Plastic plating chemical modification

Plastic plating for the corresponding salt solution of pure metal, and other relevant solution with the plating solution in between two electrodes, after electrify, metal cation swam back to the cathode, and metal ions on the cathode metal atoms, attached to the injection molding products processing method on the surface of a layer. Who can be plated to the metal to metal decorative materials, and can be plating on plastic. But it can be plated plastic varieties is not much, mainly because the plastic on the surface of the electrical conductivity is poor.

chemical roughening method is chemical etching liquid corrosion coating on plastic surface to make it into a kind of methods of sand. Fluid of different plastic choose different coarsening. Brush available drum roll grinding, polishing processing, emery paper polishing, sandblasting processing methods, etc. Simple mechanical coarsening is only applicable to shapes of plastic parts, and the complex shape of plastic parts, can only use chemical roughening method.

plastic is not conductive, mostly to the plating, must let its electrical conductivity, such ability can be plastic as a cathode and attract metal cation and forming a metal layer. Min-hwa purpose make plastic parts surface adsorption layer easily oxidized substances, when activated, REDOX reaction, formation have catalytic effect on the plastic parts of expensive metal film, can be used as the reduction material min-hwa has a lot of.

plastic surface activation treatment is in the form a layer of conductive film, make plastic with conductive function, activation is processed by liquid activation and sensitization plastic adsorption on the surface of the REDOX reaction of tin (ii), back into the plastic surface metal film.

after activation treatment of plastic surface has a layer of film adhesion, has a certain electrical conductivity, but the silver layer is very thin, enter the acid solution, flake silver film easily, so the need for chemical plating processing, in order to consolidate its conductive layer, fixed its conductivity.

plastic plating on the surface of the plastic surface modification at the end of the procedure, he is on the basis of the chemical plating, stratification treatment. Electroplating is in the form a layer of metal on the surface of injection molding products processing, to improve the performance of plastic. For common metal plating materials, generally USES the multi-layer plating method, reduce the cost.

plastic vacuum plating technology was conducted under the condition of high vacuum low-pressure glow discharge, vacuum indoor residual gas after ionization, bombarding cathode on the coating material, coating material particles to fly through the air to the anode, and at the anode coating is formed on the plastic products processing.

the high temperature of plastic spraying, also known as flame spraying, he is to use oxygen flame, feeding method, adopting boiling will be sprayed powder melt, spray from the spray gun to spray plastic on the surface. Suitable for high temperature spray coating for solid powder coating, general plastic resin powder coatings for hot.

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