Aerogel/epoxy thermal coatings for carbon fibre reinforced plastic substrates

Date published

2019-01-20

Free to read from

Supervisor/s

Journal Title

Journal ISSN

Volume Title

Publisher

Taylor and Francis

Department

Type

Article

ISSN

0169-4243

Format

Citation

Krishnaswamy S, Abhyankar HA, Marchante V, et al., (2019) Aerogel/epoxy thermal coatings for carbon fibre reinforced plastic substrates, Journal of Adhesion Science and Technology, Volume 33, Issue 6, 2019, pp. 579-594

Abstract

The present work studies an aerogel/epoxy composite that was dip coated onto a carbon fibre substrate by adding the aerogel at the 1 h and the 1.5 mark of the epoxy cure. Both coatings show decrease in thermal conductivity values (39% and 47% respectively) when compared to a pure epoxy coating. The coatings’ reflectance spectra also provided further evidence for the existence of the nano-pores within the aerogel particles. The aerogel coating was modelled using material properties from literature and solved using finite element methods. The model, which validated using experimental data, was then used to predict the coating’s performance in cyclic thermal loads. Additionally, coatings on a single surface- top and bottom; were also modelled and compared with the double coating system wherein it was seen that the double coating system had the lowest rate of temperature change and fluctuations at steady-state in contrast to the bottom coating which, showed the fastest drop in temperature as well as the highest fluctuations at steady state conditions. The performance of the top coating was in the middle.

Description

Software Description

Software Language

Github

Keywords

Aerogel, composites, thermal coatings, finite element modelling, epoxy

DOI

Rights

Attribution-NonCommercial 4.0 International

Relationships

Relationships

Supplements

Funder/s