FIBER REINFORCED RESIN SHEET

摘要

PURPOSE:To obtain a sheet-like fiber structure having high specific strength and reduced in hygroscopic property. CONSTITUTION:The objective sheet is characterized by impregnating a phenol resin having >=1000 ultra-high molecular weight expressed in terms of polystyrene into a fiber or fiber structure consisting of an aromatic para oriented aramid and then curing the phenol resin until glass transition temperature thereof becomes >=95 deg.C.