Mechanical and Electrical Properties of Carbon Nanotube Fibers From Impregnation With Poly(vinyl alcohol)/Poly(acrylic acid) and Subsequent Thermal Condensation
- Mechanical and Electrical Properties of Carbon Nanotube Fibers From Impregnation With Poly(vinyl alcohol)/Poly(acrylic acid) and Subsequent Thermal Condensation
- 구본철; 유남호; 고문주; 황준연; 김승민; 김화정; 이재관; 정영진
- CNT fibers; Mechanical properties; Electrical properties; thermal condensation
- Issue Date
- Polymer composites
- VOL 39, NO 3-977
- Sequential impregnation of a composite of poly(vinyl alcohol) and poly(acrylic acid) (PVA– PAA) into carbonnanotube fibers (CNTFs) and thermal condensation were investigated as a simple and efficient continuous textile engineering technique to prepare mechanically and electrically reinforced CNTFs. The CNTFs that were physically impregnated with PVA– PAA (PI-CNTF– (PVA/PAA)) and the chemically crosslinked CNTF (CL-CNTF– (PVA/PAA)) exhibited tensile strengths that were 1.6 and 2.1 times higher, respectively, and Young’s moduli that were 1.3 and 2.3 times higher, respectively, than those of direct-spun CNTFs. The electrical conductivity of PI-CNTF– (PVA/PAA) and CLCNTF– (PVA/PAA) had values that were 1.5 and 1.7 times higher, respectively, than that of raw CNTFs. Moreover, the chemically crosslinked networks of CLCNTF– (PVA/PAA) resulting from the heat treatment enhanced the water resistance of the composite.
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