KR20180012507A - Moisture-permeable and waterproof fabric with natural radiation shielding, and manufacturing method thereof - Google Patents
Moisture-permeable and waterproof fabric with natural radiation shielding, and manufacturing method thereof Download PDFInfo
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- KR20180012507A KR20180012507A KR1020160095437A KR20160095437A KR20180012507A KR 20180012507 A KR20180012507 A KR 20180012507A KR 1020160095437 A KR1020160095437 A KR 1020160095437A KR 20160095437 A KR20160095437 A KR 20160095437A KR 20180012507 A KR20180012507 A KR 20180012507A
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- radiation shielding
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- shielding material
- radiation
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- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/02—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with hydrocarbons
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
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- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
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- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/327—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated alcohols or esters thereof
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Abstract
Description
본 발명은 자연 방사선 차폐기능을 겸비한 투습방수포 및 그 제조방법에 관한 것으로서, 친수성 폴리우레탄 수지에 흡습성물질, 중성자차폐물질, 방사선차폐물질 및 무기첨가제를 첨가 및 혼합하여 제조된 혼합조성물을 이용하여 방사선차폐필름을 제조한 뒤 방사선차폐필름을 직물에 라미네이팅공법을 이용하여 부착시켜서 투습방수포를 제조함으로써, 투습방수 기능을 가질 뿐만 아니라, 토양, 암반, 대기 또는 건물 등에서 발생되는 자연 방사선의 차폐기능이 뛰어난 장점이 있는 자연 방사선 차폐기능을 겸비한 투습방수포 및 그 제조방법에 관한 것이다.The present invention relates to a moisture-permeable waterproofing fabric having a natural radiation shielding function and a method of manufacturing the same, and more particularly, to a moisture-permeable waterproofing cloth having a natural radiation shielding function and a method of manufacturing the same, By producing a shielding film and then attaching the radiation shielding film to the fabric by using the laminating method, the moisture permeation proofing cloth is manufactured. In addition to having the waterproofing and waterproofing function, it has excellent shielding function of natural radiation generated in soil, rock, The present invention relates to a moisture-proof and waterproof protective film having a natural radiation shielding function and a manufacturing method thereof.
방사선은 지구가 생성 될 당시부터 존재 하였으며, 현재 우리는 방사선이 가득한 환경 하에 생활 하고 있다. 방사성 물질에는 자연에 존재 하는 것이 있고 산업, 의학 등에 이용하기 위해 인공적으로 만든 것이 있으며 그 종류는 다양하다.Radiation has existed since the earth was created, and now we are living in an environment full of radiation. Radioactive substances exist in nature, and artificial ones are used for industrial and medical purposes.
전리 방사선은 물질을 통과할 때에 이온화를 일으키는 알파, 베타, 양성자, 중성자, 감마선, X-선 등의 방사선을 말하며, 알파선은 종이 정도의 두께를 가진 물질에도 흡수 및 차단되기 때문에 특별히 차폐가 필요 없다고 알려져 있고, 베타선은 알파선보다는 큰 것으로 알려져 있지만 일반적으로는 얇은 알루미늄 포일이나 플라스틱 판 정도로도 차폐할 수 있다고 알려져 있다.Ion radiation refers to radiation such as alpha, beta, protons, neutrons, gamma rays, and X-rays that cause ionization when passing through a material. It is known that beta rays are known to be larger than alpha rays, but they are generally known to be shielded by thin aluminum foils or plastic plates.
검색장치, 의료검진에 쓰이는 X-ray, 암치료장치, 그리고 원자력발전소 등에서 외부로 방출되는 방사선은 인공방사선이다.X-rays used in search devices, medical examinations, cancer therapy devices, and nuclear power plants are artificial radiation.
자연방사선이란 자연방사성원소로부터 방출되는 α선(알파선), β선(베타선), γ선(감마선) 등과 우주선 및 우주선에 의해 생성된 방사성 물질, 지표와 건축물 재료 속에 들어 있는 방사성 물질, 공기와 음식물 속에 들어 있는 방사성 물질 등을 말한다. 자연방사선 물질은 라듐, 우라늄, 라돈, 칼륨으로 방사선 종류는 α선(알파선), β선(베타선), γ선(감마선)이다.Natural radiation refers to the radioactive materials, radionuclides, air and food (radioactive) substances, radioactive substances, radioactive substances, radioactive substances, and radioactive materials generated from spacecrafts and cosmic rays emitted from natural radioactive elements, such as alpha rays, beta rays and gamma rays. Radioactive material in the inside. The natural radiation materials are radium, uranium, radon, and potassium, and the types of radiation are α-ray (alpha ray), β ray (beta ray) and γ ray (gamma ray).
태양풍과 태양계 밖에서 오는 우주선(cosmic ray) 중에서 높은 에너지를 가진 입자들은 강한 투과력으로 생명체의 조직에 손상을 주지만, 지구는 상공 400㎞에서 1200㎞에 걸쳐 반알렌대라는 자기권이 존재하여 이러한 입자들을 거의 차단할 수 있다.Among the cosmic rays from the solar wind and the cosmic ray, high-energy particles damage living organisms with strong permeability, but the Earth has a magnetism of half a allen dang from 400 km to 1200 km above it, .
방사선이 인체에 흡수된 수치인 피폭량의 단위에는 시버트(Sv)와 렘(rem)이 있는데, 1Sv는 100rem과 같다(1Sv＝1000mSv＝100rem＝100000mrem). 일반인의 방사선 허용 수치는 1년에 약 5mSv인데, 이 중에서 우주선, 토양 방사선, 건축 자재에서 나오는 자연방사선이 2.5mSv이고, X-ray를 한 번 찍을 때 인체에 흡수되는 피폭량이약0.1mSv이다.Sv and rem are the unit of radiation dose that the radiation absorbed into human body. 1Sv is equal to 100rem (1Sv = 1000mSv = 100rem = 100000mrem). The radiation tolerance of the general public is about 5 mSv per year, of which natural radiation from spacecraft, soil radiation, building materials is 2.5 mSv, and the amount of radiation absorbed by the human body when taking an X-ray is about 0.1 mSv.
자연방사선은 우주선, 대지방사선(terrestrial radiation), 섭취한 식품내의 방사선 물질에서의 방사선과 흡인된 공기내의 방사선물질에서의 방사선으로 구분한다. 사람이 받는 자연방사선의 선량은 그 사람이 주거하는 장소 또는 거주환경에 따라 다르지만 1982년 UN보고서에 의하면 연간 2mSv이다.Natural radiation is divided into cosmic rays, terrestrial radiation, radiation from the radioactive material in the ingested food, and radiation from the radioactive material in the air. The dose of natural radiation that a person receives depends on the person's residence or living environment, but according to the 1982 UN report, the dose is 2 mSv per year.
이 중에서도, 우주선의 기여는 연간 0.30mSv 정도이지만 해면에서의 고도 또는 위도에 좌우된다. 대지방사선의 기여는 평균적으로는 연간 0.35mSv 정도 이지만, 이것은 한정된 지역에서는 연간 10mSv를 초과하는 곳도 있다. 식품에 포함되는 40K 등의 방사성물질의 체내흡수에 의한 내부노출(internal expdsure)은 연간 0.44mSv 가량이지만 대기 중의 라돈(Rn) 및 그의 딸핵종 등의 흡입에 의한 내부노출은 0.90mSv에 도달한다. 근래의 기술개발로 사람이 받는 자연방사선의 선량은 증가하고 있다. 이는 항공기내에서의 우주선 노출, 건재(建材)에 의한 가옥내의 라돈, 그리고 그의 딸핵종 흡입 등이 그 원인이라 할 수 있다.Among them, the contribution of spacecraft is about 0.30mSv per year, but it depends on altitude or latitude in the sea surface. The contribution of earth's radiation is on average 0.35mSv per year, but in some areas it exceeds 10mSv per year. The internal exposures of 40K and other radioactive materials contained in food are 0.44mSv per year, but the internal exposure by inhalation of radon (Rn) and its daughters in the atmosphere reaches 0.90mSv. With the recent development of technology, the dose of natural radiation received by humans is increasing. This can be attributed to the exposure of spacecraft in the aircraft, the radon in the house due to building materials, and the inhalation of his daughter radionuclides.
또한 비가 오면 방사능 수치가 올라가는데 대기 중에 있던 자연방사성 물질이 “씻김현상”으로 빗물과 함께 내려오게 되고 그 농도가 높아져 자연방사선 수치가 올라간다.In addition, when it rains, the radioactivity increases. The natural radioactive material in the atmosphere is "washed" and comes down with rainwater. The concentration of radioactivity increases and the natural radiation level rises.
의학 전문가들은 “세포분열 작용을 왕성하게 진행 중인 임산부나 어린이가 특히 방사능 비에 취약하다”고 지적한다. 이는 세포분열 과정에서 방사능이 영향을 미치면 기형아, 발암 등의 부작용이 늘어날 수 있기 때문이다.Medical specialists point out that "pregnant women and children who are actively working on cell division are particularly vulnerable to radiation." This is because if radiation affects the cell division process, side effects such as malformations and carcinogenesis may increase.
방사선은 과학, 산업, 의료분야에서 유용하게 쓰이는 반면, 인체에 피폭되면, 유전자 변이를 일으켜서 암 발생, 기형아출산, 백혈병 등 인체에 매우 치명적이다. 약한 방사능에 지속적으로 노출되었을 때에는 3~5년의 잠복기를 거쳐 기형아 출산, 백혈병, 각종 안구질환에 걸릴 확률이 매우 높아진다. Radiation is useful in science, industry, and medical fields, but when exposed to the human body, it causes genetic mutations that are extremely fatal to humans, including cancer, birth defects, and leukemia. When exposed to weak radioactivity, the probability of developing a congenital childbirth, leukemia, and various ocular diseases through a latency period of 3 to 5 years is very high.
이에 따라, 일상생활에서 쉽게 노출될 수 있는 자연방사선을 차폐하기 위한 방법 및 관련 제품에 대한 연구가 활발히 진행되고 있는 실정이다.Accordingly, researches on methods and related products for shielding natural radiation which can be easily exposed in daily life are being actively conducted.
더불어 여가 생활과 레저문화에 대한 관심이 증대됨에 따라 섬유산업에 있어서도 신체의 보호, 신분 표현 등의 기본적인 개념을 벗어나 쾌적성을 가지는 기능성 섬유에 대한 요구가 증대되고 있다. 이에 따라 불쾌감 해소, 운동 기능성의 향상을 목적으로 고내수압, 고투습의 고기능성 투습방수 소재에 대한 관심이 증대되어 이에 대한 연구 개발이 많이 이루어지고 있다. 또한 최근 트렌드인 웰빙(well-being)으로 인해 여가활동에 대한 욕망이 점점 커져가면서 레저 및 스포츠 인구가 해마다 크게 늘어나고 있는 추세이기 때문에 소비자들의 욕구를 충분히 만족시켜줄 수 있는 기능성 섬유제품이 주목받고 있다.In addition, as interest in leisure and leisure culture grows, there is an increasing demand for functional fibers having a pleasant out-of-the-box concept such as body protection and identity expression in the textile industry. Accordingly, there is a growing interest in high moisture permeability and high moisture permeability materials with high water pressure and high moisture permeability for the purpose of improving discomfort and improving exercise functionality. In addition, due to the recent trend of well-being, the leisure and sports population is increasing year by year as the desire for leisure activities grows. Therefore, functional fiber products that can satisfy consumers' needs are attracting attention.
레저 또는 스포츠용 의류의 경우 투습방수 기능이 필수적으로 내수압, 투습성, 촉감(Touch) 등의 기능성 증대를 위하여 현재까지 많은 코팅 가공법이 연구 개발되고 있으며, 그 중 대표적인 것이 건식 라미네이팅공법을 사용하는 것이다.In the case of leisure or sports clothes, moisture-proof and waterproof function is indispensable. To increase functionality such as water pressure, moisture permeability, and touch, many coating methods have been researched and developed. Among them, dry laminating method is used.
섬유가공 선진국에서는 수지를 이형지 위에 캐스팅하여 기능성 필름을 형성 한 후 이를 원단과 접합시키는 라미네이팅공법에 의해 투습방수포를 제조하고 있으며 이에 대한 연구개발이 활발히 진행되고 있다.Textile processing In the developed countries, the moisture permeable tarpaulins are manufactured by casting the resin on the release paper to form a functional film and then bonding it with the fabric.
방사선을 차단하는 방사선 차폐기능이 도입된 섬유에 대한 개발도 활발히 진행되고 있다.The development of fibers incorporating a radiation shielding function that shields radiation is actively under way.
