Indoor radiation-proof coating and preparation method

Abstract

The invention discloses an indoor radiation-proof coating and a preparation method. The coating comprises the following raw materials: water soluble wax, a styrene-acrylic emulsion, waterborne polyurethane, graphene, ferrite powder, barium sulfate, ferric sulfate, pasted attapulgite clay, diatomite, a defoamer and a pigment. The preparation method comprises the following steps of: firstly, performing a modifying reaction on the waterborne polyurethane and the graphene, then adding the water soluble wax and the styrene-acrylic emulsion, and stirring the mixture to react to obtain a mixture a1; adding the ferrite powder, barium sulfate and ferric sulfate into the mixture a1, and mixing and shearing the mixture a1 to obtain a mixture a2; and adding the pasted attapulgite clay, diatomite and the defoamer into the mixture a2, then adding the pigment, and uniformly mixing the mixture to obtain the radiation-proof coating. The coating disclosed by the invention has a relatively good radiation-proof effect, effectively reduces influence of electromagnetic radiation on human health, and is free of lead addition, so that the coating is safer.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to an indoor anti-radiation coating and a preparation method. Background technique [0002] With the rapid development of modern science and technology, an invisible and intangible source of pollution has attracted increasing attention from all walks of life, which is electromagnetic radiation known as the "invisible killer". For the human body, a good conductor, electromagnetic waves will inevitably pose a certain degree of harm. [0003] With the wide application of radiation in the fields of medical and health, national defense and military industry, scientific research, industry, agriculture, etc., especially X and γ-rays have become the most widely used ionizing radiation; radiation technology has brought huge economic benefits to society, but another On the one hand, due to its high energy and strong penetrating power, it has different degrees of damage to human physiologica...

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Problems solved by technology

[0003] With the wide application of radiation in the fields of medical and health, national defense and military industry, scientific research, industry, agriculture, etc., especially X and γ-rays have become the most widely used ionizing radiation; radiation technology has brought huge economic benefits to society, but another On the one hand, due to its high energy and strong penetrating power, it has different degrees of damage to human physiological functions; for example, people who have been exposed to X-rays for a long time will have skin burns, hair loss, cloudy eye lenses, leukopenia, and sexual dysfunction. Symptoms; severe cases lead to gene defects and induce cancer; in order to block the radiation of X and gamma rays, early people used lead plates for protection. As we all know, lead is soft and poisonous, and it is easy to creep for a long time. The protection construction procedure is complicated and expensive; X Both gamma rays and gamma rays have strong penetrating power. They can pass through walls and ceilings of buildings with ordinary thickness. Although the radiation intensity has been weakened, it still poses a certain threat to human health.

[0004] Existing anti-radiation coatings and filled anti-radiation materials all contain toxic and harmful substances such as lead and its compounds, volatile organic compounds and free formaldehyde restricted by national standards; in addition, filled anti-radiation materials are filled in the middle of the wall, destroying the The wall has a complete structure, and there are hidden dangers in building safety. During construction and use, if there are cracks or holes in the filling, they cannot be discovered by people, which is a potential hazard.

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