CN106893642B - Water-based cleaning agent and application thereof - Google Patents
Water-based cleaning agent and application thereof Download PDFInfo
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- CN106893642B CN106893642B CN201710107011.3A CN201710107011A CN106893642B CN 106893642 B CN106893642 B CN 106893642B CN 201710107011 A CN201710107011 A CN 201710107011A CN 106893642 B CN106893642 B CN 106893642B
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
- C11D1/825—Mixtures of compounds all of which are non-ionic
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/20—Organic compounds containing oxygen
- C11D3/2068—Ethers
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/20—Organic compounds containing oxygen
- C11D3/2093—Esters; Carbonates
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/26—Organic compounds containing nitrogen
- C11D3/30—Amines; Substituted amines ; Quaternized amines
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/37—Polymers
- C11D3/3703—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C11D3/373—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicones
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/43—Solvents
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/008—Polymeric surface-active agents
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
- C11D1/72—Ethers of polyoxyalkylene glycols
- C11D1/721—End blocked ethers
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- Detergent Compositions (AREA)
Abstract
The invention relates to a water-based cleaning agent, which comprises the following components in percentage by weight: 4 to 10 percent of surfactant; 8 to 20 percent of oil-soluble solvent; 3% -7% of a builder; 0.2 to 1.2 percent of defoaming agent; deionized water to 100%; the surfactant is prepared by compounding fatty acid methyl ester ethoxylate and any 1 or at least 2 of straight-chain or branched-chain fatty alcohol-polyoxyethylene ether. According to the invention, different surfactants are compounded, and components such as an oil-soluble solvent, a builder, a defoaming agent and the like are matched, so that dust, ion residues, oil stains and waxy impurities of the circuit board can be effectively removed, and the surface of the circuit board is not damaged. On the other hand, the water-based cleaning agent provided by the invention is green and environment-friendly, does not volatilize toxic solvents easily, is harmless to human bodies, is clean thoroughly and free from residues, and can effectively avoid the risks of short circuit, corrosion and the like after electronic devices are welded.
Description
Technical Field
The invention relates to the field of cleaning agents, in particular to a water-based cleaning agent and application thereof.
Background
With the rapid development of the electronic industry, high-density electronic circuit boards and high-density IC pin-out circuit boards are widely used. In the preparation process of the circuit board, most manufacturers use the cleaning-free soldering flux, but the high-density characteristic of the product requires cleaning by using a cleaning agent, or dust is accumulated between high-density lines and among pins of the circuit board, and the phenomenon of short circuit, corrosion and the like of the circuit board is caused once the humidity is increased.
The common cleaning agent is an organic solvent cleaning agent, most of which are volatile such as dichloromethane, trichloroethylene, acetone, isopropanol, freon and the like, and the cleaning agent pollutes the environment, destroys the ozone layer and is harmful to the human health. There are also a few water-based or semi-water-based cleaning agents, but the cleaning range is limited, the effect is poor, and there may be risks.
Therefore, it is important to develop a novel green and environment-friendly water-based cleaning agent, which can protect the environment and human health.
Disclosure of Invention
Aiming at the problems of environmental protection and use safety of the existing cleaning agent in the prior art, the water-based cleaning agent is provided, and can effectively clean precise electronic devices in the electronic industry, remove soldering flux, and dust and dirt attached to the devices, and avoid short circuit in the use process of the devices.
The invention is realized by the following technical scheme:
the water-based cleaning agent comprises the following components in percentage by weight:
the surfactant is prepared by compounding fatty acid methyl ester ethoxylate and any 1 or at least 2 of straight-chain or branched-chain fatty alcohol-polyoxyethylene ether.
Fatty acid methyl ester ethoxylate (FMEE) is a nonionic surfactant, and is prepared by directly performing addition reaction on fatty acid methyl ester and Ethylene Oxide (EO) under the action of a corresponding catalyst. The FMEE has a structure similar to that of oil and wax, is a surfactant with the best removal capability of the oil and the wax, and has the oil removal capability 1.5 times that of fatty alcohol-polyoxyethylene ether and 2.5 times that of triethanolamine oleate soap. In the aspect of wax removal, the wax removal capacity of fatty acid methyl ester ethoxylate (FMEE) is 1.6 times that of fatty alcohol polyoxyethylene ether and 1.4 times that of triethanolamine oleic soap.
