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No 1 / 1
Size reversal in alkaline papermaking
| Date: | 1.8.1993-1.3.1996 |
| Code: | 17722 |
| Department: | Åbo Akademi University / Faculty of Chemical Engineering (KTF), Laboratory of Paper Chemistry |
| Address: |
Porthansgatan 3, FIN-20500 Åbo
Phone +358-2-2154 625 Fax +358-2-2516 757 |
| Project leader: |
TkD Dan Eklund, professor
(1.8.1993-) |
| Researchers: |
DI Petteri Voutilainen (1.8.1993-) DI Fredrik Ohde (1.2.1994-30.10.1995) |
| Type of research: |
1 (0=Within duty, 1=Ordered research, 2=Co-operation)
- basic research 70 % - applied research 30 % |
| Finnish funding organizations: |
Raisio Chemicals Oy () FIM |
| Man months: | Totally: 53 months |
| Keywords: | massatillverkning, lim, forskning, massanvalmistus, liimat, tutkimus, AKD, calciumcarbonat, limflykt, adsorption, limning, cellulosa, mekanisk massa, alkaline papermaking, sizing, |
In neutral papermaking, AKD sizing has raised contraversial opinions.Most of the discussions concern the possible reactions of AKD.In this study the adsorption of AKD is more closely considered.Proper adsorption is a prerequisite for a succesful sizing.A good knowledge of the adsorption behavior is a tool to optimize the AKD dosage on the papermachine.Another subject which has raised a vivid discussion is size reversion.An investigation of the different filler properties as well as the paper making conditions was performed.
21.2.1996 / 22.2.1996