PEEK树脂基复合材料具有突出的韧性和高损伤容限,但因成型工艺条件较为苛刻,且铺覆性能差,影响了曲面成型能力。利用柔性混编预浸料技术则可解决这一难题,高质量、高效率地实现复杂曲面结构件的制备。分别带有“L”型加强筋和帽型材的加筋口盖的制造,对此进行了充分的验证。

PEEK matrix composites exhibit great toughness and damage resistance.But the severe processing conditions and poor drapability result in in-efficiency in curved surface forming.This difficulty can be solved by flexible co-woven prepreg technology,facilitating the manufacture of complex curved surface structure with high quality and efficiency.The advantage of this flexible prepreg was demonstrated through the manufacture of stiffened panels with L stiffers and U stiffers,respectively.