Abstract
The dissolution characteristics of glycol ether/NaOH solution were compared with NaOH/ urea and PEG/NaOH solutions were reported. With decreasing of the particle size and concentration of the cellulosic micro-fines (CMFs), the dissolution ability of the CMFs was drastically increased in all solvents. Compared with the PEG/NaOH solution, the glycol ether/NaOH solution had been found to exhibit a similar or higher regenerated cellulose degree of polymerization as well as solubility. The FT-IR analysis also identified the differences between natural cellulose and regenerated cellulose. The shortening of particle length in the filter paper non-dissolved part was observed through optical microscopy, and for CMFs, swelling were observed in most particles. These results confirmed that the properties of raw materials particle size and degree of polymerization had a significant effect on dissolution and the glycol ether/NaOH solutions was a new solvent.
| Original language | English |
|---|---|
| Pages (from-to) | 19-27 |
| Number of pages | 9 |
| Journal | Palpu Chongi Gisul/Journal of Korea Technical Association of the Pulp and Paper Industry |
| Volume | 51 |
| Issue number | 1 |
| DOIs | |
| State | Published - 1 Jan 2019 |
Keywords
- Cellulose micro-fines (cmfs)
- Dissolution
- Microwave organosolv
- Naoh aqueous solution