The FMEE is compounded with the isomeric alcohol polyoxyethylene ether and the lauryl alcohol polyoxyethylene ether to generate a synergistic effect, so that the oil removing and wax removing capabilities are stronger.
Preferably, the linear or branched fatty alcohol-polyoxyethylene ether comprises any 1 or at least 2 of linear or branched fatty alcohol-polyoxyethylene ethers of C6-C20.
The C6-C20 straight chain or branched chain fatty alcohol-polyoxyethylene ether can be better matched with FMEE, the stability of the cleaning agent is improved, and the ash removal, oil removal and wax removal performances of the water-based cleaning agent are improved.
Preferably, the branched fatty alcohol-polyoxyethylene ether comprises any 1 or at least 2 of isomeric dodecyl alcohol polyoxyethylene ether, isomeric undecyl alcohol polyoxyethylene ether and isomeric tridecyl alcohol polyoxyethylene ether.
Preferably, the linear fatty alcohol-polyoxyethylene ether comprises any 1 or at least 2 of laurinol polyoxyethylene ether, palmityl alcohol polyoxyethylene ether, undecyl alcohol polyoxyethylene ether and stearyl alcohol polyoxyethylene ether.
Preferably, the degree of polymerization of the linear chain or branched chain fatty alcohol-polyoxyethylene ether is 5-12, preferably 7-9.
The linear chain or branched chain fatty alcohol-polyoxyethylene ether has a polymerization degree of 5-12 and has proper viscosity, and the linear chain or branched chain fatty alcohol-polyoxyethylene ether can cooperate with other components in the formula to have proper viscosity by matching with the addition amount in the formula, and can reach fine gaps in the electronic device to finish cleaning. Too high polymerization degree, too high viscosity, unfavorable cleaning of fine parts, too low polymerization degree, too low viscosity, poor adhesion and poor cleaning effect.
Preferably, the fatty acid methyl ester polyoxyethylene ether comprises C10-C20 fatty acid methyl ester polyoxyethylene ether, preferably C10-C20 fatty acid methyl ester polyoxyethylene ether.
The selection of the number of carbon atoms of the fatty acid methyl ester polyoxyethylene ether fatty chain influences the stability of the formula, and the fatty acid methyl ester polyoxyethylene ether with proper carbon atoms is matched with the fatty alcohol polyoxyethylene ether, so that the dedusting and dewaxing performances can be enhanced.
Preferably, the polymerization degree of the fatty acid methyl ester polyoxyethylene ether is 5-12, preferably 9-11.
The selection of the polymerization degree of the fatty acid methyl ester polyoxyethylene ether can increase the compatibility of the fatty acid methyl ester polyoxyethylene ether with other components of a formula, and the stability and the storage property of the water-based cleaning agent are increased.
Preferably, in the surfactant, the mass ratio of the fatty acid methyl ester ethoxylate to the linear or branched fatty alcohol-polyoxyethylene ether is 2-3.5, preferably 2.5-3.
The mass ratio of the fatty acid methyl ester ethoxylate to the straight-chain or branched-chain fatty alcohol-polyoxyethylene ether can further increase the compatibility of the fatty acid methyl ester ethoxylate and improve the cleaning capability, and excessive fatty acid methyl ester ethoxylate causes too low viscosity and incomplete oil and dust removal; and too much straight chain or branched chain fatty alcohol-polyoxyethylene ether causes higher system foam, poor cleaning and incomplete cleaning, and easily causes the electrical short circuit of devices.
