Carbon Fibers from UV-Assisted Stabilization of Lignin-Based Precursors
Production of high strength carbon fibers from bio-derived precursors is of topical interest. Recently, we reported on dry-spinning of a partially acetylated softwood kraft lignin to produce carbon fibers with superior properties, but the thermo-oxidative stabilization step required a long time due...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2015-06-01
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| Series: | Fibers |
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| Online Access: | http://www.mdpi.com/2079-6439/3/2/184 |
| _version_ | 1811300994692153344 |
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| author | Meng Zhang Jing Jin Amod A. Ogale |
| author_facet | Meng Zhang Jing Jin Amod A. Ogale |
| author_sort | Meng Zhang |
| collection | DOAJ |
| description | Production of high strength carbon fibers from bio-derived precursors is of topical interest. Recently, we reported on dry-spinning of a partially acetylated softwood kraft lignin to produce carbon fibers with superior properties, but the thermo-oxidative stabilization step required a long time due to a slow heating rate needed to prevent the fibers from being heated too rapidly and sticking to each other. Here we report a rapid strategy of dual UV-thermoxidative stabilization (crosslinking) of dry-spun lignin fibers that significantly reduces the stabilization time. The fibers undergo reaction close to the surface such that they can be subsequently thermally stabilized at a rapid heating rate without fibers fusing together, which reduces the total stabilization time significantly from 40 to 4 h. Consequently, the glass transition temperature of UV irradiated fibers was about 15 °C higher than that of fibers without UV treatment. Stabilized fibers were successfully carbonized at 1000 °C and resulting carbon fibers displayed a tensile strength of 900 ± 100 MPa, which is amongst the highest reported for carbon fibers derived from softwood lignin-based precursors. These results establish that UV irradiation is a rapid step that can effectively shorten the total stabilization time for production of lignin-derived carbon fibers. |
| first_indexed | 2024-04-13T07:00:49Z |
| format | Article |
| id | doaj.art-4ab61b1c688d49a086152f66b25d8bc3 |
| institution | Directory Open Access Journal |
| issn | 2079-6439 |
| language | English |
| last_indexed | 2024-04-13T07:00:49Z |
| publishDate | 2015-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Fibers |
| spelling | doaj.art-4ab61b1c688d49a086152f66b25d8bc32022-12-22T02:57:07ZengMDPI AGFibers2079-64392015-06-013218419610.3390/fib3020184fib3020184Carbon Fibers from UV-Assisted Stabilization of Lignin-Based PrecursorsMeng Zhang0Jing Jin1Amod A. Ogale2Chemical Engineering and Center for Advanced Engineering Fibers and Films, Clemson University, Clemson, SC 29634, USAChemical Engineering and Center for Advanced Engineering Fibers and Films, Clemson University, Clemson, SC 29634, USAChemical Engineering and Center for Advanced Engineering Fibers and Films, Clemson University, Clemson, SC 29634, USAProduction of high strength carbon fibers from bio-derived precursors is of topical interest. Recently, we reported on dry-spinning of a partially acetylated softwood kraft lignin to produce carbon fibers with superior properties, but the thermo-oxidative stabilization step required a long time due to a slow heating rate needed to prevent the fibers from being heated too rapidly and sticking to each other. Here we report a rapid strategy of dual UV-thermoxidative stabilization (crosslinking) of dry-spun lignin fibers that significantly reduces the stabilization time. The fibers undergo reaction close to the surface such that they can be subsequently thermally stabilized at a rapid heating rate without fibers fusing together, which reduces the total stabilization time significantly from 40 to 4 h. Consequently, the glass transition temperature of UV irradiated fibers was about 15 °C higher than that of fibers without UV treatment. Stabilized fibers were successfully carbonized at 1000 °C and resulting carbon fibers displayed a tensile strength of 900 ± 100 MPa, which is amongst the highest reported for carbon fibers derived from softwood lignin-based precursors. These results establish that UV irradiation is a rapid step that can effectively shorten the total stabilization time for production of lignin-derived carbon fibers.http://www.mdpi.com/2079-6439/3/2/184carbon fibersoftwood ligninUV irradiation |
| spellingShingle | Meng Zhang Jing Jin Amod A. Ogale Carbon Fibers from UV-Assisted Stabilization of Lignin-Based Precursors Fibers carbon fiber softwood lignin UV irradiation |
| title | Carbon Fibers from UV-Assisted Stabilization of Lignin-Based Precursors |
| title_full | Carbon Fibers from UV-Assisted Stabilization of Lignin-Based Precursors |
| title_fullStr | Carbon Fibers from UV-Assisted Stabilization of Lignin-Based Precursors |
| title_full_unstemmed | Carbon Fibers from UV-Assisted Stabilization of Lignin-Based Precursors |
| title_short | Carbon Fibers from UV-Assisted Stabilization of Lignin-Based Precursors |
| title_sort | carbon fibers from uv assisted stabilization of lignin based precursors |
| topic | carbon fiber softwood lignin UV irradiation |
| url | http://www.mdpi.com/2079-6439/3/2/184 |
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