- Conference date: 3–8 August 2008
- Location: Monterey (California)
We studied particle weight fraction, temperature and molecular weight dependences of ER effect for poly(ethylene glycol) suspension. For weight fraction dependence, yield stress was nearly constant from 20 to 30 wt% suspension but became low at 10 and 15 wt%. Yield stress became higher as temperature increased and the temperature dependence was strong as particle composition increased. From the study of molecular weight dependence, we observed the weakening yield stress of high molecular weight PEG. We also measured ER of two molecular weight PEG blend suspension and observed similar yield stress to neat PEG which have similar number‐average molecular weight.
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