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

Polymer Testing

Jaewoo Kim¹  Yu-Mi Ha²  Jun Young Jo³  Yong Chae Jung⁴  Young Nam Kim⁵  Haksoo Han⁵  Doh C. Lee⁵  Jae Eun Park⁵  Young-O Kim⁵ 

[1] Department of Chemical and Biomolecular Engineering, KAIST Institute for the NanoCentury, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea;Department of Chemical and Biomolecular Engineering, Yonsei University, 262 Seongsanno, Seodaemun-gu, Seoul, 03722, Republic of Korea;School of Chemical Engineering, Jeonbuk National University, Baekje-daero, Deokjin-gu, Jeonju-shi, Jeonllabuk-do, 54896, Republic of Korea;Department of Chemical and Biomolecular Engineering, Yonsei University, 262 Seongsanno, Seodaemun-gu, Seoul, 03722, Republic of Korea;Institute of Advanced Composite Materials, Korea Institute of Science and Technology (KIST), 92 Chudong-ro, Bongdong-eup, Wanju-gun, Jeonllabuk-do, 55324, Republic of Korea;

关键词: Nanofiber;    Flame retardant;    Antimicrobial;    Reinforcing;    Tannic acid;   

DOI  :  

来源: DOAJ

【 摘 要 】

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.

【 授权许可】

Unknown