title: 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.
authors.affiliation: Department of Chemical Technologies, Iranian Research Organization for Science and Technology (IROST), Tehran, Iran. ashori@irost.org
authors.forename: Alireza
authors.initials: A
authors.lastname: Ashori
authors.forename: Nereida
authors.initials: N
authors.lastname: Cordeiro
authors.forename: Marisa
authors.initials: M
authors.lastname: Faria
authors.forename: Yahya
authors.initials: Y
authors.lastname: Hamzeh
mesh_terms: D002412:Cations; D002482:Cellulose / Q000737:chemistry*; D048271:Chitosan / Q000737:chemistry*; D010209:Paper; D013213:Starch / Q000737:chemistry*; D013499:Surface Properties; D013718:Tensile Strength
chemical_list: D002412:Cations; D002482:Cellulose; D013213:Starch; C027433:bagasse; D048271:Chitosan