paulr1234 - 30-8-2010 at 21:53
I'm doing some private research into electroactive polymers as robotic actuators (particularly cellulose substrate thin-film ones).
I'm looking for small quantities of MWNTs and SWNTs and fullerenes. Just a few grams at a time, ideally 95% purity range. Need a modestly priced
source. Don't have any particular requirements beyond this.
I found a source in China who will sell me MWNTs for a $1 a gram but I'm uncertain about the quality and don't want to start paying to ship bottles of
mixed soot around the world.
bquirky - 1-9-2010 at 08:06
I have considered attempting to separate carbon nano particals (easaly produced using an electrical discharge in ethanol) using Chromatography
columns. but ive never been able to come up with a good reason to justify the effort.
1$ per gram sounds like a good deal.
but i cant think of anyway to (at home) differentiate mwnt from swnt.
However i have seen many papers mention that nitric acid will preferentialy attack amorphus carbon inpreferance to nanotubes and other well formed
structures
however i cant recall a referance
Fleaker - 1-9-2010 at 18:28
Have fun running the column on those.
You'll pay through the nose on the SWCNTs.
Are you in the US? I might be able to help you.
Hello Fleaker
paulr1234 - 18-9-2010 at 23:26
Yes, I'm in the USA - can you help? Can pay.
MagicJigPipe - 19-9-2010 at 08:52
A couple of grams of SWCNTs is A LOT to me. Those things go a long way. It's as if you can spread them infinitely.
If you find a good source of cheap and decent quality SWCNTs, let me know for sure.
If you needed a few hundred mg, I could help you, but that's it.
SWCNTs
paulr1234 - 19-9-2010 at 22:27
Just a 100mg or two would be a great starting point - do you have any ideas about what you want in terms of $ or trade?
I can currently get 35% purity SWCNTs from Alfa for $64 for 250MG. I'd be interested in securing larger quantities and better purity levels.
Yes, they do go a long way but right now I am planning on experimenting with a whole bunch of permutations to this preparation: http://ndeaa.jpl.nasa.gov/nasa-nde/lommas/eap/Nanotube-PrepP...
Which looks like a fairly material-intensive methodology to begin with, and I'm planning on rattling through a whole bunch of variables (adding
additional conductive particles and tweaking the base polymer in a variety of different ways) so expect to go through quite a lot.
preeti22 - 17-4-2012 at 21:03
Hi,
If you want best carbon nanotubes from US you can contact nanoshel.