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High-temperature-resistant composite material with nuclear radiation shielding effect

A composite material and shielding effect technology, applied in the field of nuclear radiation shielding materials, can solve problems such as poor movement and radiation resistance, poor comprehensive shielding effect, and difficulty in satisfying toughness, etc., to achieve poor radiation resistance, comprehensive Good shielding effect, solve the effect that is difficult to move

Inactive Publication Date: 2017-06-09
ZHENJIANG YIQING COMPOSITE MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The deficiencies of current shielding materials can be summarized in the following aspects: strong toughness is difficult to meet the requirements of structural shielding materials, poor heat resistance, poor comprehensive shielding effect, large volume, difficult to move, and poor radiation resistance, etc.

Method used

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  • High-temperature-resistant composite material with nuclear radiation shielding effect
  • High-temperature-resistant composite material with nuclear radiation shielding effect
  • High-temperature-resistant composite material with nuclear radiation shielding effect

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A high-temperature-resistant composite material with nuclear radiation shielding effect, which is composed of the following materials in parts by weight: 50 parts of thermoplastic polyimide matrix, 15 parts of chopped carbon fiber, 10 parts of boron carbide, and 20 parts of lead powder , 1 part of silane coupling agent KH550, 2 parts of antioxidant, and 2 parts of flow promoter; said antioxidant is 2,6-tertiary butyl-4-methylphenol and didodecyl alcohol The weight ratio of ester, 2,6-tertiary butyl-4-methylphenol and didodecyl alcohol ester is 1:1, and the flow accelerator is an acid anhydride accelerator.

[0022] A high-temperature-resistant composite material with nuclear radiation shielding effect, the preparation process is as follows: first, carbon fiber, boron carbide and lead powder are soaked in a silane coupling agent for treatment, and the treatment time is 6 hours. After the treatment, the mixture A is obtained. Dry the mixture A in a drying oven at a drying...

Embodiment 2

[0024] A high-temperature-resistant composite material with nuclear radiation shielding effect, which is composed of the following materials in parts by weight: 70 parts of thermoplastic polyimide matrix, 5 parts of chopped carbon fiber, 2 parts of boron carbide, and 20 parts of lead powder , 1 part of silane coupling agent KH550, 1 part of antioxidant, 1 part of flow promoter, said antioxidant is 2,6-tertiary butyl-4-methylphenol and didodecyl alcohol Ester, the weight ratio of 2,6-tertiary butyl-4-methylphenol and didodecyl alcohol ester is 1:1, and described flow enhancer is an acid anhydride accelerator; Its preparation process is identical with embodiment 1, Obtain high temperature resistant composite material b.

Embodiment 3

[0026] A high-temperature-resistant composite material with nuclear radiation shielding effect, which is composed of the following materials in parts by weight: 80 parts of thermoplastic polyimide matrix, 10 parts of chopped carbon fiber, 5 parts of boron carbide, and 5 parts of lead carbonate , lead oxide is 5 parts, silane coupling agent KH550 is 3 parts, antioxidant is 1 part, flow promoter is 1 part, and the antioxidant is 2,6-tertiary butyl-4-methylphenol And two dodecyl alcohol esters, the weight ratio of 2,6-tertiary butyl-4-methylphenol and double dodecyl alcohol esters is 1:1, and the flow accelerator is an acid anhydride accelerator; its preparation process Same as in Example 1, a high temperature resistant composite material c was obtained.

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Abstract

The invention discloses a high-temperature-resistant composite material with a nuclear radiation shielding effect. The high-temperature-resistant composite material is prepared from, by weight, 50-90 parts of polyimide resin matrix, 5-15 parts of reinforcing materials, 2-10 parts of boron carbide, 1-20 parts of lead, 1-5 parts of a coupling agent and 1-5 parts of processing agents. The polyimide resin matrix, the reinforcing materials, boron carbide, lead, the coupling agent and the processing agents are stirred and uniformly mixed in a high-speed mixer to prepare plates, rods and workpieces by means of melt processing forming. The high-temperature-resistant composite material is 89%-98% in neutron shielding ratio, 75%-85% in gamma ray shielding ratio and 195-285DEG C in heat resistance temperature, can be used as a structural material, is available for shield protection of various radioactive sources such as isotope neutron sources, nuclear reactors and accelerators and is especially applicable to shield protection under complex nuclear radiation conditions.

Description

technical field [0001] The invention relates to a nuclear radiation shielding material, in particular to a high temperature resistant composite material with nuclear radiation shielding effect. Background technique [0002] With the development and application of nuclear energy technology, the resulting radiation safety and protection issues are becoming more and more important. For example, isotope neutron sources, nuclear reactors, and accelerators will produce nuclear radiation during operation, especially neutron radiation, which has strong penetrating power and poses a huge threat to personnel and equipment. [0003] In recent years, with the increasing application of fast reactors, power reactors and other portable radiation sources, traditional shielding materials such as concrete and heavy metals have been difficult to meet the special requirements of modern radiation protection. At this time, polymer-based composite shielding materials have attracted people's atten...

Claims

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Application Information

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IPC IPC(8): C08L79/08C08K13/06C08K9/06C08K7/06C08K3/38C08K5/544C08K3/08C08K3/22C08K3/26C08K3/24C08K3/32
CPCC08K13/06C08K3/08C08K3/22C08K3/24C08K3/26C08K3/32C08K3/38C08K5/544C08K7/06C08K9/06C08K2003/328C08K2201/004C08L2201/02C08L2201/08C08L79/08
Inventor 方省众王玮徐禄波段佳巍严玉陈雅露
Owner ZHENJIANG YIQING COMPOSITE MATERIAL
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