Functional features of the nanocomposites, based on CNT

摘要

This article includes working out and trial of technological process of manufacturing functional nanocomposite on the basis of the epoxy resin and multiwall carbon nanotubes (CNT) of the Taunit-MD type. We discuss two advanced variants of implementing this nanocomposite: first of them - increasing strength of fiber composite material; second - using acquired material electric conductivity for determining temperature and pressure (deformation) changes. Material was prepared by means of a planetary mixer and ceramic grinding bodies. We performed dispersion quality analysis by means of an atomic-force microscope. This analysis demonstrated uniform distribution of the nanoparticles over the solidified material surface. Strength analysis result allowed obtaining data on material and matrix modulus of elasticity and strength changing. Material electric conductivity study allowed obtaining coefficients of thermo- and pressure sensitivity for sensors with different orientation of carbon nanotubes with weight content of 1%, 2%, and 3%. Performed study data demonstrate potential of using CNT as conductive particles in composite unit, allowing, for example, perform monitoring of the structure condition.