Preparation method of double-mode heating cotton fabric with photothermal conversion and Joule heating performance

• Main Authors: JIA ZHANGTING, GAO DANGGE, LYU BIN, FU YATONG, TANG LITAO
• Format: Patent
• Language: Chinese; English
• Published: 22.12.2023
• Subjects: FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR; LAUNDERING; TEXTILES; TREATMENT OF TEXTILES OR THE LIKE; TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS,FABRICS, FEATHERS, OR FIBROUS GOODS MADE FROM SUCH MATERIALS

The invention relates to a preparation method of a dual-mode heating cotton fabric with photothermal conversion and Joule heating performance. The preparation method comprises the following steps: by taking a cotton fabric as a base material, firstly, carrying out self-polymerization on polydopamine on the surface of a cotton fiber to prepare a polydopamine modified cotton fabric; and finishing the silver nanoparticles onto the surface of the polydopamine modified cotton fabric through an in-situ reduction method to prepare the dual-mode heating cotton fabric with photothermal conversion and Joule heating properties. According to the method, polydopamine not only can reduce silver ions into silver nanoparticles, but also has a good bonding effect. The solar spectrum absorptivity of the dual-mode fabric is greater than 85%, and the peak temperature in an outdoor temperature rise test reaches 101.5 DEG C which is 43.9 DEG C higher than that of a pure cotton fabric; the conductivity is greater than 15000 S/m, an