JPS6227077A - Formation of solid monomolecular film - Google Patents
Formation of solid monomolecular filmInfo
- Publication number
- JPS6227077A JPS6227077A JP16666385A JP16666385A JPS6227077A JP S6227077 A JPS6227077 A JP S6227077A JP 16666385 A JP16666385 A JP 16666385A JP 16666385 A JP16666385 A JP 16666385A JP S6227077 A JPS6227077 A JP S6227077A
- Authority
- JP
- Japan
- Prior art keywords
- monomolecular
- solid
- layer
- monomolecular layer
- film
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Application Of Or Painting With Fluid Materials (AREA)
- Laminated Bodies (AREA)
- Magnetic Record Carriers (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分計〕
本発明はウェブ状基体上又はウェブ状基体に設けられた
層上に両親媒性分子の単分子膜を連続的に形成する方法
に関する。特に固体状単分子膜形成方法に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application] The present invention relates to a method for continuously forming a monomolecular film of amphipathic molecules on a web-like substrate or on a layer provided on a web-like substrate. In particular, it relates to a method for forming a solid monolayer.
従来、ガラス、金属材料、金属蒸着膜、等の基体上に有
機化合物の薄膜を形成することが種々性われており、そ
の1つとして両親媒性分子の単分子層を設ける方法が例
えばラングミュア−プロプエツト、1フイジカルレピs
−−” (Langmuir−Blodgett 、’
Physical Review″)51,664(
1937)によって提案されている。この方法は両親媒
性分子である胞和島゛肪はをベンゼン等の揮発性溶媒に
溶解した溶液を水面上に静かに滴下すると、溶媒が揮発
したあとに単分子層が残される。Conventionally, various methods have been used to form thin films of organic compounds on substrates such as glass, metal materials, and metal vapor deposited films. Prop, 1 physical rep
--” (Langmuir-Blodgett,'
Physical Review'') 51,664 (
1937). In this method, a solution of the amphipathic molecule, sulfuric acid, dissolved in a volatile solvent such as benzene, is gently dropped onto the water surface, and a monomolecular layer is left behind after the solvent evaporates.
このようにして形成された単分子層を圧縮して所定の表
面圧にした後に、ガラス基板を水中に浸漬して引上げる
とガラス表面に固体状単分子膜が形成される。この93
gガラス基板を引き上げると第6図に示すように単分子
膜の水に面している親水基が基板側に付き、疎水基(又
は親油基)が表面に並ぶ単分子膜構成となる(A形膜と
称する)。After compressing the monomolecular layer thus formed to a predetermined surface pressure, the glass substrate is immersed in water and pulled up to form a solid monomolecular film on the glass surface. This 93
g When the glass substrate is pulled up, as shown in Figure 6, the hydrophilic groups facing water in the monomolecular film are attached to the substrate side, forming a monomolecular film with hydrophobic groups (or lipophilic groups) lined up on the surface ( (referred to as A-type membrane).
またガラス基板を浸漬すると第4図のように疎水基(又
は親油基)が基板側に付き親水基が表面に並ぶ単分子膜
構成となる(B形膜と称する)。Further, when a glass substrate is immersed, a monomolecular film structure is formed in which the hydrophobic groups (or lipophilic groups) are attached to the substrate side and the hydrophilic groups are arranged on the surface as shown in FIG. 4 (referred to as a B-type film).
(「薄膜ハンPブック」、268〜269頁、日本学術
振興金線、昭和58年12月、■オーム社発行)。("Thin Film Han P Book", pp. 268-269, Japan Science Promotion Gold Line, December 1981, ■Published by Ohmsha).
このような方法による固体状単分子膜が最近エレクトロ
ニクス等の分野において絶縁層等に利用されるようにな
り、種々の改良が提案されている(例えば、特開昭52
−98038号公報)。Solid monomolecular films produced by such methods have recently come to be used as insulating layers in fields such as electronics, and various improvements have been proposed (for example,
-98038).
