CN101434456A - Modification method of ultrathin glass protecting cover sheet for space solar cell - Google Patents
Modification method of ultrathin glass protecting cover sheet for space solar cell Download PDFInfo
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- CN101434456A CN101434456A CNA2008100413460A CN200810041346A CN101434456A CN 101434456 A CN101434456 A CN 101434456A CN A2008100413460 A CNA2008100413460 A CN A2008100413460A CN 200810041346 A CN200810041346 A CN 200810041346A CN 101434456 A CN101434456 A CN 101434456A
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- protecting cover
- glass protecting
- cover sheet
- solar cell
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Abstract
The invention relates to a modification method of an ultra-thin glass protecting cover chip used for space solar cells, comprising the following steps: (1) washing the glass protecting cover chip by using an organic solvent doped with ethanol, propanediol or dimethylbenzene, and then fully drying the glass protecting cover chip; (2) melting down chemical tempering raw materials containing potassium nitrate at 380 to 460 DEG C, fully stirring and evenly blending the melted chemical tempering raw materials, fixing the ultra-thin glass protecting cover chip by a special stand, immersing the cover chip in the blended liquid to carry out ion exchange treatment at 380 to 460 DEG C for 30 to 70 minutes; and (3) taking up the well-tempered glass protecting cover chips at high speed so as to be cooled down and washed by water, the organic solvent and de-ionized water successively, and then dried up to form finished products. The method has simple and convenient operation, and obvious tempering effect, can effectively intensify the ultra-thin glass protecting cover chips with the thickness of less than 0.1mm, meanwhile, obviously improves the capacity of the glass to resist space alpha particle bombardment, and ensures the highly effective operation of space solar cells.
Description
Technical field
The invention belongs to the glass material field, particularly relate to a kind of method of modifying of ultrathin glass protecting cover sheet for space solar cell.Belong to ion-exchange and strengthen (chemical tempering) technology.
Background technology
Ultrathin glass protecting cover sheet for space solar cell plays the physical protection effect to battery main body; it self radiation stabilized (not deepening when being subjected to high-energy irradiation); also can filter ultraviolet ray and cause battery failure (its structure as shown in Figure 1) with the aging and blackening that prevents binding agent; but because the only about 0.08～0.30mm of solar cell cover plate thickness; very easily in installation, aircraft lift-off and battery operated process, break; glass fragment can directly cause damage to solar cell, increases cost greatly.Simultaneously, cover plate glass owing to be subjected to the bombardment of space particle (ion, proton and neutron etc.), is affected the performances such as smooth finish, transmittance of glass surface in the use of space, thereby reduces the photoelectric transformation efficiency of solar cell greatly.These all are the major defects that present space solar cell cover plate faces, and have influenced working efficiency, work-ing life and the reliability thereof of solar cell greatly.
Summary of the invention
Technical problem to be solved by this invention provides a kind of method of modifying of ultrathin glass protecting cover sheet for space solar cell, operating procedure of the present invention is easy, cost is low, the toughness of toughened glass cover plate and the ability of anti-space particle bombardment have been significantly improved, prolong its work-ing life, and improve its reliable long-term working.
The method of modifying of a kind of ultrathin glass protecting cover sheet for space solar cell of the present invention comprises:
(1) glass protecting cover sheet is cleaned up thorough drying with organic solvent;
(2) the chemical tempering raw material that will contain saltpetre is 380～460 ℃ of high-temperature fusion, and fully stirs, and mixes, use special pallet to fix above-mentioned glass protecting cover sheet again, immerse in the melting mixing liquid, under 380～460 ℃ of conditions, carry out the ion exchange treatment of 30～70min;
(3) tempering is good glass protecting cover sheet takes out rapidly, cooling, and successively through water, organic solvent, washed with de-ionized water, finished product is made in oven dry then.
The thickness of glass protecting cover sheet is 0.08mm～0.15mm in the described step (1).
Organic solvent is ethanol, propylene glycol or dimethylbenzene in the described step (1).
