CN105113017A - Coptis extract silicon slice texturing agent and preparation method thereof - Google Patents

Abstract

The invention discloses a coptis extract silicon slice texturing agent. The coptis extract silicon slice texturing agent is characterized by being prepared from, by weight, 5-10 parts of coptis roots, 1.5-2.5 parts of sodium hydroxide, 3-5 parts of sodium tripolyphosphate, 0.3-0.5 part of lauryl sodium sulfate, 0.3-0.5 part of sodium lauroamphoacetate, 5-10 parts of texturing modifiers, 0.3-0.5 part of coconut oil, 0.5-1 part of sodium caseinate, 0.3-0.5 part of maltodextrin and 100-150 parts of water. By means of the silicon slice texturing agent, the texturing efficiency can be improved, the stability of the texturing technology can be improved, dosage of chemicals can be reduced, the silicon slice texturing agent is free of toxicity, harmless, green and environmentally friendly, the production cost is reduced, the transfer efficiency of a battery slice is effectively improved, good antibacterial and cleaning properties are achieved, and the product quality is stable.

Description

A kind of rhizoma extracting liquid silicon wafer wool making agent and preparation method thereof

Technical field

The present invention relates to silicon wafer wool making technology, be specifically related to a kind of rhizoma extracting liquid 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.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 rhizoma extracting liquid silicon wafer wool making.

The present invention is achieved by the following technical solutions:

The agent of a kind of rhizoma extracting liquid silicon wafer wool making, it is obtained by the raw material of following weight parts:

Coptis 5-10, sodium hydroxide 1.5-2.5, tripoly phosphate sodium STPP 3-5, sodium lauryl sulphate 0.3-0.5, lauryl both sexes sodium-acetate 0.3-0.5, making herbs into wool conditioning agent 5-10, Oleum Cocois 0.3-0.5, sodium-caseinate 0.5-1, maltodextrin 0.3-0.5, 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 rhizoma extracting liquid silicon wafer wool making agent, comprises the following steps:

(1) take raw material by weight, mix and co-ground is even after being pulverized by the coptis with tripoly phosphate sodium STPP, then add the water 80-90 DEG C of stirring 4-8h that sodium lauryl sulphate and 1/2-2/3 measure, cooled and filtered, obtains rhizoma extracting liquid;

(2) sodium hydroxide is dissolved in the water of surplus, first add lauryl both sexes sodium-acetate, Oleum Cocois 800-1000r/min stirs 5-10min, then add rhizoma extracting liquid, sodium-caseinate and maltodextrin 80-90 DEG C and stir 0.5-1h, cooled and filtered, finally add all the other raw material stirring even, obtain the agent of rhizoma extracting liquid 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; By adding rhizoma extracting liquid and acting synergistically with composite generation 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, the consumption of chemical can be reduced again, nontoxic, environmental protection, reduce production cost, the efficiency of conversion of effective raising cell piece, also has antibacterial, clean-up performance preferably, constant product quality.

Embodiment

Non-limiting examples of the present invention is as follows:

The agent of a kind of rhizoma extracting liquid silicon wafer wool making, is prepared from by the component raw material of following weight (kg):

The coptis 10, sodium hydroxide 2.5, tripoly phosphate sodium STPP 5, sodium lauryl sulphate 0.5, lauryl both sexes sodium-acetate 0.5, making herbs into wool conditioning agent 10, Oleum Cocois 0.5, sodium-caseinate 1, maltodextrin 0.5, 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 rhizoma extracting liquid silicon wafer wool making agent comprises the following steps:

(1) take raw material by weight, mix also co-ground after being pulverized by the coptis evenly, 90 DEG C, the water then adding sodium lauryl sulphate and 1/2 amount stirs 4h, and cooled and filtered, obtains rhizoma extracting liquid with tripoly phosphate sodium STPP;

(2) sodium hydroxide is dissolved in the water of surplus, first add lauryl both sexes sodium-acetate, Oleum Cocois 1000r/min stirs 5min, then add rhizoma extracting liquid, sodium-caseinate and maltodextrin 90 DEG C and stir 0.5h, cooled and filtered, finally add all the other raw material stirring even, obtain the agent of rhizoma extracting liquid 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 1.5-2.5 μm after testing, and reflectivity is 9.0%.

Claims (2)

1. the agent of rhizoma extracting liquid silicon wafer wool making, is characterized in that, it is obtained by the raw material of following weight parts:

Coptis 5-10, sodium hydroxide 1.5-2.5, tripoly phosphate sodium STPP 3-5, sodium lauryl sulphate 0.3-0.5, lauryl both sexes sodium-acetate 0.3-0.5, making herbs into wool conditioning agent 5-10, Oleum Cocois 0.3-0.5, sodium-caseinate 0.5-1, maltodextrin 0.3-0.5, 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 rhizoma extracting liquid silicon wafer wool making according to claim 1 agent, is characterized in that, comprise the following steps:

(1) take raw material by weight, mix and co-ground is even after being pulverized by the coptis with tripoly phosphate sodium STPP, then add the water 80-90 DEG C of stirring 4-8h that sodium lauryl sulphate and 1/2-2/3 measure, cooled and filtered, obtains rhizoma extracting liquid;

(2) sodium hydroxide is dissolved in the water of surplus, first add lauryl both sexes sodium-acetate, Oleum Cocois 800-1000r/min stirs 5-10min, then add rhizoma extracting liquid, sodium-caseinate and maltodextrin 80-90 DEG C and stir 0.5-1h, cooled and filtered, finally add all the other raw material stirring even, obtain the agent of rhizoma extracting liquid silicon wafer wool making.