대한민국 등록특허 제10-0513842호는 방사선 차폐용 직물 및 그 제조방법에 관한 것으로서, 황산바륨 등 유기 요오드계 물질을 이용하여 방사선 차페용 직물을 제조하는 기술이 소개되어 있어 납에 의한 인체 유해성이 없고 경량화를 달성할 수 있는 장점이 있기는 하지만, 중성자 차폐에 대한 효과가 없으며 단순히 황산바륨 자체로는 감마선이나 X선에 대한 차폐 효과가 뛰어나지 못하는 문제점이 있다. 또한, 대한민국 공개특허 제10-2010-0047510호는 나노 크기의 방사선 차폐물질을 포함하는 방사선 차폐재 및 이의 제조방법에 관한 것으로서, 나노 입자 사이즈의 방사선 차폐물질을 고분자에 혼합하는 기술, 즉 금속 나노입자를 사용함으로써 방사선과의 충돌 확률을 높이는 기술이 소개되어 있으나 경량화에는 유리할지라도 일부 납 성분이 적용되어 인체 유해성이 있으며, 전체 고분자 대비 금속 나노 입자가 최대 20% 정도 비율로 사용되기 때문에 분산효과는 뛰어날지라도 고분자 비율이 높아 공극이 크므로 방사선의 높은 투과력을 감안 한다면 차폐 효과에 대한부분은 미흡할 것으로 예측 가능하고, 산화보론(B2O3) 단일 물질의 사용만으로는 넓은 에너지 분포를 가지는 중성자의 차폐에는 한계가 있을 것으로 예측될 뿐만 아니라, 섬유에 적용하기에는 나노 금속 입자가 너무 고가이기 때문에 경제성에 부합하지 못하는 단점이 있다.Korean Patent No. 10-0513842 relates to a radiation shielding fabric and a manufacturing method thereof, and a technique for manufacturing a fabric for a radiator using an organic iodine-based material such as barium sulfate is introduced, and there is no human harm caused by lead There is a merit that light weight can be achieved, but there is no effect on neutron shielding, and barium sulphate itself does not have excellent shielding effect against gamma ray or X-ray. Korean Patent Laid-Open No. 10-2010-0047510 discloses a radiation shielding material containing a nano-sized radiation shielding material and a method of manufacturing the same, wherein a nanoparticle-sized radiation shielding material is mixed with a polymer, that is, Has been introduced to increase the probability of collision with radiology. However, even if it is advantageous for weight reduction, some lead components are harmful to human body, and metal nanoparticles are used at a ratio of about 20% Because of the high ratio of polymer and large voids, it is predictable that the shielding effect will be insufficient considering the high permeability of the radiation. The use of a single substance of boron oxide (B 2 O 3 ) In addition to being expected to have limitations, Because the nano metal particles is too high there is a disadvantage it does not meet the affordability.
방사선 차폐섬유에 방사능 차폐를 위하여 다양한 금속물질이나 고분자를 포함시키는 것에 대한 다수의 기술들이 공개되어 있으나, 아직까지 방사선에 장기간 노출되는 경우 차폐재의 열화나 손상이 급격히 진행되는 것을 방지하는 기술에 대해서는 많은 연구가 진행되지 못하였다. 또한, 알파, 베타, 양성자, 감마선, X선 등의 방사선을 좀 더 효과적으로 차폐할 수 있는 기술의 개발은 여전히 요구되고 있다.Radiation shielding Although a number of techniques have been disclosed for incorporating a variety of metallic materials or polymers into radiation shielding fibers for radiation shielding, there has been a great deal of technology to prevent rapid deterioration or damage of the shielding material in the case of long- Research has not been conducted. In addition, there is still a need to develop a technique that can more effectively shield radiation such as alpha, beta, proton, gamma ray, and X-ray.
무엇보다도, 현재까지는 상기와 같이 자연 방사선의 차단기능을 갖추면서도 투습방수 기능을 가지는 소재는 개발되지 않았으며, 친수성 폴리우레탄 수지에 흡습성물질, 중성자차폐물질, 방사선차폐물질 및 무기첨가제를 첨가 및 혼합하여 제조된 혼합조성물을 이용하여 방사선차폐필름을 제조한 뒤 방사선차폐필름을 직물에 라미네이팅공법을 이용하여 부착시켜서 투습방수포를 제조함으로써, 투습방수 기능을 가질 뿐만 아니라, 토양, 암반, 대기 또는 건물 등에서 발생되는 자연 방사선의 차폐기능이 뛰어난 장점이 있기 때문에 레저 및 스포츠용 의류에 사용될 수 있는 자연 방사선 차폐기능을 겸비한 투습방수포에 대한 개발은 미비한 실정이다.Above all, until now, there has not been developed a material having a breathing and waterproof function while having a function of blocking natural radiation as described above, and adding and mixing a hygroscopic material, a neutron shielding material, a radiation shielding material and an inorganic additive to a hydrophilic polyurethane resin A radiation shielding film is manufactured by using the mixed composition prepared in the above-described manner, and then the radiation shielding film is attached to the fabric by using a laminating method to produce a moisture-permeable waterproofing film. Because of the excellent shielding function of natural radiation generated, the development of a moisture-proof tarpaulin having a natural radiation shielding function which can be used for leisure and sports clothes is not very developed.
본 발명은 상술한 것과 같은 문제점을 해결하고 필요한 기술을 제공하기 위하여 안출된 것으로서,The present invention has been made to solve the above-mentioned problems and provide a necessary technique,
본 발명의 목적은 친수성 폴리우레탄 수지에 흡습성물질, 중성자차폐물질, 방사선차폐물질 및 무기첨가제를 첨가 및 혼합하여 제조된 혼합조성물을 이용하여 방사선차폐필름을 제조한 뒤 방사선차폐필름을 직물에 라미네이팅공법을 이용하여 부착시켜서 투습방수포를 제조함으로써, 투습방수 기능을 가질 뿐만 아니라, 토양, 암반, 대기 또는 건물 등에서 발생되는 자연 방사선의 차폐기능이 뛰어난 장점이 있는 자연 방사선 차폐기능을 겸비한 투습방수포 및 그 제조방법을 제공하는 것이다.It is an object of the present invention to provide a radiation shielding film by using a mixed composition prepared by adding and mixing a hygroscopic material, a neutron shielding material, a radiation shielding material and an inorganic additive to a hydrophilic polyurethane resin and then applying a radiation shielding film to the fabric by a laminating method Permeable tarpaulin having a natural radiation shielding function which is excellent in the shielding function of natural radiation generated in soil, rock, air, or buildings as well as having a moisture-proof and waterproof function by producing a moisture- Method.
또한, 본 발명의 다른 목적은 자연 방사선 차폐기능을 겸비한 투습방수포는 납을 사용하지 않으면서 친수성 폴리우레탄 수지에 방사선차폐물질을 혼합하여 제조함으로써 알파, 베타, 양성자, 감마선등의 자연 방사선을 차폐하는 기능과 내수압, 투습도, 박리강도가 우수한 자연 방사선 차폐기능을 겸비한 투습방수포 및 그 제조방법을 제공하는 것이다.Another object of the present invention is to provide a moisture-permeable tarpaulin having a function of shielding natural radiation such as alpha, beta, proton, and gamma rays by mixing a radiation shielding material with a hydrophilic polyurethane resin without using lead, And has a natural radiation shielding function excellent in water pressure, water vapor permeability and peel strength, and a manufacturing method thereof.
상기와 같은 목적을 달성하기 위한 본 발명의 일 실시형태로서,In order to achieve the above object, according to one embodiment of the present invention,
친수성 폴리우레탄 수지인 베이스수지, 흡습성물질 및 중성자차폐물질을 혼합하여 혼합조성물을 제조하는 혼합조성물제조단계; 상기 혼합조성물제조단계에서 제조된 혼합조성물에 용매를 첨가하여 분산 및 점도를 조절하는 분산및점도조절단계; 상기 분산및점도조절단계에서 분산 및 점도가 조절된 혼합조성물에 방사선차폐물질 및 무기첨가제를 첨가하는 방사선차폐물질첨가단계; 상기 방사선차폐물질첨가단계에서 방사선차폐물질이 첨가된 혼합조성물을 이형지 표면에 코팅하여 코팅층을 형성시키고 경화시켜서 방사선차폐필름을 제조하는 방사선차폐필름제조단계; 및 상기 방사선차폐필름제조단계에서 제조된 방사선차폐필름의 코팅층에 폴리우레탄 접착제를 도포하여 접착층을 형성시키고 접착층에 직물을 적층시킨 뒤 라미네이팅공법을 이용하여 코팅처리하고 경화시켜서 투습방수포를 제조하는 투습방수포제조단계;를 포함하는 것을 특징으로 하는 자연 방사선 차폐기능을 겸비한 투습방수포의 제조방법을 제공할 수 있다.Preparing a mixed composition by mixing a base resin which is a hydrophilic polyurethane resin, a hygroscopic material and a neutron shielding material to prepare a mixed composition; A dispersion and viscosity control step of adding a solvent to the mixed composition prepared in the step of preparing the mixed composition to adjust dispersion and viscosity; Adding a radiation shielding material and an inorganic additive to the mixed composition whose dispersion and viscosity are controlled in the dispersion and viscosity control step; Forming a radiation shielding film on the surface of the release paper by coating a mixture composition containing the radiation shielding material in the radiation shielding material addition step to form a coating layer and curing the radiation shielding film; And a coating layer of a radiation shielding film prepared in the step of preparing the radiation shielding film, wherein a polyurethane adhesive is applied to form an adhesive layer, a fabric is laminated on the adhesive layer, a coating is performed using a laminating method, And a manufacturing step of irradiating the radiation protection film with the radiation shielding function.
본 발명에 있어서, 상기 혼합조성물제조단계에서는, 베이스수지 100중량부에 대해 흡습성물질 5 내지 15중량부 및 중성자차폐물질 8 내지 18중량부의 비율로 혼합되는 것을 특징으로 할 수 있다.In the present invention, in the step of preparing the mixed composition, 5 to 15 parts by weight of the hygroscopic material and 8 to 18 parts by weight of the neutron shielding material are mixed with 100 parts by weight of the base resin.
상기 혼합조성물제조단계의 흡습성물질은, 실리카흄(silica fume), 콜로이드실리카(colloidal silica) 및 실리케이트(silicate)로 구성된 흡습성물질군에서 선택된 1종 이상인 것을 특징으로 할 수 있다.The hygroscopic material in the step of preparing the mixed composition may be at least one selected from the group consisting of silica fume, colloidal silica, and silicate.
또한, 상기 혼합조성물제조단계의 중성자차폐물질은, 폴리비닐알코올(PVA), 중밀도폴리에틸렌(MDPE), 고밀도폴리에틸렌(HDPE), 저밀도폴리에틸렌(LDPE), 파라핀 및 탄소로 이루어진 중성자차폐물질군에서 선택된 1종 이상이며, 분말형태인 것을 특징으로 할 수 있다.Also, the neutron shielding material in the step of preparing the mixed composition is selected from a group of neutron shielding materials consisting of polyvinyl alcohol (PVA), medium density polyethylene (MDPE), high density polyethylene (HDPE), low density polyethylene (LDPE) And may be in the form of powder.
본 발명에 있어서, 상기 혼합조성물제조단계에서는, 베이스수지 100중량부에 대해 흡습성물질인 실리카흄(silica fume) 5 내지 15중량부, 중성자차폐물질인 탄소분말 5 내지 15중량부 및 중성자차폐물질인 파라핀분말 3 내지 5중량부의 비율로 혼합되는 것을 특징으로 할 수 있다.In the present invention, 5 to 15 parts by weight of a silica fume as a hygroscopic material, 5 to 15 parts by weight of a carbon powder as a neutron shielding material, and 5 to 15 parts by weight of a neutron shielding material, paraffin And 3 to 5 parts by weight of the powder.
본 발명에 있어서, 상기 분산및점도조절단계의 용매는, 이소프로필알코올(PA), 메틸에틸케톤(MEK), 톨루엔, 디메틸포름아미드(DMF) 및 크실렌으로 구성된 용매군에서 선택된 1종 이상인 것을 특징으로 할 수 있다.In the present invention, the solvent in the dispersion and viscosity control step is at least one selected from the group consisting of solvents consisting of isopropyl alcohol (PA), methyl ethyl ketone (MEK), toluene, dimethylformamide (DMF) and xylene .
본 발명에 있어서, 상기 분산및점도조절단계의 용매는, 메틸에틸케톤(MEK) 20중량부, 톨루엔 10중량부 및 디메틸포름아미드(DMF) 20중량부의 비율로 혼합된 것임을 특징으로 할 수 있다.In the present invention, the solvent of the dispersion and viscosity control step may be mixed with 20 parts by weight of methyl ethyl ketone (MEK), 10 parts by weight of toluene and 20 parts by weight of dimethylformamide (DMF).
본 발명에 있어서, 상기 방사선차폐물질첨가단계에서는, 분산 및 점도가 조절된 혼합조성물 100중량부에 대해 방사선차폐물질 10 내지 50중량부 및 무기첨가제 5 내지 10중량부의 비율로 첨가되는 것을 특징으로 할 수 있다.In the present invention, 10 to 50 parts by weight of the radiation shielding material and 5 to 10 parts by weight of the inorganic additive are added to 100 parts by weight of the mixed composition having the controlled dispersion and viscosity in the step of adding the radiation shielding material .
