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Lim H, Kim YK, Kim HS, Lee T, Hossain MM, Jeong HO, Lee HS, Cho H, Joo Y, Lee SS, Park S, Rho H, Jeong HS, Kim MJ, Ahn S, Moon SY, Kim KS, Choi SQ, Kim BJ, Jang SG. Lyotropic Boron Nitride Nanotube Liquid Crystals: Preparation, Characterization, and Wet-Spinning for Fabrication of Composite Fiber. ACS APPLIED MATERIALS & INTERFACES 2023; 15:24681-24692. [PMID: 37163756 DOI: 10.1021/acsami.3c00189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Microfiber fabrication via wet-spinning of lyotropic liquid crystals (LCs) with anisotropic nanomaterials has gained increased attention due to the microfibers' excellent physical/chemical properties originating from the unidirectional alignment of anisotropic nanomaterials along the fiber axis with high packing density. For wet-spinning of the microfibers, however, preparing lyotropic LCs by achieving high colloidal stability of anisotropic nanomaterials, even at high concentrations, has been a critically unmet prerequisite, especially for recently emerging nanomaterials. Here, we propose a cationically charged polymeric stabilizer that can efficiently be adsorbed on the surface of boron nitride nanotubes (BNNTs), which provide steric hindrance in combination with Coulombic repulsion leading to high colloidal stability of BNNTs up to 22 wt %. The BNNT LCs prepared from the dispersions with various stabilizers were systematically compared using optical and rheological analysis to optimize the phase behavior and rheological properties for wet-spinning of the BNNT LCs. Systematic optical and mechanical characterizations of the BNNT microfibers with aligned BNNTs along the fiber axis revealed that properties of the microfibers, such as their tensile strength, packing density, and degree of BNNT alignment, were highly dependent on the quality of BNNT LCs directly related to the types of stabilizers.
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Affiliation(s)
- Hongjin Lim
- Functional Composite Materials Research Center, Institute of Advanced Composites Materials, Korea Institute of Science and Technology, Wanju, Jeonbuk 55324, Republic of Korea
| | - Young-Kyeong Kim
- Functional Composite Materials Research Center, Institute of Advanced Composites Materials, Korea Institute of Science and Technology, Wanju, Jeonbuk 55324, Republic of Korea
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Hong-Sik Kim
- School of Chemical Engineering, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 61186, Republic of Korea
| | - Taegeon Lee
- Department of Physics, Research Institute of Physics and Chemistry, Jeonbuk National University, Jeonju 54896, Republic of Korea
| | - Md Monir Hossain
- Functional Composite Materials Research Center, Institute of Advanced Composites Materials, Korea Institute of Science and Technology, Wanju, Jeonbuk 55324, Republic of Korea
- Department of Chemistry, Department of Bioactive Materials Sciences, and Research Institute of Physics and Chemistry, Jeonbuk National University, Jeonju, Jeonbuk 54896, Republic of Korea
| | - Hyun-Oh Jeong
- Functional Composite Materials Research Center, Institute of Advanced Composites Materials, Korea Institute of Science and Technology, Wanju, Jeonbuk 55324, Republic of Korea
| | - Heon Sang Lee
- Department of Chemical Engineering, Dong-A University, Busan 49315, Republic of Korea
| | - Hyunjin Cho
- Functional Composite Materials Research Center, Institute of Advanced Composites Materials, Korea Institute of Science and Technology, Wanju, Jeonbuk 55324, Republic of Korea
| | - Yongho Joo
- Functional Composite Materials Research Center, Institute of Advanced Composites Materials, Korea Institute of Science and Technology, Wanju, Jeonbuk 55324, Republic of Korea
| | - Sang Seok Lee
