Gamma-ray radiation protection composite material and preparation method thereof

A composite material and radiation protection technology, applied in the field of γ-ray radiation protection, can solve the problems of unsatisfactory radiation resistance, difficult production and processing, and poor processing performance of products, and achieve easy production and processing methods, convenient production and processing, and high processing performance. Good results

Inactive Publication Date: 2019-03-08
SICHUAN UNIV
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  • Abstract
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  • Claims
  • Application Information

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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 prepa

Method used

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  • Gamma-ray radiation protection composite material and preparation method thereof
  • Gamma-ray radiation protection composite material and preparation method thereof
  • Gamma-ray radiation protection composite material and preparation method thereof

Examples

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Example Embodiment

[0020] Specific examples are given below to further illustrate the technical solutions of the present invention, but it should be noted that the following examples should not be construed as limitations on the protection scope of the present invention. Some non-essential modifications and adjustments still belong to the protection scope of the present invention.

[0021] Table 1: Component composition (in parts by weight) of γ-ray radiation protection composite materials in Examples 1-5

[0022]

[0023] In each of the above embodiments, the maleic anhydride graft-modified LLDPE resin, the LLDPE resin to be modified is a resin with a melt index (MI): 0.25-4.00. Modified maleic anhydride grafted LLDPE resin prepared by melting and grafting at 180°C with maleic anhydride as the grafting monomer and DCP (dicumyl peroxide) as the initiator. The amount of maleic anhydride is LLDPE. 5%, DCP dosage is 0.5% of LLDPE.

[0024] Preparation of γ-ray radiation protection composite ma...

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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...

Claims

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Application Information

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IPC IPC(8): C08L51/06C08L27/12C08L23/06C08L91/06C08K3/08
CPCC08K2003/0837C08L51/06C08L27/12C08L23/06C08L91/06C08K3/08
Inventor 孙杨宣包建军侯世荣
Owner SICHUAN UNIV
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