نتایج جستجو برای: low density polyethyleneclay nanocomposite

تعداد نتایج: 1524237  

Journal: :Nanotechnology 2010
A Sánchez-Ferrer M Reufer R Mezzenga P Schurtenberger H Dietsch

We report on the synthesis of nanocomposites with integrated ellipsoidal silica-coated hematite (SCH) spindle type nanoparticles which can act as crosslinking agents within an elastomeric matrix. Influence of the surface chemistry of the hematite, leading either to dispersed particles or crosslinked particles to the elastomer matrix, was studied via swelling, scattering and microscopy experimen...

2017
M. Yu Yi Liu A. Moser D. Weller David J. Sellmyer D. J. Sellmyer

2015
Mehdi Mehdikhani-Nahrkhalaji Mohammad Hossein Fathi Vajihesadat Mortazavi Sayed Behrouz Mousavi Ali Akhavan Abbas Haghighat Batool Hashemi-Beni Sayed Mohammad Razavi Fatemeh Mashhadiabbas

BACKGROUND The aim of this study was to evaluate the interaction of bioactive and biodegradable 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 na...

2013
Anupama Chaturvedi Ashutosh Tiwari Atul Tiwari

This communication describes the development of graphene and graphene reinforced polyvinylester nanocomposites. Low concentration of graphene was incorporated in the polymer matrix with the help of two different solvents. The role of solvent in the nanocomposite was studied. The FTIR spectroscopy and electron microscopy have supported the presence of graphene in the nanocomposites. It was disco...

Journal: :Composites Part B-engineering 2021

Among the various requirements that high voltage direct current (HVDC) insulation materials need to satisfy, sufficiently low electrical conductivity is one of most important. The leading commercial HVDC material currently an exceptionally clean cross-linked low-density polyethylene (XLPE). Previous studies have reported DC-conductivity (LDPE) can be markedly reduced either by including a fract...

We performed a density functional theory investigation on the structural and electronic properties of pristine and nitrogen-doped TiO2/Graphene oxide nanocomposites as the adsorbents for the removal of toxic NO molecules in the environment. We presented the most stable adsorption configurations and examined the interaction of NO molecule with these doped and undoped nanocomposites. It turns out...

2012
S. Govindan E. A. K. Nivethaa R. Saravanan V. Narayanan A. Stephen

Chitosan–silver (CS–Ag) nanocomposite materials were synthesized by a simple chemical method. The synthesized CS–Ag nanocomposite contains 20 wt% silver. Silver nanoparticles were synthesized by chemical reduction method as well. The CS–Ag nanocomposite was characterized using Field emission scanning electronic microscope (FESEM), X-ray diffraction (XRD) and Fourier transform infrared spectrosc...

2018
Eman M. Fayyad Aboubakr M. Abdullah Mohammad K. Hassan Adel M. Mohamed Chuhong Wang George Jarjoura Zoheir Farhat

Dispersion of 2D carbon nitride (C3N4) nanosheets into a nickel phosphorous (NiP) matrix was successfully achieved by ultrasonication during the electroless plating of NiP from an acidic bath. The morphology and thickness, elemental analysis, phases, roughness, and wettability for as-plated and heat-treated nanocomposite were determined by scanning electron microscopy, energy-dispersive X-ray s...

Journal: :iranian journal of pharmaceutical research 0
ma ghaffari

nonenzymatic glycation of low density lipoprotein (ldl) is a reaction of glucose and other reducing sugars with apolipoprotein b100 (apo-b100) lysine residues. in diabetes, this reaction is greatly accelerated and is important in the pathogenesis of diabetic complications. the objective of this study was to investigate in vitro effects of ?-tocopherol, ascorbic acid and lycopene on ldl glycatio...

Journal: :progress in biological sciences 2013
ali mohammadian mohammad reza nourani seyed javad mowla mahmood tavallaei yu liang

micrornas (mirnas) are short, endogenous non-coding rnas that function as guide molecules to regulate transcription of their target messenger rnas. several methods including low-density qpcr arrays are being increasingly used to profile the expression of these molecules in a variety of different biological conditions. reliable analysis of expression profiles demands removal of technical variati...

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