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Improving thermal conductivity of poly(vinyl alcohol) composites by using functionalized nanodiamond

Improving thermal conductivity of poly(vinyl alcohol) composites by using functionalized nanodiamond

Authors :
Shulin Song
Zulfiqar Ali
Linhong Li
Jinhong Yu
Xianzhe Wei
Maohua Li
Hao Wang
Cheng-Te Lin
Guichen Song
Yuming Wu
Yue Qin
Nan Jiang
Jian Yi
Source :
Composites Communications. 23:100596
Publication Year :
2021
Publisher :
Elsevier BV, 2021.

Abstract

Highly thermally conductive polymer composites with over 10 W m−1 K−1 are widely pursued in the commercial field. Unfortunately, the polymer composites with high thermal conductivity are few reported using simple and scalable methods to meet the commercial demands. Therefore, herein highly thermal conductive polymer composites consisting of hydroxyl-rich nanodiamonds (ND-OH) and poly(vinyl alcohol) (PVA) are reported, which exhibits the interfacial properties of composite is closely related to its thermal conductivity. It proves that interface strength between matrix and filler would dominate the thermal conductivity of composite at a relatively low content. While the thermal conductivity would be dominated by the filler-filler interaction at high loadings. The ultrahigh thermal conductivity of the PVA/ND-OH composite is 18.98 W m−1 K−1 when ND-OH reach at 90 wt%. The polymer composites present the excellent thermal conductivity and show a potential application for thermal management of the next-generation electronic products.

Details

ISSN :
24522139
Volume :
23
Database :
OpenAIRE
Journal :
Composites Communications
Accession number :
edsair.doi...........99bd172fb21b6aa49665f6ba719487f4
Full Text :
https://doi.org/10.1016/j.coco.2020.100596