The Gelation of Nitrocellulose
نویسنده
چکیده
of Results: % Ethyl Acetate W1166 W1167 W1168 W1169 W1170 W1171 #54 #50 #5036 #5060 #3362 #52 100 D F D D D D 70 D D D D D D 50 D D ND D D D 40 D F ND D ND D 35 D F ND D ND D
منابع مشابه
Electrospun Nitrocellulose and Composite Nanofibers
Electrospinning was applied to nitrocellulose (NC) solutions in DMF, DMSO and Ethyl methyl keton to obtain NC nanofibers. Electrospraying process was observed when DMF was used as solvent. In comparison to NC/DMF, NC/DMSO solution resulted in the formation of a coating film as indicate by SEM. Two different electrospun nanofibers, smooth nanofibers wit...
متن کاملGelation Time of Hexamethylenetetramine Polymer Gels Used in Water Shutoff Treatment
Among the methods available to reduce water production, injecting a gelling system composed of a polymer and a crosslinker has been widely used. In this work, a hydrogel was prepared by crosslinking of an aqueous solution containing hexamethylenetetramine (HMTA) as crosslinker, hydrochloric acid (HCl) as an activator, and the co-polymer of 2-acrylamido-2methyl-propanesulfonic-acid sodium salt (...
متن کاملFormulation of Ibuprofen Beads by Ionotropic Gelation
Microencapsulation has become a common technique in the production of controlled release dosage forms. Many results have been reported, concerning the use of alginate beads as controlled release drug formulations. Alginate has a unique gel-forming property in the presence of multivalent cations, in an aqueous medium. Ibuprofen is an excellent analgesic and antipyretic, non-steroidal anti-inflam...
متن کاملExperimental and Theoretical Investigation of Gelation Time of Nanostructured Polymer Gels by Central Composite Approach
Currently available polymers as a component of in-situ gels are unsuitable for treating high-temperature/high-salinity reservoirs due to their chemical and thermal degradation. In this study, a new copolymer-based gel system including high molecular weight nanostructured polymers (NSPs) was developed to address the excessive water production problem in reservoirs under harsh conditions. The sta...
متن کاملThe Histological Characteristics of Cultured Oral Epithelium in Different Culture Conditions
Background: This study was undertaken to establish the characterization of cultured oral mucosal epithelium and introducing them as an alternative source for reconstruction of ocular surface disease. Methods: Human oral epithelial cells were cultured on simple media (DMEM/HF12) as control and co-cultured on mitomycin C-treated 3T3 feeder layer, on the amniotic membrane (AM) without nitrocellulo...
متن کامل