KR100835992B1 - Method for separation of pet and abs using charge-polarity - Google Patents

Method for separation of pet and abs using charge-polarity Download PDF

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KR100835992B1
KR100835992B1 KR20070017834A KR20070017834A KR100835992B1 KR 100835992 B1 KR100835992 B1 KR 100835992B1 KR 20070017834 A KR20070017834 A KR 20070017834A KR 20070017834 A KR20070017834 A KR 20070017834A KR 100835992 B1 KR100835992 B1 KR 100835992B1
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pet
abs
particles
lower electrode
mixed
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KR20070017834A
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Korean (ko)
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전호석
김경배
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한국지질자원연구원
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C7/00—Separating solids from solids by electrostatic effect
    • B03C7/02—Separators
    • B03C7/12—Separators with material falling free
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
    • B29B17/02—Separating plastics from other materials
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/62—Plastics recycling; Rubber recycling

Abstract

A PET(Polyethylene Terephthalate) and ABS(Acrylonitrile Butadiene Styrene) separation method using charge polarity is provided to secure the good quality and recovery rate of separated PET particles by applying the optimized air speed, voltage intensity, and relative humidity. A method for separating the mixed plastic of PET and ABS into of PET and ABS particles comprises a step for charging the mixed particles comprising PET and ABS particles, by friction or collision of the mixed particle and charged materials made of one of PET, rubber, HIPS(High Impact Polystyrene), calibre, and ABS and a step for passing the PET and ABS particles through a gap between a cathode plate and an anode plate, and moving the PET particle to the anode plate and the ABS particle to the cathode plate.

Description

하전극성을 이용한 폴리에틸렌테레프탈레이트와 에이비에스의 분리방법{method for separation of PET and ABS using charge-polarity}Method for separation of PET and ABS using charge-polarity

도 1은 본 발명의 일실시예에 따른 공기속도와 분리된 PET입자의 품위 및 회수율의 관계를 나타내는 그래프,1 is a graph showing the relationship between the air speed and the quality and recovery rate of the separated PET particles according to an embodiment of the present invention,

도 2는 본 발명의 일실시예에 따른 전압세기와 분리된 PET입자의 품위 및 회수율의 관계를 나타내는 그래프,2 is a graph showing the relationship between the voltage intensity and the quality and recovery of the separated PET particles according to an embodiment of the present invention,

도 3은 본 발명의 일실시예에 따른 상대습도와 분리된 PET입자의 품위 및 회수율의 관계를 나타내는 그래프.3 is a graph showing the relationship between the relative humidity and the quality and recovery of the separated PET particles according to an embodiment of the present invention.

본 발명은 하전극성을 이용하여 PET와 ABS를 분리하는 방법에 관한 것으로써, 보다 상세하게는 하전물질, 입자들의 유동을 위한 공기주입 속도, 음극판과 양극판의 전압세기 및 상대습도를 최적화하여 PET입자의 우수한 품위 및 회수율을 획득하기 위한 하전극성을 이용한 PET와 ABS의 분리방법에 관한 것이다. The present invention relates to a method for separating PET and ABS using lower electrode properties, and more specifically, PET particles by optimizing the charged material, the air injection speed for the flow of particles, the voltage strength and relative humidity of the negative electrode plate and the positive electrode plate The present invention relates to a method for separating PET and ABS using lower electrode properties to obtain an excellent quality and recovery rate.

플라스틱은 천연수지와 합성수지(synthetic resin)로 크게 구별되며, 보통 플라스틱이라고 하면 합성수지를 가리킨다. 플라스틱은 최종적으로 고형이며 분자량이 많은 것이 되지만, 제조공정 중 열에 의해 우수한 유동성 및 성형성을 가지는 특징이 있다. 이러한 플라스틱은 산업화와 경제성장으로 나무, 금속 기타 물질을 대체하는 매우 우수하고 유용한 물질로서 생활 및 산업 전반에 걸쳐 다양하게 사용되고 있다. 하지만, 플라스틱은 재활용률이 20% 내지 30% 정도의 수준으로 낮아 많은 양의 폐플라스틱을 매립이나 소각에 의해 처리하고 있는데, 플라스틱을 매립이나 소각할 경우, 이를 처리하는 처리설비를 훼손시키거나 다이옥신 및 유독가스 등을 배출하여 환경을 심각하게 오염시킨다. Plastics are largely divided into natural resins and synthetic resins, and usually plastics are synthetic resins. Plastics are finally solid and have a high molecular weight, but are characterized by having excellent fluidity and formability by heat during the manufacturing process. These plastics are very good and useful materials that replace wood, metals and other materials by industrialization and economic growth, and are used in various ways throughout life and industry. However, plastics have a low recycling rate of about 20% to 30%, so that a large amount of waste plastics are disposed of by landfill or incineration. It emits toxic gas and seriously pollutes the environment.

