Formular and process of polymer powder chemical Co-plating
A technology of polymer powder and electroless plating, which is applied in the direction of liquid chemical plating, metal material coating technology, coating, etc., can solve the problems of high density, influence on popularization and application, and weight gain of equipment, and achieve good particle dispersion and easy Manipulation and control, non-perishable effect
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[0024] First, the polymer powder is pretreated by degreasing, coarsening, sensitization, activation, etc., and then electroless cobalt plating is performed.
[0025] 1. Coarsening solution formula and process conditions:
[0026] Potassium dichromate 30 g / L
[0027] Sulfuric acid 477ml / L
[0028] Phosphoric Acid (85%) 50ml / L
[0029] Time (t) 50 minutes
[0030] Temperature (T) 65℃
[0031] 2. Formula and process conditions of sensitizing solution:
[0032] Stannous chloride 40 g / L
[0033] Hydrochloric acid 100ml / L
[0034] temperature room temperature
[0035] 3. Activation solution formula and process conditions:
[0036] Palladium Chloride 0.2 g / L
[0037] Stannous Chloride 15 g / L
[0038] Hydrochloric acid 200ml / L
[0039] temperature room temperature
[0040] 4. Formula of electroless cobalt plating solution:
[0041] Cobalt sulfate 30 g / l,
[0042] Sodium hypophosphite 30 g / l,
[0043] Sodium Potassium Tartrate 25 g / L
[0044] Boric acid 15 g / l.
[0045...
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