JPH1129736A - Primer composition for fluororesin - Google Patents
Primer composition for fluororesinInfo
- Publication number
- JPH1129736A JPH1129736A JP18203897A JP18203897A JPH1129736A JP H1129736 A JPH1129736 A JP H1129736A JP 18203897 A JP18203897 A JP 18203897A JP 18203897 A JP18203897 A JP 18203897A JP H1129736 A JPH1129736 A JP H1129736A
- Authority
- JP
- Japan
- Prior art keywords
- weight
- parts
- primer composition
- fluororesin
- precursor
- 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)
- Coating Of Shaped Articles Made Of Macromolecular Substances (AREA)
- Paints Or Removers (AREA)
Abstract
Description
【０００１】[0001]
【発明が属する技術分野】本発明は、塗布対象基材のブ
ラスト処理を必要とせずにフッ素樹脂をコーティングす
ることができるフッ素樹脂用プライマー組成物に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fluororesin primer composition capable of coating a fluororesin without requiring blasting of a substrate to be coated.
【０００２】[0002]
【従来の技術】フッ素樹脂は金属などの基材との接着性
が低く、剥離しやすいため、通常基材表面をブラスト処
理して粗面化し、表面を凸凹の状態にしてプライマー樹
脂を塗布し、その上にポリテトラフルオロエチレン（Ｐ
ＴＦＥ）ディスパージョン等を塗布し、焼き付けて被覆
していた。すなわち、前記ブラスト処理によって粗面化
した凸凹にフッ素樹脂をアンカー効果により密着させ、
接着性を上げていた。しかし、ブラスト処理などの粗面
化処理は工数がかかり、コストが高くなるという問題が
あった。また、ブラスト処理により粗面化された基材
は、塗布・焼成後の塗膜表面が粗いという問題もあっ
た。2. Description of the Related Art Fluororesin has low adhesiveness to a substrate such as a metal and is easily peeled off. Therefore, the surface of the substrate is usually blasted to roughen the surface, and the surface is made uneven to apply a primer resin. , And polytetrafluoroethylene (P
(TFE) dispersion or the like was applied and baked to cover. That is, the fluororesin is brought into close contact with the irregularities roughened by the blast treatment by an anchor effect,
The adhesiveness was raised. However, there is a problem that the surface roughening treatment such as the blast treatment requires a lot of man-hours and increases the cost. In addition, the substrate roughened by the blast treatment has a problem that the surface of the coating film after coating and baking is rough.
【０００３】前記の問題を解決するため、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（ＰＦＡ）とポリイミド樹脂とが７．５：２．５〜
６．５：３．５の重量比で配合されてなるプライマー組
成物が提案されている（特公平３−７２６７１号公
報）。また、ポリエーテルスルホン、ポリアミドイミド
及び／またはポリイミド、フッ素樹脂、及び金属粉末か
らなるプライマー組成物が提案されている（特開平６−
２６４０００号公報）In order to solve the above-mentioned problem, a tetrafluoroethylene-perfluoroalkylvinyl ether copolymer (PFA) and a polyimide resin are used in an amount of 7.5: 2.5 to 2.5.
A primer composition mixed at a weight ratio of 6.5: 3.5 has been proposed (Japanese Patent Publication No. 3-72671). Further, a primer composition comprising a polyether sulfone, a polyamideimide and / or a polyimide, a fluororesin, and a metal powder has been proposed (Japanese Unexamined Patent Publication (Kokai) No. Hei 6-1994).
No. 264000)
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、前記特
公平３−７２６７１号公報、及び特開平６−２６４００
０号公報等で提案されているプライマー組成物も、ブラ
スト処理無しでは、フッ素樹脂の付着性が乏しいという
問題があった。However, Japanese Patent Publication No. Hei 3-72671 and Japanese Patent Laid-Open Publication No. Hei 6-26400 have been disclosed.
The primer composition proposed in Japanese Patent Publication No. 0 and the like also has a problem that the adhesion of the fluororesin is poor without the blast treatment.
