A method of preparing a surface coating of flexible insulation blankets

A method of preparing a flexible insulating mat surface coating, the present invention relates to insulation blankets surface coating, it is high-temperature thermal protection art. The present invention is to solve the poor and the low emissivity coefficient of thermal deformation of the flexible micro Technical Problem mat surface coating. Method: I. Preparation of alumina sol; two, chopped fibers pretreated silica; three, slurry preparation; Fourth, spraying, and dried. The present invention coating formulations and by optimizing the control system of the drying coating, air spraying process using a composite coating layer having a micro-deformation of certain coordination is coated on the surface of the flexible insulation blankets, insulation blankets to improve flexibility in harsh environments durability and thermal radiation. The present invention for preparing the surface of a flexible insulation blankets high emissivity coating.