Hi Slider
You have a lot of things there, definitely got to try Guar Gum.
From what i have seen so far, it's all about carbon/ glue interface and carbon % composition, the problem is that glue is generally an insulator and therefore we need as much carbon as possible to overcome the insulation impurities, so we will never get really good conduction unless we ditch the glue and compress the carbon into say a rod, graphene is different because it's a pure structure, i think we need thick layers to get resistance down.
The carbon i made from sugar is actually really good, i can take a lump of glassy carbon 1cm cubed in shape and once heat treated as per dumped suggestion to red hot, i can get readings in the low 10's of Ohms, so the carbon is good i think.
I think i am doing it wrong though, i heat treat the glassy sugar lump and then crush it, i think i need to crush it first and then heat treat it because it maybe a case of once the glassy heat treated carbon is broken, it reveals a surface that was not directly heat treated and maybe impurities were not fully burnt off, trouble is that it is so light in ground form it gets blown away by the propane torch, really i could do with a ceramic crucible to fire it.
I am not sure about charcoal, i will give this a go, trouble i can see is that it cannot be heat treated? i mean if you heat charcoal it will burn to ash, and i don't think charcoal conducts, at the end of a BBQ you don't find pure graphite in the ashes but just ashes??
Hi WW
Super conductive inkjet printing could catch on
I would need to read up on this as i am not familiar with his work
Arie De Gues seems to hint at it by using very thin coatings of metal.
I'm wondering if passing a current through it while drying would increase the conduction, or maybe passing a few KV through the dried wire will carbon the interface between the glue and carbon atoms.