JP2000312858A - Method for forming thin film of fluoroplastic or copolymer resin with fluoroplastic - Google Patents
Method for forming thin film of fluoroplastic or copolymer resin with fluoroplasticInfo
- Publication number
- JP2000312858A JP2000312858A JP12304299A JP12304299A JP2000312858A JP 2000312858 A JP2000312858 A JP 2000312858A JP 12304299 A JP12304299 A JP 12304299A JP 12304299 A JP12304299 A JP 12304299A JP 2000312858 A JP2000312858 A JP 2000312858A
- Authority
- JP
- Japan
- Prior art keywords
- fluororesin
- thin film
- fluoroplastic
- copolymer resin
- powder
- 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
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、フッ素樹脂又はフ
ッ素樹脂との共重合体樹脂の薄膜を水又は有機溶剤等を
使用しないで、いわば、乾式にて金属、セラミック、ガ
ラス、プラスチック等の基材上に形成させる方法に関す
るものであり、詳細には、平均粒径が５００μm 以下の
フッ素樹脂又はフッ素樹脂との共重合体樹脂の粉末を、
高圧ガスにて５０m/sec以上の噴射速度で金属、セラミ
ック、ガラス、プラスチック等の基材上に噴射すること
によりフッ素樹脂又はフッ素樹脂との共重合体樹脂の膜
厚５μm 以下の薄膜を形成することを特徴とする薄膜皮
膜形成方法に関するものである。BACKGROUND OF THE INVENTION The present invention relates to a method for forming a thin film of a fluororesin or a copolymer resin with a fluororesin without using water or an organic solvent in a dry manner, that is, a metal, ceramic, glass, plastic or the like. It relates to a method of forming on a material, specifically, powder of a fluororesin or a copolymer resin with a fluororesin having an average particle diameter of 500 μm or less,
A thin film having a thickness of 5 μm or less of a fluororesin or a copolymer resin with a fluororesin is formed by injecting a high-pressure gas onto a base material such as metal, ceramic, glass, or plastic at an injection speed of 50 m / sec or more. And a method for forming a thin film film.
【０００２】ポリテトラフルオロエチレン、テトラフル
オロエチレン/ ヘキサフルオロプロピレン共重合体、テ
トラフルオロエチレン/ パーフルオロアルキルビニルエ
ーテル共重合体、ポリクロロトリフルオロエチレン、ポ
リフッ化ビニリデン、ポリフッ化ビニル、エチレン/ テ
トラフルオロエチレン共重合体、エチレン/ クロロトリ
フルオロエチレン共重合体等のフッ素樹脂又はフッ素樹
脂との共重合体樹脂はどれも摩擦係数が小さく、液体に
濡れにくく水や油性の物質をよくはじく、また、非粘着
性にすぐれ雛型性が良い等の特性を持っている。そのた
めフッ素樹脂の皮膜はこのような特性を利用して、雛型
性の付与、撥水性の付与、滑性の向上等いろいろな用途
に利用されている。Polytetrafluoroethylene, tetrafluoroethylene / hexafluoropropylene copolymer, tetrafluoroethylene / perfluoroalkylvinyl ether copolymer, polychlorotrifluoroethylene, polyvinylidene fluoride, polyvinyl fluoride, ethylene / tetrafluoroethylene Fluororesins such as copolymers, ethylene / chlorotrifluoroethylene copolymers and copolymer resins with fluororesins all have a low coefficient of friction, are difficult to wet with liquids, and repel water and oily substances. It has characteristics such as excellent adhesiveness and good template. For this reason, the fluororesin film is utilized for various purposes such as imparting template properties, imparting water repellency, and improving lubricity by utilizing such properties.
【０００３】[0003]
【従来の技術】テフロン（登録商標）は一般的にそれ自
体、耐熱性があり、有機溶剤に溶けない性質を持ってお
り薄膜を形成するためには乳化重合によりフッ素樹脂の
微粒子を界面活性剤に分散させたディスパージョンを噴
射し塗装、浸漬、はけ塗り等の方法で塗布して乾燥さ
せ、その後、樹脂の融点まで加熱して皮膜とする方法
と、粉体を静電気を利用して噴射し融点まで加熱して皮
膜とする方法が行われている。2. Description of the Related Art In general, Teflon (registered trademark) itself has heat resistance and does not dissolve in an organic solvent. In order to form a thin film, fine particles of a fluororesin are formed by emulsion polymerization using a surfactant. Spray the dispersion dispersed in the resin, apply it by coating, dipping, brushing, etc., dry it, and then heat it to the melting point of the resin to form a film, or spray the powder using static electricity A method of forming a film by heating to a melting point has been performed.
