The colloidal structure of a cellulose fiber

Abstract We present a small angle X-ray scattering (SAXS) study of the colloidal structure of regenerated cellulose fibers, air-gap spun from an ionic liquid solution. Based on the data, and a different interpretation of the anisotropic SAXS pattern, we propose a slightly different colloidal structure of the fibers, than what is commonly assumed for regenerated cellulose fibers. Fibers with two different degrees of orientation, as produced by different draw ratios, DR = 2 and 15, respectively, are analyzed. The 2D SAXS pattern is highly anisotropic with striking cross-like pattern, having scattering predominantly perpendicular and parallel to the fiber axis. This cross-like pattern suggest a colloidal structure with oriented crystalline lamellae of ca. 10 nm thickness, embedded within a continuous matrix of amorphous cellulose. The lamellae are oriented with their normal parallel with the fiber axis. Complementary wide angle X-ray diffraction data confirm that the lamellae normal direction corresponds to the cellulose chain direction (c-direction) in the monoclinic cellulose crystal (Cellulose II). Graphic abstract

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Non-woven fabrics of fine regenerated cellulose fibers prepared from ionic-liquid solution via wet type solution blow spinning

Carbohydrate Polymers ◽

10.1016/j.carbpol.2019.115258 ◽

2019 ◽

Vol 226 ◽

pp. 115258 ◽

Cited By ~ 6

Author(s):

Jiaping Zhang ◽

Hideki Kitayama ◽

Yasuo Gotoh ◽

Antje Potthast ◽

Thomas Rosenau

Keyword(s):

Ionic Liquid ◽

Cellulose Fibers ◽

Liquid Solution ◽

Woven Fabrics ◽

Regenerated Cellulose ◽

Type Solution ◽

Solution Blow Spinning ◽

Ionic Liquid Solution

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Fabrication and Application of SERS-Active Cellulose Fibers Regenerated from Waste Resource

Polymers ◽

10.3390/polym13132142 ◽

2021 ◽

Vol 13 (13) ◽

pp. 2142

Author(s):

Shengjun Wang ◽

Jiaqi Guo ◽

Yibo Ma ◽

Alan X. Wang ◽

Xianming Kong ◽

...

Keyword(s):

Au Nanoparticles ◽

Cellulose Fiber ◽

Cellulose Fibers ◽

Regenerated Cellulose ◽

Sers Substrate ◽

Au Nps ◽

Convenient Approach ◽

Theoretical Simulations ◽

Difference Time ◽

Raman Probe

The flexible SERS substrate were prepared base on regenerated cellulose fibers, in which the Au nanoparticles were controllably assembled on fiber through electrostatic interaction. The cellulose fiber was regenerated from waste paper through the dry-jet wet spinning method, an eco-friendly and convenient approach by using ionic liquid. The Au NPs could be controllably distributed on the surface of fiber by adjusting the conditions during the process of assembling. Finite-difference time-domain theoretical simulations verified the intense local electromagnetic fields of plasmonic composites. The flexible SERS fibers show excellent SERS sensitivity and adsorption capability. A typical Raman probe molecule, 4-Mercaptobenzoicacid (4-MBA), was used to verify the SERS cellulose fibers, the sensitivity could achieve to 10−9 M. The flexible SERS fibers were successfully used for identifying dimetridazole (DMZ) from aqueous solution. Furthermore, the flexible SERS fibers were used for detecting DMZ from the surface of fish by simply swabbing process. It is clear that the fabricated plasmonic composite can be applied for the identifying toxins and chemicals.

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Irregular Electrodeposition of Cu-Sn Alloy Coatings in [EMIM]Cl Outside the Glove Box with Large Layer Thickness

Coatings ◽

10.3390/coatings11030310 ◽

2021 ◽

Vol 11 (3) ◽

pp. 310

Author(s):

Lars Lehmann ◽

Dominik Höhlich ◽

Thomas Mehner ◽

Thomas Lampke

Keyword(s):

Layer Thickness ◽

Alloy System ◽

Liquid Solution ◽

Complexing Agents ◽

X Ray Diffraction ◽

X Ray ◽

Argon Stream ◽

Ionic Liquid Solution ◽

The Relationship ◽

Layer Composition

Thick Cu−Sn alloy layers were produced in an [EMIM]Cl ionic-liquid solution from CuCl2 and SnCl2 in different ratios. All work, including the electrodeposition, took place outside the glovebox with a continuous argon stream over the electrolyte at 95 °C. The layer composition and layer thickness can be adjusted by the variation of the metal-salts content in the electrolyte. A layer with a thickness of up to 15 µm and a copper content of up to ωCu = 0.86 was obtained. The phase composition was characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), and X-ray fluorescence (XRF). Furthermore, it was found that the relationship between the alloy composition and the concentration of the ions in the electrolyte is described as an irregular alloy system as according to Brenner. Brenner described such systems only for aqueous electrolytes containing complexing agents such as cyanide. In this work, it was confirmed that irregular alloy depositions also occur in [EMIM]Cl.

