title: High-Strength Single-Walled Carbon Nanotube/Permalloy Nanoparticle/Poly(vinyl alcohol) Multifunctional Nanocomposite Fiber.
abstract: Magnetic nanocomposite fibers are a topic of intense research due to their potential breakthrough applications such as smart magnetic-field-response devices and electromagnetic interference (EMI) shielding. However, clustering of nanoparticles in a polymer matrix is a recognized challenge for obtaining a property-controllable nanocomposite fiber. Another challenge is that the strength and ductility of the nanocomposite fiber decrease significantly with increased weight loading of magnetic nanoparticles in the fiber. Here, we report high-strength single-walled carbon nanotube (SWNT)/permalloy nanoparticle (PNP)/poly(vinyl alcohol) multifunctional nanocomposite fibers fabricated by wet spinning. The weight loadings of SWNTs and PNPs in the fiber were as high as 12.0 and 38.0%, respectively. The tensile strength of the fiber was as high as 700 MPa, and electrical conductivity reached 96.7 S m(-1). The saturation magnetization (Ms) was as high as 24.8 emu g(-1). The EMI attenuation of a fabric woven from the prepared fiber approached 100% when tested with electromagnetic waves with a frequency higher than 6 GHz. The present study demonstrates that a magnetic-field-response device can be designed using the fabricated multifunctional nanocomposite fiber.
authors.affiliation: Korea Institute of Materials Science , 797 Changwondaero, Changwon 642-831, South Korea.
authors.forename: Gengheng
authors.initials: G
authors.lastname: Zhou
authors.affiliation: Korea Institute of Materials Science , 797 Changwondaero, Changwon 642-831, South Korea.|School of Mechanical Engineering, Dalian University of Technology , Dalian 116024, China.
authors.forename: Yi-Qi
authors.initials: YQ
authors.lastname: Wang
authors.affiliation: Korea Institute of Materials Science , 797 Changwondaero, Changwon 642-831, South Korea.
authors.forename: Joon-Hyung
authors.initials: JH
authors.lastname: Byun
authors.affiliation: Korea Institute of Materials Science , 797 Changwondaero, Changwon 642-831, South Korea.
authors.forename: Jin-Woo
authors.initials: JW
authors.lastname: Yi
authors.affiliation: Korea Institute of Materials Science , 797 Changwondaero, Changwon 642-831, South Korea.
authors.forename: Sang-Su
authors.initials: SS
authors.lastname: Yoon
authors.affiliation: Korea Institute of Materials Science , 797 Changwondaero, Changwon 642-831, South Korea.
authors.forename: Hwa-Jin
authors.initials: HJ
authors.lastname: Cha
authors.affiliation: Korea Institute of Materials Science , 797 Changwondaero, Changwon 642-831, South Korea.
authors.forename: Jea-Uk
authors.initials: JU
authors.lastname: Lee
authors.affiliation: Korea Institute of Materials Science , 797 Changwondaero, Changwon 642-831, South Korea.
authors.forename: Youngseok
authors.initials: Y
authors.lastname: Oh
authors.affiliation: Korea Institute of Materials Science , 797 Changwondaero, Changwon 642-831, South Korea.
authors.forename: Byung-Mun
authors.initials: BM
authors.lastname: Jung
authors.affiliation: Nano Solution Corporation Co., Ltd. , 817 Palbokdong 2-9a, Deokjin-gu, Jeonju-si 561-844, South Korea.
authors.forename: Ho-Jun
authors.initials: HJ
authors.lastname: Moon
authors.affiliation: Department of Mechanical Engineering, University of Delaware , Newark, Delaware 19716, United States.
authors.forename: Tsu-Wei
authors.initials: TW
authors.lastname: Chou
keywords: electromagnetic interference shielding; magnetic fiber; permalloy nanoparticle; poly(vinyl alcohol); single-walled carbon nanotube; wet spinning