CN103555443A

CN103555443A - Aqueous solder paste cleaning agent for printed circuit board and preparation method for aqueous solder paste cleaning agent

Info

Publication number: CN103555443A
Application number: CN201310523475.4A
Authority: CN
Inventors: 刘青; 马楠
Original assignee: HEFEI CITY HUAMEI PHOTOELECTRIC TECHNOLOGY Co Ltd
Current assignee: HEFEI CITY HUAMEI PHOTOELECTRIC TECHNOLOGY Co Ltd
Priority date: 2013-10-30
Filing date: 2013-10-30
Publication date: 2014-02-05

Abstract

The invention discloses an aqueous solder paste cleaning agent for a printed circuit board. The cleaning agent is prepared from the following raw materials in parts by weight: 3 to 4 parts of fatty alcohol-polyoxyethylene ether, 3 to 4 parts of sodium isopropyl benzene sulfonate, 5 to 6 parts of coconut diethanolamide, 40 to 50 parts of ethanol, 3 to 5 parts of tween 80, 4 to 5 parts of lauryl alcohol, 2 to 3 parts of disodium malate, 2 to 3 parts of acetic acid, 4 to 5 parts of auxiliaries and 100 to 120 parts of de-ionized water. The cleaning agent is high in compatibilization performance, antistatic, anticorrosive, low in loss and high in printing quality, and has a good pH value buffer effect and a remarkable surfactant compounding effect, residual solder paste, a residual adhesive and a solvent can be quickly removed from the printed circuit board, the cost is lowered, time is saved, the reject ratio can be greatly decreased, and a plurality of printed circuit boards with high quality can be quickly manufactured; the auxiliaries can form a protective film on the surface of the printed circuit board to isolate air, prevent the printed circuit board from being corroded by water and other molecules in the atmosphere and prevent oxidation, so that convenience is brought to the next manufacturing process.

Description

A kind of water-based printing circuit card tin cream clean-out system and preparation method thereof

Technical field

The present invention relates to clean-out system field, relate in particular to a kind of water-based printing circuit card tin cream clean-out system and preparation method thereof.

Background technology

Along with the high speed development of unicircuit, the volume of circuit card is more and more less, and electronic component is more and more less, and density is increasing.If the dirt dust of the inside does not clean up in making processes, likely can cause the problems such as short circuit, corrosion, affect the normal operation of circuit card.At present majority circuit plate sanitising agent is all made with organism, and cleaning effect is good, is difficult for causing the problems such as short circuit, corrosion, and still, organic compound not only cost is high, and contaminate environment, damage the ozone layer, harmful to HUMAN HEALTH.Also have minority waterborne cleaning agent, but cleaning performance is limited, has security risk, require further improvement formula, technique, to reach clean thorough, pollution-free, the object of corroding little, healthy, circuit safety, reducing costs.

Summary of the invention

The object of the present invention is to provide a kind of water-based printing circuit card tin cream clean-out system and preparation method thereof, this clean-out system have clean thoroughly, fast, the protection against corrosion of cleaning speed, anlistatig advantage.

Technical scheme of the present invention is as follows:

A circuit card tin cream clean-out system, is characterized in that being made by the raw material of following weight part: fatty alcohol-polyoxyethylene ether 3-4, isopropyl benzene semi-annular jade pendant acid sodium 3-4, lauric acid amide of ethanol 5-6, ethanol 40-50, tween 80 3-5, lauryl alcohol 4-5, sodium malate 2-3, acetic acid 2-3, auxiliary agent 4-5, deionized water 100-120;

Described auxiliary agent is made by the raw material of following weight part: Silane coupling reagent KH-570 2-3, phytic acid 1-2, methyl methacrylate 3-4, oxidation inhibitor 1035 1-2,2-aminoethyl 17 alkenyl imidazoline 1-2, ethanol 15-18; Preparation method mixes Silane coupling reagent KH-570, phytic acid, ethanol, is heated to 60-70 ℃, stirs after 20-30 minute, then adds other remaining component, is warming up to 80-85 ℃, stirs 30-40 minute, obtains.

