Improving the Adhesion of Carbon Fibers

  • ChemPubSoc Europe Logo
  • Author: ChemPhysChem
  • Published Date: 25 October 2018
  • Source / Publisher: ChemPhysChem/Wiley-VCH
  • Copyright: Wiley-VCH Verlag GmbH & Co. KGaA
thumbnail image: Improving the Adhesion of Carbon Fibers

Related Societies

Carbon fibers are often used as a structural reinforcing agent for polymers. These materials are lightweight, and can, for example, help to decrease the CO2 emissions of transport vehicles. One problem in these reinforced polymers is the adhesion between the polymer and the carbon fibers. Poor interfacial adhesion can lead to mechanical failure.


John E. Moses, La Trobe Institute for Molecular Science, Melbourne, Australia, Luke C. Henderson, Deakin University, Waurn Ponds, Australia, and colleagues have developed a way to modify the surface of carbon fibers using a sulfur(VI) Fluoride Exchange (SuFEx) approach [1]. SuFEx uses reactants with –SO2F groups. The –SO2F groups undergo a "click" reaction in which the fluoride is replaced by a nucleophile.


The team first installed sulfur(VI) fluoride units on the surface of the carbon fibers, either via electrochemical deposition of an aryldiazonium salt with a fluorosulfate moiety or by treating the material with SO2F2. A 4‐aminophenol silyl ether was used as nucleophile then used to functionalize the surface (result pictured).


The attachment of the aromatic amine to the fiber surface increased the adhesion between the fiber and an epoxy resin by 130 % relative to an unfunctionalized control. The mechanical strength of the fibers remained unchanged. According to the researchers, this procedure provides a simple method for tailoring the surface of carbon fibers for different applications.


 

[1] Jiajia Dong, Larissa Krasnova, M. G. Finn, K. Barry Sharpless, Sulfur(VI) Fluoride Exchange (SuFEx): Another Good Reaction for Click Chemistry, Angew. Chem. Int. Ed. 2014. https://doi.org/10.1002/anie.201309399

 

Article Views: 456

Sign in Area

Please sign in below

Additional Sign In options

Please note that to comment on an article you must be registered and logged in.
Registration is for free, you may already be registered to receive, e.g., the newsletter. When you register on this website, please ensure you view our terms and conditions. All comments are subject to moderation.

Article Comments - To add a comment please sign in

Bookmark and Share

If you would like to reuse any content, in print or online, from ChemistryViews.org, please contact us first for permission. more


CONNECT:

ChemistryViews.org on Facebook

ChemistryViews.org on Twitter ChemistryViews.org on YouTube ChemistryViews.org on LinkedIn Sign up for our free newsletter


A product of ChemPubSoc Europe (16 European Chemical Societies)and Wiley-VCH