High lap shear strength, low back face signature UD composite and the process of making

摘要

Fabrication of ballistic resistant fibrous composites having improved ballistic resistance properties. More particularly, ballistic resistant fibrous composites having high interlaminar lap shear strength between component fiber plies or fiber layers, which correlates to low composite backface signature. The high lap shear strength, low backface signature composites are useful for the production of hard armor articles, including helmet armor.

主权项

1. A fibrous composite comprising a plurality of adjoined fiber layers, each fiber layer comprising fibers having surfaces that are at least partially covered with a polymeric material, wherein said fibers are predominantly free of a fiber surface finish; said fibrous composite having an interlaminar lap shear strength between adjoined fiber layers that is greater than the interlaminar lap shear strength between adjoined fiber layers of a comparable fibrous composite having fiber surfaces that are predominantly covered with a fiber surface finish wherein such a fiber surface finish is between the fiber surfaces and the polymeric material.