CN101786803B - Method for coating multiple compound high anti-reflection films on inner surface and outer surface of glass tube with length/aperture ratio greater than 30 - Google Patents

Method for coating multiple compound high anti-reflection films on inner surface and outer surface of glass tube with length/aperture ratio greater than 30 Download PDF

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CN101786803B
CN101786803B CN2010101221234A CN201010122123A CN101786803B CN 101786803 B CN101786803 B CN 101786803B CN 2010101221234 A CN2010101221234 A CN 2010101221234A CN 201010122123 A CN201010122123 A CN 201010122123A CN 101786803 B CN101786803 B CN 101786803B
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sio
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colloidal sol
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CN101786803A (en
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郭廷玮
俞科
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ROYAL TECH CSP LIMITED
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Changzhou Longteng Solar Energy Heating Equipment Co Ltd
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Abstract

The invention discloses a method for coating multiple compound high anti-reflection films on the inner surface and the outer surface of a glass tube with a length/aperture ratio greater than 30. In a compound high anti-reflection glass tube prepared by the method, at least one TiO2 film and at least one SiO2 film are respectively formed. The film coating method comprises the steps of sol preparation by a hydrolysis method, film preparation by a pulling method and low-temperature hot drying coating aftertreatment. The invention has the characteristics of simple and convenient method, good film coating quality, energy consumption saving, long service life of finished products, and the like, and provides technical supports for channel type solar thermal generating equipment.

Description

Length/aperture ratio is greater than the method for 30 the compound high antireflection film of Glass tubing surfaces externally and internally coating multiple
Technical field
The present invention relates to the method for a kind of length/aperture ratio greater than 30 the compound high antireflection film of Glass tubing surfaces externally and internally coating multiple, what be specifically related to is a kind of coating method that is used for length L 4000 * aperture D115mm heat collecting glass tube high antireflection film of trough type solar power generation technical equipment.Belong to sun power and utilize equipment technology.
Background technology
High antireflection film according to the invention is a kind ofly can effectively strengthen filming of sunshine transmitance.Said thicknesses of layers is generally in 50~200nm scope.
Heat collecting glass tube involved in the present invention is a kind of passage of heated medium water of trough type solar power generation technical equipment.At the outside sun power (light) that focuses on by efficient reflection silver mirror accepted of said Glass tubing, make the WATER AS FLOW MEDIUM supercharging of vaporizing within a short period of time, finally drive the turbo-generator generating by HP steam.
This shows that the important factor of decision trough type solar power generation efficient except the reflectivity of reflection silver mirror, is exactly the sun power transmitance of said Glass tubing.In order effectively to improve said transmitance, people improve diligently improve glass tube self transmittance in, researched and developed and allly can effectively reduce sun power (light) reflectivity, improve the plated film of transmitance, such as TiO 2, SiO 2, MgF plated film or the like, and on the heat pipe of solar utilization technique equipment, obtained successful Application such as solar water heater.
Yet, be at length/aperture ratio greater than 30, for example length is 4000mm, and the aperture is the surfaces externally and internally of the circular glass pipe of D115mm, and the technical difficulty that is coated with high antireflection film in high quality is very big.Obviously adopt the thermolysis gunite; Chemical Vapor deposition process and magnetron sputtering method etc., for filming of such surface of deep hole, eventually can be owing to coating thickness is inhomogeneous; Sticking power between film and substrate is relatively poor is easy to break away from or the like quality problems, and powerless can't enforcement.
Colloidal sol---gel technique; Be a kind of with chemical precursor body hypothermia manufacturing ceramic membrane technology; It is compared with traditional high-temperature technology, and this technology can obtain higher purity and uniformity coefficient, simultaneously owing to be the form that combines with chemical bond between rete and matrix; Therefore coating is very firm, incrust.But result for retrieval shows; Prior arts such as Chinese patent publication number CN1761630A, CN1686891A, CN1588593A and CN1761626A; All be only to be confined on the transparency carrier; Adopt that colloidal sol---the whirl coating of gel method is coated with membrane technique, and at the membrane technique that is coated with of the Glass tubing surfaces externally and internally of said L4000 * D115mm super-large length aperture ratio, not seeing so far there is report.
Summary of the invention
The present invention aims to provide the method for a kind of length/aperture ratio that is specially adapted to the trough type solar power generation technical equipment greater than 30 the compound high antireflection film of Glass tubing surfaces externally and internally coating multiple, for development solar energy thermal-power-generating equipment provides technical support.
