CN1903958A - Synthesized polyurethane glass heat insulating paint and its preparation method - Google Patents
Synthesized polyurethane glass heat insulating paint and its preparation method Download PDFInfo
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- CN1903958A CN1903958A CN 200610036789 CN200610036789A CN1903958A CN 1903958 A CN1903958 A CN 1903958A CN 200610036789 CN200610036789 CN 200610036789 CN 200610036789 A CN200610036789 A CN 200610036789A CN 1903958 A CN1903958 A CN 1903958A
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Abstract
The present invention discloses a synthetic polyurethane glass heat-insulating coating and its preparation method. Said coating includes (by wt%) 40-90% of synthetic polyurethane resin, 10-60% of nano ATO slurry and diluting agent, the solid content of nano ATO slurry is 10-30%, grain size is 50-100 nm and coating wet film thickness is 20-400 micrometers. Its preparation method includes the following steps: firstly, drop-adding the above-mentioned nano ATO slurry into water-base polyurethane, stirring them for 10-30 min so as to obtain synthetic polyurethane glass heat-insulating coating. The glass made up by using said coating has higher visible light transmittance, at the same time has high reflectivity for infrared ray (heat radiation).
Description
Technical field
The present invention relates to nano functional coating, be specifically related to a kind of synthesized polyurethane glass heat insulating paint and preparation method thereof.
Background technology
Energy-saving glass on the market mainly contains heat reflection coated glass and low radiation coated glass at present.Heat-reflecting glass be plate metal at glass surface, nonmetal and sull makes it have certain reflecting effect, solar energy reflection can be returned in the atmosphere, reaches the purpose that stops in the solar thermal energy inlet chamber.Amount in the sun power inlet chamber is few more, and air conditioner load is also just few more.Its control to sun power of the high more explanation of the reflectivity of heat-reflecting glass is strong more, thereby but the visible light transmissivity of glass can reduce along with the rising of reflectivity light transmission is reduced, influence the daylighting effect, too high glass-reflected rate also the light pollution problem may occur.Heat reflection coated glass visible light transmissivity is lower, is generally 20～30%.Because heat reflection coated glass visible light transmissivity is low, greatly influences indoor lighting, cause lighting expense to increase.
Low emissivity glass is to make the radiant ratio on surface be lower than simple glass by apply low-emissivity coating at glass surface, thereby the radiation loss that reduces heat reaches the reduction heating cost, realizes energy-conservation purpose.Radiant ratio is low more, and the radiation heat loss of taking place by glass surface is few more, and the energy-saving effect of glass is good more.Glass plates low-radiation film, and its heat-proof quality is improved greatly.Winter, the far infrared rays that it distributes indoor radiator element and indoor object, almost as the insulation mirror, most of reflected back is indoor, guarantees that indoor heat does not does not scatter and disappear to outdoor, thereby can save heat cost.In summer, it can stop outdoor ground, build in the thermal radiation inlet chamber that sends, and saves the air-conditioning expense.Transmitance to visible light is moderate, and visible reflectance is low, can avoid the generation of light pollution, builds good luminous environment.Mainly contain the low radiation coated glass that the online chemical Vapor deposition process of magnetron sputtering method and float glass process (CVD) is produced at present on the market, but price is higher, is difficult to enter common people house.
In addition, existing nano transparent heat-insulating glass coating need carry out baking-curing when using in baking oven, be unfavorable for site operation.
Summary of the invention
The objective of the invention is to overcome the shortcoming of prior art, provide a kind of and have the excellent adiabatic capacity and the transparency simultaneously concurrently, and production technique is simple, easy construction, synthesized polyurethane glass heat insulating paint that production cost is low and preparation method thereof.
The present invention is achieved through the following technical solutions:
A kind of synthesized polyurethane glass heat insulating paint by weight percentage, comprises following component:
Synthesis of polyurethane resin 40-90%
Nano ATO slurry 10-60%
Thinner 0-5%
Described nano ATO (antimony-doped stannic oxide) solid content of slurry is 10-30%, and particle diameter is 50-100nm; Described coating wet-film thickness is 20～400 microns.
Described synthesis of polyurethane resin is an aqueous polyurethane.
Described synthesis of polyurethane resin is the butyrous polyurethane lacquer, is made up of polyurethane lacquer A and polyurethane lacquer B, during use, is prepared in 8: 5 ratio by polyurethane lacquer A and polyurethane lacquer B.