플라스틱으로 인한 환경오염을 규제하기 위해 정부에서는 2004년 이후, 폐플라스틱을 함유한 물질의 소각과 매립을 법으로 규제하고 있으며, EPR(Extended Producer Responsibility : 생산자책임재활용제) 및 교토의정서 발효에 따른 국내 및 국외적 경제여건과 환경규제는 폐플라스틱 재활용의 필요성을 가중시키고 있다. To regulate the environmental pollution caused by plastics, the government has regulated the incineration and landfill of waste plastic-containing materials since 2004.In addition to the EPR (Extended Producer Responsibility) and the provisions of the Kyoto Protocol, Economic conditions and environmental regulations abroad are increasing the need for recycling waste plastics.

한편, 용기 및 포장재로 사용되는 플라스틱의 재질은 약 30종 이상으로 이 중에서도 식품용으로 실생활에서 주로 사용되는 플라스틱은 폴리에틸렌(PE), 폴리프로필렌(PP), 폴리스텐(PS), 폴리에틸렌테레프탈레이트(PET), 폴리아미드(Nylon), 폴리염화비닐(PVC) 및 에이비에스(ABS : Acrylonitrile, Butadiene, Styrene) 등이 있으며 투명성 및 차단성, 접착성 등이 좋고 가격이 싼 장점으로 식품용 랩, 비닐팩 등 용기로 많이 사용되고 있다. 이러한 플라스틱들은 단독으로 혹은 서로 결합되어 사용되는데, 환경오염 방지 및 플라스틱 재활용의 활성화를 위해 경제적이면 서 분리효율이 우수한 재질별 플라스틱 분리기술의 개발이 시급한 실정이다. On the other hand, there are more than 30 kinds of plastic materials used as containers and packaging materials. Among them, plastics mainly used in real life for food are polyethylene (PE), polypropylene (PP), polysten (PS), and polyethylene terephthalate ( PET), polyamide (Nylon), polyvinyl chloride (PVC) and ABS (ABS: Acrylonitrile, Butadiene, Styrene), etc. It is widely used as a back container. These plastics are used alone or in combination with each other, it is urgent to develop a material-specific plastic separation technology with excellent separation efficiency to prevent environmental pollution and to activate plastic recycling.

본 발명은 재질별 플라스틱입자의 대전서열에 따라 적합한 하전물질을 구하고 이를 하전 시 적용하는 하전극성을 이용한 PET와 ABS의 분리방법을 제공함에 목적이 있다.It is an object of the present invention to provide a method for separating PET and ABS using the lower electrode properties to obtain a suitable charged material according to the charging sequence of the plastic particles by material.

또한, 본 발명은 최적화된 공기속도, 전압세기 및 상대습도가 적용된 하전극성을 이용한 PET와 ABS의 분리방법을 제공함에 다른 목적이 있다. In addition, the present invention has another object to provide a separation method of PET and ABS using the lower electrode applied to the optimized air velocity, voltage strength and relative humidity.

또한, 본 발명은 혼합입자의 분리과정이 신속하게 이루어지는 하전극성을 이용한 PET와 ABS의 분리방법을 제공함에 또 다른 목적이 있다. In addition, another object of the present invention is to provide a method for separating PET and ABS using lower electrode properties in which the separation process of the mixed particles is performed quickly.

