KR101145703B1 - Radiation shield sheet - Google Patents

Radiation shield sheet Download PDF

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KR101145703B1
KR101145703B1 KR1020100117265A KR20100117265A KR101145703B1 KR 101145703 B1 KR101145703 B1 KR 101145703B1 KR 1020100117265 A KR1020100117265 A KR 1020100117265A KR 20100117265 A KR20100117265 A KR 20100117265A KR 101145703 B1 KR101145703 B1 KR 101145703B1
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South Korea
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sheet
silicon
mixing
curing accelerator
tourmaline
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KR1020100117265A
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Korean (ko)
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김선칠
신승동
윤신일
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(주)에나인더스트리
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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • 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
    • G21F1/12—Laminated shielding materials

Abstract

PURPOSE: A radial ray shielding sheet capable of protecting the human body from the exposure to radial rays is provided to maximize a radial ray shielding effect by producing the sheet by mixing barium sulphate with a silicon polymer. CONSTITUTION: A radial ray shielding sheet capable of protecting the human body from the exposure to radial rays is obtained by the following steps: pulverizing barium sulphate to obtain powder, and mixing the barium sulphate powder with a silicon polymer; adding tourmaline into the mixture; inserting a silicon curing accelerator, RC-4 into the mixture; molding the mixture into a sheet form; and aging the obtained silicon sheet at 25 deg C for 24 hours in an aging chamber. The radial ray shielding sheet contains 18.07wt% of silicon polymer, 63-27wt% of barium sulphate, 18.07wt% of tourmaline, and 0.59wt% of silicon curing accelerator.

Description

방사선 차폐 시트{RADIATION SHIELD SHEET}Radiation shielding sheet {RADIATION SHIELD SHEET}

본 발명은 방사선 차폐 시트에 관한 것으로서, 보다 상세하게는 인체 및 환경에 유해한 납을 사용하지 않으면서도 방사선 차폐 효과를 극대화시킬 수 있도록 한 방사선 차폐 시트에 관한 것이다.The present invention relates to a radiation shielding sheet, and more particularly, to a radiation shielding sheet capable of maximizing a radiation shielding effect without using lead harmful to a human body and the environment.

일반적으로, 방사선의 차폐를 위해서는 의료분야, 방사선분야 등과 같은 전분야에서 대부분 재료가 납으로 이루어진 것을 사용하고 있다.In general, in order to shield radiation, most materials are made of lead in all fields such as medical field and radiation field.

상기한 납에 대한 유해성은 이미 많이 알려져 있으며, 중금속으로 분류되어 관리되고 있으며 체내 흡수 등 다양한 면에서 위험성을 내포하고 있다. The hazards to lead are already well known, classified and managed as heavy metals, and include risks in various aspects such as absorption in the body.

그래서, 방사선을 다루는 영상의학과에서는 의료방사선의 차폐를 위해 환자, 보호자, 방사선사, 의료인이 납 방호복의 일종인 에이프런(Apron)을 착용하게 되는 바, 상기한 방호복의 재료는 대부분이 납을 가공하여 제작한 것이다. Therefore, in the department of radiology that deals with radiation, patients, guardians, radiologists and medical personnel wear aprons, which are a type of lead protective clothing, in order to shield medical radiation. It is produced.

또한, 영상의학과 검사실인 촬영실의 차폐에 사용되는 벽, 바닥, 출입문 재료 또한 납을 포함하여 제작되는바, 납이 방사선차폐물로 많이 이용되는 가장 큰 이유는 경제적인 측면의 의료방사선 차폐능과 물질의 가공성이 우수하기 때문이다. In addition, the wall, floor and door materials used for shielding the imaging room, which is a radiology laboratory, are also made of lead. The main reason why lead is widely used for radiation shielding is the economical aspect of medical radiation shielding ability. This is because the workability is excellent.

그러나, 상기한 바와 같이 납을 사용한 에이프런을 방사선사, 환자들이 몸에 걸치게 되면 그 무게가 10Kg 정도로 무겁고 인체에 유해한 문제가 있고, 방사선실의 벽, 문 등을 납을 포함한 재료로 제작하게 되면 호흡기를 통해 납을 흡입하게 되어 납중독 등의 발생이 우려되는 문제점이 있다.However, as described above, when a radiologist or a patient wears apron using lead, its weight is about 10 kg and is harmful to the human body. When the walls and doors of the radiation room are made of a material containing lead, Inhalation of lead through the respiratory system has a problem that the occurrence of lead poisoning.

