THE HAMAKER COEFFICIENT FOR TITANIUM-DIOXIDE (RUTILE) IN LIQUID-MEDIA

被引：22

作者：

BUSCALL, R

机构：

[1] ICI Corporate Colloid Science Group, P.O. Box 11, The Heath, Runcorn

来源：

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 1993年 / 75卷

关键词：

COATINGS; HAMAKER COEFFICIENT; LIQUID MEDIA; OPTICAL DATA; TITANIUM DIOXIDE;

D O I：

10.1016/0927-7757(93)80438-K

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The Hamaker coefficients for rutile across water and dodecane are calculated from optical data. At contact a value of 15.6kT at 298 K (0.064 aJ) is obtained in water; the value for dodecane is rather similar at 14kT. These values are less than one-half of that obtained in vacuo (38kT). The asymmetric case of rutile/water (or dodecane)/polystyrene (or poly(methyl methacrylate) (PMMA)) is also considered (4.6kT for water, 3.1kT for dodecane). The effect of coatings on the Hamaker coefficient of rutile pigments is also discussed.

引用

页码：269 / 272

页数：4

共 8 条

[1]

CRONEMEYER DC, 1952, PHYS REV, V87, P879

[2] THE CALCULATION OF HAMAKER CONSTANTS FROM LIFSHITZ THEORY WITH APPLICATIONS TO WETTING PHENOMENA [J].