- Functional Composite Materials Research Center, Institute of Advanced Composites Materials, Korea Institute of Science and Technology, Wanju, Jeonbuk 55324, Republic of Korea
| | - Sungjune Park
- Department of Polymer-Nano Science and Technology, Department of Nano Convergence Engineering, Jeonbuk National University, Jeonju 54896, Republic of Korea
| | - Heesuk Rho
- Department of Physics, Research Institute of Physics and Chemistry, Jeonbuk National University, Jeonju 54896, Republic of Korea
| | - Hyeon Su Jeong
- Functional Composite Materials Research Center, Institute of Advanced Composites Materials, Korea Institute of Science and Technology, Wanju, Jeonbuk 55324, Republic of Korea
| | - Myung Jong Kim
- Department of Chemistry, Gachon University, 1342 Seongnam-daero, Sujeong-gu, Seongnam-si, Gyeonggi-do 13120, Republic of Korea
| | - Seokhoon Ahn
- Functional Composite Materials Research Center, Institute of Advanced Composites Materials, Korea Institute of Science and Technology, Wanju, Jeonbuk 55324, Republic of Korea
| | - Se Youn Moon
- Department of Quantum System Engineering, Jeonbuk National University, 567, Baekje-daero, Deokjin-gu, Jeonju-si, Jeollabuk-do 54896, Republic of Korea
- High-Enthalpy Plasma Research Center, Jeonbuk National University, 546 Bongdong-ro, Bongdong-eup, Wanju-gun, Jeollabuk-do 55317, Republic of Korea
| | - Keun Su Kim
- Security and Disruptive Technologies Research Centre, Emerging Technologies Division, National Research Council Canada, Ottawa, Ontario K1A 0R6, Canada
| | - Siyoung Q Choi
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
- KAIST Institute for the NanoCentury, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Bumjoon J Kim
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Se Gyu Jang
- Functional Composite Materials Research Center, Institute of Advanced Composites Materials, Korea Institute of Science and Technology, Wanju, Jeonbuk 55324, Republic of Korea
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Kim SG, Heo SJ, Kim J, Kim SO, Lee D, Kim M, Kim ND, Kim D, Hwang JY, Chae HG, Ku B. Ultrastrong Hybrid Fibers with Tunable Macromolecular Interfaces of Graphene Oxide and Carbon Nanotube for Multifunctional Applications. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2203008. [PMID: 35988149 PMCID: PMC9561868 DOI: 10.1002/advs.202203008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/21/2022] [Revised: 07/20/2022] [Indexed: 06/15/2023]
Abstract
Individual carbon nanotubes (CNT) and graphene have unique mechanical and electrical properties; however, the properties of their macroscopic assemblies have not met expectations because of limited physical dimensions, the limited degree of dispersion of the components, and various structural defects. Here, a state-of-the-art assembly for a novel type of hybrid fiber possessing the properties required for a wide variety of multifunctional applications is presented. A simple and effective multidimensional nanostructure of CNT and graphene oxide (GO) assembled by solution processing improves the interfacial utilization of the components. Flexible GOs are effectively intercalated between nanotubes along the shape of CNTs, which reduces voids, enhances orientation, and maximizes the contact between elements. The microstructure is finely controlled by the elements content ratio and dimensions, and an optimal balance improves the mechanical properties. The hybrid fibers simultaneously exhibit exceptional strength (6.05 GPa), modulus (422 GPa), toughness (76.8 J g-1 ), electrical conductivity (8.43 MS m-1 ), and knot strength efficiency (92%). Furthermore, surface and electrochemical properties are significantly improved by tuning the GO content, further expanding the scope of applications. These hybrid fibers are expected to offer a strategy for overcoming the limitations of existing fibers in meeting the requirements for applications in the fiber industry.
