1. What are the characteristics of high-temperature coatings?
1. First of all, high-temperature resistant coating is an energy-saving space thermal insulation coating, which is convenient for us to use. (Space energy-saving and heat-insulating coatings include high-temperature and normal-temperature coatings), which is the first in the world. The coating is an inorganic one-component, adopts a special solution and has no peculiar smell. In the temperature range (-80- 1800℃), the high-temperature resistant thermal insulation coating is only 0.03W/m.K, with radiation heat and heat conduction.
2. Secondly, the heat insulation inhibition efficiency can reach about 90%, which meets our needs. It can inhibit the heat radiation and heat loss of high-temperature objects, effectively keep cold for low-temperature objects, inhibit the loss of cold caused by environmental radiation heat, and prevent condensation on objects. High-temperature resistant coatings can also be used as high-temperature resistant adhesives, which can resist the temperature of 1800℃ or even higher, and can be used as ceramics,
3. finally. Coating materials such as metal. It can also be used as an adhesive for ceramics, glass, metals, etc. , is used in many places. Widely used in metallurgy, petroleum industry, natural gas exploitation, aerospace and other industrial fields. Apply to the surface of metal and other objects at room temperature, and dry at low temperature or self-dry at room temperature. Its adhesion to metal is very good and hard, so it can't be scraped off with a blade. After high-temperature calcination, the strength is more obvious, it does not crack, and it can withstand the high temperature of 1800 degrees, aluminum, ceramics, glass and other surfaces.
Second, how to make high temperature resistant coatings
When making 1., the raw materials for preparing aluminum phosphate coatings can be divided into three parts: Let's take a look. The base material consists of Hp5 solution, CrO3 and active pigment; The pigment is aluminum powder; The diluent is distilled water. In a three-neck flask reactor, phosphoric acid and Al(OH)3. MgO powder reacts to form an aqueous solution of aluminum dihydrogen phosphate and magnesium dihydrogen phosphate, which is called Hp5 solution. 2-4% CrO3 is added into Hp5 solution for dissolution,
2. It is also very important to react with a certain amount of reactive pigments in the ball mill. An orange suspension is obtained, which is the basic material of the coating. The coating base material and aluminum powder pigment are mixed according to a certain proportion, and dispersed at high speed for about half an hour to obtain the phosphate aluminum powder coating. Because granular aluminum powder is used as pigment in the formula, it is easy to precipitate and agglomerate.
3. Adding anti-settling agent during processing will reduce the conductivity of the coating. We also know that. In addition, aluminum powder will react slowly when it contacts acidic substrate for a long time. In order to avoid the above shortcomings, the base material and aluminum powder pigment are canned separately. Stir before construction, use water as diluent, and adjust to the appropriate construction viscosity. The service life of ready mixed paint is not strictly limited, but it can be used every few days.
The above content is introduced by Bian Xiao. What are the characteristics of high-temperature paint, so that when we use this kind of material, it is also a good UI, which is very smooth and gives our home a good environment.