The present invention realizes the technical though of its purpose, the one, adopt compound anti-reflection membrane structure more than two layers, and with effective raising sunshine (ability) transmitance, effectively improve its work-ing life simultaneously; The 2nd, said rete is by TiO 2Film and SiO 2The compound composition of thin-film multilayer; The 3rd, colloidal sol---gel method lifts films in employing; At first make dipping in the perpendicular insertion colloidal sol of work piece and colloidal sol liquid level; Perpendicular upwards the lifting of work piece after will flooding then and colloidal sol liquid level filmed; Handle through the back low-temperature heat baking of filming again, thereby the nano level of accomplishing said Glass tubing surfaces externally and internally is filmed.
Above-mentioned colloidal sol---gel method lifts the basic skills of filming, and at first is dissolved in the solvent with metal inorganic salt or organometallic compound, at low temperatures the synthetic colloidal sol of liquid phase; Then base material (like Glass tubing) is inserted dipping in the colloidal sol; Base material behind the dipping upwards lifts with certain LV, and colloidal sol just is adsorbed on the base material, and forms very thin layer of gel through the gel process; After passing through the heating, drying of certain temperature again, just form the film of nanoparticle at substrate surface.The thickness of film can be controlled through dipping number of times that lifts and the LV that lifts.
In view of above-mentioned conception, the present invention realizes that the technical scheme of its purpose is:
A kind of length/aperture ratio adopts the high anti-reflection coated glass pipe of this method preparation greater than the method for 30 the compound high antireflection film of Glass tubing surfaces externally and internally coating multiple, comprises Glass tubing (1), at the high antireflection layer TiO of Glass tubing (1) surfaces externally and internally coating 2Thin film layer (2) and at the inside and outside TiO of pipe 2The SiO of thin film layer surface coated 2Thin film layer (3); Said TiO 2Thin film layer (2) and SiO 2Thin film layer (3) respectively has 1 layer at least; Work as TiO 2Thin film layer and SiO 2Thin film layer is more than 2 layers the time, then TiO 2Thin film layer and SiO 2The alternate layout of thin film layer; The coating method of said coated glass pipe comprises preparation TiO 2Colloidal sol and preparation SiO 2Colloidal sol prepares at interior colloidal sol, the film preparation and the aftertreatment of filming, and its innovative point is:
A, said TiO 2The colloidal sol preparation is to adopt the fractional hydrolysis method, and with the CP butyl(tetra)titanate, absolute ethyl alcohol and deionized water are raw material, are catalyzer with hydrochloric acid; In the acid and alkali-resistance container, add absolute ethyl alcohol successively, butyl(tetra)titanate, under the magnetic bar agitation condition, mix 30~40min after, add deionized water again, hydrochloric acid and absolute ethyl alcohol, 8~10h is stirred in sealing, makes TiO 2Colloidal sol, ageing is subsequent use at ambient temperature then;
B, said SiO 2The colloidal sol preparation is with the CP tetraethoxy, and absolute ethyl alcohol and deionized water are raw material, are catalyzer with hydrochloric acid, at room temperature fully mix through magnetic stirring apparatus and make SiO 2Colloidal sol, ageing is subsequent use at ambient temperature then;
C, said film preparation, be be cleaned, the said Glass tubing of exsiccant work piece floods TiO respectively 2Colloidal sol and SiO 2Colloidal sol, colloidal sol---the gel crystal pulling method is filmed in employing; Its equipment used is to ensure that the oscilaltion of said workpiece to be machined Glass tubing can not produce the device for coating that lifts of arbitrary bearing oscillation and shake; The LV that lifts of said work piece Glass tubing is controlled in 8~10cm/min scope;
D, the said aftertreatment of filming are that the heat baking of the slowly gentle slow cool down of intensification is handled; The work piece Glass tubing through the c step accomplish film after, put 15~20min purifying to dry in the air under the dustfree environment earlier, then under 80~100 ℃ of temperature condition, drying 25~35min, after naturally cool to room temperature;
E, said TiO 2Film and SiO 2Film, separately hocket through c, d two steps respectively.
Can be understood by above given technical scheme, compare with other several kinds said methods that prepare film, the present invention has the following advantages:
(1) method is easy, and equipment is simple, and production efficiency is high.
(2) be reflected in the solution and carry out, uniformity coefficient is high.Its polycomponent uniformity coefficient can reach molecular level or atom level.
(3) shape and the size requirements to processed object is low, is fit to very much the processing of filming of superdeep holes Glass tubing surfaces externally and internally.
