EP2240940B1 - Matériau de blindage contre le rayonnement - Google Patents

Matériau de blindage contre le rayonnement Download PDF

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Publication number
EP2240940B1
EP2240940B1 EP09708264A EP09708264A EP2240940B1 EP 2240940 B1 EP2240940 B1 EP 2240940B1 EP 09708264 A EP09708264 A EP 09708264A EP 09708264 A EP09708264 A EP 09708264A EP 2240940 B1 EP2240940 B1 EP 2240940B1
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EP
European Patent Office
Prior art keywords
shielding
radiation
mixture
silicone
epoxy resin
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EP09708264A
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German (de)
English (en)
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EP2240940A1 (fr
Inventor
Hans-Jürgen Engelmann
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    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F1/00—Shielding characterised by the composition of the materials
    • G21F1/02—Selection of uniform shielding materials
    • G21F1/10—Organic substances; Dispersions in organic carriers
    • G21F1/103—Dispersions in organic carriers
    • G21F1/106—Dispersions in organic carriers metallic dispersions

Definitions

  • the invention relates to a shielding material for shielding radiation, in particular of radioactive radiation, in particular ⁇ and ⁇ -rays, and X-radiation and neutron radiation according to the preamble of claim 1.
  • the object of the present invention is to provide a shielding high shielding, in particular against ⁇ - and ⁇ -radiation, X-rays and neutron radiation, which does not have the above-mentioned disadvantages of shielding materials previously used.
  • the invention proposes as Ablematerial a heavy metal-polymer mixture consisting of a mixture of iron powder and epoxy resin or Silicone or a mixture of iron granules and epoxy resin or silicone or a mixture of iron powder and iron granules and epoxy resin or silicone or of a mixture of iron powder, barite powder and epoxy resin or silicone.
  • Iron is the heavy metal that is most common among all heavy metals in the earth's crust. Due to its high affinity for oxygen, it is not present in elemental form in the earth's crust, but especially in the form of oxides, carbonates and sulfates. Iron powder can be made by atomizing liquid metal via a nozzle. It can also be produced from iron oxide by gaseous reducing agents. In addition, iron powder can be obtained by thermal decomposition.
  • Barite also known as barite or barium sulphate (BaSO 4 )
  • BaSO 4 barite or barium sulphate
  • Submarine sediment deposits have been formed by mixing ascending barium-rich hydrothermal solutions with sulphate-containing seawater. This type of deposit can contain billions to billions of tons of barytes. An example of this is the Meggen deposit in Germany.
  • Barite is added to the well drilling, due to the high specific gravity of 4.3 - 4.7 g / cm 3 .
  • baryte is used for the production of white pigments and photographic paper. It is also part of heavy concrete as well as of contrast agents in X-ray examinations.
  • Epoxy resins are made by condensation of epichlorohydrin and bisphenol. Epoxy resins form liquid to viscous, glassy substances. Depending on the degree of crosslinking with appropriate Hartem, such as polyamines results in a liquid to solid product. The adhesion to metals is extremely good and the resulting product is extremely resistant to environmental influences, including corrosion. Solid epoxy resins show no irritating effects, no toxic and no carcinogenic properties - even in prolonged occupational exposure.
  • Silicone is a polymeric material, polysiloxane, a silicon-based, oxygen-based material having organic substituents, and has physical properties that are well-suited for the manufacture of flexible shielding products, such as shielding aprons.
  • the material is known by the common name "silicone", whereby there are a variety of different types of silicone.
  • Polysiloxanes are hydrophobic materials which, in contrast to other elastomers, have good chemical stability against water, acids and alkalis. The main advantage of using polysiloxanes is that they can be easily adapted to the particular application. By adding additives or modifiers, this can be easily achieved. Furthermore, polysiloxanes are made of environmentally friendly materials that can be easily disposed of after use without conditions.
  • the shielding material according to the invention can be cast in various forms, which can be adapted to the respective application. It can be used for isotope needles, glove boxes, electron accelerators, radon generators, in isotope production and other applications. It can be used in the form of wall and system blocks, as plates, mortar plaster or material for containers, shielding containers, pipe sheathings, shielding aprons and foils.
  • the production of the various products is carried out at normal temperature, with the required components in an agitator or mixer mixed together and then poured into the appropriate molds. The curing time can be shortened by heat. After curing, a mechanical processing is possible to adjust, for example, certain dimensional accuracy.
  • the density of the metal powder polymer shielding materials can be adjusted, with a density of 4.1 g / cm 3 for iron powder-epoxy mixture and a density of 2.8 g for barite powder-epoxy mixture. cm 3 can be achieved.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Claims (4)

