Very often carbon fibers are functionalized via sizing. This can be to improve the fiber-matrix bonding and to improve the processing. Sizings are based on epoxy or PU.
Is there any possibility that the sizing will influence the thermal conductivity? So far I am convinced there is no effect as the sizing is very little (< 1% of the fiber) and just used for functionalisation, not to alter someting fundamental on the fiber that will influence the conductivity.
Dear Dr. Simon Bard,
I suggest you to have a look at the following, interesting papers:
- Effects of Sizing on Thermal Conductivity of Single Carbon Fibers in Longitudinal and Radial Directions
Jordan Whetsell, Junfeng Liang, Mrinal Saha, M. Cengiz Altan
Available, as abstract, on RG at: https://www.researchgate.net/publication/265726727_Effects_of_Sizing_on_Thermal_Conductivity_of_Single_Carbon_Fibers_in_Longitudinal_and_Radial_Directions
-Investigation the conductivity of carbon fiber composites focusing on measurement techniques under dynamic and static loads
Ibrahim M.Alarifi
Journal of Materials Research and Technology, Volume 8, Issue 5, Pages 4863-4893 (2019)
Available at: https://www.sciencedirect.com/science/article/pii/S2238785419309950
-Enhancement of the electrical and thermal properties of unidirectional carbon fibre/epoxy laminates through the addition of graphene oxide
Senis, E.C., Golosnoy, I.O., Dulieu-Barton, J.M. et al.
Mater. Sci., 54, 8955–8970 (2019)
Available at: https://link.springer.com/article/10.1007/s10853-019-03522-8
Best regards. Pierluigi Traverso.
Dear all, the material constituting the interface influences most if not all the properties of the composite/hybrid material. The following documents illustrate these facts. My Regards
https://www.researchgate.net/publication/262898561_Effects_of_Sizing_Materials_on_the_Properties_of_Carbon_Fiber-Reinforced_Polyamide_66_Composites
https://doi.org/10.1021/am201757v
Dear all, these are interesting additional documents. My Regards
In September, at an international conference in Yakutsk, Russia, our work will be published: Structure and thermal conductivity of structural polymer composites - based on epoxy resin with carbon reinforcing components of different sizes and volume fraction 0.05 < V fiber
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