The question is: what should the graphene (oxide) do in there? If all you want is have it somehow in there, you can just melt your polymer and mix it in, but I don't see much of a point about that [I am open for correction on this point].

If you want to introduce certain electrical or optical properties, it will be much more difficult and probably polymer-specific.

Yes, I want to improve the electrical property of PDMS film. In some papers I read, they simply added graphene into the PDMS mixture. However, from my experience, the rGO-polymer was not hardened even I cured it overnight at 80 oC. With pristine PDMS, it only takes 3 hours at the same temperature.

Hai tk

*The best way to dope graphene or graphene oxide into a polymer substrate is by liquid-phase dispersal. This process involves mixing the graphene or graphene oxide in a solvent and then adding it to the polymer matrix. Another method is by mechanical blending, which is done by physically mixing the graphene or graphene oxide with the polymer matrix. Both of these methods are effective for doping graphene or graphene oxide into a polymer substrate.

*The addition of graphene to PDMS can improve its electrical properties, but it is important to choose the right kind of graphene and mix it in the correct proportions with the PDMS. It may also be beneficial to try different ratios of graphene and PDMS, as well as varying curing times and temperatures, in order to achieve the desired electrical properties. Additionally, if you're having trouble with the rGO-polymer not hardening, it could be due to not mixing the materials together thoroughly, or it may be because the curing time or temperature is not optimal for the materials.

Thank you Dr. R. Sagayaraj . According to you, the liquid-phase dispersal requires mixing the graphene in a solvent. However, will I need to mix graphene if it is already in solution form? And with the mechanical blending, which kind of graphene should I use (powder, particles or solution)?