Scalable, Robust, Low-Cost, and Highly Thermally Conductive Anisotropic Nanocomposite Films for Safe and Efficient Thermal Management

Chen, Qiang and Ma, Zhewen and Wang, Zhengzhou and Liu, Lei and Zhu, Menghe and Lei, Weiwei and Song, Pingan ORCID: https://orcid.org/0000-0003-1082-652X (2021) Scalable, Robust, Low-Cost, and Highly Thermally Conductive Anisotropic Nanocomposite Films for Safe and Efficient Thermal Management. Advanced Functional Materials:2110782. pp. 1-11. ISSN 1616-301X


Abstract

Recently, soaring developments in microelectronics raise an urgent demand for thermal management materials to tackle their overheating concerns. Polymer nanocomposites are promising candidates but often suffer from their inability of mass production, high-cost, poor mechanical robustness, and even flammability. Hence, it is desirable to scalably fabricate low-cost, robust polymeric nanocomposites that are highly thermally conductive and fire-retardant to ensure safe and efficient thermal management. Herein, the scalable production of nacre-like anisotropic nanocomposite films using the layer-by-layer assembly of phenylphosphonic acid@graphene nanoplatelets (PPA@GNPs)-poly(vinyl alcohol) (PVA) layer and GNPs layers, is demonstrated. The PPA serves as interfacial modifiers and fire retardants for flammable PVA (film-forming agent) and GNPs (inexpensive conductive nanofillers) via hydrogen-bonding and π–π stacking. The resultant nanocomposite exhibits a high flexibility, high tensile strength of 259 MPa, and an ultrahigh in-plane thermal conductivity of 82.4 W m-1 K-1, making it effectively cool smartphone and high-power light emitting diode modules, outperforming commercial tinfoil counterparts. Moreover, the as-designed nanocomposites are intrinsically fire-retardant and can shield electromagnetic interference. This work offers a general strategy for mass production of thermally conductive nanocomposites holding great promise as thermal management materials in electronic, military, and aerospace fields.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Faculty/School / Institute/Centre: Current - Institute for Advanced Engineering and Space Sciences - Centre for Future Materials (1 Jan 2017 -)
Faculty/School / Institute/Centre: Current - Institute for Advanced Engineering and Space Sciences - Centre for Future Materials (1 Jan 2017 -)
Date Deposited: 04 Jan 2022 22:23
Last Modified: 26 Mar 2022 05:55
Uncontrolled Keywords: fire-retardancy; graphene; layer-by-layer assembly; mechanical property; thermally conductive nanocomposite
Fields of Research (2008): 09 Engineering > 0912 Materials Engineering > 091202 Composite and Hybrid Materials
09 Engineering > 0912 Materials Engineering > 091205 Functional Materials
Fields of Research (2020): 40 ENGINEERING > 4016 Materials engineering > 401605 Functional materials
40 ENGINEERING > 4016 Materials engineering > 401602 Composite and hybrid materials
Socio-Economic Objectives (2008): E Expanding Knowledge > 97 Expanding Knowledge > 970109 Expanding Knowledge in Engineering
Socio-Economic Objectives (2020): 28 EXPANDING KNOWLEDGE > 2801 Expanding knowledge > 280110 Expanding knowledge in engineering
24 MANUFACTURING > 2409 Industrial chemicals and related products > 240999 Industrial chemicals and related products not elsewhere classified
Identification Number or DOI: https://doi.org/10.1002/adfm.202110782
URI: http://eprints.usq.edu.au/id/eprint/45256

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