KR20020018493A - A manufacturing process for a electrophoresis liquid - Google Patents

A manufacturing process for a electrophoresis liquid Download PDF

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KR20020018493A
KR20020018493A KR1020000051837A KR20000051837A KR20020018493A KR 20020018493 A KR20020018493 A KR 20020018493A KR 1020000051837 A KR1020000051837 A KR 1020000051837A KR 20000051837 A KR20000051837 A KR 20000051837A KR 20020018493 A KR20020018493 A KR 20020018493A
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solutes
solute
solvent
dispersion
mixing
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KR100368592B1 (en
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남중우
최귀석
이상진
조성희
차재철
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김순택
삼성에스디아이 주식회사
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    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D13/00—Electrophoretic coating characterised by the process
    • C25D13/02—Electrophoretic coating characterised by the process with inorganic material

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  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
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  • Organic Chemistry (AREA)
  • Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
  • Colloid Chemistry (AREA)

Abstract

PURPOSE: A manufacturing process of an electrophoresis liquid is provided to prevent solute particles from being coagulated each other by mixing the paste particles into glycerol or vehicle(hereinafter referred to as "dispersion solution") in advance before mixing solutes mixed into a solvent, paste particles, into the solvent. CONSTITUTION: The manufacturing process of an electrophoresis liquid comprises a mixing step(S10) of mixing solutes into a dispersion solution preventing coagulation of the solutes; a dispersing step(S20) of dispersing the solutes by passing the solutes mixed in the mixing step through a dispersion unit; and a dilution step(S30) of diluting the solutes passing through the dispersing step with a solvent, wherein the solutes are mixed with the solvent in a weight ratio of 0.1 to 50%, the solutes are selected from the group consisting of graphite, carbon nanotube or a mixture thereof, the dispersion solution comprises glycerol, a resin is contained in the dispersion solution in a weight ratio of 0.1 to 50%, and the resin is selected from ethyl cellulose, nitrocellulose, or acryl.

Description

전기영동액 제조방법{A manufacturing process for a electrophoresis liquid}A manufacturing process for a electrophoresis liquid

본 발명은 전기영동액 제조방법에 관한 것으로, 더욱 상세하게는 용매 속에 부유하는 용질 입자들이 서로 응집되는 것을 방지할 수 있도록 한 전기영동액 제조방법에 관한 것이다.The present invention relates to a method for producing an electrophoretic solution, and more particularly to a method for producing an electrophoretic solution to prevent the solute particles suspended in the solvent to agglomerate with each other.

일반적으로 전기영동법(electrophoresis)은 용매 중에 부유하고 있는 미립자 상태의 용질을 음극 또는 양극으로 대전하여 이들 대전된 용질이 서로 반대되는 전극으로 운반되도록 하는 것을 말하며 주로 의료용이나 전자부품의 막을 제조하는데 사용되는 방법이다.In general, electrophoresis refers to charging particulate solutes suspended in a solvent to a cathode or an anode so that these charged solutes are transported to electrodes opposite to each other, and are mainly used for manufacturing a film of a medical or electronic component. It is a way.

이러한 전기영동법에 사용되는 종래의 전기영동액의 제조는 기판에 막을 형성하는 흑연 등으로 된 용질을 직접 용매에 혼합함으로써 이루어진다.The production of a conventional electrophoretic liquid used in such an electrophoretic method is accomplished by mixing a solute made of graphite or the like which forms a film on a substrate directly with a solvent.

그리고 이와 같이 제조된 전기영동액을 사용하여 전자부품에 막을 형성할 때에는 전자기판을 전기영동액에 함침한 후 이 전자기판의 막 형성부위에 전극을 가하게 되면 극성화 된 용질은 기판의 극성으로 이동하여 기판 위에 전착(electrodeposition)되게 된다.When forming a film on an electronic component using the electrophoretic solution prepared as described above, when the electromagnetic plate is impregnated with the electrophoretic solution and an electrode is applied to the film forming portion of the electromagnetic plate, the polarized solute moves to the polarity of the substrate. This results in electrodeposition on the substrate.

