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DC Field | Value | Language |
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dc.citation.startPage | 108452 | - |
dc.citation.title | COMPOSITES SCIENCE AND TECHNOLOGY | - |
dc.citation.volume | 200 | - |
dc.contributor.author | Lee, Jung-Eun | - |
dc.contributor.author | Kim, Yea Fun | - |
dc.contributor.author | Lee, Ga-Hyeun | - |
dc.contributor.author | Kim, Min Jeong | - |
dc.contributor.author | Eom, Youngho | - |
dc.contributor.author | Chae, Han Gi | - |
dc.date.accessioned | 2023-12-21T16:45:45Z | - |
dc.date.available | 2023-12-21T16:45:45Z | - |
dc.date.created | 2020-09-12 | - |
dc.date.issued | 2020-11 | - |
dc.description.abstract | Polyetherimide (PEI) and PEI/cellulose nanocrystal (CNC) fibers are dry-jet wet-spun in a draw ratio (DR) range of 2.8–7. The effect of CNC concentration (0–5 wt% with respect to polymer) on the mechanical and structural properties is also studied. At a DR of 7, control PEI fibers exhibit 466 MPa and 8.1 GPa of tensile strength and modulus, while those of PEI/CNC3 fibers are 409 MPa and 9.2 GPa, respectively, which are among the best properties reported so far for PEI-based materials. The tensile strengths of CNC-containing fibers are inferior to that of the control fiber. On the contrary, the PEI/CNC nanocomposite fibers show improved tensile moduli. Although the improvement in tensile moduli of polymer fibers by incorporating nanofillers is well-known phenomenon, the structural analysis reveals interesting orientation behavior of CNCs and PEI chains. The CNCs are readily aligned along the fiber axis due to their fibrillar morphology, and show a high degree of orientation in the as-spun fibers (fCNC, as-spun = 0.63), which can be further aligned upon drawing (fCNC, drawn = 0.75), whereas the PEI chains exhibit a low degree of orientation even at the maximum extent of drawing (fPEI, composite drawn = 0.10). This is even lower than that in the control fiber (fPEI, control drawn = 0.22), suggesting that the CNCs disturb PEI alignment despite of strong hydrogen bond between them. | - |
dc.identifier.bibliographicCitation | COMPOSITES SCIENCE AND TECHNOLOGY, v.200, pp.108452 | - |
dc.identifier.doi | 10.1016/j.compscitech.2020.108452 | - |
dc.identifier.issn | 0266-3538 | - |
dc.identifier.scopusid | 2-s2.0-85090720511 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/48174 | - |
dc.identifier.url | https://www.sciencedirect.com/science/article/pii/S0266353820322429 | - |
dc.identifier.wosid | 000580920800059 | - |
dc.language | 영어 | - |
dc.publisher | Pergamon Press Ltd. | - |
dc.title | The effect of cellulose nanocrystals (CNCs) on the microstructure of amorphous polyetherimide (PEI)-based nanocomposite fibers and its correlation with the mechanical properties | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Composites | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.type.docType | Article | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | Polyetherimide (PEI) | - |
dc.subject.keywordAuthor | Cellulose nanocrystal (CNC) | - |
dc.subject.keywordAuthor | Dry-jet wet spinning | - |
dc.subject.keywordAuthor | Nanocomposites fiber | - |
dc.subject.keywordPlus | STRAIN-INDUCED CRYSTALLIZATION | - |
dc.subject.keywordPlus | POLY(ETHER IMIDE) | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | ORIENTATION | - |
dc.subject.keywordPlus | MORPHOLOGY | - |
dc.subject.keywordPlus | OPTIMIZATION | - |
dc.subject.keywordPlus | DIFFRACTION | - |
dc.subject.keywordPlus | FABRICATION | - |
dc.subject.keywordPlus | MESOPHASE | - |
dc.subject.keywordPlus | MEMBRANES | - |
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