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Affiliation(s)
- Seo Gyun Kim
- Institute of Advanced Composite MaterialsKorea Institute of Science and Technology (KIST)Wanju55324Republic of Korea
| | - So Jeong Heo
- Institute of Advanced Composite MaterialsKorea Institute of Science and Technology (KIST)Wanju55324Republic of Korea
- Department of Materials Science and EngineeringUlsan National Institute of Science and Technology (UNIST)Ulsan44919Republic of Korea
| | - Jeong‐Gil Kim
- Institute of Advanced Composite MaterialsKorea Institute of Science and Technology (KIST)Wanju55324Republic of Korea
- Department of Chemical and Biomolecular EngineeringKorea Advanced Institute of Science and Technology (KAIST)Daejeon34141Republic of Korea
| | - Sang One Kim
- Institute of Advanced Composite MaterialsKorea Institute of Science and Technology (KIST)Wanju55324Republic of Korea
- Department of Carbon Materials and Fiber EngineeringJeonbuk National UniversityJeonju54896Republic of Korea
| | - Dongju Lee
- Institute of Advanced Composite MaterialsKorea Institute of Science and Technology (KIST)Wanju55324Republic of Korea
- Department of Applied BioengineeringGraduate School of Convergence Science and TechnologySeoul National UniversitySuwon16229Republic of Korea
| | - Minkook Kim
- Institute of Advanced Composite MaterialsKorea Institute of Science and Technology (KIST)Wanju55324Republic of Korea
| | - Nam Dong Kim
- Institute of Advanced Composite MaterialsKorea Institute of Science and Technology (KIST)Wanju55324Republic of Korea
| | - Dae‐Yoon Kim
- Institute of Advanced Composite MaterialsKorea Institute of Science and Technology (KIST)Wanju55324Republic of Korea
| | - Jun Yeon Hwang
- Institute of Advanced Composite MaterialsKorea Institute of Science and Technology (KIST)Wanju55324Republic of Korea
| | - Han Gi Chae
- Department of Materials Science and EngineeringUlsan National Institute of Science and Technology (UNIST)Ulsan44919Republic of Korea
| | - Bon‐Cheol Ku
- Institute of Advanced Composite MaterialsKorea Institute of Science and Technology (KIST)Wanju55324Republic of Korea
- Department of Nano ConvergenceJeonbuk National UniversityJeonju54896Republic of Korea
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3
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Gaumond B, Livi S, Gérard JF, Duchet-Rumeau J. Imidazolium Salt for Enhanced Interfacial Shear Strength in Polyphenylene Sulfide/Ex-PAN Carbon Fiber Composites. Polymers (Basel) 2022; 14:polym14173692. [PMID: 36080769 PMCID: PMC9459804 DOI: 10.3390/polym14173692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 08/30/2022] [Accepted: 08/31/2022] [Indexed: 11/16/2022] Open
Abstract
Processing structural or semi-structural thermoplastic-based composites is a promising solution to solve the environmental issues of the aeronautic industry. However, these composites must withstand high standard specification to ensure safety during transportation. For this reason, there is a real need to develop strong interactions between thermoplastic polymers and reinforcement fibers. This paper investigates relationships between the surface chemistry, microstructure and micromechanical properties between polyphenylene sulfide and ex-PAN carbon fibers. The incorporation of ionic salt such as 1,3-Bis(4-carboxyphenyl)imidazolium chloride into neat polyphenylene sulfide was able to significantly increase the interfacial shear strength measured by microbond micromechanical test combined with different carbon fiber surfaces treatment.
