Radiation-resistant liquid organic glass

A liquid plexiglass, anti-radiation technology, applied in shielding, nuclear engineering, reactors, etc., can solve the problems of environmental pollution, lead toxicity, weak particle absorption ability, etc., and achieve the effect of high-efficiency radiation protection performance

Active Publication Date: 2015-01-07
砀山县纳方包装材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional radiation protection materials generally use concrete, cement, lead plates, iron plates, etc. With the application of radiation in more and more fields, these materials have been difficult to meet the needs of various protective equipment production. In recent years, polymer based As a radiation protection material, composite materials have become a research hotspot. It is made of organic polymer materials as the matrix skeleton material and micro-powder with the function of absorbing rays as the filler. Among them, plexiglass (polymethyl methacrylate) is often used as the matrix material. At present, organic lead glass, organic barium glass, organic cadmium glass and other varieties have appeared, and related products and patents have also been reported
[0003] Lead or lead compounds are the mainstream of application as fillers, but they have two disadvantages: on the one hand, lead radiation-proof materials have good particle absorption ability for rays with energy higher than 88keV and between 13 and 40keV, but for energy Rays between 40 and 88keV have a region with very weak particle absorption ability (that is, "Pb weak absorption region"); on the other hand, lead is toxic and pollutes the environment, so its use is often restricted

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A kind of anti-radiation liquid organic glass, each component is calculated in parts by mass as follows:

[0024] Methyl methacrylate 30 g,

[0025] Dibenzoyl peroxide 0.5 g,

[0026] Dioctyl phthalate 15 g,

[0027] Caprylic acid 7 g,

[0028] Propylene glycol 5 g,

[0029] n-Butanol 0.5 g,

[0030] Cyclohexanone 10 g,

[0031] Cyclohexane 20 g,

[0032] Lead methacrylate 7 g,

[0033] Samarium methacrylate 5 g.

[0034] The preparation steps include: first dissolving lead methacrylate in cyclohexanone, dissolving samarium methacrylate in octanoic acid and propylene glycol, and then weighing methyl methacrylate, dioctyl phthalate, cyclohexane, For n-butanol, put the above raw materials into a reaction kettle, stir, heat to 78°C, add dibenzoyl peroxide cyclohexanone solution dropwise, and keep the temperature for 1 h to obtain liquid organic glass.

Embodiment 2

[0036] A kind of anti-radiation liquid organic glass, each component is calculated in parts by mass as follows:

[0037] Methyl methacrylate 40 g,

[0038] Dibenzoyl peroxide 0.5 g,

[0039] Dioctyl phthalate 10 g,

[0040] Caprylic acid 5 g,

[0041] Propylene glycol 3 g,

[0042] n-Butanol 1.5 g,

[0043] Cyclohexanone 8 g,

[0044] Cyclohexane 10 g,

[0045] Lead methacrylate 14 g,

[0046] Samarium methacrylate 8 g.

[0047] The preparation steps include: first dissolving lead methacrylate in cyclohexanone, dissolving samarium methacrylate in octanoic acid and propylene glycol, and then weighing methyl methacrylate, dioctyl phthalate, cyclohexane, For n-butanol, put the above raw materials into a reaction kettle, stir, heat to 78°C, add dibenzoyl peroxide cyclohexanone solution dropwise, and keep the temperature for 2 hours to obtain liquid organic glass.

Embodiment 3

[0049] A kind of anti-radiation liquid organic glass, each component is calculated in parts by mass as follows:

[0050] Methyl methacrylate 30 g,

[0051] Dibenzoyl peroxide 0.5 g,

[0052] Dioctyl phthalate 5 g,

[0053] Caprylic acid 9 g,

[0054] Propylene glycol 5 g,

[0055] n-Butanol 0.5 g,

[0056] Cyclohexanone 5 g,

[0057] Cyclohexane 10 g,

[0058] Lead methacrylate 20 g,

[0059] Samarium methacrylate 15 g.

[0060] The preparation steps include: first dissolving lead methacrylate in cyclohexanone, dissolving samarium methacrylate in octanoic acid and propylene glycol, and then weighing methyl methacrylate, dioctyl phthalate, cyclohexane, For n-butanol, put the above raw materials into a reaction kettle, stir, heat to 78°C, add dibenzoyl peroxide cyclohexanone solution dropwise, and keep the temperature for 2 hours to obtain liquid organic glass.

[0061]In order to prove the preparation of the radiation protection performance of the liquid organic glass ...

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PUM

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Abstract

The invention provides radiation-resistant liquid organic glass. Lead methacrylate and samarium methacrylate are used for preparing the radiation-resistant liquid organic glass as radiation-resistant components by the following steps: dissolving the lead methacrylate in cyclohexanone, dissolving the samarium methacrylate in caprylic acid and propylene glycol, weighing methyl methacrylate, dioctyl phthalate, cyclohexane and butanol, feeding the raw materials into a reaction kettle, stirring and heating the raw materials to 78 DEG C, dropwise adding a cyclohexanone solution of benzoyl peroxide, and keeping the temperature constant for 1 to 4 hours to obtain the liquid organic glass. The organic glass has the characteristics of high radiation resistance and good convenience in secondary processing.

Description

technical field [0001] The invention belongs to the field of special organic glass and relates to a radiation-proof liquid organic glass. Background technique [0002] With the continuous development of national defense scientific research, radiation medicine and nuclear technology applications, various radioactive rays are widely used, and the harm of rays to the human body and the damage to the environment are gradually recognized by human beings. The research on various anti-radiation materials to protect these rays has become a very important and urgent topic. Traditional radiation protection materials generally use concrete, cement, lead plates, iron plates, etc. With the application of radiation in more and more fields, these materials have been difficult to meet the needs of various protective equipment production. In recent years, polymer based As a radiation protection material, composite materials have become a research hotspot. It is made of organic polymer mater...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/14C08F220/06C08K5/098G21F1/10
Inventor 李军伟商冬洁
Owner 砀山县纳方包装材料有限公司
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