상기 방사선차폐물질첨가단계의 방사선차폐물질은, 금속분말 5 내지 30중량부 및 금속산화물분말 5 내지 20중량부의 비율로 혼합된 것임을 특징으로 할 수 있다.The radiation shielding material in the step of adding the radiation shielding material may be a mixture of 5 to 30 parts by weight of the metal powder and 5 to 20 parts by weight of the metal oxide powder.
상기 방사선차폐물질 중 금속분말은, 티타늄, 지르코늄, 몰리브덴 및 텅스텐으로 구성된 금속분말군에서 선택된 1종 이상인 것을 특징으로 할 수 있다.The metal powder of the radiation shielding material may be at least one selected from the group consisting of metal powder composed of titanium, zirconium, molybdenum, and tungsten.
상기 방사선차폐물질 중 금속산화물분말은, 산화철, 산화티타늄, 산화텅스텐 및 산화마그네슘으로 구성된 금속산화물분말군에서 선택된 1종 이상인 것을 특징으로 할 수 있다.The metal oxide powder in the radiation shielding material may be at least one selected from the group consisting of metal oxide powders composed of iron oxide, titanium oxide, tungsten oxide, and magnesium oxide.
상기 방사선차폐물질첨가단계의 방사선차폐물질은, 금속분말인 텅스텐 5 내지 30중량부 및 금속산화물분말인 산화철 5 내지 20중량부의 비율로 혼합된 것임을 특징으로 할 수 있다.The radiation shielding material in the step of adding the radiation shielding material may be mixed in a ratio of 5 to 30 parts by weight of tungsten as a metal powder and 5 to 20 parts by weight of iron oxide as a metal oxide powder.
또한, 상기 방사선차폐물질첨가단계의 무기첨가제는, 수산화칼슘, 수산화마그네슘, 탄산마그네슘, 염화바륨 및 황산바륨으로 구성된 무기첨가제군에서 선택된 1종 이상인 것을 특징으로 할 수 있다.The inorganic additive in the step of adding the radiation shielding material may be at least one selected from the group consisting of inorganic additives consisting of calcium hydroxide, magnesium hydroxide, magnesium carbonate, barium chloride and barium sulfate.
상기 방사선차폐물질첨가단계의 무기첨가제는, 황산바륨인 것을 특징으로 할 수 있다.The inorganic additive in the step of adding the radiation shielding material may be barium sulfate.
본 발명에 있어서, 상기 방사선차폐필름제조단계에서는, 이형지 표면에 방사선차폐물질이 첨가된 혼합조성물을 8 내지 25㎛의 두께로 코팅하여 코팅층을 형성시키고, 110 내지 140℃의 온도에서 30 내지 60초 동안 건조 및 경화시키는 것을 특징으로 할 수 있다.In the present invention, in the step of producing the radiation shielding film, a mixed composition to which a radiation shielding material is added is coated to a thickness of 8 to 25 탆 to form a coating layer, and the coating is formed at a temperature of 110 to 140 캜 for 30 to 60 seconds Lt; / RTI > and drying and curing for a while.
본 발명에 있어서, 상기 투습방수포제조단계에서는, 방사선차폐필름의 코팅층에 폴리우레탄 접착제를 10 내지 20㎛의 두께로 도포하여 접착층을 형성시키고, 접착층에 직물을 적층시킨 뒤 라미네이팅공법을 이용하여 코팅처리하고, 110 내지 140℃의 온도에서 30 내지 60초 동안 건조 및 경화시키는 것을 특징으로 할 수 있다.In the present invention, in the step of producing the moisture-proofing and defoaming film, a polyurethane adhesive is applied to the coating layer of the radiation shielding film to a thickness of 10 to 20 탆 to form an adhesive layer, a fabric is laminated on the adhesive layer, And drying and curing at a temperature of 110 to 140 ° C for 30 to 60 seconds.
본 발명의 다른 실시형태는 상기의 방법으로 제조되는 것을 특징으로 하는 자연 방사선 차폐기능을 겸비한 투습방수포를 제공할 수 있다.Another embodiment of the present invention can provide a moisture-permeable tarpaulin having a natural radiation shielding function, which is manufactured by the above-described method.
본 발명의 일 실시형태에 따른 자연 방사선 차폐기능을 겸비한 투습방수포는 친수성 폴리우레탄 수지에 흡습성물질, 중성자차폐물질, 방사선차폐물질 및 무기첨가제를 첨가 및 혼합하여 제조된 혼합조성물을 이용하여 방사선차폐필름을 제조한 뒤 방사선차폐필름을 직물에 라미네이팅공법을 이용하여 부착시켜서 투습방수포를 제조함으로써, 투습방수 기능을 가질 뿐만 아니라, 토양, 암반, 대기 또는 건물 등에서 발생되는 자연 방사선의 차폐기능이 뛰어난 장점이 있다.The moisture-permeable protective film having a natural radiation shielding function according to an embodiment of the present invention can be produced by using a mixed composition prepared by adding and mixing a hygroscopic material, a neutron shielding material, a radiation shielding material and an inorganic additive to a hydrophilic polyurethane resin, And then attaching the radiation shielding film to the fabric by using the laminating method so as to produce a moisture permeable tarpaulin that not only has a moisture permeable and waterproof function but also has an excellent shielding function against natural radiation generated in the soil, have.
또한, 본 발명의 일 실시형태에 따른 자연 방사선 차폐기능을 겸비한 투습방수포는 납을 사용하지 않으면서 친수성 폴리우레탄 수지에 방사선차폐물질을 혼합하여 제조함으로써 알파, 베타, 양성자, 감마선등의 자연 방사선을 차폐하는 기능과 내수압, 투습도, 박리강도가 우수한 장점이 있다.In addition, the moisture-permeable tarpaulin having a natural radiation shielding function according to an embodiment of the present invention can be manufactured by mixing a radiation shielding material with a hydrophilic polyurethane resin without using lead, thereby obtaining natural radiation such as alpha, beta, proton, Shielding function, water pressure, moisture permeability and peel strength.
즉, 본 발명의 일 실시형태에 따른 자연 방사선 차폐기능을 겸비한 투습방수포는 자연 방사선 0.01μSV/h ~ 0.10μSV/h 범위에서 차폐율 90% 이상 차폐효과가 있으며, 투습도가 8,000 g/m²24HR 이상(JIS L 10099(A-1) 염화칼슘법), 7 m₂Pa/Watt 이하(Skin model법)의 효과를 나타내며, 내수압 8,000 ㎜H2O 이상을 나타내고, 촉감이 부드러우며, 박리강도 및 세탁내구성이 우수하기 때문에, 레저, 아웃도어용 및 레인코트용에 적합한 복합 기능성을 가지는 장점이 있다.That is, the moisture-permeable tarpaulin having a natural radiation shielding function according to one embodiment of the present invention has a shielding effect of not less than 90% in the range of natural radiation 0.01 μSv / h to 0.10 μSv / h and has a moisture permeability of 8,000 g / And exhibits the effect of less than 7 m 2 Pa / Watt (Skin model method), exhibits a water pressure of 8,000 ㎜ H 2 O or more, is smooth in touch, excellent in peel strength and durability Therefore, there is an advantage that it has a complex function suitable for leisure, outdoor and raincoat.
도 1은 본 발명의 일 실시형태에 따른 자연 방사선 차폐기능을 겸비한 투습방수포의 제조방법을 공정 단계 별로 나타낸 순서도이다.BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a flowchart showing a manufacturing method of a moisture-proof and waterproofing foam having a natural radiation shielding function according to an embodiment of the present invention, step by step.
이하, 본원의 발명이 속하는 기술분야에서 통상의 지식을 가진 자가 용이하게 실시할 수 있도록 본 발명의 실시형태를 들어 상세히 설명한다. 본 발명의 실시형태는 당업계에서 평균적인 지식을 가진 자에게 본 발명을 더욱 완전하게 설명하기 위해서 제공되는 것이다. 따라서, 본 발명의 실시형태는 여러 가지 다른 형태로 변형될 수 있으며, 본 발명의 범위가 이하 설명하는 실시형태로 한정되는 것은 아니다.Hereinafter, embodiments of the present invention will be described in detail so that those skilled in the art can easily carry out the present invention. Embodiments of the present invention are provided to more fully describe the present invention to those skilled in the art. Therefore, the embodiments of the present invention can be modified into various other forms, and the scope of the present invention is not limited to the following embodiments.
본 발명의 명세서 전체에서, 어떤 부분이 어떤 구성요소를 포함한다고 할 때, 이는 특별히 반대되는 기재가 없는 한 다른 구성요소를 제외하는 것이 아니라 다른 구성 요소를 더 포함할 수 있는 것을 의미한다.Throughout the description of the present invention, when a part includes an element, it is understood that the element may include other elements, not the exclusion of any other element unless specifically stated otherwise.
본 발명의 명세서 전체에서, 어떤 단계가 다른 단계와 “상에” 또는 “전에” 위치하고 있다고 할 때, 이는 어떤 단계가 다른 단계와 직접적 시계열적인 관계에 있는 경우뿐만 아니라, 각 단계 후의 혼합하는 단계와 같이 두 단계의 순서에 시계열적 순서가 바뀔 수 있는 간접적 시계열적 관계에 있는 경우와 동일한 권리를 포함할 수 있다.In the specification of the present invention, it is to be understood that when a step is located "on" or "before" another step, this is not only the case where a step is in a direct time series relationship with another step, And may have the same rights as in the case of an indirect temporal relationship in which the temporal order of the two phases can be changed.
본 발명의 명세서 전체에서 사용되는 정도의 용어 “약”, “실질적으로” 등은 언급된 의미에 고유한 제조 및 물질 허용 오차가 제시될 때 그 수치에서 또는 그 수치에 근접한 의미로 사용되고, 본 발명의 이해를 돕기 위해 정확하거나 절대적인 수치가 언급된 개시 내용을 비양심적인 침해자가 부당하게 이용하는 것을 방지하기 위해 사용된다. 본원 명세서 전체에서 사용되는 용어 “~(하는) 단계” 또는 “~의 단계”는 “~를 위한 단계”를 의미하지 않는다.The terms " about ", " substantially ", etc. used to the extent that they are used throughout the specification of the present invention are used in their numerical values or in close proximity to their numerical values when the manufacturing and material tolerances inherent in the meanings mentioned are presented, Is used to prevent unauthorized exploitation by an unscrupulous infringer of precise or absolute disclosures in order to aid in the understanding of the disclosure. The term " step " or " step of ~ " used throughout the specification does not mean " step for.
본 발명은 자연 방사선 차폐기능을 겸비한 투습방수포 및 그 제조방법에 관한 것으로, 본 발명의 일 실시형태에 따른 자연 방사선 차폐기능을 겸비한 투습방수포의 제조방법은 혼합조성물제조단계, 분산및점도조절단계, 방사선차폐물질첨가단계, 방사선차폐필름제조단계 및 투습방수포제조단계를 포함할 수 있다.The present invention relates to a moisture-permeable tarpaulin having a function of shielding natural radiation and a method of manufacturing the same, and a method of manufacturing a moisture-proof tarpaulin having a natural radiation shielding function according to an embodiment of the present invention includes the steps of preparing a mixed composition, A step of adding a radiation shielding material, a step of manufacturing a radiation shielding film, and a step of manufacturing a moisture barrier.
이하, 본 발명의 일 실시형태에 따른 자연 방사선 차폐기능을 겸비한 투습방수포(이하, ‘방사선차폐투습방수포’이라고도 함)의 제조방법을 구체적으로 설명한다. 본 발명의 일 실시형태에 따른 자연 방사선 차폐기능을 겸비한 투습방수포는 후술하는 제조방법에 의하여 보다 명확하게 이해될 수 있다.Hereinafter, a method of manufacturing a moisture-permeable and waterproof film (hereinafter also referred to as a "radiation shielding moisture and moisture proof film") having a natural radiation shielding function according to an embodiment of the present invention will be described in detail. The moisture-proof and waterproof film having the natural radiation shielding function according to the embodiment of the present invention can be understood more clearly by the following manufacturing method.
도 1은 본 발명의 일 실시형태에 따른 자연 방사선 차폐기능을 겸비한 투습방수포의 제조방법을 공정 단계별로 나타낸 순서도이다. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a flowchart showing a manufacturing method of a moisture-permeable and waterproofing foam having a natural radiation shielding function according to an embodiment of the present invention in process steps.
우선, 혼합조성물제조단계를 수행할 수 있다(S100).First, a mixed composition manufacturing step may be performed (S 100 ).
친수성 폴리우레탄 수지인 베이스수지, 흡습성물질 및 중성자차폐물질을 혼합하여 혼합조성물을 제조하는 혼합조성물제조단계를 수행할 수 있다.It is possible to carry out a step of preparing a mixed composition by mixing a base resin, a hygroscopic material and a neutron shielding material, which are hydrophilic polyurethane resins, to prepare a mixed composition.