Preferably, in the water-based cleaning agent, the surfactant is fatty acid methyl ester ethoxylate accounting for 5-6 wt% of the water-based cleaning agent and fatty alcohol-polyoxyethylene ether accounting for 2 wt% of the water-based cleaning agent; preferably, the surfactant is fatty acid methyl ester ethoxylate accounting for 5-6 wt% of the water-based cleaning agent, and linear fatty alcohol-polyoxyethylene ether and branched fatty alcohol-polyoxyethylene ether accounting for 2 wt% of the water-based cleaning agent.
In the water-based cleaning agent, the proper selection and composition of the surfactant can realize the functions of decontamination, dust removal, oil removal and wax removal to the maximum extent.
Preferably, the oil-soluble solvent includes any 1 or a combination of at least 2 of propylene glycol methyl ether, propylene glycol butyl ether, dipropylene glycol methyl ether, propylene glycol n-propyl ether, dipropylene glycol n-propyl ether, and propylene glycol methyl ether acetate.
The propylene glycol ether has strong dissolving capacity, is easy to be decomposed into carbon dioxide and water after being used, and is non-toxic and harmless to organisms. In particular, propylene glycol methyl ether acetate is a low-toxicity high-grade industrial solvent with excellent performance, and has strong dissolving capacity for polar and non-polar substances. The water-based cleaning agent provided by the invention can endow the cleaning agent with good cleaning capability by selecting a proper oil-soluble solvent.
Preferably, the builder comprises any 1 or a combination of at least 2 of ethanolamine, diethanolamine and triethanolamine.
The addition of the builder helps to improve the cleaning capacity and the efficiency of cleaning and decontamination, and especially, the preferred ethanolamine, diethanolamine and triethanolamine can be matched with other components of the cleaning agent to improve the cleaning capacity and the efficiency of cleaning and decontamination. Especially, ethanolamine is selected as a builder, so that the corrosion inhibition effect can be achieved, and the detergent has good safety and compatibility on electronic components.
Preferably, the anti-foaming agent comprises a silicone oil anti-foaming agent. The silicone oil defoaming agent has the advantages of high defoaming speed, long foam inhibition time, no toxicity and no corrosion.
As a specific implementation mode, the water-based cleaning agent comprises the following components in percentage by weight:
as a specific implementation mode, the water-based cleaning agent comprises the following components in percentage by weight:
as a specific implementation mode, the water-based cleaning agent comprises the following components in percentage by weight:
the preparation method of the water-based cleaning agent can adopt conventional mixing and stirring in the field.
The preparation method of the water-based cleaning agent comprises the following steps:
(1) sequentially weighing a surfactant, an oil-soluble solvent, a builder, a defoaming agent and deionized water;
(2) compounding weighed surfactants (matching with different surfactants) and mixing an oil-soluble solvent with the weighed surfactants;
(3) adding weighed builder into the mixed solution, and uniformly mixing;
(4) adding the weighed defoaming agent into the mixed solution, and uniformly mixing;
(5) adding weighed deionized water into the mixed solution, and uniformly mixing to obtain the water-based cleaning agent;
the cleaning agent provided by the invention does not need special environmental conditions under preparation conditions, and can be prepared at normal temperature and normal pressure.
The invention also provides the application of the water-based cleaning agent, and the water-based cleaning agent can be used for cleaning the circuit board, removing the scaling powder in the welding process of the circuit board, and oil substances, wax substances and dust existing on the circuit board, and effectively reducing the phenomena of short circuit and electric connection of the circuit board.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, different surfactants are compounded, and oil-soluble solvents, builders, defoaming agents and other components are matched, so that dust, oil stains and waxy impurities of the circuit board can be effectively removed, and the surface of the circuit board is not damaged. On the other hand, the water-based cleaning agent provided by the invention is green and environment-friendly, does not volatilize toxic solvents easily, is harmless to human bodies, is clean thoroughly and free from residues, and can effectively avoid the risks of short circuit, corrosion and the like after electronic devices are welded.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments.
It should be understood by those skilled in the art that the examples are only for the understanding of the present invention and should not be construed as the specific limitations of the present invention.
