Interfacial Modification and Dispersion of Short Carbon Fiber and the Properties of Composite Papers as Gas Diffusion Layer for Proton Exchange Membrane Fuel Cell (PEMFC)
Short carbon fibers (SCF) were modified with oxidation and coupling treatment to improve their water-wettability and bonding properties. Four types of dispersants were studied and discussed. Short carbon fibers/plant fiber (PF) composite papers were prepared by papermaking techniques. Scanning electro...
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| Format: | Article |
| Language: | English |
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North Carolina State University
2014-11-01
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| Series: | BioResources |
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| Online Access: | http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_10_1_145_Hu_Interfacial_Modification_Carbon_Fiber |
| _version_ | 1818394761416933376 |
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| author | Zhijun Hu Baojian Liu Jiang Lin Guilin Hu Lijun Wang Xuejin Zhang |
| author_facet | Zhijun Hu Baojian Liu Jiang Lin Guilin Hu Lijun Wang Xuejin Zhang |
| author_sort | Zhijun Hu |
| collection | DOAJ |
| description | Short carbon fibers (SCF) were modified with oxidation and coupling treatment to improve their water-wettability and bonding properties. Four types of dispersants were studied and discussed. Short carbon fibers/plant fiber (PF) composite papers were prepared by papermaking techniques. Scanning electron microscopy (SEM) and tests to determine zeta potential, absorbance, tensile index, and conductivity were carried out to investigate the modified effect of SCF and the interfacial properties. Modification experimental results showed that the surface grooves were deepened and new superficial grooves were generated by the liquid acid oxidation. The reaction with the silane coupling agent provided higher density and more uniform distribution on the SCF surface than that of organic titanate, and it obviously increased the roughness and the absolute value of zeta potential. After modification, the hydrophilic properties and dispersion in aqueous solutions were improved, the SCFs could form a good mechanical grip with plant fibers, and the conductivity and physical strength of SCF/PF composite papers were enhanced. It was shown that there was obvious adhesive binding at the fiber overlap nodes by the SEM analysis. It was confirmed that the improvement of physical properties of composite paper can be ascribed to the interfacial enhancement. |
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| id | doaj.art-ecf13d18655a4e61b4a5d6fb649e5061 |
| institution | Directory Open Access Journal |
| issn | 1930-2126 1930-2126 |
| language | English |
| last_indexed | 2024-12-14T06:06:21Z |
| publishDate | 2014-11-01 |
| publisher | North Carolina State University |
| record_format | Article |
| series | BioResources |
| spelling | doaj.art-ecf13d18655a4e61b4a5d6fb649e50612022-12-21T23:14:17ZengNorth Carolina State UniversityBioResources1930-21261930-21262014-11-0110114515410.15376/biores.10.1.145-154Interfacial Modification and Dispersion of Short Carbon Fiber and the Properties of Composite Papers as Gas Diffusion Layer for Proton Exchange Membrane Fuel Cell (PEMFC)Zhijun Hu0Baojian LiuJiang Lin1Guilin Hu2Lijun Wang3Xuejin Zhang4 Zhejiang University of Science and Technology; China Zhejiang University of Science and Technology; ChinaSchool of Light Industry, Zhejiang University of Science and Technology, NO.318 Liu He Road, Hangzhou City, Zhejiang Prov. 310023, ChinaSchool of Light Industry, Zhejiang University of Science and Technology, NO.318 Liu He Road, Hangzhou City, Zhejiang Prov. 310023, ChinaSchool of Light Industry, Zhejiang University of Science and Technology, NO.318 Liu He Road, Hangzhou City, Zhejiang Prov. 310023, ChinaShort carbon fibers (SCF) were modified with oxidation and coupling treatment to improve their water-wettability and bonding properties. Four types of dispersants were studied and discussed. Short carbon fibers/plant fiber (PF) composite papers were prepared by papermaking techniques. Scanning electron microscopy (SEM) and tests to determine zeta potential, absorbance, tensile index, and conductivity were carried out to investigate the modified effect of SCF and the interfacial properties. Modification experimental results showed that the surface grooves were deepened and new superficial grooves were generated by the liquid acid oxidation. The reaction with the silane coupling agent provided higher density and more uniform distribution on the SCF surface than that of organic titanate, and it obviously increased the roughness and the absolute value of zeta potential. After modification, the hydrophilic properties and dispersion in aqueous solutions were improved, the SCFs could form a good mechanical grip with plant fibers, and the conductivity and physical strength of SCF/PF composite papers were enhanced. It was shown that there was obvious adhesive binding at the fiber overlap nodes by the SEM analysis. It was confirmed that the improvement of physical properties of composite paper can be ascribed to the interfacial enhancement.http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_10_1_145_Hu_Interfacial_Modification_Carbon_FiberShort carbon fiberPlant fiberInterfacial modificationPaperDispersion |
| spellingShingle | Zhijun Hu Baojian Liu Jiang Lin Guilin Hu Lijun Wang Xuejin Zhang Interfacial Modification and Dispersion of Short Carbon Fiber and the Properties of Composite Papers as Gas Diffusion Layer for Proton Exchange Membrane Fuel Cell (PEMFC) BioResources Short carbon fiber Plant fiber Interfacial modification Paper Dispersion |
| title | Interfacial Modification and Dispersion of Short Carbon Fiber and the Properties of Composite Papers as Gas Diffusion Layer for Proton Exchange Membrane Fuel Cell (PEMFC) |
| title_full | Interfacial Modification and Dispersion of Short Carbon Fiber and the Properties of Composite Papers as Gas Diffusion Layer for Proton Exchange Membrane Fuel Cell (PEMFC) |
| title_fullStr | Interfacial Modification and Dispersion of Short Carbon Fiber and the Properties of Composite Papers as Gas Diffusion Layer for Proton Exchange Membrane Fuel Cell (PEMFC) |
| title_full_unstemmed | Interfacial Modification and Dispersion of Short Carbon Fiber and the Properties of Composite Papers as Gas Diffusion Layer for Proton Exchange Membrane Fuel Cell (PEMFC) |
| title_short | Interfacial Modification and Dispersion of Short Carbon Fiber and the Properties of Composite Papers as Gas Diffusion Layer for Proton Exchange Membrane Fuel Cell (PEMFC) |
| title_sort | interfacial modification and dispersion of short carbon fiber and the properties of composite papers as gas diffusion layer for proton exchange membrane fuel cell pemfc |
| topic | Short carbon fiber Plant fiber Interfacial modification Paper Dispersion |
| url | http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_10_1_145_Hu_Interfacial_Modification_Carbon_Fiber |
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