CN105568372A - Coating composition for graphite equipment of polycrystalline silicon ingot furnace - Google Patents
Coating composition for graphite equipment of polycrystalline silicon ingot furnace Download PDFInfo
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- CN105568372A CN105568372A CN201511011341.XA CN201511011341A CN105568372A CN 105568372 A CN105568372 A CN 105568372A CN 201511011341 A CN201511011341 A CN 201511011341A CN 105568372 A CN105568372 A CN 105568372A
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- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B28/00—Production of homogeneous polycrystalline material with defined structure
- C30B28/04—Production of homogeneous polycrystalline material with defined structure from liquids
- C30B28/06—Production of homogeneous polycrystalline material with defined structure from liquids by normal freezing or freezing under temperature gradient
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/17—Amines; Quaternary ammonium compounds
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D129/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal, or ketal radical; Coating compositions based on hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Coating compositions based on derivatives of such polymers
- C09D129/02—Homopolymers or copolymers of unsaturated alcohols
- C09D129/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B29/00—Single crystals or homogeneous polycrystalline material with defined structure characterised by the material or by their shape
- C30B29/02—Elements
- C30B29/06—Silicon
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Abstract
The present invention discloses a coating composition for graphite equipment of a polycrystalline silicon ingot furnace. The coating composition comprises 10-30wt% of a coating and 70-90wt% of a solvent. The coating is selected from one or more of silicon nitride, silicon carbide, silicon dioxide and barium carbonate; and the solvent is selected from water or ethanol. The coating composition of the invention can reduce the pollution of gaseous carbon silicon compound to polycrystalline silicon ingot, but also protect the graphite equipment from damage by silicone fluid in the case of crucible cracking and leakage.
Description
Technical field
The invention belongs to area of solar cell, be specifically related to for the coating composition of graphite equipment of polycrystalline silicon ingot or purifying furnace, the coating method of this coating composition and purposes.
Background technology
In polycrystalline silicon ingot or purifying furnace, usual use quartz crucible holds the silicon liquid of melting, quartz crucible under quartz crucible supports the condition of high temperature all around with graphite protective plate, top is equipped with graphite cover plate again and calls in ingot to prevent dust granules, thermal field can also be maintained to stablize simultaneously, ensure the quality of silicon ingot.
But at high operating temperatures, graphite device surface has some graphite dusts and evaporates, can with some the intermediate gaseous materials in ingot casting process, as reactions such as silicon monoxides, generate the silicide of carbon containing, make the carbon content in silicon ingot higher, affect Ingot quality, and then reliability and the work-ing life of solar cell device can be affected.
In ingot casting process, occur silicon hydrorrhea stream sometimes, now silicon can be bonded in graphite protective plate firmly, and graphite equipment is damaged simultaneously.
CN101812729A discloses polycrystal silicon ingot of a kind of low carbon content and preparation method thereof, wherein refer at the apron internal surface coating silicon nitride of graphite equipment or coat of silicon carbide composition.The content mentioning silicon nitride or silicon carbide in this coating composition in the document [0089] section and [0090] section is 80-100%.The shortcoming of the silicon nitride that objective evaluation is so high or carborundum content.
Summary of the invention
In view of above-mentioned mentioned problem, an object of the present invention is to provide a kind of coating composition of the graphite equipment for polycrystalline silicon ingot or purifying furnace, described coating composition contains:
Applicator 10-30wt%
Solvent 70-90wt%
Wherein said applicator is selected from one or more in silicon nitride, silicon carbide, silicon-dioxide and barium carbonate; Described solvent is selected from water or ethanol.
According to the present invention, applicator for this coating composition should be that one can be high temperature resistant, heat conductivility is good, and the material lower with the wetting property of silicon, therefore suitable applicator can comprise one or more mixtures of silicon nitride, silicon carbide, silicon-dioxide and barium carbonate etc.
According to one of the present invention preferred embodiment, described ethanol can be dehydrated alcohol.
According to one of the present invention preferred embodiment, for ensureing compactness and the adhesivity of coat, preferred described coating substance is granularity is between about 0.1-100 micron, the particulate state of preferred 10-50 micron, and the thickness of final coating is between 0.1-8 millimeter, preferred thickness is 1-3 millimeter.
According to one of the present invention preferred embodiment, for extending the work-ing life of this coating further, in coating composition solution, selectivity can add appropriate additive, comprising the binding agent increasing adhesive power, as silicon sol, polyvinyl alcohol etc.; With the dispersion agent improving compactness, as amino alcohol etc.Wherein the content of dispersion agent can be 0.5-2wt%, and the content of binding agent can be 10-20wt%.