(4) post-processing temperature of filming is low, under the temperature far below ceramic post sintering or glass melting, carries out the heat baking and handles, low carbon consumption, save energy.
(5) TiO 2With SiO 2The mutual solubility of laminated film interlayer is good, and cohesive strength is high, the long service life of finished product.
Here also need to prove, at TiO 2Colloidal sol prepares in the process, because the electronegativity energy of Ti is little than the electronegativity energy of Si, thereby the easier hydrolytic reactions of Ti.And forming TiO with hydrochloric acid catalysis 2In the colloidal sol process, because H +Hydrolysis to Ti has certain restraining effect, thereby can control the hydrolysis rate of titan-alkoxide through the adjustment pH value.
And the film preparation of said sol impregnation crystal pulling method, in order to produce the uniform film of thickness, viscosity that should be different according to colloidal sol is chosen the different Lies that lifts, and is coated with in the membrane process haveing suffered to lift, and must remain the stable and consistent property that lifts LV.Lift in the process of rising at the work piece Glass tubing; Accomplish that said Glass tubing and colloidal sol liquid level keep vertical, and all can not produce swing and shake, otherwise can cause coating thickness inhomogeneous in any one orientation; Rainbow phenomena can appear in film, and influences the quality of film.
Be coated with in the membrane process at crystal pulling method and since the work piece Glass tubing by the said clamper that lifts equipment along the linear guides oscilaltion, thereby can effectively avoid the swing in the arbitrary orientation of work piece left-right and front-back; And up and down issuable shake of work piece can be controlled work piece the constant of speed that move up and down through variable-frequency motor and realize.
Adopting dip-coating method to be coated with in the membrane process, pull rate is the key factor that influences thickness.Under lower pull rate; Simple linear polymer has when more its molecular orientation of chien shih arrange to be parallel to dip direction in the wet liquid film; Polymer molecule is less to the resistance of liquid return like this, and promptly the polymer molecule form is less to the influence of wet-film thickness, and the rete that therefore forms is thinner.And for pull rate faster; Because linear polymer molecule orientation has little time to be parallel to dip direction in the wet liquid film, hindered the backflow of liquid to a certain extent, thereby its formed film is thicker; Film quality is relatively poor, sometimes even can crack and peeling phenomenon.This shows that the present invention lifts at its dipping and is coated with in the membrane process, must strict control pull rate.More than given said pull rate 8~10cm/min, it is preferred to be that the present invention passes through to test repeatedly institute.
Lift at dipping and to be coated with in the membrane process, along with the lifting of work piece Glass tubing, said Glass tubing surfaces externally and internally absorption one deck dissolved glue film.Because the volatilization of water and organic solvent (absolute ethyl alcohol), dissolved glue film transfers gel-film rapidly to.And the clinging power between said gel-film and the Glass tubing matrix very a little less than.But gel-film in the low-temperature heat baking treating processes, between gel-film and Glass tubing matrix, will form chemical bond through bridging oxygen behind gluing, both are strengthened greatly mutual sticking action power.
In the back low-temperature heat baking treating processes of filming, some elemental substance if temperature is too high in the film can volatilize, and make formation film component deviation the stoichiometric equation of former calculating, this will influence the performance of film.
Common high-quality film must have stoichiometric equation accurately, therefore, how to dry by the fire in the treating processes in said low-temperature heat, prepares high-quality film with lower temperature, is the target that people pursue always.Simultaneously; Because said low-temperature heat baking treatment temp can reduce owing to the different stress that caused of the expansion of each layer film (composite package), and the tiny crack that brings; And the interface pollution that mutual diffusive migration caused of material between film and Glass tubing matrix, directly influence the raising of sunshine transmitance.
Film along with the continuous volatilization of water and organic solvent, because the effect of capillary tension makes the inner stress that produces of gel, causes gel volume to shrink in said heat baking treating processes, if it is too fast to heat up, then film is prone to produce tiny crack, even comes off.And adopt the gentle slow cool down that slowly heats up, can effectively reduce the generation of fine fisssure and internal stress, but this will directly influence production efficiency in actual production.For this reason, the present invention is through experiment repeatedly, the given high quality and the drying temperature and the time of high-level efficiency doulbe-sides' victory more than preferred.But be not limited to this.
The preferred said TiO of the present invention 2The mol ratio of colloidal sol raw material is: absolute ethyl alcohol: butyl(tetra)titanate: deionized water: hydrochloric acid=25: 1.0: 400: 0.75.
