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http://nopr.niscpr.res.in/handle/123456789/30976| Title: | Dilute solution behaviour of partially hydrolysed polyacrylamide |
| Authors: | Borthakur, A Sarmah, A Rahman, M Subrahmanyam, B |
| Issue Date: | Jan-1996 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | Flow behaviour of partially hydrolysed polyacrylamide (PHPA) is studied in aqueous and in ethylene glycol-water, dimethyl formamide-water binary solvents At low concentrations (100-1000 ppm) reduced viscosity (ήsp/c) increases with decrease of concentration of the polymer. It obeys Fuoss plot, i.e,. c/ήsp linearly depends on the square root of concentratijon (√C). However, In presence of Na+ reduced viscosity, ήsp/c) of PHPA polymer is a linear function of concentration. The solution viscosity exhibits a substantial shear thinning effect in all the three solvents. Shear thinning behaviour diminishes on increase of salt concentration producing Newtonia behaviour (1-40 s-1). Dilute solution of PHPA degrades when stored for a prolonged period. This aging behaviour can be prevented by using 300 ppm of antimicrobial agent such as monoethanolamine, diethanolamine and triethanolamine. |
| Page(s): | 23-26 |
| ISSN: | 0975-0991 (Online); 0971-457X (Print) |
| Appears in Collections: | IJCT Vol.03(1) [January 1996] |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IJCT 3(1) 23-26.pdf | 299.81 kB | Adobe PDF | View/Open |
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