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Lee D, Kim SG, Hong S, Madrona C, Oh Y, Park M, Komatsu N, Taylor LW, Chung B, Kim J, Hwang JY, Yu J, Lee DS, Jeong HS, You NH, Kim ND, Kim DY, Lee HS, Lee KH, Kono J, Wehmeyer G, Pasquali M, Vilatela JJ, Ryu S, Ku BC. Ultrahigh strength, modulus, and conductivity of graphitic fibers by macromolecular coalescence. SCIENCE ADVANCES 2022; 8:eabn0939. [PMID: 35452295 PMCID: PMC9032978 DOI: 10.1126/sciadv.abn0939] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Accepted: 03/07/2022] [Indexed: 05/26/2023]
Abstract
Theoretical considerations suggest that the strength of carbon nanotube (CNT) fibers be exceptional; however, their mechanical performance values are much lower than the theoretical values. To achieve macroscopic fibers with ultrahigh performance, we developed a method to form multidimensional nanostructures by coalescence of individual nanotubes. The highly aligned wet-spun fibers of single- or double-walled nanotube bundles were graphitized to induce nanotube collapse and multi-inner walled structures. These advanced nanostructures formed a network of interconnected, close-packed graphitic domains. Their near-perfect alignment and high longitudinal crystallinity that increased the shear strength between CNTs while retaining notable flexibility. The resulting fibers have an exceptional combination of high tensile strength (6.57 GPa), modulus (629 GPa), thermal conductivity (482 W/m·K), and electrical conductivity (2.2 MS/m), thereby overcoming the limits associated with conventional synthetic fibers.
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Affiliation(s)
- Dongju Lee
- Institute of Advanced Composite Materials, Korea Institute of Science and Technology (KIST), Wanju 55324, Republic of Korea
- Department of Advanced Materials Engineering, Center for Advanced Material Analysis, The University of Suwon, Suwon 18323, Republic of Korea
| | - Seo Gyun Kim
- Institute of Advanced Composite Materials, Korea Institute of Science and Technology (KIST), Wanju 55324, Republic of Korea
| | - Seungki Hong
- Institute of Advanced Composite Materials, Korea Institute of Science and Technology (KIST), Wanju 55324, Republic of Korea
| | - Cristina Madrona
- IMDEA Materials Institute, Eric Kandel 2, Getafe, Madrid 28906, Spain
- Facultad de Ciencias, Universidad Autónoma de Madrid, Francisco Tomás y Valiente 7, Madrid 28049, Spain
| | - Yuna Oh
- Institute of Advanced Composite Materials, Korea Institute of Science and Technology (KIST), Wanju 55324, Republic of Korea
| | - Min Park
- Institute of Advanced Composite Materials, Korea Institute of Science and Technology (KIST), Wanju 55324, Republic of Korea
| | - Natsumi Komatsu
- Department of Electrical & Computer Engineering and the Carbon Hub, Rice University, Houston, TX 77005, USA
| | - Lauren W. Taylor
- Department of Chemical & Biomolecular Engineering and the Carbon Hub, Rice University, Houston, TX 77005, USA
| | - Bongjin Chung
- Department of Advanced Materials Engineering, Center for Advanced Material Analysis, The University of Suwon, Suwon 18323, Republic of Korea
| | - Jungwon Kim
- Institute of Advanced Composite Materials, Korea Institute of Science and Technology (KIST), Wanju 55324, Republic of Korea
| | - Jun Yeon Hwang
- Institute of Advanced Composite Materials, Korea Institute of Science and Technology (KIST), Wanju 55324, Republic of Korea
| | - Jaesang Yu
- Institute of Advanced Composite Materials, Korea Institute of Science and Technology (KIST), Wanju 55324, Republic of Korea
| | - Dong Su Lee
