Effect of ZnO Nano Powder on Mechanical Properties of Epoxy/Polyaminoamide Adduct Coatings
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.
In this investigation, bulk ultra-fine grained and nanocrystalline Al-2 wt.% Fe alloy was produced by mechanical alloying (MA). The powder was mechanically milled in an attritor for 3 hours and…
In this study the effect of Ag Nano powder on mechanical properties of epoxy coatings filled with optimized ratio of conducting polymers (Polyaniline and Polyppyrole) was evaluated. Bisphenol A…
This work reports the effect of Zinc Oxide Nano powder on mechanical properties of Epoxy coating.