JPH07197017A - Solid with water-repellent surface and method for forming the same - Google Patents
Solid with water-repellent surface and method for forming the sameInfo
- Publication number
- JPH07197017A JPH07197017A JP33642493A JP33642493A JPH07197017A JP H07197017 A JPH07197017 A JP H07197017A JP 33642493 A JP33642493 A JP 33642493A JP 33642493 A JP33642493 A JP 33642493A JP H07197017 A JPH07197017 A JP H07197017A
- Authority
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- Prior art keywords
- water
- solid
- concavo
- sample
- period
- 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.)
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- Materials Applied To Surfaces To Minimize Adherence Of Mist Or Water (AREA)
- Electroplating Methods And Accessories (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、撥水性が要求される製
品の表面加工に利用する。例えば、傘、雨合羽、防水性
ビニールバッグなどの雨具、テーブル、盆、流し台など
の台所用品、おむつ、ナプキンなどの衛生品を覆うプラ
スチックフィルム、車用ワックス、道路標識などの掲示
板、農業用フィルム、光または磁気ディスク、携帯用オ
ーディオ・ビデオ機器などに利用するに適する。本発明
は、撥水表面を有する固体およびその生成方法に関す
る。FIELD OF THE INVENTION The present invention is used for surface treatment of products requiring water repellency. For example, umbrellas, raincoats, rain gear such as waterproof vinyl bags, kitchen utensils such as tables, trays, sinks, diapers, plastic films covering sanitary goods such as napkins, car wax, bulletin boards such as road signs, agricultural films, Suitable for use on optical or magnetic disks, portable audio / video equipment, etc. The present invention relates to a solid having a water repellent surface and a method for producing the same.
【０００２】[0002]
【従来の技術】従来、フッ素樹脂やシリコン樹脂などに
よって固体表面をコーティングするなど化学的処理によ
り撥水性を付与していた。それを効率的に行った具体例
として、特開平４−２８５１９９号公報に開示されてい
るポリテトラフルオロエチレンオリゴマー粒子を共析分
散した複合めっき皮膜を金属表面に形成する方法があ
る。2. Description of the Related Art Conventionally, water repellency has been imparted by chemical treatment such as coating a solid surface with a fluororesin or a silicone resin. As a specific example of efficiently performing this, there is a method disclosed in JP-A-4-285199 in which a composite plating film in which polytetrafluoroethylene oligomer particles are co-deposited and dispersed is formed on a metal surface.
【０００３】固体表面を凹凸化するといった構造的処理
によって表面の撥水性が変化することは、たとえばＡ．
Ｗ．Ａdamsonの著書「Physical Chemistry of Surfaces
(John Wiley & Sons,New York )」などに記述があり、
その応用例として、特開平４−３４３７６４号公報に開
示されている布地表面にフッ素系化合物の凸状体を付加
する方法がある。The change in the water repellency of the surface due to the structural treatment such as roughening the surface of the solid is described in, for example, A.
W. Adamson's book "Physical Chemistry of Surfaces"
(John Wiley & Sons, New York) ", etc.,
As an application example thereof, there is a method disclosed in Japanese Patent Laid-Open No. 343764/1992, in which a convex body of a fluorine-based compound is added to the surface of the cloth.
【０００４】[0004]
【発明が解決しようとする課題】前述の方法では多くの
場合十分満足する撥水性を得ることが困難であるか、あ
るいは高価なフッ化物を密度高く大量に表面に付着させ
る必要があるという問題がある。In many cases, it is difficult to obtain sufficiently satisfactory water repellency by the above-mentioned method, or there is a problem that expensive fluoride needs to be adhered to the surface in a large amount in high density. is there.
【０００５】本発明はこのような背景に行われたもので
あって、表面に微細な多段凹凸構造をもつように固体表
面を処理し、より撥水性の高い表面を得ることができる
生成方法を提供することを目的とする。The present invention has been made against such a background, and a method for producing a solid surface having a fine multi-step concavo-convex structure to obtain a surface having higher water repellency can be obtained. The purpose is to provide.
【０００６】[0006]
【課題を解決するための手段】本発明は、表面全部ある
いはその一部が撥水性物質で形成される固体およびその
生成方法に関するものであって、表面の少なくとも一部
に、大きい周期の凹凸が形成されその凹凸構造が前記周
期より小さい周期の凹凸構造を含む多段凹凸構造を有
し、その表面積増倍因子が５以上であることを特徴とす
る。前記多段凹凸構造は、その周期が１ｍｍ以下１０ｎ
ｍ以上であることが望ましい。The present invention relates to a solid whose surface is wholly or partly formed of a water-repellent substance and a method for producing the same, in which at least a part of the surface has irregularities with a large period. The formed uneven structure has a multi-step uneven structure including an uneven structure having a period smaller than the above period, and the surface area multiplication factor is 5 or more. The multi-step concavo-convex structure has a period of 1 mm or less and 10 n
It is preferably m or more.
【０００７】多段凹凸構造は、それを構成する大きな周
期の凹凸構造が小さい周期の凹凸構造からなり、その小
さい周期の凹凸構造がさらに小さな周期の凹凸構造から
なるというように、二つ以上の異なる周期の凹凸から構
成された構造であり、フラクタル構造はその一例であ
る。その際、凹凸構造は近似的、確率的な意味で周期的
であればよい。The multi-step concavo-convex structure has two or more different structures, such that the concavo-convex structure having a large period comprises a concavo-convex structure having a small period, and the concavo-convex structure having a small period comprises a concavo-convex structure having a smaller period. A fractal structure is an example of such a structure that is composed of periodic irregularities. At that time, the concavo-convex structure may be periodic in an approximate and probabilistic sense.
【０００８】前記多段凹凸構造は、切削加工、研削加
工、電解加工を含む機械加工、電気めっき、レーザ加工
を含む電気的加工、電気分解、化学反応、微生物反応、
拡散律速凝集を含む化学的加工、真空蒸着、リソグラフ
ィー、イオンビーム加工、プラズマ加工を含むその他の
加工、あるいは前記各加工方法を組合せた加工を施すこ
とにより形成することができる。The multi-step concavo-convex structure includes cutting, grinding, machining including electrolytic processing, electroplating, electrical processing including laser processing, electrolysis, chemical reaction, microbial reaction,
It can be formed by performing chemical processing including diffusion-controlled agglomeration, vacuum evaporation, lithography, ion beam processing, other processing including plasma processing, or a combination of the above processing methods.
