Accession Number:

ADA275462

Title:

Ballistic Performance of Polycarbonate/Polyester and Polycarbonate/Styrene-Acrylonitrile microlayer Sheets

Descriptive Note:

Final rept. Oct 1991-Jun 1993

Corporate Author:

ARMY NATICK RESEARCH DEVELOPMENT AND ENGINEERING CENTER MA

Personal Author(s):

Report Date:

1994-01-01

Pagination or Media Count:

29.0

Abstract:

Extruded microlayer sheets of polycarbonatepolyester PCPCTG and polycarbonate styrene-acrylonitrile PCSAN were tested for ballistic performance and chemical resistance. Composition of the microlayer sheets ranged from 60 to 100 percent polycarbonate. The number of layers in the approximately one-eighth inch thick sheets ranged from one for the blend control samples to 3713 layers in the PCPCTG sheets. The normalized ballistic test results showed that some samples performed as well as and slightly better than injection molded polycarbonate samples. The failure mechanism was affected by the composition and the number of layers. Increasing composition of polycarbonate and number of layers decreased the percent of brittle failures. Immersion studies showed that the PCPCTG microlayer sheets were attacked by diethylene triamine and xylene but slower than polycarbonate by itself. The diethylene triamine drop testing demonstrated that the microlayer sheets were attacked but the PCSAN sheets showed the least effect. Ballistics, Ballistic testing, Chemical resistance, Polycarbonate, Eye protection, Areal density, Scratch resistant plastics.

Subject Categories:

  • Anatomy and Physiology
  • Polymer Chemistry
  • Plastics
  • Ballistics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE