نتایج جستجو برای: acrylic emulsion
تعداد نتایج: 20470 فیلتر نتایج به سال:
The core-shell acrylic emulsion was synthesized by a semicontinuous seeded polymerization with acrylate monomers as the main materials and octafluoropentyl methacrylate (OFPMA) modified monomers. influences of OFPMA on hydrophobicity, thermal stability mechanical properties latex film were investigated. Fourier transform infrared spectroscopy (FTIR) analysis X-ray photoelectron (XPS) indicated ...
Aqueous emulsion acrylic adhesive was prepared by batch polymerization With 2-ethylhexyl acrylate (2-EHA) and butyl (BA) as soft monomers, methyl methacrylate (MMA) hard monomer, acid (AA), amide (AM) hydroxyethyl (HEA) hydrophilic functional dodecanethiol (NDM) molecular weight regulator, Sodium dodecyl benzene sulfonate (SDBS) octyl phenol polyoxyethylene ether (op-10) mixed emulsifiers, ammo...
واکنش های تک ظرفی دو مینو، آریل آمین ها، آلکیل پروپیولات ها، ایزاتین و ایندول در حلال اتانول و در دمای اتاق با استفاده از fecl3 به عنوان کاتالیزور مورد بررسی قرار گرفت، که منجر به تشکیل محصول 2-(2-oxo-1,2-dihydro-1h-[3,3]biindolyl-3-yl)-3-aryl amine-acrylic acid alkyl ester با راندمان بالا گردید.
the use of panoramic radiography, due to its numerous advantages, is increasing. radiographic films used in this technique are of double emulsion (de) type which are used with intensifying screens. single emulsion (se) films can also be used. the purpose of this study was to determine the exposure parameters to achieve an appropriate optical density in these two types of films, and to estimate ...
Cleaning is one of the most important, essential, and delicate operation which has to be handled by conservators before applying new materials any substrates. In past decades, nanotechnology introduced concepts in conservation field, have been providing many advantageous performances, especially higher than older materials. As a result, already started use nanomaterials cleaning processes artif...
The effect of silicone nano-emulsion softener against silicone conventional emulsion softener on the physical properties of cotton fabric has been studied. It is observed that the nano-emulsion softener improves the feel, softness and crease recovery to a higher extent compared to the conventional emulsion softener. However, the nano form of emulsion causes higher loss in strength with increase...
The purpose of this study was to produce oil in water Nano-emulsion by ultrasonication, and investigate the influence of Inulin and β-cyclodextrin on the prosperities of Nano-emulsion and morphology of spray dried microcapsules. The results showed that emulsion droplet size in samples containing β-cyclodextrin (8.28±0.11 nm) was less than Inulin samples (97.12±4.2 nm). Considering SEM photos, β...
The purpose of this study was to produce oil in water Nano-emulsion by ultrasonication, and investigate the influence of Inulin and β-cyclodextrin on the prosperities of Nano-emulsion and morphology of spray dried microcapsules. The results showed that emulsion droplet size in samples containing β-cyclodextrin (8.28±0.11 nm) was less than Inulin samples (97.12±4.2 nm). Considering SEM photos, β...
The present investigation involves formulation and evaluation of microspheres with Repaglinide as model drug for prolongation of drug release time. An attempt was made to prepare microspheres of Repaglinide by Quasi emulsion solvent diffusion technique, with a view to deliver the drug at sustained or controlled manner in gastrointestinal tract and consequently into systemic circulation. The mic...
BACKGROUND/AIM Acrylic lens size and shape may influence the rate of posterior capsule opacification (PCO) and need for Nd:YAG capsulotomy. The aim of this study is to compare the Nd:YAG capsulotomy rate of the three piece acrylic/PMMA AcrySof MA series lens with the one piece acrylic AcrySof SA series lens. METHODS 434 eyes of 329 patients who had cataract extraction and implantation of one ...
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