【０００４】[0004]
【発明が解決しようとする課題】ディスパージョンによ
り行う方法では、液を安定化させるためディスパージョ
ンの液として酸性又はアルカリ性のものを用い、塗布時
に人が吸入すると呼吸器系の粘膜を侵され危険である。
また加熱時に界面活性剤の分解ガスなど有毒なガスが多
量に発生するため危険である。In the method performed by dispersion, an acidic or alkaline liquid is used as a dispersion liquid in order to stabilize the liquid, and when inhaled by a person at the time of application, the mucous membrane of the respiratory system is eroded and there is a danger. It is.
Moreover, it is dangerous because a large amount of toxic gas such as a decomposition gas of a surfactant is generated during heating.
【０００５】さらに、離型性を利用して型取り等を行う
ときはできるだけ薄い皮膜を形成することが望ましい
が、フッ素樹脂の微粒子を界面活性剤に分散させたディ
スパージョンを使用するため５μm 以下の薄膜を均一に
塗布することは非常に困難であり、薄く塗布しようとす
るとピンホールが生じやすい欠点がある。Further, it is desirable to form a film as thin as possible when performing molding or the like utilizing releasability. However, since a dispersion in which fine particles of a fluororesin are dispersed in a surfactant is used, the thickness is 5 μm or less. It is very difficult to apply a uniform thin film, and there is a drawback that a pinhole is liable to occur when trying to apply a thin film.
【０００６】また静電気にて粉体を付着させる方法で
は、粉体は通常２０μm 以上あるため、薄く塗布するこ
とは困難であり、５μm 以下の皮膜を形成することはで
きない。In the method of attaching powder by static electricity, since the powder is usually 20 μm or more, it is difficult to apply the powder thinly, and it is impossible to form a film of 5 μm or less.
【０００７】[0007]
【課題を解決するための手段】本発明は、上記の課題を
解決する方法としてポリテトラフルオロエチレン、テト
ラフルオロエチレン/ ヘキサフルオロプロピレン共重合
体、テトラフルオロエチレン/ ハーフルオロアルキルビ
ニルエーテル共重合体、ポリクロロトリフルオロエチレ
ン、ポリフッ化ビニリデン、ポリフッ化ビニル、エチレ
ン/ テトラフルオロエチレン共重合体、エチレン/ クロ
ロトリフルオロエチレン共重合体等のフッ素樹脂又はフ
ッ素樹脂との共重合体樹脂の粉末を風速５０m/ 秒以上
の高圧ガスにて金属、セラミック、ガラス、プラスチッ
ク等の基材上に噴射することにる衝突により発生する摩
擦熱によりフッ素樹脂又はフッ素樹脂との共重合体樹脂
の表面を溶融させることにより基材に付着し、５μm 以
下の薄膜を形成させる。According to the present invention, there is provided a method for solving the above-mentioned problems, comprising polytetrafluoroethylene, tetrafluoroethylene / hexafluoropropylene copolymer, tetrafluoroethylene / hafluoroalkylvinylether copolymer, Powder of fluororesin or copolymer resin with fluororesin such as chlorotrifluoroethylene, polyvinylidene fluoride, polyvinyl fluoride, ethylene / tetrafluoroethylene copolymer, ethylene / chlorotrifluoroethylene copolymer, etc. By melting the surface of fluororesin or copolymer resin with fluororesin by frictional heat generated by collision by spraying onto metal, ceramic, glass, plastic etc. base material with high pressure gas for more than seconds It adheres to the substrate and forms a thin film of 5 μm or less.
【０００８】この方法ではディスパージョンを使用しな
いため有毒ガスの発生もなく立体的な面でも均一なフッ
素樹脂の薄膜層が形成できる。また摩擦熱により付着す
るため付着後、加熱しなくてもフッ素樹脂の薄膜を形成
することができる。In this method, since no dispersion is used, no toxic gas is generated, and a uniform thin film layer of fluororesin can be formed even on a three-dimensional surface. In addition, since it adheres by frictional heat, a thin film of a fluororesin can be formed without heating after the adhesion.
【０００９】基材がガラス板など透明体のとき、前記基
材上のフッ素樹脂薄膜層を加熱溶融すれば、透明なフッ
素樹脂又はフッ素樹脂との共重合体樹脂の薄膜皮膜を形
成することができる。When the substrate is a transparent material such as a glass plate, a thin film of transparent fluororesin or a copolymer resin with fluororesin can be formed by heating and melting the fluororesin thin film layer on the substrate. it can.