본 발명의 일 실시형태에 따르면, 상기 혼합조성물제조단계에서는, 베이스수지 100중량부에 대해 흡습성물질 5 내지 15중량부 및 중성자차폐물질 8 내지 18중량부의 비율로 혼합되는 것을 특징으로 할 수 있다.According to one embodiment of the present invention, in the step of preparing the mixed composition, 5 to 15 parts by weight of the hygroscopic material and 8 to 18 parts by weight of the neutron shielding material are mixed with 100 parts by weight of the base resin.
상기 베이스수지 100중량부에 대해 흡습성물질은 5 내지 15중량부의 비율로 혼합되는 것이 바람직한데, 이는 흡습성물질이 5중량부 미만의 비율로 혼합될 경우에는 최종적으로 제조된 방사선차폐투습방수포의 투습성의 기능이 저하될 우려가 있기 때문이며, 15중량부를 초과하는 비율로 혼합될 경우에는 방사선차폐필름제조단계에서 제조되는 방사선차폐필름의 강도가 저하되어 내수압적인 측면에서 결함을 가져올 수 있기 때문이다. It is preferable that the hygroscopic material is mixed at a ratio of 5 to 15 parts by weight with respect to 100 parts by weight of the base resin. If the hygroscopic material is mixed at a ratio of less than 5 parts by weight, the moisture- If the mixing ratio is more than 15 parts by weight, the strength of the radiation shielding film produced in the step of preparing the radiation shielding film may be lowered to cause defects in terms of water pressure resistance.
또한, 상기 베이스수지 100중량부에 대해 중성자차폐물질은 8 내지 18중량부의 비율로 혼합되는 것이 바람직한데, 이는 중성자차폐물질이 8중량부 미만의 비율로 혼합될 경우에는 중성자차폐물질의 혼합비율이 너무 낮아서 중성자 차폐효과가 저감될 우려가 있기 때문이며, 중성자차폐물질이 18중량부를 초과하는 비율로 혼합될 경우에는 추후 투습방수포제조단계에서 직물과의 결합력이 저하되거나 시트로 제작되었을 때의 강도가 저하되어 차폐 소재로 적용하기 어려운 문제점이 발생할 수 있기 때문이다.It is preferable that the neutron shielding material is mixed at a ratio of 8 to 18 parts by weight with respect to 100 parts by weight of the base resin. If the neutron shielding material is mixed at a ratio of less than 8 parts by weight, the mixing ratio of the neutron shielding material When the neutron shielding material is mixed at a ratio exceeding 18 parts by weight, the bonding strength with the fabric is lowered at the manufacturing step of the moisture-permeable and waterproof fabric, and the strength at the time of producing the sheet is lowered Which is difficult to apply as a shielding material.
혼합조성물제조단계에서 사용되는 베이스수지는 차폐 필름이나 시트층을 형성한다. 상기 베이스수지는 친수성 폴리우레탄 수지인 것이 가장 바람직하다. 친수성 폴리우레탄 수지는 섬유소재와의 결합력이 우수하여 내구성이 높고 유연성이 뛰어나 투습방수 및 방사선 차폐 소재로서 적합하다. 또한, 수소밀도가 높아 고속 중성자를 감속시키는데 효과적이다.The base resin used in the mixed composition production step forms a shielding film or a sheet layer. The base resin is most preferably a hydrophilic polyurethane resin. The hydrophilic polyurethane resin has excellent durability and excellent flexibility because it has excellent bonding strength with fiber materials and is suitable as moisture-proof waterproofing and radiation shielding material. Also, the hydrogen density is high, which is effective for decelerating high-speed neutrons.
따라서, 본 발명의 일 실시형태에 따른 방사선차폐투습방수포를 제조하는 과정에서 혼합조성물에 포함되는 베이스수지는 친수성 폴리우레탄 수지를 사용하는 것이 가장 바람직하다.Therefore, it is most preferable to use a hydrophilic polyurethane resin as the base resin included in the mixed composition in the process of manufacturing the radiation shielding moisture-permeable and waterproofing foam according to one embodiment of the present invention.
본 발명의 일 실시형태에 따르면, 상기 혼합조성물제조단계의 흡습성물질은, 실리카흄(silica fume), 콜로이드실리카(colloidal silica) 및 실리케이트(silicate)로 구성된 흡습성물질군에서 선택된 1종 이상인 것을 특징으로 할 수 있다.According to an embodiment of the present invention, the hygroscopic material in the step of preparing the mixed composition is at least one selected from the group consisting of silica fume, colloidal silica, and silicate .
실리카흄(silica fume)은 실리콘 제조 시 발생하는 초미립자의 규소 부산물을 전기집진장치에 의해서 얻어지는 혼화재로 분말도 0.1㎛ 이상의 초미립자(시멘트 입자의 약 1/25)로 형성되어 있다.The silica fume is an admixture which is obtained by the electrostatic precipitator of the silicon by-product of the ultra-fine particles generated in the production of silicon, and the powder is formed of ultrafine particles having a particle size of 0.1 μm or more (about 1/25 of the cement particles).
콜로이드실리카(colloidal silica)는 실리카졸(silica Sol)이라고도 하며, 음(-)전하를 띠는 무정질 실리카(SiO2) 미립자가 수중에서 콜로이드 상태를 이룬 것을 말하고, 외관상 투명하거나 유백색을 띄고 있으며, 실리카졸의 실리카 미립자는 일반적으로 구형의 구조를 이루고 있다. 본 발명에서 사용되는 콜로이드실리카(colloidal silica)는 용제로 메탄올을 사용한 것이다.Colloidal silica is also referred to as silica sol. Amorphous silica (SiO 2 ) fine particles having a negative charge have a colloidal state in water. The colloidal silica is apparently transparent or milky white, Silica fine particles of silica sol generally have a spherical structure. The colloidal silica used in the present invention uses methanol as a solvent.
실리케이트(silicate)는 1종 혹은 1종 이상의 금속 산화물과 실리카(SiO2)의 결합에 의해서 생긴 화합물을 의미한다.Silicate refers to a compound formed by bonding one or more metal oxides with silica (SiO 2 ).
본 발명에서는 혼합조성물을 이용하여 방사선차폐투습방수포를 제조하는 과정에서, 투습성 부여를 목적으로 흡습성물질을 포함시킨다. 또한, 본 발명에서는 흡습성물질로 실리카흄(silica fume)을 사용하는 것이 가장 바람직하다.In the present invention, a hygroscopic material is included for the purpose of imparting moisture permeability in the process of manufacturing a radiation shielding moisture barrier material using the mixed composition. In the present invention, it is most preferable to use a silica fume as a hygroscopic material.
본 발명의 일 실시형태에 따르면, 상기 혼합조성물제조단계의 중성자차폐물질은, 폴리비닐알코올(PVA, polyvinyl alcohol), 중밀도폴리에틸렌(MDPE, medium density polyethylene), 고밀도폴리에틸렌(HDPE, high density polyethylene), 저밀도폴리에틸렌(LDPE, low density polyethylene), 파라핀(paraffin) 및 탄소(carbon)로 이루어진 중성자차폐물질군에서 선택된 1종 이상이며, 분말형태인 것을 특징으로 할 수 있다. 또한, 본 발명에서는 중성자차폐물질로 탄소분말과 파라핀분말을 혼합하여 사용하는 것이 가장 바람직하다.According to an embodiment of the present invention, the neutron shielding material in the mixed composition preparing step may be a polyvinyl alcohol (PVA), a medium density polyethylene (MDPE), a high density polyethylene (HDPE) , A low density polyethylene (LDPE), a paraffin, and a carbon, and may be in powder form. In the present invention, it is most preferable to mix the carbon powder and the paraffin powder as the neutron shielding material.
상기 파라핀분말은 곧은 사슬의 파라핀계 탄화수소(CH3(CH2)nCH3)로, 탄소원자가 풍부하고, 붕소 화합물은 미세 흡수 단면적인 크고 넓은 에너지 분포를 가져 중성자를 차폐하기에 적절하다. 중성자를 차폐하기 위해서는 중성자와 질량이 비슷한 수소, 산소, 탄소 등의 가벼운 원자의 함유량이 높은 것이 바람직하다.The paraffin powder is a straight chain paraffinic hydrocarbon (CH 3 (CH 2 ) n CH 3 ), which is rich in carbon atoms, and the boron compound has a large and broad energy distribution with a fine absorption cross section and is suitable for shielding neutrons. In order to shield neutrons, it is preferable that the content of light atoms such as hydrogen, oxygen, and carbon is high, which is similar in mass to neutrons.
상기 탄소분말은 풀러렌(fullerene), 탄소나노섬유(carbon nanofiber) 또는 탄소나노튜브(carbon nanotube) 중 어느 하나 일 수 있다. 탄소분말은 입자 직경이 5 내지 200㎚인 것이 바람직하다. 탄소나노섬유는 높은 선팽창계수를 가지며, 비열이 0.7 KJ/㎏으로서 열적 특성이 매우 우수하다. 또한, 상기 나노 탄소 섬유(NCF: Nano Activated Carbon Fiber)는 나노 사이즈의 미세기공(micro pore)이 표면에 분포되어 있어 활성탄에 비해 더 넓은 표면적을 가지며 기공이 균일하게 분산되어 있어 중성자 포집 능력도 더욱 우수한 장점이 있다. 즉, 상기 나노탄소섬유는 흡수단면적이 1,000±50㎡/g으로 높아 중성자를 매우 효과적으로 차폐할 수 있는 장점이 있다. The carbon powder may be any one of fullerene, carbon nanofiber, and carbon nanotube. The carbon powder preferably has a particle diameter of 5 to 200 nm. Carbon nanofibers have a high coefficient of linear expansion and a specific heat of 0.7 KJ / kg, which is very excellent in thermal properties. In addition, the nano-activated carbon fiber (NCF) has nano-sized micro pores distributed on the surface, and thus has a wider surface area than that of activated carbon, and evenly disperses pores, There is an excellent advantage. That is, the nanocarbon fibers have an absorption cross-sectional area as high as 1,000 ± 50 m 2 / g, which is advantageous in that neutron can be effectively shielded.
본 발명의 일 실시형태에 따르면, 상기 혼합조성물제조단계에서는, 베이스수지 100중량부에 대해 흡습성물질인 실리카흄(silica fume) 5 내지 15중량부, 중성자차폐물질인 탄소분말 5 내지 15중량부 및 중성자차폐물질인 파라핀분말 3 내지 5중량부의 비율로 혼합되는 것을 특징으로 할 수 있다.According to an embodiment of the present invention, in the step of preparing the mixed composition, 5 to 15 parts by weight of a silica fume which is a hygroscopic material, 5 to 15 parts by weight of a carbon powder as a neutron shielding material, And 3 to 5 parts by weight of paraffin powder as a shielding material.
따라서, 혼합조성물제조단계에서는 친수성 폴리우레탄 수지인 베이스수지 100중량부에 대해 흡습성물질인 실리카흄(silica fume) 5 내지 15중량부, 중성자차폐물질인 탄소분말 5 내지 15중량부 및 중성자차폐물질인 파라핀분말 3 내지 5중량부의 비율로 혼합하여 혼합조성물을 제조하는 것이 가장 바람직하다.Therefore, in the step of preparing the mixed composition, 5 to 15 parts by weight of a silica fume as a hygroscopic material, 5 to 15 parts by weight of a carbon powder as a neutron shielding material and 5 to 15 parts by weight of a paraffin as a neutron shielding material are mixed with 100 parts by weight of a base resin which is a hydrophilic polyurethane resin. It is most preferable to mix the powders in a ratio of 3 to 5 parts by weight to prepare a mixed composition.
다음으로, 분산및점도조절단계를 수행할 수 있다(S200).Next, dispersion and viscosity control steps may be performed (S 200 ).
상기 혼합조성물제조단계에서 제조된 혼합조성물에 용매를 첨가하여 분산 및 점도를 조절하는 분산및점도조절단계를 수행할 수 있다.A solvent may be added to the mixed composition prepared in the step of preparing the mixed composition to carry out a dispersion and viscosity control step of controlling dispersion and viscosity.
혼합조성물의 분산 및 조절을 위하여 용매의 첨가량을 제어함으로써 코팅 가공성 및 필름의 두께 조절을 용이하게 할 수 있다.Controlling the addition amount of the solvent for dispersion and adjustment of the mixed composition makes it easy to control the coating processability and the thickness of the film.
본 발명의 일 실시형태에 따르면, 상기 분산및점도조절단계의 용매는, 이소프로필알코올(PA, isopropyl alcohol), 메틸에틸케톤(MEK, methylethylketone), 톨루엔(toluene), 디메틸포름아미드(DMF, dimethylformamide) 및 크실렌(xylene)으로 구성된 용매군에서 선택된 1종 이상인 것을 특징으로 할 수 있다.According to an embodiment of the present invention, the solvent of the dispersion and viscosity control step may be selected from the group consisting of isopropyl alcohol (PA), methylethylketone (MEK), toluene, dimethylformamide ), And xylene (xylene).