また、本出願人は、先に蒸着又は電解メッキ等によって
支持体上に強磁性合金薄膜を形成した磁気記録媒体にこ
の方法を利用して飽和脂肪酸またはその金属塩の単分子
膜を保護層として設けることを提案した←特開昭56−
30609号公@)。The applicant has also applied this method to a magnetic recording medium in which a thin ferromagnetic alloy film has been formed on a support by vapor deposition or electrolytic plating, etc., to apply a monomolecular film of saturated fatty acid or its metal salt as a protective layer. ←Unexamined Japanese Patent Publication 1983-
Publication No. 30609@).
これらの改良方法においては、例えば第2図に示すよう
に、タンク1の下層液(水層)2の表面にベンゼン、ク
ロロホルム等の揮発性溶媒に溶解したステアリン酸、・
セルミチン酸の如き飽和脂肪酸の溶液を滴下して水面上
に飽和脂肪酸の単分子層4を形成させ、水面下に一部が
浸漬しているシリンダー5等の適当な圧縮手段によって
単分子層4を圧縮して固体状単分子膜(凝集膜)6とな
し、水中に設けられたガイドローラ7によって案内され
る基体8の表面に単分子膜の保護層9が形成される。こ
の場合、第6因、第4図に示すように基体の引き上げ時
に単分子膜を形成すれば人形膜引き込み時にはB形膜が
形成される。基体に付着してはこび出される分の単分子
層は、ノズル6から脂肪酸溶液を供給することによって
補給される。In these improved methods, for example, as shown in FIG. 2, stearic acid dissolved in a volatile solvent such as benzene or chloroform, etc.
A solution of a saturated fatty acid such as cermitic acid is dropped to form a monomolecular layer 4 of saturated fatty acid on the water surface, and the monomolecular layer 4 is formed by suitable compression means such as a cylinder 5 partially immersed below the water surface. It is compressed to form a solid monomolecular film (agglomerated film) 6, and a protective layer 9 of the monomolecular film is formed on the surface of the substrate 8 guided by guide rollers 7 provided in water. In this case, as shown in the sixth factor, FIG. 4, if a monomolecular film is formed when the substrate is pulled up, a B-shaped film will be formed when the doll membrane is pulled in. The monomolecular layer that adheres to the substrate and spills out is replenished by supplying fatty acid solution from the nozzle 6.
これまで開示された方式においては、下層液(水相)上
に形成される両親媒性分子の単分子層に表面圧を印加し
て固体状単分子膜を形成する方法としては例えば、前記
特公昭56−30609号公報に例示された方式におい
ては、液面上に存在するバリアーをノ々ネによって押圧
することによって液面上の単分子層に表面圧を加え、ま
た%開昭52−98038号公報には、一部が液面上、
一部が液面下にある水平に設けられたシリンダを回転さ
せることKより、液面上に形成された単分子層を液面上
のシリンダー上に乗せて塗布域に送り、これにより単分
子膜に表面圧を加え固体状単分子膜を形成させる方式が
開示されている。In the methods disclosed so far, the method of forming a solid monolayer by applying surface pressure to a monomolecular layer of amphiphilic molecules formed on a lower liquid (aqueous phase) includes, for example, the above-mentioned specific method. In the method exemplified in Japanese Publication No. 56-30609, surface pressure is applied to the monomolecular layer on the liquid surface by pressing the barrier existing on the liquid surface with a nonone, and In the publication, some parts are above the liquid level,
By rotating a cylinder installed horizontally, a part of which is below the liquid surface, the monomolecular layer formed on the liquid surface is placed on the cylinder above the liquid surface and sent to the application area. A method is disclosed in which a solid monomolecular film is formed by applying surface pressure to the film.
