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

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

Research output: Contribution to journalArticlepeer-review

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.

Original languageEnglish
Article number107006
JournalPolymer Testing
Volume93
DOIs
Publication statusPublished - 2021 Jan

Bibliographical note

Funding Information:
This work was supported by the Korea Institute of Science and Technology (KIST) Institutional Program. We would like to thank Dr. Yong-Tae Kim, CEO (BIOVIT co., Republic of Korea) for antimicrobial tests and good advice.

Publisher Copyright:
© 2020

All Science Journal Classification (ASJC) codes

  • Organic Chemistry
  • Polymers and Plastics

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