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achieved starting from concentrations of just 0.1 wt%. The formation of a strong conductive network not only guarantees the required uniform conductivity, but it also increases the main mechanical properties of materials such as strength, fracture toughness and resistance to abrasion. The ultra-low dosage required using this conductive additive allows the original colour of the polymer to be maintained. The dilution process is also simplified as no change of equipment is necessary. Figure 3 shows the resistivity and


colour change of various concentrations of TUBALL MATRIX in epoxy resin. TUBALL MATRIX products are tailored according to the specific application: TUBALL MATRIX 201, 202 and 301 grades are designed for polyurethane, epoxy and polyester resins; TUBALL MATRIX 601 and 602 are suitable for silicone compounds. The high dispersion quality of single


wall carbon nanotubes in TUBALL MATRIX in combination with its usability allows good dispersions of nanotubes to be achieved in epoxy resins and other systems with the application of simple mechanical mixing. One example of a commercially successful product based on OCSiAl nanotubes is a line of anti- static epoxy floorings with TUBALL developed by one of the largest Russian flooring companies, TEOHIM. An ultra-low dosage of 0.01 wt% of TUBALL provides its compounds with volume resistivity of 108


Ω·cm without any significant impact on viscosity or colour.


Another success story is one of the


largest European suppliers of high-grade products and system solutions in composite systems, BÜFA Composite Systems/Germany, which has developed resin formulations for gelcoats and for GRP-composites based on OCSiAl nanotubes. A concentration of just 0.05% of TUBALL has allowed the company not only to adjust the surface resistivity to 104


Ω/sq but also to preserve the


mechanical properties and to maintain the existing formulation and processing.


Extending conductivity limits For improving conductivity in insulating materials such as polymers, manufactur- ers have used carbon black despite the numerous problems it can lead to. SWCNTs have shown a high potential to solve these existing issues and to bring conductivity without compromise. OSCiAl is taking the most innovative scientific research in the area of SWCNTs


and developing technology to cost-effec- tively integrate them into industrial materials. The company has already created a line of successful solutions for SWCNT integration, and TUBALL MATRIX adds to these solutions in a radical way. As the biggest breakthrough in achieving conductivity, TUBALL MATRIX super concentrates open the door to transcend- ing the limits of nanotube concentration in dispersions.


TUBALL MATRIX


super-concentrates and other TUBALL-based masterbatches will be showcased on the OCSiAl stand at K2016. Find out more at Stand C06 in Hall 7-2. Alternatively, learn more at www.ocsial.com or contact matrix@ocsial.com


Figure 2: Volume resistivity levels achieved using various TUBALL MATRIX loadings in epoxy resin


Figure 3: Adjusted resistivity level and colour change in epoxy resin with various loadings of TUBALL MATRIX super-concentrates


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