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Research on Mechanical Properties of Several New Regenerated Cellulose Fibers

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.332-334.489 ◽

2011 ◽

Vol 332-334 ◽

pp. 489-495 ◽

Cited By ~ 2

Author(s):

Rong Zhou ◽

Ming Xia Yang

Keyword(s):

Mechanical Properties ◽

Phase Change Materials ◽

Cellulose Fiber ◽

Cellulose Fibers ◽

Regenerated Cellulose ◽

Pulp Fiber ◽

Pulp Fibers ◽

Bast Fiber ◽

Bamboo Pulp ◽

Lyocell Fiber

Regenerated cellulose fiber is the most widely-used and most variety of cellulose fiber. Five categories and ten kinds of fibers such as lyocell fiber, modal fiber, bamboo pulp fiber, sheng-bast fiber, Outlast viscose fiber were chosen as the research object. The strength property and elasticity of fibers in dry and wet state were tested and analysis. The comprehensive performances of fabrics were studied and mechanical properties of the fibers were listed in the order from good to bad by grey clustering analysis. The results show lyocell G100 and lyocell LF have better comprehensive mechanical properties ,while other new regenerated cellulose fibers’ comprehensive mechanical properties are general. Among these fibers modal fiber’s comprehensive mechanical properties are slightly better than sheng-bast fibers’ and bamboo pulp fibers’. Modal fiber, sheng-bast fiber and Bamboo pulp fiber have no significantly poor single parameter and all of them have better comprehensive mechanical properties than various viscose fibers. Outlast viscose in which has been added phase change materials sensitive to temperature by Microcapsule techniques fundamentally keeps similar comprehensive mechanical properties with other regenerated cellulose fibers,but its properties decline slightly .

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X-ray studies of regenerated cellulose fibers wet spun from cotton linter pulp in NaOH/thiourea aqueous solutions

Polymer ◽

10.1016/j.polymer.2006.02.044 ◽

2006 ◽

Vol 47 (8) ◽

pp. 2839-2848 ◽

Cited By ~ 82

Author(s):

Xuming Chen ◽

Christian Burger ◽

Dufei Fang ◽

Dong Ruan ◽

Lina Zhang ◽

...

Keyword(s):

Aqueous Solutions ◽

Cellulose Fibers ◽

Regenerated Cellulose ◽

Cotton Linter ◽

X Ray

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Preparation and Characterization of Cellulose Films with Curcumin

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.834-836.555 ◽

2013 ◽

Vol 834-836 ◽

pp. 555-558

Author(s):

Jaranya Suksulap ◽

Potjanart Suwanruji ◽

Jantip Setthayanond

Keyword(s):

Tensile Testing ◽

Color Change ◽

Sodium Hydroxide Solution ◽

Cellulose Fiber ◽

Regenerated Cellulose ◽

Color Strength ◽

X Ray ◽

Cellulose Films ◽

Regenerated Cellulose Fiber

The cellulose film was prepared from regenerated cellulose fiber residue by dissolving the cellulose in sodium hydroxide solution at low temperature (-15 °C). The properties of the prepared film were investigated by tensile testing, Scanning Electron Microscope (SEM), X-ray Diffractometer (XRD) and also swelling ratio. Curcumin was added into the film with three different concentrations. The color strength of the curcumin-added film was evaluated and the color change of this film in different pH was also reported.

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Reinforced magnetic cellulose fiber from ionic liquid solution

Nanomaterials and Energy ◽

10.1680/nme.12.00010 ◽

2012 ◽

Vol 1 (4) ◽

pp. 225-236 ◽

Cited By ~ 10

Author(s):

Mirela L. Maxim ◽

Ning Sun ◽

Hui Wang ◽

Joseph R. Sterner ◽

Anwarul Haque ◽

...

Keyword(s):

Ionic Liquid ◽

Cellulose Fiber ◽

Liquid Solution ◽

Ionic Liquid Solution

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Determination of Degree of Orientation in Regenerated Cellulose Fibers by Recording X-Ray Diffraction Spectrometer.

The Journal of the Society of Chemical Industry Japan ◽

10.1246/nikkashi1898.64.202 ◽

1961 ◽

Vol 64 (1) ◽

pp. 202-206

Author(s):

Hiroshi TANZAWA

Keyword(s):

Cellulose Fibers ◽

Regenerated Cellulose ◽

X Ray Diffraction ◽

X Ray ◽

Degree Of Orientation

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Infrared Spectrum Test and Analysis of Regenerated Cellulose Fibers

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.671-674.1954 ◽

2013 ◽

Vol 671-674 ◽

pp. 1954-1957

Author(s):

Shun Bin Ma

Keyword(s):

Infrared Spectrum ◽

Cellulose Fiber ◽

Cellulose Fibers ◽

Regenerated Cellulose ◽

Pulp Fiber ◽

Test Results ◽

Bamboo Pulp ◽

Lyocell Fiber ◽

Regenerated Cellulose Fiber ◽

Regenerated Fibers

In this paper, the infrared spectrum of regenerated fibers have been tested and analyzed, such as Lyocell fiber, Modal fiber, regenerated cellulose fiber and Bamboo pulp fiber. Test results shown that: Lyocell fiber, Modal fiber, Bamboo pulp fiber are similar to viscose fiber in their infrared spectrogram, but the transmittance of characteristic absorption peaks of them are different.

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