따라서, 본 발명의 목적은 상기한 문제점을 해결하기 위한 것으로서, 인체에 유해한 납을 사용하지 않으면서도 방사선 차폐능을 유지하여 방사선에 노출되는 것을 방지할 수 있을 뿐만 아니라 가공도 용이하고 몸에 착용할 때의 중량도 감소시킬 수 있도록 한 방사선 차폐 시트를 제공함에 있다.Accordingly, an object of the present invention is to solve the above problems, it is possible to prevent radiation exposure by maintaining the radiation shielding capability without using lead harmful to the human body, as well as easy to process and wear on the body It is to provide a radiation shielding sheet to reduce the weight of the time.

상기한 목적을 실현하기 위하여 본 발명은, 실리콘 폴리머 21.3-22.3중량%, 황산바륨75.5-77.3중량%, 실리콘 경화촉진제 0.4-0.75중량%를 혼합하여 경화시켜서 구성함을 특징으로 한다.In order to realize the above object, the present invention is characterized in that the composition is cured by mixing 21.3-22.3% by weight of silicone polymer, 75.5-77.3% by weight of barium sulfate, and 0.4-0.75% by weight of silicone curing accelerator.

이상과 같이 본 발명은 황산바륨을 실리콘 폴리머에 혼합시켜서 방사선 차폐 시트를 제작함으로써, 방사선 차폐율은 납보다 우수하면서도 가볍고 인체에 무해하여 사용이 편리하고 건강에도 아무런 해를 주지 않도록 하는 잇점이 있는 것이다.As described above, the present invention provides a radiation shielding sheet by mixing barium sulfate with a silicone polymer, the radiation shielding rate of which is superior to lead, light and harmless to the human body, which is convenient to use and does no harm to health. .

도 1은 본 발명에 따른 방사선 차폐 시트 제조방법을 도시한 플로우차트,1 is a flowchart illustrating a method of manufacturing a radiation shielding sheet according to the present invention;

도 1은 본 발명에 따른 방사선 차폐 시트 제조방법을 도시한 플로우차트이다.1 is a flowchart illustrating a method of manufacturing a radiation shielding sheet according to the present invention.

1) 소련공정1) Soviet process

황산바륨(BaSO4)을 분말화시키는 공정으로서, 이는 롤러(MILL ROLLER) 간격을 0.1mm로 하여 120분간 실시하게 되는바, 상기한 분말의 입자는 대략 3미크론(㎛) 이하가 된다.As a process of powdering barium sulfate (BaSO 4), which is performed for 120 minutes with a roller roll distance of 0.1 mm, the particles of the powder are approximately 3 microns (μm) or less.

물론, 상기한 황산바륨은 백색의 분말 또는 무정형의 결정으로 무미?무취이며, 천연에서는 중정석으로 산출되고, 비중은 4.25~4.5이며 1,600℃에서 분해되는 물질이다.Of course, the barium sulphate is white powder or amorphous crystals, tasteless and odorless, is naturally produced as barite, and has a specific gravity of 4.25 to 4.5 and is decomposed at 1,600 ° C.

또한, 물?에탄올?에테르?클로로포름에 전혀 녹지 않으며, 산이나 알칼리에도 녹지 않는다. It is also insoluble in water, ethanol, ether, and chloroform, and insoluble in acids and alkalis.

그러나 뜨거운 진한 황산에는 녹는다. But it dissolves in hot concentrated sulfuric acid.

2) 혼합공정2) Mixing Process

젤 형태의 실리콘 폴리머에 상기한 소련공정에서 분말화된 황산바륨을 혼합시키는 공정으로서, 믹싱롤러(MIXING ROLLER)장치에서 롤러(ROLLER)의 온도는 50도로 유지하고 롤러의 간격은 5mm로 하며 30분간 혼합시켜서 균일하게 한다.A process of mixing powdered barium sulfate in the above-mentioned Soviet process with a gel-type silicone polymer. In a mixing roller apparatus, the roller temperature is maintained at 50 degrees and the roller interval is 5 mm. Mix to make it uniform.

상기에서 롤러(ROLLER)의 온도는 롤러의 표면온도를 말하는 것이다.In the above, the temperature of the roller ROLLER refers to the surface temperature of the roller.