【０００９】ここで、撥水性物質とは、その物質で滑ら
かな平面状の清浄表面を作ったときにその表面の液体に
対する接触角が９０°以上になる物質であり、表面積増
倍因子とは、全ての凹凸に沿って計測した表面積（実表
面積）を１ｍｍ以下のスケールの凹凸を無視してならし
た平らな面の表面積で割った値である。慣用的に撥水性
という言葉を使用するが、本発明の対象は必ずしも水の
付着する表面に限定されるものでなく、アルコール、油
を含む液体と表面との接触角を増大させるために適用さ
れる。Here, the water-repellent substance is a substance having a contact angle of 90 ° or more with respect to the liquid when a smooth flat clean surface is formed from the substance, and the surface area multiplication factor is , The surface area (actual surface area) measured along all the irregularities is divided by the surface area of a flat surface ignoring irregularities on a scale of 1 mm or less. Although the term water repellent is conventionally used, the subject of the present invention is not necessarily limited to surfaces to which water adheres, but is applied to increase the contact angle between a liquid containing alcohol, oil and the surface. It
【００１０】[0010]
【作用】固体表面上の液滴の接触角は、固体−液体界
面、固体−気体界面、気体−液体界面の三種類の界面の
界面張力のつりあいによって定まる。固体表面が微細な
多段凹凸構造をとり大きな実表面積をもつようになる
と、固体表面の単位切り出し面当りの界面エネルギは、
平らな表面のときと比べ表面積増倍因子倍だけ大きくな
る。そのために、固体−液体界面および固体−気体界面
は見かけ上、非常に大きな界面張力をもつことになる。
この界面張力の増加により平らな固体表面上とは異なる
界面張力のつりあいが多段凹凸構造表面上で生じ、液滴
の接触角の増加が導かれる。この際、液滴をなす液体は
水に限らず油などの任意の液体でよいが、特に水の場合
には撥水性の増加が得られる。The contact angle of the liquid droplet on the solid surface is determined by the balance of the interfacial tensions of the three types of interfaces: the solid-liquid interface, the solid-gas interface, and the gas-liquid interface. When the solid surface has a fine multi-step concavo-convex structure and has a large actual surface area, the interfacial energy per unit cut surface of the solid surface becomes
The surface area multiplication factor is larger than that of a flat surface. Therefore, the solid-liquid interface and the solid-gas interface apparently have very large interfacial tension.
Due to this increase of the interfacial tension, the equilibrium of the interfacial tension different from that on the flat solid surface is generated on the surface of the multi-step concavo-convex structure, which leads to the increase of the contact angle of the droplet. At this time, the liquid forming the droplets is not limited to water but may be any liquid such as oil, but particularly in the case of water, an increase in water repellency can be obtained.
【００１１】そこで、固体表面上、大きい周期の凹凸構
造と、その凹凸構造の上にさらに小さいいくつかの周期
の凹凸構造を複数段有する多段凹凸構造を形成し、その
表面積増倍因子が５以上になるようにすることにより、
撥水性をさらに向上させることができ、各種産業分野の
用品に適用することができる。Therefore, a multi-step concavo-convex structure having a large-period concavo-convex structure on the solid surface and a plurality of smaller concavo-convex structures with several smaller periods is formed on the concavo-convex structure, and the surface area multiplication factor is 5 or more. By making
The water repellency can be further improved and it can be applied to products in various industrial fields.
【００１２】[0012]
【実施例】次に、本発明実施例を図面に基づいて説明す
る。図１は本発明実施例における多段凹凸構造の断面を
示す図、図２は本発明実施例における多段凹凸構造の表
面の状態を示す斜視図である。Embodiments of the present invention will now be described with reference to the drawings. FIG. 1 is a view showing a cross section of a multi-step uneven structure according to an embodiment of the present invention, and FIG. 2 is a perspective view showing a surface state of the multi-step uneven structure according to an embodiment of the present invention.
【００１３】本発明実施例は、固体表面の少なくとも一
部に、大きい周期の凹凸構造Ａおよびその凹凸構造自体
がさらに小さい周期の凹凸構造Ｂで形成された多段凹凸
構造を有し、その表面積増倍因子が５以上である撥水表
面を有する。前記多段凹凸構造は、その周期が１ｍｍ以
下１０ｎｍ以上に形成される。図１および図２に示す例
は、施削加工あるいは研削加工により形成されたもので
あるが、多段凹凸構造を形成するには他の方法を用いる
ことができ、例えば、集積回路製作に用いられている真
空蒸着、リソグラフィー、イオンビーム加工、プラズマ
加工などにより形成することが可能でありレーザ加工あ
るいは印刷技術によっても形成することができる。The embodiment of the present invention has a multi-step concavo-convex structure in which the concavo-convex structure A having a large period and the concavo-convex structure itself having a concavo-convex structure B having a smaller period are formed on at least a part of the solid surface, and the surface area is increased. It has a water repellent surface with a fold factor of 5 or more. The multi-step concavo-convex structure has a period of 1 mm or less and 10 nm or more. The examples shown in FIGS. 1 and 2 are formed by machining or grinding, but other methods can be used to form the multi-step concavo-convex structure, and for example, they are used in integrated circuit fabrication. It can be formed by vacuum vapor deposition, lithography, ion beam processing, plasma processing, etc., which can also be formed by laser processing or printing technology.
【００１４】また、温度や温度勾配、化学物質の濃度や
濃度勾配、電磁場などの外部因子を制御することにより
自然発生させるものとして、電気分解、化学反応、微生
物反応などにより固体表面を溶解あるいは腐食させる方
法、電気分解や拡散律速凝集などにより固体表面に物質
を析出させる方法、微粒子凝集体を固体表面に付着させ
る方法、互いに非相溶な二種類の物質を混合し相分離を
進行させて二つの相が互いに入り組んだ相分離パターン
ができたときにどちらか片方の物質のみを溶出させる方
法、あるいは、アルキルケテンダイマーやジアルキルケ
トンなどのように融液あるいは溶液からの固化時に自然
に多段凹凸化するものを利用する方法などがある。特に
室温で固化時に自然に多段凹凸化するものは撥水塗料と
して用いることができる。In addition, the solid surface is dissolved or corroded by electrolysis, chemical reaction, microbial reaction, etc., which are naturally generated by controlling external factors such as temperature, temperature gradient, concentration of chemical substance, concentration gradient, electromagnetic field, etc. Method, a method of precipitating a substance on the solid surface by electrolysis or diffusion-controlled aggregation, a method of adhering fine particle aggregates to the solid surface, and a method of mixing two types of substances that are incompatible with each other and promoting phase separation A method in which only one of the substances is eluted when a phase separation pattern in which two phases are intricate with each other is formed, or a multi-step unevenness is naturally formed when solidifying from a melt or solution such as alkyl ketene dimer or dialkyl ketone. There are ways to use what you do. In particular, a material that naturally has multi-level irregularities when solidified at room temperature can be used as a water-repellent coating material.
【００１５】さらに、大きな周期の凹凸構造Ａを機械加
工により形成し、それに腐食などの方法により小さい周
期の凹凸構造を形成することもでき、前述の各方法で形
成した多段凹凸構造表面、あるいは蓮の葉の表面などの
自然界にすでに存在している多段凹凸構造表面から金属
やエポキシ樹脂などで金型を作成し、金型そのもの、あ
るいはその金型から作成した多段凹凸構造表面のレプリ
カを用いても形成することができる。Further, it is also possible to form the uneven structure A having a large period by machining and to form the uneven structure having a smaller period by a method such as corrosion, and to form the uneven structure surface of the multi-step uneven structure formed by each of the above-mentioned methods, or lotus lotus. Using a metal or epoxy resin, etc., to make a mold from a multi-step uneven surface that already exists in nature, such as the surface of a leaf, and using the mold itself or a replica of the multi-step uneven surface made from the mold. Can also be formed.