- Institute of Advanced Composite Materials, Korea Institute of Science and Technology (KIST), Wanju 55324, Republic of Korea
| | - Hyeon Su Jeong
- Institute of Advanced Composite Materials, Korea Institute of Science and Technology (KIST), Wanju 55324, Republic of Korea
| | - Nam Ho You
- Institute of Advanced Composite Materials, Korea Institute of Science and Technology (KIST), Wanju 55324, Republic of Korea
| | - Nam Dong Kim
- Institute of Advanced Composite Materials, Korea Institute of Science and Technology (KIST), Wanju 55324, Republic of Korea
| | - Dae-Yoon Kim
- Institute of Advanced Composite Materials, Korea Institute of Science and Technology (KIST), Wanju 55324, Republic of Korea
| | - Heon Sang Lee
- Department of Chemical Engineering, Dong-A University, Busan 49315, Republic of Korea
| | - Kun-Hong Lee
- Department of Chemical Engineering, Pohang University of Science & Technology, Pohang, Gyeongbuk 37673, Republic of Korea
| | - Junichiro Kono
- Departments of Electrical & Computer Engineering, Physics & Astronomy, and Materials Science & NanoEngineering, the Smalley-Curl Institute, and the Carbon Hub, Rice University, Houston, TX 77005, USA
| | - Geoff Wehmeyer
- Department of Mechanical Engineering and the Carbon Hub, Rice University, Houston, TX 77005, USA
| | - Matteo Pasquali
- Departments of Chemical Engineering & Biomolecular Engineering, Chemistry, and Materials Science & NanoEngineering and The Carbon Hub, Rice University, 6100 Main Street, Houston, TX 77005, USA
| | - Juan J. Vilatela
- IMDEA Materials Institute, Eric Kandel 2, Getafe, Madrid 28906, Spain
| | - Seongwoo Ryu
- Department of Advanced Materials Engineering, Center for Advanced Material Analysis, The University of Suwon, Suwon 18323, Republic of Korea
| | - Bon-Cheol Ku
- Institute of Advanced Composite Materials, Korea Institute of Science and Technology (KIST), Wanju 55324, Republic of Korea
- Department of Nano Convergence, Jeonbuk National University, Jeonju 54896, Republic of Korea
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Oh E, Cho H, Kim J, Kim JE, Yi Y, Choi J, Lee H, Im YH, Lee KH, Lee WJ. Super-Strong Carbon Nanotube Fibers Achieved by Engineering Gas Flow and Postsynthesis Treatment. ACS APPLIED MATERIALS & INTERFACES 2020; 12:13107-13115. [PMID: 32078299 DOI: 10.1021/acsami.9b19861] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Carbon nanotube fibers (CNTFs) are directly spun from a floating-catalyst chemical vapor deposition apparatus using gas-phase carbon and an iron nanocatalyst. The essential synthesis and post-treatment factors that affect the strength of CNTFs are investigated to obtain CNTFs with greater strength than those of any previously reported high-performance fibers. The key factors optimized included the degree of rotational flow inside the reactor, the ratio of the starting materials, and the postsynthesis treatment conditions. The formation of rotational gas flow inside the reactor was confirmed by computational fluid dynamics simulations, and the feed ratio of the starting materials was optimized through response surface methodology. In addition, a reproducible and highly efficient postsynthesis treatment method was established. Pristine CNTFs with a high specific strength (SS) (average 2.2 N/tex, max. 2.3 N/tex) were synthesized through decreased rotational flow and optimization of the CNTF synthesis conditions. To improve the SS of the CNTFs further, we adopted an acid wet-stretching method that included washing and heat treatment. This drastically increased the SS of the CNTFs (average 5.5 N/tex, max. 6.4 N/tex) because of the decrease in the volume of the pores between the CNT bundles.
