Synergistically improved thermal conductivity of polyamide-6 with low melting temperature metal and graphite
Low melting temperature metal (LMTM)-tin (Sn) was introduced into polyamide-6 (PA6) and PA6/graphite composites respectively to improve the thermal conductivity of PA6 by melt processing (extruding and injection molding). After introducing Sn, the thermal conductivity of PA6/Sn was nearly constant b...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Budapest University of Technology
2016-08-01
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| Series: | eXPRESS Polymer Letters |
| Subjects: | |
| Online Access: | http://www.expresspolymlett.com/letolt.php?file=EPL-0006987&mi=cd |
| _version_ | 1818056962807431168 |
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| author | Y. C. Jia H. He P. Yu J. Chen X. L. Lai |
| author_facet | Y. C. Jia H. He P. Yu J. Chen X. L. Lai |
| author_sort | Y. C. Jia |
| collection | DOAJ |
| description | Low melting temperature metal (LMTM)-tin (Sn) was introduced into polyamide-6 (PA6) and PA6/graphite composites respectively to improve the thermal conductivity of PA6 by melt processing (extruding and injection molding). After introducing Sn, the thermal conductivity of PA6/Sn was nearly constant because of the serious agglomeration of Sn. However, when 20 wt% (5.4 vol%) of Sn was added into PA6 containing 50 wt% (33.3 vol%) of graphite, the thermal conductivity of the composite was dramatically increased to 5.364 versus 1.852 W·(m·K)–1 for the PA6/graphite composite, which suggests that the incorporation of graphite and Sn have a significant synergistic effect on the thermal conductivity improvement of PA6. What is more, the electrical conductivity of the composite increased nearly 8 orders of magnitudes after introducing both graphite and Sn. Characterization of microstructure and energy dispersive spectrum analysis (EDS) indicates that the dispersion of Sn in PA6/graphite/Sn was much more uniform than that of PA6/Sn composite. According to Differential Scanning Calorimetry measurement and EDS, the uniform dispersion of Sn in PA6/graphite/Sn and the high thermal conductivity of PA6/graphite/Sn are speculated to be related with the electron transfer between graphite and Sn, which makes Sn distribute evenly around the graphite layers. |
| first_indexed | 2024-12-10T12:37:11Z |
| format | Article |
| id | doaj.art-11718e3de6034b1a8c24243f3b5731d0 |
| institution | Directory Open Access Journal |
| issn | 1788-618X |
| language | English |
| last_indexed | 2024-12-10T12:37:11Z |
| publishDate | 2016-08-01 |
| publisher | Budapest University of Technology |
| record_format | Article |
| series | eXPRESS Polymer Letters |
| spelling | doaj.art-11718e3de6034b1a8c24243f3b5731d02022-12-22T01:48:37ZengBudapest University of TechnologyeXPRESS Polymer Letters1788-618X2016-08-0110867969210.3144/expresspolymlett.2016.61Synergistically improved thermal conductivity of polyamide-6 with low melting temperature metal and graphiteY. C. JiaH. HeP. YuJ. ChenX. L. LaiLow melting temperature metal (LMTM)-tin (Sn) was introduced into polyamide-6 (PA6) and PA6/graphite composites respectively to improve the thermal conductivity of PA6 by melt processing (extruding and injection molding). After introducing Sn, the thermal conductivity of PA6/Sn was nearly constant because of the serious agglomeration of Sn. However, when 20 wt% (5.4 vol%) of Sn was added into PA6 containing 50 wt% (33.3 vol%) of graphite, the thermal conductivity of the composite was dramatically increased to 5.364 versus 1.852 W·(m·K)–1 for the PA6/graphite composite, which suggests that the incorporation of graphite and Sn have a significant synergistic effect on the thermal conductivity improvement of PA6. What is more, the electrical conductivity of the composite increased nearly 8 orders of magnitudes after introducing both graphite and Sn. Characterization of microstructure and energy dispersive spectrum analysis (EDS) indicates that the dispersion of Sn in PA6/graphite/Sn was much more uniform than that of PA6/Sn composite. According to Differential Scanning Calorimetry measurement and EDS, the uniform dispersion of Sn in PA6/graphite/Sn and the high thermal conductivity of PA6/graphite/Sn are speculated to be related with the electron transfer between graphite and Sn, which makes Sn distribute evenly around the graphite layers.http://www.expresspolymlett.com/letolt.php?file=EPL-0006987&mi=cdPolymer compositeslow melting temperature metaltingraphitethermal conductivity |
| spellingShingle | Y. C. Jia H. He P. Yu J. Chen X. L. Lai Synergistically improved thermal conductivity of polyamide-6 with low melting temperature metal and graphite eXPRESS Polymer Letters Polymer composites low melting temperature metal tin graphite thermal conductivity |
| title | Synergistically improved thermal conductivity of polyamide-6 with low melting temperature metal and graphite |
| title_full | Synergistically improved thermal conductivity of polyamide-6 with low melting temperature metal and graphite |
| title_fullStr | Synergistically improved thermal conductivity of polyamide-6 with low melting temperature metal and graphite |
| title_full_unstemmed | Synergistically improved thermal conductivity of polyamide-6 with low melting temperature metal and graphite |
| title_short | Synergistically improved thermal conductivity of polyamide-6 with low melting temperature metal and graphite |
| title_sort | synergistically improved thermal conductivity of polyamide 6 with low melting temperature metal and graphite |
| topic | Polymer composites low melting temperature metal tin graphite thermal conductivity |
| url | http://www.expresspolymlett.com/letolt.php?file=EPL-0006987&mi=cd |
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