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KR101298570B1 - Plastic master batch including iron nano-particle and container using the same - Google Patents

Plastic master batch including iron nano-particle and container using the same Download PDF

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KR101298570B1
KR101298570B1 KR1020060137772A KR20060137772A KR101298570B1 KR 101298570 B1 KR101298570 B1 KR 101298570B1 KR 1020060137772 A KR1020060137772 A KR 1020060137772A KR 20060137772 A KR20060137772 A KR 20060137772A KR 101298570 B1 KR101298570 B1 KR 101298570B1
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plastic
iron
nanoparticles
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pet
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KR20080062237A (en
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김태영
황정준
고석근
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주식회사 피앤아이
에스케이케미칼주식회사
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/20—Compounding polymers with additives, e.g. colouring
    • C08J3/22—Compounding polymers with additives, e.g. colouring using masterbatch techniques
    • C08J3/226—Compounding polymers with additives, e.g. colouring using masterbatch techniques using a polymer as a carrier
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D1/00—Rigid or semi-rigid containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material or by deep-drawing operations performed on sheet material
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2300/00—Characterised by the use of unspecified polymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/02—Elements
    • C08K3/08—Metals
    • C08K2003/0831—Gold
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/011—Nanostructured additives

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)

Abstract

산소투과도가 낮아 식품의 보존기간을 연장시킬 수 있는, 철(Fe) 나노입자를 함유하는 플라스틱 마스터배치(master batch) 및 이를 포함하는 용기가 개시된다. 상기 철 나노입자를 함유하는 플라스틱 마스터배치는 플라스틱 펠렛 표면에 철 입자가 진공 증착되어 이루어진다. Disclosed are a plastic master batch containing iron (Fe) nanoparticles and a container containing the same, which have a low oxygen permeability and can extend food shelf life. The plastic masterbatch containing the iron nanoparticles is formed by vacuum deposition of iron particles on the surface of the plastic pellets.

나노입자, 진공 증착법, 철, 산소투과도 Nanoparticles, Vacuum Vapor Deposition, Iron, Oxygen Permeability

Description

철 나노입자를 함유하는 플라스틱 마스터배치 및 이를 포함하는 용기{Plastic master batch including iron nano-particle and container using the same}Plastic master batch including iron nano-particle and container using the same}

본 발명은 철 나노입자를 함유하는 플라스틱 마스터배치 및 이를 포함하는 용기에 관한 것으로서, 더욱 상세하게는 산소투과도가 낮아 식품의 보존기간을 연장시킬 수 있는, 철 나노입자를 함유하는 플라스틱 마스터배치 및 이를 포함하는 용기에 관한 것이다.The present invention relates to a plastic masterbatch containing iron nanoparticles and a container comprising the same, and more particularly, to a plastic masterbatch containing iron nanoparticles, which can extend the shelf life of foods with low oxygen permeability and It relates to a container containing.

나노입자는 입자의 크기가 나노미터(보통 100 nm 이하) 단위로 작으므로, 기존의 마이크로미터 단위의 입자와는 다른 새로운 기계적, 화학적, 전기적, 자기적, 광학적 물성 등을 갖는다. 이는 단위부피에 대한 표면적 비율이 극도로 높아짐에 따라 나타나는 현상으로, 이러한 양자크기 효과를 이용하여 기존의 마이크로미터 크기의 입자에서 얻을 수 없는 새로운 응용분야가 꾸준히 개발되고 있으며, 학문적, 기술적 관심이 증대되고 있다.Nanoparticles have a small particle size of nanometers (usually 100 nm or less), and thus have new mechanical, chemical, electrical, magnetic, and optical properties different from those of conventional micrometer particles. This is due to the extremely high surface area-to-volume ratio, and by using these quantum size effects, new applications that cannot be obtained from micrometer-sized particles have been steadily developed, and academic and technical interests have increased. It is becoming.