しかるにこれらの方式においては、いづれも加圧部材が
液面上にあるため、液面に波紋を起こして単分子層や固
体単分子膜に乱れを生じないように細心の注意を佛わな
ければならないことや、該加圧部材が単分子膜に接する
機会が多いので、時によっては両親媒性分子の着脱にむ
らを生じ、円滑な単分子層の塗布域への移行を妨げるこ
と等があり、該加圧部材の材料の選定と運転及び保守上
の考慮が必要であった。本発明の目的は前記欠点を解消
し、運転、保守上安定した条件の得られる固体状単分子
膜形成方法を提供することにある。However, in all of these methods, the pressure member is above the liquid surface, so great care must be taken to avoid causing ripples on the liquid surface and disturbing the monomolecular layer or solid monomolecular film. Since the pressure member often comes into contact with the monomolecular film, sometimes the amphiphilic molecules may be attached and detached unevenly, preventing smooth transfer of the monomolecular layer to the coating area. , it was necessary to consider the selection of the material of the pressure member and its operation and maintenance. An object of the present invention is to provide a method for forming a solid monolayer film which eliminates the above-mentioned drawbacks and provides stable conditions for operation and maintenance.
本発明者らは種々検討を重ねた結果、上記目的に空気流
を利用することによって達成できることを見出し、本発
明を得ることができた。As a result of various studies, the inventors of the present invention discovered that the above purpose could be achieved by utilizing air flow, and were able to obtain the present invention.
すなわち、本発明は液面上に両親媒性分子の揮発性溶媒
溶液を導入して単分子層を形成し、該溶媒を除去すると
共に該単分子層を圧縮して、固体状単分子膜を形成する
方法において、単分子層の表面圧の印加を液面に近接し
て単分子層域から固体状単分子膜域に向って液面上に空
気流を発生せしめることによって行うことを特徴とする
固体状単分子膜形成方法である。That is, the present invention introduces a volatile solvent solution of amphiphilic molecules onto the liquid surface to form a monomolecular layer, and removes the solvent and compresses the monomolecular layer to form a solid monomolecular film. The method for forming the monomolecular layer is characterized by applying surface pressure to the monomolecular layer by generating an air flow on the liquid surface from the monomolecular layer region toward the solid monomolecular film region in close proximity to the liquid surface. This is a method for forming a solid monolayer.
本発明として、両親媒性分子としては、保護層として用
いる場合は、トリデカン酸、ミリスチン酸、ペンタデカ
ン酸、パルミチン酸、マルガリン酸、ステアリン酸、ノ
ナデカン酸、アラキン酸等の炭素数16〜21の直鎖型
脂肪酸又はこれらのLi。In the present invention, when used as a protective layer, amphiphilic molecules such as tridecanoic acid, myristic acid, pentadecanoic acid, palmitic acid, margaric acid, stearic acid, nonadecanoic acid, arachidic acid, etc. Chain type fatty acids or these Li.
Na 、 K 、 Mg 、 Ca 、 Ba等の塩が
用イラレル。Salts such as Na, K, Mg, Ca, Ba, etc. are used.
揮発性溶媒としては、ヘキサン、クロロホルム、ベンゼ
ン等が用いられる。As the volatile solvent, hexane, chloroform, benzene, etc. are used.
下層液としては一般には純水または無機塩等の水溶液が
用いられる。よく用いられる下層液は、Cax+、 Q
d”、 Ba”p Mg2+等の二価の金属イオンを含
み、塩酸、炭酸水素ナトリウムを加えてPHを調整した
ものである。Generally, pure water or an aqueous solution of an inorganic salt is used as the lower layer liquid. Commonly used lower liquids are Cax+, Q
d'', Ba''p Contains divalent metal ions such as Mg2+, and its pH is adjusted by adding hydrochloric acid and sodium hydrogen carbonate.