Method well known to those skilled in the art can be adopted to prepare coating composition solution.Such as, by above-mentioned material: applicator, as silicon nitride, silicon carbide, one or more and solvent in silicon-dioxide and barium carbonate are even, are mixed with coating composition solution.Dispersion agent and/or binding agent can be added according to actual needs.
Second object of the present invention is to provide the coating method of described coating composition, it is characterized in that, after described coating composition is on graphite equipment, carry out drying treatment.According to of the present invention one preferred embodiment, can the mode of direct spraying or brushing be used to be coated on the graphite equipment in ingot furnace the coating composition solution prepared, then drying treatment is carried out, preferably carry out drying treatment under vacuo, vacuum tightness can be 10-100mbar, temperature can be 400-900 degree Celsius, and the time can be 4-10 hour.
3rd object of the present invention is to provide the purposes of described coating composition in coating graphite equipment.
Graphite equipment of the present invention comprises graphite base plate, graphite cover plate, graphite protective plate and carbon fiber heat insulation cage body.Coating composition of the present invention can reduce the Prevent Carbon Contamination of gaseous carbon silicon compound to polycrystal silicon ingot, and simultaneously also when crucible cracking colander, protection graphite equipment is from the damage of silicon liquid.
Accompanying drawing explanation
Fig. 1 is the relative displacement carbon content of graphite device surface after the process of different coating ingredients (each embodiment) in the polycrystal silicon ingot that obtains.
Embodiment
Embodiment 1
1, configure coating composition solution: the silicon nitride by 0.9 kilogram of particle diameter being 10 microns, the water of 2.1 kilograms mixes and obtains coating composition solution;
2, use the mode of spraying or brushing, be coated in by coating composition solution on the graphite equipment in ingot furnace, coat-thickness is 1 millimeter, then carries out vacuum drying treatment, and vacuum tightness is 15mbar, and temperature is 450 degrees Celsius, and the time is 5 hours.
Embodiment 2
1, configure coating composition solution: the silicon nitride by 0.45 kilogram of particle diameter being 20 microns, the silicon sol of 0.45 kilogram, the water of 2.1 kilograms mixes and obtains coating composition solution;
2, use the mode of spraying or brushing, be coated in by coating composition solution on the graphite equipment in ingot furnace, coat-thickness is 3 millimeters, then carries out vacuum drying treatment, and vacuum tightness is 50mbar, and temperature is 600 degrees Celsius, and the time is 6 hours.
Embodiment 3
1, configure coating composition solution: the silicon nitride by 0.3 kilogram of particle diameter being 50 microns, the polyvinyl alcohol of 0.6 kilogram, the amino alcohol of 0.06 kilogram, the ethanol of 1.74 kilograms mixes and obtains coating composition solution;
2, use the mode of spraying or brushing, be coated in by coating composition solution on the graphite equipment in ingot furnace, coat-thickness is 8 millimeters, then carries out vacuum drying treatment, and vacuum tightness is 100mbar, and temperature is 850 degrees Celsius, and the time is 10 hours.
Embodiment 4
1, configure coating composition solution: the silicon carbide by 0.9 kilogram of particle diameter being 1 micron, the silicon sol of 0.6 kilogram, the amino alcohol of 0.06 kilogram, the water of 1.44 kilograms mixes and obtains coating composition solution;
2, use the mode of spraying or brushing, be coated in by coating composition solution on the graphite equipment in ingot furnace, coat-thickness is 4 millimeters, then carries out vacuum drying treatment, and vacuum tightness is 50mbar, and temperature is 600 degrees Celsius, and the time is 6 hours.
Embodiment 5
1, configure coating composition solution: the barium carbonate by 0.45 kilogram of particle diameter being 25 microns, the silicon sol of 0.45 kilogram, the amino alcohol of 0.06 kilogram, the water of 2.04 kilograms mixes and obtains coating composition solution;
2, use the mode of spraying or brushing, be coated in by coating composition solution on the graphite equipment in ingot furnace, coat-thickness is 3 millimeters, then carries out vacuum drying treatment, and vacuum tightness is 80mbar, and temperature is 650 degrees Celsius, and the time is 7 hours.
Embodiment 6
1, configure coating composition solution: the silicon-dioxide by 0.45 kilogram of particle diameter being 30 microns, the silicon sol of 0.45 kilogram, the amino alcohol of 0.06 kilogram, the water of 2.04 kilograms mixes and obtains coating composition solution;
2, use the mode of spraying or brushing, be coated in by coating composition solution on the graphite equipment in ingot furnace, coat-thickness is 3 millimeters, then carries out vacuum drying treatment, and vacuum tightness is 80mbar, and temperature is 650 degrees Celsius, and the time is 7 hours.