또한, 본 발명의 일 실시형태에 따르면, 상기 분산및점도조절단계의 용매는, 메틸에틸케톤(MEK) 20중량부, 톨루엔 10중량부 및 디메틸포름아미드(DMF) 20중량부의 비율로 혼합된 것임을 특징으로 할 수 있다.According to an embodiment of the present invention, the solvent in the dispersion and viscosity control step is a mixture of 20 parts by weight of methyl ethyl ketone (MEK), 10 parts by weight of toluene and 20 parts by weight of dimethylformamide (DMF) .
따라서, 분산및점도조절단계에서는 상기 혼합조성물제조단계에서 제조된 혼합조성물에 메틸에틸케톤(MEK) 20중량부, 톨루엔 10중량부 및 디메틸포름아미드(DMF) 20중량부의 비율로 혼합된 용매를 첨가하여 분산 및 점도를 조절하는 것이 가장 바람직하다.Accordingly, in the dispersion and viscosity control step, 20 parts by weight of methyl ethyl ketone (MEK), 10 parts by weight of toluene and 20 parts by weight of dimethylformamide (DMF) are mixed with the mixed composition prepared in the step of preparing the mixed composition It is most preferable to adjust the dispersion and viscosity.
다음으로, 방사선차폐물질첨가단계를 수행할 수 있다(S300).Next, a step of adding a radiation shielding material may be performed (S 300 ).
상기 분산및점도조절단계에서 분산 및 점도가 조절된 혼합조성물에 방사선차폐물질 및 무기첨가제를 첨가하는 방사선차폐물질첨가단계를 수행할 수 있다.A radiation shielding material adding step may be performed in which the radiation shielding material and the inorganic additive are added to the mixed and dispersed mixed composition in the dispersion and viscosity control step.
본 발명의 일 실시형태에 따르면, 상기 방사선차폐물질첨가단계에서는, 분산 및 점도가 조절된 혼합조성물 100중량부에 대해 방사선차폐물질 10 내지 50중량부 및 무기첨가제 5 내지 10중량부의 비율로 첨가되는 것을 특징으로 할 수 있다.According to an embodiment of the present invention, in the radiation shielding material addition step, 10 to 50 parts by weight of the radiation shielding material and 5 to 10 parts by weight of the inorganic additive are added to 100 parts by weight of the mixed and controlled viscosity composition . ≪ / RTI >
상기 분산 및 점도가 조절된 혼합조성물 100중량부에 대해 방사선차폐물질은 10 내지 50중량부의 비율로 혼합되는 것이 바람직한데, 이는 방사선차폐물질이 10중량부 미만으로 첨가될 경우 방사선차폐물질의 첨가비율이 너무 낮아서 최종적으로 제조된 방사선차폐투습방수포의 방사선 차폐 효과가 저감될 우려가 있기 때문이며, 방사선차폐물질이 50중량부를 초과하는 비율로 첨가될 경우 추후 투습방수포제조단계에서 직물과의 결합력이 저하되거나 시트로 제작되었을 때의 강도가 저하되어 차폐 소재로 적용하기 어려운 문제점이 발생할 수 있기 때문이다.It is preferable that the radiation shielding material is mixed at a ratio of 10 to 50 parts by weight with respect to 100 parts by weight of the mixed and controlled composition of dispersion and viscosity. When the radiation shielding material is added in an amount of less than 10 parts by weight, Is too low to reduce the radiation shielding effect of the finally produced radiation shielding moisture barrier. If the radiation shielding material is added in a proportion exceeding 50 parts by weight, the bonding strength with the fabric in the manufacturing step of the moisture barrier is deteriorated This is because the strength when the sheet is made is lowered, which makes it difficult to apply it as a shielding material.
또한, 상기 분산 및 점도가 조절된 혼합조성물 100중량부에 대해 무기첨가제 5 내지 10중량부의 비율로 혼합되는 것이 바람직한데, 이는 무기첨가제가 5중량부 미만으로 첨가될 경우 최종적으로 제조된 방사선차폐투습방수포의 방사선 차폐 효과가 저감될 우려가 있기 때문이며, 무기첨가제가 10중량부를 초과하는 비율로 첨가될 경우 추후 투습방수포제조단계에서 직물과의 결합력이 저하되거나 시트로 제작되었을 때의 강도가 저하되어 차폐 소재로 적용하기 어려운 문제점이 발생할 수 있기 때문이다.Also, it is preferable that the inorganic additive is mixed at a ratio of 5 to 10 parts by weight with respect to 100 parts by weight of the mixed and controlled viscosity of the mixed composition. If the inorganic additive is added in an amount of less than 5 parts by weight, When the inorganic additive is added in a proportion exceeding 10 parts by weight, the bonding strength with the fabric is lowered in the manufacturing step of the moisture-permeable and waterproof fabric, and the strength when the inorganic additive is made into a sheet is lowered, It is difficult to apply it as a material.
본 발명의 일 실시형태에 따르면, 상기 방사선차폐물질첨가단계의 방사선차폐물질은, 금속분말 5 내지 30중량부 및 금속산화물분말 5 내지 20중량부의 비율로 혼합된 것임을 특징으로 할 수 있다.According to an embodiment of the present invention, the radiation shielding material in the step of adding the radiation shielding material may be a mixture of 5 to 30 parts by weight of the metal powder and 5 to 20 parts by weight of the metal oxide powder.
본 발명에서 사용되는 방사선차폐물질로는 금속분말 1종 및 금속산화물분말 1종이 혼합된 것이 바람직하며, 전자밀도가 상대적으로 큰 유·무기물질이나 방사능 차폐 성능이 우수한 것으로 알려진 유·무기물질들을 사용할 수 있다. 또한, 상기 금속분말과 금속산화물분말은 복합체 형태로 사용할 수도 있고, 금속분말과 금속산화물분말은 입자 직경이 0.01 내지 100㎛인 것을 사용할 수 있다.The radiation shielding material used in the present invention is preferably a mixture of one kind of metal powder and one kind of metal oxide powder and it is preferable to use oil and inorganic materials having relatively high electron density or organic and inorganic materials having excellent radiation shielding performance . The metal powder and the metal oxide powder may be used in the form of a composite, and the metal powder and the metal oxide powder may have a particle diameter of 0.01 to 100 탆.
본 발명의 일 실시형태에 따르면, 상기 방사선차폐물질 중 금속분말은, 티타늄, 지르코늄, 몰리브덴 및 텅스텐으로 구성된 금속분말군에서 선택된 1종 이상인 것을 특징으로 할 수 있다. 금속분말은 전자밀도가 상대적으로 큰 금속을 사용하는 것이 바람직하다.According to an embodiment of the present invention, the metal powder of the radiation shielding material may be at least one selected from the group consisting of metal powder composed of titanium, zirconium, molybdenum, and tungsten. It is preferable that the metal powder use a metal having a relatively high electron density.
또한, 본 발명의 일 실시형태에 따르면, 상기 방사선차폐물질 중 금속산화물분말은, 산화철, 산화티타늄, 산화텅스텐 및 산화마그네슘으로 구성된 금속산화물분말군에서 선택된 1종 이상인 것을 특징으로 할 수 있다.According to an embodiment of the present invention, the metal oxide powder of the radiation shielding material may be at least one selected from the group consisting of metal oxide powder composed of iron oxide, titanium oxide, tungsten oxide, and magnesium oxide.
또한, 상기 방사선차폐물질첨가단계의 방사선차폐물질은, 금속분말인 텅스텐 5 내지 30중량부 및 금속산화물분말인 산화철 5 내지 20중량부의 비율로 혼합된 것임을 특징으로 할 수 있다.Also, the radiation shielding material in the step of adding the radiation shielding material may be mixed in a ratio of 5 to 30 parts by weight of tungsten, which is a metal powder, and 5 to 20 parts by weight, of iron oxide, which is a metal oxide powder.
또한, 상기 방사선차폐물질첨가단계의 무기첨가제는, 수산화칼슘, 수산화마그네슘, 탄산마그네슘, 염화바륨 및 황산바륨으로 구성된 무기첨가제군에서 선택된 1종 이상인 것을 특징으로 할 수 있다.The inorganic additive in the step of adding the radiation shielding material may be at least one selected from the group consisting of inorganic additives consisting of calcium hydroxide, magnesium hydroxide, magnesium carbonate, barium chloride and barium sulfate.
본 발명에서는 인체에 무해하며 방사선 차폐 효과가 우수하면서도 밀도가 큰 무기첨가제룰 사용하는 것이 바람직하며, 무기첨가제는 입자 직경이 0.01 내지 100㎛인 것을 사용하는 것이 바람직하다.In the present invention, it is preferable to use an inorganic additive which is harmless to the human body and has high radiation shielding effect and high density, and the inorganic additive preferably has a particle diameter of 0.01 to 100 mu m.
아울러, 상기 방사선차폐물질첨가단계의 무기첨가제는, 황산바륨인 것을 특징으로 할 수 있다.In addition, the inorganic additive in the step of adding the radiation shielding material may be barium sulfate.
따라서, 방사선차폐물질첨가단계에서는 분산 및 점도가 조절된 혼합조성물 100중량부에 대해 방사선차폐물질 중 금속분말인 텅스텐 5 내지 30중량부, 방사선차폐물질 중 금속산화물분말인 산화철 5 내지 20중량부 및 무기첨가제인 염화바륨 5 내지 10중량부의 비율로 첨가하는 것이 가장 바람직하다.Therefore, in the step of adding the radiation shielding material, 5 to 30 parts by weight of tungsten, which is a metal powder in the radiation shielding material, 5 to 20 parts by weight of iron oxide, which is a metal oxide powder in the radiation shielding material, And most preferably 5 to 10 parts by weight of barium chloride as an inorganic additive.
다음으로, 방사선차폐필름제조단계를 수행할 수 있다(S400).Next, a radiation shielding film manufacturing step may be performed (S 400 ).
상기 방사선차폐물질첨가단계에서 방사선차폐물질이 첨가된 혼합조성물을 이형지 표면에 코팅하여 코팅층을 형성시키고 경화시켜서 방사선차폐필름을 제조하는 방사선차폐필름제조단계를 수행할 수 있다.The radiation shielding film may be prepared by coating the surface of the release composition with the radiation-shielding material-added mixed composition in the step of adding the radiation shielding material to form a coating layer and curing the radiation shielding film.
본 발명의 일 실시형태에 따르면, 상기 방사선차폐필름제조단계에서는, 이형지 표면에 방사선차폐물질이 첨가된 혼합조성물을 8 내지 25㎛의 두께로 코팅하여 코팅층을 형성시키고, 110 내지 140℃의 온도에서 30 내지 60초 동안 건조 및 경화시키는 것을 특징으로 할 수 있다.According to one embodiment of the present invention, in the step of manufacturing a radiation shielding film, a mixed composition to which a radiation shielding material is added on the surface of a release paper is coated to a thickness of 8 to 25 탆 to form a coating layer, Followed by drying and curing for 30 to 60 seconds.
다음으로, 투습방수포제조단계를 수행할 수 있다(S500).Next, a step of manufacturing a moisture-permeable tar can be performed (S 500 ).
상기 방사선차폐필름제조단계에서 제조된 방사선차폐필름의 코팅층에 폴리우레탄 접착제를 도포하여 접착층을 형성시키고 접착층에 직물을 적층시킨 뒤 라미네이팅공법을 이용하여 코팅처리하고 경화시켜서 투습방수포를 제조하는 투습방수포제조단계를 수행할 수 있다.A polyurethane adhesive is applied to the coating layer of the radiation shielding film manufactured in the step of producing the radiation shielding film to form an adhesive layer, a fabric is laminated on the adhesive layer, a coating is performed using a laminating method, and the layer is cured to produce a moisture- Step can be performed.
직물은 폴리에스터섬유, 나일론섬유, 면섬유, 양모섬유, 레이온섬유 등 다양한 종류의 천연섬유 및 반합성섬유와 같은 직물을 사용할 수 있다.The fabrics may be fabric fabrics such as polyester fibers, nylon fibers, cotton fibers, wool fibers, rayon fibers, and various other natural and semi-synthetic fibers.
본 발명에서는 방사선차폐필름에 폴리우레탄 접착제를 이용하여 전면에 직물을 접착 하거나 도트 접착을 직물과 결합 시켜 라미네이팅공법을 사용하여 방사선차폐투습방수포를 제조한다.In the present invention, a radiation shielding film is manufactured by bonding a fabric to a front surface of a radiation shielding film with a polyurethane adhesive or by bonding a dot adhesion with a fabric, using a laminating method.
