Effect of ZnO Nano Powder on Mechanical Properties of Epoxy/Polyaminoamide Adduct Coatings

Conference Paper

• Publication Work Type: Conference Paper
• Conference Name: ICCEeT 2013
• Conference Location: Dubai
• Conference Date: Monday, November 4, 2013

Publication Abstract

This work reports the effect of Zinc Oxide Nano powder on mechanical properties of Epoxy coating. Bisphenol A diglycidyl ether epoxy resin (DGEBA) formulated with an optimized stoichiometric value of polyaminoamine adduct (ARADUR-PA450) as a curing agent at ambient temperature, is filled with different loadings of ZnO Nano powder (0, 1, 1.5, 2%). Steel and glass substrates were used as coating samples. A thin layer coating was applied by using bird applicator with wet film thickness (WFT) about 60-90 μm. The samples were kept for five days in a dust proof environment for complete curing at ambient temperature. The coated glass samples were used for pendulum hardness measurements while coated steel samples were used for scratch test, mandrel bend and cross hatch test. The dispersion of nano powder and morphology in the epoxy matrix were analyzed by using scanning electronic microscopy (SEM). Nano indentation was used to observe the young’s modulus and hardness of the coating at nanometer level.