| 摘要 |
The invention relates to the manufacture of heat-shielding coatings designed for structures and equipment used in high-temperature conditions and corrosive environments, and may be used in construction, mechanical engineering, the chemical industry, transport, aviation, space and other industrial sectors. In the proposed high-temperature heat-shielding coating, comprising hollow ceramic or corundum microspheres, a binder and water, the binder is in the form of one of the group consisting of aluminium borophosphate, aluminium chromophosphate, potassium polytitanate or a mixture of aluminium chromophosphate and potassium polytitanate, in the following ratio of constituents: 67-85 wt% microspheres, 10-30 wt% binder, and the rest water. As hollow ceramic microspheres, the heat-shielding coating contains aluminium silicate microspheres of fly ash with a diameter of 3-150 µm and a wall thickness of 1-6 µm or glass ceramic microspheres with a diameter of 3-100 µm and a wall thickness of 0.3-1.0 µm, and as hollow corundum microspheres, the coating contains microspheres with a diameter of 3-90 µm and a wall thickness of 0.5-3.0 µm. |
