Super-soft X/gamma ray protective material and preparation method thereof

Abstract

The invention discloses a super-soft X / gamma ray protective material which is characterized by comprising the following components: 5-97 wt % of a crystallized X / gamma ray absorption functional body,2.8-93 wt % of a matrix component and 0.2-2 wt % of an assistant; the crystallized X / gamma ray absorption functional body is a crystallization compound with a median particle size D50 of more than 10microns. The anti-radiation product disclosed by the invention has the advantages of multiple breakthrough in flexibility, hardness, bending rigidity, tensile strength and tearing strength, so that not only can the protection performance of X / gamma rays be met, but also the performance requirements of radiation protection materials can be met, the radiation absorption function body is subjected tocontrollable production, and the product protects the human body from being irradiated by the X / gamma rays, the working life is convenient to implement, the production is easy, the product is environment-friendly, and the social significance is not measurable.

Description

technical field [0001] The invention relates to an X / γ-ray protective material, in particular to a supersoft X / γ-ray protective material and a preparation method thereof. Background technique [0002] X / γ-rays can penetrate materials with a certain thickness, and can make fluorescent materials emit light, photosensitive latex of cameras, and ionize gases, and can also excite inner layer electrons, which can be used in medical imaging, material composition analysis, safety testing, etc. With more and more occasions, the importance of protection against ionizing radiation from X / γ rays in life and work is self-evident. [0003] The three attenuation modes of X / γ-ray photoelectric effect, Compton effect and electron pair effect are respectively proportional to the fourth power, first power and second power of the atomic number of the substance, so the atomic number of the substance and The density of the product directly determines the quality of the substance’s X / γ-ray shield...

AI Technical Summary

Problems solved by technology

[0003] The three attenuation modes of X / γ-ray photoelectric effect, Compton effect and electron pair effect are respectively proportional to the fourth power, first power and second power of the atomic number of the substance, so the atomic number of the substance and The density of the product directly determines the quality of the substance’s X / γ-ray shielding performance. Traditional X / γ-ray protection products use rigid products such as lead, tungsten, concrete, and cement. Thickness, rigidity and high density are the guarantee of safety. It is obvious that it is inconvenient to carry, install and use. The X / γ-ray products with real protective effect enter ordinary families, and the daily working environment is even more unbelievable.

[0004] There are also developments of flexible products, but in order to meet the X / γ-ray protection function, there are many problems such as complex manufacturing process, high manufacturing process cost, high hardness, high material cost, not supple enough, and lead content: by adding plasticizers to The flexibility is improved, but the problem of simultaneous aging cannot be solved, and the product is easy to harden; the flexible rare earth oxide products on the market are easy to absorb moisture, and the finished product is easy to swell and bulge, and the protective properties are destroyed; the particles are small and easy to agglomerate, and cannot be mixed evenly with the binder

However, the flexibility, flexural resistance and hardness of the material have not been improved

[0008] The authorized announcement number is 101591457B, and the title of the invention is "rubber-based flexible shielding material and its preparation process". There is room for improvement in density, powder content, and flexibility of the final product

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