as follows.
Known by third party's detected result, the standard-required of samples met GB 18582-2008 of the present invention " limits of harmful substances in indoor decorating and refurnishing materials interior wall coating ".
In order to verify the moisture absorption and desorption property of product of the present invention, the inventor is sent to third party feeler mechanism by invention sample and detects with reference to JISA1470-1:2008 " the 1st of the moisture absorption and desorption property test method of material of construction: humidity is replied method ", and test result gathers as follows.
| Test item | Test environment | Model quality average increment (g) | Suction, moisture releasing amount (Kg/m 2） |
| Moisture absorption | 23℃，75%RH | 1.85 | 2.95×10 -2 |
| Moisture releasing | 23℃，75%RH | 1.72 | 2.75×10 -2 |
Known by third party's detected result, product of the present invention has good moisture adsorption and releasing energy.
Embodiment
Embodiment 1
In stirring tank, add 17.9 parts of water, 0.5 part of 5040 dispersion agent, 0.5 part 2,2,4-trimethylammonium 1,3-pentanediol mono isobutyrate, 0.1 part of Kh-550 type silane coupling agent, 3 parts of polyoxyethylene octylphenol ethers, 0.1 part of 2-amino-2-methyl-1-propanol, 0.3 part of AGITAN-208 type defoamer and 0.1 part of Kathon CG, and stir.Take again 15 parts of diatomite, 8 parts of kaolin, 10 parts of mica powders and 4 parts of titanium dioxides, and be added in the dispersion liquid of previous step and continue to disperse.Take in proportion 10 part of 705 type EVA emulsion continues to disperse in dispersion liquid, finally add 0.5 part of Polyacrylate thickeners to regulate denseness, after stirring, add the red reversible temperature-sensitive microcapsule aqueous liquid dispersion of 30 parts of single orders, finally filling, packaging, i.e. the present embodiment 1.
The sample brushing of preparing with embodiment 1 is after wall, and when temperature is during lower than 30 DEG C, the color of wall is red, and when temperature raises 33 DEG C time from 30 DEG C, the redness of wall shoals gradually, and in the time that temperature exceedes 33 DEG C, wall becomes white.The sample brushing of preparing with embodiment 1 is after wall, and its variable color also has reversibility, in the time that temperature exceedes 33 DEG C, wall is white, and in the time that temperature is reduced to 30 DEG C from 33 DEG C, wall color is reddened gradually by white, when temperature is during lower than 30 DEG C, the color of wall is red.
Embodiment 2
In stirring tank, add 21.9 parts of water, 1 part of 5040 dispersion agent, 1 part 2,2,4-trimethylammonium 1,3-pentanediol mono isobutyrate, 0.1 part of Kh-550 type silane coupling agent, 2 parts of polyoxyethylene octylphenol ethers, 0.2 part of 2-amino-2-methyl-1-propanol, 0.2 part of AGITAN-208 type defoamer and 0.2 part of Kathon CG, and stir.Take again 20 parts of diatomite, 7 parts of kaolin, 8 parts of mica powders and 5 parts of titanium dioxides, and be added in the dispersion liquid of previous step and continue to disperse.Take in proportion 13 part of 705 type EVA emulsion continues to disperse in dispersion liquid, finally add 0.4 part of Polyacrylate thickeners to regulate denseness, after stirring, add the green reversible temperature-sensitive microcapsule aqueous liquid dispersion of 20 parts of single orders, finally filling, packaging, i.e. the present embodiment 2.
The sample brushing of preparing with embodiment 2 is after wall, and when temperature is during lower than 30 DEG C, the color of wall is green, and when temperature raises 33 DEG C time from 30 DEG C, the green of wall shoals gradually, and in the time that temperature exceedes 33 DEG C, wall becomes white.The sample brushing of preparing with embodiment 2 is after wall, and its variable color also has reversibility, in the time that temperature exceedes 33 DEG C, wall is white, and in the time that temperature is reduced to 30 DEG C from 33 DEG C, wall color turns green gradually by white, when temperature is during lower than 30 DEG C, the color of wall is green.