【００１６】このようにして生成された多段凹凸構造表
面が親水性物質でできている場合には、表面の全部ある
いは一部を撥水性物質でコーティングするか、多段凹凸
構造表面が撥水性物質でできている場合には、そのまま
用いるか、あるいはさらに高機能の撥水性物質で表面の
全部あるいは一部をコーティングすることによって撥水
表面として用いる。ここで、親水性物質とは、その物質
で滑らかな平面状の清浄表面を作ったときに、その表面
の水に対する接触角が９０°以下になる物質のことであ
る。When the surface of the multi-step uneven structure thus produced is made of a hydrophilic substance, all or part of the surface is coated with a water-repellent substance, or the surface of the multi-step uneven structure is made of a water-repellent substance. When it is prepared, it is used as it is, or it is used as a water-repellent surface by coating all or part of the surface with a highly functional water-repellent substance. Here, the hydrophilic substance is a substance having a contact angle with water of 90 ° or less when a smooth, flat and clean surface is formed from the substance.
【００１７】このようにして生成された多段凹凸構造の
表面積増倍因子の値は大きいほど撥水性が向上する。固
体表面上の液滴の接触角は、固体−液体界面、固体−気
体界面、気体−液体界面の三種類の界面の界面張力のつ
りあいによって定まる。固体表面が微細な多段凹凸構造
をとり大きな実表面積をもつようになると、固体表面の
単位切り出し面当りの界面エネルギは、平らな表面のと
きと比べ表面積増倍因子の倍数だけ大きくなる。その結
果、固体−液体界面および固体−気体界面は見かけ上、
非常に大きな界面張力をもつことになる。この界面張力
の増加のため、平らな固体表面上とは異なる界面張力の
つりあいが多段凹凸構造表面上で生じ、その結果、接触
角の増加、すなわち撥水性の増加がもたらされる。The larger the value of the surface area multiplication factor of the thus formed multi-step concavo-convex structure, the better the water repellency. The contact angle of a droplet on a solid surface is determined by the equilibrium of the interfacial tensions at three types of interfaces: a solid-liquid interface, a solid-gas interface, and a gas-liquid interface. When the solid surface has a fine multi-step concavo-convex structure and has a large actual surface area, the interfacial energy per unit cut-out surface of the solid surface becomes larger by a multiple of the surface area multiplication factor than that of a flat surface. As a result, the solid-liquid interface and the solid-gas interface are apparently
It will have a very large interfacial tension. Due to this increase in interfacial tension, an equilibrium of interfacial tension different from that on a flat solid surface occurs on the surface of the multi-step uneven structure, resulting in an increase in contact angle, that is, an increase in water repellency.
【００１８】前述の表面積増倍因子を測定するには、一
定容積中での吸着にともなうガスの圧力変化から固体表
面に吸着したガスの量を求める容量法を用いて、例え
ば、液体窒素温度下で多段凹凸構造表面の窒素ガスの吸
着等温線を求める。この等温線の比較的低圧側のガスの
吸着量に対してＢ．Ｅ．Ｔ．（無限層吸着等温式）理論
を適用してガスの単分子吸着量を求める。この吸着量
と、ガス分子の吸着時の温度における分子占有断面積か
ら単位切り出し面あたりの実表面積すなわち表面積増倍
因子を求める（参考資料、慶伊富長著 吸着（共立出
版））。To measure the above surface area multiplication factor, the volumetric method for determining the amount of gas adsorbed on the solid surface from the pressure change of gas accompanying adsorption in a constant volume is used, for example, under the temperature of liquid nitrogen. Determine the adsorption isotherm of nitrogen gas on the surface of the multi-step uneven structure. For the adsorption amount of gas on the relatively low pressure side of this isotherm, B. E. T. (Infinite layer adsorption isotherm) The theory is applied to find the amount of monomolecular adsorption of gas. The actual surface area per unit cut-out surface, that is, the surface area multiplication factor, is determined from this adsorption amount and the molecular occupation cross-sectional area at the temperature at which gas molecules are adsorbed (reference material, Keicho Tominaga Adsorption (Kyoritsu Shuppan)).
【００１９】表面の多段凹凸構造が角柱や角錐、円柱、
円錐などからなる比較的単純な構造である場合には、表
面およびいくつかの断面の光学顕微鏡写真ならびに走査
型電子顕微鏡写真等から、１ｍｍ×１ｍｍの切り出し面
あたりの実表面積Ｓ（ｍｍ2）を直接算出することがで
きる。このＳが表面積増倍因子となる。The multi-step concavo-convex structure on the surface is a prism, a pyramid, a cylinder,
In the case of a relatively simple structure such as a cone, the actual surface area S (mm 2 ) per cut surface of 1 mm × 1 mm is obtained from the optical microscope photograph of the surface and some cross sections and the scanning electron microscope photograph. It can be calculated directly. This S becomes a surface area multiplication factor.
【００２０】〔機械加工による実施例〕ここで、機械加
工により作成した試料について説明する。この試料は、
縦２ｃｍ、横２ｃｍ、厚さ１ｃｍの直方体状のテフロン
板のひとつの表面を図１に示すような断面をもつ多段凹
凸構造表面に切削加工したもので、その表面は図２に示
すようになる。これは、図３に示すピッチａｍｍ、凸部
幅ｂｍｍ、深さｃｍｍの櫛の歯状断面をもつ一段目の凹
凸面に、ピッチ０．１ｍｍ、深さ０．２ｍｍのＶ字型の
二段目の凹凸面を形成した多段凹凸構造となっている。
この多段凹凸構造テフロン表面の蒸留水に対する接触角
を測定した。[Example by Machining] Here, a sample prepared by machining will be described. This sample is
One surface of a rectangular parallelepiped Teflon plate having a length of 2 cm, a width of 2 cm, and a thickness of 1 cm is machined into a multi-step concavo-convex structure surface having a cross section as shown in Fig. 1. The surface is as shown in Fig. 2. . This is a V-shaped two-step pattern having a pitch of 0.1 mm and a depth of 0.2 mm on the uneven surface of the first step having a tooth-shaped cross section of a comb having a pitch amm, a convex portion width bmm, and a depth cmm shown in FIG. It has a multi-step concavo-convex structure in which uneven surfaces of the eyes are formed.
The contact angle of the surface of the Teflon having the multi-step uneven structure with respect to distilled water was measured.
