PEEL PLY, METHOD FOR SURFACE PREPARING COMPOSITE STRUCTURE AND BINDING THE SAME BY USING THE PEEL PLY

摘要

PROBLEM TO BE SOLVED: To provide a peel ply capable of sufficient functioning together with a composite substrate derived from different resins without remaining residual fibers after peeling and containing resin in rich.SOLUTION: There is provided peel ply 11 for surface preparation of a composite substrate 10, which contains woven fabric 11a impregnated by a curable resin matrix 11b containing an epoxydized novolac resin, diglycidyl ether of polyphenol, triglycidyl ether of aminophenol, a curing agent and an inorganic filler particle and having resin content of at least 20 wt.%, wherein yarn of the woven fabric 11a has longitudinal direction tensile strength≥70 lbf/in, lateral direction tensile strength≥40 lbf/in, longitudinal direction linear mass density in a range of 50 to 25 denier and lateral direction linear mass density in a range of 50 to 250 denier.SELECTED DRAWING: Figure 1