Embodiment 3
In stirring tank, add 22.8 parts of water, 1.5 part of 5040 dispersion agent, 1 part 2,2,4-trimethylammonium 1,3-pentanediol mono isobutyrate, 0.2 part of Kh-550 type silane coupling agent, 1.5 parts of polyoxyethylene octylphenol ethers, 0.3 part of 2-amino-2-methyl-1-propanol, 0.2 part of AGITAN-208 type defoamer and 0.2 part of Kathon CG, and stir.Take again 25 parts of diatomite, 5 parts of kaolin, 5 parts of mica powders and 6 parts of titanium dioxides, and be added in the dispersion liquid of previous step and continue to disperse.Take in proportion 16 part of 705 type EVA emulsion continues to disperse in dispersion liquid, finally add 0.3 part of Polyacrylate thickeners to regulate denseness, after stirring, add the yellow reversible temperature-sensitive microcapsule aqueous liquid dispersion of 15 parts of single orders, finally filling, packaging, i.e. the present embodiment 3.
The sample brushing of preparing with embodiment 3 is after wall, and when temperature is during lower than 30 DEG C, the color of wall is yellow, and when temperature raises 33 DEG C time from 30 DEG C, the yellow of wall shoals gradually, and in the time that temperature exceedes 33 DEG C, wall becomes white.The sample brushing of preparing with embodiment 3 is after wall, and its variable color also has reversibility, in the time that temperature exceedes 33 DEG C, wall is white, and in the time that temperature is reduced to 30 DEG C from 33 DEG C, wall color is by white flavescence gradually, when temperature is during lower than 30 DEG C, the color of wall is yellow.
Embodiment 4
In stirring tank, add 16.6 parts of water, 2 part of 5040 dispersion agent, 2 part 2,2,4-trimethylammonium 1,3-pentanediol mono isobutyrate, 0.3 part of Kh-550 type silane coupling agent, 1 part of polyoxyethylene octylphenol ether, 0.5 part of 2-amino-2-methyl-1-propanol, 0.1 part of AGITAN-208 type defoamer and 0.3 part of Kathon CG, and stir.Take again 30 parts of diatomite, 4 parts of kaolin, 5 parts of mica powders and 8 parts of titanium dioxides, and be added in the dispersion liquid of previous step and continue to disperse.Take in proportion 20 part of 705 type EVA emulsion continues to disperse in dispersion liquid, finally add 0.2 part of Polyacrylate thickeners to regulate denseness, after stirring, add the blue reversible temperature-sensitive microcapsule aqueous liquid dispersion of 10 parts of single orders, finally filling, packaging, i.e. the present embodiment 4.
The sample brushing of preparing with embodiment 4 is after wall, and when temperature is during lower than 30 DEG C, the color of wall is blue, and when temperature raises 33 DEG C time from 30 DEG C, the blueness of wall shoals gradually, and in the time that temperature exceedes 33 DEG C, wall becomes white.The sample brushing of preparing with embodiment 4 is after wall, and its variable color also has reversibility, in the time that temperature exceedes 33 DEG C, wall is white, and in the time that temperature is reduced to 30 DEG C from 33 DEG C, wall color becomes blue gradually by white, when temperature is during lower than 30 DEG C, the color of wall is blue.
Embodiment 5
In stirring tank, add 17.9 parts of water, 0.5 part of 5040 dispersion agent, 0.5 part 2,2,4-trimethylammonium 1,3-pentanediol mono isobutyrate, 0.1 part of Kh-550 type silane coupling agent, 3 parts of polyoxyethylene octylphenol ethers, 0.1 part of 2-amino-2-methyl-1-propanol, 0.3 part of AGITAN-208 type defoamer and 0.1 part of Kathon CG, and stir.Take again 15 parts of diatomite, 8 parts of kaolin, 10 parts of mica powders and 4 parts of titanium dioxides, and be added in the dispersion liquid of previous step and continue to disperse.Take in proportion 10 part of 705 type EVA emulsion continues to disperse in dispersion liquid, finally add 0.5 part of Polyacrylate thickeners to regulate denseness, after stirring, add the reversible temperature-sensitive microcapsule of the green flavescence look of 30 parts of second orders aqueous liquid dispersion, finally filling, packaging, i.e. the present embodiment 5.
