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Structural design of multilayer thermally conductive nanofibrillated cellulose hybrid film with electrically insulating and antistatic properties

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Abstract

With the development of miniaturized and highly integrated of microelectronic products, it has become particularly important to fabricate a thermally conductive, electrically insulating and environment-friendly composite as a thermal interface material (TIM) for heat dissipation. Here, we designed the structure of a multilayer thermally conductive hybrid film based on nanofibrillated cellulose and fillers (graphene and boron nitride) using the vacuum-assisted layer-by-layer (VA-LBL) self-assembly technique. Fully unifying the advantages of the thermally conductive three-layer electrically insulating film and an antistatic film, the ordered five-layer thermally conductive film (7.04 W m−1 K−1 with 8 wt% fillers) exhibits a comprehensive performance with electrically insulating and antistatic properties, which simultaneously has an excellent tensile strength (172 MPa). Therefore, it could be applied as a TIM for various thermal management applications with diverse requirements in a safe and environmentally friendly manner.

Graphical abstract: Structural design of multilayer thermally conductive nanofibrillated cellulose hybrid film with electrically insulating and antistatic properties

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Publication details

The article was received on 16 Mar 2018, accepted on 04 Jun 2018 and first published on 05 Jun 2018


Article type: Paper
DOI: 10.1039/C8TC01277F
Citation: J. Mater. Chem. C, 2018, Advance Article
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    Structural design of multilayer thermally conductive nanofibrillated cellulose hybrid film with electrically insulating and antistatic properties

    N. Song, H. Pan, X. Liang, D. Cao, L. Shi and P. Ding, J. Mater. Chem. C, 2018, Advance Article , DOI: 10.1039/C8TC01277F

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