CN103059632B - Additive for thermal insulation paint and preparation method, and water-based paint containing additive - Google Patents
Additive for thermal insulation paint and preparation method, and water-based paint containing additive Download PDFInfo
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- CN103059632B CN103059632B CN201110322438.8A CN201110322438A CN103059632B CN 103059632 B CN103059632 B CN 103059632B CN 201110322438 A CN201110322438 A CN 201110322438A CN 103059632 B CN103059632 B CN 103059632B
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Abstract
The invention provides an additive for a thermal insulation paint, which comprises microcapsule vitrified microbead, nano oxide, dispersant, modifier, thickening agent, defoaming agent and water, wherein the microcapsule vitrified microbead is prepared by filling a phase-change energy storage material in the hollow part of the vitrified microbead and coating a seal film composed of acrylic acid and first nano silicon dioxide on the surface. The invention also provides a preparation method of the additive and a water-based paint containing the additive. The water-based paint containing the additive has the advantages of obvious thermal insulation effect, great difference between the coating surface temperature and space temperature, and favorable thermal insulation effect.
Description
Technical field
The invention belongs to lagging material field, the water-borne coatings that relates to a kind of thermal insulating coating additive and preparation method thereof and contain this additive.
Background technology
In current existing thermal insulating coating, the defect of and material therefor loaded down with trivial details due to its manufacture craft, all exist that thermal conductivity is higher, heat reflectivity is low, environmental-protecting performance, scrub performance, the resistance to still defect such as undesirable of performance, ageing-resistant performance and weather resistance that stains.Part thermal insulating coating exists shortcoming aspect fire performance, and the base material of its coating is very restricted.The appearance of Water-based thermal insulation coating has solved that environmental-protecting performance is poor, scrub performance, resistance toly stain the problems such as performance, ageing-resistant performance and weather resistance be undesirable, has solved heat insulating effect simultaneously.Be combined with existing exterior wall heat-preserving system, fully reach environmental protection and energy saving, the effect of heat insulating.But because this Water-based thermal insulation coating processing technology requires high, complex process, material property is had relatively high expectations, cost is high, so water-borne heat-insulating is so far just in development, but along with social development, the compulsory measure of country to energy-conserving and environment-protective, water nano thermal insulating coating has become a kind of inevitable development trend.
At present, the water nano thermal insulating coating on market is applied on glass mostly, and the price that is used in the water nano thermal insulating coating on construction wall is higher, and effect of heat insulation is bad.
Summary of the invention
The present invention solves existing water-borne coatings effect of heat insulation for building poor technical problem, and additive and preparation method thereof for water-borne coatings of a kind of good heat-insulation effect, the water-borne coatings that contains this additive are provided.
The invention discloses a kind of thermal insulating coating additive, this additive comprises microcapsule glass bead, nano-oxide, dispersion agent, properties-correcting agent, thickening material, defoamer and water; Described microcapsule ripple microballon is to be filled with phase-changing energy storage material at the hollow space of glass bead, the sealing membrane of the coated vinylformic acid in surface and the first nano silicon composition.
The present invention also provides the preparation method of a kind of thermal insulating coating additive, and the method comprises the following steps:
S1, the preparation of microcapsule glass bead: adopt vacuum impregnation method that phase-changing energy storage material is penetrated into the inner microcapsule glass bead precursor that forms of glass bead; Then precursor is positioned over to dipping in the emulsion that vinylformic acid and the first nano silicon form and can obtains microcapsule glass bead;
S2, additive preparation: dispersion agent, properties-correcting agent, thickening material, defoamer are added to the water to abundant dispersion, then add microcapsule glass bead to be fully uniformly mixed, finally add nano-oxide to mix and obtain thermal insulating coating additive.
The present invention also provides a kind of water-borne coatings, and described water-borne coatings contains additive of the present invention; Taking the gross weight of water-borne coatings as benchmark, the content of described additive is 35-40wt%.
The present invention adopts multiple nano components and makes paint additive through the microcapsule glass bead of special processing, can effectively improve the features such as heat insulation property thermal insulation, germ resistance, pollution resistance.And can mix by a certain percentage rear use with the water-borne coatings on market, can apply to construction wall, have technique simple, easy and simple to handle, functional, the feature such as easy to use, has reduced the cost of wall thermal insulating.