The chemical tempering raw material is in the described step (2): the saltpetre KNO of (1) 100 mass fraction
3(2) the saltpetre KNO of 98.0-99.8 mass fraction
3SODIUMNITRATE NaNO with the 0.2-2.0 mass fraction
3Mixture; (3) the saltpetre KNO of 98.1-98.9 mass fraction
3, the sodium hydroxide NaOH of 0.1-1.9 mass fraction and the mixture of 0.2g-1.0g aluminium powder.
The object of the invention is to utilize specific technology that ion exchange treatment is carried out with solar cell ultra-thin glass cover plate in the space, improve the toughness of ultra-thin glass greatly, improve more than 60% than former sheet glass approximately, improve the performance of space particle bombardments such as its tolerance ionic fluid simultaneously.Thereby effectively reduce cover glass in the solar module installation process breakage and battery main body is caused damage, reduce the space thus greatly with the preparation cost of solar cell; Simultaneously, will obviously prolong battery in spatial work-ing life and improve its reliable long-term working, have very important practical significance through the cover glass of this art breading.
This method can also extensively be generalized to various Na
2O-SiO
2It is the enhancing of thin sheet glass and toughness reinforcing.Not only can significantly improve glass intensity, and can keep glass glass thin slice dimensional precision and, avoid optical distortion, have excellent practical value.
Description of drawings
Fig. 1 is the solar battery structure synoptic diagram
Beneficial effect
(1) operating procedure of the present invention is easy, and cost is low, reduces cover glass to the infringement of battery;
(2) toughness of safety glass cover plate significantly improves, and light transmittance, dimensional accuracy remain intact, and has improved the anti-space of glass grain Ability and the reliable long-term working of son bombardment have prolonged service life.
Embodiment
Below in conjunction with specific embodiment, further set forth the present invention.
Embodiment one
Utilize saltpetre KNO
3100wt% carries out ion exchange treatment according to abovementioned steps (1)-(3) to cover glass.Wherein treatment temp is 400 ℃, and ion-exchange time is 70min.The sample that obtains is tested various performances respectively.
Utilize the dynamic thermomechanical property analyser of Perkin Elimer (DMA 7e) that chemically toughened glass cover plate crooked breaking strength is at normal temperatures tested, find that its intensity brings up to 572.9MPa from the 124.5MPa of former sheet glass, improve nearly 360%.
Utilize Lambda 35 UV/Vis spectrometer type ultraviolet-visible spectrophotometers measure former sheet glass, chemically toughened glass and the ion beam bombardment that produces through 4 megavoltage accelerator ion beam analysis systems (Ion Beam Analysis System) terminal respectively after in the 300-800nm wavelength region, see through spectrum.The visible light transmissivity of discovery chemically toughened glass cover plate and this parameter value of former sheet glass are almost equal.And through behind the ion beam bombardment, the visible light transmissivity decline degree (about 5.51%) of chemically toughened glass cover plate is less than the slippage (about 9.13%) of former sheet glass.
Embodiment two
Utilize saltpetre KNO
398.1-98.9wt%, sodium hydroxide NaOH 0.1-1.9 (wt) %, aluminium powder Al0.2g-1.0g carry out ion exchange treatment according to abovementioned steps (1)-(3) to cover glass.Wherein treatment temp is 400 ℃, and ion-exchange time is 70min.The sample that obtains is tested various performances respectively.
Utilize the dynamic thermomechanical property analyser of Perkin Elimer (DMA 7e) that chemically toughened glass cover plate crooked breaking strength is at normal temperatures tested, find that its intensity brings up to 559.1MPa from the 124.5MPa of former sheet glass, improve nearly 350%.
Utilize Lambda 35 UV/Vis spectrometer type ultraviolet-visible spectrophotometers measure former sheet glass, chemically toughened glass and the ion beam bombardment that produces through 4 megavoltage accelerator ion beam analysis systems (Ion Beam Analysis System) terminal respectively after in the 300-800nm wavelength region, see through spectrum.The visible light transmissivity of discovery chemically toughened glass cover plate and this parameter value of former sheet glass are almost equal.And through behind the ion beam bombardment, the visible light transmissivity decline degree (about 5.52%) of chemically toughened glass cover plate is less than the slippage (about 9.13%) of former sheet glass.
