How to Make a Capacitor Using Paper and Electric Paint

[@XtreamArpit]

But paper has holes charges may pass through them ?

[@neutronenstern.]

I think it actually charged up to 9 volts almoust emidiately. But you discharged it with your bare hands to 0.3 V just by touching it. It has got 50nF so at 9V it holds a charge of 4.5*10^-7 C. At a average of 4.5V of the capacitor while discharging and 10000 ohms of your hands theres a current floating through your body of 4.5V/10000ohm= 4.5*10^-4 A. So the 4.5*10^-7 C are almoust gone in 4.5*10^-7C/4.5*10^-4A=10^-3s (thats just a raff estimation because of the curre t flowing depends on the Voltage across your body. And since the Voltage isnt going down linear with time, the average voltage isnt half the maximum Voltage. But between 9V and 0.3 V you can estimate it with half of the voltage bdcause 0.3 V isnt that low so between 9V and 0.3 V it almoust falls linear.)

[@nadiaho-sue6388]

Amazing video, having flashbacks of learning this....I remember nothing lol

[@mojekh]

This is very cool educating video!! Many thanks for that!!

[@aomanchutube]

Nice presentation, but would be great to see it do something. Robert Murray Smith always shows the little motor+propeller that would be available to anyone to compare.

[@bareconductive0]

Thank you for the feedback, we'll have a look into it!

[@tshxxmx]

Would normal paint do? Also how many pieces of paper were layered (ie what was the thickness of the cap)?

[@bareconductive0]

Hello, we use Electric Paint, which conducts electricity. The capacitors were made with just one piece of paper, painted on both sides.

[@magnuswootton6181]

@@bareconductive0 its not just electric paint, its highly capacitive paint! :)

[@SaurabhSharma-is4xg]

Hey, can you tell me if this conductive paint conducts AC current as well or not?

[@bareconductive0]

As we haven't tested it sufficiently with AC, I can't promise that it will work but if you are using low voltages, I think it might be worth trying out! Let us know how you get on

[@alperakurt9929]

hello is it possible to make this experiment with carbon copy paper? respects

[@bareconductive0]

Hello, we haven't tried to use with carbon paper, what do you have in mind?

[@CondensedComments]

3:36 Yeah it is really cool!

[@robertjenkins5440]

I'm new to the channel...what is bare paint? And where do you get it?

[@bareconductive0]

The Bare Conductive Electric Paint is water based carbon, that conducts electricity. You can find more details on our website: www.bareconductive.com

[@kreynolds1123]

I hate to be overly critical. And enjoy people trying new things, but I feel people would benefit to understand a few things about this capacitor. As demonstrated in this video, it took a srveral minutes to charge a few nanofarad capacitor a few minutes to charge up to around 0.3v or 1/30 of the charging voltage. This is a result of significantly high equivalent series resistance (ESR) in the paint leading to a virtually uselessly high resistor capacitor (RC) time constant. Or that it has a significant high leakage current due to moisture in the paper and needs to dry much longer but the ESR is likely to increase with further drying. So although interesting,, this would not be a good capacitor for virtually anything. One will need a far better conducting paint.

[@belajarbisnisonline9324]

Awesome

[@asimations]

cool what paint did u use? can u try graphite?

[@bareconductive0]

It's Electric Paint. Carbon water-based. If you've got more questions, let us know.

[@gristlevonraben]

can you use the paint as circuits on a circuit board?

[@bareconductive0]

You can use the Electric Paint for small PCB repairs, but you can't draw circuits with it

[@gristlevonraben]

thank you for the reply. I will look into this some more. I'd like to make some capacitors with this. Have you considered adding graphene to make it more conductive? Or even copper or aluminum nano particles?

[@bareconductive0]

No we haven't actually! Electric Paint uses carbon as a conductor, but we haven't mixed it with other particles.

[@mouldykev]

Did i miss something here ! ! ? ? What happend to the electrolyte that you are supposed to use to make this thing work ?

[@bareconductive0]

Hi kev wallcroft, in this tutorial we made a capacitor using the paper as the dielectric and the paint as the conductive plates.

[@AlekseyCamodelkin]

Not a bad idea

[@danielade9062]

a conductive paint called Bare Paint

[@dalenassar9152]

You did not mearssure the resistance of the paint on the paper!! This capacitor should charge tp 9v almost INSTANTLY! The charge leaks off FAST. I really don't see how there would be any difference in charging it for seconds or minutes unless there is significance resistance in the paint--still, not likely. There is something off here.

[@Buzzhumma]

Cool

[@magnuswootton6181]

just add electrolyte and its a super cap! haha

[@lankaat]

This is not a good explanation. To begin with, the paint itself has to be a metal based conductive type.

[@kreynolds1123]

No, metals are not the only conductors one can use in a paint.