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Development and characterization of magnetorheological polymer gels
Author(s) -
Wilson Malcolm J.,
Fuchs Alan,
Gordaninejad Faramarz
Publication year - 2002
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/app.10525
Subject(s) - polyurethane , differential scanning calorimetry , rheology , materials science , polymer , diluent , activation energy , polymer chemistry , silicone , magnetorheological fluid , characterization (materials science) , chemical engineering , composite material , polymer science , thermodynamics , chemistry , organic chemistry , nanotechnology , physics , damper , engineering
Abstract Magnetorheological materials have been used in many applications in recent years. To develop new materials, polyurethane and silicone polymer gels were investigated. Rheology is qualitatively controlled for each system by controlling the concentration of reactants and diluents. The resulting polymers have solid, gel, or liquid states, depending on the crosslinking and dilution. The gels were characterized through kinetic analysis. Differential scanning calorimetry (DSC) was used with analysis methods to find the kinetic properties for diluted and undiluted polyurethane systems. Heat of reaction, order of reaction, preexponential constant, and activation energy were obtained from the experimental DSC data. © 2002 Wiley Periodicals, Inc. J Appl Polym Sci 84: 2733–2742, 2002