따라서, 본 발명의 목적은 PET입자와 ABS입자로 이루어진 혼합입자가 PET, RUBBER, HIPS, Calibre 및 ABS 중 어느 하나의 재질로 이루어진 하전물질과 마찰 또는 충돌에 의해 하전되는 단계 및 상기 PET입자와 상기 ABS입자를 음극판과 양극판 사이에 통과시키되, 상기 PET입자는 양극판으로 이동하고, 상기 ABS입자는 음극판으로 이동하여 분리되는 단계를 포함하는 하전극성을 이용한 PET와 ABS의 분리방법에 의해 달성된다. Accordingly, an object of the present invention is the mixed particles consisting of PET particles and ABS particles are charged by friction or collision with a charged material made of any one material of PET, RUBBER, HIPS, Caliber and ABS and the PET particles and the Passing the ABS particles between the negative electrode plate and the positive electrode plate, the PET particles are moved to the positive electrode plate, the ABS particles are achieved by the separation method of PET and ABS using the lower electrode properties comprising the step of separating by moving to the negative electrode plate.

이하 첨부된 도면을 참조하여 본 발명의 바람직한 실시예를 상세히 설명하기로 한다. 이에 앞서, 본 명세서 및 청구범위에 사용된 용어나 단어는 통상적이거나 사전적인 의미로 한정해서 해석되어서는 안되며, 발명자는 그 자신의 발명을 가장 최선의 방법으로 설명하기 위해 용어의 개념을 적절하게 정의할 수 있다는 원칙에 입각하여 본 발명의 기술적 사상에 부합하는 의미와 개념으로 해석되어야만 한다. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms or words used in this specification and claims should not be construed as being limited to the common or dictionary meanings, and the inventors will appropriately define the concept of terms in order to best explain their invention in the best way possible. It should be interpreted as meaning and concept corresponding to the technical idea of the present invention based on the principle that it can.

따라서, 본 명세서에 기재된 실시예와 도면에 도시된 구성은 본 발명의 가장 바람직한 일 실시예에 불과할 뿐이고 본 발명의 기술적 사상을 모두 대변하는 것은 아니므로, 본 출원시점에 있어서 이들을 대체할 수 있는 다양한 균등물과 변형 예들이 있을 수 있음을 이해하여야 한다.Therefore, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiment of the present invention and do not represent all of the technical idea of the present invention, various modifications that can be replaced at the time of the present application It should be understood that there may be equivalents and variations.

본 발명의 일실시예에 따른 PET와 ABS의 분리방법은 하전된 PET입자와 ABS입자의 하전극성을 이용하여 PET와 ABS가 혼합된 혼합플라스틱으로부터 PET입자와 ABS입자를 분리하는 방법에 관한 것이다. The separation method of PET and ABS according to an embodiment of the present invention relates to a method of separating PET particles and ABS particles from mixed plastics mixed with PET and ABS by using the lower electrode properties of charged PET particles and ABS particles.

이하, 본 발명의 일실시예에 따른 하전극성을 이용한 PET와 ABS 분리방법을 자세히 설명하면 다음과 같다. Hereinafter, a method of separating PET and ABS using lower electrode properties according to an embodiment of the present invention will be described in detail.

우선, PET와 ABS가 혼합된 혼합플라스틱을 PET입자와 ABS입자로 이루어지는 혼합입자로 파쇄한다. 이때, 본 발명의 일실시예에 따른 혼합입자는 PET입자와 ABS입자가 화학적으로 결합된 입자의 수가 최소한이 될 수 있도록, 충분히 작은 크기임이 바람직하다. 즉, 본 발명의 일실시예에 따른 혼합입자는 PET입자와 ABS입자가 물리적으로 혼합되어 있음이 바람직하다. First, the mixed plastic mixed with PET and ABS is crushed into mixed particles composed of PET particles and ABS particles. At this time, the mixed particles according to an embodiment of the present invention is preferably a small enough size, so that the number of particles chemically bonded to the PET particles and ABS particles can be minimized. That is, the mixed particles according to an embodiment of the present invention is preferably a PET particles and ABS particles are physically mixed.

PET입자와 ABS입자에 하전극성을 부여하기 위해 PET입자와 ABS입자로 이루어지는 혼합입자를 하전물질과 마찰 또는 충돌시켜 하전시키는 작업을 수행하는데, 이때, 본 발명의 일실시예에 따른 하전물질은 PET(Polyethylene Terephthalate), RUBBER, HIPS(High Impact Polystyrene), Calibre 및 ABS(Acrylonitrile, Butadiene, Styrene) 중 어느 하나임이 바람직하다. In order to impart lower electrode properties to the PET particles and ABS particles, the mixed particles consisting of the PET particles and the ABS particles are charged with friction or colliding with the charged material, wherein the charged material according to the embodiment of the present invention is PET (Polyethylene Terephthalate), RUBBER, HIPS (High Impact Polystyrene), Caliber and ABS (Acrylonitrile, Butadiene, Styrene) is preferably any one.