【００１０】[0010]
【発明の実施の形態】フッ素樹脂またはフッ素樹脂を含
む共重合体樹脂の粉末を既知のサンドブラスト装置によ
り、噴射ノズルからガスの風速５０m/sec 以上の高圧ガ
スを使用してガラス、金属、セラミック、プラスチック
等の基材の表面に噴射することにより、衝突時に発生す
る摩擦熱又は衝撃熱で前記粉末を基材に付着させる。BEST MODE FOR CARRYING OUT THE INVENTION Powder of a fluororesin or a copolymer resin containing a fluororesin is blown by a known sandblasting device using a high-pressure gas having a gas velocity of 50 m / sec or more from an injection nozzle into glass, metal, ceramic, or the like. By spraying onto the surface of a base material such as plastic, the powder adheres to the base material by frictional heat or impact heat generated at the time of collision.
【００１１】このとき、付着した薄膜層表面上にさらに
薄膜層を形成しようとする現象が発生するが、前に付着
した薄膜層を剥離しながら再付着することになるため実
際には５μm より膜厚が厚くなることはない。実験によ
れば、平均１μm 程度、最大約５μm の膜厚であった。
このため基材の表面に均一なフッ素樹脂またはフッ素樹
脂を含む共重合体樹脂の薄膜を形成することができる。At this time, a phenomenon occurs in which a thin film layer is to be formed on the surface of the thin film layer to which the film has been attached. The thickness does not increase. According to experiments, the film thickness was about 1 μm on average and about 5 μm at maximum.
Therefore, a uniform thin film of the fluororesin or the copolymer resin containing the fluororesin can be formed on the surface of the base material.
【００１２】実施例１ 図１（Ａ）に示すようにガラス板1 に高圧圧縮空気にて
フッ素樹脂粉末７を噴射ノズル１１から噴射しフッ素樹
脂の薄膜８を形成させた。なお、前記フッ素樹脂粉末７
の噴射に先だって、平均粒径２５μm のカーボランダム
などの研削材を用いて噴射圧力３kg/cm2であらかじめガ
ラス板表面を均一に粗面化するとよい。Example 1 As shown in FIG. 1A, a fluororesin powder 7 was sprayed from a spray nozzle 11 onto a glass plate 1 with high-pressure compressed air to form a fluororesin thin film 8. The fluororesin powder 7
Prior to the spraying, the surface of the glass plate may be uniformly roughened at a spraying pressure of 3 kg / cm 2 using an abrasive such as carborundum having an average particle diameter of 25 μm.
【００１３】加工条件 加工圧力：５kg/cm2 加工ノズル口径：φ７mm ガラス板サイズ：３０cm ×３０cm ×厚さ３mm フヅ素樹脂材質：旭硝子製テフロンＣＯＰ（エチレン/
テトラフルオロエチレン共重合体） フッ素樹脂平均粒径：５０μm 以上の加工条件で膜厚が約１μm のフッ素樹脂の薄膜を
形成した。その後３００ ℃にて１５分加熱してフッ素
樹脂薄膜を溶融させ表面を平滑にし、透明の薄膜層をガ
ラス表面に形成させガラス板に擦水性の皮膜を形成し
た。Processing conditions Processing pressure: 5 kg / cm 2 Processing nozzle diameter: φ7 mm Glass plate size: 30 cm × 30 cm × thickness 3 mm Fluororesin material: Teflon COP made by Asahi Glass (ethylene /
Tetrafluoroethylene copolymer) Fluororesin average particle diameter: Under the processing conditions of 50 μm or more, a fluororesin thin film having a thickness of about 1 μm was formed. Thereafter, the coating was heated at 300 ° C. for 15 minutes to melt the fluororesin thin film to smooth the surface, form a transparent thin film layer on the glass surface, and form a water-resistant film on the glass plate.
【００１４】予備的にガラス面を粗面化しておいたもの
は、約２μm の膜厚が得られた。When the glass surface was preliminarily roughened, a film thickness of about 2 μm was obtained.
【００１５】実施例２ 図１（Ｂ）に示すようにプラスチック金型２に高圧圧縮
空気にてフッ素樹脂粉末７を噴射ノズル１１から噴射
し、フッ素樹脂の薄膜６を形成させた。Example 2 As shown in FIG. 1B, a fluororesin powder 7 was jetted from a jet nozzle 11 into a plastic mold 2 with high-pressure compressed air to form a fluororesin thin film 6.
