Progress in Shaped Fibers and Their Manufacturing Techniques:A Review
Shaped fibers are fibers with non-circular cross-sectional shapes.They can compensate for the limi-tations of circular fibers in terms of torsional strength,roughness,elasticity,and apparent properties.Additionally,shaped fibers exhibit excellent properties such as luster,dyeability,stain resistance,flame retardancy,thermal insu-lation,and sound insulation.As a result,they have found extensive applications in various fields including textiles,composite materials,construction,biomedical,automotive,aerospace,and optics.This article reviewed the litera-tures on shaped fibers,providing an overview of their types,characteristics,and application areas.It also summa-rized the manufacturing techniques and influencing factors of shaped fibers,and analyzed the characterization methods of their cross-sectional morphology and their impact on performance.This comprehensive review aimed to provide scientific guidance and technical references for the research and development of shaped fibers.