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<p>Natural wood cellulose fibers (WCFs) have emerged as a sustainable and high-performance reinforcing material for polymer composites in recent years, with growing applications in eco-friendly building engineering and increasing research attention due to their renewable and biodegradable properties. The choice of drying process is the decisive factor for the final structure and performance of WCFs, while the problems of high energy consumption and long time of conventional drying methods such as freeze-drying limit their application range. This study uses innovative microwave drying technology to compare the supramolecular structure, porosity, and thermochemical properties of WCFs under microwave drying conditions with those of WCFs under traditional and freeze-drying conditions. Evidence suggested that MD-WCFs had higher crystallinity, crystal size and better thermal stability. Therefore, microwave drying method, as an energy-saving and fast drying process, is more suitable for creating fiber composite materials with high thermal stability, and provides a new way for the development of green and sustainable wood-based functional materials.</p>

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Tradition and innovation: a comparative study on the structure and properties of wood cellulose fibers via microwave, freeze and conventional drying methods

  • 期刊论文

  • 发表日期：

    2025年10月7日

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  • Yongle Zhang,
  • Yu Zhang,
  • Lanying Lin,
  • Yongdong Zhou,
  • Feng Fu

摘要

Natural wood cellulose fibers (WCFs) have emerged as a sustainable and high-performance reinforcing material for polymer composites in recent years, with growing applications in eco-friendly building engineering and increasing research attention due to their renewable and biodegradable properties. The choice of drying process is the decisive factor for the final structure and performance of WCFs, while the problems of high energy consumption and long time of conventional drying methods such as freeze-drying limit their application range. This study uses innovative microwave drying technology to compare the supramolecular structure, porosity, and thermochemical properties of WCFs under microwave drying conditions with those of WCFs under traditional and freeze-drying conditions. Evidence suggested that MD-WCFs had higher crystallinity, crystal size and better thermal stability. Therefore, microwave drying method, as an energy-saving and fast drying process, is more suitable for creating fiber composite materials with high thermal stability, and provides a new way for the development of green and sustainable wood-based functional materials.