Metallization of Plastics by Physical Vapor Deposition Techniques

  • Wan C
  • Taylor K
  • Chambers D
  • et al.
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Abstract

Common physical vapor deposition techniques, such as vacuum evaporation and magnetically enhanced sputtering as used in the metallization of conmon plastics, are described and compared fOr di~ferent applications. Typical applications range ~rom the metallization of various types of plastics used ~or trophies, automobile dashboards and compact discs to the deposition o~ cermet coatings onto aerospace parts ~abricated with ~iber impregnated polyimide composites or other moldable high temperature polymeric materials. I NTROEl..CTIIl\I Physical vapor deposition (PVO) r~ers to a variety of coating techniques commonly used in a vacuum or a partial vacuum of gases fOr the deposition of metall iC, ceramic or cermet coatings. These coatings are deposited ~rom a vapor onto substrates by applying thermal or mechanical energy to the material to be deposited. This paper describes the application of PVD techniques such as the vacuum evaporation and the sputtering process with emphasis on the use of magnetically enhanced sputtering in high technology applications. Typical applications include (1) decorative coatings fOr automobile parts and jewelry, (2) re~lective coatings on compact and laser discs, (3) coating on web fOr electronic components and circuitry, solar cells and radiation control, ~d packaging, (4) electromagnetic inter~erence (EMI) coating fOr rejection o~ high ~requency noise and (5) coatings fOr wear, corrosion and erosion resistances. Metallization Process and Plastics 1 A typical metallization process fOr plastic materials consists o~ applying three layers of coatings: (1) The Tirst layer is a lacquer-type organic coating, r~erred to as a base-coat whose primary function is to prod..lce a smooth sur~ace so that the metal coating will have maxirrum luster. It is also used to enhance the adhesion between the metal coating and the substrate. Since plastic material is known to outgas in the vacuum environment, the base-coat

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Wan, C. T., Taylor, K. A., Chambers, D. L., & Susi, G. T. (1991). Metallization of Plastics by Physical Vapor Deposition Techniques. In Metallized Plastics 2 (pp. 81–95). Springer US. https://doi.org/10.1007/978-1-4899-0735-6_6

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