CN205941960U - Low -cost solar thin film speculum material - Google Patents
Low -cost solar thin film speculum material Download PDFInfo
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- CN205941960U CN205941960U CN201620654396.6U CN201620654396U CN205941960U CN 205941960 U CN205941960 U CN 205941960U CN 201620654396 U CN201620654396 U CN 201620654396U CN 205941960 U CN205941960 U CN 205941960U
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- Prior art keywords
- layer
- film
- reflecting mirror
- silver
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Abstract
The utility model discloses a low -cost solar thin film speculum material, it includes gum protection film, gum, substrate film, coating film reflection stratum and coating film protective layer, wherein the sensitizing treatment is done to the one side of substrate film, with the gum compaginates, the another side of substrate film is that smooth surface combines with the coating film reflection stratum, and the upper surface and the coating film protective layer in coating film reflection stratum combine, the coating film reflection stratum includes and is aluminium lamination, silver layer, magnesium fluoride layer in proper order by the triple -layer coating. The sunlight passes through the coating film protective layer and reachs the silver layer, sees through the coating film protective layer and reach helioplant or device after the silver layer reflection. The utility model discloses a low -cost solar thin film speculum material has solved ultraviolet blocking effectively and has blocked the problem with the steam on surface, owing to need not adopt the ultraviolet ray absorbent to use through long -term, its optical property still remains unchanged, thereby reduces reflection thin film materials's manufacturing cost by a wide margin, has improved life.
Description
Technical field
This utility model belongs to technical field of solar utilization technique, particularly to a kind of low-cost solar film reflecting mirror material
Material.
Background technology
At present, the popularization of solar thermal utilization depends on the cost of Solar Energy Heat Utilization System.Low close due to solar energy
Degree feature, produces high warm by solar energy, generally requires and sunlight is carried out with optically focused, and what current Technical comparing was ripe has slot type to gather
Photosystem, disc type condensation system and tower condenser system.Trench light condensing system is mainly used in solar light-heat power-generation and produces work
Industry steam, photo-thermal power generation temperature required more than 450 degree, and between the temperature required degree in 100-300 of industrial steam.Slot type at present
Condenser system, because its system cost is higher, leads to its system investments cost recovery longer it is difficult to by common institute of industrial undertaking
Accept.
The system cost of slot light collection is mainly made up of thermal-collecting tube, reflecting mirror and tracker etc..Reach high temperature, just
Need high light concentrating times, the reflecting mirror area of corresponding condenser system will be big, and reflecting mirror is by conducting oneself with dignity and wind load is made
The deformation becoming is little, and otherwise light can deviate from thermal-collecting tube, does not reach the purpose of light and heat collection.Reflecting mirror has glass-reflected at present
Mirror, aluminium base reflecting mirror and film reflecting mirror material, the production of glass reflector and aluminium base reflecting mirror needs to consume substantial amounts of fossil
The energy, the power consumption of film reflecting mirror material is much smaller；The problem that film reflecting mirror material is primarily present is its weather-proof sex chromosome mosaicism, its
Solve cost still very high.
