Coating knowledge: heat insulation, reflection, heat insulation, coating, principle of heat insulation

It is suggested that more than 97% of the heat source of the building environment is solar radiation, and the next 3% is the decay of the radioactive elements in the earth's core (infrared radiation) and the surrounding pollution Solar radiation, as the heat input from space to the earth's environment, reaches all things on the earth's surface in the form of light and heat (infrared and ultraviolet) The heat source of the building exterior wall surface is visible light, infrared and ultraviolet of the sun and space The heat transmitted from visible light to the outer surface of the building shall not exceed 5%, and the heat radiated from the infrared and ultraviolet rays of the sun and space to the outer wall of the building shall be more than 95% Cosmosuit heat insulation, reflection and insulation 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 Paint House News: more than 97% of the heat source of the building environment is solar radiation, followed by about 3% of the heat is the decay of radioactive elements in the earth's core (infrared radiation) and surrounding pollution Solar radiation, as the heat input from space to the earth's environment, reaches all things on the earth's surface in the form of light and heat (infrared and ultraviolet) The heat source of the building exterior wall surface is visible light, infrared and ultraviolet of the sun and space The heat transmitted from visible light to the outer surface of the building shall not exceed 5%, and the heat radiated from the infrared and ultraviolet rays of the sun and space to the outer wall of the building shall be more than 95% The reflectivity of visible light, infrared and ultraviolet heat is 85%, and the emissivity is 88% That is to say, in summer, more than 95% of the radiant heat on the external surface of the building is reflected back to the atmosphere by the thermal insulation coating, and about 95% * 88% = 83.6% of the heat, and less than 5% of the heat of the visible light is also reflected back to the atmosphere by the thermal insulation coating, and about 85% * 5% = 4.25% of the heat In total, about 87% of the heat on the outer surface of the building is reflected back to the atmosphere by the thermal insulation coating, and about 13% of the remaining heat on the outer surface of the building can enter the wall through the coating heat conduction However, there are hollow ceramic beads with high thermal resistance in the thermal insulation reflection coating (thermal insulation) coating, so the thermal insulation reflection (thermal insulation) coating can block the heat conduction of the remaining 13% of the heat of the leakage net About 13% of the heat can really enter the wall through heat conduction, the total heat will not exceed 5% Therefore, the heat insulation reflection heat insulation (heat insulation) coating realizes that the high temperature on the external surface of the building cannot enter the building interior Thus, it has the function of heat insulation (the booster of spaceship emits high temperature exhaust gas, that is to protect the booster with heat insulation coating) In winter, the outdoor temperature is lower than the indoor temperature The heat in the room is mainly the infrared heat from the human body and the heat from furniture and electrical appliances When the heat is transferred to the surface of the thermal insulation coating, it will be returned to the room by 87% of the thermal insulation coating, and only about 5% of the heat will be transferred to the atmosphere through the coating to lose Therefore, the indoor thermal insulation is realized (the coating used by the submarine realizes the thermal insulation of the cabin) To sum up, in high temperature, the thermal insulation coating realizes thermal insulation with high reflection and high emission; in low temperature, the thermal insulation coating realizes thermal insulation with high reflection and high emission 1 Answer: dark heat insulation reflective heat insulation coating will absorb heat but can be ignored Because the proportion of inorganic pigment (dye) in the coating is less than one thousandth of the quantity, and the colored coating only absorbs the heat of the visible light part, and the heat of the main part (infrared and ultraviolet) will not be absorbed Therefore, the heat absorbed by the colored coating is only about 5 / 100000 2 In cold area, it's better to use heat insulation reflective heat insulation coating indoors and outdoors The heat insulation performance can be overlapped and the effect will be better [focus on WeChat official account "paint net"; pay attention to surprises, scan code to see if your husband is selling paint.. 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