Fabrication of Epoxy Nanocomposite with Aligned Carbon Nanotube/Cellulose Nanofiber via Joule-Heating Technology
발표자
()
초록
내용
Epoxy resin has been widely used for general applications, and recent research has focused on fabricating multifunctional epoxy composites by incorporating fillers such as carbon nanotubes (CNTs). However, CNTs tend to aggregate in the matrix due to their high aspect ratio and large surface area. Improved dispersion was achieved in an eco-friendly method by using cellulose nanofibers (CNFs). This is because an electrostatically stabilized structure was established due to electron delocalization from the sp2 carbon lattice of CNTs through CNF surface ions. Additionally, the Joule-Heating process not only facilitated the alignment of CNT/CNF with an applied electric field but also promoted curing through controlled heating within the epoxy matrix. This approach led to the development of a multifunctional epoxy composite with superior electrical, thermal conductivity and mechanical properties in the aligned direction, suggesting its effective applicability in various electronic devices.