Optical features of metallized polyamide films in IR range

A. A. Zhukov, A. E. Zdobnikov, S. N. Klemin, V. P. Lavrishchev, V. V. Tarasov, J. S. Tchetverov
Authors represent Moscow Central Research Institute "Сyclone", Russia

The method of IR spectroscopy was used to examine optical features of thin (2,0—2,2 mm) poly-N-fenilparaocsifenilpiromellitymide films with one- and two-sided titanium metallization as absorption, reflection and transmission. Polyimide films having thick titanium coat on the one-side and thin coat on the other one show twofold higher absorption in comparison with the absorption capacity of the films with one sided metallization. Higher level of absorption of IR light by the two-sided metallized films in the 860—1420 cm–1 range with maximum up to 76 % in the of 900—1060 cm–1 range can be explained by the waves interference at the structure.

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