Behavior of chemically modified cellulose towards dyeing. XIV. Behavior of cotton and crosslinked cottons before and after mercerization towards some reactive dyestuffs

1982 ◽  
Vol 27 (3) ◽  
pp. 871-878
Author(s):  
A. T. El-Aref ◽  
E. Allam ◽  
M. Abou-Amer ◽  
Z. El-Hilw ◽  
A. Hebeish
Keyword(s):  
Chemically Modified ◽  
Before And After ◽  
Modified Cellulose

A New Polyethylene Corrosion Protecting Coating with Ion Selectivity

2011 ◽  
Vol 314-316 ◽  
pp. 273-278
Author(s):  
Yu Hua Dong ◽  
Ke Ren ◽  
Qiong Zhou
Keyword(s):  
Ion Selectivity ◽  
Nano Particles ◽  
Ammonium Bromide ◽  
Linear Low Density Polyethylene ◽  
X Ray Diffraction ◽  
Sulfosalicylic Acid ◽  
X Ray ◽  
Chemically Modified ◽  
Before And After ◽  
Industrial Standards

Linear low density polyethylene (LLDPE) was chemically modified with grafting maleic anhydride (MAH) monomer on its backbone by melting blending. Nano-particles SiO2 was modified by cationic surfactant hexadecyl trimethyl ammonium bromide (CTAB) and anionic surfactant sulfosalicylic acid (SSA) and added to PE coating respectively. Measurement of membrane potential showed that the coating containing modified SiO2 nano-particles had characteristic of ion selectivity. The properties of the different coatings were investigated according to relative industrial standards. Experimental results indicated that PE coating with ion selectivity had better performances, such as adhesion strength, cathodic disbonding and anti-corrosion, than those of coating without ion selectivity. Crystal structure of the coatings before and after alkali corrosion was characterized by Fourier transform infrared spectra (FTIR) and X-ray diffraction (XRD). Structure of the coating without ion selectivity was damaged by NaOH alkali solution, causing mechanical properties being decreased. And the structure of the ion selective coatings was not affected.

scholarly journals Resolution of Dialyzer Membrane-Associated Thrombocytopenia with Use of Cellulose Triacetate Membrane: A Case Report

2011 ◽  
Vol 2011 ◽  
pp. 1-3 ◽  
Author(s):  
Feyisayo Olafiranye ◽  
Win Kyaw ◽  
Oladipupo Olafiranye
Keyword(s):  
Platelet Count ◽  
Case Report ◽  
Cellulose Triacetate ◽  
Cellulose Membrane ◽  
Membrane Interaction ◽  
Synthetic Membranes ◽  
Synthetic Membrane ◽  
Before And After ◽  
The Difference ◽  
Modified Cellulose

Blood and dialyzer membrane interaction can cause significant thrombocytopenia through the activation of complement system. The extent of this interaction determines the biocompatibility of the membrane. Although the newer synthetic membranes have been shown to have better biocompatibility profile than the cellulose-based membranes, little is known about the difference in biocompatibility between synthetic membrane and modified cellulose membrane. Herein, we report a case of a patient on hemodialysis who developed dialyzer-membrane-related thrombocytopenia with use of synthetic membrane (F200NR polysulfone). The diagnosis of dialyzer membrane-associated thrombocytopenia was suspected by the trend of platelet count before and after dialysis, and the absence of other possible causes of thrombocytopenia. We observed significant improvement in platelet count when the membrane was changed to modified cellulose membrane (cellulose triacetate). In patients at high risk for thrombocytopenia, the modified cellulose membrane could be a better alternative to the standard synthetic membranes during hemodialysis.

Biosorption of methylene blue by chemically modified cellulose waste

2014 ◽  
Vol 29 (4) ◽  
pp. 817-823 ◽  
Author(s):  
Yanqiao Jin ◽  
Yizhuan Zhang ◽  
Qiufeng Lü ◽  
Xiansu Cheng
Keyword(s):  
Methylene Blue ◽  
Chemically Modified ◽  
Modified Cellulose

Feasibility of Chemically Modified Cellulose Nanofiber Membranes as Lithium-Ion Battery Separators

2020 ◽  
Vol 12 (37) ◽  
pp. 41211-41222
Author(s):  
Hyeyun Kim ◽  
Ulriika Mattinen ◽  
Valentina Guccini ◽  
Haidong Liu ◽  
Germán Salazar-Alvarez ◽  
...  
Keyword(s):  
Lithium Ion Battery ◽  
Lithium Ion ◽  
Cellulose Nanofiber ◽  
Chemically Modified ◽  
Nanofiber Membranes ◽  
Modified Cellulose

scholarly journals Biomimetic nanocomposite based on hydroxyapatite mineralization over chemically modified cellulose nanowhiskers: An active platform for osteoblast proliferation

2019 ◽  
Vol 125 ◽  
pp. 133-142 ◽  
Author(s):  
Elizângela H. Fragal ◽  
Thelma S.P. Cellet ◽  
Vanessa H. Fragal ◽  
Maria A. Witt ◽  
Mychelle V.P. Companhoni ◽  
...  
Keyword(s):  
Cellulose Nanowhiskers ◽  
Osteoblast Proliferation ◽  
Chemically Modified ◽  
Modified Cellulose

Effect of Surface Grafting-Modified on Structure and Property of Cellulose Fibers

2012 ◽  
Vol 627 ◽  
pp. 43-48
Author(s):  
Shu Hua Wang ◽  
Jin Ming Dai ◽  
Hu Sheng Jia ◽  
Bing She Xu
Keyword(s):  
Cellulose Fibers ◽  
X Ray Diffraction ◽  
Sem Images ◽  
Wet Strength ◽  
Structure And Property ◽  
Chemically Modified ◽  
Crosslinking Process ◽  
Acrylamide Polymerization ◽  
Modified Cellulose ◽  
Effect Of Surface

Cellulose fibers were chemically modified on surface by acrylamide polymerization and glutaraldehyde crosslinking. The chemical and morphological structures of modified cellulose fibers were investigated with X-ray diffraction, FTIR spectra, and scanning electron microscopy (SEM). The crystalline conformations of the cellulose fibers were slightly changed in polymerization and crosslinking process. The wet strength of modified cellulose fibers was improved. Appreciable difference between the surfaces of native and modified cellulose fibers was observed from SEM images.

Chemically modified cellulose nanofibril as an additive for two-component polyurethane coatings

2017 ◽  
Vol 134 (19) ◽  
Author(s):  
Sanna Virtanen ◽  
Saila Jämsä ◽  
Riku Talja ◽  
Harri Heikkinen ◽  
Sauli Vuoti
Keyword(s):  
Cellulose Nanofibril ◽  
Polyurethane Coatings ◽  
Chemically Modified ◽  
Two Component ◽  
Modified Cellulose
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