Embodiment
In order to make technical problem solved by the invention, technical scheme and beneficial effect clearer, below in conjunction with embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
The invention provides a kind of thermal insulating coating additive, this additive comprises microcapsule glass bead, nano-oxide, dispersion agent, properties-correcting agent, thickening material, defoamer and water; Described microcapsule ripple microballon is to be filled with phase-changing energy storage material at the hollow space of glass bead, the sealing membrane of the coated vinylformic acid in surface and the first nano silicon composition.
Preferably; taking the gross weight of additive as benchmark; the content of described microcapsule glass bead is 40-60wt%; the content of described nano-oxide is 2-5wt%; the content of described dispersion agent is 0.1-0.5wt%, and the content of described properties-correcting agent is 0.1-0.5wt%, and the content of described thickening material is 0.1-0.5wt%; the content of described defoamer is 0.15-0.5wt%, and surplus is water.
Preferably, the median size of described ripple microballon is 5um-20um.The function such as the glass bead of this particle size range has that reflectivity is high, good heat-insulation effect, low, the smooth and level property of thermal conductivity are good.
Preferably, the median size of described the first nano silicon is 10-40nm.The nano silicon of this particle size range has thickening, improves the functions such as suspension, erosion resistance.
Preferably, described nano-oxide is the second nanometer SiO
2, nano-TiO
2, nano-ZnO
2in at least one.Described the second nanometer SiO
2median size be 10-40nm, the silicon-dioxide of this particle size range has thickening, improves the functions such as suspension, erosion resistance; Nano-TiO
2median size be 20-40nm, the titanium dioxide in this particle size range has the functions such as the uvioresistant, photochemical catalysis catalyst of enhancing, antibacterial, air cleaner; Nano-ZnO
2median size be 20-40nm, the zinc oxide in this particle size range has the coating intensity of enhancing and changes the functions such as honey, binding property, smooth finish.
Phase-changing energy storage material is to utilize heat absorption and the exothermic effect of material in phase transition process, carries out the material of thermal energy storage and temperature adjusting.This material because of approximately constant temperature in phase transition process, system temperature can control etc. advantage at alleviating energy crisis, improve aspect energy utilization and be used widely.The present invention's phase-changing energy storage material used is at least one in paraffin, lipid acid and crystalline hydrate salt.
According to additive provided by the present invention, described dispersion agent, properties-correcting agent, thickening material, defoamer are the conventional various materials in this area, and for example dispersion agent is one or both in BYK 5040 and BYK 5027; Properties-correcting agent is KH-550; Thickening material is PUR-50; Defoamer is YH-203.
The present invention also provides the preparation method of a kind of thermal insulating coating additive, and the method comprises the following steps:
S1, the preparation of microcapsule glass bead: adopt vacuum impregnation method that phase-changing energy storage material is penetrated into the inner microcapsule glass bead precursor that forms of glass bead; Then precursor is positioned over to dipping in the emulsion that vinylformic acid and the first nano silicon form and can obtains microcapsule glass bead;
S2, additive preparation: dispersion agent, properties-correcting agent, thickening material, defoamer are added to the water to abundant dispersion, then add microcapsule glass bead to be fully uniformly mixed, finally add nano-oxide to mix and obtain thermal insulating coating additive.
Preferably, the weight ratio of described ripple microballon, phase change material and emulsifying agent is 3-6:5-10:5-10.Phase change material in this specific gravity range and emulsifying agent can fully soak glass bead, glass bead can fully be contacted with emulsifying agent with phase change material completely, and make phase change material can be penetrated into glass bead inside completely.Emulsifying agent is better coated on the surface of ripple microballon.
Preferably, in described emulsifying agent, the weight ratio of vinylformic acid and the first nano silicon is 1-4:1.The present invention's emulsifying agent used is that vinylformic acid and 5-10 part first nano silicon of 10-20 part is mixed to form.The film-forming properties that can improve mixture at this weight ratio scope inner propene acid and nano silicon, is coated on glass bead surface.
