I have a conductive printing ink which need to use for printing purpose obtained from sigmaAldrich. Unfortunaly, not much information was provided in the specs sheet. It is mention Dyesol, DYAG350 conductive silver ink Screen printable silver paste ....(most probably due to merketeing purpose dont want to reveal)anything particular. I even try to search Dyesol, DYAG350 but not really successfull.
Anybody did use it for composite preparation, suggestions can help me too.
Dear Imran Khan
Please refer to the links below
I hope you find the content in this links.
http://www.rsc.org/chemistryworld/Issues/2003/March/inkchemistry.asp
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4809139/
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4714735/
Dear Imran,
Currently, conductive inks based on metal particles have the best conductivity. There are conductive inks based on carbon particles, metal particles and conductive polymer. Ink composed of silver, or carbon, particles linked to each other by solving agents. To ensure a good conductivity, we must dry or cure the ink, in order to evacuate the solvents to strengthen the connections between metal particles.
Processing:
1g of silver acetate may dissolve completely in 2.5mL of NH4OH (30%). Exact 0.2mL of formic acid (HCOOH) can be added dropwise with stirring. Solution is then capped and allowed to stand for 12-18 hours. The solution is decanted and then pushed through a 0.2-0.25 micrometer(If less than 0.2 size, liquid cannot come out easily from syringe) pore syringe filter. Draw it onto a surface and let it dry. Then heat it upto 90 Celsius to sinter it into solid silver.
Ashish
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