Embodiment three
Utilize saltpetre KNO
3100wt% carries out ion exchange treatment according to abovementioned steps (1)-(3) to cover glass.Wherein treatment temp is 420 ℃, and ion-exchange time is 40min.The sample that obtains is tested various performances respectively.
Utilize the dynamic thermomechanical property analyser of Perkin Elimer (DMA 7e) that chemically toughened glass cover plate crooked breaking strength is at normal temperatures tested, find that its intensity brings up to 632.4MPa from the 124.5MPa of former sheet glass, improve nearly 400%.
Utilize Lambda 35 UV/Vis spectrometer type ultraviolet-visible spectrophotometers measure former sheet glass, chemically toughened glass and the ion beam bombardment that produces through 4 megavoltage accelerator ion beam analysis systems (Ion Beam Analysis System) terminal respectively after in the 300-800nm wavelength region, see through spectrum.The visible light transmissivity of discovery chemically toughened glass cover plate and this parameter value of former sheet glass are almost equal.And through behind the ion beam bombardment, the visible light transmissivity decline degree (about 5.51%) of chemically toughened glass cover plate is less than the slippage (about 9.13%) of former sheet glass.
Embodiment four
Utilize saltpetre KNO
3100wt % carries out ion exchange treatment according to abovementioned steps (1)-(3) to cover glass.Wherein treatment temp is 440 ℃, and ion-exchange time is 40min.The sample that obtains is tested various performances respectively.
Utilize the dynamic thermomechanical property analyser of Perkin Elimer (DMA 7e) that chemically toughened glass cover plate crooked breaking strength is at normal temperatures tested, find that its intensity brings up to 459.2MPa from the 124.5MPa of former sheet glass, improve nearly 270%.
Utilize Lambda 35 UV/Vis spectrometer type ultraviolet-visible spectrophotometers measure former sheet glass, chemically toughened glass and the ion beam bombardment that produces through 4 megavoltage accelerator ion beam analysis systems (Ion Beam Analysis System) terminal respectively after in the 300-800nm wavelength region, see through spectrum.The visible light transmissivity of discovery chemically toughened glass cover plate and this parameter value of former sheet glass are almost equal.And through behind the ion beam bombardment, the visible light transmissivity decline degree (about 5.55%) of chemically toughened glass cover plate is less than the slippage (about 9.13%) of former sheet glass.
Embodiment five
Utilize saltpetre KNO
3100wt % carries out ion exchange treatment according to abovementioned steps (1)-(3) to cover glass.Wherein treatment temp is 460 ℃, and ion-exchange time is 20min.The sample that obtains is tested various performances respectively.
Utilize the dynamic thermomechanical property analyser of Perkin Elimer (DMA 7e) that chemically toughened glass cover plate crooked breaking strength is at normal temperatures tested, find that its intensity brings up to 502.8MPa from the 124.5MPa of former sheet glass, improve nearly 300%.
Utilize Lambda 35UV/Vis spectrometer type ultraviolet-visible spectrophotometer measure former sheet glass, chemically toughened glass and the ion beam bombardment that produces through 4 megavoltage accelerator ion beam analysis systems (Ion Beam Analysis System) terminal respectively after in the 300-800nm wavelength region, see through spectrum.The visible light transmissivity of discovery chemically toughened glass cover plate and this parameter value of former sheet glass are almost equal.And through behind the ion beam bombardment, the visible light transmissivity decline degree (about 5.54%) of chemically toughened glass cover plate is less than the slippage (about 9.13%) of former sheet glass.
Claims (6)
1. the method for modifying of a ultrathin glass protecting cover sheet for space solar cell comprises:
(1) glass protecting cover sheet is cleaned up thorough drying with organic solvent;
(2) the chemical tempering raw material that will contain saltpetre is 380～460 ℃ of high-temperature fusion, and fully stirs, and mixes, use pallet to fix above-mentioned glass protecting cover sheet again, immerse in the melting mixing liquid, under 380～460 ℃ of conditions, carry out the ion exchange treatment of 30～70min;
(3) tempering is good glass protecting cover sheet takes out rapidly, cooling, and successively through water, organic solvent, washed with de-ionized water, finished product is made in oven dry then.