【００２１】図４（ａ）、（ｂ）に接触角測定装置の概
略を示す。前述の試験試料１を光学式接触角計（協和界
面科学（株）製、ＣＡ−Ａ型）の試料台２上に載置し、
液滴滴下用のシリンジ３に蒸留水を０．５ｃｃ入れ、シ
リンジ３の針の先に直径１ｍｍの液滴４を作る。液滴４
と試験試料１の間を約１ｃｍに保ち、シンリジ３に振動
を与えて針先の液滴４を試験試料１の上に落下させる。
液滴４を落下させた後、液滴４と試験試料１との間の接
触角（θ）を測定する。FIGS. 4A and 4B show the outline of the contact angle measuring device. The test sample 1 described above was placed on the sample stand 2 of an optical contact angle meter (CA-A type manufactured by Kyowa Interface Science Co., Ltd.),
0.5 cc of distilled water is put into the syringe 3 for dropping a droplet, and a droplet 4 having a diameter of 1 mm is formed at the tip of the needle of the syringe 3. Droplet 4
The distance between the test sample 1 and the test sample 1 is kept at about 1 cm, and the synrige 3 is vibrated to drop the droplet 4 at the needle tip onto the test sample 1.
After dropping the droplet 4, the contact angle (θ) between the droplet 4 and the test sample 1 is measured.
【００２２】いくつかのテフロン試料を用いて接触角θ
を測定した実施例の結果を表１に示す。表面積増倍因子
が５以上となる試料では接触角θの大きい、良好な撥水
表面が得られている。The contact angle θ using several Teflon samples
Table 1 shows the results of Examples in which In the sample having the surface area multiplication factor of 5 or more, a good water repellent surface having a large contact angle θ was obtained.
【００２３】[0023]
【表１】 表２は、図３に示す断面を持つ一段だけの凹凸構造テフ
ロン試料を切削加工で作成し、その表面の蒸留水に対す
る接触角を同様にして測定した比較例を示したものであ
る。実施例と比べて接触角θが小さく、十分な撥水性が
得られていない。[Table 1] Table 2 shows a comparative example in which a Teflon sample having a concavo-convex structure having only one step having the cross section shown in FIG. 3 was prepared by cutting, and the contact angle of the surface to distilled water was measured in the same manner. The contact angle θ is small as compared with the examples, and sufficient water repellency is not obtained.
【００２４】[0024]
【表２】 〔電気めっきによる実施例〕つぎに、電気めっきにより
作成した試料について説明する。この試料は、亜鉛めっ
き処理で、亜鉛イオンを含む電解質溶液中に０．５〜２
ｇ／リットルのポリヒドロキシスチレンアミノメチル化
物を酢酸中和して混合し、陰極をなす金属板上に亜鉛と
ポリマーの複合体を共折させたものである。ポリマーの
アミノ化度を０．３〜１．０にし、複合体中にポリマー
を０．０１〜０．６重量パーセント混入させることによ
って、めっき表面は１０〜１００μｍの凹凸のなかに２
〜５μｍの針状構造をもつ多段凹凸構造となる。水−メ
タノール混合溶液（体積比５０：５０）５０ｃｃにフッ
素化モノアルキルフォスフェート（ＣＦ3 （ＣＦ2 ）7
ＣＨ2 ＣＨ2 ＯＰＯ（ＯＨ）2 ）１ｇを溶解して、これ
にめっき処理した試験片を浸せきすることで表面をフッ
素コーティングし、その表面の蒸留水に対する接触角を
測定したところ、接触角１４０度〜１６０度の高撥水表
面が得られた。[Table 2] [Example by Electroplating] Next, a sample prepared by electroplating will be described. This sample was galvanized to 0.5-2 in an electrolyte solution containing zinc ions.
A polyhydroxystyrene aminomethylated product (g / l) was neutralized with acetic acid and mixed, and a composite of zinc and polymer was co-folded on a metal plate forming a cathode. By setting the amination degree of the polymer to 0.3 to 1.0 and mixing the polymer into the composite in an amount of 0.01 to 0.6% by weight, the plating surface has unevenness of 10 to 100 μm.
It becomes a multi-step concavo-convex structure having a needle-like structure of ˜5 μm. Fluorinated monoalkyl phosphate (CF 3 (CF 2 ) 7 was added to 50 cc of water-methanol mixed solution (volume ratio 50:50).
CH 2 CH 2 OPO (OH) 2 ) (1 g) was dissolved, and the surface of the test piece plated with this was immersed in fluorine to coat the surface with fluorine, and the contact angle of the surface with distilled water was measured. A highly water-repellent surface having a degree of up to 160 degrees was obtained.
【００２５】前述の亜鉛めっき処理で、電解質溶液中に
ポリヒドロキシスチレンアミノメチル化物を含有させな
い場合には陰極の金属板表面は平らな亜鉛めっき表面と
なるが、比較例としてその表面を同様にフッ素コーティ
ングし、その表面の蒸留水に対する接触角を測定したと
ころ接触角は１１０度〜１２０度であった。In the above-mentioned galvanizing treatment, when the polyhydroxystyrene aminomethylated product is not contained in the electrolyte solution, the surface of the metal plate of the cathode becomes a flat galvanized surface. When the coating was performed and the contact angle of the surface with distilled water was measured, the contact angle was 110 to 120 degrees.
【００２６】〔融液成長による実施例〕図５（ａ）およ
び（ｂ）はアルキルケテンダイマーおよびジアルキルケ
トンの混合物を用いた試料の製法の模式図および試料を
示す図である。この試料は、アルキルケテンダイマーを
撥水剤の母剤としジアルキルケトンを補助剤として、融
液から冷却固化されることにより得られたものである。[Example by Melt Growth] FIGS. 5 (a) and 5 (b) are a schematic view of a method for producing a sample using a mixture of an alkyl ketene dimer and a dialkyl ketone and a diagram showing the sample. This sample was obtained by cooling and solidifying from a melt using an alkyl ketene dimer as a base material of a water repellent agent and a dialkyl ketone as an auxiliary agent.
【００２７】すなわち、トルエンを溶媒として、ステア
リン酸クロライド（東京化成（株）製、純度９３．４
％）にトリエチルアミン（東京化成（株）製、純度９９
％）を反応温度５０℃の条件下で作用させ、反応が完結
した後、反応副生成物であるトリエチルアミン塩酸塩を
熱時ろ過することで除去し、トルエンを減圧下で蒸発さ
せることにより分子量５３３であるアルキルケテンダイ
マーが得られる。このアルキルケテンダイマーをｎ−ヘ
キサン（関東化学（株）製、特級）から再結晶を行うこ
とで純度９５％以上、融点６５〜６７℃のアルキルケテ
ンダイマーが得られる。補助剤のジアルキルケトンに
は、ステアロン（東京化成（株）製、純度約８０％）を
ｎ−ヘキサンから再結晶して使用した。融点は８６〜８
７℃である。That is, stearic acid chloride (manufactured by Tokyo Kasei Co., Ltd., purity 93.4) using toluene as a solvent.
%) Triethylamine (manufactured by Tokyo Kasei Co., Ltd., purity 99)
%) Under the condition of a reaction temperature of 50 ° C., and after the reaction is completed, the reaction by-product triethylamine hydrochloride is removed by hot filtration, and toluene is evaporated under reduced pressure to give a molecular weight of 533. An alkyl ketene dimer is obtained. This alkylketene dimer is recrystallized from n-hexane (Kanto Chemical Co., Inc., special grade) to obtain an alkylketene dimer having a purity of 95% or more and a melting point of 65 to 67 ° C. As dialkyl ketone as an auxiliary agent, stearone (manufactured by Tokyo Kasei Co., Ltd., purity about 80%) was recrystallized from n-hexane and used. Melting point is 86-8
It is 7 ° C.
