Gamma-ray radiation protection composite material and preparation method thereof

Abstract

The invention provides a gamma-ray radiation protection composite material and a preparation method thereof. The radiation protection composite material takes maleic anhydride grafted modified linearlow density polyethylene (LLDPE) as matrix resin and a low-melting-point bismuth alloy as a radiation protection agent, a rheological modifier and an antioxidant are matched, so that the gamma-ray radiation protection composite material is prepared. The preparation method includes the steps: mixing components according to determined component proportion; placing mixture into a mixer; melting and blending the mixture at the temperature of 160-180 DEG C to prepare the composite material. The gamma-ray radiation protection composite material has good toughness, low-temperature resistance and ageing resistance and excellent anti-radiation performance, and a production method is easy. The gamma-ray radiation protection composite material has a wide application prospect in the field of aerospaceindustry, nuclear power, radioactive medicine and the like.

Description

technical field [0001] The invention relates to the technical field of gamma ray radiation protection, and more specifically relates to a composite material for protecting gamma ray radiation and a preparation method thereof. Background technique [0002] In recent years, with the rapid development of my country's aerospace industry, nuclear power, radiation medicine and other fields, more and more attention has been paid to the impact of various rays produced by radiation on humans and the environment. Among them, γ-ray is an electromagnetic wave with short wavelength, strong penetrating ability and high energy, which can cause cell mutation, hematopoietic function deficiency, cancer and other diseases. Traditional γ-ray radiation protection materials mainly use lead plates, leaded glass, concrete, heavy metal oxides, and high-hydrogen organic compounds to separate the γ-ray radiation source from people’s working and living environments to protect the human body from the ef...

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Problems solved by technology

[0004] In view of the deficiencies in the existing gamma ray radiation protection material technology, the purpose of the present invention is to provide a new gamma ray radiation protection composite material and its preparation method to solve the processing performance of the gamma ray radiation protection material in the prior art Poor, difficult production and processing, unsatisfactory radiation resistance of the prepared product, etc.

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