Issue 12, 2019

Lightweight, mechanically flexible and thermally superinsulating rGO/polyimide nanocomposite foam with an anisotropic microstructure

Abstract

We report that lightweight, anisotropic, mechanically flexible, and high performance thermally insulating materials are fabricated by the assembly of graphene oxide (GO) and polyimide (PI). With an appropriate ratio between GO and PI building blocks, the rGO/PI thermally insulating material exhibits hierarchically aligned microstructures with high porosity. These microstructures endow the rGO/PI nanocomposite with low mass density and super-insulating property (extremely low thermal conductivity of 0.012 W m−1 K−1 in the radial direction). Meanwhile, the introduction of PI enhances the mechanical strength and thermal stability of rGO foam. Our rGO/PI nanocomposites as super-insulating foams with a low thermal conductivity are highly attractive for potential thermal insulation applications in aerospace, wearable devices, and energy-efficient buildings.

Graphical abstract: Lightweight, mechanically flexible and thermally superinsulating rGO/polyimide nanocomposite foam with an anisotropic microstructure

Supplementary files

Article information

Article type
Paper
Submitted
17 iyl 2019
Accepted
27 okt 2019
First published
01 noy 2019
This article is Open Access
Creative Commons BY-NC license

Nanoscale Adv., 2019,1, 4895-4903

Lightweight, mechanically flexible and thermally superinsulating rGO/polyimide nanocomposite foam with an anisotropic microstructure

Y. Qin, Q. Peng, Y. Zhu, X. Zhao, Z. Lin, X. He and Y. Li, Nanoscale Adv., 2019, 1, 4895 DOI: 10.1039/C9NA00444K

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