ARTICLES MADE FROM COMPOSITE MATERIALS HAVING TOUGHENED AND UNTOUGHENED REGIONS

摘要

Articles hawng a body including a composite mateiial haung at least one toughened region and at ieasi one untoughened region, the toughened region containing a toughening agent selected from the group consisting of poh mers. nano fibers, nano particles, and combinations thereof where the toughened region includes a toughened resin haung a fracture toughness of at least about 1.OMPa-m1/2.