By NanoLab Inc.
OD: 15 ± 5 nm, Length:1-5 μm (PD15L1-5-NH2) OD:15 ± 5 nm Length:5-20 μm (PD15L5-20-NH2) OD: 30 ± 15 nm, Length:1-5 μm (PD30L1-5-NH2) OD: 30 ± 15 nm, Length:5-20 μm (PD30L5-20-NH2)
The NanoLab "Nink" products are carbon nanotube inks for direct printing of nanotube electronics and sensors. This ink contains carboxyl (COOH) functionalized carbon nanotubes in an aqueous suspension with the minimum concentration of additives to impart long term stability and printability to the ink. NanoLab produces two types of ink, Nink-1000 (multiwall carbon nanotube ink) and Nink-1100 (single wall carbon nanotube ink). We sell the Nink refill kits only, so you can fill a print head with our Nink. Refill kits: include 100ml Nink, Nink-1100 single wall carbon nanotube ink refill kit $350
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The NanoLab "Nink" products are carbon nanotube inks for direct printing of nanotube electronics and sensors. This ink contains carboxyl (COOH) functionalized carbon nanotubes in an aqueous suspension with the minimum concentration of additives to impart long term stability and printability to the ink. NanoLab produces two types of ink, Nink-1000 (multiwall carbon nanotube ink) and Nink-1100 (single wall carbon nanotube ink). We sell the Nink refill kits only, so you can fill a print head with our Nink. Refill kits: include 100ml Nink, Nink-1000 multiwall carbon nanotube ink refill kit $300
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Separately we offer suspensions in various solvents that are made from pristine nanotubes. These typically involve the use of surfactants to assist in stabilization.
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To carboxyl functionalize our carbon nanotubes (produced by the CVD method), we perform a reflux in concentrated sulfuric / nitric acid. This process results in a large concentration of carboxylic acid COOH groups on the nanotube surface, and also generates other groups. After functionalization, these carboxylated multiwall carbon nanotubes have 2-7 wt% COOH by titration. These typically have a high zeta potential, varying from -30 to -70mV as a function of pH. We highly recommend our PASTE versions of the COOH terminated nanotubes. Pastes are supplied at 10wt% concentration in water, and are very easy to disperse in other solvents. In contrast, the dried carboxylate powders are less easy to redisperse. OD: 4 ± 1 nm Length: 1-5 μm; OD: 4 ± 1 nm Length: 5-20 μm. Catalog No. D4L1-5-COOH, D4L5-20-COOH
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