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为了研究二次纤维的角质化机理并提出抑制方法,实现二次纤维的高效绿色循环利用,综述了基于共结晶角质化机理的纤维素聚集态结构的研究现状和进展,介绍了纤维素聚集态结构模型和氢键链接方式,着重介绍了目前纤维素聚集态结构研究和氢键研究的进展,综述了目前纤维素聚集态研究手段的多样化:计算机分子模拟、广角X衍射衍射(XRD)、交叉极化/魔角旋转固体核磁共振13C(CP/MAS13C NMR),同步辐射XRD衍射、中子衍射和傅里叶红外(FT-IR)。研究内容从对天然纤维素的基本建模深入到分子链水平的原子链接、氢键模式的研究,研究手段经历了从使用单一仪器发展到多种仪器手段辅助表征的过程。纤维素聚集态结构的研究将是二次纤维角质化机理研究以及纤维素化学研究的重要课题。
In order to study the keratinization mechanism of secondary fibers and put forward the inhibition method to realize the efficient green recycling of secondary fibers, the research status and progress of the cellulose aggregated structure based on the cokelation keratinization mechanism are reviewed. Structural model and hydrogen bonding method, the current research on the structure of cellulose aggregates and hydrogen bonding are reviewed. The current diversification of cellulose aggregates research methods are summarized: computer molecular simulation, wide angle X-ray diffraction (XRD) Cross polarization / magic angle spin solid state nuclear magnetic resonance 13C (CP / MAS13C NMR), synchrotron radiation XRD diffraction, neutron diffraction and Fourier transform infrared (FT-IR). Research contents From the basic modeling of natural cellulose to the molecular chain at the level of atomic link, hydrogen bonding mode research methods have gone from the use of a single instrument to the development of a variety of instruments to assist the characterization process. Research on the structure of cellulose aggregates will be an important topic in the study of keratinization mechanism of secondary fibers and cellulose chemistry.