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Chemistry and Industry of Forest Products ›› 2022, Vol. 42 ›› Issue (5): 107-112.doi: 10.3969/j.issn.0253-2417.2022.05.015

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Preparation and Properties of FeCl3/Polyacrylic Acid Transparent Conductive Wood

Saiyu YANG, Yanan ZHANG, Tong LI, Liujun LIU, Jianxin JIANG, Jiufang DUAN()   

  1. College of Materials Science and Technology MOE Engineering Research Center of Forestry Biomass Materials and Bioenergy Beijing Forestry University Beijing 100083, China
  • Received:2021-08-23 Online:2022-10-28 Published:2022-11-02
  • Contact: Jiufang DUAN E-mail:duanjiu99@163.com

Abstract:

Using Balsa wood as raw material, lignin was removed, and the acrylic acid solution was impregnation and cured to get transparent wood. Subsequently, FeCl3 solution was further impregnated to form a flexible FeCl3/polyacrylic acid transparent conductive wood. Fourier transform infrared spectroscopy(FT-IR) and scanning electron microscopy(SEM) were used to characterize these materials. The results showed that the transparent wood had the best conductivity when it was immersed in 0.75% FeCl3 solution for 60-70 min. The tensile strength of transparent wood soaked in 0.5 mol/L FeCl3 solution could reach 6.03 MPa, which was nearly 10 times higher than that of the unsoaked transparent wood(0.55 MPa). In addition, the resistance sensing performance of transparent wood was excellent, and it showed characteristic electrical changes correlated with the different human actions, which demonstrated the potential applications in conductive films, flexible human sensors and other fields.

Key words: Balsa wood, transparent wood, electrical conductivity, acrylic acid, ferric chloride

CLC Number: