scholarly journals Iodine Treatment of Lignin–Cellulose Acetate Electrospun Fibers: Enhancement of Green Fiber Carbonization

2014 ◽  
Vol 3 (1) ◽  
pp. 33-41 ◽  
Author(s):  
Makoto Schreiber ◽  
Singaravelu Vivekanandhan ◽  
Amar Kumar Mohanty ◽  
Manjusri Misra
2012 ◽  
Vol 30 (6) ◽  
pp. 916-922 ◽  
Author(s):  
Jia-zi Hou ◽  
Xiao-ping Sun ◽  
Wan-xi Zhang ◽  
Li-li Li ◽  
Hong Teng

2016 ◽  
Vol 4 (7) ◽  
pp. 2484-2493 ◽  
Author(s):  
Anitha Senthamizhan ◽  
Brabu Balusamy ◽  
Asli Celebioglu ◽  
Tamer Uyar

In this report, we demonstrated a synthetic strategy for the effective removal of Pb2+in water by creating stable “nanotraps” in electrospun porous cellulose acetate fibers encapsulated with dithiothreitol capped gold nanoclusters.


2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Afroditi Petropoulou ◽  
Slavko Kralj ◽  
Xenofon Karagiorgis ◽  
Ioanna Savva ◽  
Emilios Loizides ◽  
...  

2016 ◽  
Vol 151 ◽  
pp. 1240-1244 ◽  
Author(s):  
Dawei Hua ◽  
Zhongche Liu ◽  
Fang Wang ◽  
Buhong Gao ◽  
Fei Chen ◽  
...  

2014 ◽  
Vol 71 (12) ◽  
pp. 3163-3176 ◽  
Author(s):  
Thanaporn Chantarodsakun ◽  
Thammasit Vongsetskul ◽  
Kulachart Jangpatarapongsa ◽  
Patoomratana Tuchinda ◽  
Sukanda Uamsiri ◽  
...  

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Zhuang Li ◽  
Hongliang Kang ◽  
Ning Che ◽  
Zhijing Liu ◽  
Pingping Li ◽  
...  

Naproxen (NAP)/cellulose acetate hybrid nanofibers were prepared by positive and reversed emitting electrodes electrospinning setups. The morphology and structure of the resultant nanofibers were characterized, and the NAP release behaviors were investigated. It was found that NAP dispersed in the CA matrix in molecular level, and no aggregation and dimers of NAP were found in the resultant NAP/CA hybrid nanofibers due to the formation of hydrogen bonds between NAP and CA. The nanofibers obtained by reversed emitting electrode electrospinning setup have a thicker diameter and a faster NAP release rate compared with those obtained by positive emitting electrode electrospinning setup. The faster drug release of NAP from nanofibers prepared by reversed emitting electrode electrospinning is due to the fact that the concentration of NAP molecules near the surface of the nanofibers is relatively higher than that of the nanofibers prepared by positive emitting electrode electrospinning setup. The effects of the electrode polarity on the distribution of drugs in nanofibers can be used to prepare hybrid electrospun fibers of different drug release rates, which may found applications in biomedical materials.


2011 ◽  
Vol 175-176 ◽  
pp. 242-246 ◽  
Author(s):  
Hui Wang ◽  
Xiao Hong Qin ◽  
Jian Hua Cao

In this paper, the electrospinning of regenerated cellulose acetate (short as CA), acetone as the solvent, was basically studied, and the electrospinning setup used was self-designed. In order to explore the present condition of electrospun cellulose acetate nanofibers, the effect of traditional processing parameters on the cellulose acetate nanofibers was paid a lot of attention to, the influence of solution concentration especially, spinning voltage, the distance from spinneret to collecting screen on the morphology and the structure of the electrospun fibers. With a scanning electron microscope, the structures of the mats and the fibers were characterized and compared to the original acetate cellulose using an infrared spectrometer. It was concluded that the optimal processing parameters in the electrospinning were 8 wt%, 18 kV and 15 cm, respectively. Comparing the inner structure of the original CA and the electrospun fibers, the number of –OH groups changed apparently, this was mainly due to the dissolution.


Author(s):  
H. K. Plummer ◽  
E. Eichen ◽  
C. D. Melvin

Much of the work reported in the literature on cellulose acetate reverse osmosis membranes has raised new and important questions with regard to the dense or “active” layer of these membranes. Several thickness values and structures have been attributed to the dense layer. To ensure the correct interpretation of the cellulose acetate structure thirteen different preparative techniques have been used in this investigation. These thirteen methods included various combinations of water substitution, freeze drying, freeze sectioning, fracturing, embedding, and microtomy techniques with both transmission and scanning electron microscope observations.It was observed that several factors can cause a distortion of the structure during sample preparation. The most obvious problem of water removal can cause swelling, shrinking, and folds. Improper removal of embedding materials, when used, can cause a loss of electron image contrast and, or structure which could hinder interpretation.


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