JPS62174387A - Surface treatment of stainless steel - Google Patents
Surface treatment of stainless steelInfo
- Publication number
- JPS62174387A JPS62174387A JP61014669A JP1466986A JPS62174387A JP S62174387 A JPS62174387 A JP S62174387A JP 61014669 A JP61014669 A JP 61014669A JP 1466986 A JP1466986 A JP 1466986A JP S62174387 A JPS62174387 A JP S62174387A
- Authority
- JP
- Japan
- Prior art keywords
- stainless steel
- adhesion
- silane coupling
- fluororesin
- coupling agent
- 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.)
- Granted
Links
- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 42
- 239000010935 stainless steel Substances 0.000 title claims abstract description 42
- 238000004381 surface treatment Methods 0.000 title claims abstract description 8
- 238000000576 coating method Methods 0.000 claims abstract description 41
- 239000011248 coating agent Substances 0.000 claims abstract description 35
- 239000006087 Silane Coupling Agent Substances 0.000 claims abstract description 18
- 125000003277 amino group Chemical group 0.000 claims abstract description 17
- 229910052751 metal Inorganic materials 0.000 claims description 14
- 239000002184 metal Substances 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 12
- 239000003973 paint Substances 0.000 abstract description 26
- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical compound CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 abstract description 5
- 239000002904 solvent Substances 0.000 abstract description 5
- 229910000831 Steel Inorganic materials 0.000 abstract 2
- 239000000853 adhesive Substances 0.000 abstract 2
- 230000001070 adhesive effect Effects 0.000 abstract 2
- 239000010959 steel Substances 0.000 abstract 2
- KRVSOGSZCMJSLX-UHFFFAOYSA-L chromic acid Substances O[Cr](O)(=O)=O KRVSOGSZCMJSLX-UHFFFAOYSA-L 0.000 abstract 1
- AWJWCTOOIBYHON-UHFFFAOYSA-N furo[3,4-b]pyrazine-5,7-dione Chemical compound C1=CN=C2C(=O)OC(=O)C2=N1 AWJWCTOOIBYHON-UHFFFAOYSA-N 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 239000002585 base Substances 0.000 description 4
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical compound [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000003373 anti-fouling effect Effects 0.000 description 2
- 238000005422 blasting Methods 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000011651 chromium Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 239000008367 deionised water Substances 0.000 description 2
- 229910021641 deionized water Inorganic materials 0.000 description 2
- 238000007865 diluting Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 238000007788 roughening Methods 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 229910052910 alkali metal silicate Inorganic materials 0.000 description 1
- 229910000963 austenitic stainless steel Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000013527 degreasing agent Substances 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 229910000734 martensite Inorganic materials 0.000 description 1
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000002436 steel type Substances 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- UKRDPEFKFJNXQM-UHFFFAOYSA-N vinylsilane Chemical class [SiH3]C=C UKRDPEFKFJNXQM-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
- B05D7/16—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies using synthetic lacquers or varnishes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/10—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by other chemical means
- B05D3/102—Pretreatment of metallic substrates
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Chemical Treatment Of Metals (AREA)
- Paints Or Removers (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、ステンレス鋼の金属表面にフッ素系樹脂塗膜
を形成する際の塗膜の密着性を向上せしめる金属の表面
処理方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a metal surface treatment method for improving the adhesion of a fluororesin coating film when forming a fluororesin coating film on the metal surface of stainless steel.
