Wg. Kohlman, BALLISTIC PERFORMANCE OF POLYCARBONATE POLYESTER AND POLYCARBONATE/STYRENE-ACRYLONITRILE MICROLAYER SHEETS/, Polymer engineering and science, 35(14), 1995, pp. 1191-1195
Extruded microlayer sheets of polycarbonate/polyester (PC/PCTG) and po
lycarbonate/styrene-acrylonitrile (PC/SAN) were tested for ballistic p
erformance. Composition of the microlayer sheets ranged from 60 to 100
percent polycarbonate. The number of layers in the approximately 3 mm
thick sheets ranged from one for the blend control samples to 3713 la
yers in the PC/PCTG sheets. The normalized ballistic test results show
ed that some samples performed as well as and slightly better than inj
ection molded polycarbonate samples. The failure mechanism was affecte
d by the composition and the number of layers. Increasing composition
of polycarbonate and number of layers decreased the percent of brittle
failures.