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首页> 外文会议>49th International wood composites symposium >Nanoparticle Impregnation Treatment of Natural Fiber for Functional Biocomposites
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Nanoparticle Impregnation Treatment of Natural Fiber for Functional Biocomposites

机译：功能性生物复合材料天然纤维的纳米粒子浸渍处理

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摘要

This research presents a novel in situ nanoparticle impregnation treatment of thernlignocellulosic fibers for functional composite products. Unlike other synthetic fibers (glassrnfibers, carbon fibers, etc.), the cell wall structure of cellulosic fibers contains manyrnmicropores, where the nanophase can be easily deposited into. This technique takesrnadvantage of the porous structure of the cellulosic fibers permitting the nanophases to bernmore evenly distributed into the resulted products. By the impregnation treatment of therncellulosic fiber with different nanophases (such as noble metals, iron, iron oxides, and etc.),rnthe resulted products will present certain functions, such as magnetic, anti static, antirnradiation, anti permeation, anti microbial, and etc. While directly impregnating therncommercial nanoparticles into the cellulosic fibers can be difficult and costly, the in siturnnanophase impregnation technique is to introduce the ionic liquids into the microporernstructure of the cellulosic fibers consecutively. When a precursor applies at certainrnconditions (such as increasing the temperature), the impregnated chemicals react insidernthe micrpores of the fibers and to form the desired nanoparticles. The presentation usesrnthe iron oxide nanoparticle impregnation as an example, describes a magnetizing processrnof natural fiber through the in situ nanoparticle impregnation treatment to create magneticrncomposite panel product for different applications, such as signal shielding panel. Thernpresentation also discusses a novel magnetic activated carbon product through the in siturnnanoparticle treatment technology.
机译：这项研究提出了一种新的原位纳米粒子浸渍处理功能性复合产品的木质纤维素纤维。与其他合成纤维（玻璃纤维，碳纤维等）不同，纤维素纤维的细胞壁结构包含许多微孔，纳米相可轻松沉积在其中。该技术利用了纤维素纤维的多孔结构的优势，使纳米相可以更均匀地分布在所得产品中。通过对具有不同纳米相（例如贵金属，铁，氧化铁等）的纤维素纤维进行浸渍处理，所得产品将具有一定的功能，例如磁性，抗静电，抗辐射，抗渗透，抗微生物和虽然将商业纳米颗粒直接浸渍到纤维素纤维中可能是困难且昂贵的，但是在十二烷基磺酸钠浸渍技术中是将离子液体连续地引入到纤维素纤维的微孔结构中。当前体在某些条件下（例如提高温度）使用时，浸渍的化学物质会在纤维的微孔内反应并形成所需的纳米粒子。本演示以氧化铁纳米粒子浸渍为例，描述了通过原位纳米粒子浸渍处理对天然纤维进行磁化的过程，以制造用于不同应用的磁性复合板产品，例如信号屏蔽板。该演讲还讨论了通过谷胱甘肽颗粒处理技术开发的新型磁性活性炭产品。

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  • 会议地点 Seattle WA(US)
  • 作者

    Sheldon Shi;

  • 作者单位

    Mechanical and Energy Engineering DepartmentUniversity of North TexasDenton, Texas;

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  • 原文格式 PDF
  • 正文语种 eng
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