EVALUATING THE EFFECTS OF CHITOSAN-NANOCELLULOSE LAYER-BY-LAYER NANOCOATING ON THE COTTON LINTER FIBERS AND THE PAPER PROPERTIES

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MOHSENI TAVAKOLI S.; RESALATI H.; AFRA E.; IMANI R.; LIIMATAINEN H.

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Journal: Journal of Wood and Forest Science and Technology Year:2015 | Volume:22 | Issue:2 Page(s): 151-170

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Title

EVALUATING THE EFFECTS OF CHITOSAN-NANOCELLULOSE LAYER-BY-LAYER NANOCOATING ON THE COTTON LINTER FIBERS AND THE PAPER PROPERTIES

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Keywords

LAYER-BY-LAYER TECHNIQUEQ2

COTTON LINTERQ1

CHITOSANQ1

NANO FIBRILLATED CELLULOSEQ1

TENSILE INDEXQ2

Abstract

Background and objectives: Cotton fibres are one of important non-wood and industrial cellulosic resources in the world. COTTON LINTERs are produced as a byproduct accompanies with cotton fibers which is used as a significant cellulosic sources in paper industry for producing durable paper. Refining is the most common method used for improvement of bonding potential in fibers. The interfiber bonds in high alpha cellulose pulps such as bleached COTTON LINTER can be only slightly developed by action of refining. Layer-by-Layer self-assembly technique is a novel method in nanotechnology for modification of the surface properties of solid materials. Among these material cellulosic fibers can undergo surface changes by formation of polyelectrolyte multi-layers (PEM) using layer-by-layer method. Therefore, In order to modify the surface properties of linter fibers and develop the fiber-to-fiber bonds, the Layer-by-Layer self-assembly method (LbL), a novel technique in nanotechnology, was used in present research.Materials and methods: Medium molecular weight CHITOSAN were used to form cationic layers while NANO FIBRILLATED CELLULOSE (NFC) were used to form anionic layers. The experiments for making 1 to 3 alternate cationic and anionic layers were performed using linter pulp suspension at 0.5 % consistency, NaCl ionic strength of 0.01 M, different levels of pH and stirring at layer deposition time of 15 min. Adsorption of polymer on the surface of linter fibers was analyzed by electrolyte titration. Standard hand sheets were made from samples of the modified linter fibers and their physical and strength properties were determined. Changes in inter-fiber bond ability due to polymer depositions were evaluated by field emission scanning electron microscopy (FESEM).Results: The results showed, apparent density and also bonding ability was improved significantly at second layer, whereas the apparent density and TENSILE INDEX of the sheet was increased by 10% and 76% compared to untreated fibers at second layer. Bonding ability of fibers was improved by polyelectrolyte multilayering (PEM) on the surface of COTTON LINTER fibers which was visualized by Field Emission Scanning Electron Microscopy (FESEM).Conclusion: Layer-by-layer assembly is a versatile, simple, and easy to use technique that is showed promising results in improving the strength of the COTTON LINTER fiber network. Accordingly, physical and strength properties of the papers made of modified linter fibers were significantly improved because of the increased electrostatic attraction between polycation and anionic existed sites on the fiber surface.

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APA: Copy

MOHSENI TAVAKOLI, S., RESALATI, H., AFRA, E., IMANI, R., & LIIMATAINEN, H.. (2015). EVALUATING THE EFFECTS OF CHITOSAN-NANOCELLULOSE LAYER-BY-LAYER NANOCOATING ON THE COTTON LINTER FIBERS AND THE PAPER PROPERTIES. JOURNAL OF WOOD AND FOREST SCIENCE AND TECHNOLOGY, 22(2), 151-170. SID. https://sid.ir/paper/156877/en

Vancouver: Copy

MOHSENI TAVAKOLI S., RESALATI H., AFRA E., IMANI R., LIIMATAINEN H.. EVALUATING THE EFFECTS OF CHITOSAN-NANOCELLULOSE LAYER-BY-LAYER NANOCOATING ON THE COTTON LINTER FIBERS AND THE PAPER PROPERTIES. JOURNAL OF WOOD AND FOREST SCIENCE AND TECHNOLOGY[Internet]. 2015;22(2):151-170. Available from: https://sid.ir/paper/156877/en

IEEE: Copy

S. MOHSENI TAVAKOLI, H. RESALATI, E. AFRA, R. IMANI, and H. LIIMATAINEN, “EVALUATING THE EFFECTS OF CHITOSAN-NANOCELLULOSE LAYER-BY-LAYER NANOCOATING ON THE COTTON LINTER FIBERS AND THE PAPER PROPERTIES,” JOURNAL OF WOOD AND FOREST SCIENCE AND TECHNOLOGY, vol. 22, no. 2, pp. 151–170, 2015, [Online]. Available: https://sid.ir/paper/156877/en

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