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<p>As a new type of green and low-carbon biomass composite material, ultra-thin fiberboard has received great attention in the market. However, due to the complexity of the hot pressing process, it&#xa0;is not easy to quantitatively analyze the influence of hot pressing parameters on the properties of ultra-thin fiberboard. This study investigated the relationship between the temperature and time of hot pressing, and the physical and mechanical properties of fiberboard through the mechanism of moisture transfer. A mathematical model for temperature, time, and moisture content was established, as well as a neural network prediction model for the influence of moisture content on the physical and mechanical properties of the board. An ultra-thin fiberboard heat and mass transfer model was built according to the heat and moisture transport mechanism. Fluent software simulation was used to determine the moisture content of the boards under the matching hot pressing process. This study helps to optimize the hot pressing process and improve the product quality and production efficiency of ultra-thin fiberboard.</p>

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The mechanism of moisture transport and mechanical model of ultra-thin fiberboard

  • 期刊论文

  • 发表日期：

    2025年1月15日

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  • Chunmei Yang,
  • Tingting Wang,
  • Xinchi Tian,
  • Jie Yan,
  • Bo Xue,
  • Chengwen Sun

摘要

As a new type of green and low-carbon biomass composite material, ultra-thin fiberboard has received great attention in the market. However, due to the complexity of the hot pressing process, it is not easy to quantitatively analyze the influence of hot pressing parameters on the properties of ultra-thin fiberboard. This study investigated the relationship between the temperature and time of hot pressing, and the physical and mechanical properties of fiberboard through the mechanism of moisture transfer. A mathematical model for temperature, time, and moisture content was established, as well as a neural network prediction model for the influence of moisture content on the physical and mechanical properties of the board. An ultra-thin fiberboard heat and mass transfer model was built according to the heat and moisture transport mechanism. Fluent software simulation was used to determine the moisture content of the boards under the matching hot pressing process. This study helps to optimize the hot pressing process and improve the product quality and production efficiency of ultra-thin fiberboard.