Diffusion Rates of Plasticizers in Polyvinyl Chloride Compounds
IV. Relations between Diffusion Coefficients of Plasticizers and Viscosities measured by Vibrating Reed Method
1958 Volume 15 Issue 155 Pages 143-148
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1958 Volume 15 Issue 155 Pages 143-148
The diffusion coefficients ( D ) of plasticizers in polyvinyl Chloride compounds and viscosities of the compounds measured by vibrating reed method were reported in the previous papers, for the plasticizers, TCP, DOP and DOA, over the range of 20-120°C, and 20-60 percent plasticizer, and in this paper, the relation between them were examined. Linearity could be found betweon log D and logη50 at 20-50°C. From Eyring's equation on diffusion and viscosity, and Flory·Huggins'equati on of activity, the μ-constants could be obtained from the dependence of D·γ50 on ν1, where ν1 is volume fraction of plasticizer.
