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Lateral and Normal Forces in Polymer‐Mediated Interaction of Alumina Surfaces
Author(s) -
Yilmaz Hüseyin,
Sato Kimiyasu,
Sato Katsuya,
Hotta Yuji,
Watari Koji
Publication year - 2011
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1551-2916.2011.04686.x
Subject(s) - polymer , adsorption , colloid , atomic force microscopy , surface force , sapphire , bridging (networking) , chemical engineering , chemistry , surface forces apparatus , acrylic acid , materials science , polymer chemistry , nanotechnology , composite material , optics , copolymer , computer network , laser , physics , engineering , computer science , mechanics
Polymer‐mediated interaction forces between an α‐alumina particle and c‐sapphire surfaces in methylcellulose solutions were measured by the atomic force microscope colloid probe technique. The effect of water soluble methylcellulose on normal and lateral surface forces was probed to understand the binding action of methylcellulose polymers. Methylcellulose bridgings up to ~300 nm in length have been measured. However, pretreatment of surfaces with NH 4 + salt of poly(acrylic acid) resulted in fewer bridging events, probably due to preferential adsorption. The presence of methylcellulose bridging in friction loops was also measured in the form of superimposed spikes.