نتایج جستجو برای: fe3 mmt nanocomposite

تعداد نتایج: 17723  

F Zare Jouneghani H Shahrani Korani M.H Yas,

In this study, the mechanical and thermal behavior of the nano-reinforced polymer composite reinforced by Montmorillonite (MMT) nanoparticles is investigated. Due to low cost of computations, the 3D representative volume elements (RVE) method is utilized using ABAQUS finite element commercial software. Low density poly ethylene (LDPE) and MMT are used as matrix and nanoparticle material, respec...

Journal: :iranian chemical communication 0
alireza khorshidi department of chemistry, faculty of sciences, university of guilan, p.o. box: 41335-1914, rasht, iran shahab shariati department of chemistry, faculty of sciences, rasht branch, islamic azad university, rasht, iran masoumeh aboutalebi department of chemistry, faculty of sciences, university of guilan, p.o. box: 41335-1914, rasht, iran neda mardazad department of chemistry, faculty of sciences, university of guilan, p.o. box: 41335-1914, rasht, iran

fe3o4 magnetic nanoparticles were synthesized by co-precipitation of fe2+ and fe3+ in aqueous naoh. then silica was coated on the obtained nanoparticles and the whole composite was functionalized with chlorosulfonic acid in ch2cl2. the obtained nanocomposite (fe3o4@sio2-so3h) was characterized by ft-ir, vsm and xrd techniques and was used as an efficient catalyst in condensation reaction of ind...

Journal: :International Journal of Pharmaceutics 2021

This work investigated the technical feasibility of preparing, stabilizing and isolating poorly water-soluble drug nanoparticles via a small-scale antisolvent precipitation process operating in semi-continuous mode. Specifically, novel was demonstrated for carrier particle mediated production, stabilization isolation valsartan into solid form using montmorillonite clay particles as carrier. The...

2010
W. Brostow M. Dutta J. Ricardo de Souza P. Rusek A. Marcos de Medeiros E. N. Ito

Nanocomposites of PMMA+MMT Brazilian clays were developed by mechanical mixing in co-rotational twinscrew extrusion and injection molding with varying weight fraction of MMT Brazilian clays. The clays were purchased in crude form and then washed and purified to extract the organic materials and contaminants. Dynamic friction and wear rate of these composites were studied as a function of concen...

2010
Martin Reading

Polymer nanocomposites have attracted great interest over many years, because of the enhanced properties exhibited by such systems. However, it is only recently that the electrical characteristics of this class of material have begun to be studied in detail. Whenever fillers are added to a host polymer matrix, dispersion is of critical importance since, while a well dispersed nanophase may be b...

2015
D. Merinska

The article deals with the preparation, properties and the usage of polymer barrier films. The problem of exfoliation and dispersion of the filler in the polymer matrix and mechanical properties of barrier films is discussed. This problem is connected with the use of nanofiller either in the polymer matrix or on the surface of prepared films. Together the evaluating comparison of used nanofille...

Introdution: One of the main reasons of dental caries is the increase in microbial activity in the oral cavity. Streptococcus mutans (S. mutans) is the main etiological agent in dental caries. The aim of this study was preparation and evaluation bio-nanocomposite Chitosan CS-St-MMT encapsulated with Curcumin fabricated by precipitation and ionic gelation method and antimicrobial effect was inve...

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