Investigation of Surface Treatment of Carbon Fiber by Dynamic Method in the Polyurethane Composites
Polyacrylonitrile (PAN)-based carbon fibers were chemically modified with a different ratio of Sulfuric acid (SA) to Nitric acid (NA), then reinforced Polyurethane (PU) composites in the presence of carbon fibers were prepared. The structural and surface characteristics of the modified carbon fibers...
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| Format: | Article |
| Language: | English |
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University of Tehran
2022-06-01
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| Series: | Journal of Chemical and Petroleum Engineering |
| Subjects: | |
| Online Access: | https://jchpe.ut.ac.ir/article_85479.html |
| _version_ | 1811294111236358144 |
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| author | Mohamad Reza Pourhossainy Amir Kaveh Morteza Ahmadi Lashaki Mahdi Jafari Omid Moini Jazani |
| author_facet | Mohamad Reza Pourhossainy Amir Kaveh Morteza Ahmadi Lashaki Mahdi Jafari Omid Moini Jazani |
| author_sort | Mohamad Reza Pourhossainy |
| collection | DOAJ |
| description | Polyacrylonitrile (PAN)-based carbon fibers were chemically modified with a different ratio of Sulfuric acid (SA) to Nitric acid (NA), then reinforced Polyurethane (PU) composites in the presence of carbon fibers were prepared. The structural and surface characteristics of the modified carbon fibers were investigated by scanning electron microscopy (SEM), Fourier transforms infrared spectroscopy (FTIR), and X-ray diffraction (XRD). The FTIR results showed the presence of the carbonyl groups in a higher ratio of NA and the formation of carboxyl groups in a lower ratio of NA. The interaction between carbon fiber and PU matrix was studied by the dynamic mechanical thermal analysis (DMTA) method. The DMTA results showed with increasing carbon fiber/PU matrix interaction, the intensity of glass transition temperature decreased. Matching the DMTA results with the power-law model and Cole-Cole diagram showed that the process of carbon fiber modification can increase the amount of chain with a long relaxation time in the PU matrix. |
| first_indexed | 2024-04-13T05:11:45Z |
| format | Article |
| id | doaj.art-2d1802fd49dd4f1ca487e7174700c05c |
| institution | Directory Open Access Journal |
| issn | 2423-673X 2423-6721 |
| language | English |
| last_indexed | 2024-04-13T05:11:45Z |
| publishDate | 2022-06-01 |
| publisher | University of Tehran |
| record_format | Article |
| series | Journal of Chemical and Petroleum Engineering |
| spelling | doaj.art-2d1802fd49dd4f1ca487e7174700c05c2022-12-22T03:01:00ZengUniversity of TehranJournal of Chemical and Petroleum Engineering2423-673X2423-67212022-06-015613752doi:10.22059/JCHPE.2021.332371.1367Investigation of Surface Treatment of Carbon Fiber by Dynamic Method in the Polyurethane CompositesMohamad Reza Pourhossainy0Amir Kaveh1Morteza Ahmadi Lashaki2Mahdi Jafari3Omid Moini Jazani 4Faculty of Materials and Manufacturing Engineering, Malek Ashtar University of Technology, Tehran, IranDepartment of Polymer Engineering, Amirkabir University of Technology, Tehran, IranDepartment of Chemical Engineering, Iran University of Science & Technology, Tehran, IranDepartment of Aerospace engineering, Malek Ashtar University of Technology, Tehran, IranDepartment of Chemical Engineering, Faculty of Engineering, University of Isfahan, Isfahan, IranPolyacrylonitrile (PAN)-based carbon fibers were chemically modified with a different ratio of Sulfuric acid (SA) to Nitric acid (NA), then reinforced Polyurethane (PU) composites in the presence of carbon fibers were prepared. The structural and surface characteristics of the modified carbon fibers were investigated by scanning electron microscopy (SEM), Fourier transforms infrared spectroscopy (FTIR), and X-ray diffraction (XRD). The FTIR results showed the presence of the carbonyl groups in a higher ratio of NA and the formation of carboxyl groups in a lower ratio of NA. The interaction between carbon fiber and PU matrix was studied by the dynamic mechanical thermal analysis (DMTA) method. The DMTA results showed with increasing carbon fiber/PU matrix interaction, the intensity of glass transition temperature decreased. Matching the DMTA results with the power-law model and Cole-Cole diagram showed that the process of carbon fiber modification can increase the amount of chain with a long relaxation time in the PU matrix.https://jchpe.ut.ac.ir/article_85479.htmlchemical treatmentcompositedynamic mechanical thermal analysisrelaxation time |
| spellingShingle | Mohamad Reza Pourhossainy Amir Kaveh Morteza Ahmadi Lashaki Mahdi Jafari Omid Moini Jazani Investigation of Surface Treatment of Carbon Fiber by Dynamic Method in the Polyurethane Composites Journal of Chemical and Petroleum Engineering chemical treatment composite dynamic mechanical thermal analysis relaxation time |
| title | Investigation of Surface Treatment of Carbon Fiber by Dynamic Method in the Polyurethane Composites |
| title_full | Investigation of Surface Treatment of Carbon Fiber by Dynamic Method in the Polyurethane Composites |
| title_fullStr | Investigation of Surface Treatment of Carbon Fiber by Dynamic Method in the Polyurethane Composites |
| title_full_unstemmed | Investigation of Surface Treatment of Carbon Fiber by Dynamic Method in the Polyurethane Composites |
| title_short | Investigation of Surface Treatment of Carbon Fiber by Dynamic Method in the Polyurethane Composites |
| title_sort | investigation of surface treatment of carbon fiber by dynamic method in the polyurethane composites |
| topic | chemical treatment composite dynamic mechanical thermal analysis relaxation time |
| url | https://jchpe.ut.ac.ir/article_85479.html |
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