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Effectiveness of commercial antistatic wall coatings.

Authors
Stein-RL; Ryback-WH
Source
J Colloid and Interface Sci 1972 Mar; 38(3):654-655
NIOSHTIC No.
10000141
Abstract
Containers of plexiglas, lucite, polystyrene, and similar polymers have frequently been used as chambers for aerosol studies. These materials, because of their high surface resistivity and polarizability, have large areas of positive and negative surface charge which exist in random distribution over the plastic surface. These charge islands create electric fields within the chamber which interact with charged particles in the aerosol, resulting in high rate of particle loss to the wall. A detailed study of this phenomenon was recently undertaken by the dust control group of the Pittsburgh Mining and Safety Research Center as part of the Bureau of Mines' ongoing program of research to control respirable dust in underground coal mines. A report of this work is in preparation. To examine the effect of this surface electrostatic charge on the wall loss rate, control experiments were conducted using a film of a hydroscopic conducting detergent on the wall. Various commercial antistatic detergents were available for this purpose since they are used industrially to retard dust accumulation. A study of several of these agents was conducted to determine their effectiveness in reducing electrostatic wall loss of aerosol to a polystyrene surface.
CODEN
JCISA5
Publication Date
19720301
Document Type
OP; Journal Article
Fiscal Year
1972
NTIS Accession No.
NTIS Price
Identifying No.
OP 104-72
Issue of Publication
3
ISSN
0021-9797
NIOSH Division
PRC
Source Name
Journal of Colloid and Interface Science
State
PA
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