그런데 종래 전기영동액에 희석된 흑연 등의 용질은 입자가 곱고 가벼우며 응집이 잘 일어나는 특성을 가지고 있기 때문에 분산성이 나쁘다. 따라서 용매에 이러한 용질이 혼합되면 용질 입자가 균일하게 분산되지 않고 일부가 응집되게 되고, 이러한 응집된 상태로 전착이 수행되면 직경이 커진 용질 입자들이 제대로 막 형성부분에 균일하게 전착되지 않는 문제점이 발생하게 된다.By the way, solutes such as graphite diluted in the conventional electrophoretic solution are poor in dispersibility because the particles are fine and light and have the property of aggregation. Therefore, when such a solute is mixed in a solvent, solute particles are not uniformly dispersed and some are aggregated. If electrodeposition is performed in such an aggregated state, a problem arises that the solute particles having a larger diameter are not uniformly electrodeposited on the membrane formation part. Done.

본 발명은 전술한 문제점을 해결하기 위한 것으로, 본 발명의 목적은 용매에 혼합되는 용질인 페이스트 입자를 용매에 혼합하기 전에 미리 글리세롤 또는 비이클(vehicle, 이하 "분산액"이라고 한다.)에 혼합하여 용질 입자들이 서로 응집되는 것을 방지할 수 있도록 한 전기영동액 제조방법을 제공하기 위한 것이다.SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and an object of the present invention is to mix solutes in a glycerol or vehicle (hereinafter, referred to as "dispersion liquid") before mixing paste particles, which are solutes mixed with a solvent, into a solvent. An object of the present invention is to provide an electrophoretic solution manufacturing method for preventing particles from agglomerating with each other.

도 1은 본 발명에 따른 전기영동액 제조공정을 도시한 블록 공정도이다.1 is a block process diagram showing the electrophoretic solution manufacturing process according to the present invention.

**도면의 주요부분에 대한 부호의 설명**** Description of the symbols for the main parts of the drawings **

S10...혼합단계S10 ... Mixing Step

S20...분산단계S20 ... dispersion stage

S30...희석단계S30 ... dilution stage

전술한 목적을 달성하기 위한 본 발명의 전기영동액 제조방법은 용질들의 응집을 방지하도록 하는 분산액에 상기 용질을 혼합시켜 혼합단계, 상기 혼합단계에서 혼합된 상기 용질을 분산기로 통과시켜서 분산시키는 분산단계, 상기 분산단계를 거친 상기 용질을 용매와 희석시키는 희석단계로 구성된다.The electrophoretic solution preparation method of the present invention for achieving the above object is a dispersion step of mixing the solute in a dispersion to prevent aggregation of solutes, mixing, dispersing the solute mixed in the mixing step by passing through a disperser And a dilution step of diluting the solute that has undergone the dispersion step with a solvent.

그리고 상기 용질은 상기 용매와의 혼합된 상태에서 0.1 - 50%의 질량비로 마련되고, 또한 상기 용질은 흑연 또는 카본나노튜브 중의 하나를 선택적으로 포함할 수 있고, 또는 상기 흑연과 상기 카본나노튜브를 함께 포함할 수 있다.And the solute is provided in a mass ratio of 0.1 to 50% in the mixed state with the solvent, and the solute may optionally include one of graphite or carbon nanotubes, or the graphite and the carbon nanotubes It can be included together.

또한, 상기 분산액은 글리세롤을 포함할 수 있다.In addition, the dispersion may include glycerol.

한편, 상기 분산액은 바람직하게 수지를 0.1 - 50% 질량비로 포함할 수 있고, 상기 수지는 에틸 셀룰로오스, 니트로 셀룰로오스, 아크릴 중의 하나가 선택적으로 포함된 것을 특징으로 한다.On the other hand, the dispersion may preferably contain a resin in a 0.1-50% mass ratio, the resin is characterized in that one of the ethyl cellulose, nitro cellulose, acrylic is optionally included.

이하에서는 본 발명에 따른 하나의 바람직한 실시예를 도면을 참조하여 보다 상세히 설명하기로 한다.Hereinafter, one preferred embodiment according to the present invention will be described in detail with reference to the drawings.

본 발명에 따른 전기영동액은 용매와 이 용매 내부에 희석된 용질로 이루어지며, 용질은 용매와의 혼합 전에 분산액에 의하여 분산된 상태이다.The electrophoretic solution according to the present invention consists of a solvent and a solute diluted in the solvent, and the solute is dispersed by the dispersion before mixing with the solvent.

이러한 본 발명의 전기영동액의 제조방법은 도 1에 도시된 바와 같이 혼합단계(S10), 분산단계(S20) 그리고 희석단계(S30)로 구현된다.Such a method for producing an electrophoretic solution of the present invention is implemented as a mixing step (S10), dispersion step (S20) and dilution step (S30) as shown in FIG.