Reflecting mirror Coating Materials is more suitable for the reflection of sunlight using silver than using the reflectance of aluminum, and the past mainly solves
Be organic film surface tear, weatherability and uvioresistant the problems such as, but these problems are in the aluminum reflector thin film in past
Part is obtained on product solve, as disclosed in United States Patent (USP) US4307150.Such as fluorine-contained film of new material now etc., its
Weatherability and anti-uv-ray can use 30 years, and surface Hardening processes material much it is easy to solve film surface
Scuffing problem.But silver coating has two problems, organic protective film on first silvering surface mostly exists or many
Or few air-and water-permeable rate, so can corrode silver layer so that the reflectance reduction on silvering surface, it two is silverskin to ultraviolet light
(324nm) there is a transmission window, as shown in Fig. 6 a- Fig. 9, Fig. 6 a, Fig. 7 a are reflectance curves, and corresponding transverse axis represents light wave
Long, the longitudinal axis represents reflectance, and what Fig. 6 b, Fig. 7 b, Fig. 8, Fig. 9 represented is transmittance curve, it can be seen that plating independent
In the case of silver, when silver layer reaches certain thickness, reflectance is invariable to reflectance, and pass through the ultraviolet light of silver layer
Near 324nm, its transmitance reduces wavelength with the thickening of silver layer, but its cost correspondingly increases, and effect is not
Good.The ultraviolet light of transmission can make the substrate organic membrane at the silver-colored back side and gum generation aging, and its result is to produce a lot of bubbles,
Destroy the planarization of minute surface.For example United States Patent (USP) US6989924B1 just discloses solution, and it mainly increases on silver-colored surface
Add the ultra-violet absorption thin film of layer, simultaneously work as anticorrosive and anti-ultraviolet purpose.As shown in figure 1, including gum protection
Film 1, this layer of protection when in use will be removed, gum layer 2, for by reflective film material, (in figure is not drawn with backboard
Go out) bonding, coating material 3, PET film etc., mirror layer 4 can be adopted, generally use aluminum or silver as coating material, pass through
It is evaporated in vacuo or the technique such as magnetron sputtering or coating completes, its thickness is typically in 80-120nm.Protective clear layer 5, uses
In blocking the corrosion to metal-plated film layer of air and steam, typically adopt the preferable material of weatherability gentle water blocking rate, for example
Fluorine-contained film, but the price of this thin film is very high, and also its price is directly proportional to thickness.For reduces cost, this layer is protected
Film is generally made up of more than 2 layers of Film laminated, as shown in Figures 2 and 3, common group of these thin film of protective clear layer 5a, 5b, 5c
Air water is become to block and the good protecting film of weatherability.For ultraviolet blocking-up, need to add ultraviolet suction in the material of 5b, 5c
Receive agent, but UV absorbent, after employing a period of time, film surface can be made to turn to be yellow, and affect the printing opacity of thin film
Property so that the optical property of reflecting mirror declines, and the cost of do so is still very high, and have has been even more than glass reflector
Cost.United States Patent (USP) US8398252 discloses the method preventing silver coating to be corroded when producing and use later, mainly
Plate one layer of 10nm titanium (Ti) or chromium (Cr) at the back side of silver coating, the thicker yttrium fluoride (YF3) of one layer of 5nm of plating on Ti, so that
Silver layer is easily deposited into the silver layer of densification on yttrium fluoride, the thick yttrium fluoride of plating 5nm above silver layer, then plates the thick fluorine of 85nm again
Change magnesium (MgF2), and other transparent compounds are plated on Afluon (Asta), have corrosiveness in order to hinder oxygen and aqueous vapor etc. to silver layer
Gas.But Ti or Cr layer is still very high to the transmitance of ultraviolet light it is difficult to cut-off ultraviolet light completely is organic to the substrate at the back side
Film and gum generation are aging, and the barrier layer of silver surface leans on the good effect of the method difficult to reach of vacuum coating completely, and this is
Because the thickness of vacuum coating is usually nano level, and general film plating layer is that have certain breathability, i.e. these platings
Film layer is not fine and close for gas.Under conditions of outdoor application, under conditions of temperature humidity is continually changing, silver
Layer still can corrode, thus reducing the performance of reflecting mirror.United States Patent (USP) US7612937B2 proposes copper is plated in the back side of silver
Carry out cutting off ultra-violet ray, but, still there are some ultra violet rays to pass through, because copper is not the best blocking material of ultraviolet.
The purpose of this utility model is to solve the defect that above-mentioned film reflecting mirror material exists, and provides a kind of low cost
Honest and clean, long service life, can effectively ultraviolet blocking-up and strengthen surface steam block problem solar energy film reflecting mirror material
Material.
Utility model content
The purpose of this utility model is to provide a kind of with low cost, long service life, ultraviolet barrier effect well and energy
Strengthen the solar energy film reflecting mirror material that the steam on surface blocks.