【００２８】撥水材としてはアルキルケテンダイマーと
ジアルキルケトンの混合物を用いた。図５中、６は撥水
材を融解させるために、撥水材の融点以上まで加熱する
ことのできる加熱装置である。７は撥水材の支持体とし
て用いたガラス板（厚さ１ｍｍ、幅２６ｍｍ、長さ７６
ｍｍ）である。８は撥水材である。９は撥水材を加熱融
解後、１０℃／ｈｒで冷却した試験片である。このよう
に、撥水材を一度融解させた後に冷却固化させた場合、
その表面形状は、走査型電子顕微鏡（日立製Ｓ４００
０）による観察では、直径１０〜１００μｍの比較的大
きなスケールの凹凸と、さらにその凹凸構造自身が長さ
１〜１０μｍの比較的小さな鱗片状の凹凸から成ってい
ることがわかった。As the water repellent material, a mixture of alkyl ketene dimer and dialkyl ketone was used. In FIG. 5, reference numeral 6 denotes a heating device capable of heating the water repellent material up to the melting point or higher in order to melt the water repellent material. 7 is a glass plate used as a support for the water repellent material (thickness 1 mm, width 26 mm, length 76
mm). 8 is a water repellent material. Reference numeral 9 represents a test piece obtained by heating and melting the water repellent material and then cooling it at 10 ° C./hr. In this way, when the water repellent material is once melted and then cooled and solidified,
The surface shape is a scanning electron microscope (Hitachi S400
The observation by (0) revealed that the unevenness of a relatively large scale having a diameter of 10 to 100 μm and the uneven structure itself consisted of relatively small scale-like unevenness having a length of 1 to 10 μm.
【００２９】このようにして作成した多段凹凸表面を持
つ撥水材の補助材であるジアルキルケトンの混合比を変
化させて、その表面の水の接触角の測定と表面形状の観
察を行った。The contact angle of water on the surface was measured and the surface shape was observed by changing the mixing ratio of the dialkyl ketone, which is an auxiliary material of the water-repellent material having the multi-step uneven surface thus formed.
【００３０】撥水材であるアルキルケテンダイマーとジ
アルキルケトン混合物の混合比と、そのときの表面での
蒸留水の接触角、およびその表面形状の関係を表３に示
す。これによると混合比が９５：５、９０：１０、８
５：１５、８０：２０で接触角１５３°〜１６０°が得
られ、表面における凹凸も大きい周期で１０〜１００μ
ｍ、小さい周期で１０〜１μｍの良好な段が形成された
多段凹凸構造が得られている。また、混合比８５：１５
のものについては、０．５ｍｍ〜０．８ｍｍのさらに大
きな周期の凹凸が光学顕微鏡によって観察された。Table 3 shows the relationship between the mixing ratio of the alkyl ketene dimer as the water repellent and the dialkyl ketone mixture, the contact angle of distilled water on the surface at that time, and the surface shape. According to this, the mixing ratio is 95: 5, 90:10, 8
A contact angle of 153 ° to 160 ° was obtained at 5:15 and 80:20, and unevenness on the surface was 10 to 100 μ at a large cycle.
m, a multi-step concavo-convex structure in which good steps of 10 to 1 μm are formed with a small cycle is obtained. Also, the mixing ratio is 85:15.
As for the sample No. 1, unevenness with a larger period of 0.5 mm to 0.8 mm was observed by an optical microscope.
【００３１】[0031]
【表３】 この試料に対する比較例として、試験片９の表面をカッ
ターナイフで削り、その表面を走査型電子顕微鏡（日立
製、Ｓ４０００）で観察したところ凹凸構造は観察され
なかった。この凹凸構造を有さない試験片表面での水の
接触角を光学式接触角計（協和界面科学（株）製、ＣＡ
−Ａ型）で測定したところ１００〜１１５°であった。[Table 3] As a comparative example for this sample, when the surface of the test piece 9 was ground with a cutter knife and the surface was observed with a scanning electron microscope (S4000, manufactured by Hitachi), no uneven structure was observed. An optical contact angle meter (Kyowa Interface Science Co., Ltd., CA
It was 100 to 115 ° as measured by (A type).
【００３２】図６はアルキルケテンダイマーによる〔外
１〕の超撥水表面を示す図（走査型電子顕微鏡：ＳＥＭ
写真）図７はその面上の液滴を示したもので、液滴の形
状は完全に球状を保ち撥水性にすぐれているこがわか
る。図８はアルキルケテンダイマーによる切り出し平滑
面を示す図、図９はその面上の液滴を示したもので、
〔外２〕と低く、そのために液滴の形状は半球状とな
り、撥水性の悪さがわかる。FIG. 6 is a view showing a super water-repellent surface of [External 1] formed by an alkyl ketene dimer (scanning electron microscope: SEM).
(Photo) Figure 7 shows the droplets on the surface. It can be seen that the shape of the droplets is perfectly spherical and has excellent water repellency. FIG. 8 is a view showing a smooth surface cut out by an alkyl ketene dimer, and FIG. 9 shows droplets on the surface.
It is as low as [External 2], and therefore the shape of the droplet is hemispherical, and the poor water repellency can be seen.
【００３３】[0033]
【外１】 [Outer 1]
【００３４】[0034]
【外２】 〔レプリカによる実施例〕次に、試験片９の型を酢酸ビ
ニル樹脂エマルジョン系接着剤を用いて作成し、その構
造を転写した表面での接触角の測定を行った。その試料
は、３０ｃｃのビーカに酢酸ビニル樹脂エマルジョン系
接着剤を２０ｃｃ入れ、その中に蒸留水の接触角が１６
０°〜１７４°である試験片９を投入し、２０トール減
圧下で脱気処理を１０分間行い、常圧に戻してから酢酸
ビニル樹脂エマルジョン系接着剤を固化させた。樹脂が
完全に固化した後、試験片９のガラス面と撥水材の間を
カッターナイフを用いて切り放し、固化した樹脂に残り
付着している撥水材は４０〜５０℃のクロロホルムにて
手早く洗い流した。これは固化した樹脂を８０℃まで加
熱して樹脂表面に残った撥水材を溶かし出してもよい。
このようにしてできた、試験片９とは逆の凹凸構造を持
つ試験片の表面を走査型電子顕微鏡（日立製、Ｓ４００
０）を用いて観察したところ、その多段の凹凸構造はか
なり細部まで転写されていた。この逆の凹凸表面構造を
持つ試験片表面と蒸留水の間の接触角を光学式接触角計
（協和界面科学（株）製、ＣＡ−Ａ型）で測定したとこ
ろ１３０〜１４０°であった。[Outside 2] [Example by Replica] Next, a mold of the test piece 9 was prepared using a vinyl acetate resin emulsion adhesive, and the contact angle on the surface to which the structure was transferred was measured. For the sample, 20 cc of vinyl acetate resin emulsion adhesive was placed in a 30 cc beaker, and the contact angle of distilled water was 16
A test piece 9 having a temperature of 0 ° to 174 ° was put in, deaeration treatment was performed under a reduced pressure of 20 Torr for 10 minutes, the pressure was returned to normal pressure, and then the vinyl acetate resin emulsion-based adhesive was solidified. After the resin has completely solidified, the gap between the glass surface of the test piece 9 and the water repellent material is cut off with a cutter knife, and the water repellent material remaining on the solidified resin is quickly washed with chloroform at 40 to 50 ° C. Washed away. For this, the solidified resin may be heated to 80 ° C. to dissolve out the water repellent material remaining on the resin surface.