Example 1
The water-based cleaning agent comprises the following components in parts by weight:
example 2:
the water-based cleaning agent comprises the following components in parts by weight:
example 3:
the water-based cleaning agent comprises the following components in parts by weight:
example 4:
the water-based cleaning agent comprises the following components in parts by weight:
example 5:
the water-based cleaning agent comprises the following components in parts by weight:
example 6
A water-based cleaning agent contains a nonionic surfactant, and comprises the following components in parts by weight:
comparative example 1
The water-based cleaning agent is different from the water-based cleaning agent in the embodiment 1 in that no FMEE is added, and the FMEE is replaced by isomeric alcohol polyoxyethylene ether in equal mass, and the water-based cleaning agent comprises the following components in parts by weight:
comparative example 2
The water-based cleaning agent is different from the water-based cleaning agent in example 1 in that propylene glycol methyl ether acetate is not added, and the propylene glycol methyl ether acetate and the like are replaced by propylene glycol butyl ether, and the water-based cleaning agent comprises the following components in parts by weight:
comparative example 3
The water-based cleaning agent is different from the water-based cleaning agent in example 1 in that FMEE fatty acid has different carbon numbers and different polymerization degrees, and comprises the following components in parts by weight:
comparative example 4
The water-based cleaning agent is different from the water-based cleaning agent in example 1 in that the heterogeneous alcohol polyoxyethylene ether has different polymerization degrees and comprises the following components in parts by weight:
and (3) performance testing:
the prepared same circuit board is selected to test the ionic pollutant content, the soldering flux content, the oil stain content and the waxy pollutant content of the blank, and then the ionic pollutant content, the soldering flux content, the oil stain content and the waxy pollutant content are tested again after the water-based cleaning agent improved in the embodiment and the comparative example is adopted for cleaning.
(1) And (3) testing the content of ionic pollutants:
extraction solution Resistivity (ROSE) test method: the contents were tested by rinsing the surface of the printed circuit board with 75% isopropyl alcohol plus 25% deionized water (by volume) as the test solution and dissolving the contaminants remaining on the surface of the printed circuit board into the test solution.
(2) Flux content test (halogen content, in chlorine):
the ion chromatography test method comprises the steps of taking 75% isopropanol and 25% deionized water (volume ratio) as a test solution, heating to 80 ℃ to extract flux residues on the surface, and testing the halogen content of the extraction solution.
(3) Oil stain content test
And in the optical microscope method, the circuit board is placed under an optical microscope after being cleaned, and the pollution condition of oil stains is directly observed so as to judge the cleaning degree of the cleaned circuit board.
(5) Waxy contaminant content test
And in the scanning electron microscope observation method, the circuit board is placed under a scanning electron microscope after being cleaned, and the pollution condition of the wax on the surface is directly observed.
(6) Corrosion conditions
And (4) observing the corrosion condition of the surface of the circuit board after the circuit board is cleaned by an optical microscope method.
The test results are shown in Table 1
Table 1 results of performance testing
The applicant states that the present invention is illustrated by the above examples of the process of the present invention, but the present invention is not limited to the above process steps, i.e. it is not meant that the present invention must rely on the above process steps to be carried out. It will be apparent to those skilled in the art that any modification of the present invention, equivalent substitutions of selected materials and additions of auxiliary components, selection of specific modes and the like, which are within the scope and disclosure of the present invention, are contemplated by the present invention.