종래의 나노입자 제조방법으로는 기계적 분쇄법, 액상 침전법, 분무법, 졸-겔법, 전기폭발법 등이 대표적이다. 그러나 기존의 나노입자 제조방법은 여러 단계의 작업공정을 거치거나, 나노입자로 제조할 수 있는 재료가 한정되는 등의 문제점이 있었다. 또한, 나노입자 간의 응집이 쉽게 발생하여 크기가 불균일하게 되고, 이를 방지하기 위하여 계면활성제나 분산제 등의 첨가제를 사용하는 경우, 제조된 나노입자에 다량의 불순물이 존재하게 되어 나노입자의 순도가 떨어지는 등의 문제가 발생되어 왔다.Conventional nanoparticle production methods include mechanical grinding, liquid phase precipitation, spraying, sol-gel, electroexplosion, and the like. However, the conventional method for producing nanoparticles has a problem such as going through a multi-step work process, or the material that can be produced with nanoparticles is limited. In addition, agglomeration between nanoparticles easily occurs, resulting in non-uniform size, and when additives such as surfactants or dispersants are used to prevent this, a large amount of impurities are present in the manufactured nanoparticles, resulting in poor purity of the nanoparticles. Problems have arisen.

순도가 높은 나노입자를 제조하기 위한 방법으로는, 진공 중에서 건식 증착법을 이용하여 금속 또는 세라믹을 증기로 만든 후, 차가운 벽에서 응축시켜 이를 회수하는 방법이 대표적이다. 그러나, 이 방법은 나노입자를 대량으로 생산하기에 부적합하며, 나노입자의 크기와 균일성 제어가 매우 어렵다.As a method for producing high purity nanoparticles, a method of making a metal or ceramic into a vapor by using a dry deposition method in a vacuum and condensing it on a cold wall is typical. However, this method is not suitable for mass production of nanoparticles, and it is very difficult to control the size and uniformity of nanoparticles.

이와 같은 문제를 해결하기 위한 방법으로서, 진공 증착법을 이용하되, 파우더를 모재로 하여 나노입자를 증착하는 방법이 고안되었다[한국특허공개　제10-2005-0088023호]. 이 방법은 진공 증착법을 이용하여 파우더 표면에 직접 나노입자를 증착시킴으로써, 나노입자들이 서로 응집되는 문제를 해결하고 순도가 매우 높은 나노입자를 얻을 수 있다.As a method for solving such a problem, a method of depositing nanoparticles using a powder as a base material, using a vacuum deposition method, has been devised (Korean Patent Publication No. 10-2005-0088023). By depositing nanoparticles directly on the surface of the powder using vacuum deposition, this method solves the problem of agglomeration of nanoparticles with each other and obtains nanoparticles of very high purity.

따라서 본 발명의 목적은 진공 증착법을 이용하여 모재인 플라스틱 펠렛 표면에 철을 코팅함으로써, 나노크기의 철 입자가 효과적으로 분산된 플라스틱 마스터배치를 제공하는 것이다.Accordingly, an object of the present invention is to provide a plastic masterbatch in which nano-sized iron particles are effectively dispersed by coating iron on the surface of the base plastic pellets using vacuum deposition.

본 발명의 또 다른 목적은 상기 철 나노입자를 함유하는 플라스틱 마스터배치를 일반 플라스틱 수지와 블렌드 가공하여, 산소 투과도가 획기적으로 줄어든 용기를 제공하는 것이다.Still another object of the present invention is to blend the plastic masterbatch containing the iron nanoparticles with a general plastic resin to provide a container with dramatically reduced oxygen permeability.

상기 목적을 달성하기 위하여, 본 발명은 플라스틱 펠렛 표면에 철 입자가 진공 증착되어 이루어진, 철 나노입자를 함유하는 플라스틱 마스터배치를 제공한다.In order to achieve the above object, the present invention provides a plastic masterbatch containing iron nanoparticles, the iron particles are vacuum deposited on the surface of the plastic pellets.

본 발명은 또한 상기 철 나노입자를 함유하는 플라스틱 마스터배치와 플라스틱 수지가 블렌드(blend) 가공되어 이루어진 용기를 제공한다.The present invention also provides a container in which the plastic masterbatch containing the iron nanoparticles and the plastic resin are blended.

이하, 본 발명을 더욱 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in more detail.

