CN105177719A - Environment-friendly high-efficient silicon chip texturing agent and preparation method thereof - Google Patents
Environment-friendly high-efficient silicon chip texturing agent and preparation method thereof Download PDFInfo
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- CN105177719A CN105177719A CN201510523774.7A CN201510523774A CN105177719A CN 105177719 A CN105177719 A CN 105177719A CN 201510523774 A CN201510523774 A CN 201510523774A CN 105177719 A CN105177719 A CN 105177719A
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Abstract
The invention discloses an environment-friendly high-efficient silicon chip texturing agent, which is characterized by being prepared from the following raw materials in parts by weight: 1.5 to 2.5 parts of sodium hydroxide, 0.5 to 1 part of sodium cocoyl methyl taurate, 0.3 to 0.5 part of castor oil-polyoxyethylene ether, 0.2 to 0.4 part of hydroxyethylidene diphosphonic acid, 1 to 2 parts of sodium polyacrylate, 0.3 to 0.5 part of sodium oleate, 0.3 to 0.5 part of sodium silicate, 5 to 10 parts of texturing conditioning agent, and 100 to 150 parts of water. The provided silicon chip texturing agent can improve the texturing efficiency and stability of texturing technology, effectively improves the conversion efficiency of battery chips, reduces the texturing time, improves the production efficiency, reduces the using amount of chemical products, has a good degradable property, is pollution-free to the environment, reduces the production cost and wastewater treatment cost, and generates good economic benefits and environment benefits.
Description
Technical field
The present invention relates to silicon wafer wool making technology, be specifically related to a kind of environment-friendly high-efficiency silicon wafer wool making agent and preparation method thereof.
Background technology
Making herbs into wool is the important procedure in manufacture of solar cells technical process, utilize lower concentration alkalescence corrosive fluid to the anisotropic etch principle of silicon single crystal, " pyramid " structure is formed at silicon chip surface, reduce the reflectivity of silicon chip surface, increase the absorption of light, reduce reflectivity, improve the transformation efficiency of solar cell.At present, conventional leather producing process generally adopts sodium hydroxide or potassium hydroxide, and the mixing solutions adding suitable Virahol and water glass carries out making herbs into wool.The composition volatile quantities such as the Virahol that existing Woolen-making liquid uses are large, and the feature of environmental protection is poor, and work-ing life is short, and chemical cost amount is large, and reaction controllability is low, and making herbs into wool poor repeatability, directly affects quality product.And the problem that the common Woolen-making liquid ubiquity making herbs into wool time is longer, cannot realize rapidly and efficiently making herbs into wool, production efficiency is lower.In order to solve the problem, need to develop new Woolen-making liquid, improving matte homogeneity, improve making herbs into wool effect, improving the efficiency of conversion of solar battery sheet.
Summary of the invention
The object of this invention is to provide the agent of a kind of environment-friendly high-efficiency silicon wafer wool making.
The present invention is achieved by the following technical solutions:
The agent of a kind of environment-friendly high-efficiency silicon wafer wool making, it is obtained by the raw material of following weight parts:
Sodium hydroxide 1.5-2.5, sodium cocoyl methyl Sodium taurine salt 0.5-1, castor oil polyoxyethylene ether 0.3-0.5, hydroxy ethylene diphosphonic acid 0.2-0.4, sodium polyacrylate 1-2, sodium oleate 0.3-0.5, water glass 0.3-0.5, making herbs into wool conditioning agent 5-10, water 100-150;
Wherein making herbs into wool conditioning agent is made up of the raw material of following weight part: vinylbenzene 3-5, methyl methacrylate 2-4, polyvinyl alcohol 2-4, W-Gum 1-2, Potassium Persulphate 0.1-0.2, peregal 0.5-1, water 80-100; The preparation method of making herbs into wool conditioning agent be first polyvinyl alcohol and W-Gum are added 1/2-2/3 amount water in 50-60 DEG C stir 1-2h, add peregal 1000-1500r/min again and stir 5-10min, add vinylbenzene, methyl methacrylate and Potassium Persulphate mix and be heated to 85-95 DEG C of reaction 0.5-1h, finally add remaining water, cool after stirring, to obtain final product.
