Surface treatment method for ABS plastic electroplating

Abstract

The invention discloses a surface treatment method for ABS plastic electroplating. A one-step swelling-coating graphene oxide secondary-reduction process is adopted; a uniform and continuous conductive layer is directly formed on the surface of an ABS product; the using of heavy metal salts and precious metals is avoided, the technical process and cost are largely reduced; the surface treatment method is simple and efficient and is easy to perform; the operability is high, the cost is low, and the surface treatment method is suitable for industrial large-scale production and application and has an important application value.

Description

technical field [0001] The invention belongs to the technical fields of graphene technology and plastic surface treatment, and in particular relates to a surface treatment method for ABS plastic electroplating. Background technique [0002] In recent years, with the advancement of science and technology and the continuous emergence of new materials, non-metallic materials such as plastics, glass, ceramics, and gypsum have been more and more widely used in industry and daily life. Many products that were previously made of metal have now been replaced. These are replaced by products such as plastics, which greatly reduce the weight and cost of products. However, plastics also have certain disadvantages: non-conductive, non-thermal, non-wearable, easy to deform, not resistant to pollution, lack of metallic luster and aesthetics, etc., which limits its application range to a certain extent. If a layer of metal is coated on the plastic surface, it is possible to make up for its...

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Problems solved by technology

However, plastics also have certain disadvantages: non-conductive, non-thermal, non-wear-resistant, easy to deform, not resistant to pollution, lack of metallic luster and aesthetics, etc., thus limiting its application range to a certain extent

Although this process method avoids surface roughening, activation and other processes, and reduces the use of chromic acid, hydrochloric acid, etc., the steps are still too cumbersome, because the conductive black coating is easy to agglomerate, and its conductivity is far inferior to that of graphene materials. First, the carbon black particles are oxidized and loaded with metal nanoparticles. This process requires the use of expensive noble metal salts and insulating dispersive wetting agents, so that the cost cannot be optimally controlled, and the conductivity of the coating will also decrease. In addition, the process method described in the patent is to prepare the modified conductive carbon black into a slurry, and then coat the polymer adhesive on the surface of the ABS plastic, and then blacken the conductive carbon black. The slurry is sprayed on the surface of ABS plastic, and the polymer adhesive used only plays the role of double-sided tape, and the bonding force cannot be guaranteed, so that no chemical bond or physical riveting is formed between the coating and the plastic substrate, which will affect the entire Coating force and uniformity

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