ISSN:
1435-1536
Keywords:
AFM
;
Force-distance measurements
;
BaTiO3
;
diblockcopolymer
;
colloidal stabilization
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
,
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Abstract To further elucidate the changes in interparticle forces caused by polymers in ceramic slurries an aqueous barium titanate system was investigated using an atomic force microscope (AFM). Spherical barium titanate particles were sintered and then glued to an AFM-cantilever. A polished and cleaned barium titanate sintered body surface was used for the opposite site. Surfaceforce vs. distance curves were measured in situ in aqueous media. The measurements show a change in surface force vs. distance curves depending on the type of polymer adsorbed on the surface from the solution. A comparison of blockcopolymers with poly electrolytes gives that the colloidal interactions of the adsorbed block-copolymers are almost independent of pH whereas the interactions for the homopolymer are strongly influenced.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01188919
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