본 발명에 따른 철 나노입자를 함유하는 플라스틱 마스터배치는, 플라스틱 펠렛 표면에 철 입자가 진공 증착되어 이루어진 것으로서, 여기서 철 입자는 플라스틱 펠렛 표면에서 그 입자가 과도하게 성장하지 않고 균일한 나노크기를 가진다. 본 발명에 사용될 수 있는 플라스틱 펠렛의 비한정적인 예로는, 폴리에틸렌테레프 탈레이트(PET), 폴리메틸메타크릴레이트(PMMA), 폴리카보네이트, 폴리프로필렌, 폴리에틸렌, 폴리스티렌 등의 펠렛을 예시할 수 있다. 또한, 상기 플라스틱 펠렛의 평균직경은 1 내지 5mm인 것이 바람직하며, 펠렛의 표면에 증착된 철 입자의 평균직경은 10 내지 1000㎚, 바람직하게는 10 내지 500㎚이다. 상기 철 입자의 크기가 1000㎚를 초과하면 최종 제품의 투명도를 훼손하게 되어 바람직하지 못하다. 상기 플라스틱 마스터배치에 대하여 철 입자의 함량은 무게비로 10 내지 10000ppm이며, 철 입자의 함량이 10ppm 미만이면 산소제거 능력이 감소하고, 10000ppm을 초과하면 재료의 유변물성이 달라져 성형공정시 문제를 일으킬 가능성이 있다.The plastic masterbatch containing the iron nanoparticles according to the present invention is formed by vacuum deposition of iron particles on the surface of a plastic pellet, wherein the iron particles have a uniform nano size without excessive growth of the particles on the surface of the plastic pellet. . Non-limiting examples of plastic pellets that can be used in the present invention include pellets such as polyethylene terephthalate (PET), polymethyl methacrylate (PMMA), polycarbonate, polypropylene, polyethylene, polystyrene, and the like. . In addition, the average diameter of the plastic pellet is preferably 1 to 5mm, the average diameter of the iron particles deposited on the surface of the pellet is 10 to 1000nm, preferably 10 to 500nm. If the size of the iron particles exceeds 1000nm, the transparency of the final product is impaired, which is undesirable. For the plastic masterbatch, the content of iron particles is 10 to 10000 ppm by weight, and if the content of iron particles is less than 10 ppm, the oxygen removal ability is reduced. There is this.

본 발명에 따른 플라스틱 마스터배치의 제조는, 플라스틱 펠렛 표면에 철 입자를 진공 증착시킴과 동시에, 철 입자가 증착된 플라스틱 펠렛을 교반시키는 방법을 통하여 이루어진다. 이와 같이 증착공정 중에 교반을 수행하는 것은, 철 입자를 펠렛 전체에 고르게 증착시키기 위함이다. 따라서, 증착공정 후 균일한 나노미터 크기의 철 입자들이 펠렛에 붙어 있게 되며, 결과적으로 이러한 펠렛들로 구성되는 마스터배치는 나노크기의 철 입자들이 고르게 분포하는 형태를 가진다. The production of the plastic masterbatch according to the present invention is carried out by vacuum depositing iron particles on the surface of the plastic pellets and simultaneously stirring the plastic pellets on which the iron particles are deposited. The stirring is performed during the deposition process in order to deposit the iron particles evenly throughout the pellet. Therefore, uniform nanometer-sized iron particles are stuck to the pellets after the deposition process, and as a result, the masterbatch composed of such pellets has a form in which nano-sized iron particles are evenly distributed.