Described polyurethane lacquer dilutes by thinner, and described thinner is rising star's board polyurethane paint solvent.
A kind of method of preparation synthesized polyurethane glass heat insulating paint: by weight percentage, the nano ATO slurry that first solid content with 10-60% is 10-30% is added drop-wise in the aqueous polyurethane of 40-90%, and stirred 10-30 minute, get synthesized polyurethane glass heat insulating paint.
The another kind of method of preparation synthesized polyurethane glass heat insulating paint: by weight percentage, earlier with 40-90% by polyurethane lacquer A, the B compositions in weight percentage based polyurethane varnish that makes up oil at 8: 5, subsequently with the mixing diluents of 0-5%, stirred 10～30 minutes, the nano ATO slurry that with solid content is 10-30% more slowly is added drop-wise in the mixture, and with magnetic stirrer 10～30 minutes, synthesized polyurethane glass heat insulating paint.
Principle of the present invention: the nano-powder that will have heat insulating function is applied to glass surface by a kind of carrier, thereby makes glass have heat insulating function, has high visible light transmissivity simultaneously in visible-range.
Have following advantage with respect to prior art the present invention:
(1) rete that coats need not oven dry, can be dry voluntarily, and production technique is simple, easy construction.
(2) though overcome that the coating of exploitation in the past has thermal insulation but the transparency is poor, though or the shortcoming of transparent thermal insulation difference, both advantage is rolled into one.Can be low to moderate 0.61 (the shading coefficient SC of the thick white glass of 6mm has been 0.94 as the thick white glass of the present 6mm back shading coefficient SC that films, the shading coefficient of coating back glass is than blank glass low 35%, heat-proof quality has raising by a relatively large margin), and corresponding visible light transmissivity is higher, about 60%.
(3) production cost is low.At first, do not need expensive facility investment, produce simple; Secondly, the coated glass price of producing is lower.
(4) the smooth smooth visuality of glass surface is good, with line rod spreader thermal insulating coating is applied to clean glass surface, and coating is levelling automatically, and surfacing is smooth, sees through glass and sees that object is also more clearly.
Description of drawings
Fig. 1 is the transmittance curve figure of the coated glass of embodiment 1～5 preparation;
Fig. 2 is the transmittance curve figure of the coated glass of embodiment 6～10 preparations.
Embodiment
The present invention is further illustrated below in conjunction with drawings and Examples, but the scope of protection of present invention is not limited to the scope that embodiment represents.
The configuration of nano ATO slurry:
Solid content is 20% nano ATO formula of size and process for preparation: (other solid content can exhibitionly dispose)
Raw material is ATO powder (grain-size is less than 20nm);
Solvent is the mixture of methyl alcohol, ethanol, Virahol and propyl carbinol;
Dispersion agent is the hexadecyl benzene sulfonic acid sodium salt;
Equipment: vibration mill
Batching: ATO powder 200 grams; Methyl alcohol 200 grams, ethanol 200 grams, Virahol 200 grams, propyl carbinol 200 grams, dispersion agent 1 gram
Disperse preparation process:
According to said ratio, solvent is added vibrating mill, next adds dispersion agent, adds the ATO powder at last, and vibration disperseed 2 hours, can obtain favorable dispersity, and solids content is about 20% ATO dispersion liquid.
Embodiment 1～5
The preparation prescription of embodiment 1～5 aqueous polyurethane transparent heat insulating dope is as shown in table 1.During preparation, at first nano ATO (antimony-doped stannic oxide) slurry slowly is added drop-wise in the aqueous polyurethane, and uses magnetic stirrer.Get desired quantity of coating material then and evenly be applied to clean glass surface with line rod spreader or QZB wet film preparing device, after 30-50 minute, the rete self-hardening need not in oven for drying.
The prescription of table 1 embodiment 1～5 aqueous polyurethane transparent heat insulating dope and preparation information slip
| Component | Embodiment (weight percent %) | ||||
| 1 | 2 | 3 | 4 | 5 | |
| Aqueous polyurethane nano ATO slurry churning time is filmed the instrument rete self-hardening time | QZB wet film preparing device was 50 minutes in 40 60 (16%) 10 minutes | Line rod spreader was 38 minutes in 50 50 (20%) 15 minutes | Line rod spreader was 35 minutes in 75 25 (20%) 20 minutes | Line rod spreader was 30 minutes in 83 17 (20%) 25 minutes | QZB wet film preparing device was 30 minutes in 90 10 (16%) 30 minutes |
| Wet- | 100 | 80 | 60 | 20 microns | 400 microns |
The percentage ratio of nano ATO slurry bracket is the solid content number in the table.
