نتایج جستجو برای: modified clay

تعداد نتایج: 271698  

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2015
jie zhange yunyue zhang longgang hu jiangjia zhang gang chen

to enhance solubility and the performance of a plant gum (from south peach tree of china, sp gum) as a drilling fluid additive, we explored the potential of modified sp (msp) gum by modifying it with epichlorohydrin. the modification conditions, such as the mass ratio of  the crosslinking agent, ph and temperature, were optimized and the results show that 56.40 g/100g mass ratio of the crosslin...

Journal: :Journal of Japan Society of Civil Engineers, Ser. A2 (Applied Mechanics (AM)) 2017

2013
Rola Mansa Christian Detellier

Polymer-clay nanocomposites are highly sought-after materials, mainly due to their applicability in a variety of avenues. From the standpoint of the preparation of these nanocomposites, however, organic compatibility with clay and adherence to "green chemistry" concepts and principles can be limiting factors. As such, the objective was to prepare a biopolymer-modified clay nanocomposite using a...

Journal: :journal of petroleum science and technology 2015
mohammadreza bagherzadeh mahdi ghasemi

the corrosion protection of mild steel by a newly developed epoxy-based coating system containing inherently conducting nanopolyaniline-clay as a nanoadditive has been studied. polyaniline-clay anticorrosion nanoadditive (pcna) was obtained by the direct mixing method of nanopolyaniline (0.03 wt.%) and organo-modified clay (3 wt.%) at atmospheric pressure, and xrd technique was used to study d-...

2004
Qunhui Sun Yulin Deng Zhong Lin Wang

Polymer-nanoclay composite materials have attracted considerable interest among materials scientists recently because of the pioneering work carried out by a research group in the Toyota Central Research Laboratories. The group applied a nylon-montmorillonite clay nanocomposite as an under-the-hood structural part in the engine compartment of an automobile with significantly improved tensile st...

Journal: :Applied sciences 2023

Natural clay mineral and its modifier called modified have been used in many environmental applications for a number of years. However, they are not capable enough to achieve higher conversion rate so-called ecological sustainability. This can be due lack understanding the selectivity or compatibility between pollutants. Recently, development implementation green principles into practice become...

2017
Leslie Valdés Irela Pérez Louis Charles de Ménorval Ernesto Altshuler Jon Otto Fossum Aramis Rivera

The sodium-modified form of fluorohectorite nanoclay (NaFh) is introduced as a potential drug carrier, demonstrating its ability for the controlled release of the broad-spectrum antibiotic Ciprofloxacin through in vitro tests. The new clay-drug composite is designed to target the local infections in the large intestine, where it delivers most of the incorporated drug thanks to its pH-sensitive ...

2011
Roman E. Popil

Application of a delaminated kaolin clay base coat onto linerboard provides a barrier coating for a subsequently applied polymer top coat with potential advantages of increased paper stiffness, improved water resistance at reduced polymer overcoat. Motivated by coating material cost reduction, feasibility of the technique is demonstrated by applying a delaminated clay coating online followed by...

2015
Bhawna Vyas Anil Kumar Singh Swaranjit Singh Cameotra

Maneb is a broad spectrum fungicide, often reported as a carcinogenic, teratogenic and neurodegenerative agent. Thus, the occurrence of maneb at non-targeted sites is a cause of concern. The present study investigates adsorption– desorption behaviour of maneb in the agricultural soils to know its fate, mobility and availability in the soil. The sorption study was carried out by batch equilibrat...

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