従来、ステンレス鋼はそれ自体耐蝕性並びに意匠外観が
良好であり、一方ステンレス鋼に対しては塗膜の密着性
が良くないために、ステンレス鋼表面にはほとんど塗装
が施されていなかった。しかしながらステンレス鋼の使
用分野の拡大と共に、更に耐蝕性の向上、意匠外観の向
上並びに他の機能を目的に塗膜を施すことが近年要求さ
れる様になって来た。これらの要求に対して、ステンレ
ス鋼の塗装としてはフッ素系樹脂塗膜の適用が特に注目
されている。例えばフッ素系樹脂塗膜の高耐候性並びに
耐汚染性などから建築物の外壁材に、又摩擦係数が低い
点から積雪地帯の屋根材として利用が検討されつつある
。しかしながらステンレス鋼の金属表面は化学的に極め
て安定であるために、塗膜の密着性は劣り、特にフッ素
系樹脂塗膜の密着性は悪い。ステンレス鋼の金属表面に
対する塗膜密着性を向上せしめる方法としては、ショツ
トブラストやヘアライン加工などの、物理的に金属表面
を粗くする方法が行われているが、これでは塗膜密着性
は十分ではない。又クロム酸塩を主体とした被膜も塗装
下地剤として知られているが、クロム酸塩の毒性による
作業衛生上の問題を鑑みると、好ましい処理方法とはい
えない。Conventionally, stainless steel itself has good corrosion resistance and a good design appearance, but on the other hand, the adhesion of paint films to stainless steel is poor, so the surface of stainless steel has rarely been painted. However, as the field of use of stainless steel has expanded, there has been a recent demand for coatings to further improve corrosion resistance, improve design appearance, and provide other functions. In response to these demands, fluororesin coatings are attracting particular attention as coatings for stainless steel. For example, fluororesin coatings are being considered for use as exterior wall materials for buildings due to their high weather resistance and stain resistance, and as roofing materials in snowy regions due to their low coefficient of friction. However, since the metal surface of stainless steel is chemically extremely stable, the adhesion of the coating film is poor, especially the adhesion of the fluororesin coating film. Methods to improve the adhesion of paint films to stainless steel metal surfaces include physically roughening the metal surface, such as shot blasting and hairline processing, but these methods do not provide sufficient adhesion of the paint film. do not have. A coating mainly composed of chromate is also known as a paint base agent, but this is not a preferable treatment method in view of the work hygiene problems caused by the toxicity of chromate.
′〔発−明が解決しようとする問題点〕本発明は前記の
欠点を解決して、ステンレス鋼の金属表面に密着性の優
れた塗膜を形成させる方法に関する。更に詳しくはステ
ンレス鋼の表面外観をほとんど変えることなく、塗膜の
密着性、特にフッ素系樹脂塗膜の密着性を向上せしめ、
フッ素系樹脂塗膜が有する高耐候性、防汚性、滑り性お
よびその他の機能を有する塗膜をステンレス鋼の金属表
面に形成させることを目的としている。[Problems to be Solved by the Invention] The present invention relates to a method for solving the above-mentioned drawbacks and forming a coating film with excellent adhesion on the metal surface of stainless steel. More specifically, it improves the adhesion of paint films, especially the adhesion of fluorine resin paint films, without changing the surface appearance of stainless steel.
The objective is to form a coating film on the metal surface of stainless steel that has the high weather resistance, antifouling properties, slipperiness, and other functions that fluororesin coating films have.
本発明はステンレス鋼の金属表面にフッ素系樹脂塗膜を
形成するに際し、ステンレス鋼の金属表面にアミノ基を
有するシランカプリング剤を１〜５００■／、（１好ま
しくは３〜５０■／ポ塗布することによって、フッ素系
樹脂塗膜の密着性を向上せしめることを特徴とするステ
ンレス鋼の表面処理方法である。以下本発明を詳述する
。In the present invention, when forming a fluororesin coating film on the metal surface of stainless steel, a silane coupling agent having an amino group is applied to the metal surface of stainless steel at a rate of 1 to 500 μ/p, preferably 3 to 50 μ/p. This is a method for surface treatment of stainless steel, which is characterized by improving the adhesion of a fluororesin coating film.The present invention will be described in detail below.
本発明を適用するステンレス鋼は特に鋼種を限定するも
のではなく、クロムを約１０重量％以上含有する各種の
マルテンサイト系、フェライト系。The stainless steel to which the present invention is applied is not particularly limited to steel types, and may include various martensitic and ferritic types containing about 10% by weight or more of chromium.
及びオーステナイト系のステンレス鋼に適用できる。本
発明で用いるアミノ基を有するシランカプリング剤とし
ては、
Ｈｚ Ｎ Ｃｚ Ｈ４Ｎ ＨＣ３Ｈｂ Ｓ ｉ （ＯＣ
Ｈ３） ３ＨｔＮＣ２Ｈ４ＮＨＣ３Ｈ６Ｓｉ（ＣＨ：１
）（ＯＣＨ３）ＺＨｚＮＣｚＨ６Ｓｉ（ＯＣｚＨｓ）ｉ
などを用いることが出来る。他のビニルシラン。and austenitic stainless steel. As the silane coupling agent having an amino group used in the present invention, Hz N Cz H4N HC3Hb Si (OC
H3) 3HtNC2H4NHC3H6Si(CH:1
)(OCH3)ZHzNCzH6Si(OCzHs)i, etc. can be used. other vinylsilanes.