【０００５】本発明は、前記従来の問題を解決するた
め、プライマー組成物をさらに改善し、塗布対象基材の
ブラスト処理を必要とせずにフッ素樹脂をコーティング
することができるフッ素樹脂用プライマー組成物を提供
することを目的とする。The present invention solves the above-mentioned conventional problems by further improving the primer composition and coating the fluororesin without the need for blasting of the substrate to be coated. The purpose is to provide.
【０００６】[0006]
【課題を解決するための手段】前記目的を達成するた
め、本発明のフッ素樹脂用プライマー組成物は、ポリテ
トラフルオロエチレン（ＰＴＦＥ）１００重量部に対し
て、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（ＰＦＡ）３２〜１７３重量部、
ポリアミドイミドの前駆体４３〜６７重量部、ポリイミ
ドの前駆体４〜１４重量部を含む水分散液であることを
特徴とする。Means for Solving the Problems To achieve the above object, the fluororesin primer composition of the present invention comprises a tetrafluoroethylene-perfluoroalkylvinyl ether copolymer based on 100 parts by weight of polytetrafluoroethylene (PTFE). 32 to 173 parts by weight of a polymer (PFA),
It is an aqueous dispersion containing 43 to 67 parts by weight of a polyamideimide precursor and 4 to 14 parts by weight of a polyimide precursor.
【０００７】前記組成物においては、ポリテトラフルオ
ロエチレン（ＰＴＦＥ）４５重量部、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
（ＰＦＡ）２９重量部、ポリアミドイミドの前駆体２２
重量部、ポリイミドの前駆体４重量部を含むことが好ま
しい。In the above composition, 45 parts by weight of polytetrafluoroethylene (PTFE), 29 parts by weight of a tetrafluoroethylene-perfluoroalkylvinyl ether copolymer (PFA), a precursor of polyamideimide 22
It is preferable to include 4 parts by weight of the polyimide precursor.
【０００８】また前記組成物においては、ポリイミドの
前駆体が全芳香族系イミドの前駆体であることが好まし
い。また前記組成物においては、水分散液が、樹脂固形
分２５〜３５重量部に対して、水２５〜４５重量部、ジ
メチルホルムアミド（ＤＭＦ）１０〜２５重量部、界面
活性剤０．５〜１．５重量部の範囲であることが好まし
い。In the above composition, it is preferable that the precursor of the polyimide is a precursor of a wholly aromatic imide. Further, in the above composition, the aqueous dispersion contains 25 to 45 parts by weight of water, 10 to 25 parts by weight of dimethylformamide (DMF), and 0.5 to 1 part by weight of a surfactant based on 25 to 35 parts by weight of the resin solid content. It is preferably in the range of 0.5 parts by weight.
【０００９】また前記組成物においては、プライマー組
成物にさらに隠蔽材として無機物粉末を含むことが好ま
しい。前記無機物粉末としては、マイカ及びカーボンで
あることが好ましい。遮蔽効果に優れるからである。前
記無機物粉末は乾燥後固形物重量で、２〜５重量％添加
するのが好ましい。In the above composition, the primer composition preferably further contains an inorganic powder as a concealing material. The inorganic powder is preferably mica and carbon. This is because the shielding effect is excellent. The inorganic powder is preferably added in an amount of 2 to 5% by weight based on the weight of the solid after drying.
【００１０】[0010]
【発明の実施の形態】前記した本発明のフッ素樹脂用プ
ライマー組成物によれば、ポリテトラフルオロエチレン
（ＰＴＦＥ）１００重量部に対して、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
（ＰＦＡ）３２〜１７３重量部、ポリアミドイミドの前
駆体４３〜６７重量部、ポリイミドの前駆体４〜１４重
量部を含む水分散液であることにより、塗布対象基材の
ブラスト処理を必要とせずにフッ素樹脂をコーティング
することができるフッ素樹脂用プライマー組成物を実現
できる。前記プライマー組成物は、塗布対象基材、例え
ばアルミニウム基材にブラスト処理なしで塗布し乾燥
し、その表面にポリテトラフルオロエチレン（ＰＴＦ
Ｅ）等のフッ素樹脂ディスパージョンを塗布し乾燥し焼
き付け処理した場合、２４時間の煮沸処理後も付着性を
維持でき、また定着ロール用途で必要とされる耐シリコ
ンガス性にも優れている。DETAILED DESCRIPTION OF THE INVENTION According to the above-mentioned primer composition for a fluororesin of the present invention, 100 parts by weight of polytetrafluoroethylene (PTFE) is added to a tetrafluoroethylene-perfluoroalkylvinyl ether copolymer (PFA). By being an aqueous dispersion containing 32 to 173 parts by weight, 43 to 67 parts by weight of a precursor of polyamideimide, and 4 to 14 parts by weight of a precursor of polyimide, a fluororesin can be used without requiring blast treatment of a substrate to be coated. Can be realized. The primer composition is applied to a substrate to be applied, for example, an aluminum substrate without blasting and dried, and the surface thereof is polytetrafluoroethylene (PTF).
