Nanostructured Thermal Insulating Coatings with Modified Properties Produced in the Middle East

Nanostructured Thermal Insulating Coatings with Modified Properties Produced in the Middle East

Middle East researchers from University of Kashan and Space Research Center produced a thermal insulating nanocomposite coating with optimum thermal, corrosion and abrasion performance.


The coatings can be used in the synthesis of sensitive industrial objects in aerospace industry for production of thermal insulators, bodies used in ultrasonic and unstable conditions, gas turbines, cutting pieces and vessels to carry molten metals.


Phenolic resin is one of the materials used as polymeric matrix in high temperature nanocomposites. Despite some advantages, phenolic network has a number of limitations. Its coal is easily damaged by mechanical corrosion and the surface of the insulator is harmed faster. In other words, the performance time decreases as the insulator thickness reduces. This research tries to use super high temperature non-oxide nanoparticles to improve thermal and mechanical properties of the resin in the operational conditions of high temperature space structures as the filler phase.


Nanocomposite coatings produced in this research are able to stand much higher temperature than the similar samples containing micrometric fillers. In addition, much less amount of nanoparticles are used in comparison with micrometric particles due to the application of nanoparticles and the high ratio of surface to volume. This fact results in a decrease in the production cost.


Zirconium diboride nanoparticles have been synthesized and used in this research as the filler phase in the phenolic resin-based nanocomposite. These particles are combusted at high temperature in the presence of oxygen. Then, the oxidized particles are molten and they fill the pores of the polymer. Therefore, they prevent flame and oxygen to diffuse into the substrate.