Results 231 to 240 of about 41,223 (279)

Montmorillonite and vanadia—montmorillonite catalysts for aniline alkylation

Journal of Molecular Catalysis, 1994
Abstract An efficient aniline alkylating property of montmorillonite and vanadia-montmorillonite is discussed in the light of acidity.
Sankarasubbier Narayanan, Kiranmayi Deshpande, Boppana P. Prasad   +2 more
openaire   +1 more source

The surface energy of montmorillonite

Journal of Colloid and Interface Science, 2003
By combining the relation that describes pair interaction in binary mixtures with the Young equation, a formula is obtained for calculating the surface energy of montmorillonite as a function of the surface pressure, the surface tension of water, and the liquid/solid contact angle.
A K, Helmy, E A, Ferreiro, S G, de Bussetti   +2 more
openaire   +2 more sources

ACID ACTIVATION OF MONTMORILLONITE

Canadian Journal of Chemistry, 1960
A Pembina montmorillonite clay has been activated with sulphuric acid at various dosages by the conventional wet process and by the new "dry" process. The products are compared with respect to the fractions of the metal ion components remaining after leaching, the hydrated silica content, the bleaching capacity, and the B.E.T.
Heyding, R. D., Ironside, R., Norris, A., Prysiazniuk, R. Y.   +3 more
openaire   +2 more sources

MONTMORILLONITE-POLYALCOHOL COMPLEXES

Clays and clay minerals (National Conference on Clays and Clay Minerals), 1960
AbstractSome montmorillonites may be differentiated by complexing them with polyalcohols having a CH2 group that is not connected to an oxygen atom. Montmorillonites with a low layer charge and high valence interlayer cations have larger basal spacings for their complexes than do those with a high layer charge and low valence interlayer cations.
Rodney Tettenhorst, Carl W. Beck, George Brunton   +2 more
openaire   +1 more source

High-Resolution Electron Microscopy of Montmorillonite and Montmorillonite/Epoxy Nanocomposites

The Journal of Physical Chemistry B, 2005
With the use of high-resolution transmission electron microscopy the structure and morphology of montmorillonite (MMT), a material of current interest for use in polymer nanocomposites, was characterized. Using both imaging theory and experiment, the procedures needed to generate lattice images from MMT were established.
Lawrence F, Drummy, Hilmar, Koerner, Karen, Farmer, Ashley, Tan, B L, Farmer, Richard A, Vaia   +5 more
openaire   +2 more sources

The Nucleating Effect of Montmorillonite on Crystallization of PET/Montmorillonite Nanocomposite

Journal of Polymer Research, 2003
Poly(ethylene terephthalate) (PET)/montmorillonite (MMT) nanocomposites were prepared by solution intercalation method. The clay was organo-modified with intercalation agent of cetyltrimetylammonium chloride (CMC). XRD showed that the layers of MMT were intercalated by CMC.
Cheng Fang Ou, Mong Ting Ho, Jia Rung Lin   +2 more
openaire   +1 more source

DIMEPIPERATE ADSORPTION AND HYDROLYSIS ON AL3+-MONTMORILLONITE, FE3+-MONTMORILLONITE, CA2+-MONTMORILLONITE, AND NA+-MONTMORILLONITE

1993
The adsorption of the herbicide dimepiperate S-(alpha,alpha-dimethylbenzyl)-1-piperidinecarbothioate on homoionic Fe3+-, Al3+-, Ca2+-, and Na+-montmorillonite was studied in aqueous medium. The adsorption is described well by the Freundlich equation. The adsorption capacity decreases in the order Fe3+ > Al3+ > Ca2+ > Na+ clay.
PUSINO, Alba, LIU W, GESSA C.
openaire   +1 more source

Effect of silane functionalization of montmorillonite on epoxy/montmorillonite nanocomposite

Polymer Bulletin, 2009
Mechanical and dynamic mechanical properties of various montmorillonite (MMT)/epoxy nanocomposites were investigated. 3-aminopropyltriethoxysilane functionalized MMT was compared with commercial pristine MMT and ammonium salt substituted MMT. Qualitative evidence of silane functionalization was confirmed by FT-IR.
Yoon Young Choi, Se Hyoung Lee, Sung Hun Ryu   +2 more
openaire   +1 more source

The Limited Swelling of Montmorillonite

Journal of Colloid and Interface Science, 1998
The attraction forces responsible for the occurrence of limited swelling of montmorillonite having divalent counterions were evaluated from (a) the electrostatic attraction between the negative charges of one surface and the effective charges of the counterions of the other interlayer surface and (b) van der Waals attraction between the two interlayer ...
openaire   +2 more sources

From used montmorillonite to carbon monolayer–montmorillonite nanocomposites

Applied Clay Science, 2014
Abstract Summary background Montmorillonite (Mt) as a low-cost and high-efficient adsorbent for cationic dyes has a promising application in dye wastewater treatment. However, proper disposal of the used Mt is critical to its application. Objective In this work, the used Mt after the adsorption of crystal violet (CV) was calcined under the ...
Qingze Chen, Runliang Zhu, Weixian Deng, Ying Xu, Jianxi Zhu, Qi Tao, Hongping He   +6 more
openaire   +1 more source