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Neutron and gamma-ray protection latex composite material and preparation method thereof

A composite material and γ-ray technology, which is applied in the field of radiation protection composite materials and their preparation, can solve the problems of very few researches, and achieve the effects of low production cost and good shielding performance.

Inactive Publication Date: 2012-11-28
SICHUAN INST OF MATERIALS & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of the research on protective latex materials at home and abroad is focused on improving the γ-ray shielding performance and mechanical properties, but there is very little research on latex products with neutron / γ-ray comprehensive protection against radiation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] In this embodiment, we produced a latex composite material for neutron and gamma ray protection of the present invention through the following specific production process:

[0023] Weigh B 4 C micropowder 3000g, powder particles ≤3um, sodium dibutyl naphthalene sulfonate 60~96g, weigh NH 3 .H 2 O 600~750g, ball mill until the dispersion aid is evenly dispersed in the powder. Weigh WO 3 Powder 7000g, 10~40um, weigh out 140~224g sodium dibutyl naphthalene sulfonate, NH 3 .H 2 1400~1750g O aqueous solution, ball milled to WO 3 The powder particles are below 20um, and the dispersing aid is evenly dispersed in the powder. Weigh 19000g of the vulcanized natural rubber emulsion and ground it at room temperature (15~30℃). 4 The mixture of C and dispersing aid is slowly poured into the vulcanizate, stirring constantly during the pouring process, while stirring, inject the diffusing agent sodium methylene dinaphthalene sulfonate 30~120g, stabilizer and add O 30~120g, NH 3 .H 2 O 300~...

Embodiment 2

[0026] In this embodiment, we produced a latex composite material for neutron and gamma ray protection of the present invention through the following specific production process:

[0027] Weigh B 4 C micropowder 5 parts, powder particles ≤ 3um, 10 thirds of the dispersing aid, here after the dispersing aid is equally divided into 22 parts, of which sodium dibutyl naphthalene sulfonate accounts for 2 parts, NH 3 .H 2 O occupies 20 parts of it, ball milled until the dispersion aid is evenly dispersed in the powder;

[0028] Weigh WO 3 10 parts of powder, 10~40um, 20 thirds of dispersing aid, here after the dispersing aid is divided into 22 parts, of which sodium dibutyl naphthalene sulfonate accounts for 2 parts, NH 3 .H 2 O accounts for 20 parts of it, ball milled to WO 3 The powder particles are below 20um, and the dispersing aid is evenly dispersed in the powder;

[0029] Weigh 30 parts of vulcanized natural rubber emulsion and ground B at room temperature (15~30℃) 4 The mixture of C...

Embodiment 3

[0034] In this embodiment, we produced a latex composite material for neutron and gamma ray protection of the present invention through the following specific production process:

[0035] Weigh B 4 15 parts of C micropowder, powder particles ≤3um, 6 parts of dispersing aid, here after the dispersing aid is divided into 24.5 parts, of which sodium dibutyl naphthalene sulfonate accounts for 2.5 parts, NH 3 .H 2 O occupies 22 parts of it, ball milled until the dispersion aid is evenly dispersed in the powder;

[0036] Weigh WO 3 5 parts of powder, 10~40um, 2 parts of dispersing aid, here after the dispersing aid is divided into 24.5 parts, of which sodium dibutyl naphthalene sulfonate accounts for 2.5 parts, NH 3 .H 2 O accounts for 22 of them, ball milled to WO 3 The powder particles are below 20um, and the dispersing aid is evenly dispersed in the powder;

[0037] Weigh 40 parts of natural rubber emulsion after vulcanization and ground B at room temperature (15~30℃) 4 The mixture of C ...

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Abstract

The invention discloses a neutron and gamma-ray protection latex composite material and a preparation method thereof, relating to a radiation protection composite material and a preparation method thereof. The technical scheme is as follows: the neutron and gamma-ray protection latex composite material comprises a vulcanized latex, B4C, WO3, a dispersing aid and an accessory ingredient. The preparation method comprises the following steps: respectively grinding B4C powder and WO3 powder with the dispersing aid; at normal temperature, respectively adding the vulcanized latex and the accessory ingredient to prepare a B4C latex and a WO3 latex; and mechanical stirring the two latexes uniformly at normal temperature, and adding a stabilizer to obtain the composite material B4C / WO3 composite latex. The composite material prepared by the method disclosed by the invention has favorable shielding effects on neutrons and gamma-rays; and the production technique is simple and easy to operate, has the advantage of low production cost, and is suitable for producing various protection devices for both neutrons and gamma-rays.

Description

technical field [0001] The invention relates to a radiation protection composite material and a preparation method thereof, in particular to a latex composite material capable of effectively protecting both neutrons and gamma rays and a preparation method of the composite material. Background technique [0002] Radiation-resistant latex products are widely used in scientific research and production, nuclear emergency handling, equipment decommissioning, waste disposal, etc. When neutrons are produced by nuclear reactions or nuclear fission, gamma rays are often mixed. Therefore, in order to reduce the radiation of workers, in radiation protection Not only neutrons but also gamma rays should be considered. In recent years, domestic and foreign research on nuclear shielding materials has gradually increased, and heavy metals, rare earth elements, and neutron absorbing materials have gradually become research hotspots. Metallic lead has excellent ability to shield gamma rays, ...

Claims

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Application Information

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IPC IPC(8): C08L7/02C08K9/00C08K9/04C08K9/02C08K3/38C08K3/22
Inventor 张鹏程李莉徐立军
Owner SICHUAN INST OF MATERIALS & TECH
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