먼저 혼합단계(S10)는 분산액에 흑연(graphite) 또는 카본 나노튜브(carbon nanotube)가 별도로 포함되거나 함께 포함된 용질과 페이스트 제조에 통상적으로 사용되는 분산액이나 글리세롤을 서로 선택적으로 혼합시켜 용질에 분산액이 적셔지도록 하는 단계이다.First, the mixing step (S10) is to selectively mix the dispersion or glycerol commonly used in the preparation of the solute and graphite or carbon nanotubes (graphite) or carbon nanotubes included in the dispersion and the paste to the dispersion in the solute Soak it.

이때의 용질은 미리 페이스트화된 것으로써, 이 페이스트화 된 용질 중의 흑연 또는 카본 나노튜브의 분말 질량비는 혼합액에서 0.1% - 50%의 비율로 포함되는것이 바람직하다.The solute at this time is pre-pasted, and it is preferable that the powder mass ratio of graphite or carbon nanotubes in the pasted solute is included in the ratio of 0.1% -50% in the mixed solution.

그리고 분산액에는 수지가 포함되어 있는데, 이 수지는 에틸 셀룰로오스, 니트로 셀룰로오스 또는 아크릴로 마련되며, 분산액에서 이들의 질량비는 대략 0.1%- 50%로 구현되는 것이 바람직하다.And the dispersion contains a resin, which is made of ethyl cellulose, nitro cellulose or acrylic, the mass ratio of the dispersion in the dispersion is preferably implemented in approximately 0.1% -50%.

다음으로 이러한 혼합단계(S10)를 거친 후 분산단계(S20)를 거치게 된다.Next, after the mixing step (S10) is passed through a dispersion step (S20).

이 분산단계(S20)는 용질과 분산액이 서로 혼합된 상태에서 이들을 통상적인 3-roll mill 등으로 된 분산기를 통과시킴으로서 분산시키는 단계이다. 이때의 분산된 용질은 통상적인 페이스트와 비슷한 점도와 물성을 가진다.This dispersing step (S20) is a step of dispersing them by passing them through a conventional 3-roll mill or the like in a state where the solute and the dispersion are mixed with each other. At this time, the dispersed solute has a viscosity and physical properties similar to those of a conventional paste.

계속해서 분산단계(S20)를 거치게 되면 용매와 희석되는 희석단계(S30)를 거치는데. 이 희석단계(S30)는 페이스트화 된 용질과 그 외의 다른 첨가물들이 용매에 첨가된 후 희석됨으로써 전기영동액의 제조가 이루어지는 것이다.If you go through the dispersion step (S20) to go through the dilution step (S30) to be diluted with the solvent. In this dilution step (S30), the pasteurized solute and other additives are added to the solvent and then diluted to make the electrophoretic solution.

이상과 같은 방법으로 제조된 본 발명의 전기영동액은 별도의 분산액으로 용질을 미리 적셔주는 공정이 포함되어 있으므로 용질이 용매에 혼합되었을 때 종래의 직접 혼합보다 그 분산성이 향상되게 된다.The electrophoretic solution of the present invention prepared by the above method includes a step of pre-soaking the solute as a separate dispersion, so that the dispersibility is improved when compared with the conventional direct mixing when the solute is mixed with the solvent.

즉, 용질과 분산액을 혼합하여 페이스트화 하면 분말화된 용질의 표면에 분산 물질이 용질을 둘러싸고 있기 때문에 용질이 용매에 포함되었을 때 용질들이 서로 응집되는 것을 방지하게 된다.That is, when the solute and the dispersion are mixed and pasted, the dispersing material surrounds the solute on the surface of the powdered solute to prevent the solutes from agglomerating with each other when the solute is included in the solvent.

따라서 본 발명과 같은 상태의 용질이 포함된 전기영동액으로 막부품을 만드는 전착공정에 사용하게 되면 막의 전착부분에 최초 페이스트화 된 상태의 균일한 입자크기를 가진 용질이 전착되게 되어 막의 전착이 보다 균일하고 안정되게 이루어지게 된다.Therefore, when used in the electrodeposition process for making a membrane component with an electrophoretic solution containing a solute in the same state as the present invention, the solute having a uniform particle size in the pasted state is first electrodeposited on the electrodeposition portion of the membrane so that the electrodeposition of the membrane is more effective. It is made to be uniform and stable.

