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Water-based flexible circuit board cleaning agent and preparation method thereof

A technology for flexible circuit boards and cleaning agents, applied in the preparation of detergent mixture compositions, cleaning methods and utensils, cleaning methods using liquids, etc., can solve the problems of shortening the life of cleaning agents and affecting production efficiency, and achieve cleaning power Excellent, long service life, low VOC content

Inactive Publication Date: 2020-01-10
ITW SPECIALTY MATERIALS (SUZHOU) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the published patent CN108207087A, it is mentioned to use phosphate ester salt, sulfate ester salt, zinc chloride, fatty alcohol polyoxyethylene ether sodium sulfate, tolyltriazole, hydrochloric acid, EDTA, emulsifier, ionic surfactant, Ionized water and other ingredients use ultrasonic method to remove the flux residue on the surface of the flexible circuit board, soak in the ethanol solution and ultrasonically for 1-5 minutes, and then use the above cleaning agents to clean the flexible circuit board; although the above formula can remove the flux, but in the formula All of them are surfactants and chelating agents, which greatly shorten the life of the cleaning agent and seriously affect the production efficiency

Method used

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  • Water-based flexible circuit board cleaning agent and preparation method thereof
  • Water-based flexible circuit board cleaning agent and preparation method thereof
  • Water-based flexible circuit board cleaning agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The components of the water-based flexible circuit board cleaning agent, in parts by weight, include 30 parts of alcohol ether solvent, 20 parts of N-ethyl-2-pyrrolidone, 5 parts of ionic surfactant, 1.5 parts of auxiliary agent, 3 parts of alcohol amine Parts, wherein the components in alcohol ether solvents, by weight parts, include: 1 part of dipropylene glycol monomethyl ether, 1 part of dipropylene glycol propyl ether; the components in alcohol amines, by weight parts, include 2- Amino-2-methyl-1-propanol is 1 part, monoisopropanolamine is 0.5 part; ionic surfactant components, by weight, include 1 part of sodium lauryl sulfate, hexadecyl 1.5 parts of sulfophenoxybenzenesulfonic acid disodium salt; the components of the additives, in parts by weight, include 1 part of benzotriazole and 1 part of sodium gluconate.

[0024] The preparation method is as follows: under the condition of rotating speed of 500r / m, add alcohol ether solvent and N-ethyl-2-pyrrolidone into t...

Embodiment 2

[0026] The components of the water-based flexible circuit board cleaning agent, in parts by weight, include 40 parts of alcohol ether solvent, 10 parts of N-ethyl-2-pyrrolidone, 10 parts of ionic surfactant, 1.5 parts of auxiliary agent, 5 parts of alcohol amine Parts, wherein the components in alcohol ether solvents, by weight parts, include: 1 part of dipropylene glycol monomethyl ether, 1 part of dipropylene glycol propyl ether; the components in alcohol amines, by weight parts, include 2- 1 part of amino-2-methyl-1-propanol, 0.2 part of N,N-dimethylcyclohexylamine; ionic surfactant component, by weight, including 1 part of sodium lauryl sulfate 1.5 parts of cetyl sulfophenoxybenzene sulfonic acid disodium salt; the components of the auxiliary agent, in parts by weight, include 1 part of benzotriazole and 1 part of sodium gluconate.

[0027] The preparation method is as follows: under the condition of rotating speed of 500r / m, add alcohol ether solvent and N-ethyl-2-pyrroli...

Embodiment 3

[0029] The components of the water-based flexible circuit board cleaning agent, in parts by weight, include 30 parts of alcohol ether solvents, 20 parts of tetrahydrofurfuryl alcohol, 5 parts of ionic surfactants, 1.5 parts of additives, and 3 parts of alcohol amines, of which alcohol ether The components in the solvent, by weight, include: 1 part of dipropylene glycol monomethyl ether, and 1 part of dipropylene glycol propyl ether; the components in the alcohol amine, by weight, include 2-amino-2-methyl Base-1-propanol is 1 part, monoisopropanolamine is 0.5 part; ionic surfactant components, by weight, include 1 part of sodium lauryl sulfate, hexadecylsulfophenoxy 1.5 parts of disodium benzenesulfonic acid; the components of the auxiliary agent, in parts by weight, include 1 part of benzotriazole and 1 part of sodium gluconate.

[0030] The preparation method is as follows: under the condition of rotating speed of 500r / m, add alcohol ether solvent and tetrahydrofurfuryl alcoh...

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Abstract

The invention discloses a water-based flexible circuit board cleaning agent, which comprises the following components: 30-50% of alcohol ether solvent; 0-10% tetrahydrofurfuryl alcohol; 0-10% of N-ethyl pyrrolidone; 3-16% of alcohol amine; 1-3% of an auxiliary agent; 5-15% of an ionic surfactant and the balance of deionized water. The water-based flexible circuit board cleaning agent prepared by the invention is a weakly alkaline concentrated cleaning agent, does not contain any fluorocarbon solvent and halogenated hydrocarbon solvent in the formula, has low VOC volatile organic matter content, small odor, low toxicity, convenient use and safe operation. Through the ultrasonic cleaning method, the cleaning efficiency of a flexible circuit board can be obviously improved, and the reliability is improved.

Description

technical field [0001] The invention relates to the technical field of cleaning agents for flexible circuit boards, in particular to a water-based cleaning agent for flexible circuit boards and a preparation method thereof. Background technique [0002] With the development of the electronic information industry in the direction of miniaturization, high density and high reliability, more and more flux residues are produced in the process of electronic self-assembly. If these pollutants are not removed in time, with the external environment Corrosion will reduce the quality and reliability of the product. Among them, the flexible circuit board is a printed circuit made of a flexible insulating substrate, which has excellent electrical properties and can meet the design needs of smaller and higher-density installations. A large amount of flux residues will be generated during the self-assembly process; due to Common circuit board material differences lead to the preferred ult...

Claims

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Application Information

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IPC IPC(8): C11D1/37C11D3/44C11D3/20C11D3/28C11D3/30C11D3/22C11D3/60C11D11/00B08B3/08B08B3/12
CPCC11D1/37C11D3/43C11D3/2068C11D3/2096C11D3/28C11D3/30C11D3/221B08B3/08B08B3/12C11D1/146C11D1/24C11D2111/22
Inventor 张呈波范从国秦旺洋
Owner ITW SPECIALTY MATERIALS (SUZHOU) CO LTD
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