WO2016068241A1 - Matériau de protection contre le rayonnement en forme de feuille - Google Patents

Matériau de protection contre le rayonnement en forme de feuille Download PDF

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Publication number
WO2016068241A1
WO2016068241A1 PCT/JP2015/080566 JP2015080566W WO2016068241A1 WO 2016068241 A1 WO2016068241 A1 WO 2016068241A1 JP 2015080566 W JP2015080566 W JP 2015080566W WO 2016068241 A1 WO2016068241 A1 WO 2016068241A1
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WO
WIPO (PCT)
Prior art keywords
layer
sheet
elastomer
radiation shielding
shielding material
Prior art date
Application number
PCT/JP2015/080566
Other languages
English (en)
Japanese (ja)
Inventor
有康 栗本
有平 栗本
石田　祐二
隆由 藤野
彰広 中村
Original Assignee
株式会社Ｒｉｃａｎａｌ
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社Ｒｉｃａｎａｌ filed Critical 株式会社Ｒｉｃａｎａｌ
Publication of WO2016068241A1 publication Critical patent/WO2016068241A1/fr

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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
    • 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
    • G21F3/00—Shielding characterised by its physical form, e.g. granules, or shape of the material

Definitions

  • the present invention relates to a sheet-like radiation shielding material.
  • the shielding rate of radiation is greatly influenced by the density of the shielding material, as described in Patent Documents 6 and 7, these shielding sheets have a low filling rate of high specific gravity metals and the like, and thus the density of the shielding material is low. Due to the small size, the X-ray shielding rate is as low as about 0.2 mmPb, but the radiation shielding rate is not high. Further, when processing into a sheet, if the sheet thickness is reduced to improve workability, the radiation shielding rate is lowered. Conversely, if the sheet thickness is increased, it is difficult to cut and the shape of the adapted portion cannot be matched. Further, although it is possible to increase the radiation shielding rate by laminating thin sheets, it is difficult to increase the weight due to the increase in the number of sheets and to maintain the shape.
  • the elastomer layer (a layer) in which the tungsten powder according to the present invention is dispersed is produced in a sheet form by mixing, for example, a high concentration of tungsten powder coated with a coupling agent in polyvinyl chloride and a plasticizer. can do. Further, the radioactivity shielding rate can be further improved by adding a lithium compound (for example, lithium carbonate fine powder) or the like.
  • a lithium compound for example, lithium carbonate fine powder
  • the tungsten powder coated with the coupling agent is mixed with the elastomer resin with a stirring and mixing device such as a kneader.
  • a thermoplastic elastomer resin such as polyvinyl chloride or polypropylene is suitable for obtaining environmental compatibility, strength and flexibility.
  • thermoplastic elastomers such as styrene, olefin, vinyl chloride, urethane, ester, and amide
  • thermosetting elastomers include natural rubber and synthetic rubber such as acrylic rubber.
  • sheets with various thicknesses and laminate sheets with various radiation shielding ratios can be manufactured, depending on the purpose and application, such as the level of shielding radiation and the size / weight of the shielding radiation tool.
  • a sheet-like radiation shielding material can be provided.
  • Each layer can be formed and laminated by a known calendering method, T-die extrusion method, calender pressing method, pasting laminating method or the like.

Abstract

L'invention a pour objectif de fournir un matériau de protection contre le rayonnement en forme de feuille ayant une forte capacité de protection contre le rayonnement. Pour ce faire, dans la présente invention, divers types de feuilles sont fabriqués, dans lesquels le tungstène, le dysprosium (Dy), l'europium (Eu) et similaires ayant une capacité de protection contre le rayonnement sont mélangés à une concentration élevée dans un élastomère, les diverses feuilles sont disposées en couches, et un matériau de protection contre le rayonnement en forme de feuille ayant une forte capacité de protection contre le rayonnement est fabriqué.
PCT/JP2015/080566 2014-10-30 2015-10-29 Matériau de protection contre le rayonnement en forme de feuille WO2016068241A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2014-221968 2014-10-30
JP2014221968 2014-10-30

Publications (1)

Publication Number Publication Date
WO2016068241A1 true WO2016068241A1 (fr) 2016-05-06

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PCT/JP2015/080566 WO2016068241A1 (fr) 2014-10-30 2015-10-29 Matériau de protection contre le rayonnement en forme de feuille

Country Status (2)

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TW (1) TW201621918A (fr)
WO (1) WO2016068241A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3693977B1 (fr) * 2017-10-11 2021-12-08 Nippon Light Metal Company, Ltd. Adhésif de blindage ayant des propriétés de blindage neutronique

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08201581A (ja) * 1995-01-30 1996-08-09 Sutaaraito Kogyo Kk 放射線遮蔽用組成物並びにその用途
JP2007271539A (ja) * 2006-03-31 2007-10-18 Nippon Tungsten Co Ltd 樹脂タングステン複合材料
JP2009541720A (ja) * 2006-06-23 2009-11-26 マヴィック ゲゼルシャフト ミット ベシュレンクテル ハフツング 積層化された鉛不使用ｘ線防護材料
JP2013036871A (ja) * 2011-08-09 2013-02-21 Toshiba Corp 放射線遮蔽用パネル
JP2013122398A (ja) * 2011-12-09 2013-06-20 Fujix Ltd 放射線遮蔽体及び当該放射線遮蔽体を用いた放射線遮蔽製品
JP2014044197A (ja) * 2012-08-02 2014-03-13 Mmcssd:Kk 放射線遮蔽材含有塗膜および当該塗膜を形成してなる膜形成体
JP2014115143A (ja) * 2012-12-07 2014-06-26 Toshiba Corp 熱中性子吸収材料及びそのコーティング方法
WO2014148466A1 (fr) * 2013-03-19 2014-09-25 株式会社ディ・アンド・ディ Matière anti-rayonnement formant un revêtement et matière élastomère anti-rayonnement

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08201581A (ja) * 1995-01-30 1996-08-09 Sutaaraito Kogyo Kk 放射線遮蔽用組成物並びにその用途
JP2007271539A (ja) * 2006-03-31 2007-10-18 Nippon Tungsten Co Ltd 樹脂タングステン複合材料
JP2009541720A (ja) * 2006-06-23 2009-11-26 マヴィック ゲゼルシャフト ミット ベシュレンクテル ハフツング 積層化された鉛不使用ｘ線防護材料
JP2013036871A (ja) * 2011-08-09 2013-02-21 Toshiba Corp 放射線遮蔽用パネル
JP2013122398A (ja) * 2011-12-09 2013-06-20 Fujix Ltd 放射線遮蔽体及び当該放射線遮蔽体を用いた放射線遮蔽製品
JP2014044197A (ja) * 2012-08-02 2014-03-13 Mmcssd:Kk 放射線遮蔽材含有塗膜および当該塗膜を形成してなる膜形成体
JP2014115143A (ja) * 2012-12-07 2014-06-26 Toshiba Corp 熱中性子吸収材料及びそのコーティング方法
WO2014148466A1 (fr) * 2013-03-19 2014-09-25 株式会社ディ・アンド・ディ Matière anti-rayonnement formant un revêtement et matière élastomère anti-rayonnement

Also Published As

Publication number Publication date
TW201621918A (zh) 2016-06-16

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