Cellulose was dissolved in NaOH–ure

Cellulose was dissolved in NaOH–urea–water and beads were prepared by coagulation into nitric acid
as well as saline solution. Morphology and ultrastructure of the beads were modified by controlling
the molarity of the acid (0–10 M) and temperature (5–50 ◦C) of the coagulation media and the cellulose
concentration (3–7%). The beads were characterized by optical image analysis (shape, volume, and size
distribution) and weight (total porosity). Cross-sections of CO2 critical point dried beads were studied
by field emission scanning electron microscopy (FE-SEM) and specific surface areas of 336–470 m2 g−1
were determined from nitrogen adsorption isoterms. Pore size distribution was analyzed using solute
exclusion technique. Our results demonstrate that the ultrastructure can be controlled by alteration of
the coagulation conditions. Changes in size, shape and surface area were substential. Also generation of
micro- (2 A), ˚ meso-, or macropores (50 A) ˚ can be favored.

ผลลัพธ์ (อังกฤษ) 2:

Cellulose was Dissolved in Water-NaOH-urea and nitric acid Into Beads were prepared by coagulation
as well as Saline Solution. Morphology and ultrastructure of the Beads were Controlling Modified by
the molarity of the acid (0-10 M) and Temperature (5-50 ° C) coagulation of the Media and the cellulose
concentration (3-7%). Beads were characterized by the Optical image Analysis (Shape, volume, and Size
Distribution) and weight (total porosity). Cross-Sections of CO2 Critical Point Dried Beads were studied
by Scanning Electron microscopy Field emission (FE-SEM) and specific surface areas of 336-470 m2 G-1
were determined from nitrogen adsorption Isoterms. Pore Size Distribution was analyzed using solute
exclusion Technique. Our results demonstrate that the ultrastructure Can be controlled by Alteration of
the coagulation conditions. Changes in size, shape and surface area were substential. Also Generation of
Micro-(? 2 A), Meso ˚, or macropores (? 50 A) ˚ Can be favored.

ผลลัพธ์ (อังกฤษ) 3:

Cellulose was dissolved in NaOH - urea - water and beads were prepared by coagulation into nitric acid.As well as saline solution. Morphology and ultrastructure of the beads were modified by controlling.The molarity of the acid (0 - 10 M) and temperature (5 - 50 cream C) of the coagulation media and the cellulose.Concentration (3 - 7%). The beads were characterized by optical image analysis (shape volume and size,,,Distribution) and weight (total porosity). Cross-sections of CO2 critical point dried beads were studied.By field emission scanning electron microscopy (FE-SEM) and specific surface areas of 336 - 470 M2 g − 1.Were determined from nitrogen adsorption isoterms. Pore size distribution was analyzed using solute.Exclusion technique. Our results demonstrate that the ultrastructure can be controlled by alteration of.The coagulation conditions. Changes in size shape and, surface area were substential. Also generation of.Micro - (2 A), ˚ meso -, or macropores (50 A) ˚ can be favored.