Accession Number : AD0264961

Title :   FUNDAMENTAL STUDIES OF THE DISPERSIBILITY OF POWERED MATERIALS

Corporate Author : GENERAL MILLS INC MINNEAPOLIS MINN

Personal Author(s) : NASH,J.H. ; LEITER,G.G. ; JOHNSON,A.P.

Report Date : 30 SEP 1961

Pagination or Media Count : 1

Abstract : A technique is described for studying the manner in which local bulk density of a column of powder compressed in a cylinder varies with distance from the compressing piston. Measurements were made on each of the 3 base powders (saccharin, Carbowax 6000 and Span 60). The effect of humidity on properties of the three base powders was investigated by conducting a series of tests including shear strength, disc-lifting, aerosol decay and electrostatic charge analysis on powder samples. Fourteen different deagglomerant agents were evaluated by measuring their shear strength at a compressive load of 5305 dynes/sq cm. CabO-Sil had the lowest shear strength of all the agents tested. (Author)

Descriptors :   *AEROSOLS, *CARBOHYDRATES, *ETHYLENES, *GLYCOLS, *PARTICLES, *STEARATES, ADDITIVES, DENSITY, DIFFUSION, ELECTROSTATICS, HUMIDITY, MECHANICAL PROPERTIES, ORGANIC COMPOUNDS, POWDERS, PRESSURE, SCATTERING, TEST EQUIPMENT, TEST METHODS, THEORY

Distribution Statement : APPROVED FOR PUBLIC RELEASE