Self-assembled thermal-resistant coating

Abstract

The invention relates to the technical field of coatings and aims to provide a self-assembled thermal-resistant coating which contains the following components in parts by weight: 4-5 parts of sodiumborate, 5-6 parts of zinc borate, 3-4 parts of aluminum oxide, 1-2 parts of nano silica powder, 6-7 parts of titanium dioxide, 0.5-1.5 parts of neodymium oxide, 9-10 parts of white mica, 8-10 parts ofhydrotalcite, 3-5 parts of zeolite, 2-4 parts of sodium aluminosilicate, 2-4 parts of cellulose nitrate, 4-5 parts of a butyl acrylate resin, 10-11 parts of a pure acrylic emulsion, 10-11 parts of apolyurethane emulsion, 0.5-1.5 parts of lysine, 1-3 parts of asparaginic acid, 1-3 parts of tributyl phosphate, 2-3 parts of propylene glycol and 4-28 parts of distilled water. The thermal-resistant coating can be directly applied to the surface of an aircraft and can be completely cured at a room temperature; after the coating is cured, the surface of the coating is heated for 5 seconds with hotair, and then the thermal resistant temperature of the cured coating can be up to 1000 DEG C; and small pores of which the diameter is 2-10 micrometers can be formed in the surface of the coating, andthen the heat conductivity of a coated layer can be rapidly degraded.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a self-assembled heat-resistant coating. Background technique [0002] Due to the viscous effect of the gas, the aircraft flying at high speed in the atmosphere will cause the air to be strongly compressed and have strong friction with the air, so that most of the kinetic energy of the aircraft is converted into heat energy, and the heat energy is quickly transferred to the surface of the aircraft, resulting in Aerodynamic heating effect. The faster the flight speed of the aircraft, the more significant the aerodynamic heating effect. The high temperature generated by the high-speed flight of the aircraft will affect the working status of the core components of the aircraft such as electronic devices and power systems in severe cases. [0003] In order to reduce the impact of the aerodynamic heating effect when the high-speed aircraft is flying, a layer of high-temperature-res...

AI Technical Summary

Problems solved by technology

However, it is difficult for the current post-painting heat-resistant paint to be able to withstand high temperatures above 500°C; if higher heat-resistant temperatures are required, it is necessary to perform high-temperature resistant treatment on the surface of the aircraft shell before loading the core components inside the aircraft. The treatment process requires high-temperature treatment, and the core components inside the aircraft can only be loaded after the aircraft shell is cooled; but if the surface after the high-temperature treatment has defects or damage again, the high-temperature treatment needs to unload all the core components inside the aircraft Therefore, this method has no obvious advantages in terms of efficiency or cost

Images