Chitin Fiber and Chitosan 3D Composite Rods
Chitin fiber (CHF) and chitosan (CS) 3D composite rods with layer-by-layer structure were constructed by in situ precipitation method. CHF could not be dissolved in acetic acid aqueous solution, but CS could be dissolved due to the different deacetylation degree (D.D) between CHF and CS. CHF with un...
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| Format: | Article |
| Language: | English |
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Wiley
2010-01-01
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| Series: | International Journal of Polymer Science |
| Online Access: | http://dx.doi.org/10.1155/2010/369759 |
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| _version_ | 1832561521901699072 |
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| author | Zhengke Wang Qiaoling Hu Lei Cai |
| author_facet | Zhengke Wang Qiaoling Hu Lei Cai |
| author_sort | Zhengke Wang |
| collection | DOAJ |
| description | Chitin fiber (CHF) and chitosan (CS) 3D composite rods with layer-by-layer structure were constructed by in situ precipitation method. CHF could not be dissolved in acetic acid aqueous solution, but CS could be dissolved due to the different deacetylation degree (D.D) between CHF and CS. CHF with undulate surfaces could be observed using SEM to demonstrate that the sufficiently rough surfaces and edges of the fiber could enhance the mechanical combining stress between fiber and matrix. XRD indicated that the crystallinity of CHF/CS composites decreased and CS crystal plane d-spacing of CHF/CS composites became larger than that of pure CS rod. TG analysis showed that mixing a little amount of CHF could enhance thermal stability of CS rod, but when the content of CHF was higher than the optimum amount, its thermal stability decreased. When 0.5% CHF was added into CS matrix, the bending strength and bending modulus of the composite rods arrived at 114.2 MPa and 5.2 GPa, respectively, increased by 23.6% and 26.8% compared with pure CS rods, indicating that CHF/CS composite rods could be a better candidate for bone fracture internal fixation. |
| format | Article |
| id | doaj-art-b747d8857fa649fcad842c2782f3dfe7 |
| institution | Kabale University |
| issn | 1687-9422 1687-9430 |
| language | English |
| publishDate | 2010-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Polymer Science |
| spelling | doaj-art-b747d8857fa649fcad842c2782f3dfe72025-02-03T01:24:52ZengWileyInternational Journal of Polymer Science1687-94221687-94302010-01-01201010.1155/2010/369759369759Chitin Fiber and Chitosan 3D Composite RodsZhengke Wang0Qiaoling Hu1Lei Cai2Department of Polymer Science and Engineering, Key Laboratory of Macromolecule Synthesis and Functionalization, Zhejiang University, Ministry of Education, Hangzhou 310027, ChinaDepartment of Polymer Science and Engineering, Key Laboratory of Macromolecule Synthesis and Functionalization, Zhejiang University, Ministry of Education, Hangzhou 310027, ChinaDepartment of Materials Science and Engineering, The University of Tennessee, Knoxville, TN 37996, USAChitin fiber (CHF) and chitosan (CS) 3D composite rods with layer-by-layer structure were constructed by in situ precipitation method. CHF could not be dissolved in acetic acid aqueous solution, but CS could be dissolved due to the different deacetylation degree (D.D) between CHF and CS. CHF with undulate surfaces could be observed using SEM to demonstrate that the sufficiently rough surfaces and edges of the fiber could enhance the mechanical combining stress between fiber and matrix. XRD indicated that the crystallinity of CHF/CS composites decreased and CS crystal plane d-spacing of CHF/CS composites became larger than that of pure CS rod. TG analysis showed that mixing a little amount of CHF could enhance thermal stability of CS rod, but when the content of CHF was higher than the optimum amount, its thermal stability decreased. When 0.5% CHF was added into CS matrix, the bending strength and bending modulus of the composite rods arrived at 114.2 MPa and 5.2 GPa, respectively, increased by 23.6% and 26.8% compared with pure CS rods, indicating that CHF/CS composite rods could be a better candidate for bone fracture internal fixation.http://dx.doi.org/10.1155/2010/369759 |
| spellingShingle | Zhengke Wang Qiaoling Hu Lei Cai Chitin Fiber and Chitosan 3D Composite Rods International Journal of Polymer Science |
| title | Chitin Fiber and Chitosan 3D Composite Rods |
| title_full | Chitin Fiber and Chitosan 3D Composite Rods |
| title_fullStr | Chitin Fiber and Chitosan 3D Composite Rods |
| title_full_unstemmed | Chitin Fiber and Chitosan 3D Composite Rods |
| title_short | Chitin Fiber and Chitosan 3D Composite Rods |
| title_sort | chitin fiber and chitosan 3d composite rods |
| url | http://dx.doi.org/10.1155/2010/369759 |
| work_keys_str_mv | AT zhengkewang chitinfiberandchitosan3dcompositerods AT qiaolinghu chitinfiberandchitosan3dcompositerods AT leicai chitinfiberandchitosan3dcompositerods |