Flow electrification in nonaqueous colloidal suspensions, studied with video microscopy

Langmuir

Volumn 20, Issue 20, 2004, Pages 8460-8467

  Tolpekin, V A ^a   Van Den Ende, D ^a   Duits, M H G ^a   Mellema, J ^a  

^a UNIVERSITY OF TWENTE   (Netherlands)

Author keywords

[No Author keywords available]

Indexed keywords

ELECTRIC FIELD EFFECTS; GLASS; HYDROPHOBICITY; PARTICLES (PARTICULATE MATTER); SILICA; SUSPENSIONS (FLUIDS);

BINARY SUSPENSIONS; COLLOIDAL STABILITY; FLOW ELECTRIFICATION; VIDEO MICROSCOPY;

COLLOIDS;

COLLOIDS; DISPERSIONS; ELECTRIC FIELDS; GLASS; PARTICLES; SILICA; WATER REPELLENCE;

EID: 5444238540     PISSN: 07437463     EISSN: None     Source Type: Journal    
DOI: 10.1021/la0496587     Document Type: Article

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17. 6 found at this stage for their stearylated silica particles in chloroform a reduced sedimentation rate and the formation of colloidal crystals, which were attributed to electrical charge on the particles' surfaces. For our particles we did not observe such behavior during the particle synthesis. However, exposing the particles to prolonged flow did have a strong effect on our particles (see text).