CONTACT-ANGLE MEASUREMENTS WITH SESSILE DROPS AND BUBBLES

被引：52

作者：

DIMITROV, AS

KRALCHEVSKY, PA

NIKOLOV, AD

NOSHI, H

MATSUMOTO, M

机构：

[1] UNIV SOFIA,FAC CHEM,THERMODYNAM & PHYSICO CHEM HYDRODYNAM LAB,BU-1126 SOFIA,BULGARIA

[2] OSAKA DENT UNIV,DEPT PREVENT DENT,HIGASHI KU,OSAKA 540,JAPAN

[3] KYOTO UNIV,INST CHEM RES,UJI,KYOTO 611,JAPAN

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 1991年 / 145卷 / 01期

关键词：

D O I：

10.1016/0021-9797(91)90120-W

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：

In this note a simple and precise method for measurement of contact angles in the range 0°-180° on solid surfaces is proposed. In the case when the three-phase contact line is irregular due to surface roughness and inhomogeneity, the method provides an effective averaged value of the contact angle. The method is based on a numerical solution of the Laplace equation for the interfacial profile. The input parameters used are the liquid-gas surface tension and a pair of the following parameters of the drop (bubble) shape: volume, height, contact radius, and equatorial radius. Depending on the magnitude of the contact angle different pairs of parameters are to be measured for the purpose of best accuracy. © 1991.

引用

页码：279 / 282

页数：4

共 14 条

[1] AUTOMATION OF AXISYMMETRIC DROP SHAPE-ANALYSIS FOR MEASUREMENT OF INTERFACIAL-TENSIONS AND CONTACT ANGLES [J].

CHENG, P ;

LI, D ;

BORUVKA, L ;

ROTENBERG, Y ;

NEUMANN, AW .

COLLOIDS AND SURFACES, 1990, 43 (2-4) :151-167

[2]

Derjaguin B.V., 1984, WETTING FILMS

[3] CONTACT ANGLES OF THIN LIQUID-FILMS - INTERFEROMETRIC DETERMINATION [J].

DIMITROV, AS ;

KRALCHEVSKY, PA ;

NIKOLOV, AD ;

WASAN, DT .

COLLOIDS AND SURFACES, 1990, 47 :299-321

[4]

DUNKANHEWITT WC, 1989, COLLOID SURFACE, V42, P391

[5]

Forsythe GE., 1977, COMPUTER METHODS MAT

[6]

Hartland S, 1976, AXISYMMETRIC FLUID L

[7] A METHOD FOR ESTIMATING INTERFACIAL-TENSIONS AND CONTACT ANGLES FROM SESSILE AND PENDANT DROP SHAPES [J].

HUH, C ;

REED, RL .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1983, 91 (02) :472-484

[8]

Kao R. L., 1988, COLLOID SURFACE, V34, P389

[9] DETERMINATION OF LINE TENSION FROM THE DROP SIZE DEPENDENCE OF CONTACT ANGLES [J].

LI, D ;

NEUMANN, AW .

COLLOIDS AND SURFACES, 1990, 43 (2-4) :195-206

[10]

LYMAN DJ, 1968, T AM SOC ART INT ORG, V14, P250

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