CN105238091A - Solar energy absorbing film and preparing method thereof - Google Patents
Solar energy absorbing film and preparing method thereof Download PDFInfo
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- CN105238091A CN105238091A CN201510773618.6A CN201510773618A CN105238091A CN 105238091 A CN105238091 A CN 105238091A CN 201510773618 A CN201510773618 A CN 201510773618A CN 105238091 A CN105238091 A CN 105238091A
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Abstract
The invention discloses a solar energy absorbing film and a preparing method thereof. The solar energy absorbing film is prepared from, by weight, 1-5 parts of nano-magnetic iron powder, 10-15 parts of nano-manganese oxide powder, 3-8 parts of nano-titanium powder, 5-10 parts of nanosilicon dioxide powder, 1-5 parts of nano-chromic oxide powder, 10-15 parts of nano-cuprous oxide powder, 1-3 parts of auxiliaries, 30-50 parts of inorganic composite ceramic resin, 30-50 parts of xylene, 10-20 parts of butyl acetate and 5-10 parts of ethanediol. The film prepared with the raw materials is higher in weather resistance and resistant to salt mist, high temperature and ultraviolet aging, environment friendliness is realized, and the problem of high energy consumption of the production technology is solved. Materials are evenly deposited on the surface of a base material with the spray method, the preparing method is simple, the thickness of the prepared solar energy absorbing film is smaller than 800 nm, the absorption ratio of the prepared film is larger than 95%, and infrared heat emission ratio is smaller than 10%.
Description
Technical field
The present invention relates to a kind of absorbing film, particularly a kind of solar absorbing film, also relate to above-mentioned preparation method.
Background technology
Along with the acceleration of Development of China's Urbanization, plate solar collector is because more and more receiving the favor of human consumer with the integrated perfect adaptation of building.Solar energy absorbing membranous layer is as the core component of heat collector, and its performance directly affects result of use and the life-span of whole heat collector.Rete mainly contains paint film, plating rete and magnetron sputtering rete in the market.But, paint film in the market generally adopts organic coating, as black acrylic resin, black epoxy etc., because have employed the binding agent of common resin material as rete, therefore can cause: 1. rete weathering resistance is poor, there is rete efflorescence and discolouration phenomena, 2. be the common black filler cartridge as rete due to what adopt, therefore the selectivity of rete is poor, and then causes the heat emission of rete higher than very; Plating rete preparation technology pollutes comparatively large, can not meet the demand to environment protection; Magnetron sputtering rete producing apparatus is expensive, and the salt fog resistance ability of rete is very undesirable, of long duration easily occurs rete obscission, affects the normal use of heat collector.
Summary of the invention
Technical problem to be solved by this invention is for the deficiencies in the prior art, provides a kind of and has stronger weathering resistance and the high solar absorbing film of specific absorption.
Another technical problem to be solved by this invention there is provided the preparation method of above-mentioned absorbing film.
Technical problem to be solved by this invention is realized by following technical scheme, and the present invention is a kind of solar absorbing film, is characterized in, it is made up of the raw material of following weight ratio:
Nano-magnetic iron powder 1 ~ 5; Nanometer titanium dioxide manganese powder 10 ~ 15;
Nano titanium powder 3 ~ 8; Nano-silica powder 5 ~ 10;
Nano oxidized chromium powder 1 ~ 5; Nano cuprous oxide powder 10 ~ 15;
Auxiliary agent 1 ~ 3; Inorganic compound ceramic resin 30 ~ 50;
Dimethylbenzene 30 ~ 50; Butylacetate 10 ~ 20; Ethylene glycol 5 ~ 10.
Solar absorbing film of the present invention, the described auxiliary agent at least one that to be auxiliary agent be in ceramic flow agent, defoamer, dispersion agent.
Described ceramic flow agent, defoamer and inorganic compound ceramic resin are that any one commercially available in prior art is applicable to ceramic flow agent of the present invention, defoamer and inorganic compound ceramic resin, such as Shanghai Jun Shen Industrial Co., Ltd., address: No. 2, Lane 117, store road, Shanghai Jinshan Feng Jing Town, phone: 021-39651656, the commodity of production are called the product of ceramic flow agent-S165, defoamer-N160 and inorganic compound ceramic resin F601.
Described dispersion agent is that any one commercially available in prior art is applicable to dispersion agent of the present invention, and the commodity as the production of German Bi Ke chemical company are called the product of dispersant B YK-2150.
