Inhibition of water penetration into ballistic materials

摘要

Ballistic resistant articles having excellent resistance to deterioration due to liquid exposure. More particularly, ballistic resistant fibrous composites and articles that retain their superior ballistic resistance performance after exposure to liquids such as sea water and organic solvents, such as gasoline and other petroleum-based products.

主权项

1. A fibrous composite material, comprising in order:
a) a first outer polymer film; b) a first fibrous layer in contact with the first outer polymer film; the first fibrous layer comprising a plurality of fibers wherein said fibers are impregnated with a polymeric binder material that is resistant to dissolution by water and resistant to dissolution by gasoline; c) a central polymer film in contact with the first fibrous layer; d) a second fibrous layer in contact with the central polymer film; the second fibrous layer comprising a plurality of fibers wherein said fibers are impregnated with a polymeric binder material that is resistant to dissolution by water and resistant to dissolution by gasoline; and e) a second outer polymer film in contact with the second fibrous layer; wherein the first fibrous layer and the second fibrous layer each comprise fibers having a tenacity of about 7 g/denier or more and a tensile modulus of about 150 g/denier or more, wherein said polymeric binder material encapsulates each of the fibers such that 100% of the fiber surface area is covered with said binder material.