نتایج جستجو برای: modified clay

تعداد نتایج: 271698  

2006
S. Schleidt H. W. Spiess G. Jeschke

Polymer-clay nanocomposites exhibit much improved mechanical, physical, and chemical properties compared to the pure polymer. The interaction of polymer and organically modified silicates is mainly influenced by the surfactant layer in the system. To investigate the structure and dynamics of this surfactant layer, various electron paramagnetic spectroscopy (EPR) techniques were applied. Continu...

Journal: :Construction materials 2021

The negative environmental impacts of Portland cement as a binder in the construction industry have created growing impetus to develop sustainable alternative binders. Various types clay been considered potential replacements. impact clays replacement depends on dosage and treatment methods. This paper presents comprehensive review determine effects different fresh hardened properties concrete ...

2018
Myna Vajha Vinayak Ramkumar Bhagyashree Puranik Ganesh R. Kini Elita Lobo Birenjith Sasidharan P. Vijay Kumar Alexandar Barg Min Ye Srinivasan Narayanamurthy Syed Hussain Siddhartha Nandi

With increase in scale, the number of node failures in a data center increases sharply. To ensure availability of data, failure-tolerance schemes such as ReedSolomon (RS) or more generally, Maximum Distance Separable (MDS) erasure codes are used. However, while MDS codes offer minimum storage overhead for a given amount of failure tolerance, they do not meet other practical needs of today’s dat...

2008
Anirban Ganguly Anil K Bhowmick

Sulfonated styrene-(ethylene-butylene)-styrene triblock copolymer (SSEBS) was synthesized by reaction of acetyl sulfate with SEBS. SSESB-clay nanocomposites were then prepared from hydrophilic Na-montmorillonite (MT) and organically (quaternary amine) modified hydrophobic nanoclay (OMT) at very low loading. SEBS did not show improvement in properties with MT-based nanocomposites. On sulfonation...

2015
Andreas Seger Marius N. Müller Tae Gyu Park Gustaaf Hallegraeff

Clay minerals have previously been used to mitigate algal blooms because of their ability to flocculate algal cells or remove nutrients, but also offer considerable potential to remove ichthyotoxins. When a barramundi farm in tropical Australia suffered substantial fish mortalities due to a bloom of the ichthyotoxic haptophyte Prymnesium parvum, the farm manager decided to manipulate pond water...

2011
CAGATAY ALTINKOK TAMER UYAR MEHMET ATILLA TASDELEN YUSUF YAGCI

INTRODUCTION Polymer/clay nanocomposites, in which nanosized silicate plates of clay are uniformly dispersed in the polymer matrix, provide enhanced mechanical and thermal properties compared to conventional composites. Not all polymer and clay combinations will form nanocomposites: the compatibility and interfacial properties between polymer matrix and clay layers significantly influence the e...

2014
Antonio Sánchez-Fernández Laura Peña-Parás Román Vidaltamayo Rodrigo Cué-Sampedro Ana Mendoza-Martínez Viviana C. Zomosa-Signoret Ana M. Rivas-Estilla Paulina Riojas

Halloysite is an aluminosilicate clay that has been widely used for controlled drug delivery, immobilization of enzymes, and for the capture of circulating tumor cells (CTCs). Surface modification of halloysite by organosilanes has been explored to improve their properties. In this study halloysite clay nanotubes (HNTs) were functionalized by two different organosilanes: Trimethoxy(propyl)silan...

2005
S. Hayes R. Taylor A. Paterson

Forensic facial approximation involves building a likeness of the head and face on the skull of an unidentified individual, with the aim that public broadcast of the likeness will trigger recognition in those who knew the person in life. This paper presents an overview of the collaborative practice between Ronn Taylor (Forensic Sculptor to the Victorian Institute of Forensic Medicine) and Detec...

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-...

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