Progress in thermal and mechanical properties and interfacial compatibility of aerogel/ fiber composites

Abstract

Aerogel/fiber composites have shown a wide range of applications in aerospace, defence, environmental management and biomedicine due to their high porosity, low bulk density, high specific surface area and low thermal conductivity.The thermal and mechanical properties and interfacial compatibility of aerogel/fiber composites was reviewed, the heat transfer mechanism, mechanical property enhancement mechanism and interfacial compatibility bonding mechanism was introduced, and the effect of different fiber embedding on the final properties of the composites considering different fiber volume fractions and fiber multiscale i.e. different fiber diameters (aspect ratio) and pore diameters between fibers was summarized in this paper. Finally, the prospective future of the research directions of aerogel/fiber composites were proposed, including heat resistance, improved mechanical properties and material interface bonding.

Keywords

• aerogel/fiber
• thermal property
• mechanical property
• interfacial compatibility