国内航空发动机用树脂基复合材料及应用现状OA

Performance enhancement of advanced aero-engines sets a higher requirement for their overall structural lightweighting.Polymer-matrix composite(PMC)are one of the key materials to achieve aeroengine lightweighting.In recent years,focusing on the aero-engine cold-section parts,AECC Beijing Institute of Aeronautical Materials(BIAM)has systematically developed PMCs of high-toughness epoxy,high-temperature and high-toughness bismaleimide,high-temperature polyimide and high-toughness thermoplastic resins.This article introduces the foreign profile of PMCs for aero-engines and the demands of aeroengines for PMCs.Then,taking BIAM as the representative,domestic current status of PMCs for aero-engines and application are introduced.PMC development trend and emphasis for aero-engines are proposed.Overall,domestic PMC for aero-engines have made breakthrough in such aspects as high-temperature resistance,impact resistance,structure/function integration and integral fabrication technology,and have achieved batch application in such parts as fan blades,containment casings and outer ducts.For the needs of future aero-engines,PMC would focus more and more on the directions including thermal resistance enhancement,toughness improvement,structure integration,processing automation and intelligentization,full-life cost minimization.