Journal article
Flow properties at elevated temperatures and clarity of HSPAN gel-water dispersions
Journal of applied polymer science, Vol.57(2), pp.121-132
07/11/1995
DOI: 10.1002/app.1995.070570201
Abstract
Dispersions of hydrolyzed-starch–polyacrylonitrile (HSPAN) gel and distilled water underwent permanent diminuntion of room-temperature viscosity after maintenance above a threshold temperature of 75°C for periods of several weeks. Below the threshold temperature, viscosity measured at room temperature was unaffected. Above the threshold temperature, the final room-temperature viscosity exponentially varied as the inverse absolute temperature, and the viscosity decreased with increasing temperature. The HSPAN gel–distilled water dispersions exhibited both yield stress and velocity slip at a solid boundary, but the latter was not present at low shearing stresses. The former inhibited natural convection in a vertical slot with an imposed horizontal temperature difference. Clarity of the dispersions was demonstrated by a character-visibility test. Deaerating the distilled water by boiling before mixing with HSPAN gel improved the clarity of the resulting dispersion by eliminating the formation of bubbles at elevated temperature
Details
- Title: Subtitle
- Flow properties at elevated temperatures and clarity of HSPAN gel-water dispersions
- Creators
- Richard A. Hardin - University of KansasLouis C. Burmeister - University of Kansas
- Resource Type
- Journal article
- Publication Details
- Journal of applied polymer science, Vol.57(2), pp.121-132
- Publisher
- Wiley Subscription Services, Inc., A Wiley Company
- DOI
- 10.1002/app.1995.070570201
- ISSN
- 0021-8995
- eISSN
- 1097-4628
- Number of pages
- 12
- Language
- English
- Date published
- 07/11/1995
- Academic Unit
- Mechanical Engineering
- Record Identifier
- 9984637883102771
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