Coating classification: conductive heating coating

Core tip: conductive heating coating, also known as electric heating coating, as a new functional coating, is a new functional coating developed on the basis of conductive coating with excellent electric heating characteristics, which has a wide application prospect Classification of conductive heating coatings: According to whether to add conductive materials, it can be divided into two categories: additive type and non additive type The base material of additive electrothermal coating does not have conductivity, so it must be mixed with conductive filler or conductive assistant The base material of non additive electrothermal coating can conduct electricity by itself, and no other conductive materials need to be added According to the Which is the price of Dajin diatom mud Recommended brief introduction: which is the price of Dajin diatom mud? How to buy genuine diatom mud? Guangdong diatom mud agent suggests placing a basin of cold water in the air conditioning room, so that the diatom mud wall can breathe effectively The feature of the breathing wall is obvious When the indoor air is dry, the diatom mud wall will release the absorbed water quickly Put it out to help regulate the indoor dry humidity It is suggested to place a basin of cold water in the air conditioning room, so that the wall of diatom mud can breathe effectively The feature of the wall that can breathe is obvious When the indoor air is relatively dry, the wall of diatom mud will absorb the water Coating home news: conductive heating coating, also known as electric heating coating, as a new functional coating, is a new functional coating developed on the basis of conductive coating with excellent electric heating characteristics, which has a wide application prospect Classification of conductive heating coating: according to whether to add conductive materials, it can be divided into two categories: additive type and non additive type The base material of additive electrothermal coating does not have conductivity, so it must be mixed with conductive filler or conductive assistant The base material of non additive electrothermal coating can conduct electricity by itself, and no other conductive materials need to be added According to the type of binder, it can be divided into two categories: inorganic electrothermal coating and organic electrothermal coating Inorganic electrothermal coating belongs to additive electrothermal coating, which is mainly made up of precious metal filler, metal oxide filler, carbon black powder, graphite powder, carbon fiber and inorganic salt materials as conductive filler and alkali metal silicate as binder Organic electrothermal coatings need to add one or more organic binders to have conductivity According to the curing conditions, it can be divided into room temperature curing type, heat curing type, high temperature sintering type and UV or high energy radiation trapping type According to the surface heating temperature, it can be divided into low temperature coating (the surface heating temperature range is 50-100 ℃), medium temperature coating (the surface heating temperature range is 100-150 ℃), medium temperature coating (the surface heating temperature range is 150-200 ℃), medium high temperature coating (the surface heating temperature range is 200-250 ℃), and high temperature coating (the surface heating temperature is more than 300 ℃) Application of conductive heating coating: it can be used in heating room in architecture For example, Suzuki in 1991 developed a water heater device with electric heating coating and solar cell The charging capacity uses solar cell as the power supply and electric heating coating as the heating body, which can fully meet the requirements of residents' water consumption The voltage is only under 24 V, and the safety is very high In addition, transparent electric heating coating is used to prevent the window glass Ice formation; reports of melting snow on the runway and road with electric heating paint and electric toilet also appear occasionally; applications in daily life, such as electric heating dining table, electric heating desk, electric blanket, electric water heater and electric fresco; industrial low-temperature baking electric stove, such as food oven and wood In agriculture, it can be used as seed drying and seedling raising; in chemical industry, it can be used as heat preservation of oil pipeline Development of conductive heating coatings: aemeehemieals & insulation in the United States, rdfshieldinglt (RFs) in the United Kingdom and Showa electric in Japan The electrothermal coating developed by the relevant researchers of coating companies is mainly made of silicate and organic polymer as binder, adding carbon black, graphite, metal system or metal oxide materials to make electrothermal coating, also known as electrothermal paint Its principle is to use the conductive property of the conductive coating to convert the electric energy into heat energy, but its disadvantage is that the heating temperature of the coating is not high, it is easy to fall off, the heat resistance of the binder is not strong, the local point is easy to burn, the conductive filler is easy to oxidize and the coating structure often cracks, resulting in the deterioration of the coating in the use process Since the 1970s, more attention has been paid to the research and application of the semiconductor film represented by SnO2 Although the semiconductor film has good heat resistance, it is difficult to be popularized because of the special equipment, complex process, high cost and low yield, which needs to be processed at high temperature and certain requirements for the substrate In the early 1980s, Guitian Chemical Industry Co., Ltd of Japan used pure silicone resin to add inorganic conductive filler and glass material to prepare high temperature coating that can withstand about 500 ℃ However, due to the high price of pure silicone resin, poor adhesion and weak intermolecular force of resin, it is not easy to fully cure, and the film has poor solvent resistance The research of electrothermal coatings in China started late, mainly made of precious metal fillers, synthetic resins and various additives by mechanical mixing However, due to a series of problems such as high price and insufficient properties, its practical use is restricted In addition, a leading Silicate Research Institute in Tianjin uses silica sol, carbonate, oxide and other base materials, graphite, additives and diluents to prepare inorganic electrothermal coating However, due to its poor adhesion, complex film-forming process and high curing temperature, it is difficult to widely promote its application Home of coatings is specialized in coatings, diatom mud, paint coating, coating technology, fire retardant coating news and coating, diatom mud, paint coating, coating technology, fire retardant coating decoration knowledge and decoration renderings,