又、液面に近接して単分子層域から固体状単分子膜域に
向って液面上に空気流を発生せしめる方法としては、単
に空気を吹出させる方法だけでなく、固体状単分子膜域
に排気口を設定し、その吸込口面を単分子層域に開口す
る方法も含むものである。重要なことは風速の選定であ
り、液面に波を立てない対策と調整が必要である。In addition, as a method for generating an air flow on the liquid surface from the monomolecular layer region to the solid monomolecular film region near the liquid surface, there are not only methods for simply blowing air, but also This also includes a method in which an exhaust port is set in the monomolecular layer region and the inlet surface thereof is opened into the monomolecular layer region. The important thing is the selection of wind speed, and measures and adjustments must be made to prevent waves from forming on the liquid surface.
本発明による空気流は、単分子層を圧縮して固体状単分
子膜を形成するのに有効であるばかりでな(、揮発性溶
媒溶液の除去促進にも有効な働をなす。又排気口による
吸引力も空気吹出ノズル同様有効な働をなす。The air flow according to the present invention is not only effective in compressing the monolayer to form a solid monolayer (but also in promoting the removal of volatile solvent solutions). The suction force produced by the air blowing nozzle also works as effectively as the air blowing nozzle.
以下本発明を蒸着型磁気記録媒体に保護層を設ける場合
について説明するが、本発明は、これのみに限られず、
エレクトロニクスその他の分野における単分子膜の形成
に応用できることは勿論である。The present invention will be described below with reference to a case in which a protective layer is provided on a vapor-deposited magnetic recording medium, but the present invention is not limited to this.
Of course, it can be applied to the formation of monomolecular films in electronics and other fields.
第1図は本発明の一実施例である、下層液槽1の中に満
した下層液2の液面上にノズル6より4ンゼン100c
cあたり0.0059のパルミチン酸を溶解した溶液を
滴下し、単分子層4を形成させた。FIG. 1 shows an embodiment of the present invention, in which four jets 100c are ejected from a nozzle 6 onto the surface of the lower liquid 2 filled in the lower liquid tank 1.
A solution containing 0.0059 palmitic acid per c was dropped to form a monomolecular layer 4.
単分子層4は空気吹出ノズル10から吹出される微風を
、槽の巾方向(塗布装置の巾方向と同じ)にわたって均
一に、単分子層域より固体状単分子膜域の方向に受ける
ことにより溶媒の蒸発を促進しながら圧縮されて行く。The monomolecular layer 4 is formed by receiving the breeze blown from the air blowing nozzle 10 uniformly across the width direction of the tank (same as the width direction of the coating device), from the monomolecular layer region to the solid monomolecular film region. It is compressed while promoting the evaporation of the solvent.
尚溶媒の蒸発促進に加熱ランプも併用した。そして、単
分子層域と固体状単分子膜域との境界近くに排気口11
を設定し、空気吹出ノズルからの空気と溶媒ガスを吸引
する様にした。排気口11の吸引力が働くためか、単分
子層はこの場所の近辺で相互に凝集し固体状単分子膜6
が形成された。さらに下層液槽の終端においてビードコ
ート塗布装置16によって磁気記録媒体であるウェッブ
状基体8上に固体状単分子膜6を保護膜9として塗布し
た。この時の磁気記録媒体であるウェッジ状基体8は下
記の如きものであった。即ち、真空蒸着装置に25μm
厚50cm巾のポリエチレンテレフタレートフィルムを
設置し0075重量%、Ni25重量%の組成のものを
蒸発源フィラメントより真空度5.0 + 10”’
Torr中で該フィルム上に0.3μmの厚さとなるよ
うに蒸着せしめたものである。A heating lamp was also used to promote evaporation of the solvent. Then, an exhaust port 11 is provided near the boundary between the monomolecular layer region and the solid monomolecular film region.
was set to suck air and solvent gas from the air blowing nozzle. Perhaps due to the suction force of the exhaust port 11, the monomolecular layers aggregate together near this location, forming a solid monomolecular film 6.
was formed. Further, at the end of the lower liquid tank, a solid monomolecular film 6 was applied as a protective film 9 onto a web-like substrate 8, which was a magnetic recording medium, using a bead coat application device 16. The wedge-shaped substrate 8, which was the magnetic recording medium at this time, was as follows. That is, the vacuum evaporation equipment has a thickness of 25 μm.
