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A kind of degumming composition and its preparation method and application

A composition and degumming technology, applied in the direction of detergent composition, non-surface active detergent composition, organic non-surface active detergent composition, etc., can solve the problems of high toxicity, corrosion of PCB board substrate, etc., and achieve penetration Strong, low cost, short degumming time effect

Inactive Publication Date: 2020-11-03
GUANGDONG UNIV OF PETROCHEMICAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, chlorinated hydrocarbon solvents such as trichlorethylene are used for washing, but on the one hand, this detergent is highly toxic, and on the other hand, it has a corrosive effect on the substrate of the PCB board. At present, there is no industrial cleaning agent for red gum. Remove agent

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0022] The base material is PCB, and the coating on the PCB is red glue. The thickness of the red glue is 3mm.

[0023] The degumming composition formula is as follows:

[0024] raw material Mass ratio (%) Dimethyl carbonate 21 Diethylene glycol monohexyl ether 27 Diethylene glycol monobutyl ether 47 water 5

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PUM

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Abstract

The invention discloses degumming composition. The degumming composition comprises components in percentage by mass as follows: 21% of dimethyl carbonate, 27% of diethylene glycol monohexyl ether, 47%of ethylene glycol monobutyl ether and 5% of water. The degumming composition is low in cost, short in degumming time and high in seepage force and degumming effect, produces little pollution, is non-corrosion to a matrix and is free of dead angles and residues, and by means of the degumming composition, technical support can be provided for development of an industrial cleaner.

Description

technical field [0001] The invention belongs to the field of industrial cleaning, and more specifically relates to a degumming composition and its preparation method and application. Background technique [0002] The parts of the circuit board are usually fixed with "red glue". Red glue is a kind of polyolefin compound, usually red, and sometimes yellow. It is widely used as a SMT material in the field of circuit boards. How to make the red gum come off more effectively is an industrial problem. [0003] In the prior art, chlorinated hydrocarbon solvents such as trichlorethylene are used for washing, but on the one hand, this detergent is highly toxic, and on the other hand, it has a corrosive effect on the substrate of the PCB board. At present, there is no industrial cleaning agent for red gum. Remover. Contents of the invention [0004] The object of the present invention is to provide a degumming composition according to the deficiencies in the prior art. The degumm...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C11D7/60C11D7/26
CPCC11D7/263C11D7/266
Inventor 刘卫兵张阳陈翠谭华
Owner GUANGDONG UNIV OF PETROCHEMICAL TECH
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