Title: Preparation and electrical properties analysis of waterborne epoxy resin carbon nanotube composite materials

Authors: Yan Sun; Xinjian Zhang; Li Niu

Addresses: School of Mechanical Engineering, Anhui Technical College of Mechanical and Electrical Engineering, Wuhu, 241002, Anhui, China ' School of Aeronautics and Materials, Anhui Technical College of Mechanical and Electrical Engineering, Wuhu, 241002, Anhui, China ' School of Mechanical Engineering, Anhui Technical College of Mechanical and Electrical Engineering, Wuhu, 241002, Anhui, China

Abstract: Using multi-walled carbon nanotubes and waterborne epoxy resin as raw materials, a waterborne epoxy resin carbon nanotube composite material specimen was prepared. The effects of the amount of multi-walled carbon nanotubes and montmorillonite, as well as shear time, on the electrical properties of the composite material were analysed. The conductivity and dielectric loss is analysed through a broadband dielectric impedance spectrometer. Then, a high resistance meter is used to test surface and volume resistivity. Finally, the mechanical and electrical performance is analysed through a universal testing machine combined with the four electrode method. The experimental results show that extending the stirring time can reduce the surface resistivity of composite materials and improve their conductivity; increasing the amount of multi-walled carbon nanotubes can reduce surface resistivity; increasing the amount of montmorillonite appropriately can improve the dielectric constant of the material.

Keywords: waterborne epoxy resin; carbon nanotubes; preparation of composite materials; electrical performance analysis; conductivity; surface resistivity.

DOI: 10.1504/IJMMP.2024.135794

International Journal of Microstructure and Materials Properties, 2024 Vol.17 No.1, pp.49 - 68

Received: 28 Apr 2023
Accepted: 14 Jul 2023
Published online: 05 Jan 2024 *