상기한 젤 형태의 실리콘 폴리머와 황산바륨의 혼합비율은 실리콘 폴리머 100g에 대해 황산바륨 350g으로 혼합을 하게 되면 최적의 결과를 얻지만, 실리콘 폴리머80g~120g에 대해 황산바륨 280g~420g으로 배합하면 안정적인 결과를 나타내게 된다.The mixing ratio of the above-described gel-type silicone polymer and barium sulfate is optimal when the mixture is mixed with 350 g of barium sulfate with respect to 100 g of the silicone polymer. Will result.

3) 토르말린 혼합공정3) Tourmaline Mixing Process

상기한 혼합공정이 끝난 후 토르말린을 혼합시키는 공정으로서, 믹싱롤러(MIXING ROLLER)장치에서 롤러(ROLLER)의 온도는 50도로 유지하고 롤러(ROLLER)의 간격은 5mm로 하여 혼합시간은 30분으로 하여 혼합시킨다.After finishing the mixing process, the tourmaline is mixed. In the mixing roller device, the roller temperature is maintained at 50 degrees and the roller interval is 5 mm. The mixing time is 30 minutes. Mix.

여기서, 젤 형태의 실리콘 폴리머 100g에 대해 황산바륨 350g이 혼합되어 만들어진 혼합물에 토르말린 100g이 혼합되면 최적의 결과를 얻게 되는바, 실리콘 폴리머80g~120g에 대해 토르말린을 80g~120g으로 배합하면 안정적인 결과를 얻게 된다.Here, the optimum result is obtained when 100 g of tourmaline is mixed with a mixture of 350 g of barium sulfate for 100 g of a gel-type silicone polymer, and 80 g to 120 g of tourmaline for 80 g to 120 g of silicone polymer provides stable results. You get

상기한 토르말린은 방사선 차폐를 시킬 수 있으나 주목적은 실리콘 폴리머와 황산바륨이 혼합되어 발생되는 공극에 상기한 혼합성이 우수한 토르말린이 상기한 공극을 메워주어 방사선 차폐가 원활히 이루어지도록 하기 위한 것이다.The tourmaline can shield the radiation, but the main purpose is to facilitate the radiation shielding by filling the pores with tourmaline having excellent mixing properties in the pores generated by mixing the silicon polymer and barium sulfate.

4) 촉진제 혼합공정4) Accelerator Mixing Process

실리콘(SILICON) 경화촉진제인 RC-4를 혼합시키는 공정으로서, 상기한 공정에서 경화촉진제에 의해 실리콘에 탄성이 형성되는바, 실리콘 폴리머 100g에 대해 실리콘 경화촉진제를 3.2g으로 혼합하게 되면 최적의 결과를 얻게 되지만, 실리콘 경화촉진제를 2.6g~3.9g의 범위내에서 혼합하여도 된다.RC-4, which is a silicone curing accelerator, is mixed, and elasticity is formed in the silicone by the curing accelerator in the above-described process. When the silicone curing accelerator is mixed in 3.2g with respect to 100g of silicone polymer, an optimum result is obtained. However, the silicone curing accelerator may be mixed within the range of 2.6 g to 3.9 g.

여기서, 실리콘 경화촉진제는 믹싱롤러 장치에서 롤러의 온도는 50도로 유지하고 롤러의 간격은 5mm로 하여 혼합시간은 10분으로 하여 혼합시킨다.Here, the silicone curing accelerator is mixed at the mixing roller device while maintaining the temperature of the roller at 50 degrees, the distance between the rollers is 5 mm, and the mixing time is 10 minutes.

상기한 실리콘 경화촉진제는 150도 이상에서 경화가 이루어지므로 후에 이루어지는 성형단계에서 경화가 이루어지게 될 것이다.Since the silicone curing accelerator is hardened at 150 degrees or higher, curing will be performed in a molding step that is performed later.

여기서, 상기한 바와 같이 각각의 조성물을 중량%로 나타내게 되면, 실리콘 폴리머 17.5-18.1중량%, 토르말린 16.5-18.1중량%, 황산바륨61.5-63.3중량%, 실리콘 경화촉진제 0.5-0.65중량%로 나타낼 수 있게 된다.Here, as described above, each composition is represented by weight percent, 17.5-18.1 weight percent silicone polymer, 16.5-18.1 weight percent tourmaline, 61.5-63.3 weight percent barium sulfate, and 0.5-0.65 weight percent silicone curing accelerator. Will be.

물론, 최적의 중량비는 실리콘 폴리머 18.07중량%, 황산바륨 63.27중량%, 토르말린 18.07중량%, 실리콘 경화촉진제 0.59중량%이다.Of course, the optimum weight ratio is 18.07 weight percent silicone polymer, 63.27 weight percent barium sulfate, 18.07 weight percent tourmaline and 0.59 weight percent silicone curing accelerator.