이러한 본 발명에 따른 전기영동액 제조방법은 전기영동액을 구성하는 용질을 미리 분산물질에 적신 후 용매에 용질을 희석시켜서 용질들의 응집이 일어나는 것을 방지하기 위한 것이다.The electrophoretic solution preparation method according to the present invention is to prevent aggregation of the solutes by diluting the solute in a solvent after soaking the solute constituting the electrophoretic solution in advance.

그러므로 다른 상태와 공정으로 전기영동액을 제조하는 다른 실시예가 제공될 수 있는데. 이 다른 실시예가 기본적으로 용질들의 응집을 방지하기 위한 분산공정을 포함하고 있다면 이들은 모두 본 발명의 기술적 범주에 포함된다고 보아야 한다.Thus, other embodiments may be provided for preparing electrophoretic solutions in different states and processes. If this other embodiment basically includes a dispersion process to prevent aggregation of solutes, they should all be considered to be included in the technical scope of the present invention.

이상과 같은 본 발명에 따른 전기영동액 제조방법은 전기영동액에 포함되는 용질의 응집을 방지하기 위하여 분산액에 용질을 미리 적셔주는 분산공정이 포함되어 있기 때문에 용매와 희석된 용질들이 서로 응집하게 되는 것이 방지되어 막을 형성하는 전착공정시 막의 전착부분에 용질들이 균일하고 안정되게 전착되도록 하는 효과가 있다.The electrophoretic solution manufacturing method according to the present invention as described above includes a dispersion step of pre-soaking the solute in the dispersion in order to prevent aggregation of the solute contained in the electrophoretic solution, so that the solvent and the dilute solutes aggregate with each other. It is prevented to have an effect that the solutes are uniformly and stably deposited on the electrodeposition portion of the membrane during the electrodeposition process to form the membrane.

Claims (6)

용질들의 응집을 방지하도록 하는 분산액에 상기 용질을 혼합시켜 혼합단계,Mixing the solute in a dispersion to prevent aggregation of solutes, 상기 혼합단계에서 혼합된 상기 용질을 분산기로 통과시켜서 분산시키는 분산단계,A dispersion step of dispersing the solute mixed in the mixing step by passing through a disperser; 상기 분산단계를 거친 상기 용질을 용매와 희석시키는 희석단계로 된 것을 특징으로 하는 전기영동액 제조방법.Electrolytic solution production method characterized in that the dilution step of diluting the solute after the dispersion step with a solvent. 제 1항에 있어서, 상기 용질은 상기 용매와 0.1 - 50%의 질량비로 혼합된 것을 특징으로 하는 전기영동액 제조방법.The method of claim 1, wherein the solute is mixed with the solvent in a mass ratio of 0.1-50%. 제 1항 내지는 제 2항 중의 어느 한 항에 있어서, 상기 용질은 흑연 또는 카본나노튜브 중의 하나를 선택적으로 포함할 수 있고, 또는 상기 흑연과 상기 카본나노튜브를 함께 포함할 수 있는 것을 특징으로 하는 전기영동액 제조방법.The method of claim 1, wherein the solute may optionally include one of graphite and carbon nanotubes, or may include both graphite and the carbon nanotubes. Electrophoretic Preparation Method. 제 1항 내지는 제 2한 중의 어느 한 항에 있어서, 상기 분산액은 글리세롤을 포함하는 것을 특징으로 하는 전기영동액 제조방법.The method according to any one of claims 1 to 2, wherein the dispersion comprises glycerol. 제 1항, 제 2항 또는 제 4항 중의 어느 한 항에 있어서, 상기 분산액은 수지를 0.1 - 50% 질량비로 포함한 것을 특징으로 하는 전기영동액 제조방법.5. The method of claim 1, 2 or 4, wherein the dispersion comprises a resin in an amount of 0.1-50% by mass. 제 5항에 있어서, 상기 수지는 에틸 셀룰로오스, 니트로 셀룰로오스, 아크릴 중의 하나가 선택적으로 포함된 것을 특징으로 하는 전기영동액 제조방법.6. The method of claim 5, wherein the resin is one of ethyl cellulose, nitro cellulose, and acryl.
KR10-2000-0051837A 2000-09-02 2000-09-02 A manufacturing process for a electrophoresis liquid KR100368592B1 (en)

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