面向太空制造的复合材料3D打印与回收利用  

3D Printing and Recycling of Composites for Space Manufacturing

作　　者：田小永[1] 刘腾飞[1] 张曼玉 李涤尘[1] TIAN Xiaoyong;LIU Tengfei;ZHANG Manyu;LI Dichen(State Key Laboratory for Manufacturing System Engineering,Xi’an Jiaotong University,Xi’an 710049,Shaanxi,China)

机构地区：[1]西安交通大学精密微纳制造技术全国重点实验室,陕西西安710049

出　　处：《上海航天(中英文)》2025年第1期20-28,共9页Aerospace Shanghai(Chinese&English)

基　　金：国家重点研发计划资助项目(2023YFB4605301)。

摘　　要：面向太空制造资源紧缺问题,提出了两种基于连续纤维3D打印的复合材料回收再利用技术。利用碳纤维复合材料逆向熔融抽丝方法,实现碳纤维增强聚醚醚酮(CF/PEEK)预浸丝回收。提出聚苯硫醚(PPS)自增强复合材料过冷3D打印工艺,实现自增强复合材料成形与回收再利用。研究了回收前后材料微观结构、力学性能的演变规律,回收预浸丝再次打印获得CF/PEEK试样,其弯曲强度和模量较原始复合材料分别提升4.8%和50.8%,PPS自增强复合材料回收再次打印后相比原始PPS材料直接打印,试样弯曲应变提高了13.8%,韧性显著提升,实现非降级回收。探讨了面向太空制造的3D打印复合材料全生命周期回收再利用策略,为未来太空制造发展提供支撑。In response to the resource scarcity issues in space manufacturing,two technologies for recycling threedimensional(3D)printed continuous fiber reinforced composites are proposed.The reverse melting drawing method is adopted to recycle the carbon fiber reinforced polyether ether ketone(CF/PEEK)composites.An innovative overcooling 3D printing process for polyphenylene sulfide(PPS)self-reinforced composites is developed,enabling the manufacturing and recycling of self-reinforced composites.The evolution laws of the microstructure and mechanical properties of the composites before and after recycling are studied.The recycled prepreg filaments are reprinted to obtain CF/PEEK samples,with flexural strength and modulus improved by 4.8%and 50.8%,respectively,compared with the original ones.The flexural strain of the samples printed by the recycled PPS self-reinforced composites is increased by 13.8%compared with that printed by the original PPS composites,and the toughness is significantly enhanced,achieving non-degradable recycling.Overall,a full lifecycle recycling and reuse strategy for 3D printed composites for space manufacturing is explored,providing support for the future development of space manufacturing.

关 键 词：太空制造 3D打印 复合材料 连续纤维 自增强 回收再利用 

分 类 号：TB33[一般工业技术—材料科学与工程]