Results 101 to 110 of about 8,471 (229)

Halloysite clay minerals - A review

, 2005
Halloysite clay minerals are ubiquitous in soils and weathered rocks where they occur in a variety of particle shapes and hydration states. Diversity also characterizes their chemical composition, cation exchange capacity and potassium selectivity.
E. Joussein, B. Theng, Churchman, J, Righi, D, Theng, B, D. Righi, Joussein, E, S. Petit, Petit, S., Delvaux, Bruno, J. Churchman, B. Delvaux   +11 more
core   +1 more source

Raman spectroscopy of isotactic polypropylene-halloysite nanocomposites [PDF]

, 2012
Raman spectroscopy investigations on nanocomposites obtained by dispersing halloysite within isotactic polypropylene are reported. A detailed analysis of the modifications of the regularity band associated to the polymeric matrix is presented.
Ibrahim, Elamin E., Lozano, Karen, Chipara, Mircea, Thapa, Ram, Chipara, Dorina M.   +4 more
core   +1 more source

Carbon dioxide sorption on EDTA modified halloysite

E3S Web of Conferences, 2016
In this paper the sorption study of CO2 on EDTA surface modified halloysite was conducted. In the paper chemical modification of halloysite from the Dunino deposit (Poland) and its influence on sorption of CO2 are presented.
Waszczuk Patrycja, Lutynski Marcin, Gonzalez Gonzalez Miguel A., Smolinski Adam, Howaniec Natalia   +4 more
doaj   +1 more source

Sensitivity and clay mineralogy of weathered tephra-derived soil materials in the Tauranga region

, 2009
Soil sensitivity is defined as the ratio of peak to remoulded shear strength. Problem soil materials are those that show large strength losses on disruption, resulting in catastrophic failure, liquefaction and long run-out distances.
Wyatt, Justin Burns
core  

Changes in structure, morphology, porosity, and surface activity of mesoporous halloysite nanotubes under heating

, 2012
The objective of the present study was to investigate changes in the structural, textural, and surface properties of tubular halloysite under heating, which are significant in the applications of halloysite as functional materials but have received scant
Fan, Mingde, Yuan, Peng, Tan, Daoyong, He, Hongping, Annabi-Bergaya, Faiza, Yan, Wenchang, Liu, Dong   +6 more
core   +1 more source

The effect of halloysite modification combined with in situ matrix modifications on the structure and properties of polypropylene/halloysite nanocomposites

eXPRESS Polymer Letters, 2013
The effect of various modifications/intercalations of halloysite and the combination of these modifications with in situ PP matrix modification was investigated with respect to the structure and properties of the polypropylene/halloysite nanocomposites ...
V. Khunova, J. Kristof, I. Kelnar, J. Dybal   +3 more
doaj   +1 more source

Halloysite nanotubes: Prospects in electrorheology

eXPRESS Polymer Letters, 2018
Electrorheological fluids based on polydimethylsiloxane filled with halloysite nanotubes were studied. The filler structure was characterized by TEM, SEM, and X-ray diffraction. When an electric field is applied to suspensions, their rheological behavior
N. M. Kuznetsov, D. Yu. Stolyarova, S. I. Belousov, R. A. Kamyshinsky, A. S. Orekhov, A. L. Vasiliev, S. N. Chvalun   +6 more
doaj   +1 more source

Analysis on Crystal Structure of 7Å-Halloysite

, 2011
Precise crystal structure determination of the Halloysite is extremely challenging because Halloysite naturally occurs as small cylinders and the ideal single crystal sample is unavailable.
Hua Li Zhang, Jia Rui Hao, Chun Jie Yan, Xin Rong Lei, Hong Quan Wang, Guo Qi Xiao, Duo Wang, Xiu Mei Qiu   +7 more
core   +1 more source

Fuel Features of Straw Biomass Valorized with Aluminosilicates

Energies
Straw biomass is a renewable but problematic fuel due to its high alkali and chlorine content, which can cause slagging and corrosion during combustion.
Joanna Wnorowska, Mateusz Tymoszuk, Sylwester Kalisz   +2 more
doaj   +1 more source

THERMODYNAMIC STUDY FOR THE PROTONATION OF HALLOYSITE

, 2016
The Halloysite (Al2Si2O5(OH)4·2H2O) is an abundant and cheap clay and is considered one of the most promising nano structured and naturally occurring clay mineral. Large deposits of this material are present in France, Belgium, China, New Zealand and USA [1,2].
BRETTI, C, CATALDO, Salvatore, GIANGUZZA, Antonio, LANDO, G, LAZZARA, Giuseppe, PETTIGNANO, Alberto, SIRAGUSA, F, SAMMARTANO, S.   +7 more
openaire   +2 more sources