When a fluororesin dispersion such as E) is applied, dried and baked, the adhesiveness can be maintained even after boiling for 24 hours, and the silicon gas resistance required for a fixing roll is excellent.
【００１１】[0011]
【実施例】以下実施例を用いて本発明をさらに具体的に
説明する。以下の実施例、比較例においては「部」は
「重量部」を意味する。The present invention will be described more specifically with reference to the following examples. In the following Examples and Comparative Examples, “parts” means “parts by weight”.
【００１２】（実施例１）ダイキン工業社製ポリテトラ
フルオロエチレン（ＰＴＦＥ）４５重量部、同社製テト
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（ＰＦＡ）２９重量部、ポリアミドイミド
の前駆体２２重量部、東芝ケミカル社製「ケミタイトＣ
Ｔ４１５０」（商品名）直鎖型全芳香族ポリイミドの前
駆体４重量部に、ジメチルホルムアミド（ＤＭＦ）３０
重量部、精製水２０重量部、ノニオン系界面活性剤（ト
リトンＸ−１００：商品名）０．８重量部を加え、ボー
ルミルで１２時間粉砕処理した。これにより水分散液
（ティスパージョン）を得た。(Example 1) 45 parts by weight of polytetrafluoroethylene (PTFE) manufactured by Daikin Industries, 29 parts by weight of tetrafluoroethylene-perfluoroalkylvinyl ether copolymer (PFA) manufactured by Daikin Industries, 22 parts by weight of a precursor of polyamideimide "Chemiteite C" manufactured by Toshiba Chemical Corporation
T4150 ”(trade name) dimethylformamide (DMF) 30
Parts by weight, 20 parts by weight of purified water, and 0.8 parts by weight of a nonionic surfactant (Triton X-100: trade name) were added, and the mixture was pulverized with a ball mill for 12 hours. In this way, an aqueous dispersion (tisspension) was obtained.
【００１３】前記で得られた水分散液（ティスパージョ
ン）を、ブラスト処理なしのアルミニウム板（ただし３
８０℃で３０分間空焼きし脱脂した）に、乾燥重量で
０．０３ｇ／ｃｍ2 の厚さに塗布し、１００℃で１０分
間乾燥した。[0013] The aqueous dispersion (tisspurge) obtained above was applied to an aluminum plate without blast treatment (3
(Dry baking at 80 ° C. for 30 minutes) to a thickness of 0.03 g / cm 2 on a dry weight basis, and dried at 100 ° C. for 10 minutes.
【００１４】その後、ダイキン工業社製ポリテトラフル
オロエチレン（Ｔ−４１０１）ディスパージョンを乾燥
重量で０．０４ｇ／ｃｍ2 の厚さに塗布し、３８０℃で
２０分間焼成した。サンプル数は１０個とした。Thereafter, a polytetrafluoroethylene (T-4101) dispersion manufactured by Daikin Industries, Ltd. was applied to a thickness of 0.04 g / cm 2 by dry weight, and baked at 380 ° C. for 20 minutes. The number of samples was 10.
【００１５】得られたフッ素樹脂コーティング物体の初
期付着性は１０点であり、２４時間の熱水煮沸後の付着
性も１０点であった。前記の付着製試験は、ＪＩＳ Ｋ
５４００−８−５−２に順じて測定した。The resulting fluororesin-coated article had an initial adhesion of 10 points and an adhesion after boiling for 24 hours of hot water of 10 points. The adhesion test was conducted according to JIS K
It measured according to 5400-8-5-2.
