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Influence of composite film structure on reflectance of vacuum metellized plastics
Author(s) -
Hoffman D. W.,
Dickie R. A.
Publication year - 1977
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.760171210
Subject(s) - materials science , chromium , electroplating , reflectivity , metallurgy , composite number , deposition (geology) , layer (electronics) , metal , corrosion , nickel , composite material , vacuum deposition , optics , paleontology , physics , sediment , biology
The reflectance of vacuum‐metallized plastic parts prepared using corrosion resistant metals such as chromium, nickel, and stainless steel is substantially less than that of electroplated chromium. Model calculations and data indicate that the use of a clear topcoat to protect the vacuum‐deposited metal layer is a major factor in reducing the observed reflectance. There does not appear to be a simple change in metal deposition process, film structure, or composition that can compensate for the loss of reflectance incurred by application of the topcoat.