The sample brushing of preparing with embodiment 5 is after wall, and when temperature is during lower than 30 DEG C, the color of wall is green, and when temperature raises 33 DEG C time from 30 DEG C, it is yellow that the green of wall gradually becomes, in the time that temperature exceedes 33 DEG C, and wall yellowing.The sample brushing of preparing with embodiment 5 is after wall, and its variable color also has reversibility, in the time that temperature exceedes 33 DEG C, wall is yellow, and in the time that temperature is reduced to 30 DEG C from 33 DEG C, wall color turns green gradually by yellow, when temperature is during lower than 30 DEG C, the color of wall is green.
Embodiment 6
In stirring tank, add 21.9 parts of water, 1 part of 5040 dispersion agent, 1 part 2,2,4-trimethylammonium 1,3-pentanediol mono isobutyrate, 0.1 part of Kh-550 type silane coupling agent, 2 parts of polyoxyethylene octylphenol ethers, 0.2 part of 2-amino-2-methyl-1-propanol, 0.2 part of AGITAN-208 type defoamer and 0.2 part of Kathon CG, and stir.Take again 20 parts of diatomite, 7 parts of kaolin, 8 parts of mica powders and 5 parts of titanium dioxides, and be added in the dispersion liquid of previous step and continue to disperse.Take in proportion 13 part of 705 type EVA emulsion continues to disperse in dispersion liquid, finally add 0.4 part of Polyacrylate thickeners to regulate denseness, after stirring, add the blue pink reversible temperature-sensitive microcapsule aqueous liquid dispersion of 20 parts of second orders, finally filling, packaging, i.e. the present embodiment 6.
The sample brushing of preparing with embodiment 6 is after wall, and when temperature is during lower than 30 DEG C, the color of wall is blue, and when temperature raises 33 DEG C time from 30 DEG C, the blueness of wall gradually becomes pink, in the time that temperature exceedes 33 DEG C, and wall pulverize redness.The sample brushing of preparing with embodiment 6 is after wall, and its variable color also has reversibility, in the time that temperature exceedes 33 DEG C, wall is pink, and in the time that temperature is reduced to 30 DEG C from 33 DEG C, wall color becomes blue gradually by pink, when temperature is during lower than 30 DEG C, the color of wall is blue.
Embodiment 7
In stirring tank, add 22.8 parts of water, 1.5 part of 5040 dispersion agent, 1 part 2,2,4-trimethylammonium 1,3-pentanediol mono isobutyrate, 0.2 part of Kh-550 type silane coupling agent, 1.5 parts of polyoxyethylene octylphenol ethers, 0.3 part of 2-amino-2-methyl-1-propanol, 0.2 part of AGITAN-208 type defoamer and 0.2 part of Kathon CG, and stir.Take again 25 parts of diatomite, 5 parts of kaolin, 5 parts of mica powders and 6 parts of titanium dioxides, and be added in the dispersion liquid of previous step and continue to disperse.Take in proportion 16 part of 705 type EVA emulsion continues to disperse in dispersion liquid, finally add 0.3 part of Polyacrylate thickeners to regulate denseness, after stirring, add the blue reversible temperature-sensitive microcapsule aqueous liquid dispersion of the green change of weather of 15 parts of second orders, finally filling, packaging, i.e. the present embodiment 7.
The sample brushing of preparing with embodiment 7 is after wall, and when temperature is during lower than 30 DEG C, the color of wall is green, and when temperature raises 33 DEG C time from 30 DEG C, the green of wall gradually becomes sky blue, and in the time that temperature exceedes 33 DEG C, wall becomes sky blue.The sample brushing of preparing with embodiment 7 is after wall, and its variable color also has reversibility, in the time that temperature exceedes 33 DEG C, wall is sky blue, and in the time that temperature is reduced to 30 DEG C from 33 DEG C, wall color turns green gradually by sky blue, when temperature is during lower than 30 DEG C, the color of wall is green.