【００１６】又、２００℃における硬さ試験はＢであっ
た。前記の硬さ試験は、ＪＩＳ Ｋ５４０１に順じて測
定した。 （実施例２）実施例１と同様にして、ポリテトラフルオ
ロエチレン（ＰＴＦＥ）１００重量部に対して、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（ＰＦＡ）と、ポリアミドイミド（ＰＡＩ）
とポリイミド（ＰＩ）の組成比を変えて実験を行った。
組成比の条件と結果を下記する。The hardness test at 200 ° C. was B. The hardness test was measured according to JIS K5401. (Example 2) In the same manner as in Example 1, 100 parts by weight of polytetrafluoroethylene (PTFE) and tetrafluoroethylene-perfluoroalkylvinyl ether copolymer (PFA) and polyamideimide (PAI) were used.
The experiment was performed by changing the composition ratio of polyimide and polyimide (PI).
The conditions and results of the composition ratio are described below.
【００１７】[0017]
【表１】 [Table 1]
【００１８】（比較例１〜２）プライマー成分をデュポ
ン社製853-023（商品名）及び三井石油化学社製（商品
名ポリイミドのケルイミド６０１）に変えた以外は実施
例１と同様に実験を行った。結果を実施例１とともに表
２にまとめて示す。(Comparative Examples 1 and 2) An experiment was carried out in the same manner as in Example 1 except that the primer components were changed to DuPont 853-023 (trade name) and Mitsui Petrochemical Co. (trade name polyimide Kelimide 601). went. Table 2 shows the results together with Example 1.
【００１９】[0019]
【表２】 [Table 2]
【００２０】以上から明らかな通り、本発明の実施例品
は、塗布対象基材のブラスト処理を必要とせずにフッ素
樹脂を強固にコーティングすることができた。As is clear from the above, the products of Examples of the present invention were able to firmly coat the fluororesin without requiring blasting of the substrate to be coated.
【００２１】[0021]
【発明の効果】以上説明した通り、本発明によれば、ポ
リテトラフルオロエチレン（ＰＴＦＥ）１００重量部に
対して、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（ＰＦＡ）３２〜１７３重量
部、ポリアミドイミドの前駆体４３〜６７重量部、ポリ
イミドの前駆体４〜１４重量部を含む水分散液からなる
プライマー組成物としたことにより、塗布対象基材のブ
ラスト処理を必要とせずにフッ素樹脂を強固にコーティ
ングすることができる。As described above, according to the present invention, 32-173 parts by weight of tetrafluoroethylene-perfluoroalkylvinyl ether copolymer (PFA) is added to 100 parts by weight of polytetrafluoroethylene (PTFE). By using a primer composition composed of an aqueous dispersion containing 43 to 67 parts by weight of a precursor of polyamideimide and 4 to 14 parts by weight of a precursor of polyimide, a fluororesin can be used without requiring blast treatment of a substrate to be coated. Can be coated firmly.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 ＦＩ // Ｂ０５Ｄ 7/24 ３０２ Ｂ０５Ｄ 7/24 ３０２Ｌ (Ｃ０９Ｄ 127/18 179:08） ──────────────────────────────────────────────────の Continued on front page (51) Int.Cl. 6 Identification code FI // B05D 7/24 302 B05D 7/24 302L (C09D 127/18 179: 08)
Claims (6)
Ｅ）１００重量部に対して、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（ＰＦ
Ａ）３２〜１７３重量部、ポリアミドイミドの前駆体４
３〜６７重量部、ポリイミドの前駆体４〜１４重量部を
含む水分散液であるフッ素樹脂用プライマー組成物。1. Polytetrafluoroethylene (PTF)
E) 100 parts by weight of tetrafluoroethylene-
Perfluoroalkyl vinyl ether copolymer (PF
A) 32 to 173 parts by weight of a polyamide imide precursor 4
A primer composition for a fluororesin, which is an aqueous dispersion containing 3 to 67 parts by weight and 4 to 14 parts by weight of a polyimide precursor.
