The alignment of AlN platelets in polymer matrix and its anisotropic thermal properties
The thermal conductivity of polymer composites can be enhanced by the vertical alignment of anisotropic aluminum nitride (AlN) platelet fillers in polymer matrices. The AlN platelets in polymer matrix were aligned in the direction of in-plane and out-of-plane by using the doctor blading and the lami...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2019-12-01
|
| Series: | Journal of Materiomics |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2352847819300516 |
| _version_ | 1797721793568440320 |
|---|---|
| author | Chang-Yeoul Kim Thi My Linh Dang Yaming Zhang Jian-Feng Yang Bo Wang |
| author_facet | Chang-Yeoul Kim Thi My Linh Dang Yaming Zhang Jian-Feng Yang Bo Wang |
| author_sort | Chang-Yeoul Kim |
| collection | DOAJ |
| description | The thermal conductivity of polymer composites can be enhanced by the vertical alignment of anisotropic aluminum nitride (AlN) platelet fillers in polymer matrices. The AlN platelets in polymer matrix were aligned in the direction of in-plane and out-of-plane by using the doctor blading and the lamination process. The alignment of AlN plates in the out-of-plane or the in-plane direction has been confirmed by XRD and FE-SEM investigations. The polymer composite with the out-of-plane aligned AlN platelets showed almost 1.5 times or 2 times higher thermal conductivity than those with the AlN spheres or the in-plane aligned AlN platelets at the same filler content, respectively. This result could be attributed to the improvement of thermal pathway generated along the plane of platelets and the decrease of interfaces between the filler and the polymer. Keywords: Thermal conductivity, Aluminum nitride plate, Polymer composite, Alignment, Out-of-direction, In-plane direction |
| first_indexed | 2024-03-12T09:38:22Z |
| format | Article |
| id | doaj.art-a69ec31a70cf4201b6e0cb3995f03271 |
| institution | Directory Open Access Journal |
| issn | 2352-8478 |
| language | English |
| last_indexed | 2024-03-12T09:38:22Z |
| publishDate | 2019-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materiomics |
| spelling | doaj.art-a69ec31a70cf4201b6e0cb3995f032712023-09-02T13:26:49ZengElsevierJournal of Materiomics2352-84782019-12-0154679687The alignment of AlN platelets in polymer matrix and its anisotropic thermal propertiesChang-Yeoul Kim0Thi My Linh Dang1Yaming Zhang2Jian-Feng Yang3Bo Wang4Nano-Convergence Materials Team Korea Institute of Ceramic Engineering and Technology, Jinju-si, Gyeongsangnam-do, 660-031, South Korea; Corresponding author.Nano-Convergence Materials Team Korea Institute of Ceramic Engineering and Technology, Jinju-si, Gyeongsangnam-do, 660-031, South KoreaState Key Laboratory of Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an, 71004, ChinaState Key Laboratory of Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an, 71004, ChinaState Key Laboratory of Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an, 71004, ChinaThe thermal conductivity of polymer composites can be enhanced by the vertical alignment of anisotropic aluminum nitride (AlN) platelet fillers in polymer matrices. The AlN platelets in polymer matrix were aligned in the direction of in-plane and out-of-plane by using the doctor blading and the lamination process. The alignment of AlN plates in the out-of-plane or the in-plane direction has been confirmed by XRD and FE-SEM investigations. The polymer composite with the out-of-plane aligned AlN platelets showed almost 1.5 times or 2 times higher thermal conductivity than those with the AlN spheres or the in-plane aligned AlN platelets at the same filler content, respectively. This result could be attributed to the improvement of thermal pathway generated along the plane of platelets and the decrease of interfaces between the filler and the polymer. Keywords: Thermal conductivity, Aluminum nitride plate, Polymer composite, Alignment, Out-of-direction, In-plane directionhttp://www.sciencedirect.com/science/article/pii/S2352847819300516 |
| spellingShingle | Chang-Yeoul Kim Thi My Linh Dang Yaming Zhang Jian-Feng Yang Bo Wang The alignment of AlN platelets in polymer matrix and its anisotropic thermal properties Journal of Materiomics |
| title | The alignment of AlN platelets in polymer matrix and its anisotropic thermal properties |
| title_full | The alignment of AlN platelets in polymer matrix and its anisotropic thermal properties |
| title_fullStr | The alignment of AlN platelets in polymer matrix and its anisotropic thermal properties |
| title_full_unstemmed | The alignment of AlN platelets in polymer matrix and its anisotropic thermal properties |
| title_short | The alignment of AlN platelets in polymer matrix and its anisotropic thermal properties |
| title_sort | alignment of aln platelets in polymer matrix and its anisotropic thermal properties |
| url | http://www.sciencedirect.com/science/article/pii/S2352847819300516 |
| work_keys_str_mv | AT changyeoulkim thealignmentofalnplateletsinpolymermatrixanditsanisotropicthermalproperties AT thimylinhdang thealignmentofalnplateletsinpolymermatrixanditsanisotropicthermalproperties AT yamingzhang thealignmentofalnplateletsinpolymermatrixanditsanisotropicthermalproperties AT jianfengyang thealignmentofalnplateletsinpolymermatrixanditsanisotropicthermalproperties AT bowang thealignmentofalnplateletsinpolymermatrixanditsanisotropicthermalproperties AT changyeoulkim alignmentofalnplateletsinpolymermatrixanditsanisotropicthermalproperties AT thimylinhdang alignmentofalnplateletsinpolymermatrixanditsanisotropicthermalproperties AT yamingzhang alignmentofalnplateletsinpolymermatrixanditsanisotropicthermalproperties AT jianfengyang alignmentofalnplateletsinpolymermatrixanditsanisotropicthermalproperties AT bowang alignmentofalnplateletsinpolymermatrixanditsanisotropicthermalproperties |