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Magnetic alignment of nontronite dispersions
The time dependent alignment of exfoliated nontronite dispersions subjected to moderate magnetic field strengths (B. <. 0.8. T) is investigated. The chemical and physical properties of nontronite are thoroughly characterised as well as the phase behaviour of its aqueous dispersions at concentrations between 0.2 and 0.7. vol.%. The degree of nontronite alignment is associated with a birefringent light glow which increases with magnetic field strength, time and clay mineral concentration. Theoretical modelling indicates that the experimentally determined alignment kinetics have a characteristic timescale best described by a probability distribution. These findings are of importance for designing the optical, mechanical and barrier properties of clay polymer nanocomposites.
Magnetic alignment of nontronite dispersions
The time dependent alignment of exfoliated nontronite dispersions subjected to moderate magnetic field strengths (B. <. 0.8. T) is investigated. The chemical and physical properties of nontronite are thoroughly characterised as well as the phase behaviour of its aqueous dispersions at concentrations between 0.2 and 0.7. vol.%. The degree of nontronite alignment is associated with a birefringent light glow which increases with magnetic field strength, time and clay mineral concentration. Theoretical modelling indicates that the experimentally determined alignment kinetics have a characteristic timescale best described by a probability distribution. These findings are of importance for designing the optical, mechanical and barrier properties of clay polymer nanocomposites.
Magnetic alignment of nontronite dispersions
MacGregor-Ramiasa, M (author) / Abrahamsson, Christoffer / Röding, M / Nydén, M
Applied clay science ; 116-117
2015
Article (Journal)
English
Isothermal and nonisothermal gravimetry of nontronite dehydroxylation
| Springer Verlag | 1989
| British Library Online Contents | 2012