The preferred said SiO of the present invention 2The mol ratio of colloidal sol raw material is: absolute ethyl alcohol: tetraethoxysilance: deionized water: hydrochloric acid=20: 1.0: 4.0: 0.01.
In order effectively to improve sunshine of the present invention (ability) transmitance, the present invention adopts said TiO 2Film and SiO 2The mode of the compound coating of thin-film multilayer.Filming of said Glass tubing surfaces externally and internally is from inside to outside successively according to TiO 2Thin film layer and SiO 2The thin film layer coating, thus constitute TiO 2-SiO 2Two-layer compelx coating, or from inside to outside successively according to TiO 2Thin film layer, SiO 2Thin film layer and TiO 2The thin film layer coating, thus constitute TiO 2-SiO 2-TiO 2Three layers of compelx coating.But being not limited to this, can be compelx coating more than four layers.If represent SiO with l 2Film, represent TiO with h 2Film, then the hl representative is with dip-coating method separate application TiO 2, SiO 2Two coating films, and the hlh representative is with dip-coating method separate application TiO 2, SiO 2, TiO 2Three-layer coated, finished product first sample test result of the present invention shows that sunshine (ability) transmitance of hl two coating films can reach 96%, and three-layer coated sunshine (ability) transmitance of hlh can reach 97.5%.
After technique scheme was able to implement, the method that the present invention had was easy, and equipment is simple, and production efficiency is high, and coating thickness is even, and low-temperature heat baking energy consumption is low, and the rete cohesive strength is high, and characteristics such as finished product long service life are conspicuous.
Description of drawings
Fig. 1 is the structural representation of a kind of finished product coated glass of the present invention pipe.
Embodiment
Below description through embodiment, technical scheme of the present invention is described further.
One of embodiment: like accompanying drawing 1.
A kind of length/aperture ratio adopts the high anti-reflection coated glass pipe of this method preparation greater than the method for 30 the compound high antireflection film of Glass tubing surfaces externally and internally coating multiple, comprises Glass tubing (1), at the high antireflection layer TiO of Glass tubing (1) surfaces externally and internally separate application 2Thin film layer (2) and at the inside and outside TiO of pipe 2The SiO of thin film layer surface separate application 2Thin film layer (3); Said TiO 2Thin film layer (2) and SiO 2Thin film layer (3) respectively has 1 layer; The coating method of said coated glass pipe comprises preparation TiO 2Colloidal sol and preparation SiO 2Colloidal sol prepares at interior colloidal sol, the film preparation and the aftertreatment of filming, and its
A, said TiO 2Colloidal sol prepares, and measures 50 liters of absolute ethyl alcohols, 20 liters of butyl(tetra)titanates, and deionized water and hydrochloric acid are an amount of; Under the magnetic agitation condition, in container, add anhydrous nothing alcohol (part) successively, 20 liters of butyl(tetra)titanates; Mix and stir after 30 minutes, add deionized water (in batches adding), hydrochloric acid, absolute ethyl alcohol (remainder); Sealing was stirred after 8 hours, and ageing at room temperature a day is subsequent use, must handle through filtering when being used to film.
B, said SiO 2The colloidal sol preparation is to get tetraethoxy (TEOS), absolute ethyl alcohol (EtoH), hydrochloric acid (HCl), polyoxyethylene glycol (PEG), deionized water (H 2O), by mole TEOS: H 2O: HCl: EtoH=1: 2: 0.004: 24 ratio fully stirs carried out prehydrolysis in 1 hour.Add polyoxyethylene glycol (PEG) again, and make ratio n (the PEG)/n (TEOS) of polyoxyethylene glycol (PEG) and tetraethoxy (TEOS) molar weight=50: 50, and it is subsequent use to continue to stir back ageing in 1 hour half 2 days.Need when being used to film to handle after filtration.
C, said film preparation and the aftertreatment of filming thereof be, said work piece Glass tubing is placed on the homemade large-scale pulling machine after through ultrasonic cleaning, oven dry, adopts crystal pulling method to film, Glass tubing at TiO 2Flood in the colloidal sol, upwards lift afterwards, speed is 8~9cm/min, and wet film dries in the air in the cleaning shop and puts 15 minutes, puts into loft drier drying half a hour under 80~100 ℃ of temperature condition again; After taking out naturally cooling, be placed on for the second time and carry out crystal pulling method on the pulling machine and film, Glass tubing is put into SiO 2Flood in the colloidal sol, upwards lift afterwards, pull rate is 8~9cm/min, and wet film dries in the air in the cleaning shop and puts 15 minutes, puts into loft drier again 80~100 ℃ of dry half a hour, takes out naturally cooling again and promptly processes TiO 2-SiO 2Two-layer compelx coating.
