The consumer electronics industry regards protective films for electronics as essential barriers safeguarding smartphones, tablets, and laptops from scratches, fingerprints, and dust. Utilizing graphene nanotubes, such 3C films deliver exceptional functionality, durability, and aesthetic appeal. Nanotubes provide a unique combination of permanent anti-static performance with high transparency in coatings for 3C products, all without any need to alter standard technological processes or equipment.
Pressure-sensitive adhesive film used in the computer, communications, and consumer electronics industries adheres to surfaces with light pressure, providing protection against scratches, dust, and fingerprints while maintaining clarity and functionality. The anti-static properties of this film are crucial for preventing the build-up of static electricity on electronic components and devices, protecting them from ESD-caused damage and dust collection. For this reason, the PSA layer should be electrically conductive.
With an extremely high length-to-diameter ratio and a large surface area, coupled with excellent conductive and thermal properties and high strength, the addition of just 0.04 wt.% graphene nanotubes guarantees stable, permanent electrical resistance of 10^6 ohms within the pressure-sensitive adhesive layer. Such an ultralow dosage has no influence on the key mechanical parameters of the material, making nanotubes a superior conductive agent for 3C protective films. In comparison, traditional PSA on conventional polymer primer can only achieve a surface resistivity of 10^10 ohms/sq, and at lower resistivity levels, it tends to become unstable over time.
Graphene nanotubes create a permanent 3D conductive reinforcing network within the material, which remains stable throughout its service life. Their ultra-long morphology ensures no degradation of anti-static properties in 3C coatings.
Using graphene nanotubes in combination with PEDOT primer makes it possible to get even lower surface resistivity and to maintain all key technical parameters, including peel-off strength, with the original curing system, up to 80% transparency, less than 6% haze value, and good wet-out performance.
The electrical resistivity provided by TUBALL™ graphene nanotubes enables the anti-dust effect and touch-screen performance of the film, ensuring the required functionality and simplifying device maintenance.
TUBALL™ MATRIX 617 beta is a concentrate based on reactive polymer and pre-dispersed graphene nanotubes. It is specifically designed for silicone PSA systems to provide compatibility with standard mixing process and equipment. The concentrate is easy to handle even in demanding applications, notably in low solid-content systems. It can be added during the silicone compounding stage and doesn’t affect the manufacturing process.
Contact us to discuss your project specifications or to request a TUBALL™ MATRIX 617 beta