Embodiment 7
1, coating composition solution is configured: the silicon nitride by 0.2 kilogram of particle diameter being 8 microns, 0.2 kilogram of particle diameter is the silicon carbide of 8 microns, 0.2 kilogram of particle diameter is the silicon-dioxide of 8 microns, the silicon sol of 0.5 kilogram, the amino alcohol of 0.06 kilogram, the water of 1.84 kilograms mixes and obtains coating composition solution;
2, use the mode of spraying or brushing, be coated in by coating composition solution on the graphite equipment in ingot furnace, coat-thickness is 3 millimeters, then carries out vacuum drying treatment, and vacuum tightness is 80mbar, and temperature is 650 degrees Celsius, and the time is 8 hours.
Embodiment 8:
Fig. 1 is the relative displacement carbon content of graphite device surface after the process of different coating ingredients (each embodiment) in the polycrystal silicon ingot that obtains, its numerical value and comparative example do normalized, the displacement carbon content of the polycrystal silicon ingot obtained without coating process for graphite device surface that its comparative example adopts.As we can see from the figure, graphite device surface is through coating ingredients process of the present invention, and the displacement carbon content in polysilicon can reduce by more than 5%, improves the quality of polysilicon.
Claims (10)
1. for the coating composition of the graphite equipment of polycrystalline silicon ingot or purifying furnace, it is characterized in that, described coating composition contains:
Applicator 10-30wt%
Solvent 70-90wt%
Wherein said applicator is selected from one or more in silicon nitride, silicon carbide, silicon-dioxide and barium carbonate, and described applicator is graininess, and the granularity of described particle is 0.1-100 micron;
Described solvent is selected from water or ethanol;
The thickness of described coating composition is 0.01-8 millimeter.
2. coating composition according to claim 1, is characterized in that, described ethanol is dehydrated alcohol.
3., according to the arbitrary described coating composition of claim 1-2, it is characterized in that, described graphite equipment is graphite base plate, graphite cover plate, graphite protective plate and/or carbon fiber heat insulation cage body.
4. according to the arbitrary described coating composition of claim 1-2, it is characterized in that, described coating composition is also containing binding agent;
Described binding agent is selected from silicon sol or polyvinyl alcohol.
5. coating composition according to claim 4, is characterized in that, the content of described binding agent is 10-20wt%.
6., according to the arbitrary described coating composition of claim 1-2, it is characterized in that, described coating composition is also containing dispersion agent, and described dispersion agent is amino alcohol.
7. coating composition according to claim 6, is characterized in that, the content of described dispersion agent is 0.5-2wt%.
8., according to the coating method of the arbitrary described coating composition of claim 1-7, it is characterized in that, after described coating composition is on graphite equipment, carries out drying treatment.
9. coating method according to claim 8, is characterized in that, described drying be vacuum tightness be 10-100mbar, temperature be the condition of 400-900 DEG C under dry 4-10 hour.
10. according to the purposes of the arbitrary described coating composition of claim 1-7 in coating graphite equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511011341.XA CN105568372A (en) | 2015-12-30 | 2015-12-30 | Coating composition for graphite equipment of polycrystalline silicon ingot furnace |
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| CN201511011341.XA CN105568372A (en) | 2015-12-30 | 2015-12-30 | Coating composition for graphite equipment of polycrystalline silicon ingot furnace |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109285801A (en) * | 2018-07-04 | 2019-01-29 | 横店集团东磁股份有限公司 | A method of solving two-sided aluminium oxide structure PERC battery graphite boat pollution |
| CN110719974A (en) * | 2017-04-27 | 2020-01-21 | 胜高股份有限公司 | Method for pulling up silicon single crystal |