The technical solution of the utility model is：A kind of low-cost solar film reflecting mirror material, it includes consisting of：
Gum；
It is formed at the back adhesive protecting film of gum lower surface；
It is formed at the substrate membrane of this gum upper surface；
It is formed at the coated reflection layer of this substrate membrane upper surface；
It is formed at the plated film protective layer of this coated reflection layer upper surface；
Preferably, described coated reflection layer includes triple-layer coating, and the plated film being formed at substrate membrane upper surface is followed successively by aluminum
Layer, silver layer, magnesium fluoride layer.
Preferably, described coated reflection layer also includes titanium layer and yttrium fluoride layer, and described titanium layer is formed at described aluminium lamination upper table
Face, plates described silver layer on this titanium layer again, is coated with yttrium fluoride layer on described silver layer, then one layer of fluorination of plating on this yttrium fluoride layer
Magnesium layer.
Preferably, described coated reflection layer also includes titanium dioxide layer, and described titanium dioxide layer is formed at described Afluon (Asta)
On layer.
Preferably, described plated film protective layer includes two membranes, is compounded with one layer by heat and contains on described coated reflection layer
Fluorine transparent membrane or polymethyl ester methyl ester class thin film, in this fluorine-containing transparent membrane or polymethyl ester methyl ester class thin film again
It is coated with one layer of silicon oxide layer.
Preferably, described aluminium lamination, silver layer, magnesium fluoride layer, the thicknesses of layers of titanium layer, yttrium fluoride layer and titanium dioxide layer are
0.1nm-300nm.
Preferably, described magnesium fluoride layer thickness is 80nm-90nm, and described silver thickness is 80nm-90nm, and described aluminium lamination is thick
Spend for 60nm-80nm.
Preferably, described silver thickness is 50nm, and described aluminum layer thickness is 60nm.
Preferably, the lower surface of described substrate membrane does sensitized treatment, with described gum strong bonded, described substrate membrane
Upper surface be smooth surface, is combined with coated reflection layer, described plated film protective layer and coated reflection layer pass through hot be combined, ultrasonic
It is combined or adhesive bonding.
Preferably, described plated film protective layer is bonding by adhesive with film plating layer, and its adhesive is ethane-acetic acid ethyenyl
Ester copolymer or ethylene-vinyl acetate copolymer or other UV resistants irradiate material.
In sum, the beneficial effects of the utility model are：Low-cost solar reflective film material of the present utility model
Material efficiently solves the blocking-up of ultraviolet and the steam strengthening surface by the selection of triple-layer coating layer material species and thickness
Blocking-up problem, due to not needing to adopt UV absorbers, and through life-time service, its optical property still keeps constant,
Thus significantly reducing the manufacturing cost of reflective film material, improve service life.
This utility model is described in more detail below by embodiment.
Brief description
Fig. 1 be existing aluminize or silvered reflective thin film composition schematic diagram；
Fig. 2 is the composition schematic diagram that existing surface protection film is combined aluminizing of forming or silvered reflective thin film by two-layer；
Fig. 3 be existing surface protection film by three layers compound form aluminize or silvered reflective thin film composition schematic diagram；
Fig. 4 is a kind of composition schematic diagram of low cost solar energy film reflecting mirror material of the present utility model；
Fig. 5 is another composition schematic diagram of low cost solar energy film reflecting mirror material of the present utility model.
Fig. 6 a is that in solar energy film reflecting mirror material, silver plating thicknesses are the reflectance curve of 80nm.
Fig. 6 b is that in solar energy film reflecting mirror material, silver plating thicknesses are the transmittance graph of 80nm.
Fig. 7 a is that in solar energy film reflecting mirror material, silver plating thicknesses are the reflectance curve of 100nm.
Fig. 7 b is that in solar energy film reflecting mirror material, silver plating thicknesses are the transmittance graph of 100nm.
Fig. 8 is that in solar energy film reflecting mirror material, silver plating thicknesses are the transmittance graph of 120nm.
Fig. 9 is that in solar energy film reflecting mirror material, silver plating thicknesses are the transmittance graph of 200nm.
