The invention relates to a powerful cleaning agent and belongs to the field of fine chemical automotive chemicals. The cleaning agent is prepared from surface active agents, alcohol additives, oiliness additives, auxiliary agents and water. The surface active agents and the oiliness additives play roles of solubilization, dissolving and washing, the alcohol additives jointly act with the two mentioned components for forming stable microemulsion and have certain permeation, moistening and dissolving functions, the three components jointly act so that the cleaning agent can achieve a good cleaning effect, and the auxiliary agents are functional additives. The cleaning agent has no side effect on cast iron, cast aluminum, leather, fabric, rubber, plastic and the like and can effectively clean an engine or the surface of the interior without generating phenomena of corrosion, color fading, bubbling, falling and the like.

Powerful cleaning agent

The invention discloses a single crystal silicon alcohol-free wool making additive which is composed of alkali corrosion liquid, nonionic surfactant, cation surfactant, anhydrous dextrose and organic salt. The quantity of the nonionic surfactant is 0.01-5% of that of the alkali corrosion liquid, the quantity of the cation surfactant is 0.01-0.3% of that of the alkali corrosion liquid, the quantity of the anhydrous dextrose is 0.05-5.5% of mass of the alkali corrosion liquid, and the quantity of the organic salt is 0.5-8% of mass of the alkali corrosion liquid. A product of the additive enables a single crystal silicon suede 'pyramid' to be small in size and be about 1-3 mum, improves decontamination effect, removes basket impresses and finger impresses, is capable of quickly and effectively forming the suede and is matched with the existing production devices.

Single crystal silicon alcohol-free wool making additive

The invention discloses a texturizing method for a monocrystalline silicon wafer and a texturizing additive used in the texturizing method. The preparation method comprises the preparation steps as follows: 1) the silicon wafer is cleaned; 2) the silicon wafer is placed in a first chemical solution containing metal ions, an oxidizing agent and a chemical corrosive, and a nano structure texture is formed on the surface of the silicon wafer; 3) the silicon wafer is cleaned; 4) the silicon wafer is placed in a second chemical solution and a pyramid structure is formed through micro-chemical etching; 5) the silicon wafer is cleaned. The texturizing additive is any one or more of a surfactant, isopropanol, glucose, soluble starch and urea. Compared with preparation methods in the prior art, the preparation method of the crystalline silicon solar cell surface micro-nano structure has the benefits as follows: the etching rate is high; 2) the uniform pyramid structure is formed; 3) the surface light reflectivity of the prepared silicon wafer is 8%-12%; 4) the silicon wafer etching speed is greatly increased, the production efficiency is improved, and the production cost is reduced.

Texturizing method for monocrystalline silicon wafer and texturizing additive used in texturizing method

The invention belongs to the technical field of monocrystalline silicon wafer tools, and particularly relates to a texturization method of a monocrystalline silicon wafer. The method comprises the following steps: 1) preparing atexturizationadditive; 2) preparing atexturization solution; and 3) putting the monocrystalline silicon wafer into thetexturization solution prepared in the step 2), and carrying out texturization at 80-88 DEG C for 600-1200 seconds. The method has excellent texturization effect; and the pyramids on thetexturizedsurface have smaller size and narrower distribution, and can reduce the light reflection, thereby enhancing the photoelectric conversion efficiency of the assembled solar cell.

Texturization method of monocrystalline silicon wafer

The invention relates to the field of automobile exhaust purification and concretely relates to an automobile exhaust cleaning agent. The automobile exhaust cleaning agent comprises potassium permanganate, active carbon, pentaerythritol, methanol, diethanolamine, diethylene glycol, coconut diethanolamide, ethanol, nickel oxide and copper oxide. Coconut diethanolamide as a surfactant and diethylene glycol as a cosolvent are used for effectively removing greasy dirt and deposited carbon on the inner wall of an internal combustion engine. Through combination of diethanolamine as organic base and diethylene glycol, metal pollutants can be effectively removed. Nickel oxide and copper oxide respectively catalyze carbon monoxide and nitrogen oxide so that the carbon monoxide and nitrogen oxide undergo a reaction to produce small-pollution or pollution-free produce gas. Diethylene glycol has double effects and thus a diethylene glycol use amount is very important. The automobile exhaust cleaning agent can effectively purify automobile tail gas, can be used for cleaning an internal combustion engine, improves fuel oil efficiency and reduces oil consumption.