본 발명의 일실시예에 따라 사용되는 하전물질은 본 발명에서 정립한 플라스틱의 재질에 따른 대전서열에 의해 결정된 것이며, 본 발명에 따른 재질별 플라스틱의 대전서열은 H-PVC, S-PVC, COPP, HOMO-PP, LDPE, HDPE, PET, RUBBER, HIPS, CALIBRE, ABS, GPPS 및 PMMA의 순서로 양극화된다. 즉, H-PVC, S-PVC, COPP, HOMO-PP, LDPE, HDPE, PET, RUBBER, HIPS, CALIBRE, ABS, GPPS 및 PMMA에서 왼쪽으로 갈수록 (-)극성으로 대전되는 경향이 나타나고, 오른쪽으로 갈수록 (+)극성으로 대전되는 경향이 나타남을 의미한다. 본 발명의 일실시예에 따르면, 재질별 플라스틱의 대전서열에서 PET와 ABS 사이에 있는 플라스틱이 PET입자와 ABS입자를 하전시키는 하전물질로 사용될 수 있다. The charged material used according to an embodiment of the present invention is determined by the charging sequence according to the material of the plastic established in the present invention, the charging sequence of the plastic according to the material according to the present invention is H-PVC, S-PVC, COPP , HOMO-PP, LDPE, HDPE, PET, RUBBER, HIPS, CALIBER, ABS, GPPS and PMMA. That is, in the H-PVC, S-PVC, COPP, HOMO-PP, LDPE, HDPE, PET, RUBBER, HIPS, CALIBER, ABS, GPPS, and PMMA, the negative polarity tends to increase toward the left, and to the right. This means that there is a tendency to become increasingly positive. According to one embodiment of the invention, the plastic between the PET and ABS in the charging sequence of the plastic by material can be used as a charged material to charge the PET particles and ABS particles.

이때, 본 발명의 일실시예에 따르면, PET입자와 ABS입자로 이루어지는 혼합입자가 하전물질에 의해 하전될 때, PET입자는 (-)극성으로 하전되고, ABS입자는 (+)극성으로 하전된다. At this time, according to one embodiment of the present invention, when the mixed particles consisting of PET particles and ABS particles are charged by the charged material, the PET particles are charged to the (-) polarity, the ABS particles are charged to the (+) polarity. .

하전물질에 의해 하전된 PET입자와 ABS입자는 전기장을 형성하는 음극판과 양극판 사이를 통과하는데, 이때, 본 발명의 일실시예에 따르면, (-)극성으로 하전된 PET입자는 양극판으로 이동하고, (+)극성으로 하전된 ABS입자는 음극판으로 이동하여 분리되며, 분리된 PET입자와 ABS입자는 각각을 포집하는 포집기에 포집된다.PET particles and ABS particles charged by the charged material pass between the negative electrode plate and the positive electrode plate to form an electric field, wherein, according to an embodiment of the present invention, the negatively-charged PET particles are moved to the positive electrode plate, The positively charged ABS particles move to the negative electrode plate and are separated, and the separated PET particles and ABS particles are collected in a collector for collecting each of them.

이때, 본 발명의 일실시예에 따르면, PET입자와 ABS입자로 이루어지는 혼합 입자는 공기의 이동에 의해 유동하여 하전물질과 마찰 또는 충돌하고, 음극판과 양극판 사이를 통과함이 바람직한데, 이때, 공기의 이동속도는 8.5m/s 내지 14m/s임이 바람직하다. 그 이유는 도 1에서 도시된 그래프에서 보이는 바와 같이, 공기의 이동속도가 8.5m/s 미만이 되거나, 14m/s를 초과하게 되면, PET입자의 품위 및 회수율이 각각 95% 및 90% 미만이 되기 때문이다. At this time, according to one embodiment of the present invention, the mixed particles consisting of PET particles and ABS particles flow by the movement of the air friction or collision with the charged material, it is preferable to pass between the negative electrode plate and the positive electrode plate, in this case, air The moving speed of is preferably 8.5m / s to 14m / s. The reason is that, as shown in the graph shown in Figure 1, when the air moving speed is less than 8.5m / s, or exceeds 14m / s, the quality and recovery rate of PET particles is less than 95% and 90%, respectively Because it becomes.