A polyethylene terephthalate film with a width of 50 cm and a composition of 0075% by weight and 25% by weight of Ni was placed under a vacuum of 5.0 + 10'' from an evaporation source filament.
It was deposited on the film in Torr to a thickness of 0.3 μm.
本発明により単分子層の圧縮には空気流の作用を利用し
たので従来の如き加圧部材は必要なくなり、それが為の
不安定要素が取除かれ、運転、保守条件の安定を得るこ
とが出来た。又空気流による溶媒の除去も付随的に促進
された事により固体状単分子膜の保護膜としての品質も
向上した。According to the present invention, since the action of air flow is used to compress the monomolecular layer, there is no need for a pressurizing member as in the past, and the unstable element caused by this is removed, making it possible to stabilize operation and maintenance conditions. done. In addition, the quality of the solid monomolecular film as a protective film was also improved because the removal of the solvent by the air flow was also promoted.
第1図は本発明の一実施例を示す説明図。第2図は従来
の方法の一実施例を示す説明図。第6図、第4図は単分
子膜形成の原理を示す説明図である。
1・・・・・下層液槽、2・・・・・・下層液、6・・
・・・・ノズル、4・・・単分子層、5・・・・・・シ
リンダー、6・・・・・固体状単分子膜、7・・・・・
・回転ロール、8・・・・・・基体(磁気記録媒体)、
9・・・・・・保護膜、10・・・・・空気吹出ノズル
、11・・・・・・排気口、12・−・・・・加熱ラン
プ、16・・・・・・塗布装置。
I″FIG. 1 is an explanatory diagram showing one embodiment of the present invention. FIG. 2 is an explanatory diagram showing an example of a conventional method. FIG. 6 and FIG. 4 are explanatory diagrams showing the principle of monomolecular film formation. 1... Lower layer liquid tank, 2... Lower layer liquid, 6...
... Nozzle, 4 ... Monomolecular layer, 5 ... Cylinder, 6 ... Solid monomolecular film, 7 ...
・Rotating roll, 8...substrate (magnetic recording medium),
9... Protective film, 10... Air blowing nozzle, 11... Exhaust port, 12... Heat lamp, 16... Coating device. I''
Claims (1)
子層を形成し、該溶媒を除去すると共に該単分子層を圧
縮して、固体状単分子膜を形成する方法において、単分
子層の表面圧の印加を液面に近接して単分子層域から固
体状単分子膜域に向つて液面上に空気流を発生せしめる
ことによつて行うことを特徴とする固体単分子膜形成方
法。A method of forming a monomolecular layer by introducing a volatile solvent solution of amphiphilic molecules onto a liquid surface, removing the solvent and compressing the monomolecular layer to form a solid monomolecular film, A solid monolayer characterized in that the surface pressure of the monomolecular layer is applied by generating an air flow on the liquid surface from the monomolecular layer region toward the solid monomolecular film region close to the liquid surface. Molecular film formation method.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16666385A JPS6227077A (en) | 1985-07-30 | 1985-07-30 | Formation of solid monomolecular film |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16666385A JPS6227077A (en) | 1985-07-30 | 1985-07-30 | Formation of solid monomolecular film |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6227077A true JPS6227077A (en) | 1987-02-05 |
Family
ID=15835424
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16666385A Pending JPS6227077A (en) | 1985-07-30 | 1985-07-30 | Formation of solid monomolecular film |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6227077A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63171671A (en) * | 1986-09-24 | 1988-07-15 | エクソン リサーチ アンド エンヂニアリング コムパニー | Manufacture of large area-two-dimensional arranged article of tightly packaged colloidal particle |
-
1985
- 1985-07-30 JP JP16666385A patent/JPS6227077A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63171671A (en) * | 1986-09-24 | 1988-07-15 | エクソン リサーチ アンド エンヂニアリング コムパニー | Manufacture of large area-two-dimensional arranged article of tightly packaged colloidal particle |
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