Automobile exhaust cleaning agent

The invention relates to a cleaning agent for an automobile, belonging to the field of automobile chemicals of fine chemical engineering. The cleaning agent comprises components of surfactant, alcohol washing aid, oily washing aid, additive and water. The surfactant and the oily washing aid play a role in promoting dissolving, dissolving and cleaning; the alcohol washing aid works together with the surfactant and the oily washing aid so as to form stable microemulsion and has certain role of permeating, moistening and dissolving; the surfactant, the oily washing aid and the alcohol washing aid work together so that the cleaning agent reaches good cleaning effect; the additive is functional additive. The cleaning agent has no side effects on cast iron, cast aluminum, leather, fabric, rubber and plastics, can effectively clean engines or interior trim surfaces, and has no phenomena of corrosion, decoloring, bubbling and falling off.

Cleaning agent for automobile

The invention discloses an anti-explosion multi-component dynamic air distribution device and method. The device comprises a low-pressure air distribution system 15, an air compression generation device 16, a pressurization system 17, a vacuumization system 18 and a filling system 19. Through the adoption of a back pressure valve, the pressure of gas at the gas outlet end of the back pressure valve is stable before the gas enters a gas mixer, so that an anti-explosion effect is achieved; due to the adoption of a variable frequency diaphragm compressor, product gas is high in purity and free of impurity gas pollution; moreover, the pressure in the low-pressure air distribution channel is stabilized in a safe pressure range by adjusting the working frequency of the variable frequency diaphragm compressor to achieve the anti-explosion effect; flow control ranges of n mass flow controllers are distributed in a trapezoidal shape for real-time control on gas flow, so that the air distribution precision is improved; air generated by the air compressor is utilized as a diluent gas channel, so that the cost is saved; an alarm function can be performed in an air distribution process.

Anti-explosion multi-component dynamic air distribution device and method

The invention discloses an additive for texturing solution of monocrystalline silicon, belonging to the field of solar cells. The additive has the following components by mass percentage: 0.1-10% of fructose, 1-10% of sodium silicate, 0.1-10% of organic acid salt, 0.1-5% of surfactant, and the balance of deionized water or water with a purity higher than that of the deionized water. By using the additive, the textured surface of the monocrystalline silicon wafer, which is prepared by the texturing solution of monocrystalline silicon in the absence of isopropanol or ethanolthe, has uniform and tiny pyramid structures; in addition, the reaction temperature can be reduced, and the time can be shortened.

Additive for texturing solution of monocrystalline silicon

The invention discloses a disassembly-free cleaning agent for a fuel spray nozzle and belongs to the field of automobile engines On the basis that the total mass of the cleaning agent is 100 percent, the disassembly-free cleaning agent for the fuel spray nozzle comprises the following components in percentage by mass: 5 to 22 percent of decarbonizer, 3 to 25 percent of accelerant, 10 to 25 percent of combustion improver and 40 to 80 percent of diluent The disassembly-free cleaning agent for the fuel spray nozzle is prepared by uniformly mixing the decarbonizer, the accelerant, the combustion improver and the diluents at normal temperature and normal pressure The cleaning agent can effectively clean deposit of the fuel spray nozzle, avoids deformation and swelling of plastic and rubber,is combusted completely, avoids engine knocking and does not corrode metal parts

Disassembly-free cleaning agent for fuel spray nozzle

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Papers

Cleaning agent for automobile

Anti-explosion multi-component dynamic air distribution device and method

Additive for texturing solution of monocrystalline silicon

Disassembly-free cleaning agent for fuel spray nozzle