Described aqueous polyurethane is DH-24, and Guangzhou perseverance too chemical industry company limited is produced.
Described nano powder slurry is the ATO nano pulp, alcohol, and solid content 10-30% wherein, particle size range is that 50-100nm can also can buy the product of being produced by Xi'an University of Architecture and Technology by method for preparing.
Described line rod spreader: Tianjin China looks technology ﹠ development Co. and produces; QZB wet film preparing device: Tianjin Yong Lida material-testing machine company limited produces.
The present invention has adopted UV-light-visible light-infrared spectrophotometer (HITACHI U-4100) that coated glass is carried out the sign of light thermal property, calculates the transmitance of the shading coefficient and the visible region of coated glass then.The result is as shown in table 2:
The visible light transmissivity of table 2 coated glass and shading coefficient
| Embodiment | Visible light transmissivity % | Shading coefficient (SC) |
| 0 1 2 3 4 | 89.32396 66.10754 63.05648 76.46811 87.42266 | 0.94271 0.68973 0.66762 0.76583 0.90839 |
| 5 | 71.73262 | 0.71618 |
In the table, the 6mm thick blank glass of embodiment 0# for not filming, the coated glass that other the 6mm blank glass of then serving as reasons same is painted.
The height of shading coefficient has determined the quality of coated glass thermal insulation, and SC is more little for shading coefficient, then energy-saving effect good more (thermal insulation is good); Shading coefficient SC is big more, then energy-saving effect poor more (thermal insulation is poor).Draw shading coefficient by experiment and reduce, reduce along with the increase of coating thickness along with the increase of the proportion of nano ATO slurry in the formulation for coating material.From the data of table 2 as can be seen, the blank glass shading coefficient of filming in the end is 0.94271, and the shading coefficient of the aqueous polyurethane transparent heat insulating dope rete of embodiment 1,2 preparations is less, SC
1=0.68973, SC
2=0.66762, than the shading coefficient of blank glass by a relatively large margin decline is arranged, the rete shading coefficient of embodiment 2 examples is than the decline 29.2% of blank glass, and effect of heat insulation is better.Though the rete shading coefficient low (thermal insulation is good) of the foregoing description preparation still has higher visible light transmissivity at visible region simultaneously, the transmitance of visible light all is higher than 60%, is up to 87.42266%.Embodiment 4 since in the prescription nano ATO slurry proportion low, and wet-film thickness only is 20 microns, so that shading coefficient descends than blank glass is little, but certain effect arranged.The thickness of filming by increase can reach effect preferably in addition.Though have only 10% as slurry proportion in the embodiment proportioning, its wet-film thickness is bigger, SC
5=0.71618, than blank glass by a relatively large margin decline is arranged also.
Heat in the sunlight is had an appointment and 49% is concentrated on infrared region, infrared light district transmitance descends and means the raising of heat-proof quality, Fig. 1 is the transmittance curve figure of the coated glass of embodiment 1～5 preparation, wherein the lead-in wire label of the curve among the figure is embodiment number, and No. 0 is the transmittance curve of blank glass.Can find out significantly that from Fig. 1 (coated glass of 700～2000nm) embodiment of the invention 1～5 all significantly decreases than the transmitance of blank glass, and visible region has higher visible light transmissivity at infrared region.
Embodiment 6-10
The prescription of table 3 embodiment 6～10 polyurethane lacquer transparent heat insulating dopes and preparation information slip
| Component | Embodiment (weight percent %) | ||||
| 6 | 7 | 8 | 9 | 10 | |
| The polyurethane lacquer nano ATO slurry diluent for the first time mixing time mixing time second time is filmed the instrument rete self-hardening | 40 60 (20%) 0 10 | 50 50 (16%) 0 10 | QZB wet film preparing device was 40 minutes in 66 33 (16%) 1 10 | 74 23 (16%) 10 | 87 8 (20%) 10 |
| Wet- | 100 | 100 microns | 200 microns | 400 microns | 400 microns |
The prescription of embodiment 6～10 polyurethane lacquer transparent heat insulating dopes is as shown in table 3, during preparation, at first polyurethane lacquer A, B component are mixed by 8: 5 weight percent, and stir 10 minutes (just stirring for the first time in the table) with agitator, the prescription that has in the whipping process need add a certain amount of thinner, specifically sees Table 3.Again nano ATO (tin-antiomony oxide) slurry slowly is added drop-wise in the mixed good polyurethane lacquer, and stir (just stirring the second time in the following table 3) with magnetic agitation, get desired quantity of coating material then and evenly be applied to clean glass surface with the wet film preparing device, after 30-50 minute, the rete self-hardening need not in oven for drying.
