Abstract
The problem of micro-cracking associated with integrated flexible-polymer and metal-surfaces due to material mismatch has been discussed. To alleviate the problem of micro-cracking, the use of conducting nanocomposite polymers with a hybrid fabrication process is suggested. This approach keeps intact the flexibility of the polymer while imparting conductivity to it. PDMS (polydimethyl-silioxane), an insulating polymer, is doped with conducting nanoparticles (carbon nanotubes) by a 5 step process. Three mechanisms for the dispersion of nanoparticles in the polymer matrix have been discussed, namely ultrasonic agitation, shear mixing, and ball milling, of which ultrasonic agitation is considered to be the most effective. The use of a hybrid fabrication technique against a SU-8 mold to prepare an electrically-conducting nanocomposite structure combined with nonconductive PDMS is also discussed.
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