A kind of heat-resisting thermal insulation coating and preparation method thereof

Abstract

The invention relates to high-temperature-resistant thermal isolation and heat insulation paint and a manufacturing method thereof. The paint is prepared from the following composition ingredients in parts by weight: 10 to 20 parts of lithium sodium silicate composite solution, 5 to 20 parts of water-borne phenolic resin, 30 to 50 parts of ceramic hollow micro beads, 10 to 30 parts of short ceramic fiber, 1 to 6 parts of bentonite, 1 to 8 parts of flake aluminum powder, 0.5 to 3 parts of preservatives, 0.5 to 3 parts of stabilizing agents, 0.5 to 3 parts of aqueous dispersants, 0.5 to 5 parts of coupling agents, 0.2 to 0.8 part of carboxymethylcellulose and 0.1 to 3 parts of pH regulators. When the paint is used under the conditions of the temperature resistant amplitude being -80 to 1300 DEG C and the temperature being 25 DEG C, the coating heat conduction coefficient is only 0.03 W / m*k; the curing time is shortened by the paint; the coating glazing temperature is reduced, so that the temperature is lowered from the conventional temperature of 800 DEG C to 600 DEG C; the vacuum structure compactness of a coating film is improved; the radiation heat and the heat conduction of infrared rays can be effectively inhibited and shielded.

Description

technical field

[0001] The invention belongs to the technical field of coatings, in particular to a high-temperature-resistant heat-insulating coating and a preparation method thereof. Background technique

[0002] With the gradual strengthening of domestic environmental protection awareness and the shortage of energy, energy conservation and emission reduction are imperative. Therefore, effective heat insulation and anticorrosion measures must be taken on the surface of high-temperature equipment such as industrial transportation heat pipes, kilns, and high-temperature valves to reduce heat. Loss, saving energy while preventing operators from being scalded. However, the traditional high-temperature-resistant thermal insulation coating has a long curing time, poor vacuum-dense structure of the coating, poor waterproof and anti-corrosion function, high glazing temperature of the coating, which cannot save energy to the maximum extent, troublesome construction, and inconvenien...