【００１６】加工条件 加工圧力：５kg/cm2 加エノズル口径：φ７ｍｍ 金型サイズ：８０ｍｍ ×８０mm ×高さ７０mm フッ素樹脂材質：喜多村製ＫＴＬ３５０（ポリテトラフ
ルオロエチレン） フッ素樹脂平均粒径：３０μm 以上により約１μm のフッ素樹脂の薄膜を形成させ金型
の表面に離型性をもたせた。Processing conditions Processing pressure: 5 kg / cm 2 Processing nozzle diameter: φ7 mm Mold size: 80 mm × 80 mm × height 70 mm Fluororesin material: KTL350 (polytetrafluoroethylene) manufactured by Kitamura Fluororesin average particle diameter: 30 μm A fluororesin thin film having a thickness of about 1 μm was formed, and the surface of the mold was provided with mold release properties.
【図１】フッ素樹脂又はフッ素樹脂との共重合体樹脂の
薄膜形成工程を示す概略図。（Ａ）は、ガラス板を基材
としたもの、（Ｂ）は、金型。FIG. 1 is a schematic view showing a step of forming a thin film of a fluororesin or a copolymer resin with a fluororesin. (A) is a glass plate as a base material, (B) is a mold.
１ ガラス板 ２ プラスチック金型 ５ フッ素樹脂又はフッ素樹脂との共重合体樹脂の粉末
及び高圧ガスの混合流体 ６ フッ素樹脂又はフッ素樹脂との共重合体樹脂の薄膜 １１ 噴射ノズルREFERENCE SIGNS LIST 1 glass plate 2 plastic mold 5 fluororesin or mixed fluid of high-pressure gas and powder of copolymer resin with fluororesin 6 thin film of fluororesin or copolymer resin with fluororesin 11 spray nozzle
フロントページの続き Ｆターム(参考） 4D075 AA02 CA06 CA07 CA36 DA06 DA29 DB01 DB13 DB14 DB31 DC16 EA02 EB16 4K044 AA01 AA12 AA13 AA16 BA21 CA07 CA23 Continued on the front page F term (reference) 4D075 AA02 CA06 CA07 CA36 DA06 DA29 DB01 DB13 DB14 DB31 DC16 EA02 EB16 4K044 AA01 AA12 AA13 AA16 BA21 CA07 CA23
Claims (3)
素樹脂との共重合体樹脂の粉末を風速５０m/sec以上の
高圧ガスにて基材に噴射し、基材に、前記フッ素樹脂又
はフッ素樹脂との共重合体樹脂の粉末が衝突したことに
よる摩擦熱で、基材にフッ素樹脂の粉末の表面を溶着
し、膜厚５μm 以下の薄膜層を形成することを特徴とす
るフッ素樹脂又はフッ素樹脂との共重合体樹脂の薄膜皮
膜形成方法。1. A fluororesin having a particle diameter of 500 μm or less or a powder of a copolymer resin with a fluororesin is sprayed onto a substrate with a high-pressure gas having an air velocity of 50 m / sec or more, and the fluororesin or the fluororesin is sprayed on the substrate. Characterized in that the surface of the fluororesin powder is welded to the base material by frictional heat caused by the collision of the copolymer resin powder with the base resin to form a thin film layer having a thickness of 5 μm or less. And a method for forming a thin film of a copolymer resin.
する請求項１記載のフッ素樹脂又はフッ素樹脂との共重
合体樹脂の薄膜皮膜形成方法。2. The method for forming a thin film of a fluororesin or a copolymer resin with a fluororesin according to claim 1, wherein the fluororesin thin film layer on the substrate is heated and melted.
フッ素樹脂又はフッ素樹脂との共重合体樹脂の薄膜皮膜
形成方法。3. The method according to claim 2, wherein the substrate is a glass plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12304299A JP2000312858A (en) | 1999-04-28 | 1999-04-28 | Method for forming thin film of fluoroplastic or copolymer resin with fluoroplastic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12304299A JP2000312858A (en) | 1999-04-28 | 1999-04-28 | Method for forming thin film of fluoroplastic or copolymer resin with fluoroplastic |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000312858A true JP2000312858A (en) | 2000-11-14 |
Family
ID=14850781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12304299A Pending JP2000312858A (en) | 1999-04-28 | 1999-04-28 | Method for forming thin film of fluoroplastic or copolymer resin with fluoroplastic |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000312858A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009155699A (en) * | 2007-12-27 | 2009-07-16 | Okitsumo Kk | Method of forming lubricant coating of fluorine resin on surface of base |
-
1999
- 1999-04-28 JP JP12304299A patent/JP2000312858A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009155699A (en) * | 2007-12-27 | 2009-07-16 | Okitsumo Kk | Method of forming lubricant coating of fluorine resin on surface of base |
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