To keep growing, the conductive pressure-sensitive adhesive (PSA) industry needs to stay up to date on solutions for anti-static PSA, without drawbacks such as degradation of conductivity over time, low transparency, or limited flexibility. OCSiAl’s graphene nanotube-based solution addresses these issues, ushering in a new era of silicone PSA technology. The user-friendly nanotube dispersion TUBALL™ MATRIX 617 results in excellent electrical conductivity combined with more than 90% transparency in a wide range of peeling-strength PSA films.

The nanotube concentrate can be seamlessly integrated into silicone PSA resins without altering standard mixing processes or equipment. “The recently developed product is a concentrate based on a user-friendly reactive silicone polymer and pre-dispersed TUBALL graphene nanotubes specifically designed for silicone PSA systems. It offers an extremely fine quality of nanotube dispersion and is easier to handle in specific applications, notably in a low-solid-content systems,” said Ekaterina Gorbunova, development and support leader for elastomers and vice president at OCSiAl Group.

Just 0.2% TUBALL MATRIX 617 ensures uniform dispersion of conductive particles inside PSA film. This results in a stable surface resistivity of less than 107 Ohm/sq, even after multiple peelings and exposure to high temperatures, which makes it possible to meet strict requirements for stable touch-screen operations. In comparison, a traditional PSA on conventional polymer primer can only achieve surface resistivity of 1010 Ohm/sq, because above this level, it tends to become unstable over time.

The newly developed, permanently conductive silicone PSA formulations reduce the number of layers needed, eliminate the requirement for a primer, and improve cost-efficiency. The outcome is a new generation of fine, flexible, transparent, sensitive films suitable for applications in high demand in electronics, medical devices, the automotive industry, and packaging.

To learn more, watch a processing guide on anti-static PSA at https://youtu.be/tACryiEbGF8. 

To request a sample visit tuball.com.