Development of manufacturing technique for bamboo board with good living condition

本研究生产了一种新型建筑板材。以竹子、竹炭等废弃生物质为原料，采用4 M-NaOH溶液。以水玻璃粉和水玻璃粉代替有机胶粘剂，通过测定板材的表观密度、吸水厚度膨胀率、弯曲强度、表面硬度和显微镜观察等方法，对板材的力学性能进行了测试。通过实验得出了以下综合结果。在220 ℃、20 MPa、竹炭用量为50%时，（0.6）、抗弯强度（30 kg/cm 2）、吸水厚度膨胀率（5.2），表面硬度（1000 N），这些值均通过了瓦楞纸板的JIS标准，结论是，本研究中获得的板在不久的将来可用于商业板。

A new construction board was produced in this study. The bamboo, and bamboo charcoal an unused biomass used as the material.The 4M-NaOH soln. and sodium silicate powder were used as the inorganic adhesives in place of organic one.The measurements of apparent density, water absorption thickness expansion rate, bending strength, surface hardness, and microscopy observation were performed to check mechanical properties of the boards. The following comprehensive result was provided by the experiments. When the board was produced at 220degree C and 20MPa with 50% bamboo charcoal, the maximum value of apparent density (0.6), the bending strength (30kg/cm2), the water absorption thickness expansion rate(5.2), and surface hardness (1000N) were obtained.Because these values were passed JIS for MDF board, it concluded that the board obtained in this study is available the commercial boards in the near future.