Embodiment 8
In stirring tank, add 16.6 parts of water, 2 part of 5040 dispersion agent, 2 part 2,2,4-trimethylammonium 1,3-pentanediol mono isobutyrate, 0.3 part of Kh-550 type silane coupling agent, 1 part of polyoxyethylene octylphenol ether, 0.5 part of 2-amino-2-methyl-1-propanol, 0.1 part of AGITAN-208 type defoamer and 0.3 part of Kathon CG, and stir.Take again 30 parts of diatomite, 4 parts of kaolin, 5 parts of mica powders and 8 parts of titanium dioxides, and be added in the dispersion liquid of previous step and continue to disperse.Take in proportion 20 part of 705 type EVA emulsion continues to disperse in dispersion liquid, finally add 0.2 part of Polyacrylate thickeners to regulate denseness, after stirring, add 10 parts of second order purples to turn blue reversible temperature-sensitive microcapsule aqueous liquid dispersion, finally filling, packaging, i.e. the present embodiment 8.
The sample brushing of preparing with embodiment 8 is after wall, and when temperature is during lower than 30 DEG C, the color of wall is purple, and when temperature raises 33 DEG C time from 30 DEG C, it is blue that the purple of wall becomes gradually, and in the time that temperature exceedes 33 DEG C, wall becomes blueness.The sample brushing of preparing with embodiment 8 is after wall, and its variable color also has reversibility, in the time that temperature exceedes 33 DEG C, wall is blue, and in the time that temperature is reduced to 30 DEG C from 33 DEG C, wall color is by blueness purpling gradually, when temperature is during lower than 30 DEG C, the color of wall is purple.
Claims (2)
1. the liquid diatom coating of water-based with reversibility temperature induced color changing, is characterized in that, it is to adopt following weight percent formula:
The reversible temperature-sensitive microcapsule of single order aqueous liquid dispersion 10 ~ 30%, 5040 dispersion agents 0.5 ~ 2%, 2,2,4-trimethylammonium 1,3-pentanediol mono isobutyrate 0.5 ~ 2%, Kh-550 type silane coupling agent 0.1 ~ 0.3%, Polyacrylate thickeners 0.2 ~ 0.5%, 2-amino-2-methyl-1-propanol 0.1 ~ 0.5%, diatomite 15 ~ 30%, kaolin 4 ~ 8%, mica powder 5 ~ 10%, polyoxyethylene octylphenol ether 1 ~ 3%, titanium dioxide 4 ~ 8%, 705 type EVA emulsions 10 ~ 20%, AGITAN-208 type defoamer 0.1 ~ 0.3%, Kathon CG 0.1 ~ 0.3%, water surplus;
The microcapsule median size of the reversible temperature-sensitive microcapsule of described single order aqueous liquid dispersion is 3 ~ 10 μ m, the solid content of dispersion liquid is 40 ~ 50%, discoloring temperature scope is 30 ~ 33 DEG C, outside temperature during higher than discoloring temperature range limit color be colourless, outside temperature is lower than the Show Color of prescribing a time limit under discoloring temperature scope, and displayable color is the one in redness, green, yellow, blueness.
2. the liquid diatom coating of water-based with reversibility temperature induced color changing, is characterized in that, it is to adopt following weight percent formula:
The reversible temperature-sensitive microcapsule of second order aqueous liquid dispersion 10 ~ 30%, 5040 dispersion agents 0.5 ~ 2%, 2,2,4-trimethylammonium 1,3-pentanediol mono isobutyrate 0.5 ~ 2%, Kh-550 type silane coupling agent 0.1 ~ 0.3%, Polyacrylate thickeners 0.2 ~ 0.5%, 2-amino-2-methyl-1-propanol 0.1 ~ 0.5%, diatomite 15 ~ 30%, kaolin 4 ~ 8%, mica powder 5 ~ 10%, polyoxyethylene octylphenol ether 1 ~ 3%, titanium dioxide 4 ~ 8%, 705 type EVA emulsions 10 ~ 20%, AGITAN-208 type defoamer 0.1 ~ 0.3%, Kathon CG 0.1 ~ 0.3%, water surplus;
The microcapsule median size of the reversible temperature-sensitive microcapsule of described second order aqueous liquid dispersion is 3 ~ 10 μ m, the solid content of dispersion liquid is 40 ~ 50%, discoloring temperature scope is 30 ~ 33 DEG C, it can variation with temperature become another color by a kind of color, and the color of changeable colour is the one in changing between variation between variation between variation between green and yellow, blueness and pink, green and sky blue, purple and blueness.
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| CN108948842A (en) * | 2018-05-28 | 2018-12-07 | 中南大学 | A kind of temperature-control discoloring coating of environment purification and preparation method thereof |
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