メタクリコシラン。エポキシシランなどのシランカプリ
ング剤も塗膜の密着性の向上には寄与するが、フッ素系
樹脂塗膜のステンレス鋼への密着性向上にはアミン基を
有するシランカプリング剤が最適である。アミン基を有
するシランカプリング剤の塗布方法は、浸漬、スプレー
、静電、ロール、刷毛などによって塗布することが出来
る。アミノ基を有するシランカプリング剤の塗布量は１
〜５００ｍｇ／ｎ？好ましくは３〜５０ｍｇ／ｍである
。Methacricosilane. Silane coupling agents such as epoxy silane also contribute to improving the adhesion of paint films, but silane coupling agents with amine groups are optimal for improving the adhesion of fluororesin paint films to stainless steel. The amine group-containing silane coupling agent can be applied by dipping, spraying, electrostatic, roll, brush, or the like. The coating amount of the silane coupling agent having an amino group is 1
~500mg/n? Preferably it is 3 to 50 mg/m.
１■／イ以下、および５００■／ｄ以上では、塗膜の密
着性の効果が十分発揮出来ない。５００■／ｒ＋（以上
ではかえって塗膜の密着性を低減せしめる場合もある。If it is less than 1 .mu./d or more than 500 .mu./d, the adhesion effect of the coating film cannot be sufficiently exhibited. 500 .mu./r+ (more than 500 .mu./r+ may actually reduce the adhesion of the coating film.
１〜５００■／ｄの塗布量を均一に塗布するためには、
溶媒で希釈して塗布するが、希釈の程度としては、溶媒
希釈液として１〜５ｇ／ｒｒｆ以上塗布し、その後乾燥
することによって所定の量の均一な皮膜を形成させれば
よい。アミノ基を有するシランカプリング剤を含有する
塗布溶液の乾燥は、溶媒が除去されれば良く、溶媒の種
類によっては自然乾燥でも良いが、通常８０〜２００°
Ｃで１０秒〜３分保つのが作業上有利である。アミン基
を有するシランカプリング剤を塗布するステンレス鋼の
金属表面は、予じめ脱脂洗浄した清浄なものを用いる必
要がある。本発明に適用するフッ素系樹脂塗膜は、市販
されている種々の目的に適した塗料を用いることが出来
、特に限定するものではない。父子じめフィルム状にし
たフッ素系樹脂皮膜の貼着の場合にも適用が可能である
。In order to uniformly apply a coating amount of 1 to 500 ■/d,
The coating is applied after being diluted with a solvent, and the degree of dilution may be such that a uniform film of a predetermined amount is formed by applying the solvent diluted solution at a rate of 1 to 5 g/rrf or more and then drying. The coating solution containing the silane coupling agent having an amino group may be dried as long as the solvent is removed, and depending on the type of solvent, natural drying may be used, but usually at 80 to 200°C.
It is advantageous to hold the temperature at C for 10 seconds to 3 minutes. The stainless steel metal surface to which the amine group-containing silane coupling agent is applied must be clean and degreased in advance. The fluororesin coating film applied to the present invention is not particularly limited, and commercially available coatings suitable for various purposes can be used. It can also be applied to the case of adhering a fluororesin film in the form of a parent-child film.
尚アミノ基を存するシランカプリング剤はフッ素系樹脂
塗料以外の汎用塗料の場合に適用することも可能である
。The silane coupling agent containing an amino group can also be applied to general-purpose paints other than fluororesin paints.
