Grat-Ink™

Grat-InkTM: High-quality graphene inks. 

Bluestone’s Grat-InkTM products consist of well dispersed graphene nano-flakes in aqueous or NMP (N-Methyl-2-pyrrolidone) solutions. These graphene dispersions can be made with or without binders for specific applications and coating methods to form conductive films. Grat-InkTM solutions are ideal for a wide range of applications such as conductive additives to polymers, conductive papers, thermal dissipation, EMI shielding, and conductive inks.

Features & Benefits

  • Available in aqueous or in NMP solvents
  • Optional binder additives for enhanced adhesion and mechanical strength
  • Ease of handling and processing
  • Batch-to-batch product consistency

Technical Specs

Product ID

Grat-Ink-101B

Grat-Ink-101N

Grat-Ink-102B

Grat-Ink-102N

Solvent

Water

Water

NMP

NMP

Solid (wt%)

5~6

5~6

11~12

11~12

Sheet resistivity normalized to 1 mil (W/sq.)

As deposited

~63

~9

~120

~42

After pressing a

~13

~3

~24

~6

Density (g/cm3)

~0.95

~0.89

~0.97

~0.67

Drying (minutes )

~6 min @ 80oC

~6 min @ 80oC

~12 min @ 80oC

~12 min @ 80oC

Viscosity (cps)

12.8

1.25×102

4.45×103

Coverage

(cm2 /g/mil )

64

41

78

156

Binder

Yes

No

Yes

No

a The compression ratio is about 50%. The final resistance value may vary depending on the pressing pressure and the compression ratio.

DISPERSION CAN BE CUSTOMIZED
AND/OR TO YOUR IDEAL PRODUCT SPECIFICATIONS.