Fusible conductive ink for use in manufacturing microfluidic analytical systems
A fusible conductive ink for use in manufacturing microfluidic analytical systems includes micronised powder containing platinum and carbon, poly(bisphenol A-co-epichlorohydrin)-glycidyl end capped polymer, and a solvent. In addition, the ratio of micronised powder to poly(bisphenol A-co-epichlorohydrin)-glycidyl end capped polymer is in the range of 3:1 to 1:3. The fusible conductive inks can be employed in the manufacturing of microfluidic systems to form electrodes, electrically conductive traces and/or electrically conductive contact pads.
1. A fusible conductive ink for use in manufacturing microfluidic analytical system, the fusible conductive ink consisting essentially of:
micronised powder containing platinum and carbon;
poly(bisphenol A-co-epichlorohydrin)-glycidyl end capped polymer; and
a solvent,
wherein the ratio of micronised powder to poly(bisphenol A-co-epichlorohydrin)-glycidyl end capped polymer is in the range of 3:1 to 1:3.
2. The fusible conductive ink of claim 1 , wherein the micronised powder contains platinum and carbon in a mass ratio of approximately 1:9.
3. The fusible conductive ink of claim 1 , wherein the solvent is Methyl Carbitol (Diethylene Glycol Monomethyl Ether).
4. The fusible conductive ink of claim 1 , wherein the fusible conductive ink has a mass percent composition as follows:
18.5% micronised powder containing platinum and carbon in a 1:9 mass ratio;
19.0% poly (bisphenol A-co-epichlorohydrin)-glycidyl end capped polymer; and
62.5% Methyl Carbitol (Diethylene Glycol Monomethyl Ether) solvent.