Preparation and Characterization of Cellulose Films with Curcumin

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.

Comparative Study on Structural Performance of Several New Regenerated Cellulose Fibers

2012 ◽  
Vol 573-574 ◽  
pp. 174-180
Author(s):  
Rong Zhou ◽  
Chun Guang Li ◽  
Ming Xia Yang
Keyword(s):  
Cellulose Fiber ◽  
Degree Of Polymerization ◽  
Structural Performance ◽  
Regenerated Cellulose ◽  
Pulp Fiber ◽  
Bast Fiber ◽  
Bamboo Pulp ◽  
Lyocell Fiber ◽  
Regenerated Cellulose Fiber ◽  
Sectional Shape

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, viscose fiber, modal fiber, bamboo pulp fiber, and sheng-bast fiber were chosen as the research object. The sectional shape, crystallinity and degree of polymerization of fibers were tested and analysis, to explore the nature of the reasons for the formation of fiber performance difference, and to verify through experiments.

scholarly journals Effect of Various Parameters on Bio-Synthesis of Copper Nanoparticles Using Citrus Medica Linn (Lemon) Extract and Its Antibacterial Activity

2020 ◽  
Vol 1 (1) ◽  
pp. 51-58
Author(s):  
Sharmila Pradhan ◽  
Rajeswori Shrestha ◽  
Khuma Bhandari
Keyword(s):  
Antibacterial Activity ◽  
Copper Nanoparticles ◽  
Color Change ◽  
Diffusion Method ◽  
X Ray Diffraction ◽  
X Ray ◽  
Vis Spectroscopy ◽  
Crystalline Nature ◽  
Bio Synthesis

This research is focused on bio-synthesis of Copper nanoparticles (CuNPs) using lemon extract to study the effect of various parameters on synthesis and to explore antibacterial activity. The biomolecules present in lemon extract act as self reducing and stabilizing agent. The synthesis of CuNPs was found to be affected by various parameters like volume of the lemon extract, concentration of the precursor and the temperature etc. Preliminary characterization of formation of nanoparticles were done by color change and UV-visible (UV-vis) spectroscopy. Elemental composition of the prepared sample was determined via Energy Dispersive X-ray (EDX) Spectroscopy. Presence of important functional groups associated with biomolecules is well characterized by Fourier Transform Infrared spectroscopy (FTIR). Scanning Electron Microscopy (SEM ) revealed the formation agglomerated CuNPs of different shape and sizes and the X-ray diffraction pattern showed the formation of purely crystalline nature of CuNPs. Finally, agar well diffusion method showed that CuNPs have potential antibacterial activity against Gram-ve bacteria compared to Gram +ve bacteria.

Effect of regenerated cellulose fiber on the properties and microstructure of emulsion model system from meat batters

2019 ◽  
Vol 87 ◽  
pp. 83-89 ◽  
Author(s):  
Yinyu Zhao ◽  
Qin Hou ◽  
Songmin Cao ◽  
Yan Wang ◽  
Guanghong Zhou ◽  
...  
Keyword(s):  
Cellulose Fiber ◽  
Model System ◽  
Regenerated Cellulose ◽  
Emulsion Model ◽  
Regenerated Cellulose Fiber ◽  
Meat Batters

scholarly journals Regenerated Cellulose-Based Denim Fabric for Tropical Regions: An Analytical Study on Making Denim Comfortable

2016 ◽  
Vol 2016 ◽  
pp. 1-10 ◽  
Author(s):  
Annu Kumari ◽  
Karan Khurana
Keyword(s):  
Analytical Study ◽  
Natural Fiber ◽  
Cellulose Fiber ◽  
Regenerated Cellulose ◽  
Age Group ◽  
Tropical Regions ◽  
Denim Fabric ◽  
Regenerated Cellulose Fiber ◽  
The Masses ◽  
Garment Design

Denim is no more “work wear’’ in the present era. More than a need, it is a fashion commodity for every age group, specifically for youth. Garments with multiple permutations and combinations of denim fabric variables like fibers, yarns, and Lycra % and weaving techniques are available with differing garment design statements, but the comfort aspect is slightly ignored. To cater for the masses living in hot and humid areas, a denim fabric is being projected with varying garment constructional parameters. Regenerated cellulose-based fibers/yarns are considered as ecofriendly, cool, soft, fairly strong, and durable among other man-made and natural fiber-based yarns. The present study is an attempt to develop comfortable denim clothing using regenerated cellulose fiber derivatives, maintaining its traditional rustic look for tropical regions. Fabric performance evaluation methods were used to ascertain the performance of the newly developed clothing.

Dissolution of Absorbent Cotton in Ionic Liquid and Characterization of the Regenerated Cellulose

2013 ◽  
Vol 830 ◽  
pp. 163-166 ◽  
Author(s):  
Ri Na Wu ◽  
Hu Zhu ◽  
Bei Hai He
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Chemical Properties ◽  
Regenerated Cellulose ◽  
Absorbent Cotton ◽  
Cellulose Films ◽  
Cotton Linters ◽  
Regenerated Cellulose Films ◽  
Tga Analysis

Dissolution of absorbent cotton (DP above 4000) using ionic liquids as solvent and regeneration was investigated. The results show that 1-ally-3-methylimidazolium chloride (AMIMCl) was a good solvent to dissolve absorbent cotton and a solution of 3 wt% can be reached in 18 min at 120°C. Besides, as the dissolving temperature increased the time needed for the cotton linters to dissolve decreased. The physic-chemical properties of the regenerated cellulose films were also characterized by XRD, FTIR and TGA analysis.

Preparation of regenerated cellulose fiber via carbonation. I. Carbonation and dissolution in an aqueous NaOH solution

2002 ◽  
Vol 3 (1) ◽  
pp. 1-7 ◽  
Author(s):  
Sang Youn Oh ◽  
Dong Il Yoo ◽  
Younsook Shin ◽  
Wha Seop Lee ◽  
Seong Mu Jo
Keyword(s):  
Cellulose Fiber ◽  
Regenerated Cellulose ◽  
Naoh Solution ◽  
Regenerated Cellulose Fiber

Preparation and Characterization of Cellulose Carbamate Regeneration Membrane by Supercritical Carbon Dioxide

2013 ◽  
Vol 821-822 ◽  
pp. 1031-1034
Author(s):  
Xu Wang ◽  
Hai Yan Wu ◽  
Cui Yu Yin
Keyword(s):  
Phase Inversion ◽  
Solution Concentration ◽  
Coagulation Bath ◽  
Regenerated Cellulose ◽  
Structure And Properties ◽  
Inversion Process ◽  
X Ray ◽  
Cellulose Carbamate ◽  
Phase Inversion Process

The regenerated cellulose carbamate membranes were prepared by the phase inversion process. The structure and properties of the regenerated cellulose carbamate membranes were characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffractometry (XRD) and scanning electron microscopy (SEM). Besides, the effects of the casting solution concentration and the coagulation bath concentration on the mechanical property of regenerated cellulose carbamate membrane were discussed.

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