Solar absorbing film of the present invention, it is made up of the raw material of following weight ratio:
Nano-magnetic iron powder 2; Nanometer titanium dioxide manganese powder 12;
Nano titanium powder 5; Nano-silica powder 5;
Nano oxidized chromium powder 2; Nano cuprous oxide powder 10;
Auxiliary agent 2; Inorganic compound ceramic resin 35;
Dimethylbenzene 35; Butylacetate 10; Ethylene glycol 6.
The invention also discloses a kind of preparation method of the solar absorbing film as described in above scheme, be characterized in, its step is as follows:
(1) preparation of film material: take above-mentioned raw materials in proportion, puts into ball-milling dispersion machine and carries out Ball milling 1 ~ 3 hour, stand-by;
(2) base material treatment: get the base material that thickness is 0.3 ~ 0.4mm, put in metal degreasing agent and soak 20 ~ 40 seconds, rear taking-up deionized water rinsing is clean, then puts into passivating solution and carry out passivation, passivation time is 20 ~ 40 seconds, and rear deionized water rinsing is dried stand-by;
(3) Film preparation: use spraying method, is deposited on the film material that step (1) is obtained on the substrate surface handled well and forms rete, the thickness≤800nm of rete;
(4) rete hot setting: the rete prepared is carried out hot setting and remove solvent ethylene glycol and dimethylbenzene and butylacetate, obtain product, wherein high temperature curing process is: solidification value be 80 ~ 120 DEG C solidification 4 ~ 6 minutes or solidification value be 150 ~ 180 DEG C solidification 4 ~ 6 minutes or solidification value be 200 ~ 250 DEG C solidification 14 ~ 16 minutes.
In preparation method of the present invention, described base material is aluminium base or Copper base material.
Above-mentioned passivating solution is that any one commercially available in prior art is applicable to Aluminum passivator of the present invention, and the commodity produced as Shanghai Nuo Tong metal surface treatment technology company limited are called the product that passivator is NT_610.
Above-mentioned metal degreasing agent is that any one commercially available in prior art is applicable to aluminium metal degreasing agent of the present invention, and the commodity as the production of Dongguan Kai Meng process for treating surface company limited are called the product of KM0101 grease-removing agent.
Compared with prior art, adopt the rete that raw material of the present invention is obtained, can improve the weathering resistance of rete, rete is salt spray resistance not only, high temperature resistant, has resistance to UV aging, solves environmental protection and the highly energy-consuming problem of production technique simultaneously.What the present invention adopted spraying method to make homogenize material is deposited on substrate surface, and preparation method is simple, and obtained solar energy absorbing membranous layer thickness is less than 800nm, and obtained rete specific absorption is greater than 95%, and infra-red heat transmitting ratio is less than 10%.
Embodiment
Below further describe concrete technical scheme of the present invention, so that those skilled in the art understands the present invention further, and do not form the restriction to its right.
Embodiment 1, a kind of solar absorbing film, it is made up of the raw material of following weight ratio:
Nano-magnetic iron powder 1; Nanometer titanium dioxide manganese powder 10;
Nano titanium powder 3; Nano-silica powder 5;
Nano oxidized chromium powder 1; Nano cuprous oxide powder 10;
Auxiliary agent 1; Inorganic compound ceramic resin 30;
Dimethylbenzene 30; Butylacetate 10; Ethylene glycol 5.
Embodiment 2, a kind of solar absorbing film, it is made up of the raw material of following weight ratio:
Nano-magnetic iron powder 5; Nanometer titanium dioxide manganese powder 15;
Nano titanium powder 8; Nano-silica powder 10;
Nano oxidized chromium powder 5; Nano cuprous oxide powder 15;
Auxiliary agent 3; Inorganic compound ceramic resin 50;
Dimethylbenzene 50; Butylacetate 20; Ethylene glycol 10.
Embodiment 3, a kind of solar absorbing film, it is made up of the raw material of following weight ratio:
Nano-magnetic iron powder 2; Nanometer two manganese dioxide powder 12;
Nano titanium powder 5; Nano-silica powder 5;
Nano oxidized chromium powder 2; Nano cuprous oxide powder 10;
Auxiliary agent 2; Inorganic compound ceramic resin 35;
Dimethylbenzene 35; Butylacetate 10; Ethylene glycol 6.
Embodiment 4, in the solar absorbing film according to embodiment 1-3, at least one in described ceramic flow agent, defoamer, dispersion agent.
