Synthesis and characterization of ZnO nanoparticles for modifying thermal and mechanical properties of industrial substrates

In this experimental study, zinc oxide nanoparticles (ZnO-NPs) are synthesized using Moringa oleifera extract and calcined at 400 degrees C. These biologically synthesized ZnO-NPs were mixed in 1:1 proportion with organic (oil) and quasi-organic (varnish) binder separately. These mixtures were individually coated on three substrates: paper, wood, and fabric (P, W, and F). The effect of the coating of NPs on the mechanical and thermal properties of the substrate was observed. XRD investigation revealed the formation of a wurtzite structure of synthesized NPs with a crystallite size of 28 nm. The morphology of ZnO-NPs, uncoated and coated P, W, and F substrates were studied by field emission scanning electron microscopy (FESEM). Our studies reveal that adding ZnO-NPs improved the fire resistance property of the materials. It also shows a measurable increase in the materials' tensile strength by adding ZnO-NPs.

Automated summary

In this study, zinc oxide nanoparticles were synthesized using a plant extract and coated on different substrates. The coating of nanoparticles improved the fire resistance property and tensile strength of the materials.