I have seen that in CNT -polymer composites the bonding strength (van der waals, covalent etc) has been predicted by simulation. Is there any method to experimentally measure bonding strength or some other parameter.
Dear colleague Keerthi Bandara Jayasundera
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Yes, you can make XRD measurements to your composite and analyse the obtained data using radial distribution function, RDF.
For more details about the procedure, please follow the attached paper.
I wish this is useful and help you.
Yours
A. EL-Denglawey
https://www.stellarnet.us/wp-content/uploads/Exp4_Raman.pdf
Your composite has few carbon tubes. Therefore, it is important to see how they are embedded in the composite. Use Raman spectroscopy for these purposes. See how the measurement results are processed.
There would be the possibility to perform tensile tests applying a pico-indenter mounted inside a REM. A saw some presentations about tests on whiskers and found a descripition for testing whiskers/nanowires: https://www.hysitron.com/media/1526/mem09an-r1f.pdf
If you fix the polymer and attach the pico-indenters tip to a nanotube (that is bonded to the polymer) you can investigate the bonding strenght by pulling the nanotube.
I think that it is hardly possible to determine directly the bonding strength between CNT and the matrix polymer. But definitely you can estimate how an interaction between the both components affects properties of the polymer phase especially located at the CNT surface and in neighborhood. We have proved such estimation possibility on the example of MWCNT/polyaniline nanocomposites. You can find the used approach in our paper Article Evolution and Interdependence of Structure and Properties of...
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