１、第１表の１〜５は、ステンレス鋼の表面にフッ素系
樹脂塗膜を形成するに際して、本発明のアミノ基を有す
るシランカプリング剤を使用した場合の塗膜密着性を示
したものである。ステンレス鋼にはヘアライン表面加工
を施したＪＩＳ、ＳＵＳ ３０４を強アルカリシリケー
ト系脱脂剤にて表面を清浄にし水洗乾燥したものを用い
た。アミノ基を有するシランカプリング剤としては、γ
−アミノプロピルトリエトキシシラン（１１□ＮＣ＋Ｉ
ＴｏＳｉ（ＯＣｚｌｌｓ） ｚ１１重量部を、エタノー
ル１重■％含存する水９９重置部に溶解した溶液を用い
た。ステンレス鋼は該溶液に浸漬し、該溶液を約１．５
ｇ／ ％表面に塗布し熱風循環式オープンにて１３０
°Ｃで３分間乾燥し約１５＋ｗ／ｍのγ−アミノプロピ
ルトリエトキシシランをステンレス鋼の金属表面に均一
に塗布した後、第１表のＡ−Ｅに示す市販フッ素系樹脂
塗料を用いて塗装を行った。市販フッ素系樹脂塗料Ａ−
Ｅは、商品名（含登録商標）デュラナー。1. Tables 1 to 5 in Table 1 show the film adhesion when the silane coupling agent having an amino group of the present invention is used to form a fluororesin film on the surface of stainless steel. be. The stainless steel used was JIS or SUS 304 with hairline surface treatment, the surface of which was cleaned with a strong alkali silicate degreaser, washed with water and dried. As a silane coupling agent having an amino group, γ
-aminopropyltriethoxysilane (11□NC+I
A solution was used in which 11 parts by weight of ToSi(OCzlls) z was dissolved in 99 parts by weight of water containing 1% by weight of ethanol. The stainless steel is immersed in the solution and the solution is heated to about 1.5
g/% 130 when applied to the surface and heated with hot air circulation
After drying at °C for 3 minutes and uniformly applying approximately 15+w/m of γ-aminopropyltriethoxysilane to the stainless steel metal surface, paint using a commercially available fluororesin paint shown in Table 1 A-E. I did it. Commercially available fluororesin paint A-
E is the product name (including registered trademark) Duranar.
フロロボン、デュフナー、■フ【コン、ニューガーメソ
ト（以上はＡ−Ｅとの対応順序はない）の樹脂である。The resins are Fluorobone, Dufner, ■Fukon, and Newgar Mesotho (the above are not in any order of correspondence with A-E).
フッ素系樹脂塗料の塗装はバーコード法で行ない、塗膜
形成条件は各々の塗料の仕様にもとすく標準条件にて行
った。The fluororesin paint was applied using the barcode method, and the coating film formation conditions were set to standard conditions according to the specifications of each paint.
第１表の■〜■は比較例で、本発明のアミノ基を有する
シランカプリング剤を使用することな（、その他の条件
は第１表の１〜５と同一に保ち、ステンレス鋼の表面に
フッ素系樹脂塗膜を形成した際の塗膜密着性を示したも
のである。第１表から明かな如く、比較例■〜■に比べ
、本発明のアミン基を有するシランカプリング剤を使用
することにより、１〜５に示す如く、同一塗料ではそれ
ぞれ塗膜密着性の優れたフッ素系樹脂塗膜をステンレス
鋼の表面に形成することができた。■ to ■ in Table 1 are comparative examples in which the silane coupling agent having an amino group of the present invention was not used (the other conditions were kept the same as 1 to 5 in Table 1, and the surface of stainless steel was This figure shows the adhesion of a fluororesin coating when a fluororesin coating was formed.As is clear from Table 1, compared to Comparative Examples ① to ②, the silane coupling agent having an amine group of the present invention was used. As a result, as shown in Examples 1 to 5, a fluororesin coating film with excellent film adhesion could be formed on the surface of stainless steel using the same paint.
第１表で、初期塗膜密着性とは、塗装板を作成後室内に
１週間放置した後で塗膜密着性試験を行ったもので、沸
水浸清後の密着性とは、塗装板を沸騰脱イオン水に１時
間浸漬後直ちに密着性試験を行ったもので、温水浸漬後
の密着性とは、４０℃の脱イオン水に２０日間浸漬後直
ちに密着性試験を行ったものである。又第１表で基ｉ目
とは、塗装板に１１１１角の基盤目を１００ （ＩｌＪ
、 カッターナイフで素地に達する迄の傷を入れた後に
セ［１テープを塗面に貼着後剥離し、（剥離後も残存し
た塗膜基盤目の数）／（１００個）で表示した塗膜密着
性であり、基盤目エリクセンとば、基盤目と同じ方法で
基盤目傷を入れた塗装板を、エリクセン試験機にて５鰭
押出した試験片にって、上記の基盤目と同じ方法でセロ
テープを貼着、剥離しく剥離後も残存した塗膜基盤目の
数） ／ （１００個）で表示した塗膜密着性である。In Table 1, the initial paint film adhesion refers to the paint film adhesion test conducted after the painted board was left indoors for one week after preparation, and the adhesion after boiling water immersion refers to the paint film adhesion test after the painted board was left indoors for one week. An adhesion test was conducted immediately after being immersed in boiling deionized water for 1 hour, and the adhesion test after being immersed in hot water was conducted immediately after being immersed in deionized water at 40° C. for 20 days. In Table 1, the i-th base means 100 (IlJ
, After making a scratch with a cutter knife until it reaches the substrate, apply one tape to the painted surface and peel it off, and then remove the paint surface, which is expressed as (number of paint film base marks remaining after peeling)/(100 pieces). The film adhesion was determined using the same method as for the substrate, and a test piece was obtained by extruding 5 fins using an Erichsen tester from a painted plate with substrate scratches made in the same manner as for the substrate. The adhesiveness of the coating film is expressed as the number of coating film base lines that remained after the adhesive tape was applied and peeled off/(100 pieces).
