| 摘要 |
PURPOSE: A method for the metallization of a plastic surface which cannot be metallized by means of conventional etching and activation steps is provided, and a method for the metallization of a plastic surface by means of a single activation step is provided. CONSTITUTION: The method for metallizing a plastic surface comprises the step of preactivating the plastic surface by contacting the plastic surface with a solution comprising permanganate, a crosslinking agent, and a pH buffer material, wherein the solution has a permanganate concentration of from about 0.1 g/L to about 100 g/L, wherein the permanganate comprises potassium permanganate, wherein the solution has a potassium permanganate concentration of from about 5 g/L to about 10 g/L, wherein the solution has a crosslinking agent concentration of from about 0.001 g/L to about 10 g/L, wherein the crosslinking agent comprises a fluorinated crosslinker selected from the group consisting of a perfluorinated crosslinking agent and a partially perfluorinated crosslinking agent, wherein the solution has a fluorinated crosslinker concentration of from about 0.01 g/L to about 0.1 g/L, wherein the solution is buffered in a pH range from about 2 to about 12, wherein the solution has a pH buffer material concentration of from about 1 g/L to about 100 g/L, wherein the pH buffer material comprises a buffer salt selected from the group consisting of sodium tetraborate and potassium dihydrogen phosphate, wherein the solution has a buffer salt concentration of from about 5 g/L to about 15 g/L, wherein the solution has a temperature of from about 0 deg.C to about 70 deg.C, wherein the solution has a temperature of from about 30 deg.C to about 50 deg.C, wherein the plastic surface is contacted with the solution for a duration of from about 1 minute to about 15 minutes, wherein the plastic surface is contacted with the solution for a duration of from about 4 minute to about 6 minutes, wherein contacting the plastic surface with the solution is characterized by establishing a flow of the solution across the plastic surface, and wherein the method further comprises the steps of etching the plastic surface prior to the preactivation step; activating the plastic surface following the preactivation step; and metallizing the activated plastic surface.
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