The percentage ratio of nano ATO slurry bracket is the solid content number in the table 3, and polyurethane lacquer is prepared by its A, B compositions in weight percentage at 8: 5, and the polyurethane lacquer described in the table 3 is what prepare in proportion.Described polyurethane lacquer is rising star's board polyurethane lacquer, is produced by osmanthus, Shenzhen coating associating Industrial Co., Ltd..Described thinner is rising star's board, is produced by osmanthus, Shenzhen coating associating Industrial Co., Ltd..
Described nano powder slurry is the ATO nano pulp, and alcohol is produced by Xi'an University of Architecture and Technology, solid content 10-30% wherein, and particle size range is 50-100nm.
Described line rod spreader is looked technology ﹠ development Co. by Tianjin China and is produced; QZB wet film preparing device is produced by Tianjin Yong Lida material-testing machine company limited.
Adopt UV-light-visible light-infrared spectrophotometer (HITACHI U-4100) that coated glass is carried out the sign of light thermal property, calculate the transmitance of the shading coefficient and the visible region of coated glass then, result such as following table:
The visible light transmissivity of table 4 coated glass and shading coefficient
| Embodiment | Visible light transmissivity % | Shading coefficient (SC) |
| 0 6 7 8 9 | 89.32396 70.79251 72.71346 66.74369 58.34385 | 0.94271 0.69977 0.72958 0.67593 0.60699 |
| 10 | 73.56305 | 0.74114 |
The 6mm thick blank glass of 0# for not filming among the embodiment, the coated glass that other the 6mm blank glass of then serving as reasons same is painted.
From the data of table 4 as can be seen, the blank glass shading coefficient of not filming is 0.94271, the shading coefficient of the polyurethane transparent thermal insulating coating coated glass of 6-10# embodiment preparation is than by a relatively large margin the decline of having of blank glass, as the shading coefficient SC of the coated glass of embodiment 9
9=0.60699 than blank glass SC
0=0.94271 decline 35.6% illustrates that its effect of heat insulation is better.Under the situation of identical coating thickness, embodiment 6 since nano ATO slurry solid content is high and in prescription proportion big, so its shading coefficient is low than the shading coefficient of embodiment 7.The coating thickness of embodiment 9 all is 400 microns, and the visible light transmissivity of coated glass is 58.3%, very near 60% than high visible light transmissivity, other then be higher than 66%, when shading coefficient reduces, higher visible light transmissivity is arranged, illustrate that its transparency is good.
Heat in the sunlight is had an appointment and 49% is concentrated on infrared region, infrared light district transmitance descends and means the raising of heat-proof quality, Fig. 2 is the transmittance curve figure of the coated glass of embodiment 6～10 preparations, wherein the lead-in wire label of the curve among the figure is embodiment number, and No. 0 is the transmittance curve of blank glass.Can find out significantly that from Fig. 2 (coated glass of 700～2000nm) embodiment of the invention 6～10 significantly decreases than the transmitance of blank glass, and visible region has higher visible light transmissivity at infrared region.
Claims (6)
1, a kind of synthesized polyurethane glass heat insulating paint is characterized in that, by weight percentage, comprises following component:
Synthesis of polyurethane resin 40-90%
Nano ATO slurry 10-60%
Thinner 0-5%
Described nano ATO solid content of slurry is 10-30%, and particle diameter is 50-100nm;
The coating wet-film thickness is 20～400 microns.
2, synthesized polyurethane glass heat insulating paint according to claim 1 is characterized in that, described synthesis of polyurethane resin is an aqueous polyurethane.
3, synthesized polyurethane glass heat insulating paint according to claim 1, it is characterized in that described synthesis of polyurethane resin is the butyrous polyurethane lacquer, form by polyurethane lacquer A and polyurethane lacquer B, during use, prepare in 8: 5 ratio by polyurethane lacquer A and polyurethane lacquer B.
4, synthesized polyurethane glass heat insulating paint according to claim 1 is characterized in that, described polyurethane lacquer dilutes by thinner, and described thinner is rising star's board polyurethane paint solvent.
