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Neutral cleaning agent and preparation method thereof

A cleaning agent and neutral water technology, applied in the direction of detergent compounding agent, detergent composition, chemical instruments and methods, etc., can solve the problems of high surface tension, poor wettability of narrow gaps, etc., to reduce surface tension, good Cleaning effect, effect of improving washing ability

Inactive Publication Date: 2012-04-04
英泰沃斯(苏州)新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is: to overcome the shortcomings of existing water-based cleaning agents, such as relatively large surface tension and poor wettability to narrow gaps, to provide a neutral water-based cleaning agent and its preparation method, combined with ultrasonic cleaning and high-pressure spraying Drench cleaning can remove dust, grease and resin residues. The cleaning agent has strong wettability and permeability, and has a good cleaning effect on small gaps

Method used

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  • Neutral cleaning agent and preparation method thereof
  • Neutral cleaning agent and preparation method thereof
  • Neutral cleaning agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] Weigh respectively fatty alcohol alkoxy surfactant (BASF Plurafac LF 400) 5g, fatty alcohol polyoxyethylene ether surfactant (BASF Lutensol TO8) 10g, polyether surfactant (BASF Pluronic PE 6120) 10g, Sodium dodecylbenzene sulfonate 5g, butyl glycol ether 30g, isopropanol 20g, defoamer (Dow Chemical TERGITOL L-61) 2g, then add the above-mentioned raw materials in the stirrer. 458.7 g of deionized water was added into the stirrer, and then the resulting mixture was stirred for 30 minutes at a stirring speed of 100 rpm. Add 458.7g deionized water, 0.1g tetrasodium ethylenediaminetetraacetate, 0.5g rust and corrosion inhibitor (5-methylbenzotriazole and sodium silicate ratio of 5: 1 mixture) in the stirrer , and then continue to stir the resulting mixture at a stirring speed of 100 rpm for 2.5 hours until uniformly mixed. Get sample 1#.

[0059] Using PHS-3C precision PH meter (Shanghai Jinmai Instrument Co., Ltd.), DDS-307 conductivity meter (Shanghai Jinmai Instrument C...

Embodiment 2-3

[0061] In Example 2-3, the cleaning agent was prepared using basically the same process conditions as in Example 1, and the changed material parameters are shown in Table 1.

[0062] Table 1

[0063]

[0064] Adopt the method identical with embodiment 1 to measure, and the pH of sample 2# is 7.8, and conductivity is 1.23 μ s, and specific gravity is 1.02 g / ml; The pH of sample 3 # is 7.5, and conductivity is 1.2 μ s, and specific gravity is 1.02 g / ml ml.

Embodiment 4

[0066] Sample 3CTI certification testing of RoHS six hazardous substances

[0067] testing base

[0068]

[0069] Test results

[0070] Test items

content

Lead (Pb)

N.D.

Cadmium (Cd)

N.D.

Mercury (Hg)

N.D.

Hexavalent Chromium (Cr(VI))

N.D.

Polybrominated biphenyls (PBBs)

N.D.

Polybrominated diphenyl ethers (PBDEs)

N.D.

[0071] Note: -N.D. = not detected (less than method detection limit)

[0072] -mg / kg=ppm=parts per million

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PUM

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Abstract

The invention provides a neutral water-based cleaning agent and a preparation method thereof. The neutral water-based cleaning agent comprises the following components in percentage by mass: 0.5-1.5%, preferably 1%, of aliphatic alcohol alkoxy surfactant, 1-5%, preferably 3%, of aliphatic alcohol polyoxyethylene ether surfactant, 1-5%, preferably 3%, of ployether surfactant, and 0.5-1%, preferably 0.7%, of linear alkyl benzene sodium sulfonate. In the invention, as nonionic surfactants are compounded with anionic surfactants, surface tension of the cleaning agent is reduced, and pH of the cleaning agent is kept neutral; the neutral water-based cleaning agent disclosed by the invention has a good cleaning effect on polar and nonpolar pollutants, and can achieve an unexpected beneficial effect in cleaning slits by adopting physical cleaning means such as ultrasonic cleaning, high-pressure spraying, brushing and the like.

Description

technical field [0001] The invention relates to a cleaning agent and a preparation method thereof, in particular to a low-foaming neutral cleaning agent and a preparation method thereof, which are suitable for the production of sensitive devices such as liquid crystal displays (LCDs), organic light-emitting displays (OLEDs) and optical lenses. cleaning in process. Background technique [0002] Currently, there are two types of cleaners on the market, solvent-based cleaners and water-based cleaners. Generally, solvent-based cleaning agents commonly used in the market usually contain fast-volatile organic solvents. Although they have strong cleaning capabilities, they can deplete ozone, affect the environment, and endanger human health. They are expensive, highly toxic, flammable and explosive, and difficult to operate. safety and other shortcomings. However, commonly used water-based cleaning agents have high surface tension and poor wettability to narrow gaps. Some residue...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11D1/83C11D3/60C11D3/30C11D3/20
Inventor 熊勇张小蓉韩世忠
Owner 英泰沃斯(苏州)新材料有限公司
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