Two biopolymers were applied to wood fibers suspended in aqueous media under conditions typical of industrial fiber processing units. Adsorption of the biopolymers, which were added as a pre-formed complex, endowed enhanced network strength upon wet-laying in papermaking. A significant effect in the dry strength of the resultant paper (up to 100 % increase) was recorded. Remarkably, this gain in strength was achieved while maintaining a low water absorption capacity (as measured by the water retention value) and also resulted in an enhanced wet strength. The proposed approach represents a promising alternative since it comprises bio-based polymers that are non-toxic and perform under industrially-relevant conditions.
|Number of pages||8|
|Journal||Nordic Pulp & Paper Research Journal|
|Publication status||Published - 2017|
|MoE publication type||A1 Journal article-refereed|
- Dialdehyde starch
- Fiber networks