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    谢桂军, 周永东. 高温热处理木材中纳米铜的原位制备及防霉变性能研究[J]. 华南农业大学学报, 2018, 39(3): 96-101. DOI: 10.7671/j.issn.1001-411X.2018.03.015
    引用本文: 谢桂军, 周永东. 高温热处理木材中纳米铜的原位制备及防霉变性能研究[J]. 华南农业大学学报, 2018, 39(3): 96-101. DOI: 10.7671/j.issn.1001-411X.2018.03.015
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    XIE Guijun, ZHOU Yongdong. In-situ synthesis and anti-mold property of nano-copper of the heat-treated wood[J]. Journal of South China Agricultural University, 2018, 39(3): 96-101. DOI: 10.7671/j.issn.1001-411X.2018.03.015
    Citation: XIE Guijun, ZHOU Yongdong. In-situ synthesis and anti-mold property of nano-copper of the heat-treated wood[J]. Journal of South China Agricultural University, 2018, 39(3): 96-101. DOI: 10.7671/j.issn.1001-411X.2018.03.015
    shu

    高温热处理木材中纳米铜的原位制备及防霉变性能研究

    In-situ synthesis and anti-mold property of nano-copper of the heat-treated wood

      摘要
    • 摘要:
      目的  提高热处理木材的防霉变性能，为扩大高温热处理木材的使用范围提供技术支撑。
      方法  依据液相还原反应原理，以含铜浸渍液加压处理马尾松Pinus massoniana木材，运用木材热处理技术，获得热处理木材，依据改良的霉变箱法测试该材料的防霉变效力。
      结果  对照组马尾松经高温220 ℃、3 h以上热处理之后，木材的防霉效力为20%以下；同等条件下，含铜马尾松热处理材防霉效力达90%以上。扫描电镜(SEM)与能谱(EDS)、X射线光电子能谱(XPS)和X射线衍射(XRD)表征含铜马尾松热处理木材内生成了纳米铜。
      结论  含铜热处理木材受热原位生成的100 nm铜能够极大地提高木材的防霉变效力。

       

      Abstract:
      Objective  To improve the anti-mold property of heat-treated wood and provide a technical support for expanding the use range of heat-treated wood.
      Method  The Pinus massoniana wood was dipped in copper impregnated liquid with pressure according to liquid reduction reaction principle. The heat-treated wood was obtained by heat treatment technics, and anti-mold property of the wood was tested by modified mold culture box test method.
      Result  The control group of P. massoniana wood was treated more than 3 hours at 220 ℃ and the mold-resistance effectiveness was lower than 20%. Under the same heat treatment condition, the mold-resistance effectiveness of P. massoniana wood which was impregnated in copper solution was more than 90%. The data of scanning electron microscope (SEM), energy disperse spectroscopy (EDS), X-ray photoelectron spectroscopy (XPS) and X-ray diffraction (XRD) showed that nano-copper was generated in copper-contained P. massoniana heat-treated wood.
      Conclusion  The 100 nm copper produced in situ by heat treatment of copper-contained wood can greatly improve anti-mold property of wood.

       

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