5, the method for preparing the described synthesized polyurethane glass heat insulating paint of claim 1, it is characterized in that, by weight percentage, the nano ATO slurry that first solid content with 10-60% is 10-30% is added drop-wise in the aqueous polyurethane of 40-90%, and stirred 10-30 minute, get synthesized polyurethane glass heat insulating paint.
6, the method for preparing the described synthesized polyurethane glass heat insulating paint of claim 1, it is characterized in that, by weight percentage, earlier with 40-90% by polyurethane lacquer A, the B compositions in weight percentage based polyurethane varnish that makes up oil at 8: 5, with the mixing diluents of 0-5%, stirring 10～30 minutes subsequently, is that the nano ATO slurry of 10-30% slowly is added drop-wise in the mixture again with solid content, and with magnetic stirrer 10～30 minutes, synthesized polyurethane glass heat insulating paint.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101885943A (en) * | 2010-07-23 | 2010-11-17 | 富思特制漆（北京）有限公司 | Nano-glass heat insulation paint and preparation method thereof |
| CN101219859B (en) * | 2007-11-30 | 2011-09-28 | 华南理工大学 | Nano-oiliness ATO heat-insulating slurry, production method and uses thereof |
| CN101172778B (en) * | 2007-10-12 | 2011-12-28 | 烟台佳隆纳米产业有限公司 | Energy-saving heat-insulating environment-protection coating material for glass and producing method thereof |
| CN101289281B (en) * | 2008-06-13 | 2012-07-04 | 长沙科星纳米工程技术有限公司 | Insulating mold coating for high-transparent glass |
| CN102766379A (en) * | 2012-07-24 | 2012-11-07 | 南京理工大学常熟研究院有限公司 | Nano composite transparent heat-insulating coating and preparation method thereof |
| CN103102083A (en) * | 2013-02-26 | 2013-05-15 | 杭州电子科技大学 | Preparation method of nano antimony tin oxide transparent insulation film |
| CN104017474A (en) * | 2014-05-12 | 2014-09-03 | 南昌大学 | Nano ATO (tin antimony oxide)/TiO2 filler waterborne polyurethane heat-insulation clear paint |
| CN104830173A (en) * | 2015-04-13 | 2015-08-12 | 佛山科学技术学院 | Composite aqueous acrylic acid thermal-insulation coating material and preparation method thereof |
| CN105505174A (en) * | 2016-01-27 | 2016-04-20 | 柳州豪祥特科技有限公司 | Method for preparing ATO heat insulation film |
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2006
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101172778B (en) * | 2007-10-12 | 2011-12-28 | 烟台佳隆纳米产业有限公司 | Energy-saving heat-insulating environment-protection coating material for glass and producing method thereof |
| CN101219859B (en) * | 2007-11-30 | 2011-09-28 | 华南理工大学 | Nano-oiliness ATO heat-insulating slurry, production method and uses thereof |
| CN101289281B (en) * | 2008-06-13 | 2012-07-04 | 长沙科星纳米工程技术有限公司 | Insulating mold coating for high-transparent glass |
| CN101885943A (en) * | 2010-07-23 | 2010-11-17 | 富思特制漆（北京）有限公司 | Nano-glass heat insulation paint and preparation method thereof |
| CN101885943B (en) * | 2010-07-23 | 2012-12-26 | 富思特制漆（北京）有限公司 | Nano-glass heat insulation paint and preparation method thereof |
| CN102766379A (en) * | 2012-07-24 | 2012-11-07 | 南京理工大学常熟研究院有限公司 | Nano composite transparent heat-insulating coating and preparation method thereof |
| CN103102083A (en) * | 2013-02-26 | 2013-05-15 | 杭州电子科技大学 | Preparation method of nano antimony tin oxide transparent insulation film |
| CN104017474A (en) * | 2014-05-12 | 2014-09-03 | 南昌大学 | Nano ATO (tin antimony oxide)/TiO2 filler waterborne polyurethane heat-insulation clear paint |
| CN104830173A (en) * | 2015-04-13 | 2015-08-12 | 佛山科学技术学院 | Composite aqueous acrylic acid thermal-insulation coating material and preparation method thereof |
| CN105505174A (en) * | 2016-01-27 | 2016-04-20 | 柳州豪祥特科技有限公司 | Method for preparing ATO heat insulation film |
| CN105505174B (en) * | 2016-01-27 | 2018-04-24 | 柳州豪祥特科技有限公司 | A kind of method for preparing ATO thermal insulation films |
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