Preferably, described vacuum impregnation method, for phase change material being placed in to heating emulsification in stirrer, then adds glass bead, after vacuum tightness is fully to stir under 100KPa-120KPa condition, filters, dry.The temperature 45-60 DEG C of heating emulsification.
Preferably, the ripple microballon that is coated with emulsifying agent is stirred to 1-2 hour under the rotating speed of 1200 revs/min, filter, then at 100-120 DEG C, be dried 2 hours.
The concrete steps of step S2 are: dispersion agent, properties-correcting agent, thickening material, defoamer are added to the water with 500r/min and stir 10min; add again microcapsule glass bead to stir 1h with 2000r/min; finally add nano-oxide to stir 2 hours with 2500r/min, make paint additive of the present invention.
The present invention also provides a kind of water-borne coatings, and described water-borne coatings contains additive of the present invention; Taking the gross weight of water-borne coatings as benchmark, the content of described additive is 35-40wt%.Within the scope of this addition, can improve the glossiness of coating, do not affect the levelling property of coating, make coating possess effect of insulation, heat insulation, waterproof, mildew-resistant simultaneously.
Below in conjunction with embodiment, the present invention is described in further detail.
Embodiment 1
1, the preparation of microcapsule ripple microballon: the glass bead that is 15um by particle diameter; adopt vacuum impregnation method that phase change material is penetrated into glass bead inside; vacuum impregnation method is specially: phase change material paraffin is placed in to heating emulsification in stirrer; 60 DEG C of Heating temperatures; then the proportioning that is 5:3 by the weight ratio of phase-changing energy storage material and ripple microballon, adds the glass bead of particle diameter 15um, after vacuum tightness is fully to stir under 120KPa condition; filter, dry at normal temperatures.Then by the glass bead of above-mentioned processing, the proportioning that is 5:4 according to the weight ratio of emulsifying agent and ripple microballon joins in emulsifying agent, and described emulsifying agent is the vinylformic acid of 20 parts and the emulsion of 10 parts of nano silicons, and the particle diameter of nano silicon is 20nm.Finally under the rotating speed of 1200 revs/min, stir 2 hours, filter, at 120 DEG C, be dried 2 hours, make above-mentioned microcapsule glass bead A1.
2, the preparation of additive
Nanometer SiO
22%
Nano-TiO
21%
Microcapsule glass bead 50%
BYK 5040 0.65%
KH-550 0.65%
Thickening material 0.5%
Defoamer 0.2%
Water surplus
Take material by above proportioning, under 500r/min rotating speed, dispersant B YK 5040, properties-correcting agent KH-550 are disperseed to 10Min, add subsequently microcapsule glass bead to disperse 1h under 2000r/min rotating speed, then add nano-TiO
2disperse 1h with 2500r/min rotating speed, finally add remaining nanometer SiO
2and disperse 1h with 2500r/min rotating speed, prepare additive samples B1.
3, prepare water-borne coatings
Mix and obtain water-borne coatings C1 of the present invention with the weight 3:5 of water-borne coatings (beautiful scholar, the W1000 of being coated with) according to additive B 1.
Embodiment 2
1, prepare microcapsule glass bead A2 according to the method for embodiment 1, difference is: the particle diameter of ripple microballon is 20um; The weight ratio of described ripple microballon, phase-changing energy storage material and emulsifying agent is 6:10:10; Emulsifying agent is the vinylformic acid of 10 parts and the emulsion of 5 parts of nano silicons, and the particle diameter of nano silicon is 10nm.
2, prepare additive samples B2 according to the method for embodiment 1, difference is: each material and content are as follows
Nanometer SiO
23%
Nano-TiO
21.5%
Nano-ZnO
21%
Microcapsule glass bead 40%
BYK 5040 0.25%
BYK 5027 0.3%
KH-550 0.45%
Thickening material 0.15%
Defoamer 0.20%
Water surplus
3, prepare water-borne coatings C2 according to the method for embodiment 1, difference is that the weight ratio of additive and water-borne coatings is 7:13.
Embodiment 3
Prepare microcapsule glass bead A3 according to the method for embodiment 1, difference is: the particle diameter of ripple microballon is 20um; The weight ratio of described ripple microballon, phase-changing energy storage material and emulsifying agent is 3:5:5; Emulsifying agent is the vinylformic acid of 15 parts and the emulsion of 8 parts of nano silicons, and the particle diameter of nano silicon is 40nm.
