搜索结果: 1-15 共查到“矿床学与矿相学 nature”相关记录26条 . 查询时间(0.296 秒)
The nature of clay-cation association dictates clay behaviour in aqueous suspensions
nature clay-cation association dictates clay behaviour aqueous suspensions
2012/3/30
Dispersive behaviour of soil clays has been explained by soil scientists using hypotheses involving various electrical diffuse double layer forces generated between colloidal clay particles suspended ...
Biodiversity Preliminary Investigation of Nature Reserve Taoyuan Cave
Biological Diversity Ecological Condition Scenic Area Tao Yuan Cave
2011/12/22
Nature reserve is a significant base for humans to understand, use and protect nature. This study has investigated the ecological environment of Taoyuan cave National Nature Reserve. The results show ...
The Mechanical Properties of Modified Attapulgite Reinforced Nature Rubber and Styrene-Butadiene Rubber Nanocomposites
Attapulgite Nano Composite Natural Rubber (NR) Sequencing Batch Reactor (SBR)
2011/11/15
Attapulgite (AT)/natural rubber (NR)/ styrene-butadiene rubber (SBR) nanocomposites have been prepared after attapulgite was modified by different coupling agent. The treatment of AT caused the adhesi...
Preparation and Characterization of Nature Rubber/Attapulgite Composites
Attapulgite Composite Nature Rubber NR/AT
2011/11/15
In this paper, attapulgite(AT)/nature rubber (NR) composites have been prepared through melt blending process. First, different types of attapulgite were prepared.Secend,Fourier infrared spectroscopic...
The nature of diffraction effects from illite and illite-smectite consisting of interstratified trans-vacant and cis-vacant 2:1 layers: A semiquantitative technique for determination of layer-type content
illite illite-smectite interstratified trans-vacant cis-vacant 2:1 layers semiquantitative technique layer-type content
2012/4/6
Previous workhas described the structural and diffraction criteria for distinguishing between tv-1M, cv-lM, and m-lM illite varieties, wheretv-1M illite corresponds to a structure withtrans vacant(tv)...
The {l014} surfaces ofoptical quality calcite (Iceland spar) wereexamined in air using scanning force microscopy (SFM) immediately after cleavage and during the hours and days that followed. In the ab...
Nature of Structural Disorder in Natural Kaolinites: A New Model Based on Computer Simulation of Powder Diffraction Data and Electrostatic Energy Calculation
Energy calculation Kaolinite Layer disorder XRPD simulation
2011/12/28
A new model for the description of the structural disorder in natural kaolinite materials is proposed, based on the stacking of two 1:1 layers and their enantiomorphs, and encompassing previously prop...
Infrared Spectroscopic Analyses on the Nature of Water in Montmorillonite
Montmorillonite Spectroscopy Water
2011/12/29
Interlayer cations and moisture content greatly influence the molecular vibrations of H2O in montmorillonite as shown through reflectance spectroscopy in the infrared. The absorptions due to H2O have ...
Nature and Stability of Radiation-Induced Defects in Natural Kaolinites: New Results and a Reappraisal of Published Works
EPR Kaolinite Radiation induced defects RID
2011/12/29
A new appraisal of radiation-induced defects (RID) in natural kaolinite, i.e., positive trapped holes on oxygen atoms, has been undertaken using Q-band EPR spectra, recorded at 93 K, of irradiated ann...
Study of the Nature of Acid Sites of Montmorillonites Pillared with Aluminium and Oligosilsesquioxane Complex Cations. 1. Bronsted Acidity
Bronsted acidity Diffuse reflectance IR-spectroseopy Montmorillonites Pillared clays
2011/12/29
Two samples, obtained by pillaring a Wyoming montmorillonite with hydroxy aluminium and oligosilsesquioxane cations, were studied by stepwise thermal desorption of ammonia and by highly sensitive diff...
The Nature of Polynuclear OH-Al Complexes in Laboratory-Hydrolyzed and Commercial Hydroxyaluminum Solutions
Al13 complexes Aluminum chlorohydrate Polyaluminum chloride Polynuclear OH-Al complexes
2011/12/29
Laboratory-hydrolyzed and commercial OH-Al solutions were characterized using kinetics of Al-ferron color development, kinetics of structural OH neutralization with H+, 27Al NMR spectroscopy, and sulf...
Nature of the Illitic Phase Associated with Randomly Interstratified Smectite/Illite in Soils
Chemical analysis Elementary particle High-resolution transmission electron microscopy Illite Interstratified Smectite Smectite/illite
2011/12/29
A dispersion-centrifugation-decantation procedure was used to isolate various particle size fractions from a sample of clay (<2 祄 fraction) separated by sedimentation from the Ap horizon of a Webster ...
Effect of Tartaric Acid and pH on the Nature and Physicochemical Properties of Short-range Ordered Aluminum Precipitation Products
Aggregation Aluminum hydroxides Crystallization Porosity Precipitation Surface area Tartaric acid
2011/12/31
The influence of tartaric acid and pH on chemical composition, morphology, surface area, and porosity of short-range ordered Al precipitation products was studied. Samples were prepared (1) at pH 8.0 ...
Hydrophobic Nature of Organo-Clays as a Lewis Acid/Base Phenomenon
Organo-clay Surface tension Lewis acid/base
2011/12/31
The surface thermodynamic properties of a series of n-alkylammonium and quaternary ammonium treated clay films were determined by contact angle measurement of drops of test liquids using the Young equ...
The Nature of Cation-Substitution Sites in Phyllosilicates
Beidellite Cation-substitution site Electrostatic potential Hectorite Montmorillonite Vermiculite
2012/1/5
A fundamental property of electrostatic potentials is their additivity. This study demonstrates that the electrostatic potential of a negatively charged, cation-substituted phyllosilicate layer can be...