航空材料学报2025，Vol.45Issue(3)：43-51,9.DOI:10.11868/j.issn.1005-5053.2025.000059
基于自动铺丝技术的CF/PAEK热塑性复合材料原位退火工艺
Vacuum-assisted in-situ annealing of CF/PAEK composites based on automated placement technology
摘要
Abstract
To address the challenge of inconsistent forming quality observed in carbon fiber-reinforced polyaryl ether ketone(CF/PAEK)composites during in-situ automated fiber placement(AFP),this study introduces a vacuum-assisted in-situ annealing(VIA)process implemented subsequent to layup.The study systematically examines the impact of VIA parameters—specifically annealing temperature and holding time—on various aspects of CF/PAEK unidirectional laminates,including temperature field uniformity,warpage deformation,porosity,crystallinity,and interlaminar properties.Experimental findings reveal that the VIA process facilitates a uniform temperature field,mitigates crystallinity gradients,and progressively diminishes warpage deformation with an increase in annealing temperature,ultimately achieving complete elimination of warpage.Notably,when the annealing temperature surpasses the resin melting point,internal pores formed during the CF/PAEK prepreg or AFP process undergo substantial reduction,resulting in a porosity level of merely 2%.Furthermore,the interlaminar performance exhibits a remarkable enhancement,with an interlaminar shear strength(ILSS)of 64.66 MPa—representing a 58.6%improvement compared to specimens that have not undergone VIA treatment.关键词
热塑性复合材料/自动铺丝/原位成型/CF/PAEK/原位退火Key words
thermoplastic composite/automated fiber placement/in-situmolding/CF/PAEK/vacuum-assistedin-situannealing引用本文复制引用
辛志博,江梦茹,肖涵,赵威,张翰林,朱垠晓,杨方鸿,王成博,段玉岗..基于自动铺丝技术的CF/PAEK热塑性复合材料原位退火工艺[J].航空材料学报,2025,45(3):43-51,9.基金项目
国家重点研发计划(2022YFB3709403) （2022YFB3709403）
中国航发北京航材院稳定支持项目(KZ0C231831) （KZ0C231831）
国家自然科学基金项目(12272358) （12272358）