Claims (8)
1. The water-based cleaning agent is characterized by comprising the following components in percentage by weight:
the surfactant is prepared by compounding fatty acid methyl ester ethoxylate and any 1 or at least 2 of linear chain or branched chain fatty alcohol-polyoxyethylene ether;
the mass ratio of the fatty acid methyl ester ethoxylate to the straight-chain or branched-chain fatty alcohol-polyoxyethylene ether is 2-3.5;
the degree of polymerization of the straight chain or branched chain fatty alcohol-polyoxyethylene ether is 5-12;
the branched fatty alcohol-polyoxyethylene ether is selected from any 1 or at least 2 of heterogeneous dodecyl alcohol polyoxyethylene ether, heterogeneous undecyl alcohol polyoxyethylene ether and heterogeneous tridecyl alcohol polyoxyethylene ether;
the linear fatty alcohol-polyoxyethylene ether is selected from any 1 or at least 2 of laurinol polyoxyethylene ether, palmityl alcohol polyoxyethylene ether, undecyl alcohol polyoxyethylene ether and stearyl alcohol polyoxyethylene ether;
the fatty acid methyl ester ethoxylate is selected from C10-C20 fatty acid methyl ester polyoxyethylene ether;
the polymerization degree of the fatty acid methyl ester polyoxyethylene ether is 5-12;
the oil-soluble solvent is selected from any 1 or combination of at least 2 of propylene glycol methyl ether, propylene glycol butyl ether, dipropylene glycol methyl ether, propylene glycol n-propyl ether, dipropylene glycol n-propyl ether and propylene glycol methyl ether acetate;
the builder is selected from any 1 or combination of at least 2 of ethanolamine, diethanolamine and triethanolamine;
the defoaming agent is selected from silicone oil defoaming agents.
2. The water-based cleaning agent as claimed in claim 1, wherein the degree of polymerization of the linear or branched fatty alcohol-polyoxyethylene ether is 7 to 9.
3. The water-based cleaning agent according to claim 1, wherein the degree of polymerization of the fatty acid methyl ester polyoxyethylene ether is 9 to 11.
4. The water-based cleaning agent according to claim 1, wherein the mass ratio of the fatty acid methyl ester ethoxylate to the linear or branched fatty alcohol-polyoxyethylene ether is 2.5 to 3.
5. The water-based cleaning agent as claimed in claim 1, wherein the surfactant in the water-based cleaning agent is fatty acid methyl ester ethoxylate accounting for 5-6 wt% of the water-based cleaning agent and fatty alcohol-polyoxyethylene ether accounting for 2 wt% of the water-based cleaning agent.
6. The water-based cleaning agent as claimed in claim 5, wherein the surfactant is fatty acid methyl ester ethoxylate accounting for 5-6 wt% of the water-based cleaning agent, and linear fatty alcohol-polyoxyethylene ether and branched fatty alcohol-polyoxyethylene ether accounting for 2 wt% of the water-based cleaning agent.
7. The water-based cleaning agent as claimed in claim 1, wherein the water-based cleaning agent comprises the following components by weight percent:
or the water-based cleaning agent comprises the following components in percentage by weight:
or the water-based cleaning agent comprises the following components in percentage by weight:
8. use of the water-based cleaning agent according to any one of claims 1 to 7, wherein the water-based cleaning agent is used for cleaning a circuit board.
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| CN107312662A (en) * | 2017-07-03 | 2017-11-03 | 中山翰华锡业有限公司 | A kind of scolding tin residue environment-friendlywater-based water-based cleaning agent and its preparation and application method |
| CN107574033A (en) * | 2017-09-04 | 2018-01-12 | 深圳市唯特偶新材料股份有限公司 | Used in electronic industry aqueous cleaning agent |
| CN109810808A (en) * | 2017-11-21 | 2019-05-28 | 蓝思科技（长沙）有限公司 | A kind of mill skin adhesive remover |
| CN108004046A (en) * | 2017-12-21 | 2018-05-08 | 苏州赛源微电子有限公司 | A kind of method for being cleaned by ultrasonic integrated circuit plate |
| CN109881205B (en) * | 2019-04-18 | 2020-12-11 | 广州太润表面处理科技有限公司 | Cleaning agent and preparation method and application thereof |
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| CN111117796A (en) * | 2020-01-17 | 2020-05-08 | 重庆理工大学 | Water-based cleaning agent for high-integration packaging and cleaning method thereof |
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| CN103695950A (en) * | 2013-11-19 | 2014-04-02 | 青岛汇而通商贸有限公司 | Reusable metal equipment cleaning agent |
| CN103627539B (en) * | 2013-12-02 | 2015-09-02 | 深圳市华大电路科技有限公司 | A kind of printed wiring board cleaning agent and using method thereof |
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2017
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