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Special cleaning agent for flexible printed circuit board as well as preparation method and application of special cleaning agent

A technology for flexible circuit boards and cleaning agents, applied in cleaning methods, preparation of detergent mixture compositions, surface active detergent compositions, etc., can solve the impact on human health, affect the service life of circuit boards, and damage the metal of circuit boards and other problems, to achieve the effect of stability without delamination, improved cleaning ability, and strong cleaning ability

Inactive Publication Date: 2018-05-29
广东山之风环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The cleaning agent uses a certain amount of silane coupling agent, which will cause a certain degree of corrosion damage to the metal of the circuit board and affect the service life of the circuit board.
CN 106479761 A patent discloses a water-based cleaning agent for circuit boards. The main components of the cleaning agent include water-soluble alcohol ethers, non-water-soluble diacyl esters, defoamers, non-ionic organic reducing agents and non-ionic organic Saponification agent, a variety of alcohol ethers used in it will have a certain impact on human health

Method used

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  • Special cleaning agent for flexible printed circuit board as well as preparation method and application of special cleaning agent
  • Special cleaning agent for flexible printed circuit board as well as preparation method and application of special cleaning agent
  • Special cleaning agent for flexible printed circuit board as well as preparation method and application of special cleaning agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment example 1

[0020] A special cleaning agent for flexible circuit boards, including: 3% fatty alcohol polyoxyethylene ether sulfate, 12% coconut oil fatty acyldiethanolamine, 2% sodium pyrophosphate, 3% triethanolamine, and sodium polyacrylate 3%, ethanol 10%, n-butanol 8%, benzotriazole 3%, deionized water balance.

[0021] The preparation method step of this cleaning agent is as follows:

[0022] 1) taking each raw material by weight for subsequent use;

[0023] 2) Mix deionized water, sodium pyrophosphate, sodium polyacrylate, and benzotriazole into a blender, and stir for 10 minutes at normal temperature and pressure;

[0024] 3) Pour fatty alcohol polyoxyethylene ether sulfate, coconut oil fatty acid acyl diethanolamine, triethanolamine, ethanol, and n-butanol into the mixing tank, and continue stirring for 20 minutes to obtain the product.

Embodiment example 2

[0026] A cleaning agent for flexible circuit boards, prepared from the following raw materials in weight percentage: 5% fatty alcohol polyoxyethylene ether sulfate, 10% coconut oil fatty acyldiethanolamine, 3% sodium pyrophosphate, 5% triethanolamine, poly Sodium acrylate 2%, polyethylene glycol 10%, propylene glycol butyl ether 10%, benzotriazole 2%, deionized water balance.

[0027] The preparation method step of this cleaning agent is as follows:

[0028] 1) taking each raw material by weight for subsequent use;

[0029] 2) Mix deionized water, sodium pyrophosphate, sodium polyacrylate, and benzotriazole into a blender, and stir for 15 minutes at normal temperature and pressure;

[0030] 3) Pour fatty alcohol polyoxyethylene ether sulfate, coconut oil fatty acyl diethanolamine, triethanolamine, polyethylene glycol, and propylene glycol butyl ether into the mixing tank, and continue stirring for 15 minutes to obtain the product.

Embodiment example 3

[0032] A cleaning agent for flexible circuit boards, prepared from the following raw materials in weight percentage: 4% fatty alcohol polyoxyethylene ether sulfate, 15% coconut oil fatty acyldiethanolamine, 2% sodium pyrophosphate, 4% triethanolamine, poly Sodium acrylate 4%, ethylene glycol methyl ether 8%, isopropanol 10%, benzotriazole 3%, deionized water balance.

[0033] The preparation method step of this cleaning agent is as follows:

[0034] 1) taking each raw material by weight for subsequent use;

[0035] 2) Mix deionized water, sodium pyrophosphate, sodium polyacrylate, and benzotriazole into a blender, and stir for 20 minutes at normal temperature and pressure;

[0036] 3) Continue to pour fatty alcohol polyoxyethylene ether sulfate, coconut oil fatty acid acyl diethanolamine, triethanolamine, ethylene glycol methyl ether, and isopropanol into the mixing tank, and continue stirring for 10 minutes to obtain the product.

[0037] How to use: Dilute the flexible cir...

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Abstract

The invention belongs to the technical field of a cleaning agent for a circuit board, and particularly relates to a special cleaning agent for a flexible printed circuit board as well as a preparationmethod and an application of the special cleaning agent. The special cleaning agent is prepared from components in percentage by weight as follows: 3%-5% of fatty alcohol polyoxyethylene ether sulfate, 10%-15% of coconut oil fatty diethanol amide, 1%-5% of sodium pyrophosphate, 2%-5% of triethanolamine, 2%-5% of sodium polyacrylate, 10%-20% of alcohol ether solvents, 2%-3% of benzotriazole and the balance of deionized water. The cleaning agent is simple to prepare and low in cost, has efficient cleaning capacity for a soldering flux and dirt of the flexible printed circuit board, and containsno chemical components harmful to the atmospheric environment; meanwhile, soldering points and metallic copper of the circuit board can be effectively protected from being corroded and changing color; the cleaning agent is applicable to cleaning of the printed circuit board, and is particularly applicable to cleaning of the flexible printed circuit board with soldering flux pollutant residues.

Description

technical field [0001] The invention belongs to the technical field of cleaning agents for circuit boards, and in particular relates to a special cleaning agent for flexible circuit boards and its preparation method and application. Background technique [0002] With the rapid development of electronic products in the direction of miniaturization, high density and high reliability, more and more pollutants are introduced in the manufacturing process of electronic products. If these pollutants are not removed in time and effectively, it may cause Circuit board open circuit, short circuit, corrosion and other problems affect the normal operation of the circuit board. [0003] At present, the most widely used traditional cleaning circuit board technology is the cleaning agent containing freon (abbreviated as CFC-113). This type of cleaning agent has the advantages of good chemical and thermal stability, moderate solubility, good selectivity, low viscosity and surface tension, ...

Claims

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Application Information

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IPC IPC(8): C11D1/83C11D3/06C11D3/30C11D3/37C11D3/20C11D3/28C11D3/60C11D11/00
CPCC11D1/83C11D3/0073C11D3/06C11D3/201C11D3/2017C11D3/2068C11D3/28C11D3/30C11D3/3707C11D3/3765C11D1/29C11D1/66C11D2111/44C11D2111/46C11D2111/22
Inventor 董恩莲阳文
Owner 广东山之风环保科技有限公司
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