2. the method for modifying of ultrathin glass protecting cover sheet for space solar cell according to claim 1 is characterized in that: the thickness of glass protecting cover sheet is 0.08mm～0.15mm in the described step (1).
3. the method for modifying of ultrathin glass protecting cover sheet for space solar cell according to claim 1 is characterized in that: organic solvent is ethanol, propylene glycol or dimethylbenzene in the described step (1).
4. the method for modifying of ultrathin glass protecting cover sheet for space solar cell according to claim 1 is characterized in that: chemical tempering proportioning raw materials in the described step (2): saltpetre KNO
3100wt%.
5. the method for modifying of ultrathin glass protecting cover sheet for space solar cell according to claim 1 is characterized in that: chemical tempering proportioning raw materials in the described step (2): saltpetre KNO
398.0-99.8wt%, SODIUMNITRATE NaNO
30.2-2.0wt%.
6. the method for modifying of ultrathin glass protecting cover sheet for space solar cell according to claim 1 is characterized in that: chemical tempering proportioning raw materials in the described step (2): saltpetre KNO
398.1-98.9wt%, sodium hydroxide NaOH0.1-1.9 (wt) %, aluminium powder Al 0.2g-1.0g.
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2008100413460A CN101434456A (en) | 2008-08-04 | 2008-08-04 | Modification method of ultrathin glass protecting cover sheet for space solar cell |
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|---|---|---|---|
| CNA2008100413460A CN101434456A (en) | 2008-08-04 | 2008-08-04 | Modification method of ultrathin glass protecting cover sheet for space solar cell |
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| CN101434456A true CN101434456A (en) | 2009-05-20 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101798170A (en) * | 2010-04-15 | 2010-08-11 | 秦皇岛星箭特种玻璃有限公司 | Method for preparing high-strength overlarge and ultrathin cover glass for satellite |
| CN102476913A (en) * | 2010-11-25 | 2012-05-30 | 广州星百嘉玻璃制品有限公司 | Production process of toughened glass cup of stirrer |
| CN103319083A (en) * | 2013-05-28 | 2013-09-25 | 苏州安洁科技股份有限公司 | Method for raising intensity of glass panel on portable electronic device |
| CN104445896A (en) * | 2014-11-28 | 2015-03-25 | 张家港市德力特新材料有限公司 | Method for preparing tempered glass |
| CN109708753A (en) * | 2019-02-22 | 2019-05-03 | 苏州馥昶空间技术有限公司 | A kind of four-quadrant GaAs sun sensor component and preparation method thereof |
-
2008
- 2008-08-04 CN CNA2008100413460A patent/CN101434456A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101798170A (en) * | 2010-04-15 | 2010-08-11 | 秦皇岛星箭特种玻璃有限公司 | Method for preparing high-strength overlarge and ultrathin cover glass for satellite |
| CN101798170B (en) * | 2010-04-15 | 2012-04-11 | 秦皇岛星箭特种玻璃有限公司 | Preparation method of high-strength ultra-large ultrathin glass cover plate for satellite |
| CN102476913A (en) * | 2010-11-25 | 2012-05-30 | 广州星百嘉玻璃制品有限公司 | Production process of toughened glass cup of stirrer |
| CN103319083A (en) * | 2013-05-28 | 2013-09-25 | 苏州安洁科技股份有限公司 | Method for raising intensity of glass panel on portable electronic device |
| CN104445896A (en) * | 2014-11-28 | 2015-03-25 | 张家港市德力特新材料有限公司 | Method for preparing tempered glass |
| CN109708753A (en) * | 2019-02-22 | 2019-05-03 | 苏州馥昶空间技术有限公司 | A kind of four-quadrant GaAs sun sensor component and preparation method thereof |
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Open date: 20090520 |