High-temperature thermal-insulation anticorrosive nano coating and its preparing method

Abstract

The invention discloses a kind of new industry dope. It comprises such materials as 95 - 105 weight shares of Component A, and 1 - 3 weight shares of Component B; thereinto, Component A is made from following weight percents of materials: cementing agent 30-60%, pigment 12 - 30%, filling agent 10 - 30%, auxiliary agent 0.1 - 5%, compound nanometer dispersing agent 5 - 15% and solvent 10 - 25%; Component B is comprised of catalyzed membrane forming agent - nanometer Sb2O3 and mixed organic solvent carriers. The invention firstly brings nanometer Sb2O3 into high temperature heat preservation dope as catalyzer in dope membrane forming process. The dope of the invention has following advantages: it has high temperature heat preservation and heavy anticorrosion performances, and the coat has good acid resistance, alkali resistance, salt mist resistance, oil resistance, chemical reagent resistance, waiting resistance and ultraviolet resistance; it has excellent fire protection and waterproof performance; the clinging strength of smearing membrane is good, membrane forming speed is fast, and performance is stable.

Description

technical field

[0001] The invention relates to a coating, in particular to a high-temperature thermal insulation and anti-corrosion nano coating and a preparation method thereof, belonging to the field of chemical industry. Background technique

[0002] High-temperature thermal insulation coatings are widely used in many industries such as petroleum, chemical industry, metallurgy, electric power, thermal power, machinery, construction, etc., but problems such as high-temperature oxidation and corrosion are common in use. In order to solve this problem, domestic and foreign scholars have carried out a lot of research since the 1970s, and have launched many successful products successively. However, the film-forming process of these coatings is relatively complicated, such as magnetron sputtering, arc spraying, and plasma spraying, which are expensive. At the same time, most products do not have the functions of high temperature resistance, high-efficiency heat preservation ...