CPL - Chalmers Publication Library
| Utbildning | Forskning | Styrkeområden | Om Chalmers | In English In English Ej inloggad.

Adsorption of sodium dodecyl sulfate and sodium dodecyl phosphate at the surface of aluminium oxide studied with AFM

Philip Karlsson (Institutionen för kemi- och bioteknik, Teknisk ytkemi) ; M. W. Anderson ; Anders Palmqvist (Institutionen för kemi- och bioteknik, Teknisk ytkemi)
Corrosion Science (0010-938X). Vol. 52 (2010), 4, p. 1103-1105.
[Artikel, refereegranskad vetenskaplig]

Within the framework of water-based aluminium pigments the difference in inhibition offered by the adsorption of sodium dodecyl sulfate (SOS) and sodium dodecyl phosphate (SDP) was studied by atomic force microscopy (AFM). While SOS did not show strong adsorption on aluminium oxide, SDP adsorbed strongly forming bilayers which patches did not change noteworthy over several hours of SDP exposure, indicating irreversible binding to the surface. Quantization of the surface coverage of the adsorbed SDP revealed that only 63% coverage was achieved, which shows surprisingly that a complete coverage is not necessary to inhibit oxidation of aluminium pigment particles.

Nyckelord: Aluminium, AFM, Paint coatings, Interfaces, ATOMIC-FORCE MICROSCOPY, INHIBITION, XPS



Denna post skapades 2010-05-05.
CPL Pubid: 121248

 

Läs direkt!


Länk till annan sajt (kan kräva inloggning)


Institutioner (Chalmers)

Institutionen för kemi- och bioteknik, Teknisk ytkemi (2005-2014)

Ämnesområden

Kemiteknik

Chalmers infrastruktur