Effects of a binder on properties of taeniolite-acriflavine complex films before and after carbonization

Taeniolite-acriflavine complex films (about 10 m in thickness) with less than 2 wt % of aluminium phosphate binder were prepared, followed by heat treatment (carbonization) below 1073 K under nitrogen in order to examine the effects of the binder on properties of the films. The results obtained are as follows.(1) The binder made the film more dense without structural change on X-ray diffraction analysis. (2) The tensile strength of the film, especially after heating to high temperature, was improved by adding the binder. (3) The modulus of toughness was scarcely influenced by the binder. (4) No change was observed in the electric resistivity by adding the binder.