Carbon nanotubes.
Polymer matrix: epoxy solid fine powder (uncured resin)
After mixing: go to oven for curing
Shall I use ball milling? What is the idea mixing configuration? Shall I use a liquid media? Ethanol?
A polymer can be mixed inside an autoclave. But I am not sure if it results in your nanoparticles?
Thank you, Murat. I will give a try if I get an autoclave from other groups
use surfactant while preparing nanoparticles. Are nanoparticles magnetic?
In our case, e.g. In order to formulate the free standing sheet of polypyrrole (PPy), phenolic resin (Novolac) was used as the matrix/binder for all samples. Homogeneous dispersion of PC composites into the matrix is a very important part to get the uniform sheet. Therefore, various formulations of as prepared composite samples have been ball milled with phenolic resin, taken in 1:1 mass ratio for 3 h to get homogenous composite mass. Then predetermined amount of this composite mixture has been placed into the mold and positioned between the platens of the compression molding machine. Thereafter, pressure of 430 Kg/cm2 has been applied at 90 _C. After 1 h, the mold was opened for the breathing process to escape out the entrapped gases evolved due to cross-linking reaction of phenolic resin and again closed for 2 h after getting the post curing temperature at 150 _C. The compression-molded sheet of polypyrrole carbon fiber composite (PCP) having a thickness of about 1.25 mm has been ejected out from the mold after cooling at room temperature. To study the effect of carbon fiber loading on the properties different PC composite samples were utilized to PCP sheet having pyrrole to carbon fiber weight ratio of 15 (PCP1), 25 (PCP2), and 35 (PCP3) following the same procedure. In addition, polypyrrole sheet (PP) without carbon fiber (0 wt%) was also fabricated by the same procedure.
Now if we have to incorporate nanoparticles, then we can incorporate them during the formulation technique as given above.
thank you, Sundeep. As regarring ball milling, what is your suggestion for the rpm rotation value? And the amount, number and size of the milling balls?
May be you can try to dissolve your epoxy in any solvent i.e. THF etc., and then try to disperse your CNT in different ratios by doing ultrasonication for variable times. Then cast the films in petridishes and let the solvent evaporate at room or any other low temp.
Why don't you try out the Doctor's Blade coating method, if you have one apparatus..
And about mixing the NPs, you could try out DMF to get it well dispersed or also ethanol to some extent, its also good at it work.
If you do not have the apparatus, use the Glass slides for the thin films.. really thin...
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