[논문]Flame retardant, antimicrobial, and mechanical properties of multifunctional polyurethane nanofibers containing tannic acid-coated reduced graphene oxide

Kim, Young Nam; Ha, Yu-Mi; Park, Jae Eun; Kim, Young-O; Jo, Jun Young; Han, Haksoo; Lee, Doh C.; Kim, Jaewoo; Jung, Yong Chae

doi:10.1016/j.polymertesting.2020.107006

[해외논문] Flame retardant, antimicrobial, and mechanical properties of multifunctional polyurethane nanofibers containing tannic acid-coated reduced graphene oxide 원문보기

Polymer testing, v.93, 2021년, pp.107006 -

Kim, Young Nam (Institute of Advanced Composite Materials, Korea Institute of Science and Technology (KIST)) , Ha, Yu-Mi (Institute of Advanced Composite Materials, Korea Institute of Science and Technology (KIST)) , Park, Jae Eun (Institute of Advanced Composite Materials, Korea Institute of Science and Technology (KIST)) , Kim, Young-O (Institute of Advanced Composite Materials, Korea Institute of Science and Technology (KIST)) , Jo, Jun Young (Institute of Advanced Composite Materials, Korea Institute of Science and Technology (KIST)) , Han, Haksoo (Department of Chemical and Biomolecular Engineering, Yonsei University) , Lee, Doh C. (Department of Chemical and Biomolecular Engineering, KAIST Institute for the NanoCentury, Korea Advanced Institute of Science and Technology (KAIST)) , Kim, Jaewoo (Institute of Advanced Composite Materials, Kore) , Jung, Yong Chae

Abstract ▼ AI-Helper

Abstract Graphene nanoparticles coated with tannic acid were synthesized as non-halogen flame retardants; further, these nanoparticles were electrospun with polyurethane to produce multifunctional composite nanofibers. The composite nanofibers showed improved flame retardant, antimicrobial, and mechanical properties with increasing amounts of bio-based, non-halogen flame retardant. For instance, at 5 wt% of flame retardant, the peak heat release rate was reduced from 340.75 to 235.23 W/g along with 500% and 135% improvement in the antimicrobial activity and Young's modulus, respectively, compared to neat polyurethane fibers. These multifunctional composite nanofibers have potential applications in various fields, such as automobile, construction, and biomedical device. Highlights Composite nanofibers were synthesized via electrospinning polyurethane with tannic acid-coated graphene nanoparticles. Composite nanofibers showed significant improvement in flame retardant, mechanical, and antimicrobial properties. Multifunctional nanofibers have applications in various fields, such as automobile, construction, and biomedical device.

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