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Solution and a method for machining the surface of plastics, in particular of lcp - substrates for improving the adhesion of metallizations and use of such a solution
Solution and a method for machining the surface of plastics, in particular of lcp - substrates for improving the adhesion of metallizations and use of such a solution
The solution contains at least the following components: dollars a been h φ 2 φ o dollars a been an alkali metal hydroxide and dollars a been 0,5 mol / l to 8 mol / l of a carboxylic acid - derviats or a salt of the carboxylic acid - derivative. Dollars a preferably, the solution of naoh in a concentration of 100 g / l to 300 g / l or koh in a concentration of from 180 g / l to 400 g / l. Dollars a, the carboxylic acid - derivative or the salt of carboxylic acid - derivative can, in addition, at least one nitrogen atom and / or have a sulfur atom. Dollars a by a uniform roughening with low roughness, of which metallizations are applied with a high adhesive strength with finenesses under 200 mu m and down to 25 can be structured mu m.
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