Citation

Benrashid R, Nelson GL, Ferm DJ, Chew LW. J. Fire Sci. 1995; 13(3): 224-234.

Copyright

(Copyright © 1995, SAGE Publishing)

DOI

unavailable

PMID

unavailable

Abstract

Polycarbonate was blended with zinc zinc borate (2ZnO . 3B(2)O(3) . 3.5H(2)O) and zinc oxide. Blends made of zinc/polycarbonate and especially zinc borate/polycarbonate show major improvement in oxygen index values. Ohio State University (OSU) heat release studies show reduction in heat release only for zinc borate/polycarbonate blends compared to virgin polycarbonate. No improvement in smoke suppression was observed from NBS Smoke Chamber studies for these blends. From DSC studies there was a lowering of Tg's. Thermogravimetric analyses show the blends have lower temperature stability in nitrogen (50% weight loss) compared to a control.