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Affiliation(s)
- Eugene Oh
- LG Chem R&D Campus Daejeon, 188 Munji-ro, Yuseong-gu, Daejeon 34122, Republic of Korea
| | - Hyunjung Cho
- LG Chem R&D Campus Daejeon, 188 Munji-ro, Yuseong-gu, Daejeon 34122, Republic of Korea
| | - Juhan Kim
- LG Chem R&D Campus Daejeon, 188 Munji-ro, Yuseong-gu, Daejeon 34122, Republic of Korea
| | - Ji Eun Kim
- LG Chem R&D Campus Daejeon, 188 Munji-ro, Yuseong-gu, Daejeon 34122, Republic of Korea
| | - Youngjin Yi
- LG Chem R&D Campus Daejeon, 188 Munji-ro, Yuseong-gu, Daejeon 34122, Republic of Korea
| | - Junwon Choi
- LG Chem R&D Campus Daejeon, 188 Munji-ro, Yuseong-gu, Daejeon 34122, Republic of Korea
| | - Haemin Lee
- Department of Chemical Engineering, Pohang University of Science & Technology, 77 Cheongam-Ro, Nam-Gu, Pohang, Gyeongbuk 37673, Republic of Korea
| | - Ye Hoon Im
- LG Chem R&D Campus Daejeon, 188 Munji-ro, Yuseong-gu, Daejeon 34122, Republic of Korea
| | - Kun-Hong Lee
- Department of Chemical Engineering, Pohang University of Science & Technology, 77 Cheongam-Ro, Nam-Gu, Pohang, Gyeongbuk 37673, Republic of Korea
| | - Won Jae Lee
- LG Chem R&D Campus Daejeon, 188 Munji-ro, Yuseong-gu, Daejeon 34122, Republic of Korea
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Zhang X, Lu W, Zhou G, Li Q. Understanding the Mechanical and Conductive Properties of Carbon Nanotube Fibers for Smart Electronics. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e1902028. [PMID: 31250496 DOI: 10.1002/adma.201902028] [Citation(s) in RCA: 70] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2019] [Revised: 05/15/2019] [Indexed: 05/23/2023]
Abstract
The development of fiber-based smart electronics has provoked increasing demand for high-performance and multifunctional fiber materials. Carbon nanotube (CNT) fibers, the 1D macroassembly of CNTs, have extensively been utilized to construct wearable electronics due to their unique integration of high porosity/surface area, desirable mechanical/physical properties, and extraordinary structural flexibility, as well as their novel corrosion/oxidation resistivity. To take full advantage of CNT fibers, it is essential to understand their mechanical and conductive properties. Herein, the recent progress regarding the intrinsic structure-property relationship of CNT fibers, as well as the strategies of enhancing their mechanical and conductive properties are briefly summarized, providing helpful guidance for scouting ideally structured CNT fibers for specific flexible electronic applications.
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Affiliation(s)
- Xiaohua Zhang
- Division of Advanced Nano-Materials, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China
- Innovation Center for Textile Science and Technology, Donghua University, Shanghai, 200051, China
| | - Weibang Lu
- Division of Advanced Nano-Materials, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China
| | - Gengheng Zhou
- Division of Advanced Nano-Materials, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China
| | - Qingwen Li
- Division of Advanced Nano-Materials, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China
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Direct spinning and densification method for high-performance carbon nanotube fibers. Nat Commun 2019; 10:2962. [PMID: 31273205 PMCID: PMC6609687 DOI: 10.1038/s41467-019-10998-0] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Accepted: 06/13/2019] [Indexed: 11/08/2022] Open
Abstract
Developing methods to assemble nanomaterials into macroscopic scaffolds is of critical significance at the current stage of nanotechnology. However, the complications of the fabrication methods impede the widespread usages of newly developed materials even with the superior properties in many cases. Here, we demonstrate the feasibility of a highly-efficient and potentially-continuous fiber-spinning method to produce high-performance carbon nanotube (CNT) fiber (CNTF). The processing time is <1 min from synthesis of CNTs to fabrication of highly densified and aligned CNTFs. CNTFs that are fabricated by the developed spinning method are ultra-lightweight, strong (specific tensile strength = 4.08 ± 0.25 Ntex−1), stiff (specific tensile modulus = 187.5 ± 7.4 Ntex−1), electrically conductive (2,270 S m2kg−1), and highly flexible (knot efficiency = 48 ± 15%), so they are suitable for various high-value fabric-based applications. The tensile strength of a carbon nanotube fiber is predicted to increase as its constituent nanotubes become more perfectly and densely aligned. Here, the authors present an optimized direct-spinning and chlorosulfonic acid densification method to rapidly produce carbon nanotube fibers with excellent mechanical and electrical properties.