2 of embodiment, ginseng is read accompanying drawing 1.
A kind of length/aperture ratio adopts the high anti-reflection coated glass pipe of this method preparation greater than the method for 30 the compound high antireflection film of Glass tubing surfaces externally and internally coating multiple, comprises Glass tubing (1), at the high antireflection layer TiO of Glass tubing (1) surfaces externally and internally separate application 2Thin film layer (2) and at the inside and outside TiO of pipe 2The SiO of thin film layer surface separate application 2Thin film layer (3); Said TiO 2Thin film layer (2) and SiO 2The alternate layout of thin film layer (3); Its coating method is to comprise preparation TiO 2Colloidal sol and preparation SiO 2Colloidal sol prepares at interior colloidal sol, the film preparation and the aftertreatment of filming, and its
A, said TiO 2The colloidal sol preparation is; Adopt the fractional hydrolysis method; Under the magnetic agitation condition, 25: 1.0: 400 in molar ratio: 0.75 added absolute ethyl alcohol, butyl(tetra)titanate, deionized water (in batches adding), hydrochloric acid successively in container, and sealing was stirred 4 hours; Room temperature ageing one day is subsequent use, must filtration treatment before being used to film.
B, said SiO 2The colloidal sol preparation is; Under the magnetic agitation effect, got absolute ethyl alcohol, tetraethoxy, deionized water, hydrochloric acid 20: 1.0: 4.0 in molar ratio: 0.01 adds in the container successively, and sealing was stirred 4 hours; The room temperature ageing is subsequent use more than three days, handles through filtering before being used to film.
C, film preparation and the after heat of filming thereof baking is handled and is, with work piece Glass tubing cleaning-drying, is placed on the pulling machine, adopt crystal pulling method film, Glass tubing earlier at TiO 2Flood in the liquid, upwards lift afterwards, the rate of pulling is 8~9cm/min, and the wet film pipe dries in the air in the cleaning shop and puts 15 minutes, drying half a hour in 90 ℃ of loft drier, uses afterwards with quadrat method coating SiO again again 2Thin film layer coats SiO 2Behind the film, use again with quadrat method coating TiO 2Thin film layer promptly makes TiO 2-SiO 2-TiO 2Three layers of anti-reflection coated glass pipe of compound height.Also can be at second layer TiO 2The thin film layer surface, coating second layer SiO again uses the same method 2Thin film layer, thus structure is at TiO 2-SiO 2-TiO 2-SiO 2Four layers of anti-reflection coated glass pipe of compound height.So analogize high anti-reflection coated glass pipe such as the MULTILAYER COMPOSITE that can constitute five layers or six layers.
Lab scale of the present invention and pilot scale effect all are very gratifying.

Claims (2)

1. a length/aperture ratio adopts the high anti-reflection coated glass pipe of this method preparation greater than the method for 30 the compound high antireflection film of Glass tubing surfaces externally and internally coating multiple, comprises Glass tubing (1), at the high antireflection layer TiO of Glass tubing (1) surfaces externally and internally coating 2Thin film layer (2) and at the inside and outside TiO of pipe 2The SiO of thin film layer (2) surface coated 2Thin film layer (3); Said TiO 2Thin film layer (2) and SiO 2Thin film layer (3) respectively has 1 layer at least; Work as TiO 2Thin film layer and SiO 2Thin film layer is more than 2 layers the time, then TiO 2Thin film layer and SiO 2The alternate layout of thin film layer; The coating method of said coated glass pipe comprises preparation TiO 2Colloidal sol and preparation SiO 2Colloidal sol prepares at interior colloidal sol, the film preparation and the aftertreatment of filming, and its:
Said TiO 2The colloidal sol preparation is to adopt the fractional hydrolysis method, and with the CP butyl(tetra)titanate, absolute ethyl alcohol and deionized water are raw material, are catalyzer with hydrochloric acid; In corrosion-resistant container, add absolute ethyl alcohol successively, butyl(tetra)titanate, under the magnetic bar agitation condition, mix 30~40min after, add deionized water again, hydrochloric acid and absolute ethyl alcohol, 8~10h is stirred in sealing, makes TiO 2Colloidal sol, ageing is subsequent use at ambient temperature then;
