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Abstract

A preparation method of an aerogel fiber and use are provided. The preparation method includes: mixing a solvent and a polymer material to form a spinning solution; driving the spinning solution with a high-speed airflow by using a blow spinning technology to form a jet flow, and forming a gel fiber through sol-gel transition; and performing solvent replacement on the gel fiber and then performing drying treatment to prepare the aerogel fiber. The method for preparing the aerogel fiber through blow spinning has no high requirements on a gelation process of an aerogel material, and can achieve the preparation of the aerogel fiber by using this method after the spinning solution meeting rheological conditions is obtained, thereby avoiding the influence of the inadequate gelation process on fiber properties while promoting the production efficiency of the aerogel fiber and greatly simplifying procedures.

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