Self-foaming core reinforcement for laminate applications

摘要

A foam core structural laminate material is made by reacting a polymer matrix material with a blowing agent contained on a dry fiber preform within a mold. The laminate material formed therefore has a fiber reinforced core material and a foamed outer region. To add toughness to the laminate material, a glass fiber matting may be introduced to the mold such that the dry fiber preform is centrally located within the mold and the matting is located along the outer periphery.