先进复合材料国防科技重点实验室的航空树脂基复合材料研发进展

Research and Development Progress of National Key Laboratory of Advanced Composites on Advanced Aeronautical Resin Matrix Composites

归纳先进复合材料国防科技重点实验室在航空先进树脂基复合材料方面的应用和研究进展。研制出超薄热塑性无纺织物层间增韧技术以实现提高复合材料的CAI性能。设计出的多夹层结构具有多层吸收拓展频带的作用,使多夹层隐身复合材料的吸收频宽达1～18GHz。高韧性树脂基复合材料和耐高温复合材料技术得到发展,并形成预浸料-热压灌成型、液态成型和自动化制造技术体系。发展复合材料固化、树脂流动、固化变形等模拟优化技术,并建立复合材料数据库技术。建立先进复合材料国防科技重点实验室可在支撑航空装备研制,在航空复合材料创新引领、体系主导、基础支撑和保障应用方面发挥作用。

Applications and research progress in advanced aeronautical resin matrix composites by National Key Laboratory of Advanced Composites（LAC） were summarized.A novel interlaminar toughening technology employing ultra-thin TP non-woven fabric was developed in LAC,which significantly improved the compression after impact（CAI） performances of composite laminates.Newly designed multilayer sandwich stealth composite structures exhibited a good broadband radar absorbing properties at 1-18 GHz.There were remarkable developments in high toughness and high temperature resin matrix composites,covering major composite processing technologies such as prepreg-autoclave procedure,liquid composite molding and automation manufacture,etc.Finally,numerical simulation and optimization methods were deliberately utilized in the study of composites curing behavior,resin flow and curing deformation.A composite material database was also established.In conclusion,LAC has been a great support for the development of aeronautical equipment,playing such roles as innovation leading,system dominating,foundation supporting and application ensuring of aerocomposites.