نتایج جستجو برای: nano clay

تعداد نتایج: 72168  

Journal: :Buildings 2023

In order to study the influence of nano-clay on crack resistance cement-based materials, two kinds nano-metakaolin (NMK) and nano-attapulgite clay (NMA) were considered. The early cracking process mechanical properties cement mortar (NCM) was studied by using a plate knife-edge constraint test. Based fractal theory, distribution characteristics NCM surface cracks revealed, calculation method fo...

Journal: :journal of ultrafine grained and nanostructured materials 2015
maryam hosseini-zori

nano-encapsulated iron oxide in zirconium oxide-coated mica pigments are thermally stable,innocuous to human health, non-combustible, and they do not conduct electricity. they could beapplied in several industries such as thermoplastics, cosmetics, food packaging, children toys, paints,automobiles coating, security purposes, and banknotes. nowadays, they are highly desirable inceramic decoratio...

Journal: :Silicon 2021

In this research, the corrosion effect has been investigated on high-cycle fatigue lifetime and fracture behavior for heat-treated aluminum-matrix nano-clay-composite piston aluminum alloys. For objective, after fabricating stir-casted nano-clay-composite, standard samples were machined rotary bending tests performed. To study effect, some specimens corroded in 0.00235 % H2SO4 solution 200 h th...

Journal: :Materials research foundations 2022

The usage of clay polymer composites has increased in the past few decades. Due to extensive availability, wide surface areas, and good adsorption efficiency polymers are gaining popularity amongst researchers remove range organic as well inorganic pollutants from effluents. This book chapter sheds light on characteristics, occurrence, types synthesis minerals used for preparing nano-clay compo...

Journal: :علوم و تکنولوژی پلیمر 0
عفت جودار محمدحسین بهشتی محمد عطایی

nanocomposites based on vinyl ester resin (derakane 470-300) and nano clay (cloisite 30b) were prepared. the effect of clay content of 1, 3 and 5% (by weight) on the morphology, mechanical properties and water absorption of vinyl ester resin nanocomposites were studied. the nanocomposites were characterized  using  small-angle x-ray  scattering  (saxs),  feld  emission  scanning electron micros...

2008
R. J. Sengwa S. Choudhary S. Sankhla

The dielectric dispersion behaviour of montmorillonite (MMT) clay nanoparticles colloidal suspension in poly(vinyl pyrrolidone)-ethylene glycol (PVP-EG) blends were investigated over the frequency range 20 Hz to 1 MHz at 30°C. The 0, 1, 2, 3, 5 and 10 wt% MMT clay concentration of the weight of total solute (MMT+PVP) were prepared in PVP-EG blends using EG as solvent. The complex relative diele...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی امیرکبیر(پلی تکنیک تهران) - دانشکده مهندسی پلیمر 1386

با توجه به اهمیت علمی بالای نانوکامپوزیت های پلیمر در سال های اخیر، به دلیل بهبود خواص موادی و فرآیندپذیری آنها و با توجه به اینکه تنها نقطه ضعف این سامانه ها کاهش مقاومت ضربه آنها با افزودن نانورس است، هدف این تحقیق تهیه یک سامانه هیبریدی که هم مشخصات نانوکامپوزیت های پیشین را داشته باشد و هم این نقطه ضعف را نداشته باشد قرار دادیم. برای رسیدن به این هدف از یک فاز رابری در کنار یک سازگارکننده ب...

Journal: :Journal of Cleaner Production 2021

Abstract Excess bisphenol A (BPA) is a pollutant of concern in different water sources. In this work, magnetic illite clay-composite material (Fe3O4@illite) was synthesized via the coprecipitation method by loading Fe3O4 nanoparticles (nano-Fe3O4) onto surfaces clay. Results from characterizations showed that nano-Fe3O4 embedded into clay nanosheets and existed on clay, thereby reducing degree ...

Journal: :Advances in geo-energy research 2022

Excessive water production impacts the economics of petroleum reservoir and often leads to their premature shut-in. Production high saline represents a major corrosion for casing, tubing, flow lines, facilities. Polymer solution has been used control plug in high-temperature reservoirs. Most these polymer solutions consist polyacrylamide-based an organic or inorganic cross linker. Polyethylene m...

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