Prepare additive samples B3 according to the method for embodiment 1, difference is: each material and content are as follows
Nano-TiO
21%
Nano-ZnO
21%
Microcapsule glass bead 60%
BYK 5027 0.1%
KH-550 0. 5%
Thickening material 0.1%
Defoamer 0.5%
Water surplus
3, prepare water-borne coatings C3 according to the method for embodiment 1, difference is that the weight ratio of additive and water-borne coatings is 2:3.
Embodiment 4
Prepare microcapsule glass bead A4 according to the method for embodiment 1, difference is: the particle diameter of ripple microballon is 20um; The weight ratio of described ripple microballon, phase-changing energy storage material and emulsifying agent is 4:8:8; Emulsifying agent is the vinylformic acid of 15 parts and the emulsion of 8 parts of nano silicons, and the particle diameter of nano silicon is 30nm.
Prepare additive samples B4 according to the method for embodiment 1, difference is: each material and content are as follows
Nanometer SiO
23%
Nano-TiO
21%
Nano-ZnO
21%
Microcapsule glass bead 55%
BYK 5040 0.2%
BYK 5027 0.3%
KH-550 0.1%
Thickening material 0.2%
Defoamer 0.15%
Water surplus
3, prepare water-borne coatings C4 according to the method for embodiment 1, difference is that the weight ratio of additive and water-borne coatings is 3:5.
Comparative example 1
Water-borne coatings (beautiful scholar, the W1000 of the being coated with) DC1 that market is bought.
Testing method:
Heat-proof quality test
Test set design: this test set is simulant building room body, with light source direct projection model, test room temps within doors, the effectively effect of heat insulation of reflection model, device is made by extruded polystyrene plate, its length is of a size of 15cm × 15cm × 10cm, thickness is 3cm, and inner chamber body is of a size of 12cm × 12cm × 10cm, and top is the 1mm steel plate that scribbles nanometer heat isolation paint.
Test sample preparation: will make water-borne coatings and be applied at twice 12cm × 12cm, on the steel plate that thickness is 1mm, smearing the timed interval for twice is 4h, total coating thickness is 200um test afterwards in dry 5 days.
Test: the model preparing is placed in to simulation roof, with 220W100V incandescent light vertical irradiation, with thermocouple thermometer testing coating surface and simulate the changing conditions of portion's room temps within doors respectively, after 0.5h, 1h and 2h, record its temperature conditions, and calculate the temperature difference simultaneously.The results are shown in Table 1.
Table 1
。
In table 1, can find out, the effect of heat insulation of the water-borne coatings that contains additive of the present invention is obvious, and its coatingsurface temperature and room temps gap are larger; And while not containing the water-borne coatings that additive of the present invention is purchased, the temperature difference is minimum, effect of heat insulation is poor.
Claims (12)
1. a thermal insulating coating additive, is characterized in that, this additive comprises microcapsule glass bead, nano-oxide, dispersion agent, properties-correcting agent, thickening material, defoamer and water; Described microcapsule ripple microballon is to be filled with phase-changing energy storage material at the hollow space of glass bead, the sealing membrane of the coated vinylformic acid in surface and the first nano silicon composition.
2. additive according to claim 1; it is characterized in that; taking the gross weight of additive as benchmark; the content of described microcapsule glass bead is 40-60wt%, and the content of described nano-oxide is 2-5wt%, and the content of described dispersion agent is 0.1-0.5wt%; the content of described properties-correcting agent is 0.1-0.5wt%; the content of described thickening material is 0.1-0.5wt%, and the content of described defoamer is 0.15-0.5wt%, and surplus is water.
3. additive according to claim 1, is characterized in that, the median size of described ripple microballon is 5um-20um.
4. additive according to claim 1, is characterized in that, the median size of described the first nano silicon is 10-40nm.
5. additive according to claim 1, is characterized in that, described nano-oxide is the second nanometer SiO
2, nano-TiO
2and nano-ZnO
2in at least one.
6. additive according to claim 5, is characterized in that, the median size of described the second nanometer SiO2 is 10-40nm, nano-TiO
2median size be 20-40nm, nano-ZnO
2median size be 20-40nm.
