Zobrazeno 1 - 10
of 21
pro vyhledávání: '"E-Jen Teh"'
Autor:
E-Jen Teh, Yee-Kwong Leong
Publikováno v:
Colloids and Surfaces A: Physicochemical and Engineering Aspects. 663:131063
Forces between zinc sulphide surfaces; amplification of the hydrophobic attraction by surface charge
Publikováno v:
Physical Chemistry Chemical Physics. 21:20055-20064
Smooth Zinc Sulphide (ZnS) surfaces were prepared by magnetron sputtering and the interaction forces were measured between them as a function of pH. At the isoelectric point (iep) of pH 7.1 the attractive force was well described by the van der Waals
Publikováno v:
Langmuir. 34:2595-2605
The interactions between colloidal particles and nanoparticles determine solution stability and the structures formed when the particles are unstable to flocculation. Therefore, knowledge of the interparticle interactions is important for understandi
Publikováno v:
Langmuir. 33:1496-1506
The surface forces and yield stress of titanium dioxide were measured in the presence of dicarboxylic acids in order to understand the molecular basis for the observed rheological response. The yield stress was measured using the static vane techniqu
Publikováno v:
Colloid and Polymer Science. 294:1765-1777
Maximum yield stress data showed that low molecular-weight (Mw) (∼7 kDa) poly(methacrylic acid) sodium salt (PMA-Na) additive at low surface coverage displayed significant patch charge attraction in contrast to polyacrylic acid sodium salt (PAA-Na)
Publikováno v:
Powder Technology. 223:110-115
Molecules with a rigid backbone and limited spatial conformation were previously reported to participate in “highly directed bridging”. As such, fumaric acid is hypothesized to have high potential for highly directed bridging. In this study, the
Autor:
Joel Smith, Jeremy Teo, Rong Chen, Janette Widjaja, Andries Fourie, E-Jen Teh, Martin Fahey, Jun-Xian Lee, Yee-Kwong Leong
Publikováno v:
Chemical Engineering Research and Design. 90:658-666
Interparticle forces govern slurry behavior in flow, mixing, sedimentation and thickening. This study evaluates the use of small anionic and cationic additives with pH to control the interparticle forces in kaolin slurry via the yield stress paramete
Publikováno v:
Powder Technology. 198:114-119
The linear relationship between yield stress and the square of the zeta potential based on the yield stress–DLVO force model, was used to determine the zeta potential at the point of transition from flocculated to dispersed state of a range of oxid
Publikováno v:
Langmuir. 26:3067-3076
Adsorbed low molecular weight charged molecules are known to give rise to a range of surface forces that affect the rheological behavior of oxide dispersions. The behavior of dicarboxylic acid bolaform compounds in alumina slurry was investigated to
Publikováno v:
Chemical Engineering Science. 64:3817-3825
Kaolinite clays from two sources were found to display different rheological and electrokinetic behaviour despite having similar mineral composition. This difference is mainly due to the surface chemistry at the edges of the clay particles. Making th