C4 Shielding, LLC. began its operation in 501 Silverside Road Suite 98, Wilmington, DE, USA in 2017. The company focuses on commercializing polymer-free, non-composite, densified ultrathin carbon nanotube (CNT) sheet---a thin film that is best in the class and a platform material. These flexible, robust and durable CNT sheets withstand high temperature, resist organic solvents and strong acids and bases. They are superior electromagnetic interference (EMI) shielding material and can find applications in defense, aerospace, automotive and consumer electronics markets. They can also find use as battery electrodes and catalyst supports.
WHAT IS A CARBON NANOTUBE?
C4 Shielding manufactures robust and durable, ultrathin CNT sheets from raw pristine CNT sheets.
WHAT SETS US APART?
C4 Shielding approaches this technological challenge from a very different direction by developing a proprietary process to purify CNTs in raw pristine CNT sheets without relying on harsh and corrosive chemical treatment.
SPACE, SATELLITE COMMUNICATIONS, DEFENSE, CONSUMER ELECTRONICS AND AUTOMOTIVE MARKETS
Most Lightweight with Areal Density of 6 g/m^2
Very Thin (2-4 micrometers)
Compatible with Extreme Temperatures, High Humidity, and Strong Acids/Bases
Flexible, Durable, and Robust
Here we show a 30 cm x 30 cm CNT sheet of less than 5 micrometers in thickness and less than 0.75 g in mass to shield the electromagnetic signal for making a phone call. When the phone is wrapped in the sheet, it cannot pick up any signal to ring.