Abstract
The formation and collapse of a vapor microcavity (microbubble) in aqueous solutions of polyacrylamide with a molecular mass of 0.5–11 million and concentration of 0–6% is studied experimentally. A microbubble less than 100 μm in size is formed as a result of local superheating of the liquid by a microheater. Using stroboscopic visualization, the microbubble evolution is investigated in detail. At high polymer concentrations and low molecular masses, a slowing of bubble collapse is noted. On the range of parameters considered, no radical change in microbubble dynamics due to the action of polymeric additives was observed.
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Bazilevskii, A.V., Meier, D.D. & Rozhkov, A.N. Dynamics of a Spherical Microcavity in a Polymeric Liquid. Fluid Dynamics 38, 351–362 (2003). https://doi.org/10.1023/A:1025171704005
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DOI: https://doi.org/10.1023/A:1025171704005