Low density and high strength fiber glass for ballistic applications

摘要

The present invention relates to fabrics, composites, prepregs, laminates, and other products incorporating glass fibers formed from glass compositions. The glass fibers, in some embodiments, are incorporated into composites that can be adapted for use in high energy impact applications such as ballistic or blast resistance applications. Glass fibers formed from some embodiments of the glass compositions can have certain desirable properties that can include, for example, desirable electrical properties (e.g. low Dk) or desirable mechanical properties (e.g., specific strength).

主权项

1. A composite comprising:
a polymeric resin; and a plurality of glass fibers disposed in the polymeric resin, wherein at least one of the plurality of glass fibers comprises a glass composition comprisingSiO260-68 weight percent;B2O37-12weight percent;Al2O39-15weight percent;MgO8-15weight percent;CaO0-4weight percent;Li2O0-2weight percent;Na2O0-1weight percent;K2O0-1weight percent;Fe2O30-1weight percent;F20-1weight percent;TiO20-2 weight percent; andother constituents0-5 weight percent total;wherein the (Li2O+Na2O+K2O) content is less than 2 weight percent, wherein the MgO content is at least twice the content of CaO on a weight percent basis, and wherein the composite is adapted for use in ballistics or blast resistance applications.