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Effects of Wet-Pressing and Cross-Linking on the Tensile Properties of Carbon Nanotube Fibers. MATERIALS 2018; 11:ma11112170. [PMID: 30400179 PMCID: PMC6266003 DOI: 10.3390/ma11112170] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Revised: 10/24/2018] [Accepted: 10/30/2018] [Indexed: 11/18/2022]
Abstract
To increase the strength of carbon nanotube (CNT) fibers (CNTFs), the mean size of voids between bundles of CNTs was reduced by wet-pressing, and the CNTs were cross-linked. Separate and simultaneous physical (roller pressing) and chemical methods (cross-linking) were tested to confirm each method’s effects on the CNTF strength. By reducing the fraction of pores, roller pressing decreased the cross-sectional area from 160 μm2 to 66 μm2 and increased the average load-at-break from 2.83 ± 0.25 cN to 4.41 ± 0.16 cN. Simultaneous injection of crosslinker and roller pressing augmented the cross-linking effect by increasing the infiltration of the crosslinker solution into the CNTF, so the specific strength increased from 0.40 ± 0.05 N/tex to 0.67 ± 0.04 N/tex. To increase the strength by cross-linking, it was necessary that the size of the pores inside the CNTF were reduced, and the infiltration of the solution was increased. These results suggest that combined physical and chemical treatment is effective to increase the strength of CNTFs.
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Kim IH, Yun T, Kim JE, Yu H, Sasikala SP, Lee KE, Koo SH, Hwang H, Jung HJ, Park JY, Jeong HS, Kim SO. Mussel-Inspired Defect Engineering of Graphene Liquid Crystalline Fibers for Synergistic Enhancement of Mechanical Strength and Electrical Conductivity. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1803267. [PMID: 30088842 DOI: 10.1002/adma.201803267] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Revised: 06/25/2018] [Indexed: 06/08/2023]
Abstract
Inspired by mussel adhesive polydopamine (PDA), effective reinforcement of graphene-based liquid crystalline fibers to attain high mechanical and electrical properties simultaneously is presented. The two-step defect engineering, relying on bioinspired surface polymerization and subsequent solution infiltration of PDA, addresses the intrinsic limitation of graphene fibers arising from the folding and wrinkling of graphene layers during the fiber-spinning process. For a clear understanding of the mechanism of PDA-induced defect engineering, interfacial adhesion between graphene oxide sheets is straightforwardly analyzed by the atomic force microscopy pull-off test. Subsequently, PDA could be converted into an N-doped graphitic layer within the fiber structure by a mild thermal treatment such that mechanically strong fibers could be obtained without sacrificing electrical conductivity. Bioinspired graphene-based fiber holds great promise for a wide range of applications, including flexible electronics, multifunctional textiles, and wearable sensors.
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Affiliation(s)
- In Ho Kim
- National Creative Research Initiative Center for Multi-Dimensional Directed Nanoscale Assembly, Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Taeyeong Yun
- National Creative Research Initiative Center for Multi-Dimensional Directed Nanoscale Assembly, Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Jae-Eun Kim
- Center for Nanomaterials and Chemical Reactions, Institute for Basic Science (IBS), Daejeon, 34141, Republic of Korea
- Graduate School of EEWS, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Hayoung Yu
- Institute of Advanced Composite Materials, Korea Institute of Science and Technology (KIST), Jeonrabuk-do, 55324, Republic of Korea
| | - Suchithra Padmajan Sasikala
- National Creative Research Initiative Center for Multi-Dimensional Directed Nanoscale Assembly, Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Kyung Eun Lee
- National Creative Research Initiative Center for Multi-Dimensional Directed Nanoscale Assembly, Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Sung Hwan Koo
- National Creative Research Initiative Center for Multi-Dimensional Directed Nanoscale Assembly, Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Hoseong Hwang