２、第１表の■は、第１表の１〜５で用いたＴ−アミノ
プロピルトリエトキシシラン
希釈して、１〜５と同じ方法で、約０． ５ ｕｇ ／
ｎｒ Ｏ）γーアミノプロピルトリエトキシシランが
ステンレス鋼表面に均一に塗布されるように塗布し、そ
の他の条件は第１表の４と同一に保ち、ステンレス鋼の
表面にフッ素系樹脂塗膜１〕を形成させた後、密着性試
験を行ったものである。ごの場合の９ミ膜密着性は第１
表の■とほぼ同じレヘルであり、従ってし■／，（以下
のγーアミノプロピルトリエトキシシランの塗布量では
、塗膜密着性を改善する効果は小さい。2. ■ in Table 1 is obtained by diluting the T-aminopropyltriethoxysilane used in 1 to 5 of Table 1 in the same manner as in 1 to 5 to approximately 0. 5ug/
nr O) Apply γ-aminopropyltriethoxysilane so that it is uniformly applied to the stainless steel surface, keep the other conditions the same as 4 in Table 1, and apply the fluororesin coating film 1 on the stainless steel surface. ] was formed, and then an adhesion test was conducted. In this case, the adhesion of the 9mm film was the first.
The level is almost the same as ■ in the table, and therefore, ■■ / (with the following coating amount of γ-aminopropyltriethoxysilane, the effect of improving coating film adhesion is small.
３、 第１表の■は、Ｔ−アミノプロピルトリエトキシ
シランの溶液を用いて、約６００ｍｇ／ｒｒｆのＴ−ア
ミノプロピルトリエトキシシランをステンレス網の表面
に均一に塗布し、その他の条件は第１表の４と同一に保
ち、ステンレス鋼の表面にフッ素系樹脂塗膜りを形成さ
せた後、密着性試験を行った結果であるが、γーアミノ
プロピルトリエトキシシランの塗布量が５００ｎｇ／ｒ
４を超えると、■よりも若干性能が低い結果を示し塗膜
密着性を改善する効果は小さい。3. In Table 1, ■ indicates that approximately 600 mg/rrf of T-aminopropyltriethoxysilane is applied uniformly to the surface of the stainless steel mesh using a solution of T-aminopropyltriethoxysilane. The results were obtained by conducting an adhesion test after forming a fluororesin coating on the surface of stainless steel, keeping the same conditions as in 4 in Table 1. r
If it exceeds 4, the performance will be slightly lower than that of ■, and the effect of improving coating film adhesion will be small.
・１． 第１表の１〜５で用いたと同じ清浄にしたステ
ンレス鋼の表面に、シリカ含有クロメート皮膜処理剤（
登録商標ボンデライｌ−１４１５Ａ、日本パー力ライジ
ング）を１００ｇ／βの割合で水に希釈した溶液を塗布
し、熱風循環式オーブンに“Ｃ１３０°ｃ， ２分間
乾燥し、クロムイ・１着星が３０１喀／ｄの皮膜を得た
。更に第１表の４で用いたＩ）２料を用い、第１表の４
と同じ方法で塗膜を形成させた後、密着性試験を行った
結果を第１表の■で示した。第１表に示す如く、第１表
の４は、クロム系処理剤を用いた第１表の■とほば同様
の性能であった。・1. A silica-containing chromate film treatment agent (
A solution prepared by diluting Bonderai l-1415A (registered trademark, Japan Parriki Rising) in water at a ratio of 100g/β was applied, and dried in a hot air circulation oven at 130°C for 2 minutes. A film of /d was obtained.Additionally, using the material I) 2 used in 4 of Table 1, 4 of Table 1 was obtained.