본 발명의 일 실시형태에 따르면, 상기 투습방수포제조단계에서는, 방사선차폐필름의 코팅층에 폴리우레탄 접착제를 10 내지 20㎛의 두께로 도포하여 접착층을 형성시키고, 접착층에 직물을 적층시킨 뒤 라미네이팅공법을 이용하여 코팅처리하고, 110 내지 140℃의 온도에서 30 내지 60초 동안 건조 및 경화시키는 것을 특징으로 할 수 있다.According to one embodiment of the present invention, in the step of manufacturing the moisture-proofing and defoaming film, a polyurethane adhesive is applied to the coating layer of the radiation shielding film to a thickness of 10 to 20 탆 to form an adhesive layer, a fabric is laminated on the adhesive layer, And then drying and curing at a temperature of 110 to 140 캜 for 30 to 60 seconds.
본 발명의 일 실시형태에 따라 제조된 방사성차폐투습방수포는 스포츠 웨어용 의류의 사용에 국한되는 것이 아니라, 일반 캐주얼 의류 등에도 널리 유용하게 사용될 수 있는 장점이 있다.The radiation shielding breathable waterproof fabric manufactured according to one embodiment of the present invention is advantageous not only in the use of clothing for sportswear but also in general casual clothes and the like.
이하, 본 발명의 일 실시형태에 따라 제조된 방사선차폐투습방수포와 본 발명의 실시형태와는 다르게 제조된 비교예의 방사선차폐투습방수포를 별도로 제조한 뒤, 방사선 산란선 차폐 실험(방사선 차폐율 및 방사선 변동률), 중성자 차폐 성능 평가 실험 및 투습방수 성능 평가 실험을 실시하였다. 본 발명의 일 실시형태에 따라 제조된 방사선차폐투습방수포는 후술하는 방사선 산란선 차폐 실험, 중성자 차폐 성능 평가 실험 및 투습방수 성능 평가 실험에 의하여 보다 명확하게 이해될 수 있다.Hereinafter, the radiation shielding breathable fabric manufactured according to the embodiment of the present invention and the radiation shielding breathable barrier fabric of the comparative example manufactured differently from the embodiment of the present invention are separately prepared, and then the radiation shielding radiation shielding experiment (radiation shielding ratio and radiation Neutron shielding performance evaluation experiment and waterproofing performance evaluation test. The radiation shielding moisture barrier fabric manufactured according to an embodiment of the present invention can be understood more clearly by the radiation scattering line shielding experiment, the neutron shielding performance evaluation experiment, and the moisture permeation waterproofing performance evaluation experiment described later.
[[ 방사선차폐투습방수포의Radiation shielding 제조] Produce]
본 발명의 일 실시형태에 따라 실시예 1 내지 4의 방사선차폐투습방수포를 제조하였으며, 본 발명의 일 실시형태와는 다르게 비교예 1 내지 3의 방사선차폐투습방수포를 제조하였다The radiation shielding breathing and waterproofing fabric of Examples 1 to 4 was prepared according to an embodiment of the present invention, and the radiation shielding breathable foam of Comparative Examples 1 to 3 was prepared in a manner different from the embodiment of the present invention
[실시예 1][Example 1]
1. 혼합조성물제조단계 : 친수성 폴리우레탄수지 100중량부(동성화학 D-ACE 1200그레이드)에 대해 실리카흄(silica fume) 5중량부, 카본분말 5중량부 및 파라핀분말(고형분 72%) 3중량의 비율로 혼합하여 혼합조성물을 제조한다.1. Preparation of mixed composition: 5 parts by weight of silica fume, 5 parts by weight of carbon powder and 3 parts by weight of paraffin powder (solid content 72%) were added to 100 parts by weight of a hydrophilic polyurethane resin (D- To prepare a mixed composition.
2. 분산및점도조절단계 : 혼합조성물에 메틸에틸케톤(MEK) 20중량부, 톨루엔 10중량부 및 디메틸포름아미드(DMF) 20중량부의 비율로 혼합된 용매를 첨가하여 분산 및 점도를 조절한다.2. Dispersion and Viscosity Control Step: 20 parts by weight of methyl ethyl ketone (MEK), 10 parts by weight of toluene and 20 parts by weight of dimethylformamide (DMF) are added to the mixed composition to adjust the dispersion and viscosity.
3. 방사선차폐물질첨가단계 : 분산 및 점도가 조절된 혼합조성물 100중량부에 대해 텅스텐 5중량부, 산화철 5중량부 및 황산바륨 10중량부의 비율로 첨가한다.3. Radiation shielding material adding step: 5 parts by weight of tungsten, 5 parts by weight of iron oxide and 10 parts by weight of barium sulfate are added to 100 parts by weight of the mixed composition having controlled dispersion and viscosity.
4. 방사선차폐필름제조단계 : 이형지 표면에 사선차폐물질이 첨가된 혼합조성물을 콤마 나이프로 15㎛의 두께가 되도록 코팅하여 코팅층을 형성시키고, 130℃의 온도에서 45초 동안 건조 및 경화시켜서 방사선차폐필름을 제조한다.4. Preparation of Radiation Shielding Film: The mixed composition containing the ray shielding material on the surface of the releasing paper was coated with a comma knife to a thickness of 15 μm to form a coating layer, which was dried and cured at a temperature of 130 ° C. for 45 seconds, A film is prepared.
5. 투습방수포제조단계 : 방사선차폐필름의 코팅층에 폴리우레탄 접착제를 콤마 나이프로 10㎛의 두께가 되도록 도포하여 접착층을 형성시키고, 접착층에 직물을 적층시킨 뒤 라미네이팅공법을 이용하여 코팅처리하고, 140℃의 온도에서 45초 동안 건조 및 경화시켜서 방사선차폐투습방수포를 제조한다.5. Preparation of moisture-proof and water-repellent fabric: A polyurethane adhesive was applied to the coating layer of the radiation shielding film so as to have a thickness of 10 mu m with a comma knife to form an adhesive layer, laminating fabrics on the adhesive layer, coating treatment using a laminating method, Lt; 0 > C for 45 seconds to prepare a radiation shielding moisture barrier.
[실시예 2][Example 2]
1. 혼합조성물제조단계 : 친수성 폴리우레탄수지 100중량부(동성화학 D-ACE 1200그레이드)에 대해 실리카흄(silica fume) 10중량부, 카본분말 15중량부 및 파라핀분말(고형분 72%) 3중량의 비율로 혼합하여 혼합조성물을 제조한다.1. Preparation of mixed composition: 10 parts by weight of silica fume, 15 parts by weight of carbon powder and 3 parts by weight of paraffin powder (solid content 72%) were added to 100 parts by weight of hydrophilic polyurethane resin (homogeneous D-ACE 1200 grade) To prepare a mixed composition.
2. 분산및점도조절단계 : 혼합조성물에 메틸에틸케톤(MEK) 20중량부, 톨루엔 10중량부 및 디메틸포름아미드(DMF) 20중량부의 비율로 혼합된 용매를 첨가하여 분산 및 점도를 조절한다.2. Dispersion and Viscosity Control Step: 20 parts by weight of methyl ethyl ketone (MEK), 10 parts by weight of toluene and 20 parts by weight of dimethylformamide (DMF) are added to the mixed composition to adjust the dispersion and viscosity.
3. 방사선차폐물질첨가단계 : 분산 및 점도가 조절된 혼합조성물 100중량부에 대해 텅스텐 15중량부, 산화철 10중량부 및 염화바륨 5중량부의 비율로 첨가한다.3. Radiation shielding material adding step: 15 parts by weight of tungsten, 10 parts by weight of iron oxide and 5 parts by weight of barium chloride are added to 100 parts by weight of the mixed composition with controlled dispersion and viscosity.
4. 방사선차폐필름제조단계 : 이형지 표면에 사선차폐물질이 첨가된 혼합조성물을 콤마 나이프로 15㎛의 두께가 되도록 코팅하여 코팅층을 형성시키고, 130℃의 온도에서 45초 동안 건조 및 경화시켜서 방사선차폐필름을 제조한다.4. Preparation of Radiation Shielding Film: The mixed composition containing the ray shielding material on the surface of the releasing paper was coated with a comma knife to a thickness of 15 μm to form a coating layer, which was dried and cured at a temperature of 130 ° C. for 45 seconds, A film is prepared.
5. 투습방수포제조단계 : 방사선차폐필름의 코팅층에 폴리우레탄 접착제를 콤마 나이프로 10㎛의 두께가 되도록 도포하여 접착층을 형성시키고, 접착층에 직물을 적층시킨 뒤 라미네이팅공법을 이용하여 코팅처리하고, 140℃의 온도에서 45초 동안 건조 및 경화시켜서 방사선차폐투습방수포를 제조한다.5. Preparation of moisture-proof and water-repellent fabric: A polyurethane adhesive was applied to the coating layer of the radiation shielding film so as to have a thickness of 10 mu m with a comma knife to form an adhesive layer, laminating fabrics on the adhesive layer, coating treatment using a laminating method, Lt; 0 > C for 45 seconds to prepare a radiation shielding moisture barrier.
[실시예 3][Example 3]
1. 혼합조성물제조단계 : 친수성 폴리우레탄수지 100중량부(동성화학 D-ACE 1200그레이드)에 대해 실리카흄(silica fume) 15중량부, 카본분말 10중량부 및 파라핀분말(고형분 72%) 5중량의 비율로 혼합하여 혼합조성물을 제조한다.1. Preparation of mixed composition: 15 parts by weight of silica fume, 10 parts by weight of carbon powder and 5 parts by weight of paraffin powder (solid content 72%) were added to 100 parts by weight of hydrophilic polyurethane resin (D-ACE 1200 grade of homogeneous chemical) To prepare a mixed composition.
2. 분산및점도조절단계 : 혼합조성물에 메틸에틸케톤(MEK) 20중량부, 톨루엔 10중량부 및 디메틸포름아미드(DMF) 20중량부의 비율로 혼합된 용매를 첨가하여 분산 및 점도를 조절한다.2. Dispersion and Viscosity Control Step: 20 parts by weight of methyl ethyl ketone (MEK), 10 parts by weight of toluene and 20 parts by weight of dimethylformamide (DMF) are added to the mixed composition to adjust the dispersion and viscosity.
3. 방사선차폐물질첨가단계 : 분산 및 점도가 조절된 혼합조성물 100중량부에 대해 텅스텐 25중량부, 산화철 15중량부 및 황산바륨 5중량부의 비율로 첨가한다.3. Radiation shielding material adding step: 25 parts by weight of tungsten, 15 parts by weight of iron oxide and 5 parts by weight of barium sulfate are added to 100 parts by weight of the mixed composition having controlled dispersion and viscosity.
4. 방사선차폐필름제조단계 : 이형지 표면에 사선차폐물질이 첨가된 혼합조성물을 콤마 나이프로 15㎛의 두께가 되도록 코팅하여 코팅층을 형성시키고, 130℃의 온도에서 45초 동안 건조 및 경화시켜서 방사선차폐필름을 제조한다.4. Preparation of Radiation Shielding Film: The mixed composition containing the ray shielding material on the surface of the releasing paper was coated with a comma knife to a thickness of 15 μm to form a coating layer, which was dried and cured at a temperature of 130 ° C. for 45 seconds, A film is prepared.
5. 투습방수포제조단계 : 방사선차폐필름의 코팅층에 폴리우레탄 접착제를 콤마 나이프로 10㎛의 두께가 되도록 도포하여 접착층을 형성시키고, 접착층에 직물을 적층시킨 뒤 라미네이팅공법을 이용하여 코팅처리하고, 140℃의 온도에서 45초 동안 건조 및 경화시켜서 방사선차폐투습방수포를 제조한다.5. Preparation of moisture-proof and water-repellent fabric: A polyurethane adhesive was applied to the coating layer of the radiation shielding film so as to have a thickness of 10 mu m with a comma knife to form an adhesive layer, laminating fabrics on the adhesive layer, coating treatment using a laminating method, Lt; 0 > C for 45 seconds to prepare a radiation shielding moisture barrier.
[실시예 4][Example 4]
1. 혼합조성물제조단계 : 친수성 폴리우레탄수지 100중량부(동성화학 D-ACE 1200그레이드)에 대해 실리카흄(silica fume) 15중량부, 카본분말 10중량부 및 파라핀분말(고형분 72%) 5중량의 비율로 혼합하여 혼합조성물을 제조한다.1. Preparation of mixed composition: 15 parts by weight of silica fume, 10 parts by weight of carbon powder and 5 parts by weight of paraffin powder (solid content 72%) were added to 100 parts by weight of hydrophilic polyurethane resin (D-ACE 1200 grade of homogeneous chemical) To prepare a mixed composition.
2. 분산및점도조절단계 : 혼합조성물에 메틸에틸케톤(MEK) 20중량부, 톨루엔 10중량부 및 디메틸포름아미드(DMF) 20중량부의 비율로 혼합된 용매를 첨가하여 분산 및 점도를 조절한다.2. Dispersion and Viscosity Control Step: 20 parts by weight of methyl ethyl ketone (MEK), 10 parts by weight of toluene and 20 parts by weight of dimethylformamide (DMF) are added to the mixed composition to adjust the dispersion and viscosity.
