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Viscosity model of high-viscosity dispersing system

Viscosity model of high-viscosity dispersing system
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摘要 High-viscosity dispersing system is formed by dispersing the solid particles in the high-viscosity continuous medium.It is very easy to form the three-dimensional network structure for solid particles in the system and the rheology behavior becomes complicated.The apparent viscosity of this dispersing system always has the connection with the volume ratio and the shear rate.In order to discuss the rheology behavior and put up the viscosity model,the suspension of silicon dioxide and silicon oil were prepared.Through testing the viscosity,the solid concentration and the shear rate,the effects of the ratio and the shear rate on viscosity was analyzed,the model of the high-viscosity dispersing system was designed and the model with the printing ink were validated.The experiment results show that the model is applicable to the high-viscosity dispersing systems. High-viscosity dispersing system is formed by dispersing the solid particles in the high-viscosity continuous medium. It is very easy to form the three-dimensional network structure for solid particles in the system and the rheology behavior becomes complicated. The apparent viscosity of this dispersing system always has the connection with the volume ratio and the shear rate. In order to discuss the rheology behavior and put up the viscosity model, the suspension of silicon dioxide and silicon oil were prepared. Through testing the viscosity, the solid concentration and the shear rate, the effects of the ratio and the shear rate on viscosity was analyzed, the model of the high-viscosity dispersing system was designed and the model with the printing ink were validated. The experiment results show that the model is applicable to the high-viscosity dispersing systems.
出处 《Journal of Central South University》 SCIE EI CAS 2008年第S1期163-166,共4页 中南大学学报(英文版)
关键词 DISPERSING system NETWORK STRUCTURE VISCOSITY model RHEOLOGY dispersing system network structure viscosity model rheology
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参考文献5

  • 1The Society of Rheology Japan.Seminar rheology[]..1992
  • 2HIRAI E.Rheology for chemical engineer[]..1977
  • 3JIANG Ti-qian.Rheology of chemical engineering[]..2004
  • 4OTSUBO Y,WATANABE K.Rheological behavior of silica suspensions flocculated by bridging[].Journal of Non Newtonian Fluid Mechanics.1987
  • 5Yasufumi Otsubo and Koichiro Watanabe.Application of percolation theory to the rheology of silica suspensions flocculated by bridging[].Journal of Colloid and Interface Science.1989

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