文章摘要
高晨超,张洋,王超.高温水热处理对刨花制板性能的影响[J].包装工程,2015,36(7):36-39.
GAO Chen-chao,ZHANG Yang,WANG Chao.Effect of High-temperature Hydrothermal Treatment on Properties of Particle Board[J].Packaging Engineering,2015,36(7):36-39.
高温水热处理对刨花制板性能的影响
Effect of High-temperature Hydrothermal Treatment on Properties of Particle Board
投稿时间:2014-08-28  修订日期:2015-04-10
DOI:
中文关键词: 刨花板  高温水热处理  半纤维素  润湿性  吸湿
英文关键词: particle board  high-temperature hydrothermal treatment  hemicelluloses  wettability  moisture absorption
基金项目:江苏省科技型企业技术创新资金 (BC2013422)
作者单位
高晨超 南京林业大学南京 210037 
张洋 南京林业大学南京 210037 
王超 南京林业大学南京 210037 
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中文摘要:
      目的 提高人造板的尺寸稳定性及使用价值。 方法 采用高温水热处理来脱除杨木刨花中部分半纤维素, 研究处理温度及时间对脱除效果的影响, 并测试刨花压制板的力学性能及吸水膨胀性能。结果 处理后的刨花组分含量发生变化, 大部分半纤维素被脱除, 半纤维素的脱除对刨花原料的润湿性有影响。在处理温度为170 ℃, 处理时间为60 min时, 刨花的质量损失率最高 (24.9%), 所压制板材的防潮性能的提高幅度最大 (13.4%), 而力学性能有所降低, 其静曲强度为14.4 MPa, 内结合强度为0.53 MPa。结论 刨花原料经高温水热处理能够提升其压制板材的防潮性能。
英文摘要:
      The purpose of this study was to improve the dimensional stability and end-use value of the wood-based panel. The effects of experimental parameters such as temperature and time on the effectiveness and efficiency of hemicellulose extraction from poplar particles by high-temperature hydrothermal treatment were studied. And the mechanical performance and swelling properties of the particle board were tested. The results showed that high-temperature hydrothermal treatment had strong influence on the composition of particles, with most hemicelluloses removed, which influenced the wettability of particles. The mass-loss rate reached a maximum of MS:24.9% upon 60 minutes of treatment at 170 ℃. The panels made of treated materials showed an maximum improvement in moisture absorption property (13.4%) at small sacrifice of mechanical properties (MOR: 14.4 MPa, IB: 0.53 MPa). In conclusion, high-temperature hydrothermal treatment could improve the moisture absorption property of particle board.
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