Carbon nanotubes exhibit great potential in many advanced material fields due to their outstanding mechanical, electrical, and thermal properties. However, their inherent high specific surface area and strong van der Waals forces make them extremely prone to agglomeration, a problem that severely restricts the full realization of their performance and has become a common bottleneck in materials research and production. Agglomerated carbon nanotubes are not only difficult to uniformly incorporate into a matrix but also cause performance defects in composite materials, affecting final product quality and consistency.
Facing this core challenge directly, Chemi Tech, drawing on extensive experience in surface chemistry, has developed a series of high-efficiency dispersants dedicated to carbon nanotubes. Our solution is not simply the provision of a product; it is dedicated to changing the interfacial interaction between carbon nanotubes and the matrix material at the root, achieving a stable and uniform dispersion effect.
Our professional dispersion solution includes three key steps. First, conduct precise system-matching analysis. Our technical team will carefully evaluate your carbon nanotube type, target solvent or resin system, and final performance requirements, and recommend the most suitable dispersant grade accordingly. Second, provide optimized dispersion process guidance. We have summarized a set of efficient process parameters covering premixing, shear dispersion, and ultrasonic treatment, ensuring that the dispersant fully interacts with the carbon nanotubes and effectively opens up entangled agglomerates. Finally, maintain long-term dispersion stability. Chemi Tech dispersants can form a firm steric hindrance or electrostatic barrier on the carbon nanotube surface, preventing re-agglomeration during use and storage and ensuring the long-term stability of the system.
In a specific collaboration, an electronic device company needed to incorporate carbon nanotubes into an epoxy resin system to improve thermal conductivity. Initially, they faced severe carbon tube sedimentation and a sharp increase in resin viscosity. After adopting the dispersant custom-recommended by Chemi Tech and the accompanying process, the carbon nanotubes achieved nanoscale uniform dispersion in the system with stability exceeding three months, and the thermal conductivity of the final composite material increased by about 60%, fully meeting the design target.
Choosing Chemi Tech means you obtain not just a high-quality dispersant but a proven and reliable technical support system. We are committed to working with customers to overcome material dispersion challenges and help your products break through performance limits.