Figure 10 a is the reflectance wavelength that thickness is 40nm silver plating thicknesses 80nm again of aluminizing in solar energy film reflecting mirror material
Curve.
Figure 10 b is the absorbance wavelength that thickness is 40nm silver plating thicknesses 80nm again of aluminizing in solar energy film reflecting mirror material
Curve.
Figure 11 a is the reflectance wavelength that thickness is 40nm silver plating thicknesses 60nm again of aluminizing in solar energy film reflecting mirror material
Curve.
Figure 11 b is the absorbance wavelength that thickness is 40nm silver plating thicknesses 60nm again of aluminizing in solar energy film reflecting mirror material
Curve.
Figure 12 a is the reflectance wavelength that thickness is 60nm silver plating thicknesses 50nm again of aluminizing in solar energy film reflecting mirror material
Curve.
Figure 12 b is the absorbance wavelength that thickness is 60nm silver plating thicknesses 50nm again of aluminizing in solar energy film reflecting mirror material
Curve.
Wherein：What in Fig. 6 a to Figure 12 b, transverse axis represented is optical wavelength, and what the longitudinal axis represented is reflectance or absorbance.
Specific embodiment
In the way of embodiment combines accompanying drawing 4-5, this utility model is further described below.
As shown in Fig. 4 to Fig. 5, it illustrates the concrete composition of solar energy film reflecting mirror material of the present utility model, too
Sun can include back adhesive protecting film 1, gum 2, substrate membrane 3, coated reflection layer and plated film protective layer by film reflecting mirror material, its
Middle back adhesive protecting film 1 is pasted onto the lower surface of gum 2, and substrate membrane 3 is formed at the upper surface of gum 2, and coated reflection layer is formed
In the upper surface of substrate membrane 3, plated film protective layer is formed at the upper surface of this coated reflection layer.Gum 2 adopts acrylic pressure sensitive
Glue, substrate membrane 3 adopts PET film, the lower surface 3a of substrate membrane 3 carried out sensitized treatment in case with gum 2 strong bonded,
The surface of the upper surface 3b of substrate membrane is smooth.Back adhesive protecting film use when be removed, the gum exposing and its
He fixes substrate bonding.Can be compound by heat between plated film protective layer and coated reflection layer, or ULTRASONIC COMPLEX, or use adhesive
Bonding, adhesive can be the material that UV resistant irradiates, such as ethane-acetic acid ethyenyl (vinyl acetate) ester copolymer (EVA) etc.
Adhesive.
Coated reflection layer includes aluminium lamination, silver layer, magnesium fluoride layer three-decker successively, can also increase in this three-decker
Titanium layer and yttrium fluoride layer, the thickness of all film layers by vacuum coating such as aluminium lamination, silver layer, magnesium fluoride layer is in 0.1nm-300nm
Between.Preferred fluorinated magnesium thickness degree is optimal in 80nm-90nm, and existing preferable protective effect makes reflection efficiency at big angle again
Reduce less when spending.Preferably silver thickness is optimal in 80nm-90nm, and aluminum layer thickness is optimal in 60nm-80nm.
The concrete preparation process of solar energy film reflecting mirror material of the present utility model is：First pass through vacuum magnetic-control sputtering first
First the thick aluminium lamination 4a of one layer of 60nm is plated in the surface of the upper surface 3b of substrate membrane as ultraviolet insulating course, then plates one layer
10nm thick titanium layer (not shown) on this aluminium lamination, so that ensuing silver coating is finer and close, the thickness of silver coating 4b
Spend for 80nm, become reflecting layer, the thick yttrium fluoride (not shown) of one layer of 5nm is plated on silver layer 4b again, then plates one layer again
The thick magnesium fluoride layer 4c of 85nm, as protective layer, passes through hot being combined afterwards and is attached to one layer 25 microns of fluorine-containing transparent membrane 5
The surface of magnesium fluoride layer 4c, as plated film protective layer, in order to strengthen the resistance to marring of plated film protective layer and improve further
Its steam blocks performance, plates one layer of silicon oxide layer 5b on the surface of fluorine-containing transparent membrane 5 again by vacuum magnetic-control sputtering.
