Carbon Nanotube Inks for Screen Printing

UV-Cure Variant for AgeNT

Complementary to CHASM’s initial VC200 ink, VC210 can be used with any Silver Nanowire (AgNW) substrate in CHASM’s CNT Hybrid platform of AgeNT 10, AgeNT 30 or AgeNT 75 to manufacture transparent heaters, touch screens or touch button applications for use in high heat or humidity environments or those needing precise control of fine features. Examples include automotive touch buttons or heated HMI controls for industrial equipment used outdoors. Processing of VC210 follows a familiar workflow to VC200 series inks with an initial thermal cure followed by a UV pass so partners already experienced fabricating transparent conductive electronics with AgeNT come quickly up to speed on the new ink with little to no learning curve.

PRODUCT BENEFITS

Increases manufacturing yield for any transparent printed electronics application requiring robustness to handling during manufacturing.
Enables tighter control of precision features such as those found in the neck areas of touch circuits.
Increases manufacturing yield for any transparent printed electronics application requiring cleaning with chemical solvents during assembly such as touch screens.

Specially formulated from CHASM’s patented V2V™ ink vehicle and industry leading single wall CNTs, VC102 delivers printable, flexible transparent conductors with superior environmental robustness and optical performance than commercial alternatives such as PEDOT. VC102 is well-suited for cost-effective transparent circuit production at high volumes for touch buttons and sensors used in many applications including appliances, automotive interiors, and industrial controls. Developed in direct response to repeated feedback from printed electronics manufacturers, VC102 balances value, printing consistency, simplicity of patterning and environmental stability. VC102 is well suited to high volume transparent FPC applications. Suitable for harsh environment applications, VC102 successfully completed 1,000 hours of environmental testing at 65°C / 85% RH, exhibited minimal variation in resistance while transparency, haze and color remained very stable.

PRODUCT BENEFITS

Typical optoelectronic values: 800 – 1,000 ohm/sq at 85% VLT
Neutral color – does not impart clue color cast to transparent circuits
Low temperature drying (110°C)
Screen printable on a variety of flexible substrates
Low processing cost (< 3 min residence time)
Excellent adhesion to various substrates
Solvent base, containing no surfactants

Designed to serve a range of transparent conductors where tuning sheet resistance is desired. VC101 is a carbon nanotube ink designed for screen printing transparent conductors on a wide range of plastic films. VC101 can be tuned to desired specifications by printing in successive layers without the need for rinsing operations or high-temperature baking to remove surfactants, dispersing agents and rheology modifiers.

Tunable by printing successive layers; 1,000 – 4,000 ohm/sq
3,700 Ohm/sq at 93% VLT
Conductive CNTs produced using CoMoCAT™ technology
Polymer binder to promote adhesion
Solvent-based ink vehicle made using V2V™ viscous-to-vapor technology developed by CHASM (patents pending).