Water-based printed circuit board polar material cleaning agent and preparation method thereof

A technology for printed circuit boards and polar substances, applied in the field of cleaning agents, can solve the problems of limited cleaning effect, affecting the normal operation of circuit boards, polluting the environment, etc., and achieve excellent cleaning effect and excellent solvency

Inactive Publication Date: 2014-01-29
合肥市华美光电科技有限公司
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AI-Extracted Technical Summary

Problems solved by technology

If the dirt and dust inside are not cleaned during the production process, it may cause problems such as short circuit and corrosion, which will affect the normal operation of the circuit board
At present, most circuit board cleaners are made of organic substances, which have good cleaning effect and are not easy to cause problems such as short circuit and corrosion. However, organic compounds are...
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Abstract

The invention provides a water-based printed circuit board polar material cleaning agent. The cleaning agent is prepared from the following raw materials in parts by weight: 30-35 parts of dichloroperfluoropropane, 10-13 parts of dimethicone, 10-15 parts of sodium coconut oleate, 2-3 parts of sodium alkyl benzene sulfonate, 3-4 parts of isopropyl myristate, 30-40 parts of propylene glycol, 3-4 parts of sodium carbonate, 2-3 parts of gluconic acid, 20-30 parts of ethanol, 4-5 parts of auxiliary and 100-120 parts of deionized water. The cleaning agent has the beneficial effects that the cleaning agent uses dichloroperfluoropropane, propylene glycol and the like, has various additive surfactants, forms emulsion with water, has excellent capability of dissolving rosin and organic compounds, has excellent cleaning effects on polar materials, can achieve cleaning without dead corners, and is suitable for high-precision circuit board washing; the auxiliary can form a protective film on the surface of the circuit board to isolate air to prevent water and other molecules in the air from corroding the circuit board; the cleaning agent is resistant to oxidation, prevents short circuit and is convenient for operation of the next preparation process.

Application Domain

Technology Topic

Sodium acid carbonateSilicone fluid +18

Examples

  • Experimental program(1)

Example Embodiment

[0010] A water-based printed circuit board polar substance cleaning agent, made from the following parts by weight (kg) of raw materials: dichloropentafluoropropane 32, simethicone 12, sodium coconut oil 13, sodium alkylbenzene sulfonate 2.5. Isopropyl myristate 3.5, propylene glycol 36, sodium carbonate 3.5, gluconic acid 2.6, ethanol 26, additives 4.5, deionized water 110;
[0011] The auxiliary agent is made of the following parts by weight (kg) of raw materials: silane coupling agent KH-570 2.6, phytic acid 1.6, n-butyl methacrylate 3.6, 2.4.6-tris(dimethylaminomethyl) Phenol 1.6, benzoic acid monoethanolamine 2.6, antioxidant 1035 1.6, ethanol 16; the preparation method is to mix silane coupling agent KH-570, phytic acid, ethanol, heat to 65°C, stir for 25 minutes, and then add other remaining Ingredients, heat up to 83°C, stir for 36 minutes, and get ready.
[0012] The preparation method of the water-based printed circuit board polar substance cleaning agent includes the following steps: deionized water, dimethyl silicone oil, sodium coconut oil, sodium alkylbenzene sulfonate, isopropyl myristate, propylene glycol , Sodium carbonate, gluconic acid, and ethanol are mixed, heated to 55°C at a rate of 7°C/min under 900 rpm stirring, add other remaining ingredients, and continue to stir for 18 minutes to obtain.
[0013] This water-based printed circuit board polar substance cleaning agent is used to clean copper printed circuit boards. After 10 times magnification inspection by Olympus microscope, the surface is clean without obvious contaminants such as rosin, solder, oil, fingerprints, and the resistivity of the cleaning solution is greater than 2*106Ω.cm, the first pass rate reaches 84%, which is better than the normal level.
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Description & Claims & Application Information

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the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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