Embodiment 5, a kind of preparation method of the solar absorbing film as described in any one of embodiment 1-4, its step is as follows:
(1) preparation of film material: take nano-magnetic iron powder 5 parts respectively; Nanometer titanium dioxide manganese powder 15 parts; Nano titanium powder 8 parts; Nano-silica powder 10 parts; Nano oxidized chromium powder 5 parts; Nano cuprous oxide powder 15 parts; Pottery flow agent 3 parts; Inorganic compound ceramic resin 50 parts; Dimethylbenzene 50 parts; Butylacetate 20 parts; Ethylene glycol 10 parts; Put into ball-milling dispersion machine Ball milling 1 hour, stand-by;
(2) base material treatment: get the aluminium base print that thickness is 0.3mm, puts in metal degreasing agent and soaks 30 seconds, and rear taking-up deionized water rinsing is clean, then puts into passivating solution and carry out passivation, and passivation time is 30 seconds, and rear deionized water rinsing is dried stand-by;
(3) Film preparation: use spraying method, the film material that step (1) is obtained puts into spray gun, regulates spraying flow, makes deposition of material form rete on the substrate surface handled well, the thickness≤800nm of rete;
(4) rete hot setting: the rete prepared is carried out hot setting and remove solvent ethylene glycol and dimethylbenzene and butylacetate, obtain product, wherein high temperature curing process is: solidification value is 150 ~ 180 DEG C of solidifications 5 minutes.
By UV-3600 spectrophotometer measurement rete specific absorption after being taken out by rete after solidification, this rete specific absorption is 0.95.Measure rete infrared emission ratio by infrared emission than determinator, this rete transmitting ratio is 0.10.
Embodiment 6, a kind of preparation method of the solar absorbing film as described in any one of embodiment 1-4, its step is as follows:
(1) preparation of film material: take nano-magnetic iron powder 2 parts respectively; Nanometer titanium dioxide manganese powder 12 parts; Nano titanium powder 5 parts; Nano-silica powder 5 parts; Nano oxidized chromium powder 2 parts; Nano cuprous oxide powder 10 parts; Defoamer 2 parts; Inorganic compound ceramic resin 35 parts; Dimethylbenzene 35 parts; Butylacetate 10 parts; Ethylene glycol 6 parts; Put into ball-milling dispersion machine Ball milling 3 hours, stand-by;
(2) base material treatment: get the aluminium base print that thickness is 0.4mm, puts in metal degreasing agent and soaks 40 seconds, and rear taking-up deionized water rinsing is clean, then puts into passivating solution and carry out passivation, and passivation time is 40 seconds, and rear deionized water rinsing is dried stand-by;
(3) Film preparation: use spraying method, the film material that step (1) is obtained puts into spray gun, regulates spraying flow, makes deposition of material form rete on the substrate surface handled well, the thickness≤800nm of rete;
(4) rete hot setting: the rete prepared is carried out hot setting and remove solvent ethylene glycol and dimethylbenzene and butylacetate, obtain product, wherein high temperature curing process is: solidification value is 200 ~ 250 DEG C of solidifications 15 minutes.
Embodiment 7, a kind of preparation method of the solar absorbing film as described in any one of embodiment 1-4, its step is as follows:
(2) preparation of film material: take nano-magnetic iron powder 2.5 parts respectively; Nanometer titanium dioxide manganese powder 7.5 parts; Nano titanium powder 4 parts; Nano-silica powder 5 parts; Nano oxidized chromium powder 2.5 parts; Nano cuprous oxide powder 7.5 parts; Defoamer 2 parts; Inorganic compound ceramic resin 25 parts; Dimethylbenzene 25 parts; Butylacetate 12 parts; Ethylene glycol 5 parts; Put into ball-milling dispersion machine Ball milling 2.5 hours, stand-by;
(2) base material treatment: get the aluminium base print that thickness is 0.35mm, puts in metal degreasing agent and soaks 35 seconds, and rear taking-up deionized water rinsing is clean, then puts into passivating solution and carry out passivation, and passivation time is 35 seconds, and rear deionized water rinsing is dried stand-by;
(3) Film preparation: use spraying method, the film material that step (1) is obtained puts into spray gun, regulates spraying flow, makes deposition of material form rete on the substrate surface handled well, the thickness≤800nm of rete;
(4) rete hot setting: the rete prepared is carried out hot setting and remove solvent ethylene glycol and dimethylbenzene and butylacetate, obtain product, wherein high temperature curing process is: solidification value is 120 ~ 150 DEG C of solidifications 10 minutes.
