Water-based halogen-free resin-free antimicrobial no-clean soldering flux
A no-clean, flux technology
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[0027] 20 parts of activator, 4 parts of surfactant, 4 parts of film former, 0.08 part of corrosion inhibitor, 1 part of antioxidant, 0.5 part of antibacterial agent, 0.4 part of organic solvent and the balance of deionized water.
[0028] Wherein, the activator is compounded with DL-malic acid, succinic acid, phthalic acid, citric acid and lactic acid in a mass ratio of 2:1:0.5:1:1;
[0029] The surfactant is a mixture of fatty acid methyl ester ethoxylate and isomeric tridecyl alcohol ethoxylate with a mass ratio of 1:1;
[0030] The corrosion inhibitor is benzotriazole (BTA);
[0031] Described antioxidant is t-butyl hydroquinone;
[0032] The film-forming agent is a mixture of anionic polyacrylamide and polyethylene glycol 3000 with a mass ratio of 1:2;
[0033] Described organic solvent is the mixture that absolute ethanol, acetamide and ethylene glycol ether are compounded with a mass ratio of 1:2:2;
[0034] The antibacterial agent is chitin.
Embodiment
[0036] Make 100g of flux, by mass, including 20 parts of activator (DL-malic acid, succinic acid, phthalic acid, citric acid and lactic acid are compounded at a mass ratio of 2:1:0.5:1:1) ; 4 parts of surfactant (fatty acid methyl ester ethoxylate and isomeric tridecyl alcohol ethoxylate mixed in a mass ratio of 1:1); 4 parts of film forming agent (anionic polyacrylamide and polyethylene glycol 3000 mixed with a mass ratio of 1:2); corrosion inhibitor (benzotriazole BTA) 0.08 parts; antioxidant (tert-butyl hydroquinone) 1 part; antibacterial agent (chitin) 0.5 part, 0.4 part of organic solvent (a mixture of absolute ethanol, acetamide and ethylene glycol ether in a mass ratio of 1:2:2); the balance is deionized water;
[0037] Weigh the raw materials of each component according to the weight ratio. At room temperature, add the co-solvent into a clean enamel kettle with stirring, first add the insoluble raw materials, stir for half an hour, then add other raw materials in turn,...
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