Prediction of zero shear viscosity of poly (vinyl chloride) plastisols

被引：5
|
作者：
Laine, Carole [1 ]
Cassagnau, Philippe [1 ]
机构：
[1] LMPB, CNRS, UMR 5627, F-69622 Villeurbanne, France
来源：
APPLIED RHEOLOGY | 2006年 / 16卷 / 03期
关键词：
PVC plastisols; rheology; particles size distribution; maximum packing fraction;
D O I：
10.1515/arh-2006-0009
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
The rheological behaviour of PVC plastisols composed of a blend of suspension and micro-suspension resins in different proportions was investigated. The present work was mainly focused on the variation of the zero shear viscosity versus the concentration of the extender resin. Hence, the packing fraction Phi(m) was evaluated using the Krieger-Dougherty equation. These experiments confirmed the major influence of particle size distribution concerning the decrease of viscosity for concentrated suspensions. In addition, a model based on the porosity model developed by Ouchiyama et al. (Ouchiyama N, Tanaka T: Porosity estimation for random packings of spherical particle", Ind. Eng. Chem. Funclarn. 23 (1984) 490-493) to predict the packing fraction in the case of multimodal lattices was successfully applied to our PVC plastisols formulations.
引用
收藏
页码：136 / 144
页数：9
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