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Neutral water-based cleaning agent for cleaning PCB and preparation method of neutral water-based cleaning agent

A PCB board, neutral water technology, applied in the directions of detergent compositions, detergent compounding agents, detergent composition solvents, etc., can solve the problems of PCB board corrosion, toxicity and harm, waste of energy, etc., and achieve good cleaning effect and cleanliness. Good efficiency and improved cleaning effect

Inactive Publication Date: 2021-03-19
苏州柯仕达电子材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Solvent-based cleaning agents are low in cost, decontaminate quickly, and have a good low-temperature washing effect, but most of them are toxic and harmful and pollute the environment; alkaline water-based cleaning agents are non-toxic and tasteless, safe and environmentally friendly, but they are prone to corrosion on PCB boards and require Second or multiple cleaning processes, waste of energy and high cost

Method used

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  • Neutral water-based cleaning agent for cleaning PCB and preparation method of neutral water-based cleaning agent
  • Neutral water-based cleaning agent for cleaning PCB and preparation method of neutral water-based cleaning agent
  • Neutral water-based cleaning agent for cleaning PCB and preparation method of neutral water-based cleaning agent

Examples

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Comparison scheme
Effect test

Embodiment 1

[0040] A neutral water-based cleaning agent for cleaning PCB boards, the dosage of each component is as follows:

[0041]

[0042] Preparation method: add deionized water into the reactor, then put in other raw materials, adjust the pH value to 7.0 after raising the temperature to 40°C, and stir at 800rpm for 15min to obtain the product.

Embodiment 2

[0044] A neutral water-based cleaning agent for cleaning PCB boards, the dosage of each component is as follows:

[0045]

[0046] Preparation method: add deionized water into the reactor, then put in other raw materials, adjust the pH value to 8.0 after raising the temperature to 40°C, and stir at 800rpm for 30min to obtain the product.

Embodiment 3

[0048] A neutral water-based cleaning agent for cleaning PCB boards, the dosage of each component is as follows:

[0049]

[0050] Preparation method: add deionized water into the reactor, then put in other raw materials, adjust the pH value to 7.0 after raising the temperature to 40°C, and stir at 800rpm for 20min to obtain the product.

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PUM

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Abstract

The invention relates to an electronic industry cleaning agent, in particular to a neutral water-based cleaning agent for cleaning a PCB and a preparation method of the neutral water-based cleaning agent. The invention discloses a neutral water-based cleaning agent for cleaning a PCB. The neutral water-based cleaning agent comprises the following preparation raw materials in parts by mass: 0.5-10part of a surfactant; 3-15 parts of a builder; 0.5-4 part of a corrosion inhibitor; 0.1-1 part of a defoaming agent; 50-100 parts of deionized water; the invention further discloses a preparation method of the neutral water-based cleaning agent for cleaning the PCB, which comprises the following steps: adding the surfactant, the builder, the corrosion inhibitor and the defoamer into deionized water according to a mass ratio, regulating the pH value to 7.0-8.0, and stirring at 40 DEG C for 15-30 minutes. The prepared neutral water-based cleaning agent has the advantages of being good in cleaning effect, high in cleaning efficiency and low in corrosivity to a PCB, and the preparation method is simple, easy to implement and convenient to operate.

Description

technical field [0001] The application relates to cleaning agents for the electronics industry, more specifically, it relates to a neutral water-based cleaning agent for cleaning PCB boards and a preparation method thereof. Background technique [0002] PCB board is an important electronic component of electronic equipment such as servers. It is a support for electronic components and a carrier for electrical connections of electronic components. It is widely used in automotive electronics, communication equipment, medical electronics, industrial control equipment, clean energy, and intelligent security. , aerospace and military products and many other fields. During the application process of the PCB board, electronic components need to be soldered to it with the help of flux, but after the soldering is completed, the active components of the excess flux will cause ion pollution, reduce the surface insulation resistance of the PCB component, and increase corrosion. Especia...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11D1/83C11D3/20C11D3/08C11D3/30C11D3/28C11D3/04C11D3/36C11D3/44C11D3/60
CPCC11D1/04C11D1/22C11D1/29C11D1/345C11D1/66C11D1/72C11D1/83C11D3/042C11D3/08C11D3/201C11D3/2068C11D3/2079C11D3/28C11D3/30C11D3/362C11D3/43
Inventor 李春方宋波程龙刘晓燕
Owner 苏州柯仕达电子材料有限公司
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