Organic-inorganic hybrid aerogel fiber with ultrahigh heat insulation performance and preparation method of organic-inorganic hybrid aerogel fiber

• Main Authors: DU CHUNYA, ZHANG QI, ZHAO JIAYI, YANG JIALE, LI YANBIN, WANG SHUJIE, XIONG SUWEN, REN YIRAN, LIU MINGKAI, CHEN FANGYUAN, TANG SUHAN, ZHANG LE
• Format: Patent
• Language: Chinese; English
• Published: 01.07.2022
• Subjects: APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS; CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS; NATURAL OR ARTIFICIAL THREADS OR FIBRES; SPINNING; TEXTILES

The invention discloses an organic-inorganic hybrid aerogel fiber with ultrahigh heat insulation performance and a preparation method of the organic-inorganic hybrid aerogel fiber, and relates to the technical field of functional fibers. The preparation method comprises the following steps: (1) mixing raw materials and then reacting to obtain an aerogel precursor solution, (2) driving the aerogel precursor solution into a capillary tube through surface tension to form gel fibers in a narrow space, and (3) obtaining the organic-inorganic hybrid aerogel fibers through a freeze-drying process. The organic-inorganic hybrid aerogel fiber prepared by the method has ultrahigh heat insulation performance (the average pore size is 25-45nm, and the heat conductivity coefficient is low (0.018-0.022 W/(m.K)), and also has excellent hydrophobicity and mechanical properties, the preparation process is green and environment-friendly, simple and easy to operate, and the high-strength organic-inorganic hybrid aerogel fiber ca