I am adding 0.1wt percent MWCNT to glass fiber epoxy composite and want to determine the volume fraction of the MWCNT from this composite but I don't know how to calculate it. can anyone help me with this?
Samir Mandal
You need to know the density of the MWCNT in order to convert from a mass to volume %.
#Alan sir, I have bulk density but I want to know the volume fraction of MWCNT after composite fabrication
Samir Mandal
Your question is confusing and simply repeating it does not help.
Are you saying that you're starting with a solution of 0.1 wt% MWCNT and you'll be adding this to a known mass of composite and want to know the final volume concentration? Or are you saying you want to end up with a 0.1 wt% of MWCNT in your composite?
If the former then we can work in volume terms. If have 0.1wt% in a solution then at unit density it's the same as 0.1 volume % (0.1 g CNT and 99.9 g solvent/continuous phase). If (or example) you're adding 10 mL of this (0.1 vol%) solution to 90 mL of composite (calculated from the mass of the composite you're using together with a knowledge of the density of the composite), then you'll be diluting 10-fold overall and your final concentration will be 0.01 volume %.
So we need to know what the masses and composition of your starting materials are and the densities of both components.
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