Spraying method is prepared rete advantage and is illustrated:
The preparation method preparing solar energy heat absorbing rete at present main has: magnetron sputtering, plating, anodic oxidation, the above-mentioned several method of spraying, and the rete of production respectively has quality, and salient features contrast is as following table one:
Can find rete prepared by spraying method by above table, absorption value can reach 0.95, and transmitted value is 0.1.Optical property absorption value in several preparation method is comparatively outstanding, and transmitted value comparatively magnetron sputtering is slightly poor, but excellent in other several methods.Other salt fog comprehensive, energy-conservation, the aspects such as investment compare, and the maximum advantage of the rete prepared of spraying method has very strong salt fog resistance ability.Found by the salt fog resistance simultaneous test of several rete, rete product performance after 48H salt-fog test prepared by spraying method are substantially unchanged, and other products all have decay in various degree, the rete that (comparative test result sees the following form two) therefore utilizes spraying method to prepare runs for product long-term stability and provides safeguard.
Claims (5)
1. a solar absorbing film, is characterized in that, it is made up of the raw material of following weight ratio:
Nano-magnetic iron powder 1 ~ 5; Nanometer titanium dioxide manganese powder 10 ~ 15;
Nano titanium powder 3 ~ 8; Nano-silica powder 5 ~ 10;
Nano oxidized chromium powder 1 ~ 5; Nano cuprous oxide powder 10 ~ 15;
Auxiliary agent 1 ~ 3; Inorganic compound ceramic resin 30 ~ 50;
Dimethylbenzene 30 ~ 50; Butylacetate 10 ~ 20; Ethylene glycol 5 ~ 10.
2. solar absorbing film according to claim 1, is characterized in that, described auxiliary agent is at least one in ceramic flow agent, defoamer, dispersion agent.
3. solar absorbing film according to claim 1 and 2, is characterized in that, it is made up of the raw material of following weight ratio:
Nano-magnetic iron powder 2; Nanometer titanium dioxide manganese powder 12;
Nano titanium powder 5; Nano-silica powder 5;
Nano oxidized chromium powder 2; Nano cuprous oxide powder 10;
Auxiliary agent 2; Inorganic compound ceramic resin 35;
Dimethylbenzene 35; Butylacetate 10; Ethylene glycol 6.
4. a preparation method for the solar absorbing film as described in any one of claim 1-3, is characterized in that, its step is as follows:
(1) preparation of film material: take above-mentioned raw materials in proportion, puts into ball-milling dispersion machine and carries out Ball milling 1 ~ 3 hour, stand-by;
(2) base material treatment: get the base material that thickness is 0.3 ~ 0.4mm, put in metal degreasing agent and soak 20 ~ 40 seconds, rear taking-up deionized water rinsing is clean, then puts into passivating solution and carry out passivation, passivation time is 20 ~ 40 seconds, and rear deionized water rinsing is dried stand-by;
(3) Film preparation: use spraying method, is deposited on the film material that step (1) is obtained on the substrate surface handled well and forms rete, the thickness≤800nm of rete;
(4) rete hot setting: the rete prepared is carried out hot setting and remove solvent ethylene glycol and dimethylbenzene and butylacetate, obtain product, wherein high temperature curing process is: solidification value be 80 ~ 120 DEG C solidification 4 ~ 6 minutes or solidification value be 150 ~ 180 DEG C solidification 4 ~ 6 minutes or solidification value be 200 ~ 250 DEG C solidification 14 ~ 16 minutes.
5. preparation method according to claim 4, is characterized in that, described base material is aluminium base or Copper base material.
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Cited By (4)
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| CN108168119A (en) * | 2017-12-26 | 2018-06-15 | 日出东方太阳能股份有限公司 | Solar energy heat absorbing film layer and preparation method thereof and solar absorber plate and preparation method thereof |
| CN108504946A (en) * | 2018-04-04 | 2018-09-07 | 陕西理工大学 | A kind of high performance magnetic material |
| CN109237828A (en) * | 2017-05-08 | 2019-01-18 | 德州金奈尔新材料科技有限公司 | The highly selective heat absorption heating film of metal atomic layer depositing solar and preparation method |
| CN109945532A (en) * | 2019-01-14 | 2019-06-28 | 山东满歌润电热电器有限公司 | A kind of solar energy black film pipe and black film having excellent heat absorption heat exchange function |
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| CN109945532A (en) * | 2019-01-14 | 2019-06-28 | 山东满歌润电热电器有限公司 | A kind of solar energy black film pipe and black film having excellent heat absorption heat exchange function |
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| CN105238091B (en) | 2018-04-24 |
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Address after: 222000 199 Yingzhou South Road, Haizhou District, Lianyungang, Jiangsu Patentee after: Sunrise Oriental Holdings Co., Ltd. Address before: 222000 199 Yingzhou South Road, Haizhou District, Lianyungang, Jiangsu Patentee before: Richu Dongfang Solar Energy Co., Ltd. |
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