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Preparation and properties of mesoporous silica/bismaleimide/diallylbisphenol composites with improved thermal stability, mechanical and dielectric properties
thermosetting resins bismaleimide meosoporous silica dielectric properties structure-property
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2011/12/14
New composites with improved thermal stability, mechanical and dielectric properties were developed, which consist of 2,2!-diallylbisphenol A (DBA)/4,4!-bismaleimidodiphenylmethane (BDM) resin and a n...
Modeling Dielectric-constant Values of Geologic Materials:An Aid to Ground-penetrating Radar Data Collection and Interpretation
Dielectric-constant Values Geologic Materials Ground-penetrating Radar
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2009/10/20
Ground-penetrating radar (GPR) is a near-surface geophysical imaging technique used for non-intrusive subsurface geologic and engineering investigations. Dielectric constant is a critical parameter fo...
Dielectric-Relaxation Spectroscopy of Kaolinite, Montmorillonite, Allophane, and Imogolite under Moist Conditions
Allophane Bound Water Complex Permittivity Dielectric-Relaxation Spectroscopy Imogolite Interfacial Polarization Kaolinite Montmorillonite Time-Domain Reflectometry
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2011/12/2
Abstract: The dielectric behavior of kaolinite, montmorillonite, allophane, and imogolite samples adjusted to a water potential of 33 kPa was examined using a time-domain reflectometry method over a w...
Effect of the Dielectric Constant on the Double Layer on Clays
Dielectric constant Double layer potential Gouy model Montmorillonite Water
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2012/2/2
Electric potentials as a function of distance were calculated for a model of the double layer on clays in which a surface zone a few water molecules thick has a low dielectric constant. This zone is f...
Dielectric Properties of Montmorillonites Saturated by Bivalent Cations
Montmorillonites Bivalent Cations Dielectric Properties
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2012/2/14
This study deals with the analysis of dielectric measurements made on montmorillonites saturated by bivalent cations. These measurements are performed between −150°C and + 30°C at frequencies ra...
Low Frequency Dielectric Dispersion of Clay-Water-Electrolyte Systems
Low Frequency Dielectric Dispersion Clay-Water-Electrolyte Systems
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2012/2/21
The dielectric properties of saturated kaolinite clay-water-electrolyte systems were determined over the frequency range of 30–105 c/s. Very large dielectric constants are observed at low frequencies....