GLASS FIBER STRAND MATS, THERMOPLASTIC COMPOSITES REINFORCED WITH THE SAME AND METHODS FOR MAKING THE SAME

摘要

A needled mat adapted to reinforce a thermoplastic matrix material includes (a) a primary layer (12) having a plurality of thermoplastic fibers in an amount greater than about 20 weight percent of the primary layer on a total solids basis, the primary layer being less than about 20 weight percent of the mat on a total solids basis; and (b) a secondary layer (44) having a plurality of discontinuous glass fiber strands and having thereon a strand coating composition which is compatible with the thermoplastic matrix material, the secondary layer (44) being essentially free of individual glass monofilaments.