5) 실리콘 시트 형성공정5) Silicon Sheet Forming Process

상기와 같이 실리콘 폴리머에 황산바륨, 토르말린 및 실리콘 경화촉진제가 혼합이 되면 혼합된 실리콘을 시트형태로 형성시키게 되는바, 상기한 시트의 규격은 두께 2t~6t로 형성되며 가로500mm와 세로800mm의 롤 형태로 반고체상태의 시트로 형성이 된다. As described above, when barium sulfate, tourmaline, and a silicone curing accelerator are mixed with the silicon polymer, the mixed silicon is formed in a sheet form. The size of the sheet is formed with a thickness of 2t to 6t and a roll of 500mm in width and 800mm in length. It is formed into a semisolid sheet in the form.

6). 실리콘 숙성공정6). Silicon Aging Process

25도에서 24시간 숙성공간에서 숙성을 시키게 되는바, 상기한 숙성은 혼합물의 결합구조를 안정화시키는 작업이다.After aging in the aging space for 24 hours at 25 degrees, the above aging is to stabilize the bonding structure of the mixture.

7) 재단공정7) Cutting process

상기한 실리콘 시트를 차폐에 적용되는 용도에 맞게 컷팅머신에 의해 컷팅을 하여 차폐시트로 재단을 하게 된다.The silicon sheet is cut by the cutting machine according to the application applied to the shielding to cut the shielding sheet.

8) 성형 공정8) forming process

상기와 같이 재단된 차폐시트는 250ton의 1~2기압의 진공성형 유압프레스에 의해 160도의 온도에서 300초간 압착되어 차폐시트가 경화되어(실리콘 소재가 경화되어 굳어진다.) 완성되는바, 상기한 시트는 금형형틀에 의해 2~5t의 두께로 완성된다.The shielding sheet cut as described above is crimped for 300 seconds at a temperature of 160 degrees by a vacuum molding hydraulic press of 1 to 2 atmospheres of 250 tons to cure the shielding sheet (silicon material is cured and hardened). Is completed to a thickness of 2 to 5t by a mold.

한편 상기한 실리콘 소재에 형성된 기포는 유압프레스에 의해 압착되면서 기포가 제거가 된다.Meanwhile, the bubbles formed in the silicon material are compressed by the hydraulic press to remove the bubbles.

(방사선 차폐 실험)(Radiation Shield Experiment)

상기한 바와 같은 공정을 통해 생산된 차폐시트는 실리콘 폴리머 100g, 황산바륨 350g, 토르말린 100g, 실리콘 경화촉진제 3.2g을 함유하는 것으로서, 이를 한국산업표준에 X선 방호용품류의 납당량 시험방법(KS A 4025 : 1990, 2005년 확인)과 동일한 실험방법을 준수하여 시험하였다.The shielding sheet produced through the process as described above contains 100g of silicone polymer, 350g of barium sulfate, 100g of tourmaline, and 3.2g of silicone curing accelerator, which is the lead equivalent test method for X-ray protective articles in Korean Industrial Standards (KS A 4025: 1990, 2005) was tested in accordance with the same experimental method.

그리고 친환경 소재로 제작된 차폐 시트의 차폐성능을 알아보기 위하여 진단용 X선 발생장치의 실효에너지(Effective Energy)를 측정하여 이용하였다.In addition, the effective energy of the diagnostic X-ray generator was measured and used to determine the shielding performance of the shielding sheet made of environmentally friendly materials.

(방사선 차폐 실험에 사용된 장치)(Devices used in radiation shielding experiments)

1) 진단용 X-선발생장치; DK-525, 125kV-500mA, Toshiba E7239X1) diagnostic X-ray generator; DK-525, 125kV-500mA, Toshiba E7239X

2) Exposure and Exposure rate meter(192X, Capintec)2) Exposure and Exposure rate meter (192X, Capintec)

3) Ion Chamber(Model PM-30, PR-18)3) Ion Chamber (Model PM-30, PR-18)

4) 반가층 측정용 Al 흡수체 300 ㎜ × 300 ㎜ × 10 ㎜ 10개4) 10 Al absorbers 300 mm × 300 mm × 10 mm for half layer measurement

5) 부가필터 0.1 mmCu 2개5) 2 additional filter 0.1 mmCu

6) 의료방사선 차폐 시트 샘플6) Sample of medical radiation shielding sheet

비교실험을 위해 본 발명의 실리콘 폴리머에 황산바륨을 혼합하여 제작된 시트와 병원의 촬영실에서 사용하고 있는 에이프런을 대조군으로 실험하였다.For comparative experiments, a sheet prepared by mixing barium sulfate with the silicone polymer of the present invention and an apron used in a recording room of a hospital were tested as a control.