3. 방사선차폐물질첨가단계 : 분산 및 점도가 조절된 혼합조성물 100중량부에 대해 텅스텐 30중량부, 산화철 20중량부 및 황산바륨 10중량부의 비율로 첨가한다.3. Radiation shielding material adding step: 30 parts by weight of tungsten, 20 parts by weight of iron oxide and 10 parts by weight of barium sulfate are added to 100 parts by weight of the mixed composition having controlled dispersion and viscosity.
4. 방사선차폐필름제조단계 : 이형지 표면에 사선차폐물질이 첨가된 혼합조성물을 콤마 나이프로 15㎛의 두께가 되도록 코팅하여 코팅층을 형성시키고, 130℃의 온도에서 45초 동안 건조 및 경화시켜서 방사선차폐필름을 제조한다.4. Preparation of Radiation Shielding Film: The mixed composition containing the ray shielding material on the surface of the releasing paper was coated with a comma knife to a thickness of 15 μm to form a coating layer, which was dried and cured at a temperature of 130 ° C. for 45 seconds, A film is prepared.
5. 투습방수포제조단계 : 방사선차폐필름의 코팅층에 폴리우레탄 접착제를 콤마 나이프로 10㎛의 두께가 되도록 도포하여 접착층을 형성시키고, 접착층에 직물을 적층시킨 뒤 라미네이팅공법을 이용하여 코팅처리하고, 140℃의 온도에서 45초 동안 건조 및 경화시켜서 방사선차폐투습방수포를 제조한다.5. Preparation of moisture-proof and water-repellent fabric: A polyurethane adhesive was applied to the coating layer of the radiation shielding film so as to have a thickness of 10 mu m with a comma knife to form an adhesive layer, laminating fabrics on the adhesive layer, coating treatment using a laminating method, Lt; 0 > C for 45 seconds to prepare a radiation shielding moisture barrier.
[비교예 1][Comparative Example 1]
실시예 1과 동일한 방법 및 조건으로 제조하되, 혼합조성물제조단계에서 실리카흄을 사용하지 않고 혼합조성물을 제조하도록 설정한 뒤, 혼합조성물제조단계, 분산및점도조절단계, 방사선차폐물질첨가단계, 방사선차폐필름제조단계 및 투습방수포제조단계를 거쳐 방사선차폐투습방수포를 제조한다.The procedure of Example 1 was repeated except that the mixed composition was prepared in the same manner as in Example 1 except that silica fume was not used in the preparation of the mixed composition. The film-making step and the step of manufacturing the moisture-permeable tarpaulin are used to prepare the radiation shielding moisture-proof tarpaulin.
[비교예 2][Comparative Example 2]
실시예 1과 동일한 방법 및 조건으로 제조하되, 혼합조성물제조단계에서 카본분말과 파라핀분말 등의 중성자차폐물질을 사용하지 않고 혼합조성물을 제조하도록 설정한 뒤, 혼합조성물제조단계, 분산및점도조절단계, 방사선차폐물질첨가단계, 방사선차폐필름제조단계 및 투습방수포제조단계를 거쳐 방사선차폐투습방수포를 제조한다.The mixture composition was prepared without using a neutron shielding material such as carbon powder and paraffin powder in the preparation of the mixed composition, and then the mixture composition was prepared, the dispersion and the viscosity control , A radiation shielding material addition step, a radiation shielding film manufacturing step, and a moistureproofing and defoaming step.
[비교예 3][Comparative Example 3]
실시예 1과 동일한 방법 및 조건으로 제조하되, 방사선차폐물질첨가단계에서 산화철을 첨가하지 않도록 하여 방사선차폐물질 중 금속산화물분말을 사용하지 않도록 설정하였으며, 황산바륨을 첨가하지 않도록 하여 무기첨가제를 사용하지 않도록 설정하였고, 분산 및 점도가 조절된 혼합조성물 100중량부에 대해 방사선차폐물질 중 금속분말인 텅스텐만 30중량부의 비율로 첨가하도록 설정한 뒤, 혼합조성물제조단계, 분산및점도조절단계, 방사선차폐물질첨가단계, 방사선차폐필름제조단계 및 투습방수포제조단계를 거쳐 방사선차폐투습방수포를 제조한다.Except that the metal oxide powder was not used in the radiation shielding material so as not to add iron oxide in the step of adding the radiation shielding material and that the inorganic additive was not used so as not to add barium sulfate And 30 parts by weight of tungsten, which is a metal powder in the radiation shielding material, is added to 100 parts by weight of the mixed composition having controlled dispersion and viscosity. Then, the mixture composition preparation step, dispersion and viscosity control step, A radiation shielding film manufacturing step, and a moisture-proofing and defoaming step.
[방사선 산란선 차폐 실험][Radiation scattering ray shielding experiment]
본 발명의 일 실시형태에 따라 제조된 실시예 1 내지 4의 방사선차폐투습방수포와 본 발명에서 한정한 공정조건에 적합하지 않도록 제조한 비교예 1 내지 3의 방사선차폐투습방수포에 대하여 방사선 실험실에서 방사선 산란선 차폐 실험을 실시하였다.The radiation shielding breathable fabric of Examples 1 to 4 prepared according to one embodiment of the present invention and the radiation shielding breathable fabric of Comparative Examples 1 to 3, which were prepared so as not to comply with the process conditions defined in the present invention, Scattering line shielding experiment.
구체적으로, 실시예 1 내지 4의 방사선차폐투습방수포와 비교예 1 내지 3의 방사선차폐투습방수포를 50×50㎝로 절단한 후, 알파선, 베타선, 감마선 및 엑스선과 평균에너지에 따라 산란 방사선 차폐율을 측정하되, 매번 그 위치를 달리하여 10회 측정한 후, 측정된 결과의 평균값과 변동률을 측정하였다. 방사선 산란선 차폐 실험을 실시한 결과는 하기 표 1에 평균 차폐율을 나타내었으며, 하기 표 2에 변동률을 나타내었다.Specifically, the radiation shielded breathing and waterproofing fabric of Examples 1 to 4 and the radiation shielding breathable and waterproofing foam of Comparative Examples 1 to 3 were cut into 50 × 50 cm, and scattering radiation shielding ratio according to the average energy of alpha ray, betaine, gamma ray, Were measured 10 times with different positions each time, and the average value and the variation rate of the measured results were measured. The results of the radiation scattering line shielding experiment are shown in Table 1 below, and the average shielding ratio is shown in Table 2 below.
변동률은 하기 계산식 1에 따라 계산하였다.The rate of change was calculated according to the following equation.
[계산식 1][Equation 1]
변동율(%) = 측정된 최대 방사선 차폐율 - 측정된 최소 방사선 차폐율(%) = Measured maximum radiation shielding rate - measured minimum radiation shielding rate
60 KeV
상기 표 1 및 표 2에 나타난 바와 같이, 실시예 1 내지 4의 방사선차폐투습방수포와 비교하였을 때 비교예 1 내지 3의 방사선차폐투습방수포는 알파선을 제외한 방사선에 있어서 차폐율이 낮게 측정되었으며, 변동률 또한 높은 수치로 나타났다.As shown in the above Tables 1 and 2, the radiation shielding moisture barrier of Comparative Examples 1 to 3, when compared with the radiation shielding moisture barrier of Examples 1 to 4, had a low shielding ratio in radiation except for the alpha ray, Also, it was high.
상기와 같은 결과를 통해, 본 발명의 일 실시형태에 따라 제조된 실시예 1 내지 4의 방사선차폐투습방수포가 알파선, 베타선, 감마선 및 엑스선의 방사선에 있어서 차폐효과가 우수함을 확인할 수 있다.From the above results, it can be confirmed that the radiation shielding breathable waterproofing fabric of Examples 1 to 4 produced according to one embodiment of the present invention has excellent shielding effect on radiation of alpha rays, betain rays, gamma rays and x-rays.
[중성자 차폐 성능 평가 실험][Neutron shielding performance evaluation test]
본 발명의 일 실시형태에 따라 제조된 실시예 1 내지 4의 방사선차폐투습방수포와 본 발명에서 한정한 공정조건에 적합하지 않도록 제조한 비교예 1 내지 3의 방사선차폐투습방수포에 대하여 중성자 차폐 성능 평가 실험을 실시하였다.The neutron shielding performance evaluation was performed for the radiation shielded breathable vapor protective films of Examples 1 to 4 prepared according to one embodiment of the present invention and the radiation shielded breathable vapor protective films of Comparative Examples 1 to 3 prepared not to meet the process conditions defined in the present invention Experiments were conducted.
구체적으로, 일정 크기의 중성자 빔 출구를 만들고, 중성자의 세기를 측정할 수 있는 검출기를 출구와 일정한 거리(5㎝)에 두고, 입사된 중성자수와 실시예 1 내지 4의 방사선차폐투습방수포와 비교예 1 내지 3의 방사선차폐투습방수포를를 통과한 중성자수의 비를 이용하여 하기와 같이 열중성자 흡수단면적 계수로 계산하였으며, 그 결과는 하기 표 3에 나타내었다.Specifically, a neutron beam exit of a predetermined size was made, and a detector capable of measuring the neutron intensity was placed at a certain distance (5 cm) from the exit, and the number of incident neutrons and the radiation shielding permeability of Examples 1 to 4 The thermal neutron absorption cross-sectional area coefficient was calculated using the ratio of neutron water passed through the radiation shielding moisture barrier of Examples 1 to 3 as follows. The results are shown in Table 3 below.
중성자 흡수 단면적 계수의 계산 방법은 하기 계산식 2와 같다.The calculation method of the neutron absorption cross-sectional area coefficient is as shown in the following formula 2.
[계산식 2][Equation 2]
I/I0=L-μ 또는 μ= [log(I0/I)]I / I 0 = L-μ or μ = [log (I 0 / I)]
(I0:입사빔, I: 투과빔, L:산란 단면적 계수, μ: 흡수단면적 계수)(I 0 : incident beam, I: transmitted beam, L: scattering cross sectional area coefficient, and μ: absorption sectional area coefficient)
상기 표 3에 나타난 바와 같이, 실시예 1 내지 4의 방사선차폐투습방수포가 비교예 1 내지 3의 방사선차폐투습방수포 보다 열 중성자 흡수단면적계수의 수치가 낮게 측정됨으로써, 본 발명의 일 실시형태에 따라 제조된 실시예 1 내지 4의 방사선차폐투습방수포가 중성자 차폐 성능이 우수함을 확인할 수 있다.As shown in the above Table 3, the radiation shielding moisture-permeable protective film of each of Examples 1 to 4 was measured to have a lower coefficient of thermal neutron absorption cross-sectional area coefficient than that of the radiation shielding moisture-permeable protective film of Comparative Examples 1 to 3, It can be confirmed that the manufactured radiation shielding breathable waterproof fabric of Examples 1 to 4 has excellent neutron shielding performance.
[투습방수 성능 평가 실험][Evaluation test of waterproofing waterproof performance]
본 발명의 일 실시형태에 따라 제조된 실시예 1 내지 4의 방사선차폐투습방수포와 본 발명에서 한정한 공정조건에 적합하지 않도록 제조한 비교예 1 내지 3의 방사선차폐투습방수포에 대하여 투습방수 성능 평가 실험을 실시하였으며, 그 결과는 하기 표 4에 나타내었다.Evaluation of breathable waterproof performance of the radiation shielded breathable vapor barrier of Examples 1 to 4 manufactured according to an embodiment of the present invention and the radiation shielded breathable vapor barrier of Comparative Examples 1 to 3 manufactured so as not to comply with the process conditions defined in the present invention The results are shown in Table 4 below.
(㎜H2O)Water pressure
(㎜H 2 O)
(g/m²24HR)Moisture permeability
(g / m²24HR)
(m₂Pa/Watt)Moisture permeability
(m < 2 > Pa / Watt)
(g/㎝)Peel strength
(g / cm)
상기 표 4에 나타난 바와 같이, 혼합조성물제조단계에서 흡습성물질을 전혀 첨가하지 않고 제조한 비교예 1의 방사선차폐투습방수포는 투습 성능이 현저히 떨어짐을 확인할 수 있었으며, 이에 반해서 실시예 1 내지 4의 방사선차폐투습방수포는 비교예 1 내지 3의 방사선차폐투습방수포와 비교하였을 때 상대적으로 내수압, 투수압, 투습도, 박리강도 및 촉감 모두 우수한 것으로 평가되었다.As shown in Table 4, it was confirmed that the radiation shielding moisture-permeable protective film of Comparative Example 1, which was prepared without adding any hygroscopic substance at the step of preparing the mixed composition, showed a remarkable decrease in moisture permeability. On the contrary, The shielded breathable tarpaulins were evaluated to be excellent in both water pressure, water permeability, moisture permeability, peel strength, and feel when compared with the radiation shielding breathable vapor barrier of Comparative Examples 1 to 3.