A preparation method for environment-friendly high-efficiency silicon wafer wool making agent, comprises the following steps:
(1) take raw material by weight, first sodium hydroxide is added to the water and dissolves completely, then add hydroxy ethylene diphosphonic acid 50-60 DEG C of stirring 0.5-1h, stir 1-2h, cooled and filtered under then adding sodium polyacrylate and water glass similarity condition, obtain filtrate;
(2) sodium cocoyl methyl Sodium taurine salt, castor oil polyoxyethylene ether and sodium oleate to be added in the filtrate in (1) 60-80 DEG C, 500-1000r/min stirs 10-15min, it is even to add all the other raw material stirring after cooling, obtains the agent of environment-friendly high-efficiency silicon wafer wool making.
Advantage of the present invention is:
The present invention introduces making herbs into wool additive, produces adsorption with silicon chip surface, improves nucleation density, increases the anisotropy of reaction, is conducive to improving matte pyramid profile, and formation density is large, the matte of uniform, controllable, improves making herbs into wool efficiency; Meanwhile, by the composite generation synergy of all the other raw materials, the corrosion speed of silicon chip in alkali lye can be controlled, improve the stability of leather producing process, effectively improve the efficiency of conversion of cell piece, reduce the making herbs into wool time, enhance productivity, can reduce again the consumption of chemical, degradability is good, does not produce environment and pollutes, reduce production cost and cost for wastewater treatment, environmental protection, steady quality, has good social benefit and environmental benefit.
Embodiment
Non-limiting examples of the present invention is as follows:
The agent of a kind of environment-friendly high-efficiency silicon wafer wool making, is prepared from by the component raw material of following weight (kg):
Sodium hydroxide 2.5, sodium cocoyl methyl Sodium taurine salt 1, castor oil polyoxyethylene ether 0.5, hydroxy ethylene diphosphonic acid 0.4, sodium polyacrylate 2, sodium oleate 0.5, water glass 0.5, making herbs into wool conditioning agent 10, water 150;
Wherein making herbs into wool conditioning agent is made up of the component raw material of following weight (kg): vinylbenzene 3, methyl methacrylate 2, polyvinyl alcohol 2, W-Gum 1, Potassium Persulphate 0.1, peregal 0.5, water 80; Polyvinyl alcohol and W-Gum are first added 60 DEG C of stirring 1h in the water of 1/2 amount by the preparation method of making herbs into wool conditioning agent, add peregal 1000r/min again and stir 5min, add vinylbenzene, methyl methacrylate and Potassium Persulphate mix and be heated to 85 DEG C of reaction 0.5h, finally add remaining water, cool after stirring, to obtain final product.
The preparation method of environment-friendly high-efficiency silicon wafer wool making agent comprises the following steps:
(1) take raw material by weight, first sodium hydroxide is added to the water and dissolves completely, then add hydroxy ethylene diphosphonic acid 60 DEG C stirring 1h, stir 2h, cooled and filtered under then adding sodium polyacrylate and water glass similarity condition, obtain filtrate;
(2) sodium cocoyl methyl Sodium taurine salt, castor oil polyoxyethylene ether and sodium oleate to be added in the filtrate in (1) 80 DEG C, 1000r/min stirs 15min, it is even to add all the other raw material stirring after cooling, obtains the agent of environment-friendly high-efficiency silicon wafer wool making.
Be immersed in by monocrystalline silicon piece in silicon wafer wool making agent obtained above, making herbs into wool under 85 DEG C of conditions, the making herbs into wool time is 20min, and the silicon chip surface obtained forms the suede structure of size uniform, and pyramidal mean sizes is at 1.5-3 μm after testing, and reflectivity is 9.7%.
