Self-adhered type anti-neutron composite shielding material as well as preparation method and application thereof

A composite shielding and self-adhesive technology, which is applied in the field of shielding materials, can solve the problems of limited application occasions, poor structural adaptability, and difficult construction, and achieve the effects of good conformability, prevention of deformation or relaxation, and appropriate mechanical strength

Active Publication Date: 2017-08-22
BEIJING RADIATION APPL RES CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During construction, the prestress of the product is relatively large, especially when it is applied to outlets, flanges, pipes, baffles, joints, corners, and special-shaped parts of devices with complex shapes. Its structural adaptability is poor and construction is difficult. , so the application of this kind of rubber material with the function of shielding neutrons is greatly restricted;

Method used

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  • Self-adhered type anti-neutron composite shielding material as well as preparation method and application thereof
  • Self-adhered type anti-neutron composite shielding material as well as preparation method and application thereof
  • Self-adhered type anti-neutron composite shielding material as well as preparation method and application thereof

Examples

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Embodiment 1

[0061] This embodiment provides a method for preparing a self-adhesive anti-neutron composite shielding material, which includes the following steps:

[0062] Raw material formula:

[0063] Rubber matrix: 70 parts by weight of EPDM4045, 30 parts by weight of natural rubber;

[0064] Viscosifying polymer: 25 parts by weight of liquid polyisobutylene rubber;

[0065] Reinforcing agent: 35 parts by weight of white carbon black;

[0066] Anti-neutron additive: B 4 15 parts by weight of C, 5 parts by weight of graphite powder, 5 parts by weight of lithium fluoride;

[0067] Vulcanization activator: 5 parts by weight of zinc oxide, 1 part by weight of stearic acid;

[0068] Softener: 5 parts by weight of epoxy soybean oil;

[0069] Vulcanizing agent: 2.0 parts by weight of S-80;

[0070] Vulcanization accelerator: 1.5 parts by weight of ZBEC80, 0.5 parts by weight of zinc isopropyl xanthate ZIX, 1.5 parts by weight of DPG80;

[0071] Antiaging agent: 3 parts by weight of micr...

Embodiment 2-6

[0078] Embodiment 2-6 respectively provides a kind of preparation method of self-adhesive type anti-neutron composite shielding material, and its difference with embodiment 1 is only that the radiation absorbed dose is different in the pre-crosslinking process, used in embodiment 2-6 The absorbed doses of radiation are: 30kGy, 70kGy, 90kGy, 110kGy and 130kGy.

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Abstract

The invention provides a self-adhered type anti-neutron composite shielding material as well as a preparation method and application thereof. The shielding material is prepared from the following raw materials in parts by weight through radiation pre-crosslinking treatment: 100 parts of a rubber susbtrate, 5-50 parts of a tackifying agent polymer, 10-100 parts of a reinforcing agent, 20-200 parts of an anti-neutron additive, 0-50 parts of a softening agent, 0.5-10 parts of a vulcanizing agent, 0.5-5.0 parts of a vulcanization promoter, 0.5-10 parts of a vulcanization activator and 0-5.0 parts of an anti-aging agent. The invention further provides a preparation method of the shielding material and application of the shielding material in complex equipment or irregular parts. The self-adhered type anti-neutron composite shielding material provided by the invention has certain initial crosslinking degrees and self adhesion properties, is good in shape flow property, can be cured by self after being shaped, and has appropriate mechanical strength.

Description

technical field [0001] The invention relates to a self-adhesive anti-neutron composite shielding material, a preparation method and application thereof, and belongs to the technical field of shielding materials. Background technique [0002] With the continuous promotion and application of non-power nuclear technology in various fields in my country, neutron technology has been widely used in many fields such as material science, nuclear technology, and medicine. At the same time, the damage caused by radiation to the human body and the damage to the environment have gradually been recognized by human beings. In order to prevent or reduce the harm of radiation rays to human beings, radiation protection is required during the application of radiation, and radiation protection mainly depends on the performance of radiation shielding materials and the optimal design of radiation shielding structures. However, with the development of the application field of radiation technolog...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/16C08L7/00C08L23/20C08L91/00C08L91/06C08K13/02C08K3/36C08K3/38C08K3/04C08K3/16B29C35/08B29L7/00
CPCB29C35/08B29L2007/002C08L23/16C08L2205/02C08L2205/035C08L2312/06G21F1/103C08L7/00C08L23/22C08L91/00C08L91/06C08K13/02C08K3/36C08K3/38C08K3/04C08K3/16
Inventor 程安仁矫阳王连才陆永俊张龙曾心苗鲍矛赵雪娜汪文昭张艳霞
Owner BEIJING RADIATION APPL RES CENT
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