Coating classification: radon proof interior wall coating

Core tip: Introduction: There are many natural radionuclides on the earth People are inevitably exposed to all kinds of natural radiation The radiation from radon and its progeny is the largest, accounting for 49% of the natural radiation Under the long-term radiation of high concentration radon, human can cause lung cancer, leukemia, respiratory tract and other diseases Radon is easily adsorbed by porous materials such as rubber, clay and activated carbon Indoor radon pollution mainly comes from foundation soil and building materials Because people spend two thirds of their time in their own rooms, we must attach great importance to indoor radon pollution 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 Introduction: there are natural radionuclides on the earth People are inevitably exposed to all kinds of natural radiation The radiation from radon and its progeny is the largest, accounting for 49% of the natural radiation Under the long-term radiation of high concentration radon, human can cause lung cancer, leukemia, respiratory tract and other diseases Radon is easy to be absorbed by porous materials such as rubber, clay and activated carbon Indoor radon pollution mainly comes from foundation soil and building materials Because people spend two thirds of their time in their own rooms, we must attach great importance to radon pollution in the room environment In order to prevent indoor radon pollution, it is necessary to take measures (such as coating anti radon coating) to prevent radon pollution in the existing buildings with potential high radon, in addition to avoiding building construction in potential high radon risk areas, strictly controlling the content of radionuclides in building materials and improving indoor ventilation conditions Basic principle: in radon measurement technology, polyester membrane is used as filter membrane to isolate water vapor, radon and its daughters This shows that measures can be taken to isolate radon in wall materials, prevent it from spreading indoors, let radon diffuse outdoors, or naturally decay into solid daughters in the wall Therefore, the anti radon coating should be able to form a very dense film first, followed by the addition of functional materials (or anti radon agent) in the coating, so as to further enhance the compactness of the film and the isolation of radon Formula design: Determination of radon proof performance: the sealing method and local static method are usually used to determine the radon proof performance of the coating 1 The basic principle of measuring radon exhalation rate on the surface of coating and other building materials by sealing method is to seal the samples to be tested before and after coating in a closed container, so that the radon gas escaping from the samples can be accumulated continuously After a certain period of time, the gas in the container can be collected or transferred for radon activity analysis, and then the radon exhalation rate and radon prevention efficiency can be calculated accordingly 2 The basic principle of local static method is to place an accumulation box made of airtight material on the surface of the sample to be tested One side of the opening of the accumulation box is close to the surface of the building, and the surrounding area is sealed with sealing materials to form the accumulation space After a certain period of time, collect the gas in the box Through radon activity analysis, radon exhalation rate and radon prevention efficiency are calculated 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,