After forming a coating film in the same manner as above, an adhesion test was conducted, and the results are shown in Table 1 (■). As shown in Table 1, Sample 4 in Table 1 had almost the same performance as ■ in Table 1 using a chromium-based treatment agent.
以上説明した如く、ステンレス鋼の金属表面にフッ素樹
脂塗膜を形成するに際し、アミノ基を有するシランカプ
リング剤を適量使用する事により、塗膜の密着強度を大
巾に高める事ができ、これによりステンレス鋼の表面外
観をほとんど変えることなく、フッ素系樹脂塗膜が有す
る優れた耐候性、防汚性、滑り性の塗膜が、強い密着性
で形成された塗装ステンレス鋼板を製造する事が可能と
なった。尚実施例ではヘアライン仕上のステンレス鋼の
例を示したが、本発明はヘアライン仕上に限定されるも
のではなく、光輝焼鈍仕上のステンレス鋼等でも塗装密
着性を大巾に改善するものであり、従って光沢の優れた
着色塗装ステンレス鋼の製造も可能であり、ステンレス
鋼の適用される意匠の範囲の拡大にも極めて有益である
。又本発明の方法によると、従来塗装密着性を高めるた
めに行っていたステンレス鋼の表面を研摩やショツトブ
ラストで粗くする作業も軽減又は省略化できるために、
建築物の外壁や屋根材等の製造工程を合理化する事がで
きる。本発明の方法は又クロム酸塩等を使用しないため
、作業衛生上の格別の配慮を要しないために簡易に実施
することができる。As explained above, when forming a fluororesin coating film on the metal surface of stainless steel, the adhesion strength of the coating film can be greatly increased by using an appropriate amount of a silane coupling agent having an amino group. It is possible to produce coated stainless steel sheets that have strong adhesion with the excellent weather resistance, antifouling, and slippery properties of fluororesin coatings, without changing the surface appearance of the stainless steel. It became. Although the example shows an example of stainless steel with a hairline finish, the present invention is not limited to a hairline finish, and can greatly improve paint adhesion even with bright annealed stainless steel, etc. Therefore, it is possible to manufacture colored coated stainless steel with excellent gloss, and it is extremely useful for expanding the range of designs to which stainless steel can be applied. Furthermore, according to the method of the present invention, the work of roughening the surface of stainless steel by polishing or shot blasting, which was conventionally performed to improve paint adhesion, can be reduced or omitted.
It is possible to streamline the manufacturing process for building exterior walls and roofing materials. Furthermore, since the method of the present invention does not use chromate or the like, it does not require special consideration in terms of work hygiene and can be easily carried out.
Claims (1)
するに際し、ステンレス鋼の金属表面にアミノ基を有す
るシランカプリング剤を１〜５００ｍｇ／ｍ＾２塗布す
ることによって、フッ素系樹脂塗膜の密着性を向上せし
めることを特徴とするステンレス鋼の表面処理方法。 ２、アミノ基を有するシランカプリング剤の塗布量が３
〜５０ｍｇ／ｍ＾２である特許請求の範囲第１項記載の
ステンレス鋼の表面処理方法。[Claims] 1. When forming a fluororesin coating film on the metal surface of stainless steel, by applying 1 to 500 mg/m^2 of a silane coupling agent having an amino group to the metal surface of stainless steel, A stainless steel surface treatment method characterized by improving the adhesion of a fluororesin coating. 2. The coating amount of the silane coupling agent having an amino group is 3.
