Promoting h-BN dispersion in cellulose-based composite by lignosulfonate for regulatable effectual thermal management
Hexagonal boron nitride (h-BN) is an excellent thermally conductive and electrically insulative material. However, the formation of heat transfer pathways of h-BN in thermal interface materials is restricted due to its poor aqueous dispersity. Herein, water-soluble lignosulfonate (LS) is used to pro...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2022-02-01
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| Series: | Materials & Design |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S0264127521009345 |
| _version_ | 1828864708200890368 |
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| author | Xiu Wang Mengya Sun Ruibin Wang Liang Jiao Huiyang Bian Hongqi Dai |
| author_facet | Xiu Wang Mengya Sun Ruibin Wang Liang Jiao Huiyang Bian Hongqi Dai |
| author_sort | Xiu Wang |
| collection | DOAJ |
| description | Hexagonal boron nitride (h-BN) is an excellent thermally conductive and electrically insulative material. However, the formation of heat transfer pathways of h-BN in thermal interface materials is restricted due to its poor aqueous dispersity. Herein, water-soluble lignosulfonate (LS) is used to promote the dispersion of h-BN, the phenolic hydroxyl and three-dimensional structure of LS could form hydrogen bonding or steric hindrance with h-BN under ultrasound treatment. After mixing with cellulose nanofiber (CNF), the three-dimensional thermally conductive pathways are built in LS-BN/CNF aerogel through freeze-drying. The results show that the through-plane thermal conductivity of LS-BN/CNF/PVA composite with 0.2 wt% LS (LS0.2-BN/CNF/PVA) exceeds 1.22 W/mK when the h-BN/CNF ratio is 3:1 (w/w), which is 6.1-fold of that of PVA film (0.20 W/mK). The initial decomposition temperature and tensile strength of LS0.2-BN/CNF/PVA composite are 205 °C and 38.5 MPa, respectively, demonstrating acceptable thermal stability and mechanical properties for electronics as thermal interface and packing material. Overall, this work put forwards an effective approach to disperse h-BN and paves the way in developing high-performance thermal interface materials. |
| first_indexed | 2024-12-13T04:13:13Z |
| format | Article |
| id | doaj.art-dd43c575bc2043c5be812643f69128c5 |
| institution | Directory Open Access Journal |
| issn | 0264-1275 |
| language | English |
| last_indexed | 2024-12-13T04:13:13Z |
| publishDate | 2022-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Materials & Design |
| spelling | doaj.art-dd43c575bc2043c5be812643f69128c52022-12-21T23:59:57ZengElsevierMaterials & Design0264-12752022-02-01214110379Promoting h-BN dispersion in cellulose-based composite by lignosulfonate for regulatable effectual thermal managementXiu Wang0Mengya Sun1Ruibin Wang2Liang Jiao3Huiyang Bian4Hongqi Dai5Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China; International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing 210037, ChinaJiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China; International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing 210037, ChinaCollege of Chemistry and Chemical Engineering, University of South China, Hengyang 421001, ChinaJiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China; International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing 210037, ChinaJiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China; International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing 210037, ChinaJiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China; International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing 210037, China; Corresponding author at: Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China.Hexagonal boron nitride (h-BN) is an excellent thermally conductive and electrically insulative material. However, the formation of heat transfer pathways of h-BN in thermal interface materials is restricted due to its poor aqueous dispersity. Herein, water-soluble lignosulfonate (LS) is used to promote the dispersion of h-BN, the phenolic hydroxyl and three-dimensional structure of LS could form hydrogen bonding or steric hindrance with h-BN under ultrasound treatment. After mixing with cellulose nanofiber (CNF), the three-dimensional thermally conductive pathways are built in LS-BN/CNF aerogel through freeze-drying. The results show that the through-plane thermal conductivity of LS-BN/CNF/PVA composite with 0.2 wt% LS (LS0.2-BN/CNF/PVA) exceeds 1.22 W/mK when the h-BN/CNF ratio is 3:1 (w/w), which is 6.1-fold of that of PVA film (0.20 W/mK). The initial decomposition temperature and tensile strength of LS0.2-BN/CNF/PVA composite are 205 °C and 38.5 MPa, respectively, demonstrating acceptable thermal stability and mechanical properties for electronics as thermal interface and packing material. Overall, this work put forwards an effective approach to disperse h-BN and paves the way in developing high-performance thermal interface materials.http://www.sciencedirect.com/science/article/pii/S0264127521009345Lignosulfonateh-BNDispersionCNFThermal management |
| spellingShingle | Xiu Wang Mengya Sun Ruibin Wang Liang Jiao Huiyang Bian Hongqi Dai Promoting h-BN dispersion in cellulose-based composite by lignosulfonate for regulatable effectual thermal management Materials & Design Lignosulfonate h-BN Dispersion CNF Thermal management |
| title | Promoting h-BN dispersion in cellulose-based composite by lignosulfonate for regulatable effectual thermal management |
| title_full | Promoting h-BN dispersion in cellulose-based composite by lignosulfonate for regulatable effectual thermal management |
| title_fullStr | Promoting h-BN dispersion in cellulose-based composite by lignosulfonate for regulatable effectual thermal management |
| title_full_unstemmed | Promoting h-BN dispersion in cellulose-based composite by lignosulfonate for regulatable effectual thermal management |
| title_short | Promoting h-BN dispersion in cellulose-based composite by lignosulfonate for regulatable effectual thermal management |
| title_sort | promoting h bn dispersion in cellulose based composite by lignosulfonate for regulatable effectual thermal management |
| topic | Lignosulfonate h-BN Dispersion CNF Thermal management |
| url | http://www.sciencedirect.com/science/article/pii/S0264127521009345 |
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