• 文献标题:   Thermal Pyrolysis Characteristics and Kinetic Analysis of Nanofibrillated Cellulose/Graphene Oxide Composites
  • 文献类型:   Article
  • 作  者:   MENG X, WANG SD, GAO WH, HAN WJ, LUCIA LA
  • 作者关键词:   cellulose nanofibril, thermal pyrolysis mechanism, fabrication method
  • 出版物名称:   BIORESOURCES
  • ISSN:   1930-2126
  • 通讯作者地址:   South China Univ Technol
  • 被引频次:   0
  • DOI:  
  • 出版年:   2020

▎ 摘  要

The fabrication process determines the microstructure and physical properties of material to some extent. In this study nanofibrillated cellulose /graphene oxide (NFC/GO) composites were fabricated by casting and evaporation methods, respectively. The microstructure and thermostability of the composites were investigated. The composites fabricated by the casting method had more uniform layered microstructure than those made by the evaporation method. The thermogravimetry analysis indicated that in the stage of 100 to 220 degrees C diffusion, the mechanisms of the Ginstling-Brounstein equation (D4) and the one-way transport equation (D1) can be regarded as the most suitable thermal pyrolysis reaction models for the composites made by the casting method and the evaporation method, respectively. However, in the stage of 220 to 380 degrees C, the two types of composites showed totally different thermal pyrolysis mechanisms. The results manifested that forming methods could indeed affect the microstructure and thermal degradation process of composites.