본 발명에서 사용될 수 있는 증착장치로는 이온빔 스퍼터링(sputtering) 장치, 직류/교류 스퍼터링 장치, DC 마그네트론 스퍼터링 장치 등을 예시할 수 있다. 본 발명에서 진공 증착방법의 바람직한 예로는, 먼저, 플라스틱 펠렛을 진공조에 주입한 후 진공펌프를 이용하여 진공상태를 형성한다. 이때, 진공도의 조절은 작 업조건에 따라 저진공 펌프만을 이용하거나 고진공 펌프를 조합하여 수행하며, 초기 진공은 10-1 내지 10-6 torr 범위로 유지한다. 스퍼터링 가스로는 아르곤 가스를 이용하고, 아르곤 가스의 주입량은 작업조건에 따라 변화될 수 있으며, 10-1 내지 10-4 torr 범위에서 진공을 유지하도록 주입한다. 그런 다음, 배럴 내의 임펠러를 회전시키며 철 타겟의 스퍼터링을 실시하여 플라스틱 마스터배치를 얻는다. 이때 임펠러의 회전속도는 조절이 가능하고, 스퍼터링 속도는 인가파워에 따라 1 내지 200 W/㎠의 범위에서 조절할 수 있다. 플라스틱 마스터배치에 대한 철의 함량은 스퍼터링 파워, 스퍼터링 시간, 진공도 등의 작업조건을 조절하여 변화시킬 수 있다.As the deposition apparatus that can be used in the present invention, an ion beam sputtering apparatus, a DC / AC sputtering apparatus, a DC magnetron sputtering apparatus, and the like can be exemplified. In a preferred embodiment of the vacuum deposition method in the present invention, first, the plastic pellet is injected into a vacuum chamber, and then a vacuum state is formed using a vacuum pump. At this time, the degree of vacuum is controlled by using only a low vacuum pump or a combination of high vacuum pumps according to the working conditions, the initial vacuum is maintained in the range of 10 -1 to 10 -6 torr. Argon gas is used as the sputtering gas, and the injection amount of the argon gas may vary depending on the working conditions, and is injected to maintain a vacuum in the range of 10 −1 to 10 −4 torr. Then, the impeller in the barrel is rotated to sputter the iron target to obtain a plastic masterbatch. At this time, the rotation speed of the impeller can be adjusted, the sputtering speed can be adjusted in the range of 1 to 200 W / ㎠ according to the applied power. The iron content of the plastic masterbatch can be varied by adjusting the working conditions such as sputtering power, sputtering time and vacuum degree.

본 발명에 따른 철 나노입자를 함유하는 플라스틱 마스터배치는 일반적인 플라스틱 수지와 함께 블렌드 가공하여 다양한 형태의 용기로 성형될 수 있다. 이때, 마스터배치와 혼합 사용되는 플라스틱 수지로는, 사용되는 마스터배치와 동종의 플라스틱 수지를 사용하는 것이 바람직하다. 예를 들어, PET 펠렛으로 구성된 마스터배치를 사용하여 용기를 성형하는 경우, 일반 PET 수지를 적절한 비율로 혼합하여 사용한다. 상기 플라스틱 수지의 사용량은, 사용되는 PET 마스터배치의 철 함유량 및 용도에 따라 다양하며, 바람직하게는 PET 마스터배치와 플라스틱 수지의 혼합비는 1:1 내지 1:20 이다. 상기 PET 마스터배치의 사용량이 너무 적으면 산소제거 능력이 미미할 우려가 있고, 사용량이 너무 많으면 전체 재료비가 상승하게 되어 바람직하지 못하다.The plastic masterbatch containing the iron nanoparticles according to the present invention may be blended with a general plastic resin to be molded into various types of containers. At this time, it is preferable to use the plastic resin of the same kind as the masterbatch used as a plastic resin used by mixing with a masterbatch. For example, when molding a container using a masterbatch composed of PET pellets, general PET resin is mixed and used at an appropriate ratio. The amount of the plastic resin used varies depending on the iron content and the use of the PET masterbatch used. Preferably, the mixing ratio of the PET masterbatch and the plastic resin is 1: 1 to 1:20. If the amount of the PET masterbatch is too small, the oxygen removal capacity may be insignificant. If the amount of the PET masterbatch is too large, the total material cost is increased, which is not preferable.

이하, 실시예와 비교예를 통하여 본 발명을 더욱 상세히 설명한다. 하기 실시예는 본 발명을 보다 구체적으로 설명하기 위한 것으로서, 본 발명의 범위가 이들 실시예에 의해 한정되는 것은 아니다. Hereinafter, the present invention will be described in more detail with reference to examples and comparative examples. The following examples are intended to further illustrate the present invention, and the scope of the present invention is not limited by these examples.

[실시예 1] 철 나노입자를 함유하는 PET 마스터배치의 제조 Example 1 Preparation of PET Masterbatch Containing Iron Nanoparticles

