Effect of chitosan and cationic starch on the surface chemistry properties of bagasse paper

Abstract

The use of non-wood fibers in the paper industry has been an economical and environmental necessity. The application of dry-strength agents has been a successful method to enhance the strength properties of paper. The experimental results evidencing the potential of chitosan and cationic starch utilization in bagasse paper subjected to hot water pre-extraction has been presented in this paper. The research analyzes the surface properties alterations due to these dry-strength agents. Inverse gas chromatography was used to evaluate the properties of surface chemistry of the papers namely the surface energy, active sites, surface area as well as the acidic/basic character. The results of the study revealed that the handsheets process causes surface arrangement and orientation of chemical groups, which induce a more hydrophobic and basic surface. The acid-base surface characteristics after the addition of dry-strength agents were the same as the bagasse handsheets with and without hot water pre-extraction. The results showed that the dry-strength agent acts as a protecting film or glaze on the surfaces of bagasse paper handsheets.

Chitosan: Emergence as potent candidate for green adhesive market

“…The potential of chitosan has been evaluated in development of improved bagasse paper, during this process hot water pre-extraction step positively improves surface arrangement and orientation of chemical groups in a fashion that a hydrophobic groups increased in the top of the surface. This arrangement has resulted more water resistance property, however dry-strength agent acts as a protecting film or glaze on the surfaces of bagasse paper sheets [59].…”

Mechanical, thermal and acoustical characterizations of an insulating bio-based composite made from sunflower stalks particles and chitosan

“…It is the sole cationic polysaccharide described due to its positive charges (NH 3 + ) at acidic pH (pH < 6.5) (Barbosa et al, 2005). Over the past few decades, chitosan has received attention as a functional non-toxic, antimicrobial, biocompatible and biodegradable biopolymer useable in the area of biomaterials and/or biosourced materials (Ashori et al, 2013;Dash et al, 2011;Kumar, 2000;Muzzarelli et al, 2012;Nair and Laurencin, 2007;No et al, 2007;Patel et al, 2013;Shalaby et al, 2004;Umemura et al, 2010). In the light of all its features chitosan was selected as a natural binder for the conception of a thermal insulating material using sunflower stalks particles as reinforcement.…”

Novel nanocomposite biomaterial to differentiate bone marrow mesenchymal stem cells to the osteogenic lineage for bone restoration

“…5 A and B), with increased F-actin production indicative of immature osteogenic differentiation to osteoblasts ( Fig. 5 D) [20] . By contrast, cells on the periphery of the culture on the opposite side of the differentiation boundary, showed limited cellular hypertrophy and proliferation ( Fig.…”