The surface of the thus-formed test piece having a concavo-convex structure opposite to that of the test piece 9 is scanned with a scanning electron microscope (Hitachi, S400
0), the multi-step concavo-convex structure was considerably transferred in detail. The contact angle between the surface of the test piece having this concavo-convex surface structure and distilled water was measured by an optical contact angle meter (CA-A type, manufactured by Kyowa Interface Science Co., Ltd.) and found to be 130 to 140 °. .
【００３５】〔結晶析出による実施例〕図１０（ａ）お
よび（ｂ）は二種のジアルキルケトンの混合物を用いた
試料の製法を示す模式図および試料を示す図である。こ
の試料は、撥水材として分子量の異なる二種類のジアル
キルケトンを用いて溶液から結晶を析出させたものであ
る。[Example by Crystal Precipitation] FIGS. 10 (a) and 10 (b) are a schematic diagram showing a method for producing a sample using a mixture of two kinds of dialkyl ketones and a diagram showing the sample. This sample is prepared by precipitating crystals from a solution using two kinds of dialkyl ketones having different molecular weights as a water repellent material.
【００３６】撥水材としてステアロン（東京化成
（株）、純度８０％）とパルミトン（東京化成（株）、
純度９１％以上）の混合物を用いたもので、その混合比
は表４に示す。撥水材は０．５ｇをクロロホルム８０ｃ
ｃに溶かし、シャーレ１０に入れる。また、試験片を得
るためにガラス板１１をシャーレ１０の底におく。この
状態から溶媒であるクロロホルムを１２時間かけて蒸発
させて撥水材の結晶を析出させることで、試験片１２を
得る。この試験片１２の表面を走査型電子顕微鏡（日立
製、Ｓ４０００）により観察したところ、試験片１２の
表面構造は、直径１０〜５０μｍの比較的大きな凹凸構
造から成っていることがわかった。また、この凹凸構造
自体も大きさ１μｍ程度の鱗片状の結晶の集まりである
ことがわかった。このようにしてできた多段凹凸構造を
持つジアルキルケトン系撥水材の表面での蒸留水の接触
角を光学式接触角計（協和界面科学（株）製、ＣＡ−Ａ
型）により測定した。As water repellent materials, stearone (Tokyo Kasei Co., Ltd., purity 80%) and palmitone (Tokyo Kasei Co., Ltd.)
A mixture having a purity of 91% or more) was used, and the mixing ratio is shown in Table 4. 0.5g of water repellent material is 80c of chloroform
Dissolve in c and put in a petri dish 10. Further, the glass plate 11 is placed on the bottom of the petri dish 10 to obtain a test piece. Chloroform as a solvent is evaporated from this state for 12 hours to precipitate crystals of the water repellent material, thereby obtaining a test piece 12. When the surface of the test piece 12 was observed with a scanning electron microscope (S4000, manufactured by Hitachi), it was found that the surface structure of the test piece 12 was composed of a relatively large uneven structure having a diameter of 10 to 50 μm. It was also found that this uneven structure itself is a collection of scale-like crystals having a size of about 1 μm. The contact angle of distilled water on the surface of the dialkylketone-based water repellent material having a multi-step concavo-convex structure thus formed is measured by an optical contact angle meter (Kyowa Interface Science Co., Ltd., CA-A).
Type).
【００３７】[0037]
【表４】 これによると混合比が５０：５０および２０：８０で接
触角１５６°および１４５°が得られ、表面における凹
凸も大きい周期で１０〜５０μｍ、小さい周期で１０μ
ｍ未満の良好な段が形成された多段凹凸構造が得られて
いる。[Table 4] According to this, a contact angle of 156 ° and 145 ° was obtained at a mixing ratio of 50:50 and 20:80, and unevenness on the surface was 10 to 50 μm in a large cycle and 10 μ in a small cycle.
A multi-step concavo-convex structure in which good steps of less than m are formed is obtained.
【００３８】この試料に対する比較例として、試験片１
２の表面をカッターナイフで削り、その表面を走査型電
子顕微鏡（日立製、Ｓ４０００）で観察したところ、凹
凸構造は観察されなかった。この凹凸構造を有さない試
験片表面での水の接触角を光学式接触角計（協和界面科
学（株）製、ＣＡ−Ａ型）で測定したところ、１００〜
１１０°であった。As a comparative example for this sample, test piece 1
When the surface of No. 2 was scraped with a cutter knife and the surface was observed with a scanning electron microscope (S4000, manufactured by Hitachi), no uneven structure was observed. When the contact angle of water on the surface of the test piece having no uneven structure was measured with an optical contact angle meter (CA-A type manufactured by Kyowa Interface Science Co., Ltd.), it was 100-
It was 110 °.
【００３９】つぎに、前述した分子吸着を利用した表面
積増倍因子の測定法により、表４中の混合比１００：０
の試料と混合比５０：５０の試料について表面積増倍因
子を測定した。前者の試料は高撥水の得られていない平
滑表面であり、後者の試料は高撥水を実現した多段凹凸
構造表面である。Next, the mixing ratio of 100: 0 in Table 4 was measured by the above-mentioned measuring method of the surface area multiplication factor utilizing the molecular adsorption.
The surface area multiplication factor was measured for the sample of No. 1 and the sample of the mixing ratio of 50:50. The former sample is a smooth surface where high water repellency is not obtained, and the latter sample is a multi-step concavo-convex structure surface which realizes high water repellency.
【００４０】２ｃｍ×２ｃｍに切断した試験試料２０枚
をサンプルセルに封入し、ガス吸着量測定装置（湯浅ア
イオニクス（株）製オートソーブ−１、クリプトンガス
使用）を用い実表面積を測定した。試験試料には片面に
のみジアルキルケトンが塗られており、他の面はガラス
面である。ガスの総吸着量からガラス面への吸着量分を
差し引き、ジアルキルケトン総切り出し面積８０ｃｍ2
あたりの実表面積を測定した結果を表５に示す。また、
そこから計算される表面積増倍因子も同表中に示してあ
る。Twenty test samples cut into 2 cm × 2 cm were enclosed in a sample cell, and the actual surface area was measured using a gas adsorption amount measuring device (Yuasa Ionics Co., Ltd., Autosorb-1, using krypton gas). The test sample is coated with dialkyl ketone on only one side and the other side is glass. Subtract the amount adsorbed on the glass surface from the total amount of adsorbed gas, and cut out the total area of dialkyl ketone 80 cm 2
Table 5 shows the results of measuring the actual surface area of each area. Also,
The surface area multiplication factor calculated from it is also shown in the table.
