Preparation process of heat insulation coating

Abstract

The invention discloses a preparation process of a heat insulation coating, comprising the following steps: adding sodium silicate into rare earth zirconium with the molar ratio of 2 to 8%, foaming, roasting and shaping to form vitrified balls, and steeping in base for latter use; finely grinding perlite, heating and roasting in stage to prepare hollow ceramic balls with closed pores for latter use; heating the sodium silicate to the temperature of 80 to 90 DEG C, adding the modifying agent with the molar ratio of 12 to 18% for modification, and preparing aqueous inorganic high temperature adhesive for latter use; processing metal titanium chloride under certain conditions to prepare hollow balls coated by active rare earth titanium; adding water into inorganic fiber and hydroxycellulose, dispersing at high speed to prepare the slurry for latter use; mixing 8 to 12 parts of the material obtained in step (1), 10 to 15 parts of the material obtained in step (2), 45 to 52 parts of the material obtained in step (3), 28 to 38 parts of the material obtained in step (4), and 5 to 8 parts of the material obtained in step (5) by weight part under room temperature, and adding 0.5 to 1 part of dispersing agent, 0.5 to 1 part of thickening agent and 0.2 to 0.4 part of defoamer to reach the certain viscosity to finally obtain the finished product.

Description

technical field [0001] The invention relates to a preparation process of thermal insulation paint, in particular to a preparation process of high temperature active rare earth and nanometer titanium coated porcelain glass hollow microbead thermal insulation paint. Background technique [0002] Insulation coatings are suitable for heat insulation of large oil tanks, heat preservation of heat medium storage tanks, low, medium and high pressure steam and heat medium pipelines, reaction kettles, heat preservation of heating devices and external heat preservation of high temperature furnaces, etc. [0003] At present, this field is developing rapidly at home and abroad. For various traditional heat preservation methods, it is a revolutionary development in many aspects such as use effect, space occupation, energy saving and environmental protection. [0004] However, the main shortcomings in this field are: [0005] 1. Due to the use of organic binders, thermal insulation coatin...

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Problems solved by technology

[0007] 3. At present, the reasons why high-temperature coatings are difficult to promote include high cost and difficult construction technology (requires heating and curing), etc.

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