Said SiO 2The colloidal sol preparation is with the CP tetraethoxy, and absolute ethyl alcohol and deionized water are raw material, are catalyzer with hydrochloric acid, at room temperature fully mix through magnetic stirring apparatus and make SiO 2Colloidal sol, ageing is subsequent use at ambient temperature then;
Said film preparation is to lift on the device for coating, will be cleaned, the said Glass tubing of exsiccant work piece floods TiO respectively 2Colloidal sol and SiO 2Colloidal sol, colloidal sol---the gel crystal pulling method is filmed in employing;
The said aftertreatment of filming is that the work piece Glass tubing is accomplished TiO 2SiO is handled and accomplishes in the heat baking that lifts after filming 2The heat baking that lifts after filming is handled;
Said TiO 2Film and SiO 2Film, separately hocket through lifting the after heat baking processing of filming and film respectively, it is characterized in that,
A, said TiO 2The mol ratio of colloidal sol raw material is: absolute ethyl alcohol: butyl(tetra)titanate: deionized water: hydrochloric acid=25: 1.0: 400: 0.75;
B, said SiO 2The mol ratio of colloidal sol raw material is: absolute ethyl alcohol: tetraethoxysilance: deionized water: hydrochloric acid=20: 1.0: 4.0: 0.01;
C, the said device for coating that lifts is to ensure that the oscilaltion of work piece Glass tubing can not produce the device for coating that lifts of arbitrary bearing oscillation and shake; Along the linear guides oscilaltion, it is constant to control its speed that moves up and down by variable-frequency motor by the said clamper that lifts device for coating for the work piece Glass tubing; And the said pull rate that lifts device for coating is controlled in 8~10cm/min scope;
D, the heat baking after said the filming is handled, and is that the heat baking of the slowly gentle slow cool down of intensification is handled; After said work piece Glass tubing is accomplished and filmed, put 15~20min purifying to dry in the air under the dustfree environment earlier, drying 25~35min under 80~100 ℃ of temperature condition then, after naturally cool to room temperature.
2. length/aperture ratio according to claim 1 is characterized in that greater than the method for 30 the compound high antireflection film of Glass tubing surfaces externally and internally coating multiple, and the filming of said Glass tubing surfaces externally and internally is from inside to outside successively according to TiO 2Thin film layer and SiO 2The thin film layer coating, thus constitute TiO 2-SiO 2Two-layer compelx coating, or from inside to outside successively according to TiO 2Thin film layer, SiO 2Thin film layer and TiO 2The thin film layer coating, thus constitute TiO 2-SiO 2-TiO 2Three layers of compelx coating.
CN2010101221234A 2010-03-02 2010-03-02 Method for coating multiple compound high anti-reflection films on inner surface and outer surface of glass tube with length/aperture ratio greater than 30 Active CN101786803B (en)

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CN101948250B (en) * 2010-10-09 2013-03-06 福建圣元电子科技有限公司 Method for coating antireflection film on inner wall and outer wall of outer tube of all-glass vacuum solar energy heat-collecting tube
CN102532960B (en) * 2010-12-30 2014-05-07 中国科学院理化技术研究所 Reflection and reflection increasing coating and preparation method thereof
CN103408229A (en) * 2013-07-31 2013-11-27 同济大学 Method for preparing silica broadband antireflection film by adjusting porosity
CN103426939A (en) * 2013-08-27 2013-12-04 天津儒创新材料科技有限公司 Composite antireflective film for solar cells and preparation method thereof
CN103613283B (en) * 2013-11-21 2015-08-19 南通博凯新能源科技有限公司 A kind of SiO 2-TiO 2the preparation method of inorganic anti-reflection film
CN104926150A (en) * 2015-05-20 2015-09-23 安徽力华光电玻璃科技有限公司 Surface coating process for solar glass tube
CN106892576B (en) * 2015-12-18 2019-07-16 有研工程技术研究院有限公司 A kind of hollow array antireflective coating of multi-layer nano and preparation method thereof
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CN1911498A (en) * 2006-08-01 2007-02-14 华东师范大学 Capillary tube array photo catalysis reactor and its preparation and application
CN201305551Y (en) * 2009-03-11 2009-09-09 深圳市三鑫精美特玻璃有限公司 Double-sided coated glass

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CN201305551Y (en) * 2009-03-11 2009-09-09 深圳市三鑫精美特玻璃有限公司 Double-sided coated glass

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