Skin-core type composite fiber and preparation method thereof

• Main Authors: WANG HONGXING, QIAN YANMING, SUN SHUAI, TAO YE
• Format: Patent
• Language: Chinese; English
• Published: 03.02.2023
• Subjects: APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS; CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS; MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OFARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES ORRIBBONS; NATURAL OR ARTIFICIAL THREADS OR FIBRES; SPINNING; TEXTILES

The invention discloses a sheath-core type composite fiber and a preparation method thereof, and the sheath-core type composite fiber is an inflatable hollow fiber and comprises a component I, a component II and a component III, the first component is a skin layer, the second component and the third component are core layers, and the second component and the third component are located on the inner side of the first component; the cross section of the component II is crescent, and the component III is gas to form a hollow structure and is positioned between the component I and the component II; and the component II and the component III are eccentrically arranged. According to the skin-core type composite fiber and the preparation method thereof, the third component (namely the hollow structure) is added between the first component and the second component, so that asymmetry of the fiber of the skin-core structure can be increased, stress borne by the fiber is nonuniform, the skin-core type composite fiber ha