连续纤维自增强复合材料 3D 打印及其回收性能研究

A new method for low-cost and rapid manufacturing of composite components is provided with the emergence of continuous fiber reinforced composite 3D printing technology. In order to make full use of the characteristics of 3D printing continuous fiber reinforced thermoplastic composites, which are quick to form and easy to form complex parts, as well as the advantages of fully recyclable self-reinforced composites with good interface bonding, the development of 3D printing technology for self-reinforced composites is reviewed. A 3D printing method for continuous fiber self-reinforced composites formed by supercooling melt is proposed, and a melt extrusion printing nozzle for self-reinforced composites based on supercooling is designed. Polyphenylene sulfide (PPS) fiber and PPS resin are used as the raw materials of self-reinforced composites, the forming and printing temperature window, mechanical properties of composites, microstructure interface bonding and the analysis of fully recyclable continuous fiber self-reinforced composites are explored.