A kind of preparation method of solvent-type brittle self-stripping radioactive detergent

Abstract

The invention discloses a preparation method of a solvent-based brittle self-peeling radioactive detergent. The preparation method comprises the following steps: adopting methacrylic acid as a soft monomer in a free radical polymerization product, methyl methacrylate as a hard monometer in the free radical polymerization product and acrylamide as a functional monomer in the free radical polymerization product; adding nanosilicon dioxide with different grain sizes and a functional additive in the preparation process of the detergent. The detergent obtained by the preparation method can be used in an environment of below 0 DEG C and cannot generate an icing phenomenon; meanwhile, when the decontamination is performed on the surfaces of a precision instrument and equipment, instrument and equipment short circuit and other faults possibly caused by the aqueous detergent are avoided; as the nanosilicon dioxide with different grain sizes is added in the preparation process of the detergent, a peeling effect between a coating brittle chip and the equipment is improved, so that the coating brittle chip is more easily subjected to brittle rupture and peeling from the surface of the equipment.

Description

technical field [0001] The invention belongs to the technical field of nuclear pollution decontamination, and in particular relates to a preparation method of a solvent-type brittle self-stripping radioactive decontamination agent. Background technique [0002] In nuclear decommissioning and various nuclear emergency response, the removal of radionuclide contamination is a key issue. Decontamination refers to the process of removing or mitigating surface radioactive contamination. The purpose of decontamination is to reduce the radioactive activity of facilities and the environment, so as to realize the continued safe use of facilities or open the site. The essence of the decontamination process is to transfer radioactive pollutants from the surface of the decontamination object to secondary waste. Most of the decontamination technologies are transplanted from other technical fields, and then improved and developed according to the working characteristics of radioactive dec...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a preparation method of a solvent-based brittle self-stripping radioactive stain remover, which aims to solve the problem that the existing peelable decontamination paint will freeze when used in an environment below zero degrees Celsius Phenomenon, resulting in unchanged use, and at the same time, when decontaminating the surface of precision instruments and equipment, the water-based decontamination coating may cause problems such as short circuits and other faults in the equipment

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