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Electrorheological properties of chitin suspensions
Author(s) -
Wu Shuizhu,
Shen Jiarui
Publication year - 1996
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/(sici)1097-4628(19960620)60:12<2159::aid-app13>3.0.co;2-2
Subject(s) - electrorheological fluid , silicone oil , materials science , rheology , suspension (topology) , electric field , composite material , particle size , particle (ecology) , chemical engineering , physics , oceanography , mathematics , quantum mechanics , homotopy , pure mathematics , engineering , geology
Electrorheological suspensions are suspensins of solid particles whose rheological behavior can be strongly modified by the application of an electric field, In this article, the electrorheological properties of suspensions containing chitin particles (and its derivative— carboxylmethyl chitosan particles) in silicone oil are reported for a range of suspension weight concentrations, applied field strengths, shear rates, etc. In these suspensions, glycerin was used as an activator. The adsorbed amount of glycerin, one of the electrorheological parameters, was also studied experimentally. The ER effect of the chitin suspension reaches the maximum at about 11% of weight concentration. The dependence of the experimentally determined dynamic yield stress on particle concentration and field strength is found to be similar to that reported for other systems. The dynamic yield stress is found to increase with the particle concentration and the applied electric field strength. © 1996 John Wiley & Sons, Inc.