ISSN:
1662-8985
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Silvered polyimide films have been prepared by alkali hydroxylation of polyimide filmsurface and incorporation of silver ions through subsequent ion exchange. Thermal curing had notonly re-cycloimidized the poly(amic acid) into polyimide, but also reduced silver ions into silveratoms and near-atomic silver clusters, which diffused and aggregated to give reflective andconductive surfaces without addition of reducing agents. By this method, silvered polyimide films canbe easily fabricated with double excellent reflective (reflectivity 〉 97%) and conductive surfaces(surface resistance: 0.02 [removed info]/sq), outstanding metal-polymer adhesion, high mechanical properties, andcontrollable thickness of silver layers at modest cost. As the side-to-side near-surface microstructuredifference in the laboratory made samples and commercial PI films, the thickness of alkali inducedhydrolysis, loading of silver ions and forming of silver layers at the two sides of the polyimide filmswere also discussed here. Films were characterized by transmission electron microscopy (TEM),scanning electron microscopy (SEM) and tapping mode atomic force microscopy (AFM). Resultsshow that continuous silver layers were formed on the polyimide films
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/39/transtech_doi~10.4028%252Fwww.scientific.net%252FAMR.11-12.497.pdf
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