Development of a model colloidal system for rheology simulation.

Schunk, Peter Randall ; Tallant, David Robert ; Piech, Martin (United Technologies Research Center, East Hartford, CT) ; Bell, Nelson Simmons ; Frischknecht, Amalie Lucile

关键词: PARTICLES;    COLLOIDS;    RHEOLOGY;    SIMULATION;    SOLVENTS;    SYNTHESIS Colloids-Mathematical models.;    Rheology-Measurement.;   

DOI  :  10.2172/943860
RP-ID  :  SAND2008-7045
PID  :  OSTI ID: 943860
Others  :  TRN: US200902%%513

学科分类：化学（综合）

美国|英语

来源: SciTech Connect

【 摘 要 】

The objective of the experimental effort is to provide a model particle system that will enable modeling of the macroscopic rheology from the interfacial and environmental structure of the particles and solvent or melt as functions of applied shear and volume fraction of the solid particles. This chapter describes the choice of the model particle system, methods for synthesis and characterization, and results from characterization of colloidal dispersion, particle film formation, and the shear and oscillatory rheology in the system. Surface characterization of the grafted PDMS interface, dispersion characterization of the colloids, and rheological characterization of the dispersions as a function of volume fraction were conducted.