결론적으로, 상기 방사선 산란선 차폐 실험, 중성자 차폐 성능 평가 실험 및 투습방수 성능 평가 실험을 실시한 결과를 통해, 본 발명의 일 실시형태에 따른 자연 방사선 차폐기능을 겸비한 투습방수포는 자연 방사선 0.01μSV/h ~ 0.10μSV/h 범위에서 차폐율 90% 이상 차폐효과가 있으며, 투습도가 8,000 g/m²24HR 이상(JIS L 10099(A-1) 염화칼슘법), 7 m₂Pa/Watt 이하(Skin model법)의 효과를 나타내며, 내수압 8,000 ㎜H2O 이상을 나타내고, 촉감이 부드러우며, 박리강도 및 세탁내구성이 우수한 장점이 있음을 확인하였다.As a result, the results of the radiation scattering line shielding experiment, the neutron shielding performance evaluation experiment, and the waterproofing and waterproofing performance evaluation experiment show that the moisture permeable tarpaulin having the natural radiation shielding function according to the embodiment of the present invention has a natural radiation dose of 0.01 μSV / h The effect of shielding effect is over 90% in the range of 0.10μSV / h and 8,000g / m²24HR (JIS L 10099 (A-1) calcium chloride method) and less than 7 m₂Pa / Watt (Skin model method) , Showing a water pressure of 8,000 ㎜ H 2 O or more, a smooth feel, excellent peel strength and excellent washing durability.
이상, 실시예 및 비교예 들어 본 발명을 상세하게 설명하였으나, 본 발명은 상기 구현예에 한정되지 않으며, 여러 가지 다양한 형태로 변형될 수 있고, 본 발명의 기술적 사상 내에서 당 분야에서 통상의 지식을 가진 자에 의하여 여러 가지 많은 변형이 가능함이 명백하다. 또한, 청구범위에 기재된 본 발명의 기술적 사상을 벗어나지 않는 범위 내에서 당 기술분야의 통상의 지식을 가진 자에 의해 다양한 형태의 치환, 변형 및 변경이 가능할 것이며, 이 또한 본 발명의 범위에 속한다고 할 것이다.While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It is evident that many variations are possible by those who have the. It will be apparent to those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. something to do.
Claims (17)
상기 혼합조성물제조단계에서 제조된 혼합조성물에 용매를 첨가하여 분산 및 점도를 조절하는 분산및점도조절단계;
상기 분산및점도조절단계에서 분산 및 점도가 조절된 혼합조성물에 방사선차폐물질 및 무기첨가제를 첨가하는 방사선차폐물질첨가단계;
상기 방사선차폐물질첨가단계에서 방사선차폐물질이 첨가된 혼합조성물을 이형지 표면에 코팅하여 코팅층을 형성시키고 경화시켜서 방사선차폐필름을 제조하는 방사선차폐필름제조단계; 및
상기 방사선차폐필름제조단계에서 제조된 방사선차폐필름의 코팅층에 폴리우레탄 접착제를 도포하여 접착층을 형성시키고 접착층에 직물을 적층시킨 뒤 라미네이팅공법을 이용하여 코팅처리하고 경화시켜서 투습방수포를 제조하는 투습방수포제조단계;를 포함하는 것을 특징으로 하는 자연 방사선 차폐기능을 겸비한 투습방수포의 제조방법.Preparing a mixed composition by mixing a base resin which is a hydrophilic polyurethane resin, a hygroscopic material and a neutron shielding material to prepare a mixed composition;
A dispersion and viscosity control step of adding a solvent to the mixed composition prepared in the step of preparing the mixed composition to adjust dispersion and viscosity;
Adding a radiation shielding material and an inorganic additive to the mixed composition whose dispersion and viscosity are controlled in the dispersion and viscosity control step;
Forming a radiation shielding film on the surface of the release paper by coating a mixture composition containing the radiation shielding material in the radiation shielding material addition step to form a coating layer and curing the radiation shielding film; And
A polyurethane adhesive is applied to the coating layer of the radiation shielding film manufactured in the step of producing the radiation shielding film to form an adhesive layer, a fabric is laminated on the adhesive layer, a coating is performed using a laminating method, and the layer is cured to produce a moisture- Wherein the radiation shielding function has a function of shielding natural radiation.
상기 혼합조성물제조단계에서는,
베이스수지 100중량부에 대해 흡습성물질 5 내지 15중량부 및 중성자차폐물질 8 내지 18중량부의 비율로 혼합되는 것을 특징으로 하는 자연 방사선 차폐기능을 겸비한 투습방수포의 제조방법.The method according to claim 1,
In the mixed composition production step,
And 5 to 15 parts by weight of a hygroscopic material and 8 to 18 parts by weight of a neutron shielding material based on 100 parts by weight of the base resin.
상기 혼합조성물제조단계의 흡습성물질은,
실리카흄(silica fume), 콜로이드실리카(colloidal silica) 및 실리케이트(silicate)로 구성된 흡습성물질군에서 선택된 1종 이상인 것을 특징으로 하는 자연 방사선 차폐기능을 겸비한 투습방수포의 제조방법.The method of claim 2,
The hygroscopic substance in the step of preparing the mixed composition,
Wherein at least one selected from the group consisting of silica fume, colloidal silica, and silicate is at least one selected from the group consisting of silica fume, colloidal silica, and silicate.
상기 혼합조성물제조단계의 중성자차폐물질은,
폴리비닐알코올(PVA), 중밀도폴리에틸렌(MDPE), 고밀도폴리에틸렌(HDPE), 저밀도폴리에틸렌(LDPE), 파라핀 및 탄소로 이루어진 중성자차폐물질군에서 선택된 1종 이상이며, 분말형태인 것을 특징으로 하는 자연 방사선 차폐기능을 겸비한 투습방수포의 제조방법.The method of claim 2,
The neutron shielding material in the step of preparing the mixed composition,
Characterized in that it is at least one selected from the group consisting of polyvinyl alcohol (PVA), medium density polyethylene (MDPE), high density polyethylene (HDPE), low density polyethylene (LDPE), paraffin and carbon, A method of manufacturing a moisture-proof tarpaulin having a radiation shielding function.
상기 혼합조성물제조단계에서는,
베이스수지 100중량부에 대해 흡습성물질인 실리카흄(silica fume) 5 내지 15중량부, 중성자차폐물질인 탄소분말 5 내지 15중량부 및 중성자차폐물질인 파라핀분말 3 내지 5중량부의 비율로 혼합되는 것을 특징으로 하는 자연 방사선 차폐기능을 겸비한 투습방수포의 제조방법.The method according to claim 1,
In the mixed composition production step,
5 to 15 parts by weight of a silica fume as a hygroscopic material, 5 to 15 parts by weight of a carbon powder as a neutron shielding material and 3 to 5 parts by weight of a paraffin powder as a neutron shielding material are mixed with 100 parts by weight of a base resin And a natural radiation shielding function.
상기 분산및점도조절단계의 용매는,
이소프로필알코올(PA), 메틸에틸케톤(MEK), 톨루엔, 디메틸포름아미드(DMF) 및 크실렌으로 구성된 용매군에서 선택된 1종 이상인 것을 특징으로 하는 자연 방사선 차폐기능을 겸비한 투습방수포의 제조방법.The method according to claim 1,
The solvent in the dispersion and viscosity control step may be,
Wherein the solvent is at least one selected from the group consisting of isopropyl alcohol (PA), methyl ethyl ketone (MEK), toluene, dimethylformamide (DMF) and xylene.
상기 분산및점도조절단계의 용매는,
메틸에틸케톤(MEK) 20중량부, 톨루엔 10중량부 및 디메틸포름아미드(DMF) 20중량부의 비율로 혼합된 것임을 특징으로 하는 자연 방사선 차폐기능을 겸비한 투습방수포의 제조방법.The method according to claim 1,
The solvent in the dispersion and viscosity control step may be,
20 parts by weight of methyl ethyl ketone (MEK), 10 parts by weight of toluene and 20 parts by weight of dimethylformamide (DMF).
상기 방사선차폐물질첨가단계에서는,
분산 및 점도가 조절된 혼합조성물 100중량부에 대해 방사선차폐물질 10 내지 50중량부 및 무기첨가제 5 내지 10중량부의 비율로 첨가되는 것을 특징으로 하는 자연 방사선 차폐기능을 겸비한 투습방수포의 제조방법.The method according to claim 1,
In the step of adding the radiation shielding material,
Wherein the radiation shielding material is added at a ratio of 10 to 50 parts by weight of the radiation shielding material and 5 to 10 parts by weight of the inorganic additive to 100 parts by weight of the mixed and controlled viscosity composition.
상기 방사선차폐물질첨가단계의 방사선차폐물질은,
금속분말 5 내지 30중량부 및 금속산화물분말 5 내지 20중량부의 비율로 혼합된 것임을 특징으로 하는 자연 방사선 차폐기능을 겸비한 투습방수포의 제조방법.The method of claim 8,
The radiation shielding material in the step of adding the radiation shielding material,
5 to 30 parts by weight of the metal powder and 5 to 20 parts by weight of the metal oxide powder are mixed.
상기 방사선차폐물질 중 금속분말은,
티타늄, 지르코늄, 몰리브덴 및 텅스텐으로 구성된 금속분말군에서 선택된 1종 이상인 것을 특징으로 하는 자연 방사선 차폐기능을 겸비한 투습방수포의 제조방법.The method of claim 9,
Among the radiation shielding materials,
Titanium, zirconium, molybdenum, and tungsten. The method of manufacturing a moisture-proof and waterproofing protective coating having a natural radiation shielding function.
상기 방사선차폐물질 중 금속산화물분말은,
산화철, 산화티타늄, 산화텅스텐 및 산화마그네슘으로 구성된 금속산화물분말군에서 선택된 1종 이상인 것을 특징으로 하는 자연 방사선 차폐기능을 겸비한 투습방수포의 제조방법.The method of claim 9,
The metal oxide powder in the radiation shielding material may be,
And a metal oxide powder composed of iron oxide, titanium oxide, tungsten oxide, and magnesium oxide.
상기 방사선차폐물질첨가단계의 방사선차폐물질은,
금속분말인 텅스텐 5 내지 30중량부 및 금속산화물분말인 산화철 5 내지 20중량부의 비율로 혼합된 것임을 특징으로 하는 자연 방사선 차폐기능을 겸비한 투습방수포의 제조방법.The method of claim 8,
The radiation shielding material in the step of adding the radiation shielding material,
And 5 to 30 parts by weight of tungsten as a metal powder and 5 to 20 parts by weight of iron oxide as a metal oxide powder.
상기 방사선차폐물질첨가단계의 무기첨가제는,
수산화칼슘, 수산화마그네슘, 탄산마그네슘, 염화바륨 및 황산바륨으로 구성된 무기첨가제군에서 선택된 1종 이상인 것을 특징으로 하는 자연 방사선 차폐기능을 겸비한 투습방수포의 제조방법. The method of claim 8,
The inorganic additive in the step of adding the radiation shielding material may include,
And at least one selected from the group consisting of inorganic additives consisting of calcium hydroxide, magnesium hydroxide, magnesium carbonate, barium chloride and barium sulfate.
상기 방사선차폐물질첨가단계의 무기첨가제는,
황산바륨인 것을 특징으로 하는 자연 방사선 차폐기능을 겸비한 투습방수포의 제조방법. The method of claim 8,
The inorganic additive in the step of adding the radiation shielding material may include,
Wherein the barium sulfate is barium sulfate and has a natural radiation shielding function.
상기 방사선차폐필름제조단계에서는,
이형지 표면에 방사선차폐물질이 첨가된 혼합조성물을 8 내지 25㎛의 두께로 코팅하여 코팅층을 형성시키고, 110 내지 140℃의 온도에서 30 내지 60초 동안 건조 및 경화시키는 것을 특징으로 하는 자연 방사선 차폐기능을 겸비한 투습방수포의 제조방법. The method according to claim 1,
In the radiation shield film production step,
Characterized in that a mixed composition in which a radiation shielding material is added to the surface of the release paper is coated to a thickness of 8 to 25 탆 to form a coating layer and dried and cured at a temperature of 110 to 140 캜 for 30 to 60 seconds The method comprising the steps of:
상기 투습방수포제조단계에서는,
방사선차폐필름의 코팅층에 폴리우레탄 접착제를 10 내지 20㎛의 두께로 도포하여 접착층을 형성시키고, 접착층에 직물을 적층시킨 뒤 라미네이팅공법을 이용하여 코팅처리하고, 110 내지 140℃의 온도에서 30 내지 60초 동안 건조 및 경화시키는 것을 특징으로 하는 자연 방사선 차폐기능을 겸비한 투습방수포의 제조방법. The method according to claim 1,
In the moisture-proofing and defoaming step,
A polyurethane adhesive is applied to the coating layer of the radiation shielding film to a thickness of 10 to 20 占 퐉 to form an adhesive layer, a fabric is laminated on the adhesive layer, a coating process is performed using a laminating method, Drying and curing the radiation shielding material for a predetermined period of time.
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