As shown in Figure 10 a, Figure 11 a and Figure 12 a, that reflects silver plating thicknesses reduce and aluminize thickness increase when, reflectance
Substantially constant, as shown in Figure 10 b, Figure 11 b and Figure 12 b, reflect aluminum layer thickness increase, the 324nm wavelength of transmission and its near
The situation that the uv transmittance of wavelength substantially reduces, thickness of aluminizing is 60nm, silver plating thicknesses in 50nm about when, reach
Comparatively ideal effect, now reflectance highest, and the absorbance of ultraviolet light is minimum, substantially completely block.When silver coating reaches
When 80nm is thick, increase less than one thousandth, reflectance has reached maximum, is further added by the thickness of silver layer, to reflectance no tribute again
Offer.The ultraviolet that at this moment Figure 12 b reflects blocks completely, and Figure 12 a reflects sun luminous reflectance and thick silver layer now
The reflecting effect of reflecting mirror is identical.Sunlight passes through plated film protective layer and reaches silver layer, passes through plated film protective layer after silver layer reflection
Reach helioplant or device.
This utility model is used as ultraviolet light insulating course by increasing by one layer of aluminium film between silver layer and substrate membrane, due to having
This layer, the thickness of silver layer can suitably reduce so that comprehensive coating cost silver-plated with monolayer (120nm) close, in silver
One layer of magnesium fluoride layer of plated surface of layer can be significantly increased steam and block performance, plate one again in the outside of plated film protective film simultaneously
Layer silicon oxide layer, finally makes whole reflective film material reach the sufficiently long life-span in outdoor application.Due to not adopting purple
Outer light absorber, through life-time service, its optical property still keeps constant.
In this utility model, aluminium lamination is mainly the ultraviolet light blocking through described silver layer, therefore can have blocking-up with other
The metal of ultraviolet light or compound substitute, or multiple layers of different materials combines to reach with more preferable ultraviolet light barrier effect or to carry
The quality of high reflection silver layer, such as plate one layer of titanium so that silver layer deposition is easy and fine and close after aluminizing again.Described magnesium fluoride layer
Mainly block further oxygen through plated film protective layer, aqueous vapor etc. on silver layer performance influential micro-molecular gas, therefore
Can have, with other, the printing opacity compound replacement that preferable aqueous vapor blocks performance for one or more, such as first plate one on silver layer
Layer yttrium fluoride, its thickness is 5nm, then plates Afluon (Asta) again, so so that magnesium fluoride layer is finer and close, or employing from
Sub- assisted deposition is so that magnesium fluoride layer is finer and close, and can plate layer of titanium dioxide on Afluon (Asta) again.
The method that the preparation method of this utility model thin-film material includes vacuum coating, the method is including but not limited to true
Electricity consumption resistance evaporation evaporation, electron gun evaporation, sputtering or the process meanses such as magnetron sputtering, Ion Aided Film Coating in cavity body.Preferably
Vacuum coating method adopts magnetically controlled sputter method, is more beneficial for the weatherability of substrate and the interface that connects of metal level.Can also adopt
With magnetically controlled sputter method and use Ion Aided Film Coating, the weatherability of thin film so that thin film is finer and close, can be increased considerably.
Its effect of transparent coating protective layer of the present utility model is that aqueous vapor blocks, and can be that thin film is constituted, for example, contain
More preferably or cost is lower with forming properties for fluorine film or polymethyl ester methyl ester class thin film or plural layers composition
Aqueous vapor barrier layer.And the outer surface of plated film protective layer can increase the film layer of other functions, such as surface dirt-resistant self-cleaning
Property, resistance to marring, further enhance steam barrier of thin film etc..
To sum up, solar energy reflection thin-film material of the present utility model is not limited to the structure of above-described embodiment, can carry out many
Plant modification.In a word, both falling within the range of this utility model without departing from all improvement in this utility model scope.