진공 이온빔 스퍼터링 장치에 철 타겟을 장착하고, PET 펠렛(SK케미칼, SKYPET BR, 펠렛 직경: 2mm) 15Kg을 진공조에 로딩한 후 진공펌프를 이용하여 약 0.001 torr의 진공이 유지되도록 하였다. 스퍼터링 가스로 아르곤 가스를 주입하여 약 0.01 torr에서 진공을 유지하도록 하였다. 상기 스퍼터링 가스 주입 후, 배럴 내의 임펠러를 회전시키며 철 타겟의 스퍼터링을 실시하였다. 제조된 PET 마스터배치에서 철 함량은 무게비로 100 ppm이었고, 철 입자의 평균직경은 100 ㎚이었다.An iron target was mounted on the vacuum ion beam sputtering apparatus, 15 kg of PET pellets (SK chemical, SKYPET BR, pellet diameter: 2 mm) were loaded into a vacuum chamber, and a vacuum of about 0.001 torr was maintained using a vacuum pump. Argon gas was injected into the sputtering gas to maintain a vacuum at about 0.01 torr. After the sputtering gas injection, the iron target was sputtered while rotating the impeller in the barrel. In the prepared PET masterbatch, the iron content was 100 ppm by weight, and the average diameter of the iron particles was 100 nm.

[실시예 2] PET 마스터배치를 이용한 PET 필름의 제조 Example 2 Preparation of PET Film Using PET Masterbatch

실시예 1에서 제조된 PET 마스터배치 20Kg에 PET 수지(SK케미칼, SKYPET BR) 20Kg를 펠렛 상태에서 교반하고, 이 혼합물을 260℃에서 압출 공정을 이용하여 두께 0.5㎜의 PET 필름을 제조하였다. 이렇게 얻어진 철이 함유된 PET 필름에 대하여, 일리노이사의 산소투과도 측정기를 사용하여 산소투과도를 측정한 결과, 0.7 ㎤/㎡ day atm이었다.20 kg of PET resin (SK Chemical, SKYPET BR) was stirred in a pellet state to 20 kg of the PET masterbatch prepared in Example 1, and the mixture was prepared at an extrusion process at 260 ° C. to prepare a PET film having a thickness of 0.5 mm. The iron-containing PET film thus obtained was measured to have an oxygen permeability using an oxygen permeability measuring instrument manufactured by Illinois. As a result, it was 0.7 cm 3 / m 2 day atm.

[실시예 3] PET 마스터배치를 이용한 PET 필름의 제조 Example 3 Preparation of PET Film Using PET Masterbatch

실시예 1에서 제조된 PET 마스터배치 10Kg에 일반 PET 수지 30Kg를 펠렛 상태에서 교반하고, 이 혼합물을 260℃에서 압출 공정을 이용하여 두께 0.5mm의 PET 필름을 제조하였다. 이렇게 얻어진 철이 함유된 PET 필름에 대하여, 일리노이사의 산소투과도 측정기를 사용하여 산소투과도를 측정한 결과, 1.7 ㎤/㎡ day atm이었다.The PET master batch 10Kg prepared in Example 1 was stirred in a pellet state of the normal PET resin 30Kg, the mixture was prepared by using an extrusion process at 260 ℃ 0.5mm thick PET film. The iron-containing PET film thus obtained was measured to have an oxygen permeability using an oxygen permeability meter manufactured by Illinois. As a result, it was 1.7 cm 3 / m 2 day atm.

[실시예 4] PET 마스터배치를 이용한 PET 필름의 제조 Example 4 Preparation of PET Film Using PET Masterbatch

실시예 1에서 제조된 PET 마스터배치 5Kg에 일반 PET 수지 35Kg를 펠렛 상태에서 교반하고, 이 혼합물을 260℃에서 압출 공정을 이용하여 두께 0.5mm의 PET 필름을 제조하였다. 이렇게 얻어진 철이 함유된 PET 필름에 대하여, 일리노이사의 산소투과도 측정기를 사용하여 산소투과도를 측정한 결과, 2.7 ㎤/㎡ day atm이었다.5 kg of the PET masterbatch prepared in Example 1 was stirred in a pellet state of 35 kg of a general PET resin, and the mixture was prepared by using an extrusion process at 260 ° C. to produce a PET film having a thickness of 0.5 mm. The iron-containing PET film thus obtained was measured for oxygen permeability using an oxygen permeability meter manufactured by Illinois. As a result, it was 2.7 cm 3 / m 2 day atm.