  1. Matériau de blindage contenant un mélange de métal lourd et de polymère pour faire écran contre les radiations, en particulier les radiations de radioactivité, en particulier les rayons β et γ et/ou les rayons X et/ ou les flux de neutrons, caractérisé en ce que le mélange de métal lourd et de polymère consiste en un mélange de poudre de fer et de résine époxyde ou de silicone, ou en un mélange de granulé de fer et de résine époxyde ou de silicone ou en un mélange de poudre de fer, de granulé de fer et de résine époxyde ou de silicone, ou en un mélange de poudre de fer, de poudre de baryte et de résine époxyde ou de silicone.
  2. Procédé de préparation du mélange de métal lourd et de polymère selon la revendication 1, caractérisé en ce que les mélanges cités sont mélangés ensembles à une température normale, en particulier la température ambiante, moyennant l'utilisation d'un agitateur ou d'un malaxeur.
  3. Utilisation du matériau de blindage selon l'une quelconque des revendications 1 ou 2 à la fabrication de produits et d'objets fabriqués selon le procédé de coulée, comme des briques pour des parois de blindage, des cloisons, des plaques, des modules de système, des tabliers de blindage, des conteneurs, des récipients blindés, ainsi que pour la réalisation de revêtements, de crépis, d'enveloppes de tuyau, de tabliers de blindage et de films.
  4. Procédé selon la revendication 2, caractérisé en ce que les produits et objets fabriqués sont soumis à un traitement thermique pour raccourcir le temps de durcissement.
EP09708264A 2008-02-09 2009-01-23 Matériau de blindage contre le rayonnement Active EP2240940B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008008379A DE102008008379A1 (de) 2008-02-09 2008-02-09 Abschirmmaterial zum Abschirmen von Strahlung
PCT/DE2009/000095 WO2009097833A1 (fr) 2008-02-09 2009-01-23 Matériau de blindage contre le rayonnement

Publications (2)

Publication Number Publication Date
EP2240940A1 EP2240940A1 (fr) 2010-10-20
EP2240940B1 true EP2240940B1 (fr) 2011-06-29

Family

ID=40846394

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09708264A Active EP2240940B1 (fr) 2008-02-09 2009-01-23 Matériau de blindage contre le rayonnement

Country Status (4)

Country Link
EP (1) EP2240940B1 (fr)
AT (1) ATE515039T1 (fr)
DE (1) DE102008008379A1 (fr)
WO (1) WO2009097833A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2515493C1 (ru) * 2012-11-12 2014-05-10 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Белгородский государственный технологический университет им. В.Г. Шухова" Композит для защиты от космической радиации
CN110473641B (zh) * 2018-07-27 2023-01-03 海南大学 一种x射线辐射防护板及其制作方法
CN113889292A (zh) * 2021-08-10 2022-01-04 湖南金泰铋业股份有限公司 一种铋基辐射屏蔽材料及制品

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3114721A (en) * 1961-01-23 1963-12-17 Gen Electric Radiation shielding compositions
US3328338A (en) * 1962-08-08 1967-06-27 Frederick J Stingel Composition of matter and method of preparation
US3438903A (en) * 1966-05-17 1969-04-15 Ring Sidney B Plastic radiation and acoustic barrier compositions containing a thixotropic agent
GB1137554A (en) * 1967-04-07 1968-12-27 Glasswall Projects Ltd Improvements in and relating to building components
DE1801578A1 (de) * 1968-10-05 1971-06-03 Tehab Kg M N Duivelaar & Co Abschirmung gegen Kernspaltungsstrahlungen
DE7027288U (de) * 1970-07-20 1972-11-09 Rommenhoeller Kohlensaeure Energiehemmende platte.
BE793537A (fr) * 1971-12-30 1973-06-29 Dow Chemical Co Ecran absorbant les radiations et procede pour sa fabrication
US4157476A (en) * 1978-02-03 1979-06-05 General Electric Company Dental X-ray tube head
JPH06180389A (ja) * 1992-12-11 1994-06-28 Sanoya Sangyo Kk γ線、Ｘ線及び中性子線の同時遮蔽が可能な放射線遮蔽材
US6153666A (en) * 1998-07-16 2000-11-28 Bar-Ray Products, Inc. Radiation-attenuating sheet material
DE19955192C2 (de) * 1999-11-16 2003-04-17 Arntz Beteiligungs Gmbh & Co Verfahren zur Herstellung eines Strahlenschutzmaterials
US20040124374A1 (en) * 2001-06-08 2004-07-01 Adrian Joseph Amorphous composition for high level radiation and environmental protection
JP3951685B2 (ja) * 2001-11-30 2007-08-01 株式会社日立製作所 中性子遮蔽材及び使用済み燃料収納容器
US8022116B2 (en) * 2003-07-18 2011-09-20 Advanced Shielding Components, Llc Lightweight rigid structural compositions with integral radiation shielding including lead-free structural compositions
DE202004006711U1 (de) * 2003-09-03 2004-07-15 Mavig Gmbh Strahlenschutzmaterial auf Silikonbasis
US20050258404A1 (en) * 2004-05-22 2005-11-24 Mccord Stuart J Bismuth compounds composite
US7449131B2 (en) * 2004-10-06 2008-11-11 Terry Industries, Inc. Techniques and compositions for shielding radioactive energy

Also Published As

Publication number Publication date
ATE515039T1 (de) 2011-07-15
WO2009097833A1 (fr) 2009-08-13
DE102008008379A1 (de) 2009-08-20
EP2240940A1 (fr) 2010-10-20

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