نتایج جستجو برای: clay nanocomposite was studied by scanning electron microscopy and x

تعداد نتایج: 17942241  

Journal: :international journal of nanoscience and nanotechnology 2014
saeed dadashi seyed mohammad mousavi zahra emam-djomeh abdulrasoul oromiehie

nanocomposite composed of organoclay(cloisite 20a-c20a) and poly lactic acid (pla) was prepared by solvent casting method. physical, mechanical, thermal, barrier and microstructure properties of the composite were studied. x-ray diffraction (xrd) patterns and scanning electron microscopy (sem) images revealed that the diffraction peak of nanoclay shifted to lower angles and the d-spacing betwee...

H. R. Shahverd, T. Rostamzadeh,

Abstract: In this study Al-5 (Vol) % SiCp nanocomposite powder has been successfully synthesized by high-energy planetary milling of Al and SiC powders for a period of 25 h at a ball-to-powder ratio of 15:1. The changes of the lattice strain, the crystallite size of the matrix phase, and the nanocomposite powder microstructure with time have been investigated by X-ray diffraction (XRD), X-ray m...

Journal: :علوم و تکنولوژی پلیمر 0
لیلا حاتمی وحید حدادی اصل حسین روغنی ممقانی لیلا احمدیان علم مهدی سلامی کلجاهی دانشگاه صنعتی امیرکبیر

w       ater born poly(styrene-butyl acrylate)/clay nanocomposite latexes were synthesized by a novel initiating system of activators generated by   electron transfer (aget) in a system of atom transfer radical polymerization   (atrp). initially, the clay was swelled in a mixture of styrene, butyl acrylate,   and hexadecane. the mixture was then sonicated to obtain a stable miniemulsion. to   s...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده علوم 1390

a novel silver (ag) nanocomposite electrode was proposed that fabricated from metal nanostructures and ionic liquids. the combined application of unique properties of nanomaterials and ionic liquids in the design of this ag nanocomposite results in electrodes with interesting advantages compared to the conventional metal disk electrode. in the first part of this thesis, the elecrocatalytic eff...

This study investigates preparation of melamine formaldehyde / montmorillonite nanocomposite coatings and evaluates its abrasion resistance property as a new material for wood based panel products. The ultrasonicated MF resin/clay blends with different clay loadings were applied in the form of coatings to the saturated decorative paper to prepare thermoset prepregs. Morphology and structure of ...

M. Ranjbar M. Yousefi N. Shahsavan S. H. Mahmoudi Najafi

The study describes the synthesis and characterization of zinc(II) minoxidil nanocomposite (1). The reaction between zinc(II) acetate, minoxidil, {C9H15N5O=minoxidil=(2,4-diamino-6-piperidine-1-yl) pyrimidine N-oxide)} as a ligand and KI as bridging agent, in methanol at 60°C leads to the formation of nano-sized Zn(II) minoxidil nanocomposite, 1. Characterization of (1) was carried out by eleme...

H. Bakhtiari N. Mastali

In this study, TiO2 and ZnO nanofilms were prepared by sol-gel spin-coating method. Nanofilms were characterized by X-ray Diffraction (XRD), Energy Dispersive Analysis of      X-ray (EDX), Scanning Electron Microscopy (SEM) and Field Emission Scanning Electron Microscopy (FE-ESM). Structural and morphological properties of nanofilms were investigated. The average crystalline size of ...

H. Bakhtiari N. Mastali

In this study, TiO2 and ZnO nanofilms were prepared by sol-gel spin-coating method. Nanofilms were characterized by X-ray Diffraction (XRD), Energy Dispersive Analysis of      X-ray (EDX), Scanning Electron Microscopy (SEM) and Field Emission Scanning Electron Microscopy (FE-ESM). Structural and morphological properties of nanofilms were investigated. The average crystalline size of ...

Journal: :international journal of nano dimension 0
a. hosseinian department of engineering science, faculty of engineering, university of tehran,tehran, iran. a.r. mahjoub department of chemistry, tarbiat modares university,tehran ,iran m. movahedi department of chemistry, payame noor university, isfahan, iran.

a new tris-chelate cd(ii) complex, [cd(dadmbtz)3](clo3)2 has been successfully synthesized and characterized by ir, 1h, 13c nmr spectroscopy, elemental analysis and single crystal x-ray determination. the thermal behavior, uv-vis and fluorescence spectra of compound were studied. in reaction with dadmbtz, cadmium (ii) forms a tris-chelate complex with nearly c3 symmetry for coordination polyhed...

Journal: :dental research journal 0
mehdi mehdikhani-nahrkhalaji mohammad hossein fathi vajihesadat mortazavi sayed behrouz mousavi ali akhavan abbas haghighat

poly (lactide-co-glycolide)/bioactive glass/hydroxyapatite (pbgha) and poly (lactide-co-glycolide)/ bioactive glass (pbg) nanocomposite coatings with bone. materials and methods: sol-gel derived 58s bioactive glass nanoparticles, 50/50 wt% poly (lactic acid)/poly (glycolic acid) and hydroxyapatite nanoparticles were used to prepare the coatings. the nanocomposite coatings were characterized by ...

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