Claims (9)
1. a kind of low-cost solar film reflecting mirror material it is characterised in that：Including consisting of：
Gum；
It is formed at the back adhesive protecting film of gum lower surface；
It is formed at the substrate membrane of this gum upper surface；
It is formed at the coated reflection layer of this substrate membrane upper surface；
It is formed at the plated film protective layer of this coated reflection layer upper surface.
2. low-cost solar film reflecting mirror material according to claim 1 is it is characterised in that described coated reflection layer
Including triple-layer coating, the plated film being formed at substrate membrane upper surface is followed successively by aluminium lamination, silver layer, magnesium fluoride layer.
3. low-cost solar film reflecting mirror material according to claim 2 is it is characterised in that described coated reflection layer
Also include titanium layer and yttrium fluoride layer, described titanium layer is formed at described aluminium lamination upper surface, described silver layer is plated on this titanium layer, in institute again
State and yttrium fluoride layer is coated with silver layer, then one layer of magnesium fluoride layer is plated on this yttrium fluoride layer.
4. low-cost solar film reflecting mirror material according to claim 3 is it is characterised in that described coated reflection layer
Also include titanium dioxide layer, described titanium dioxide layer is formed on described magnesium fluoride layer.
5. low-cost solar film reflecting mirror material according to claim 1 is it is characterised in that described plated film protective layer
Including two membranes, described coated reflection layer is compounded with one layer of fluorine-containing transparent membrane or polymethyl ester methyl ester class by heat
Thin film, is coated with one layer of silicon oxide layer again in this fluorine-containing transparent membrane or polymethyl ester methyl ester class thin film.
6. low-cost solar film reflecting mirror material according to claim 4 it is characterised in that described aluminium lamination, silver layer,
Magnesium fluoride layer, the thicknesses of layers of titanium layer, yttrium fluoride layer and titanium dioxide layer are 0.1nm-300nm.
7. low-cost solar film reflecting mirror material according to claim 2 is it is characterised in that described Afluon (Asta) thickness
Spend for 80nm-90nm, described silver thickness is 80nm-90nm, described aluminum layer thickness is 60nm-80nm.
8. low-cost solar film reflecting mirror material according to claim 1 is it is characterised in that described substrate membrane
Lower surface does sensitized treatment, and with described gum strong bonded, the upper surface of described substrate membrane is smooth surface, with coated reflection
Layer combines, and described plated film protective layer passes through hot compound, ULTRASONIC COMPLEX with coated reflection layer or adhesive is bonding.
9. low-cost solar film reflecting mirror material according to claim 1 is it is characterised in that described plated film protective layer
Bonding by adhesive with film plating layer, its adhesive is vinyl-vinyl acetate copolymer or ethylene-vinyl acetate copolymerization
Thing or other UV resistants irradiate material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620654396.6U CN205941960U (en) | 2016-06-28 | 2016-06-28 | Low -cost solar thin film speculum material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620654396.6U CN205941960U (en) | 2016-06-28 | 2016-06-28 | Low -cost solar thin film speculum material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205941960U true CN205941960U (en) | 2017-02-08 |
Family
ID=57929826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620654396.6U Withdrawn - After Issue CN205941960U (en) | 2016-06-28 | 2016-06-28 | Low -cost solar thin film speculum material |
Country Status (1)
| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105929471A (en) * | 2016-06-28 | 2016-09-07 | 邓运明 | Low-cost solar film reflector material |
| CN110488403A (en) * | 2019-09-04 | 2019-11-22 | 东莞市利锦电子有限公司 | A kind of reflector plate and its processing technology of stainless steel high reflectance |
-
2016
- 2016-06-28 CN CN201620654396.6U patent/CN205941960U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105929471A (en) * | 2016-06-28 | 2016-09-07 | 邓运明 | Low-cost solar film reflector material |
| CN105929471B (en) * | 2016-06-28 | 2019-01-29 | 邓运明 | A kind of low-cost solar film reflecting mirror material |
| CN110488403A (en) * | 2019-09-04 | 2019-11-22 | 东莞市利锦电子有限公司 | A kind of reflector plate and its processing technology of stainless steel high reflectance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170208 Effective date of abandoning: 20190129 |