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首页> 外文期刊>Journal of Applied Polymer Science >Microfocus small-angle X-ray scattering investigation of the skin-core microstructure of lyocell cellulose fibers
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Microfocus small-angle X-ray scattering investigation of the skin-core microstructure of lyocell cellulose fibers

机译：莱赛尔纤维素纤维表皮核心结构的微焦点小角X射线散射研究

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摘要

Skin-core microstructures in hydrated lyocell cellulose fibers were investigated using microfocus small-angle X-ray scattering (SAXS). Both single fibers and fiber cross sections were observed. In all the fibers studied, a thin skin layer was observed in which the voids were smaller in cross section and better oriented than those in the core. The division between skin and core may not be sharp. A draw ratio of 0.80 gave fibers with voids that were shorter, larger in cross section, and more misoriented than the fibers produced with a draw ratio of 1.68. In contrast, there was little difference in void structure between samples coagulated in water and in 25% amine oxide aqueous solution. The results are explained in the context of the spinodal decomposition, which is thought to occur during coagulation. (C) 2002 John Wiley Sons, Inc. [References: 22]
机译：使用微焦点小角度X射线散射（SAXS）研究了水合莱赛尔纤维素纤维中的皮肤核心微结构。观察到单纤维和纤维横截面。在所有研究的纤维中，均观察到了薄皮层，其空隙比纤芯中的空隙小，取向性更好。皮肤和核心之间的划分可能不清晰。拉伸比为0.80时，与拉伸比为1.68的纤维相比，纤维空隙更短，横截面更大，方向更不正确。相反，在水中凝结的样品和在25％氧化胺水溶液中凝结的样品之间的空隙结构几乎没有差异。在旋节线分解的背景下解释了结果，据认为发生在凝结过程中。 （C）2002 John Wiley Sons，Inc. [参考：22]

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