[비교예 1] PET 수지를 이용한 PET 필름의 제조 Comparative Example 1 Preparation of PET Film Using PET Resin

일반 PET 수지 100g를 260℃에서 압출 공정을 이용하여 두께 0.5mm의 PET 필름을 제조하였다. 이렇게 얻어진 PET 필름에 대하여, 일리노이사의 산소투과도 측정기를 사용하여 산소투과도를 측정한 결과, 7.7㎤/㎡ day atm이었다. 100 g of a general PET resin was manufactured at 260 ° C. using an extrusion process to prepare a PET film having a thickness of 0.5 mm. The PET film thus obtained was measured for oxygen permeability using an oxygen permeability measuring instrument manufactured by Illinois. As a result, it was 7.7 cm 3 / m 2 day atm.

본 발명에 따른 철 나노입자를 함유하는 PET 마스터배치를 사용하여 PET 필름을 제조한 경우(실시예 2 내지 4), 산소투과도는 0.7 내지 2.7㎤/㎡ day atm으로 낮았으나, 일반 PET 수지만을 사용한 경우(비교예 1)에는 산소투과도가 7.7㎤/㎡ day atm으로 월등히 높은 것을 알 수 있었다. 이는 본 발명의 PET 마스터배치가 극히 소량의 철을 함유하고 있지만, 철 나노입자가 이상적으로 분산되어 있어 산소투과를 매우 효과적으로 방지할 수 있음을 나타낸다.When a PET film was prepared using a PET masterbatch containing iron nanoparticles according to the present invention (Examples 2 to 4), the oxygen permeability was low as 0.7 to 2.7 cm 3 / m 2 day atm, but only general PET resin was used. In the case of using (Comparative Example 1), the oxygen permeability was found to be extremely high at 7.7 cm 3 / m 2 day atm. This indicates that although the PET masterbatch of the present invention contains an extremely small amount of iron, the iron nanoparticles are ideally dispersed to effectively prevent oxygen permeation.

이상 상술한 바와 같이, 본 발명에 따른 철 나노입자를 함유하는 플라스틱 마스터배치는, 산소를 차폐하는 성능이 우수하므로, 산소차단성을 요구하는 다양한 플라스틱 제품 분야에 적용 가능하며, 플라스틱 용기에 적용할 경우 내용물의 보존기한을 획기적으로 연장시킬 수 있는 장점이 있다.As described above, the plastic masterbatch containing the iron nanoparticles according to the present invention is excellent in the performance of shielding oxygen, and therefore can be applied to various plastic product fields requiring oxygen barrier properties, and can be applied to plastic containers. In this case, there is an advantage that can significantly extend the shelf life of the contents.

Claims (5)

평균직경이 1 내지 5 mm인 플라스틱 펠렛 표면에 평균직경이 10 내지 1000 ㎚인 철(Fe) 입자가 진공 증착되어 이루어진, 철 나노입자를 함유하는 플라스틱 마스터배치(master batch).A plastic master batch containing iron nanoparticles, in which iron (Fe) particles having an average diameter of 10 to 1000 nm are vacuum deposited on a surface of a plastic pellet having an average diameter of 1 to 5 mm. 삭제delete 제1항에 있어서, 상기 플라스틱은 폴리에틸렌테레프탈레이트(PET), 폴리메틸메타크릴레이트, 폴리카보네이트, 폴리프로필렌, 폴리에틸렌 및 폴리스티렌으로 이루어진 군으로부터 선택되는 것인 플라스틱 마스터배치.The plastic masterbatch of claim 1 wherein the plastic is selected from the group consisting of polyethylene terephthalate (PET), polymethylmethacrylate, polycarbonate, polypropylene, polyethylene, and polystyrene. 상기 청구항 1의 철 나노입자를 함유하는 플라스틱 마스터배치와, 플라스틱 수지가 블렌드 가공되어 이루어진 용기.A container comprising a plastic masterbatch containing the iron nanoparticles of claim 1 and a plastic resin blended. 평균직경이 1 내지 5 mm인 플라스틱 펠렛을 교반시키는 동시에, 상기 플라스틱 펠렛 표면에 평균직경이 10 내지 1000 ㎚인 철 입자를 진공 증착시키는 단계를 포함하는, 철 나노입자를 함유하는 플라스틱 마스터배치의 제조방법.Preparing a plastic masterbatch containing iron nanoparticles, the method comprising stirring the plastic pellets having an average diameter of 1 to 5 mm and vacuum depositing iron particles having an average diameter of 10 to 1000 nm on the surface of the plastic pellets. Way.
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