STUDY ON EFFECT OF NANOCOMPOSITE AgCu/SiO2 ON THE PHYSICO-MECHANICAL PROPERTIES AND ANTI-CORROSION OF EPOXY COATING

Abstract

Among organic coatings, epoxy coating is an excellent material for corrosion prevention in structural metals in Vietnam’s tropical marine climate conditions. This
article presents some survey results of physico-mechanical properties and anticorrosion of epoxy coating which combined with nanocomposite AgCu/SiO2. The physico-
mechanical properties are determined according to international standards, corrosion resistance test of epoxy coating is carried out according to ISO 9227:2017. The
survey result showed that, the epoxy coating combined with 1.0% AgCu/SiO2 nanoparticles, adhesion increased by 13.4%, impact resistance increased by 9.1%, hardness
of coating increased by 10.5%, abrasion resistance decreased by 20.0%, other properties have not changed much. After 720 hours of testing (30 test cycles), the epoxy
coating combined with 1.0% AgCu/SiO2 nanoparticles, the degree of blistering has reached S0, the degree of cracking - S1, the degree of flaking - S2, the degree of
rusting - S0 and adhesion is reduced from 5.06 MPa down to 4.91MPa.