【００４１】これによると混合比１００：０の試料で
は、実表面積１０３、表面積増倍因子１．３であるのに
対し、混合比５０：５０の試料では実表面積５６３、表
面積増倍因子７．０を示した。According to this, the sample having a mixing ratio of 100: 0 has an actual surface area of 103 and a surface area multiplication factor of 1.3, whereas the sample having a mixing ratio of 50:50 has an actual surface area of 563 and a surface area multiplication factor of 7. 0 was shown.
【００４２】図１１（ａ）および（ｂ）はジアルキルケ
トン表面上の液滴を示したもので、（ａ）に示す平滑表
面の場合は接触角１０４°で液滴の形状は半球状となる
のに対し（ｂ）に示す多段凹凸表面の場合は、接触角１
５３°でほぼ完全な球状になっている。図１２は図１１
（ｂ）に示した多段凹凸構造をとったジアルキルケトン
の表面の状態を走査型電子顕微鏡（ＳＥＭ）で観察した
図である。FIGS. 11 (a) and 11 (b) show droplets on the surface of the dialkyl ketone. In the case of the smooth surface shown in FIG. 11 (a), the droplets are hemispherical at a contact angle of 104 °. On the other hand, in the case of the multi-level uneven surface shown in (b), the contact angle is 1
At 53 °, it is almost completely spherical. 12 is shown in FIG.
It is the figure which observed the state of the surface of the dialkyl ketone which took the multi-step concavo-convex structure shown in (b) with a scanning electron microscope (SEM).
【００４３】[0043]
【表５】 [Table 5]
【００４４】[0044]
【発明の効果】以上説明したように本発明によれば、固
体表面に大きい周期の凹凸構造および小さい周期の凹凸
構造を形成して多段凹凸構造にすることにより、雨具、
台所用品、衛生品、その他撥水を要求される機材、器
具、および産業用品の撥水性をさらに向上させることが
できる効果がある。As described above, according to the present invention, a rain gear is formed by forming a large-period concave-convex structure and a small-period concave-convex structure on a solid surface to form a multi-stage concave-convex structure.
There is an effect that the water repellency of kitchen utensils, hygiene products, other equipment, appliances, and industrial products that require water repellency can be further improved.
【図１】本発明実施例における機械加工により形成した
多段凹凸構造の断面を示す図。FIG. 1 is a view showing a cross section of a multi-step concavo-convex structure formed by machining in an example of the present invention.
【図２】本発明実施例における機械加工により形成した
多段凹凸構造の表面の状態を示す斜視図。FIG. 2 is a perspective view showing a state of a surface of a multi-step concavo-convex structure formed by machining in an example of the present invention.
【図３】比較例に使用した一段凹凸構造の断面を示す
図。FIG. 3 is a view showing a cross section of a one-step uneven structure used in a comparative example.
【図４】（ａ）および（ｂ）は接触角測定装置の要部の
構成および接触角を示す図。4A and 4B are diagrams showing a configuration and a contact angle of a main part of a contact angle measuring device.
【図５】（ａ）および（ｂ）はアルキルケテンダイマー
およびジアルキルケトンの混合物を用いた試料の製法を
示す模式図および試料を示す図。5 (a) and 5 (b) are a schematic view showing a method for producing a sample using a mixture of an alkyl ketene dimer and a dialkyl ketone, and a diagram showing the sample.
【図６】アルキルケテンダイマーによる超撥水表面を示
す図およびその面上の液滴を示す図。FIG. 6 is a diagram showing a super water-repellent surface by an alkyl ketene dimer and a diagram showing droplets on the surface.
【図７】アルキルケテンダイマーによる超撥水表面上の
液滴を示す図。FIG. 7 is a diagram showing droplets on a super water repellent surface formed by an alkyl ketene dimer.
【図８】アルキルケテンダイマーによる切り出し平滑面
を示す図。FIG. 8 is a view showing a smooth surface cut out by an alkyl ketene dimer.
【図９】アルキルケテンダイマーによる切出し平滑面上
の液滴を示す図。FIG. 9 is a diagram showing droplets on a smooth surface cut out by an alkyl ketene dimer.
【図１０】（ａ）および（ｂ）は二種のジアルキルケト
ンの混合物を用いた試料の製法を示す模式図および試験
片を示す図。10 (a) and 10 (b) are a schematic view showing a method for producing a sample using a mixture of two kinds of dialkyl ketones and a view showing a test piece.
【図１１】（ａ）および（ｂ）はジアルキルケトンによ
る撥水表面上の液滴の状態を示す図。11 (a) and 11 (b) are diagrams showing a state of droplets on a water-repellent surface formed by a dialkyl ketone.
【図１２】ジアルキルケトンによる高撥水表面を示す
図。FIG. 12 is a view showing a highly water-repellent surface formed by dialkyl ketone.
１ 試験試料 ２ 試料台 ３ シリンジ ４ 液滴 ６ 加熱装置 ７、１１ ガラス板 ８ アルキルケテンダイマーおよびジアルキルケント
混合物 ９、１２ 試験片 １０ シャーレ Ａ 大きい周期の凹凸構造 Ｂ 小さい周期の凹凸構造1 Test sample 2 Sample stage 3 Syringe 4 Droplet 6 Heating device 7, 11 Glass plate 8 Alkyl ketene dimer and dialkyl Kent mixture 9, 12 Test piece 10 Petri dish A Large irregular structure B Small irregular structure
─────────────────────────────────────────────────────
─────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成６年６月１６日[Submission date] June 16, 1994
【手続補正１】[Procedure Amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】図面の簡単な説明[Name of item to be corrected] Brief description of the drawing
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【図面の簡単な説明】[Brief description of drawings]
【図１】本発明実施例における機械加工により形成した
多段凹凸構造の断面を示す図。FIG. 1 is a view showing a cross section of a multi-step concavo-convex structure formed by machining in an example of the present invention.
【図２】本発明実施例における機械加工により形成した
多段凹凸構造の表面の状態を示す斜視図。FIG. 2 is a perspective view showing a state of a surface of a multi-step concavo-convex structure formed by machining in an example of the present invention.
【図３】比較例に使用した一段凹凸構造の断面を示す
図。FIG. 3 is a view showing a cross section of a one-step uneven structure used in a comparative example.
【図４】（ａ）および（ｂ）は接触角測定装置の要部の
構成および接触角を示す図。4A and 4B are diagrams showing a configuration and a contact angle of a main part of a contact angle measuring device.
【図５】（ａ）および（ｂ）はアルキルケテンダイマー
およびジアルキルケトンの混合物を用いた試料の製法を
示す模式図および試料を示す図。5 (a) and 5 (b) are a schematic view showing a method for producing a sample using a mixture of an alkyl ketene dimer and a dialkyl ketone, and a diagram showing the sample.
【図６】アルキルケテンダイマーによる超撥水表面結晶
構造を示すＳＥＭ写真。FIG. 6: Super water-repellent surface crystal by alkyl ketene dimer
The SEM photograph which shows a structure .