The method for surface treatment of stainless steel according to claim 1, wherein the surface treatment amount is 50 mg/m^2.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61014669A JPH0657872B2 (en) | 1986-01-28 | 1986-01-28 | Surface treatment method for stainless steel |
| DE19873702141 DE3702141A1 (en) | 1986-01-28 | 1987-01-24 | METHOD FOR APPLYING FLUOROCOLINE RESIN TO STAINLESS STEEL |
| EP87100986A EP0231001A1 (en) | 1986-01-28 | 1987-01-24 | Method of applying fluorocarbon resins to stainless steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61014669A JPH0657872B2 (en) | 1986-01-28 | 1986-01-28 | Surface treatment method for stainless steel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62174387A true JPS62174387A (en) | 1987-07-31 |
| JPH0657872B2 JPH0657872B2 (en) | 1994-08-03 |
Family
ID=11867622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61014669A Expired - Fee Related JPH0657872B2 (en) | 1986-01-28 | 1986-01-28 | Surface treatment method for stainless steel |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0231001A1 (en) |
| JP (1) | JPH0657872B2 (en) |
| DE (1) | DE3702141A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003286581A (en) * | 2002-03-29 | 2003-10-10 | Sumitomo Metal Ind Ltd | Surface treated stainless steel plate and manufacturing method thereof |
| US6890658B2 (en) | 2000-09-29 | 2005-05-10 | 3M Innovative Properties Company | Transparent resin-coated stainless steel article |
| JP2014223825A (en) * | 2013-05-15 | 2014-12-04 | 株式会社五光製作所 | Waste or sewage tank for railway vehicle |
| CN112004610A (en) * | 2018-04-26 | 2020-11-27 | Ａｇｃ株式会社 | Method for producing laminate, and laminate |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0389966B1 (en) * | 1989-03-25 | 1994-08-10 | Sumitomo Electric Industries, Ltd. | Fluororesin-coated article |
| US5284611A (en) * | 1989-06-22 | 1994-02-08 | Minnesota Mining And Manufacturing Company | Fluoroelastomer composition with improved bonding properties |
| US5478652A (en) * | 1989-06-22 | 1995-12-26 | Minnesota Mining And Manufacturing Company | Fluoroelastomer composition with improved bonding properties |
| CA2017628C (en) * | 1989-06-22 | 2002-10-01 | Werner M. A. Grootaert | Fluoroelastomer composition with improved bonding properties |
| DE3941849A1 (en) * | 1989-12-19 | 1991-06-20 | Hoechst Ag | METHOD FOR POWDER COATING WITH FLUORT THERMOPLASTICS |
| US5578347A (en) * | 1994-05-24 | 1996-11-26 | E. I. Du Pont De Nemours And Company | Process for applying a finish to a metal substrate |
| DE4418893A1 (en) * | 1994-05-31 | 1995-12-07 | Metallgesellschaft Ag | Layered composite |
| KR20010041763A (en) | 1998-03-11 | 2001-05-25 | 스프레이그 로버트 월터 | Method of forming a thermoplastic layer on a layer of adhesive |
| EP2617784B1 (en) | 2010-09-13 | 2015-06-10 | Sumitomo Metal Mining Co., Ltd. | Primer composition |
| JP5223991B1 (en) | 2011-11-30 | 2013-06-26 | 住友金属鉱山株式会社 | Primer composition |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB872929A (en) * | 1957-07-25 | 1961-07-12 | Union Carbide Corp | Amino alkyl silicon compounds as bonding agents for polymeric coatings to metals |
| DE2215600C3 (en) * | 1972-03-30 | 1980-11-13 | Dynamit Nobel Ag, 5210 Troisdorf | Use of ß-aminoalkylsilanes for the pretreatment of oxidic and metallic surfaces |
-
1986
- 1986-01-28 JP JP61014669A patent/JPH0657872B2/en not_active Expired - Fee Related
-
1987
- 1987-01-24 EP EP87100986A patent/EP0231001A1/en not_active Withdrawn
- 1987-01-24 DE DE19873702141 patent/DE3702141A1/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6890658B2 (en) | 2000-09-29 | 2005-05-10 | 3M Innovative Properties Company | Transparent resin-coated stainless steel article |
| JP2003286581A (en) * | 2002-03-29 | 2003-10-10 | Sumitomo Metal Ind Ltd | Surface treated stainless steel plate and manufacturing method thereof |
| JP2014223825A (en) * | 2013-05-15 | 2014-12-04 | 株式会社五光製作所 | Waste or sewage tank for railway vehicle |
| CN112004610A (en) * | 2018-04-26 | 2020-11-27 | Ａｇｃ株式会社 | Method for producing laminate, and laminate |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0657872B2 (en) | 1994-08-03 |
| EP0231001A1 (en) | 1987-08-05 |
| DE3702141A1 (en) | 1987-10-01 |
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