Feasibility study of cellulose nanofiber alignment by high DC magnetic field

Hyun Chan Kim; Jinmo Kang; Jung Ho Park; Asma Akther; Jaehwan Kim

doi:10.1117/12.2259830

17 April 2017 Feasibility study of cellulose nanofiber alignment by high DC magnetic field

Hyun Chan Kim, Jinmo Kang, Jung Ho Park, Asma Akther, Jaehwan Kim

Proceedings Volume 10167, Nanosensors, Biosensors, Info-Tech Sensors and 3D Systems 2017; 101670H (2017) https://doi.org/10.1117/12.2259830
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2017, Portland, Oregon, United States

Abstract

Cellulose nanofiber (CNF) has taken center stage as a future material with high specific strength, specific modulus and environmentally friendly behavior. However, natural CNFs are so randomly oriented that once CNFs are used in composites, their mechanical properties are not the same as expected from the CNFs. Thus, CNF alignment is important in fabricating composites and fibers. Interestingly, CNFs have negative diamagnetic anisotropy. In the presence of high magnetic field, the fiber axis of CNF can be aligned perpendicular to the applied field. This paper reports a preliminary study of CNF alignment by high dc magnetic field. The CNF emulsion is prepared by aqueous counter collision method and centrifugation. The CNF emulsion is placed in the high dc magnet and cured for a certain time. The alignment of CNF is investigated by scanning electron microscopy, mechanical tensile test.

Conference Presentation

Citation Download Citation

Hyun Chan Kim, Jinmo Kang, Jung Ho Park, Asma Akther, and Jaehwan Kim "Feasibility study of cellulose nanofiber alignment by high DC magnetic field", Proc. SPIE 10167, Nanosensors, Biosensors, Info-Tech Sensors and 3D Systems 2017, 101670H (17 April 2017); https://doi.org/10.1117/12.2259830

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