Ｅ）４５重量部、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（ＰＦＡ）２９重量
部、ポリアミドイミドの前駆体２２重量部、ポリイミド
の前駆体４重量部を含む請求項１に記載のフッ素樹脂用
プライマー組成物。2. Polytetrafluoroethylene (PTF)
2. The fluororesin according to claim 1, comprising: E) 45 parts by weight, 29 parts by weight of a tetrafluoroethylene-perfluoroalkylvinyl ether copolymer (PFA), 22 parts by weight of a polyamideimide precursor, and 4 parts by weight of a polyimide precursor. Primer composition.
の前駆体である請求項１に記載のフッ素樹脂用プライマ
ー組成物。3. The fluororesin primer composition according to claim 1, wherein the polyimide precursor is a wholly aromatic imide precursor.
部に対して、水２５〜４５重量部、ジメチルホルムアミ
ド（ＤＭＦ）１０〜２５重量部、界面活性剤０．５〜
１．５重量部の範囲である請求項１に記載のフッ素樹脂
用プライマー組成物。4. An aqueous dispersion comprising 25 to 45 parts by weight of water, 10 to 25 parts by weight of dimethylformamide (DMF), and 0.5 to 25 parts by weight of a surfactant, based on 25 to 35 parts by weight of a resin solid content.
The fluororesin primer composition according to claim 1, wherein the amount is 1.5 parts by weight.
無機物粉末を含む請求項１に記載のフッ素樹脂用プライ
マー組成物。5. The fluororesin primer composition according to claim 1, wherein the primer composition further comprises an inorganic powder as a masking material.
請求項５に記載のフッ素樹脂用プライマー組成物。6. The fluororesin primer composition according to claim 5, wherein the inorganic powder is mica and carbon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18203897A JPH1129736A (en) | 1997-07-08 | 1997-07-08 | Primer composition for fluororesin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18203897A JPH1129736A (en) | 1997-07-08 | 1997-07-08 | Primer composition for fluororesin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH1129736A true JPH1129736A (en) | 1999-02-02 |
Family
ID=16111260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18203897A Pending JPH1129736A (en) | 1997-07-08 | 1997-07-08 | Primer composition for fluororesin |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH1129736A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011118827A1 (en) | 2010-03-25 | 2011-09-29 | 日本フッソ工業株式会社 | Coating composition, method for manufacturing film using the same, and coated body using the same |
| JP2016020488A (en) * | 2014-06-17 | 2016-02-04 | 東邦化成株式会社 | Fluorine resin-containing aqueous polyimide precursor composition, laminate using the same, printed circuit board, and method for producing the laminate |
| JP2017071686A (en) * | 2015-10-07 | 2017-04-13 | 株式会社森清化工 | Perfluoro rubber molding |
| RU2759366C1 (en) * | 2018-05-30 | 2021-11-12 | ДжФЕ СТИЛ КОРПОРЕЙШН | Electrical steel sheet having insulating coating, method for obtaining this sheet, transformer core and transformer in which electrical steel sheet is used, and method for reducing dielectric losses in transformer |
-
1997
- 1997-07-08 JP JP18203897A patent/JPH1129736A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011118827A1 (en) | 2010-03-25 | 2011-09-29 | 日本フッソ工業株式会社 | Coating composition, method for manufacturing film using the same, and coated body using the same |
| US10435581B2 (en) | 2010-03-25 | 2019-10-08 | Nippon Fusso Co., Ltd. | Coating composition, method for manufacturing film using the same, and coated article using the same |
| JP2016020488A (en) * | 2014-06-17 | 2016-02-04 | 東邦化成株式会社 | Fluorine resin-containing aqueous polyimide precursor composition, laminate using the same, printed circuit board, and method for producing the laminate |
| JP2017071686A (en) * | 2015-10-07 | 2017-04-13 | 株式会社森清化工 | Perfluoro rubber molding |
| RU2759366C1 (en) * | 2018-05-30 | 2021-11-12 | ДжФЕ СТИЛ КОРПОРЕЙШН | Electrical steel sheet having insulating coating, method for obtaining this sheet, transformer core and transformer in which electrical steel sheet is used, and method for reducing dielectric losses in transformer |
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