题名: |
Wet solids flow enhancemant |
作者: |
Wildman, D.J.;Foster, N.;Caram, H.S.; |
关键词: |
01 COAL, LIGNITE, AND PEAT;42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES; GRANULAR MATERIALS; SOLIDS FLOW; GLASS; SURFACTANTS; WATER; TENSILE PROPERTIES; EXPERIMENTAL DATA |
摘要: |
WE used glass beads of different sizes as.a model system to study the flow enhancing properties of Octadecyltrichlorosilane (OTS). 0TS provides Si(CH{sub 2}){sub 17}CH{sub 3} groups that bind with the surface hydrox groups to make it hydrophobic. Experimental data showed, indeed, that surface hydrophobicity promotes the flow of wet granular materials. Mixtures of different percentage of silanized/unsilanized particles were prepared for tensile strength measurements. The tensile strength decreased as more silanized particles were added to the samples. The relationship between dimensionless tensile strength and void fraction followed the correlation found by Pierrat (1994). Contact angles were larger for the silanized particles, as compared with unsilanized ones. |
总页数: |
13p |
报告类型: |
科技报告 |