1. Strong and bulky paperboard sheets from surface modified CTMP, manufactured at low energy
- Author
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Gunilla Pettersson, Sven Norgren, Jörgen Bergström, Jessica Sjöberg, Carl-Henrik Ljungqvist, Hans Höglund, Hans Hallgren, Frank Peng, Anders Moberg, and Daniel Solberg
- Subjects
Paperboard ,Materials science ,Starch ,Surface modified ,Forestry ,Chemical Engineering ,CTMP ,chemistry.chemical_compound ,Adsorption ,Low energy ,Strength properties ,chemistry ,CMC ,Kemiteknik ,visual_art ,Multilayer ,visual_art.visual_art_medium ,General Materials Science ,Composite material - Abstract
A description is given regarding methods used to manufacture strong and bulky sheets from furnishes based on a broad range of surface modified CTMP qualities. Starch and CMC are adsorbed on the fibre surfaces using a multilayer or a MIX concept. It is shown that both the in-plane and out-of-plane strength for the CTMP based sheets after such surface treatment can be more than doubled at a maintained density. This can be utilized to improve bending stiffness or to reduce the basis weight in multi-ply paperboards.
- Published
- 2015