| 摘要 |
A non-destructive test is provided for determining the ability of a metal coating to adhere to the plastic substrate of a metallized plastic article comprising determining the difference between two separate contact angle values, the first being obtained by measuring the contact angle formed by a drop of liquid resting on a specimen plastic substrate prior to etching said substrate and the second being obtained by measuring the contact angle formed by a drop of liquid resting on an etched plastic substrate. Contact angle values are easily measurable parameters which indicate platability and therefore are valuable in the electroplating of plastics.
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