The preparation method of described water-based printing circuit card tin cream clean-out system, it is characterized in that comprising the following steps: deionized water, fatty alcohol-polyoxyethylene ether, isopropyl benzene semi-annular jade pendant acid sodium, lauric acid amide of ethanol, ethanol, tween 80, lauryl alcohol, sodium malate, acetic acid are mixed, under 1000-1200 rev/min of stirring, speed with 6-8 ℃/minute is heated to 60-70 ℃, add other remaining components, continue to stir 15-20 minute, obtain.

Beneficial effect of the present invention

Clean-out system compatibilization of the present invention is strong, antistatic, protection against corrosion, pH value good buffer effect, surfactant compound successful, can remove fast tin cream unnecessary on printed circuit board (PCB), tackiness agent and solvent, still less, printing quality is better, reduce costs in loss, thereby save time, reduces greatly scrap rate, and produce faster more, the printed circuit board (PCB) of better quality.Auxiliary agent of the present invention can form protective membrane at circuit board surface, and isolated air, prevents water and other molecule open circuit potential plates in atmosphere, anti-oxidant, facilitates next step manufacture craft to carry out.

Embodiment

A circuit card tin cream clean-out system, by following weight part (kilogram) raw material make: fatty alcohol-polyoxyethylene ether 4, isopropyl benzene semi-annular jade pendant acid sodium 3, lauric acid amide of ethanol 5.4, ethanol 44, tween 80 4, lauryl alcohol 4.6, sodium malate 2.5, acetic acid 2.5, auxiliary agent 4.5, deionized water 110;

Described auxiliary agent by following weight part (kilogram) raw material make: Silane coupling reagent KH-570 2.5, phytic acid 1.5, methyl methacrylate 3.5, oxidation inhibitor 1,035 1.5,2-aminoethyl 17 alkenyl imidazolines 1.5, ethanol 16; Preparation method mixes Silane coupling reagent KH-570, phytic acid, ethanol, is heated to 65 ℃, stirs after 25 minutes, then adds other remaining component, is warming up to 83 ℃, stirs 35 minutes, obtains.

The preparation method of described water-based printing circuit card tin cream clean-out system, comprise the following steps: deionized water, fatty alcohol-polyoxyethylene ether, isopropyl benzene semi-annular jade pendant acid sodium, lauric acid amide of ethanol, ethanol, tween 80, lauryl alcohol, sodium malate, acetic acid are mixed, under 1100 revs/min of stirrings, with the speed of 7 ℃/minute, be heated to 65 ℃, add other remaining components, continue to stir 19 minutes, obtain.

This water-based printing circuit card tin cream clean-out system is used for cleaning copper printed circuit board (PCB), through 10 times of amplification detection of Olympus microscope, surface is clean without pollutents such as obvious rosin, scolding tin, greasy dirt, fingerprints, cleaning solution resistivity is greater than 2*106 Ω .cm, First Pass Yield reaches 85%, is better than normal level.

Claims

1. a water-based printing circuit card tin cream clean-out system, is characterized in that being made by the raw material of following weight part: fatty alcohol-polyoxyethylene ether 3-4, isopropyl benzene semi-annular jade pendant acid sodium 3-4, lauric acid amide of ethanol 5-6, ethanol 40-50, tween 80 3-5, lauryl alcohol 4-5, sodium malate 2-3, acetic acid 2-3, auxiliary agent 4-5, deionized water 100-120;

2. the preparation method of water-based printing circuit card tin cream clean-out system according to claim 1, it is characterized in that comprising the following steps: deionized water, fatty alcohol-polyoxyethylene ether, isopropyl benzene semi-annular jade pendant acid sodium, lauric acid amide of ethanol, ethanol, tween 80, lauryl alcohol, sodium malate, acetic acid are mixed, under 1000-1200 rev/min of stirring, speed with 6-8 ℃/minute is heated to 60-70 ℃, add other remaining components, continue to stir 15-20 minute, obtain.