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Organic composite high-energy ray shielding material and preparation method thereof

A shielding material, high-energy ray technology, applied in the fields of magnetic field/electric field shielding, electrical components, etc., can solve the problems of complex and high process cost, complex nylon composite tungsten process, etc., achieve ideal shielding effect, light weight, simple production process Effect

Active Publication Date: 2017-03-29
ATTL (BEIJING) ADVANCED MATERIALS CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Lead is toxic and has been banned by many countries; the shielding effect of tungsten and its alloys is better than that of lead, but the complex and high process cost limits its large-scale use; nylon composite tungsten also has disadvantages such as complex process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The organic composite high-energy ray shielding material prepared in this embodiment has a thickness of 10 mm. In the shielding material, the mass percentage of epoxy resin (model: R139) is 40 wt%, and tungsten trioxide powder (particle size: 20 μm, purity: 99.5%) The mass percentage of) is 40wt%, the mass percentage of coupling agent (DL602) is 0.2%, and the mass percentage of curing agent (polyamide type 650 curing agent) is 19.8% by mass. The preparation method is as follows:

[0028] (1) First dissolve the coupling agent in an appropriate amount of water according to the above dosage, where the mass ratio of coupling agent to water is 5:100, and then add epoxy resin and tungsten trioxide powder according to the above mass percentage for ultrasonic mixing. It is 100KHz and the ultrasonic time is 15min to form a viscous liquid mixture with fluidity;

[0029] (2) Add the curing agent to the viscous liquid mixture obtained in step (1) according to the above mass percentage, ...

Embodiment 2

[0034] The organic composite high-energy ray shielding material prepared in this embodiment has a thickness of 10 mm. In the shielding material, the mass percentage of epoxy resin (model: EP132) is 40 wt%, and tungsten trioxide powder (particle size: 20 μm, purity: 99.5%) The mass percentage of) is 40wt%, the mass percentage of coupling agent (DL602) is 0.2%, and the mass percentage of curing agent (polyamide type 650 curing agent) is 19.8% by mass. The preparation method is as follows:

[0035] (1) First dissolve the coupling agent in an appropriate amount of water according to the above dosage, where the mass ratio of coupling agent to water is 5:100, and then add epoxy resin and tungsten trioxide powder according to the above mass percentage for ultrasonic mixing. It is 100KHz and the ultrasonic time is 15min to form a viscous liquid mixture with fluidity;

[0036] (2) Add the curing agent to the viscous liquid mixture obtained in step (1) according to the above mass percentage,...

Embodiment 3

[0041] The thickness of the organic composite high-energy ray shielding material prepared in this embodiment is 10mm. In the shielding material, the mass percentage of epoxy resin (model: EP132 and R139) is 40wt%, and the mass ratio of EP132 and R139 is 4:1 , The mass percentage of tungsten trioxide powder (particle size: 20μm, purity: 99.5%) is 40wt%, the mass percentage of coupling agent (DL602) is 0.2%, and the mass percentage of curing agent (polyamide type 650 curing agent) is The mass percentage is 19.8%, and the preparation method is as follows:

[0042] (1) First dissolve the coupling agent in an appropriate amount of water according to the above dosage, where the mass ratio of coupling agent to water is 5:100, and then add epoxy resin and tungsten trioxide powder according to the above mass percentage for ultrasonic mixing. It is 100KHz and the ultrasonic time is 15min to form a viscous liquid mixture with fluidity;

[0043] (2) Add the curing agent to the viscous liquid ...

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Abstract

The invention discloses an organic composite high-energy ray shielding material. The organic composite high-energy ray shielding material is prepared from 20-50% by mass of epoxy resin, 20-60% by mass of tungsten source powder, 0-1% by mass of a coupling agent and 10-30% by mass of a curing agent. The invention also discloses a preparation method of the shielding material. The shielding material is portable, has high shielding efficiency, especially has high shielding efficiency to X and gama rays and neutrons, and has good mechanical properties. The preparation method utilizes easily available raw materials, realizes a low cost, is non-toxic, has simple production processes, can be formed at the room temperature and saves energy.

Description

Technical field [0001] The invention belongs to the field of organic composite materials, and specifically relates to an organic composite high-energy ray shielding material and a preparation method thereof. Background technique [0002] High-energy ionizing radiation is widely used in many fields of contemporary science and technology, and more and more attention is paid to the protection of radiation. When high-energy rays (X, γ-rays) interact with matter, they can produce secondary charged particles (mainly electrons) and secondary photons, and transfer energy to the matter through the ionization and excitation process of these secondary charged particles. This process does not gradually consume its energy through multiple small energy losses like charged particles, but may lose most or all of its energy in one interaction process, resulting in the photoelectric effect, the Compton effect, and the electron pair effect. To achieve the protective effect. The substance that int...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/00C08K9/06C08K3/22H05K9/00
CPCC08K3/22C08K9/06C08K2003/2258C08K2201/003C08L63/00C08L2205/025H05K9/0081
Inventor 刘国辉裴燕斌王玲王铁军
Owner ATTL (BEIJING) ADVANCED MATERIALS CO LTD