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Effect of carbonization temperature on electrical resistivity and physical properties of wood and wood-based composites

机译：碳化温度对木材及木基复合材料电阻率和物理性能的影响

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摘要

The effect of carbonization temperature on the electrical resistivity and physical properties of solid (ash) wood, plywood, and particleboard carbonized in a vacuum furnace under a gas flow of nitrogen (200 ml/min) between 400 and 1100 ℃ was investigated. The electrical resistivity, dimension shrinkage and weight loss of the carbonized specimens were extensively investigated. The electrical resistivity of specimens significantly decreased with increasing carbonization temperature. The rates of the volumetric shrinkage and weight loss of the specimens significantly increased with increasing the temperature. At the carbonization temperature of 1100 ℃, the particleboard had the highest electrical conductivity property, followed by the plywood and solid wood, respectively. The electrical resistivities of wood, plywood, and particleboard carbonized at 1100 ℃ were less than about 1 ohm-cm, thereby making them suitable for use as an electrode in a fuel cell, battery or electrolyzer.
机译：研究了碳化温度对在400至1100℃的氮气流（200 ml / min）下在真空炉中碳化的固体（白蜡）木材，胶合板和刨花板的电阻率和物理性能的影响。对碳化试样的电阻率，尺寸收缩率和重量损失进行了广泛的研究。样品的电阻率随碳化温度的升高而显着降低。样品的体积收缩率和重量损失率随着温度的升高而显着增加。在1100℃的碳化温度下，刨花板的导电性能最高，其次是胶合板和实木。在1100℃碳化的木材，胶合板和刨花板的电阻率小于1 ohm-cm，从而使其适合用作燃料电池，电池或电解槽中的电极。

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  • 来源
    《Composites》 |2013年第3期|102-107|共6页
  • 作者

    Jin Heon Kwon; Sang Bum Park; Nadir Ayrilmis; Seung Won Oh; Nam Hun Kim;

  • 作者单位

    Department of Forest Biomaterials Engineering, College of Forest and Environmental Sciences, Kangwon National University, 200-701 Chuncheon City, Republic of Korea;

    Department of Forest Products, Korea Forest Research Institute, 57 Heoigi-ro, Dongdaemun-gu, Seoul, Republic of Korea;

    Department of Wood Mechanics and Technology, Istanbul University, Bahcekoy, Sariyer, 34473 Istanbul, Turkey;

    Department of Wood Science and Technology, College of Agriculture and Life Science, Chonbuk National University, 567-756 Chonju, Republic of Korea;

    Department of Forest Biomaterials Engineering, College of Forest and Environmental Sciences, Kangwon National University, 200-701 Chuncheon City, Republic of Korea;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    A. Wood; B. Physical properties; E. Thermal analysis; B. Electrical properties;

    机译：木;B.物理性质;E.热分析;电气性能;

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