【図７】アルキルケテンダイマーによる超撥水表面上の
液滴を示す図。FIG. 7 is a diagram showing droplets on a super water repellent surface formed by an alkyl ketene dimer.
【図８】アルキルケテンダイマーによる切り出し平滑面
を示す図。FIG. 8 is a view showing a smooth surface cut out by an alkyl ketene dimer.
【図９】アルキルケテンダイマーによる切出し平滑面上
の液滴を示す図。FIG. 9 is a diagram showing droplets on a smooth surface cut out by an alkyl ketene dimer.
【図１０】（ａ）および（ｂ）は二種のジアルキルケト
ンの混合物を用いた試料の製法を示す模式図および試験
片を示す図。10 (a) and 10 (b) are a schematic view showing a method for producing a sample using a mixture of two kinds of dialkyl ketones and a view showing a test piece.
【図１１】（ａ）および（ｂ）はジアルキルケトンによ
る撥水表面上の液滴の状態を示す図。11 (a) and 11 (b) are diagrams showing a state of droplets on a water-repellent surface formed by a dialkyl ketone.
【図１２】ジアルキルケトンによる高撥水表面結晶構造
を示すＳＥＭ写真。FIG. 12: Crystal structure of highly water-repellent surface by dialkyl ketone
SEM photograph showing .
【符号の説明】 １ 試験試料 ２ 試料台 ３ シリンジ ４ 液滴 ６ 加熱装置 ７、１１ ガラス板 ８ アルキルケテンダイマーおよびジアルキルケント
混合物 ９、１２ 試験片 １０ シャーレ Ａ 大きい周期の凹凸構造 Ｂ 小さい周期の凹凸構造[Explanation of Codes] 1 Test sample 2 Sample stage 3 Syringe 4 Droplet 6 Heating device 7, 11 Glass plate 8 Alkyl ketene dimer and dialkyl kent mixture 9, 12 Specimen 10 Petri dish A Large irregularities B small irregularities Construction
───────────────────────────────────────────────────── フロントページの続き (72)発明者 辻井 薫 栃木県宇都宮市陽東１丁目11−23 直井ハ イツ405号 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kaoru Tsujii 1-11-23 Yoto, Utsunomiya City, Tochigi Prefecture Naoi Heights 405
Claims (6)
凹凸構造が形成されその凹凸構造が前記周期より小さい
周期の凹凸構造を含む多段凹凸構造を有し、その表面積
増倍因子が５以上である撥水表面を有する固体。1. An uneven structure having a large period is formed on at least a part of the surface, and the uneven structure has a multi-step uneven structure including an uneven structure having a period smaller than the period, and the surface area multiplication factor is 5 or more. A solid with a water repellent surface.
以下１０ｎｍ以上である請求項１記載の固体。2. The multi-step concavo-convex structure has a period of 1 mm.
The solid according to claim 1, which has a thickness of 10 nm or more.
請求項１または２記載の撥水表面を有する固体を生成す
る方法。3. By subjecting a solid surface to machining,
A method for producing a solid having a water repellent surface according to claim 1.
り、請求項１または２記載の撥水表面を有する固体を生
成する方法。4. A method for producing a solid having a water-repellent surface according to claim 1 or 2, by subjecting the surface of the solid to a chemical reaction.
求項４記載の撥水表面を有する固体を生成する方法。5. The method for producing a solid having a water-repellent surface according to claim 4, wherein the chemical reaction treatment is electroplating.
を凝集させることにより、請求項１または２記載の撥水
表面を有する固体を生成する方法。6. A method for producing a solid having a water repellent surface according to claim 1 or 2, by precipitating crystals or aggregating particles on the surface of the solid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33642493A JP3487888B2 (en) | 1993-12-28 | 1993-12-28 | Solid having water-repellent surface and method for producing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33642493A JP3487888B2 (en) | 1993-12-28 | 1993-12-28 | Solid having water-repellent surface and method for producing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07197017A true JPH07197017A (en) | 1995-08-01 |
| JP3487888B2 JP3487888B2 (en) | 2004-01-19 |
Family
ID=18298992
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33642493A Expired - Fee Related JP3487888B2 (en) | 1993-12-28 | 1993-12-28 | Solid having water-repellent surface and method for producing the same |
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| Country | Link |
|---|---|
| JP (1) | JP3487888B2 (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000058415A1 (en) * | 1999-03-25 | 2000-10-05 | Wilhelm Barthlott | Method and device for the loss-free transport of liquids |
| JP2005113110A (en) * | 2003-09-17 | 2005-04-28 | Keio Gijuku | Surface treatment agent, treated material, and method for treating surface |
| JP2007507405A (en) * | 2003-09-25 | 2007-03-29 | サグレス ディスカバリー， インコーポレイテッド | Fractal-forming alkyl ketene dimers for integral membrane protein crystal growth |
| US7455045B2 (en) | 2006-08-01 | 2008-11-25 | Aisan Kogyo Kabushiki Kaisha | Fluid flow control device for internal combustion engine |
| JP2011518006A (en) * | 2008-04-22 | 2011-06-23 | ザ プロクター アンド ギャンブル カンパニー | Disposable articles containing nanostructure-forming materials |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000058415A1 (en) * | 1999-03-25 | 2000-10-05 | Wilhelm Barthlott | Method and device for the loss-free transport of liquids |
| JP2005113110A (en) * | 2003-09-17 | 2005-04-28 | Keio Gijuku | Surface treatment agent, treated material, and method for treating surface |
| JP4635217B2 (en) * | 2003-09-17 | 2011-02-23 | 学校法人慶應義塾 | Surface treatment agent and material, and surface treatment method |
| JP2007507405A (en) * | 2003-09-25 | 2007-03-29 | サグレス ディスカバリー， インコーポレイテッド | Fractal-forming alkyl ketene dimers for integral membrane protein crystal growth |
| US7455045B2 (en) | 2006-08-01 | 2008-11-25 | Aisan Kogyo Kabushiki Kaisha | Fluid flow control device for internal combustion engine |
| US10071003B2 (en) | 2008-04-22 | 2018-09-11 | The Procter & Gamble Company | Disposable article including a nanostructure forming material |
| US8870839B2 (en) | 2008-04-22 | 2014-10-28 | The Procter & Gamble Company | Disposable article including a nanostructure forming material |
| JP2011518006A (en) * | 2008-04-22 | 2011-06-23 | ザ プロクター アンド ギャンブル カンパニー | Disposable articles containing nanostructure-forming materials |
| JP2012032655A (en) * | 2010-07-30 | 2012-02-16 | Fujimori Sangyo Kk | Laminate film with hologram, method for manufacturing the same and container using the same |
| JP2013544297A (en) * | 2010-10-28 | 2013-12-12 | スリーエム イノベイティブ プロパティズ カンパニー | Super hydrophobic film |
| JP2018532897A (en) * | 2015-10-05 | 2018-11-08 | ビーブイダブリュ ホールディング エージー | Textiles with microstructured surface and clothing comprising the same |
| US11613461B2 (en) | 2015-10-05 | 2023-03-28 | Bvw Holding Ag | Textiles having a microstructured surface and garments comprising the same |
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