Effect of solar radiation on the properties of aramid fibers and composites
K49 and F-Ⅲ two kinds of different structure aramid fibers and their 5224A epoxy matrix composites were selected. The tension strength of single fiber, FTIR, XPS, DSC, SEM,mechanical and dielectrical properties was used to characterize the physicochemical properties of fibers and structure/wave-tran...
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| Format: | Article |
| Language: | zho |
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Journal of Materials Engineering
2019-04-01
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| Series: | Cailiao gongcheng |
| Subjects: | |
| Online Access: | http://jme.biam.ac.cn/CN/Y2019/V47/I4/39 |
| _version_ | 1828077148970156032 |
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| author | LI Ya-feng LI Song-ming HEI Yan-wei XING Li-ying CHEN Xiang-bao |
| author_facet | LI Ya-feng LI Song-ming HEI Yan-wei XING Li-ying CHEN Xiang-bao |
| author_sort | LI Ya-feng |
| collection | DOAJ |
| description | K49 and F-Ⅲ two kinds of different structure aramid fibers and their 5224A epoxy matrix composites were selected. The tension strength of single fiber, FTIR, XPS, DSC, SEM,mechanical and dielectrical properties was used to characterize the physicochemical properties of fibers and structure/wave-transmitting properties of composites. It is found that different fibers result in different changes under the same solar radiation condition. The obvious "self-shield" phenomenon is observed in K49 fibers,but there's no proof that F-Ⅲ has the same ability. A tension strength conservation rate of 82% is obtained after 400 hours solar radiation. F-Ⅲ fibers, by contrast, are sensitive to solar radiation and a conservation rate of 50% is obtained at the same condition. The decreased tension strength is due to physicochemical degradation on the surface of the fibers and the decrease of crystallinity degree. It is proved that solar radiation has no obvious effect on the properties of composites. The flexibility, ILSS and dielectric properties has little change. The tensile strength is slightly improved, and the compression strength is slightly decreased. A decrease of 11.8% is obse-rved on K49/5224A composites and 6.6% for that of F-Ⅲ/5224A. It is because of that the degrad-ation occurred on the surface of composites. |
| first_indexed | 2024-04-11T02:25:10Z |
| format | Article |
| id | doaj.art-c782ff5290494f63856c8d1b244345db |
| institution | Directory Open Access Journal |
| issn | 1001-4381 1001-4381 |
| language | zho |
| last_indexed | 2024-04-11T02:25:10Z |
| publishDate | 2019-04-01 |
| publisher | Journal of Materials Engineering |
| record_format | Article |
| series | Cailiao gongcheng |
| spelling | doaj.art-c782ff5290494f63856c8d1b244345db2023-01-02T22:54:30ZzhoJournal of Materials EngineeringCailiao gongcheng1001-43811001-43812019-04-01474394610.11868/j.issn.1001-4381.2017.001420201904001420Effect of solar radiation on the properties of aramid fibers and compositesLI Ya-feng0LI Song-ming1HEI Yan-wei2XING Li-ying3CHEN Xiang-bao4AVIC Composite Technology Center, Beijing 101300, ChinaAVIC Composite Technology Center, Beijing 101300, ChinaAVIC Composite Technology Center, Beijing 101300, ChinaAVIC Composite Technology Center, Beijing 101300, ChinaKey Laboratory of Advanced Composites, AECC Beijing Institute of Aeronautical Materials, Beijing 100095, ChinaK49 and F-Ⅲ two kinds of different structure aramid fibers and their 5224A epoxy matrix composites were selected. The tension strength of single fiber, FTIR, XPS, DSC, SEM,mechanical and dielectrical properties was used to characterize the physicochemical properties of fibers and structure/wave-transmitting properties of composites. It is found that different fibers result in different changes under the same solar radiation condition. The obvious "self-shield" phenomenon is observed in K49 fibers,but there's no proof that F-Ⅲ has the same ability. A tension strength conservation rate of 82% is obtained after 400 hours solar radiation. F-Ⅲ fibers, by contrast, are sensitive to solar radiation and a conservation rate of 50% is obtained at the same condition. The decreased tension strength is due to physicochemical degradation on the surface of the fibers and the decrease of crystallinity degree. It is proved that solar radiation has no obvious effect on the properties of composites. The flexibility, ILSS and dielectric properties has little change. The tensile strength is slightly improved, and the compression strength is slightly decreased. A decrease of 11.8% is obse-rved on K49/5224A composites and 6.6% for that of F-Ⅲ/5224A. It is because of that the degrad-ation occurred on the surface of composites.http://jme.biam.ac.cn/CN/Y2019/V47/I4/39aramid fibercompositessolar radiationmechanical propertydielectric property |
| spellingShingle | LI Ya-feng LI Song-ming HEI Yan-wei XING Li-ying CHEN Xiang-bao Effect of solar radiation on the properties of aramid fibers and composites Cailiao gongcheng aramid fiber composites solar radiation mechanical property dielectric property |
| title | Effect of solar radiation on the properties of aramid fibers and composites |
| title_full | Effect of solar radiation on the properties of aramid fibers and composites |
| title_fullStr | Effect of solar radiation on the properties of aramid fibers and composites |
| title_full_unstemmed | Effect of solar radiation on the properties of aramid fibers and composites |
| title_short | Effect of solar radiation on the properties of aramid fibers and composites |
| title_sort | effect of solar radiation on the properties of aramid fibers and composites |
| topic | aramid fiber composites solar radiation mechanical property dielectric property |
| url | http://jme.biam.ac.cn/CN/Y2019/V47/I4/39 |
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