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Cui Y, Hua X, Liu LZ, Li S, Shi Y. Evaluating polyacrylonitrile precursor structure effects on carbon fiber production. Polym Bull (Berl) 2022. [DOI: 10.1007/s00289-022-04451-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Wang Z, Luo H, Martin HJ, Wang T, Sun Y, Arnould MA, Thapaliya BP, Dai S. Controlling the elasticity of polyacrylonitrile fibers via ionic liquids containing cyano-based anions. RSC Adv 2022; 12:8656-8660. [PMID: 35424785 PMCID: PMC8984951 DOI: 10.1039/d2ra00858k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Accepted: 03/07/2022] [Indexed: 01/26/2023] Open
Abstract
As the predominant precursor for high-performance carbon fiber manufacturing, the fabrication of polyacrylonitrile (PAN)-based composite fibers attracts great interest. Ionic liquids (ILs) have recently been investigated for melt-spinning of ultrafine PAN fibers. The plasticizing properties of ILs are significantly affected by the structure of ILs and can be influenced by electronegativity, steric effects, etc. Herein, we report a facile strategy to control the elasticity of the PAN/ILs fibers by tuning the anion structure of ILs. Particularly, the ILs containing nitrile-rich groups exhibited enhanced plasticizing effect and nucleating ability on dissolving PAN components, achieving highly stretchable PAN/ILs fibers. Highly stretchable PAN/ILs fibers were fabricated through melt-spinning with ionic liquids containing cyano-based anions.![]()
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Affiliation(s)
- Zongyu Wang
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - Huimin Luo
- Manufacturing Science Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - Halie J. Martin
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - Tao Wang
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - Yifan Sun
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - Mark A. Arnould
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - Bishnu P. Thapaliya
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - Sheng Dai
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
- Department of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996, USA
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Gao Q, Jing M, Zhao S, Wang Y, Qin J, Yu M, Wang C. From Microfibrillar Network to Lamellae during the Coagulation Process of Polyacrylonitrile Fiber: Visualization of Intermediate Structure Evolution. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c01670] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Quan Gao
- Key Laboratory of Liquid-Solid Structural Evolution and Processing of Materials of Ministry of Education, School of Materials Science and Engineering, Shandong University, Jinan, Shandong 250061, China
| | - Min Jing
- School of Material Science and Engineering, Shandong Jianzhu University, Jinan 250101, China
| | - Shengyao Zhao
- Key Laboratory of Liquid-Solid Structural Evolution and Processing of Materials of Ministry of Education, School of Materials Science and Engineering, Shandong University, Jinan, Shandong 250061, China
| | - Yuxia Wang
- Key Laboratory of Liquid-Solid Structural Evolution and Processing of Materials of Ministry of Education, School of Materials Science and Engineering, Shandong University, Jinan, Shandong 250061, China
| | - Jianjie Qin
- Key Laboratory of Liquid-Solid Structural Evolution and Processing of Materials of Ministry of Education, School of Materials Science and Engineering, Shandong University, Jinan, Shandong 250061, China
| | - Meijie Yu
- Key Laboratory of Liquid-Solid Structural Evolution and Processing of Materials of Ministry of Education, School of Materials Science and Engineering, Shandong University, Jinan, Shandong 250061, China
| | - Chengguo Wang
- Key Laboratory of Liquid-Solid Structural Evolution and Processing of Materials of Ministry of Education, School of Materials Science and Engineering, Shandong University, Jinan, Shandong 250061, China
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Martin HJ, Luo H, Chen H, Do-Thanh CL, Kearney LT, Mayes R, Naskar AK, Dai S. Effect of the Ionic Liquid Structure on the Melt Processability of Polyacrylonitrile Fibers. ACS APPLIED MATERIALS & INTERFACES 2020; 12:8663-8673. [PMID: 31977177 DOI: 10.1021/acsami.9b19704] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The production of high-strength carbon fibers is an energy-intensive process, where a significant cost involves the wet or dry-spinning of polyacrylonitrile (PAN) fiber precursors. Melt-spinning PAN fibers would allow for significant reduction in the production cost and production hazards. Ionic liquids (ILs) are an attractive fiber-processing medium because of their negligible vapor pressure and low toxicity. In addition, they are carbon-forming precursors; upon carbonization, residual ILs can enhance the carbon yield, although primarily useful for plasticized melt-spinning of PAN precursor fibers. In this research, we investigated the influence of the molecular structure of ILs and the control of plasticizing interactions with PAN during melt-spinning. The structural, thermal, and mechanical properties of the melt-spun PAN fibers were obtained by a combination of various characterization methods, such as differential scanning calorimetry, thermogravimetric analysis, Fourier transform infrared spectroscopy, scanning electron microscopy, X-ray diffraction, and mechanical testing. These results demonstrated that the IL structure and counteranions influence the PAN fiber formation. More specifically, ILs containing bromide counteranions produced PAN precursor fibers with increased mechanical properties compared to ILs containing chloride anions. Our research can provide a foundation to understand the influence of ILs on melt-spinning of PAN fibers and provides us the guidelines for a higher cost-/energy-efficient production of PAN-based carbon fibers.
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Affiliation(s)
- Halie J Martin
- Chemical Sciences Division , Oak Ridge National Laboratory , Oak Ridge , Tennessee 37831 , United States
- Department of Chemistry, Joint Institute for Advanced Materials , University of Tennessee , Knoxville , Tennessee 37996 , United States
| | - Huimin Luo
- Energy and Transportation Science Division , Oak Ridge National Laboratory , Oak Ridge , Tennessee 37831 , United States
| | - Hao Chen
- Department of Chemistry, Joint Institute for Advanced Materials , University of Tennessee , Knoxville , Tennessee 37996 , United States
| | - Chi-Linh Do-Thanh
- Department of Chemistry, Joint Institute for Advanced Materials , University of Tennessee , Knoxville , Tennessee 37996 , United States
| | - Logan T Kearney
- Chemical Sciences Division , Oak Ridge National Laboratory , Oak Ridge , Tennessee 37831 , United States
| | - Richard Mayes
- Chemical Sciences Division , Oak Ridge National Laboratory , Oak Ridge , Tennessee 37831 , United States
| | - Amit K Naskar
- Chemical Sciences Division , Oak Ridge National Laboratory , Oak Ridge , Tennessee 37831 , United States
| | - Sheng Dai
- Chemical Sciences Division , Oak Ridge National Laboratory , Oak Ridge , Tennessee 37831 , United States
- Department of Chemistry, Joint Institute for Advanced Materials , University of Tennessee , Knoxville , Tennessee 37996 , United States
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