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首页> 外文期刊>繊維学会誌 >Favorable 3D-network Formation of Chitin Nanofibers Dispersed in Water Prepared Using Aqueous Counter Collision
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Favorable 3D-network Formation of Chitin Nanofibers Dispersed in Water Prepared Using Aqueous Counter Collision

机译：分散在水中的几丁质纳米纤维的有利3D网络形成

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摘要

In this study, chitin nanofibers were at first successfully prepared using aqueous counter collision (= ACC) method. Dispersion states of the chitin nanofibers in water were compared with aqueous dispersion of cellulose nanofibers in dynamic viscoelastic properties. Morphology of the chitin nanofibers was observed by transmission electron microscopy and polarizing light microscopy. As a result, the ACC treatment provided aqueous dispersion of chitin nanofibers having width of 10-20 nm, and repetition of the treatment allowed a homogeneous aqueous dispersion of the similar sized nanofibers, instead of further pulverization, from the intermediately treated mixture containing different scaled chitin fibers co-existed. The homogeneous dispersion containing chitin nanofibers exhibited much higher dynamic storage and loss moduli when compared with an aqueous cellulose nanofiber system. The dynamic storage modulus of the chitin dispersion tended to increase with increase in the amount of such homogeneous nanofibers, differing from the case of nano-size effects found in the cellulose system that was oppositely decreased. This indicated that the chitin nanofibers dispersed in water were likely to engage a more favorable network.
机译：在这项研究中，首先使用水性反冲（ACC）方法成功制备了几丁质纳米纤维。将几丁质纳米纤维在水中的分散状态与纤维素纳米纤维在动态粘弹性性质中的水分散状态进行了比较。通过透射电子显微镜和偏振光显微镜观察了几丁质纳米纤维的形态。结果，ACC处理提供了具有10-20nm的宽度的几丁质纳米纤维的水分散体，并且重复该处理使得具有类似尺寸的纳米纤维的均一的水分散体能够从包含不同规模的中间处理的混合物中进一步粉碎而不是进一步粉碎。几丁质纤维共存。与含水纤维素纳米纤维系统相比，含有几丁质纳米纤维的均匀分散体表现出高得多的动态存储和损耗模量。甲壳质分散体的动态储能模量倾向于随此类均质纳米纤维数量的增加而增加，这与在纤维素体系中发现的纳米尺寸效应相反地减小的情况不同。这表明分散在水中的几丁质纳米纤维可能会参与更有利的网络。

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  • 来源
    《繊維学会誌》 |2011年第4期|p.91-95|共5页
  • 作者

    Ryota Kose; Tetsuo Kondo;

  • 作者单位

    Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, 6-10-1, Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan;

    Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, 6-10-1, Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan;

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