7. additive according to claim 1, is characterized in that, described phase-changing energy storage material is at least one in paraffin, lipid acid and crystalline hydrate salt.
8. a preparation method for additive for thermal insulating coating, is characterized in that, comprises the following steps:
S1, the preparation of microcapsule glass bead: adopt vacuum impregnation method that phase-changing energy storage material is penetrated into the inner microcapsule glass bead precursor that forms of glass bead; Then precursor is positioned over to dipping in the emulsion that vinylformic acid and the first nano silicon form and can obtains microcapsule glass bead;
S2, additive preparation: dispersion agent, properties-correcting agent, thickening material, defoamer are added to the water to abundant dispersion, then add microcapsule glass bead to be fully uniformly mixed, finally add nano-oxide to mix and obtain thermal insulating coating additive.
9. preparation method according to claim 8, is characterized in that, the weight ratio of described glass bead, phase-changing energy storage material and emulsion is 3-6:5-10:5-10.
10. preparation method according to claim 8, is characterized in that, in described emulsion, the weight ratio of vinylformic acid and the first nano silicon is 1-4:1.
11. preparation methods according to claim 8, is characterized in that, described vacuum impregnation method, for phase change material being placed in to heating emulsification in stirrer, then adds glass bead, after vacuum tightness is fully to stir under 100KPa-120KPa condition, filter, dry.
12. 1 kinds of water-borne coatingss, is characterized in that, described water-borne coatings contains the additive described in claim 1-7 any one; Taking the gross weight of water-borne coatings as benchmark, the content of described additive is 35-40wt%.
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|---|---|---|---|
| CN201110322438.8A CN103059632B (en) | 2011-10-21 | 2011-10-21 | Additive for thermal insulation paint and preparation method, and water-based paint containing additive |
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| CN103059632B true CN103059632B (en) | 2014-11-19 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3037496B1 (en) * | 2013-08-23 | 2020-05-06 | National University Corporation Kobe University | Latent heat transfer material micro-encapsulated in hard shell, and production method for same |
| CN105566828B (en) | 2014-09-05 | 2018-09-14 | 韩国科学技术研究院 | Include the transparent thermal insulation material and its manufacturing method of polymeric capsule |
| CN108996042A (en) * | 2018-09-10 | 2018-12-14 | 天津大学 | A kind of heat preservation packing box |
| CN109545888A (en) * | 2018-11-07 | 2019-03-29 | 南昌航空大学 | A method of improving polysilicon solar cell photoelectric conversion efficiency |
| CN109681922A (en) * | 2018-11-20 | 2019-04-26 | 吴江市格瑞福金属制品有限公司 | A kind of novel energy-conserving kitchen range |
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|---|---|---|---|---|
| CN1435453A (en) * | 2002-01-31 | 2003-08-13 | 刘承晖 | Hollow microbead filling paint and producing process thereof |
| EP1473331A1 (en) * | 2002-02-04 | 2004-11-03 | Asahi Kasei Kabushiki Kaisha | Antifouling water-based coating composition |
| CN101139472A (en) * | 2007-10-19 | 2008-03-12 | 同济大学 | Phase-change energy-storage composite coating material and method for making same |
| CN101348626A (en) * | 2008-09-17 | 2009-01-21 | 中国建筑材料科学研究总院 | Temperature adjustment coating and preparation thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005307009A (en) * | 2004-04-22 | 2005-11-04 | Chugai Shoko Kk | Surface coating agent and surface coating method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1435453A (en) * | 2002-01-31 | 2003-08-13 | 刘承晖 | Hollow microbead filling paint and producing process thereof |
| EP1473331A1 (en) * | 2002-02-04 | 2004-11-03 | Asahi Kasei Kabushiki Kaisha | Antifouling water-based coating composition |
| CN101139472A (en) * | 2007-10-19 | 2008-03-12 | 同济大学 | Phase-change energy-storage composite coating material and method for making same |
| CN101348626A (en) * | 2008-09-17 | 2009-01-21 | 中国建筑材料科学研究总院 | Temperature adjustment coating and preparation thereof |
Non-Patent Citations (1)
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