또한, 본 발명의 일실시예에 따르면, 음극판과 양극판에 가해지는 전압세기는 20kv 이상임이 바람직하다. 그 이유는 도 2에 도시된 바와 같이, 전압세기가 20kv 미만일 때는 PET입자의 품위 및 회수율이 95% 및 90%에 미치지 못하기 때문이다. 한편, 본 발명의 일실시예에 따르면, 전압세기는 20kv 내지 25kv로 설정함이 더욱 바람직한데, 그 이유는 전압세기가 25kv를 초과하여도 PET입자의 품위와 회수율은 거의 동일한 수치를 유지함으로 필요 이상의 전력소비를 방지할 수 있기 때문이다. In addition, according to an embodiment of the present invention, the voltage strength applied to the negative electrode plate and the positive electrode plate is preferably 20kv or more. This is because, as shown in Figure 2, when the voltage strength is less than 20kv, the quality and recovery of PET particles are less than 95% and 90%. On the other hand, according to one embodiment of the present invention, the voltage strength is more preferably set to 20kv to 25kv, because the quality and recovery rate of PET particles are required to maintain almost the same value even if the voltage strength exceeds 25kv. This is because abnormal power consumption can be prevented.

또한, 본 발명의 일실시예에 따르면, PET입자와 ABS입자로 이루어진 혼합입자를 PET입자와 ABS입자 각각으로 분리할 때, 상대습도는 40%이하임이 바람직하다. 그 이유는 도 3에 도시된 바와 같이, 상대습도가 40% 이하일 때, PET입자의 품위 및 회수율이 각각 95% 및 90%이상이 되기 때문이다. In addition, according to an embodiment of the present invention, when separating the mixed particles consisting of PET particles and ABS particles into PET particles and ABS particles, respectively, the relative humidity is preferably 40% or less. This is because, as shown in Figure 3, when the relative humidity is 40% or less, the quality and recovery of the PET particles becomes 95% and 90% or more, respectively.

본 발명의 일실시예에 따른 하전극성을 이용한 PET와 ABS의 분리방법은 PET입자와 ABS입자를 하전시킨 후, 음극판 및 양극판 사이에 자유낙하시켜 각각으로 분리하는 과정으로 이루어지기 때문에 방법의 실시가 용이하고, 신속하게 수행된다.Since the separation method of PET and ABS using the lower electrode according to an embodiment of the present invention is made of a process of freely falling between the negative electrode plate and the positive electrode plate after charging the PET particles and ABS particles, the method is separated. It is easy and quick.

본 발명은 이상에서 살펴본 바와 같이 바람직한 실시예를 들어 도시하고 설명하였으나, 상기한 실시 예에 한정되지 아니하며 본 발명의 정신을 벗어나지 않는 범위 내에서 당해 발명이 속하는 기술분야에서 통상의 지식을 가진 자에 의해 다양한 변경과 수정이 가능할 것이다.The present invention has been shown and described with reference to the preferred embodiments as described above, but is not limited to the above embodiments and those skilled in the art without departing from the spirit of the present invention. Various changes and modifications will be possible.

따라서, 본 발명에 따른 하전극성을 이용한 PET와 ABS의 분리방법은 하전 시 재질별 플라스틱의 대전서열에 따라 적합한 하전물질을 사용함으로써, 분리된 PET입자의 품위 및 회수율이 우수한 효과가 있다. Therefore, the separation method of PET and ABS using the lower electrode properties according to the present invention by using a suitable charging material according to the charging sequence of the plastic for each material at the time of charging, the quality and recovery rate of the separated PET particles has an excellent effect.

또한, 본 발명에 따른 하전극성을 이용한 PET와 ABS의 분리방법은 최적화된 공기속도, 전압세기 및 상대습도를 적용함으로써, 분리된 PET입자의 품위 및 회수율이 우수한 효과가 있다. In addition, the separation method of PET and ABS using the lower electrode according to the present invention has an excellent effect of the quality and recovery of the separated PET particles by applying the optimized air velocity, voltage strength and relative humidity.

