Abstract
We present kinetic patterns of metallization of zinc-activated polyvinylchloride in the solution of chemical copper plating. The influence was studied of pH of the medium and the amount of metal of the activator on the copper deposition rate on the activated polymeric surface. It was established that in the case of activation of the polymeric surface with zinc, the solution undergoes two competing reactions of copper reduction. By using a volumetric method, we determined that pH of the medium exerts a decisive impact on the reduction mechanism of copper. It is proved that with the growth of pH in the solutions of chemical copper plating and the amount of metal-activator, the amount of copper reduced as a result of exchange reaction with zinc increases. The optimal pH of the solutions for the course of reaction of copper reduction by formaldehyde is 12. The obtained samples of metallized powder-like polyvinylchloride contain a significant quantity of copper on the surface and could be used to create metal-filled composites. The research conducted allows us to establish optimal conditions and effectively influence the copper reduction process on the activated polymeric surface in the solutions of chemical metallization. By changing the speed and efficiency of copper deposition on the polymeric surface, it is possible to control the content of metal in polymeric composites that are obtained from such materials, and thus control their properties
Highlights
Despite their distinctive complex of high technical properties, polymers in some cases demonstrate significant disadvantages
It was found that the bulk of copper is reduced as a result of exchange reaction with zinc
The optimal value for the copper reduced as a result of interaction with formaldehyde is pH of the
Summary
Despite their distinctive complex of high technical properties, polymers in some cases demonstrate significant disadvantages. One of the major shortcomings that limits the scope of application of polymeric materials is the low capacity to conduct electric and thermal energy It is the high insulating properties of polymers regarded as their. The replacement of metal parts with the polymeric ones makes it possible to significantly reduce the cost of the product and its weight, and, in some cases, to improve certain characteristics. Another advantage of polymeric products over the metal ones is their high chemical and corrosion resistance, elasticity, and low density. In order to obtain polymeric composite materials, traditionally used methods are those that employ high-performance mixing equipment Such methods, despite their widespread, exhibit several shortcomings. That is why the information about kinetic patterns of reducing a metal on the polymeric surface is essential in order to obtain composites with controlled and preassigned properties
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