Enhancing Thermal Conductivity of Polyvinylidene Fluoride Composites by Carbon Fiber: Length Effect of the Filler
Thermally conductive polyvinylidene fluoride (PVDF) composites were prepared by incorporating carbon fibers (CFs) with different lengths (286.6 ± 7.1 and 150.0 ± 2.3 µm) via cold pressing, followed by sintering. The length effects of the CF on the thermal conductivity, polymer crystallization behavi...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-10-01
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| Series: | Polymers |
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| Online Access: | https://www.mdpi.com/2073-4360/14/21/4599 |
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| author | Guoqing Yi Jingliang Li Luke C. Henderson Weiwei Lei Lian Du Shuaifei Zhao |
| author_facet | Guoqing Yi Jingliang Li Luke C. Henderson Weiwei Lei Lian Du Shuaifei Zhao |
| author_sort | Guoqing Yi |
| collection | DOAJ |
| description | Thermally conductive polyvinylidene fluoride (PVDF) composites were prepared by incorporating carbon fibers (CFs) with different lengths (286.6 ± 7.1 and 150.0 ± 2.3 µm) via cold pressing, followed by sintering. The length effects of the CF on the thermal conductivity, polymer crystallization behaviors, and mechanical properties of the PVDF composites were studied. The through-plane thermal conductivity of the PVDF composites increased significantly with the rise in CF loadings. The highest thermal conductivity of 2.89 W/(m∙K) was achieved for the PVDF composites containing 40 wt.% shorter CFs, ~17 times higher than that of the pure PVDF (~0.17 W/(m∙K)). The shorter CFs had more pronounced thermal conductive enhancement effects than the original longer CFs at higher filler loadings. CFs increased the storage modulus and the glass transition temperature of the PVDF. This work provides a new way to develop thermally conductive, mechanically, and chemically stable polymer composites by introducing CFs with different lengths. |
| first_indexed | 2024-03-09T18:42:57Z |
| format | Article |
| id | doaj.art-570eb0f70f704a8c8e6e1cde1bad7467 |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-09T18:42:57Z |
| publishDate | 2022-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-570eb0f70f704a8c8e6e1cde1bad74672023-11-24T06:28:51ZengMDPI AGPolymers2073-43602022-10-011421459910.3390/polym14214599Enhancing Thermal Conductivity of Polyvinylidene Fluoride Composites by Carbon Fiber: Length Effect of the FillerGuoqing Yi0Jingliang Li1Luke C. Henderson2Weiwei Lei3Lian Du4Shuaifei Zhao5Institute for Frontier Materials, Deakin University, Geelong, VIC 3216, AustraliaInstitute for Frontier Materials, Deakin University, Geelong, VIC 3216, AustraliaInstitute for Frontier Materials, Deakin University, Geelong, VIC 3216, AustraliaInstitute for Frontier Materials, Deakin University, Geelong, VIC 3216, AustraliaNanjing CAS Bidun Newmem Technology Co., Ltd., Nanjing 210061, ChinaInstitute for Frontier Materials, Deakin University, Geelong, VIC 3216, AustraliaThermally conductive polyvinylidene fluoride (PVDF) composites were prepared by incorporating carbon fibers (CFs) with different lengths (286.6 ± 7.1 and 150.0 ± 2.3 µm) via cold pressing, followed by sintering. The length effects of the CF on the thermal conductivity, polymer crystallization behaviors, and mechanical properties of the PVDF composites were studied. The through-plane thermal conductivity of the PVDF composites increased significantly with the rise in CF loadings. The highest thermal conductivity of 2.89 W/(m∙K) was achieved for the PVDF composites containing 40 wt.% shorter CFs, ~17 times higher than that of the pure PVDF (~0.17 W/(m∙K)). The shorter CFs had more pronounced thermal conductive enhancement effects than the original longer CFs at higher filler loadings. CFs increased the storage modulus and the glass transition temperature of the PVDF. This work provides a new way to develop thermally conductive, mechanically, and chemically stable polymer composites by introducing CFs with different lengths.https://www.mdpi.com/2073-4360/14/21/4599polyvinylidene fluoridecarbon fiberpolymer compositesthermal conductivity |
| spellingShingle | Guoqing Yi Jingliang Li Luke C. Henderson Weiwei Lei Lian Du Shuaifei Zhao Enhancing Thermal Conductivity of Polyvinylidene Fluoride Composites by Carbon Fiber: Length Effect of the Filler Polymers polyvinylidene fluoride carbon fiber polymer composites thermal conductivity |
| title | Enhancing Thermal Conductivity of Polyvinylidene Fluoride Composites by Carbon Fiber: Length Effect of the Filler |
| title_full | Enhancing Thermal Conductivity of Polyvinylidene Fluoride Composites by Carbon Fiber: Length Effect of the Filler |
| title_fullStr | Enhancing Thermal Conductivity of Polyvinylidene Fluoride Composites by Carbon Fiber: Length Effect of the Filler |
| title_full_unstemmed | Enhancing Thermal Conductivity of Polyvinylidene Fluoride Composites by Carbon Fiber: Length Effect of the Filler |
| title_short | Enhancing Thermal Conductivity of Polyvinylidene Fluoride Composites by Carbon Fiber: Length Effect of the Filler |
| title_sort | enhancing thermal conductivity of polyvinylidene fluoride composites by carbon fiber length effect of the filler |
| topic | polyvinylidene fluoride carbon fiber polymer composites thermal conductivity |
| url | https://www.mdpi.com/2073-4360/14/21/4599 |
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