Concept

Bentonite

Related publications (50)

Equilibrium desorption isotherms of water, ethanol, ethyl acetate and toluene on a sodium smectite clay

John Christopher Plummer, Pascal Clausen

Desorption isotherms for water, ethanol, ethyl acetate and toluene from a sodium smectite clay have been determined by both dynamic vapor sorption (DVS) measurements and Knudsen thermogravimetry (KTGA), at the exception of toluene that was measured only by ...

Springer Netherlands2009

Natural cement and monumental restoration

Christophe Gosselin

Natural cement, called "Roman" cement, was invented at the end of the 19th century and played an important role in the development of civil engineering works until the 1860s. More surprisingly, it was also used to restore historic buildings, such as gothic ...

Springer Netherlands2009

Natural cement and stone restoration of Bourges Cathedral

Christophe Gosselin

2009

Deformation and fracture in isotactic polypropylene glass mat thermoplastic composites modified with montmorillonite clay

John Christopher Plummer, Sara Dalle Vacche, Chrystèle Houphouet-Boigny Favre

Satisfactory impregnation of glass fiber mats may be obtained with isotactic polypropylene/montmorillonite (MMT) nanocomposites under conditions comparable with industrial conditions. However, it is demonstrated here that the high melt viscosity of the nan ...

2008

Impact of small amounts of swelling clays on the physical properties of debris-flow-like granular materials. Implications for the study of alpine debris flow

Paul Bowen, Pascal Boivin, Eric Bardou

The effect of the small fraction of clays on the rheological behaviour of alpine debris flow is poorly understood. This is partly due to the complexity of the debris flow mineralogy and the broad particle size distribution. This study has investigated this ...

2007

Hyperbranched Polymer/Montmorillonite Clay Nanocomposites

Yves Leterrier, John Christopher Plummer, Marlene Rodlert

Two to four pseudo-generation aliphatic hyperbranched polymers (HBPs) with OH end-groups have been solution processed with various types of montmorillonite (MMT) layered alumino-silicate clays, and carefully dried to produce solid HBP/MMT nanocomposites. ...

2004

Rheological behavior of hyperbranched polymer/montmorillonite clay nanocomposites

Yves Leterrier, John Christopher Plummer, Marlene Rodlert

The equilibrium rheological properties of a range of isotropic exfoliated and intercalated hyperbranched polymer (HBP)/montmorillonite (MMT) clay nanocomposites have been investigated using low strain oscillating shear measurements at temperatures above th ...

2004

Polymer flocculents and preparation thereof

David Hunkeler

A high molecular weight water soluble graft copolymer having improved flocculating properties is provided. The backbone chain is a heteropolysaccharide comprising amino groups, in particular chitosan, grafted with one or more monoethylenically unsaturated ...

2002

Alkali-silica reaction in a monolithic opal

Karen Scrivener

The alkali-silica reaction in opal was studied in the SEM with backscattered electrons, combined with quantitative image analysis, and also in an electron microprobe. A system of cracks was observed in the bands of gel in the opal, ahead of narrow fingers ...

1994

Insights into the Nature of the Active Sites of Tin‐Montmorillonite for the Synthesis of Polyoxymethylene Dimethyl Ethers (OME)

Jeremy Luterbacher, Oliver Kröcher, Florent Emmanuel Héroguel, Alimohammad Bahmanpour, Christophe Jean Baranowski

In this study, we report that intercalation of tin into montmorillonite clay (Sn‐MMT) boosts catalytic activity for the synthesis of polyoxymethylene dimethyl ethers, a promising diesel fuel additive. This increase in activity is attributed to the formatio ...

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