Highly Thermally Conductive Triple-Level Ordered CNT/PVA Nanofibrous Films

Wu, Yanyan1; Chen, Anqi1; Jiang, Wenlong2; Tan, Zhiye1; Fu, Tingting1; Xie, Tingting1; Zhu, Guimei1; Zhu, Yuan1,3

2024-03-01

10.3390/polym16060734

POLYMERS   影响因子和分区

2073-4360

The escalating thermal power density in electronic devices necessitates advanced thermal management technologies. Polymer-based materials, prized for their electrical insulation, flexibility, light weight, and strength, are extensively used in this field. However, the inherent low thermal conductivity of polymers requires enhancement for effective heat dissipation. This work proposes a novel paradigm, emphasizing ordered structures with functional units, to create triple-level, ordered, low-filler loading of multi-walled carbon nanotube (MWCNT)/poly(vinyl alcohol)(PVA) nanofibrous films. By addressing interfacial thermal resistance through -OH groups, the coupling between polymer and MWCNT is strengthened. The triple-level ordered structure comprises aligned PVA chains, aligned MWCNTs, and aligned MWCNT/PVA composite fibers. Focusing on the filler's impact on thermal conductivity and chain orientation, the thermal transport mechanisms have been elucidated level by level. Our MWCNT/PVA composite, with lower filler loadings (10 wt.%), achieves a remarkable TC exceeding 35.4 W/(m center dot K), surpassing other PVA composites with filler loading below 50 wt.%.

thermal management poly(vinyl alcohol)-based materials Angstrom method

SCI ; EI

英语

第一 ; 通讯

Polymer Science

Polymer Science

WOS:001192549400001

MDPI

Web of Science

1.Southern Univ Sci & Technol, Sch Microelect, Shenzhen 518055, Peoples R China
2.Southern Univ Sci & Technol, Sch Innovat & Entrepreneurship, Shenzhen 518055, Peoples R China
3.Southern Univ Sci & Technol, Acad Adv Interdisciplinary Studies, Shenzhen 518055, Peoples R China

Wu, Yanyan,Chen, Anqi,Jiang, Wenlong,et al. Highly Thermally Conductive Triple-Level Ordered CNT/PVA Nanofibrous Films[J]. POLYMERS,2024,16(6).

Wu, Yanyan.,Chen, Anqi.,Jiang, Wenlong.,Tan, Zhiye.,Fu, Tingting.,...&Zhu, Yuan.(2024).Highly Thermally Conductive Triple-Level Ordered CNT/PVA Nanofibrous Films.POLYMERS,16(6).

Wu, Yanyan,et al."Highly Thermally Conductive Triple-Level Ordered CNT/PVA Nanofibrous Films".POLYMERS 16.6(2024).