| CN110803943A (en) * | 2019-11-30 | 2020-02-18 | 中材江苏太阳能新材料有限公司 | Low-impurity spray-free crucible for casting polycrystal and ingot single crystal and preparation method thereof |
| CN111848201A (en) * | 2020-07-24 | 2020-10-30 | 西安超码科技有限公司 | Carbon/carbon crucible with silicon carbide/silicon coating and preparation method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101844935A (en) * | 2010-05-31 | 2010-09-29 | 江西赛维Ldk太阳能高科技有限公司 | Crucible coating layer for polycrystal silicon or single crystal silicon and preparation method thereof |
| CN102229502A (en) * | 2011-06-10 | 2011-11-02 | 东海晶澳太阳能科技有限公司 | Crucible coating for casting crystalline silicon and preparation method thereof |
| CN102527594A (en) * | 2012-01-22 | 2012-07-04 | 常熟华融太阳能新型材料有限公司 | Quartz crucible for ingot casting and manufacturing method thereof |
| CN102909163A (en) * | 2011-08-05 | 2013-02-06 | 镇江仁德新能源科技有限公司 | Method for forming coating on inner surface of polycrystalline silicon ingot casting crucible |
| CN103130528A (en) * | 2011-12-05 | 2013-06-05 | 江苏协鑫硅材料科技发展有限公司 | Sintering-free crucible coating structure for ingot casting of polycrystalline silicon and manufacture method thereof |
| CN103132141A (en) * | 2011-12-05 | 2013-06-05 | 江苏协鑫硅材料科技发展有限公司 | Coating composition of graphite equipment used for polycrystalline silicon ingot furnace |
| CN104109902A (en) * | 2014-05-16 | 2014-10-22 | 江西赛维Ldk太阳能高科技有限公司 | Crucible for polysilicon ingot casting, coating structure of crucible and coating preparation method |
| CN104962991A (en) * | 2015-05-26 | 2015-10-07 | 江苏润弛太阳能材料科技有限公司 | Quartz crucible and production method thereof |
-
2015
- 2015-12-30 CN CN201511011341.XA patent/CN105568372A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101844935A (en) * | 2010-05-31 | 2010-09-29 | 江西赛维Ldk太阳能高科技有限公司 | Crucible coating layer for polycrystal silicon or single crystal silicon and preparation method thereof |
| CN102229502A (en) * | 2011-06-10 | 2011-11-02 | 东海晶澳太阳能科技有限公司 | Crucible coating for casting crystalline silicon and preparation method thereof |
| CN102909163A (en) * | 2011-08-05 | 2013-02-06 | 镇江仁德新能源科技有限公司 | Method for forming coating on inner surface of polycrystalline silicon ingot casting crucible |
| CN103130528A (en) * | 2011-12-05 | 2013-06-05 | 江苏协鑫硅材料科技发展有限公司 | Sintering-free crucible coating structure for ingot casting of polycrystalline silicon and manufacture method thereof |
| CN103132141A (en) * | 2011-12-05 | 2013-06-05 | 江苏协鑫硅材料科技发展有限公司 | Coating composition of graphite equipment used for polycrystalline silicon ingot furnace |
| CN102527594A (en) * | 2012-01-22 | 2012-07-04 | 常熟华融太阳能新型材料有限公司 | Quartz crucible for ingot casting and manufacturing method thereof |
| CN104109902A (en) * | 2014-05-16 | 2014-10-22 | 江西赛维Ldk太阳能高科技有限公司 | Crucible for polysilicon ingot casting, coating structure of crucible and coating preparation method |
| CN104962991A (en) * | 2015-05-26 | 2015-10-07 | 江苏润弛太阳能材料科技有限公司 | Quartz crucible and production method thereof |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110719974A (en) * | 2017-04-27 | 2020-01-21 | 胜高股份有限公司 | Method for pulling up silicon single crystal |
| CN110719974B (en) * | 2017-04-27 | 2021-09-07 | 胜高股份有限公司 | Method for pulling up silicon single crystal |
| CN109285801A (en) * | 2018-07-04 | 2019-01-29 | 横店集团东磁股份有限公司 | A method of solving two-sided aluminium oxide structure PERC battery graphite boat pollution |
| CN109285801B (en) * | 2018-07-04 | 2021-05-14 | 横店集团东磁股份有限公司 | Method for solving graphite boat pollution of PERC battery with double-sided alumina structure |
| CN110803943A (en) * | 2019-11-30 | 2020-02-18 | 中材江苏太阳能新材料有限公司 | Low-impurity spray-free crucible for casting polycrystal and ingot single crystal and preparation method thereof |
| CN110803943B (en) * | 2019-11-30 | 2022-03-08 | 中材江苏太阳能新材料有限公司 | Low-impurity spray-free crucible for casting polycrystal and ingot single crystal and preparation method thereof |
| CN111848201A (en) * | 2020-07-24 | 2020-10-30 | 西安超码科技有限公司 | Carbon/carbon crucible with silicon carbide/silicon coating and preparation method thereof |
| CN111848201B (en) * | 2020-07-24 | 2022-09-02 | 西安超码科技有限公司 | Carbon/carbon crucible with silicon carbide/silicon coating and preparation method thereof |
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