DEPOSITION OF POLYSTYRENE PARTICLES IN A PARALLEL PLATE FLOW CELL .2. PAIR DISTRIBUTION-FUNCTIONS BETWEEN DEPOSITED PARTICLES

被引：58

作者：

SJOLLEMA, J

BUSSCHER, HJ

机构：

[1] Laboratory for Materia Technica, University of Groningen, 9713 AV Groningen

来源：

COLLOIDS AND SURFACES | 1990年 / 47卷

关键词：

D O I：

10.1016/0166-6622(90)80082-F

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：

Deposition of polystyrene particles is influenced by blocking effects and particle and collector heterogeneity. In order to study the influence of both effects, the distribution of polystyrene particles deposited on flat polymethylmethacrylate (PMMA), fluorethylenepropylene copolymers (FEP) and mica collector surfaces in a parallel plate flow cell has been investigated and was correlated with computer-simulated random distribution patterns. Radial pair distribution functions between deposited particles reveal that the deposition of particles near already deposited particles is unfavourable due to a blocking of up to 3 particle diameters. Furthermore preferential angular distributions were observed with respect to the flow direction. Finally, both radial and angular pair distribution functions suggest that the immobilization of deposited particles is more effective on PMMA than on FEP or mica. © 1990.

引用

页码：337 / 352

页数：16

共 14 条

[1] DEPOSITION OF PARTICLES UNDER EXTERNAL FORCES IN LAMINAR-FLOW THROUGH PARALLEL-PLATE AND CYLINDRICAL CHANNELS [J].