- National Creative Research Initiative Center for Multi-Dimensional Directed Nanoscale Assembly, Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Hong Ju Jung
- National Creative Research Initiative Center for Multi-Dimensional Directed Nanoscale Assembly, Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Jeong Young Park
- Center for Nanomaterials and Chemical Reactions, Institute for Basic Science (IBS), Daejeon, 34141, Republic of Korea
- Graduate School of EEWS, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Hyeon Su Jeong
- Institute of Advanced Composite Materials, Korea Institute of Science and Technology (KIST), Jeonrabuk-do, 55324, Republic of Korea
| | - Sang Ouk Kim
- National Creative Research Initiative Center for Multi-Dimensional Directed Nanoscale Assembly, Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
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10
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Yadav MD, Dasgupta K, Patwardhan AW, Joshi JB. High Performance Fibers from Carbon Nanotubes: Synthesis, Characterization, and Applications in Composites—A Review. Ind Eng Chem Res 2017. [DOI: 10.1021/acs.iecr.7b02269] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Manishkumar D. Yadav
- Department
of Chemical Engineering, Institute of Chemical Technology, Mumbai 400019, India
| | - Kinshuk Dasgupta
- Materials
Group, Bhabha Atomic Research Centre, Mumbai 400085, India
| | - Ashwin W. Patwardhan
- Department
of Chemical Engineering, Institute of Chemical Technology, Mumbai 400019, India
| | - Jyeshtharaj B. Joshi
- Department
of Chemical Engineering, Institute of Chemical Technology, Mumbai 400019, India
- Homi Bhabha National Institute, Mumbai 400094, India
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Lee J, Lee DM, Kim YK, Jeong HS, Kim SM. Significantly Increased Solubility of Carbon Nanotubes in Superacid by Oxidation and Their Assembly into High-Performance Fibers. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2017; 13:1701131. [PMID: 28786553 DOI: 10.1002/smll.201701131] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Revised: 06/26/2017] [Indexed: 06/07/2023]
Abstract
This study demonstrates that small amount of oxygen incorporated into carbon nanotubes (CNTs) during the purification process greatly increases their solubility in chlorosulfonic acid (CSA). Using as-purchased and unpurified CNT powders, the optimal purification process is established to significantly increase the solubility of CNTs in CSA, and spin CNT fibers with high mechanical strength (0.84 N tex-1 ) and electrical conductivity (1.4 MS m-1 ) from the CNT liquid crystal dope with high concentration of CNTs in CSA. The knowledge obtained here may guide development of a way to dissolve extremely long CNTs at high concentration and thereby to enable production of CNT fibers with ultimate properties.
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Affiliation(s)
- Jaegeun Lee
- Institute of Advanced Composite Materials, Korea Institute of Science and Technology, 92 Chudong-ro, Bongdong-eup, Wanju-gun, Jeonbuk, 55324, South Korea
| | - Dong-Myeong Lee
- Institute of Advanced Composite Materials, Korea Institute of Science and Technology, 92 Chudong-ro, Bongdong-eup, Wanju-gun, Jeonbuk, 55324, South Korea
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, South Korea
| | - Young-Kwan Kim
- Institute of Advanced Composite Materials, Korea Institute of Science and Technology, 92 Chudong-ro, Bongdong-eup, Wanju-gun, Jeonbuk, 55324, South Korea
| | - Hyeon Su Jeong
- Institute of Advanced Composite Materials, Korea Institute of Science and Technology, 92 Chudong-ro, Bongdong-eup, Wanju-gun, Jeonbuk, 55324, South Korea
| | - Seung Min Kim
- Institute of Advanced Composite Materials, Korea Institute of Science and Technology, 92 Chudong-ro, Bongdong-eup, Wanju-gun, Jeonbuk, 55324, South Korea
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12
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Li Y, Wan W. Exploring Polymer Nanofiber Mechanics: A review of the methods for determining their properties. IEEE NANOTECHNOLOGY MAGAZINE 2017. [DOI: 10.1109/mnano.2017.2708819] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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