실험조건으로 관전류 200 mA, 조사시간 0.1 sec, 고유필터 0.7 mmAl에서 관전압 100 kVp, 부가여과판 0.2 mmCu가 있는 경우에 실효에너지 45.01keV의 조건에서 각종 방사선 차폐시트(500 ㎜ × 500 ㎜)에 대한 차폐율이 하기한 표1에 개시되어 있다. Shielding for various radiation shielding sheets (500 ㎜ × 500 ㎜) under conditions of effective energy 45.01keV when the tube current is 200 mA, irradiation time 0.1 sec, tube voltage 100 kVp at 0.2 mmC inherent filter and 0.2 mmCu additional filter plate. The rates are set forth in Table 1 below.

차폐 시트가 없는 경우의 조사량은 평균 0.543mR로 측정되었으며, 먼저 실리콘 재질의 조사량 평균은 0.013 mR의 투과선량으로 측정되어 차폐율이 가장 높은 98%를 나타내어 차폐율이 매우 좋았다. In the absence of a shielding sheet, the irradiation dose was measured as an average of 0.543 mR, and the average irradiation dose of silicon material was measured as a transmission dose of 0.013 mR, showing a shielding rate of 98%, which is the highest.

실리콘 재질 시트의 유연성과 가공성, 내구성을 고려하여 제작하였으므로 두께에 대한 큰 불편한 점은 없다.It is manufactured in consideration of the flexibility, processability, and durability of the silicon sheet, so there is no big inconvenience for the thickness.

그리고 현재 병원의 촬영실에서 사용하고 있는 에이프런을 대상으로 무작위 추출하여 실험한 결과는 94%의 차폐율을 나타냄을 알 수 있었다.In addition, a random sampling of the aprons currently used in the hospital's imaging room showed that the shielding rate was 94%.


물질명
Substance

두께(mm)
Thickness (mm)

조사량(Exposure)mR
Exposure mR

차폐율%
Shielding rate% 1One 22 33 평균Average 초기선량Initial dose -- 0.530.53 0.550.55 0.550.55 0.5430.543 -- SiliconSilicon 4.004.00 0.010.01 0.020.02 0.010.01 0.0130.013 9898 LeadLead 4.004.00 0.040.04 0.030.03 0.040.04 0.0330.033 9494

상기한 바와 같이 본 발명의 제조방법에 의해 생산된 방사선 시트는 납보다 가볍고 인체에 무해하며 납보다 방사선 차폐율이 높게 나타나는 것으로 그 효과가 매우 우수한 것입니다.As described above, the radiation sheet produced by the manufacturing method of the present invention is lighter than lead, harmless to the human body, and shows a higher radiation shielding rate than lead.

Claims (4)

삭제delete 실리콘 폴리머 17.5-18.1중량%, 토르말린 16.5-18.1중량%, 황산바륨61.5-63.3중량%, 실리콘 경화촉진제 0.5-0.65중량%를 혼합하여 경화시켜서 구성함을 특징으로 하는 방사선 차폐 시트.A radiation shielding sheet comprising a mixture of 17.5-18.1 wt% silicone polymer, 16.5-18.1 wt% tourmaline, 61.5-63.3 wt% barium sulfate, and 0.5-0.65 wt% silicone curing accelerator. 실리콘 폴리머 18.07중량%, 황산바륨 63.27중량%, 토르말린 18.07중량%, 실리콘 경화촉진제 0.59중량%를 혼합하여 경화시켜서 구성함을 특징으로 하는 방사선 차폐 시트.A radiation shielding sheet comprising 18.07% by weight of a silicone polymer, 63.27% by weight of barium sulfate, 18.07% by weight of tourmaline, and 0.59% by weight of a silicone curing accelerator. 삭제delete
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KR101953363B1 (en) 2018-07-25 2019-02-28 장서구 Radiation shielding material and method for making the same
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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010033880A (en) * 1998-11-06 2001-04-25 누러셀 인코퍼레이티드 Nuclear resistance cell and methods for making same

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010033880A (en) * 1998-11-06 2001-04-25 누러셀 인코퍼레이티드 Nuclear resistance cell and methods for making same

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