Claims (2)
1. the agent of environment-friendly high-efficiency silicon wafer wool making, is characterized in that, it is obtained by the raw material of following weight parts:
Sodium hydroxide 1.5-2.5, sodium cocoyl methyl Sodium taurine salt 0.5-1, castor oil polyoxyethylene ether 0.3-0.5, hydroxy ethylene diphosphonic acid 0.2-0.4, sodium polyacrylate 1-2, sodium oleate 0.3-0.5, water glass 0.3-0.5, making herbs into wool conditioning agent 5-10, water 100-150;
Described making herbs into wool conditioning agent is made up of the raw material of following weight part: vinylbenzene 3-5, methyl methacrylate 2-4, polyvinyl alcohol 2-4, W-Gum 1-2, Potassium Persulphate 0.1-0.2, peregal 0.5-1, water 80-100; The preparation method of making herbs into wool conditioning agent be first polyvinyl alcohol and W-Gum are added 1/2-2/3 amount water in 50-60 DEG C stir 1-2h, add peregal 1000-1500r/min again and stir 5-10min, add vinylbenzene, methyl methacrylate and Potassium Persulphate mix and be heated to 85-95 DEG C of reaction 0.5-1h, finally add remaining water, cool after stirring, to obtain final product.
2. the preparation method of a kind of environment-friendly high-efficiency silicon wafer wool making according to claim 1 agent, is characterized in that, comprise the following steps:
(1) take raw material by weight, first sodium hydroxide is added to the water and dissolves completely, then add hydroxy ethylene diphosphonic acid 50-60 DEG C of stirring 0.5-1h, stir 1-2h, cooled and filtered under then adding sodium polyacrylate and water glass similarity condition, obtain filtrate;
(2) sodium cocoyl methyl Sodium taurine salt, castor oil polyoxyethylene ether and sodium oleate to be added in the filtrate in (1) 60-80 DEG C, 500-1000r/min stirs 10-15min, it is even to add all the other raw material stirring after cooling, obtains the agent of environment-friendly high-efficiency silicon wafer wool making.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510523774.7A CN105177719A (en) | 2015-08-25 | 2015-08-25 | Environment-friendly high-efficient silicon chip texturing agent and preparation method thereof |
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| CN201510523774.7A CN105177719A (en) | 2015-08-25 | 2015-08-25 | Environment-friendly high-efficient silicon chip texturing agent and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107747126A (en) * | 2017-11-03 | 2018-03-02 | 通威太阳能（安徽）有限公司 | A kind of monocrystalline silicon is without alcohol flocking additive, Woolen-making liquid and its application method |
| WO2022262340A1 (en) * | 2021-06-18 | 2022-12-22 | 常州时创能源股份有限公司 | Alkali corrosion adjuvant for cleaning winding-plated polysilicon and application thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102586887A (en) * | 2012-03-15 | 2012-07-18 | 苏州先拓光伏科技有限公司 | Suede-making additive for low-reflectivity monocrystalline silicon |
| CN102586888A (en) * | 2012-03-15 | 2012-07-18 | 苏州先拓光伏科技有限公司 | Non-alcoholic monocrystalline silicon flock making additive |
| CN103614778A (en) * | 2013-11-25 | 2014-03-05 | 英利能源（中国）有限公司 | Alcohol-free alkaline texturing solution for mono-crystalline silicon wafer, texturing method for mono-crystalline silicon wafer, solar cell and manufacturing method for solar cell |
-
2015
- 2015-08-25 CN CN201510523774.7A patent/CN105177719A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102586887A (en) * | 2012-03-15 | 2012-07-18 | 苏州先拓光伏科技有限公司 | Suede-making additive for low-reflectivity monocrystalline silicon |
| CN102586888A (en) * | 2012-03-15 | 2012-07-18 | 苏州先拓光伏科技有限公司 | Non-alcoholic monocrystalline silicon flock making additive |
| CN103614778A (en) * | 2013-11-25 | 2014-03-05 | 英利能源（中国）有限公司 | Alcohol-free alkaline texturing solution for mono-crystalline silicon wafer, texturing method for mono-crystalline silicon wafer, solar cell and manufacturing method for solar cell |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107747126A (en) * | 2017-11-03 | 2018-03-02 | 通威太阳能（安徽）有限公司 | A kind of monocrystalline silicon is without alcohol flocking additive, Woolen-making liquid and its application method |
| WO2022262340A1 (en) * | 2021-06-18 | 2022-12-22 | 常州时创能源股份有限公司 | Alkali corrosion adjuvant for cleaning winding-plated polysilicon and application thereof |
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Application publication date: 20151223 |
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