또한, 본 발명에 따른 하전극성을 이용한 PET와 ABS의 분리방법은 분리과정이 신속하게 이루어지는 장점이 있다. In addition, the separation method of PET and ABS using the lower electrode according to the present invention has the advantage that the separation process is made quickly.

Claims (9)

PET와 ABS가 혼합된 혼합플라스틱으로부터 PET입자와 ABS입자를 각각으로 분리하는 방법에 있어서, In the method of separating the PET particles and ABS particles from the mixed plastic mixed with PET and ABS, PET입자와 ABS입자로 이루어진 혼합입자가 PET, RUBBER, HIPS, Calibre 및 ABS 중 어느 하나의 재질로 이루어진 하전물질과 마찰 또는 충돌에 의해 하전되는 단계; 및Mixed particles consisting of PET particles and ABS particles are charged by friction or collision with a charged material made of any one of PET, RUBBER, HIPS, Caliber, and ABS; And 상기 PET입자와 상기 ABS입자를 음극판과 양극판 사이에 통과시키되, 상기 PET입자는 양극판으로 이동하고, 상기 ABS입자는 음극판으로 이동하여 분리되는 단계Passing the PET particles and the ABS particles between the negative electrode plate and the positive electrode plate, wherein the PET particles are moved to the positive electrode plate, the ABS particles are moved to the negative electrode plate and separated 를 포함하는 하전극성을 이용한 PET와 ABS의 분리방법.Separation method of PET and ABS using a lower electrode comprising a. 제 1항에 있어서, The method of claim 1, 상기 혼합입자가 상기 하전물질과 마찰 또는 충돌에 의해 하전될 때, When the mixed particles are charged by friction or collision with the charged material, 상기 PET입자는 음극성으로 하전되고, 상기 ABS입자는 양극성으로 하전되는 하전극성을 이용한 PET와 ABS의 분리방법.The PET particles are negatively charged, the ABS particles are positively charged is a separation method of PET and ABS using the lower electrode. 제 2항에 있어서, The method of claim 2, 상기 혼합입자는 공기에 의해 이동하여,The mixed particles are moved by air, 상기 하전부와 마찰 또는 충돌하며, 상기 음극판과 상기 양극판 사이를 통과하는 하전극성을 이용한 PET와 ABS의 분리방법.Separating method of PET and ABS using the lower electrode properties that friction or collide with the charged portion, and passes between the negative electrode plate and the positive electrode plate. 제 3항에 있어서, The method of claim 3, wherein 상기 공기의 이동속도는 8.5m/s 내지 14m/s인 하전극성을 이용한 PET와 ABS의 분리방법.Separation method of PET and ABS using the lower electrode of the air movement speed is 8.5m / s to 14m / s. 제 4항에 있어서, The method of claim 4, wherein 상기 음극판과 상기 양극판에 가해지는 전압은 20kv이상인 하전극성을 이용한 PET와 ABS의 분리방법.Separating method of PET and ABS using a lower electrode having a voltage applied to the negative electrode plate and the positive electrode plate is 20kv or more. 제 5항에 있어서, The method of claim 5, 상대습도는 40%이하인 하전극성을 이용한 PET와 ABS의 분리방법.Separation method of PET and ABS using lower electrode with relative humidity less than 40%. 제 6항에 있어서, The method of claim 6, 분리된 상기 PET입자의 품위는 95%이상인 하전극성을 이용한 PET와 ABS의 분리방법.The quality of the separated PET particles is 95% or more separation method of PET and ABS using lower electrode properties. 제 7항에 있어서, The method of claim 7, wherein 분리된 상기 PET입자의 회수율은 90%이상인 하전극성을 이용한 PET와 ABS의 분리방법.Separation method of PET and ABS using a lower electrode having a recovery rate of the separated PET particles is more than 90%. 제 8항에 있어서, The method of claim 8, 상기 전압은 20kv 내지 25kv인 하전극성을 이용한 PET와 ABS의 분리방법.The voltage is a separation method of PET and ABS using a lower electrode of 20kv to 25kv.
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