JPS59139969A - Manufacture of protective coating film - Google Patents
Manufacture of protective coating filmInfo
- Publication number
- JPS59139969A JPS59139969A JP1137283A JP1137283A JPS59139969A JP S59139969 A JPS59139969 A JP S59139969A JP 1137283 A JP1137283 A JP 1137283A JP 1137283 A JP1137283 A JP 1137283A JP S59139969 A JPS59139969 A JP S59139969A
- Authority
- JP
- Japan
- Prior art keywords
- solution
- alkali metal
- alkali
- coating film
- bath solution
- 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
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- Chemical Treatment Of Metals (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、アルミニウム反射鏡等の金属板の表面にアル
カリ金属ケ・「酸塩浴液を用いて形成１−る保護被膜の
製造方法に関１−１￥ｆＶＣ１耐食性に秀１１ているば
かりでなく保護被膜の表面て水分や塵埃等が付着しにく
く、仮に付着しても容易にふきとることができるばかり
でなく、耐摩耗性や耐スクラッチ性も秀７’している等
の特長を備えた保護被膜の製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for producing a protective film formed on the surface of a metal plate such as an aluminum reflective mirror using an alkali metal salt bath. Not only does it have excellent wear resistance and scratch resistance, it also has excellent abrasion resistance and scratch resistance. The present invention relates to a method for producing a protective film having the following characteristics.
アルミニウム反射鏡等の金属板の表面にアルカリ金属ケ
イ酸塩溶液を用いて保護被膜を形成する方法は既に公知
であり、例えば特公昭５６−３０５２１号公報等に詳細
′Ｌ記載さ２ｔている。かかる方法により製造さ７ｔだ
保護被膜は、一般的にカラス状の密着した透明な波膜で
あって、化学的にも安定しており、従来の陽陰酸化波膜
などに比べて化学物質や汚染物質Ｖこよろ浸食に対して
極めて大きな耐性を有するという！特長を有する。とこ
ろが、このような方法によって製造さ２また被膜の厚み
は、通常１〜２ｔノ程度と極めて薄いた。め、耐摩耗性
や耐スクラッチ性に劣るという弱点かあった。このよう
な弱点をカバ□−ｆろために、例えば特許昭５７−４３
６３４号公報′ｆｒｃ記載さ几ているような製造方法か
提案された。即ち、金属板の表面にアルカリ金属ケイ酸
塩ω敵を塗布し乾燥させ高温で焼き１寸けて第一の保護
′ｆ１膜を形成し〜、該被膜を酸処理［−て波膜中のア
ルカリ金、匡イオンを抽出除去した後、同じモ程を内度
繰り返すことてより前記第一の保護被膜の上に第二の保
護波膜を強固に形成する方法である。これてより被膜の
耐摩耗性や耐スクラッチ性も改善さオｔ、アルカリ金属
ケイ酸塩被膜の特長を太いに生かすことができるように
なった。A method of forming a protective film on the surface of a metal plate such as an aluminum reflector using an alkali metal silicate solution is already known and is described in detail in, for example, Japanese Patent Publication No. 30521/1983. The 7-ton protective coating produced by this method is generally a transparent corrugated membrane with a close contact in the form of a glass, and is chemically stable and less susceptible to chemical substances than conventional positive and negative oxidation corrugated membranes. It is said to have extremely high resistance to erosion caused by pollutant V! It has characteristics. However, the thickness of the film produced by such a method is usually extremely thin, about 1 to 2 tons. However, it had the disadvantage of poor wear resistance and scratch resistance. In order to cover such weaknesses, for example, the patent 1986-43
A manufacturing method as described in Publication No. 634'frc was proposed. That is, the surface of the metal plate is coated with an alkali metal silicate, dried and baked at high temperature to form a first protective film. In this method, after extracting and removing alkali gold and solid ions, the same process is repeated several times to firmly form a second protective wave film on the first protective film. This has improved the abrasion resistance and scratch resistance of the coating, and has made it possible to take full advantage of the features of the alkali metal silicate coating.
ところが、上記のような方法により製造した保護被膜を
有する物体も、こオｔをし年使用していると、従来の陽
極酸化波膜て比べ、ｉｔば著しく少ないとはいうものの
、徐々に腐食する現象があられれ、特に水と塵埃や汚染
物質が付着［２やすい場所で使用した場合にこの傾向が
著しいことがわかった。その原因を徹底的にＩｎ求した
結果、腐食が生ずるのは、主として保護被膜の表面に存
在する欠陥部分と、被膜表面が親水性であることに起因
−４−ることか判明した。即ち、保護被膜の表面はこｉ
ｔ、を微視的に見ろと、製造条件や製造環境に起囚才ろ
と考えられろ１ピンホール」と称する小孔や「クラック
」と称する微小亀裂等の欠陥が部分的に存在している。However, after years of use, objects with protective coatings manufactured by the method described above will gradually corrode, although the amount of corrosion is significantly less than that of conventional anodized wave membranes. It has been found that this tendency is particularly noticeable when used in locations where water, dust, and pollutants are likely to adhere. As a result of thorough investigation into the cause, it was found that corrosion occurs mainly due to defects present on the surface of the protective coating and the hydrophilic nature of the coating surface. That is, the surface of the protective film is
If you look at the t, microscopically, it can be thought that the manufacturing conditions and environment are responsible for the partial existence of defects such as small holes called "pinholes" and microcracks called "cracks." There is.
一方、従来のアルカリ金属ケイ酸塩被膜は、高ｉＭで・
焼き付けた後、「曇り」が発生するのを防止するため酸
で処理して被膜中のアルカリ金属イオンを抽出除去する
ことに起因して表向層に親水性の水酸基し一〇■］〕が
存在しており、全体として親水性の強い被膜となってい
る。従って、保護波膜の表面に水が付着すると被膜全体
が広く水で覆わ才ｔろこととなり、先に、・ボベた被膜
の欠陥部分も水の侵入を受け、しかも親水性のために水
が流オを落ちにくい状態となる。On the other hand, conventional alkali metal silicate coatings have high iM.
After baking, the surface layer is treated with acid to extract and remove alkali metal ions in order to prevent "clouding" from occurring, resulting in the formation of hydrophilic hydroxyl groups on the surface layer. The film is highly hydrophilic as a whole. Therefore, if water adheres to the surface of the protective wave film, the entire film will be extensively covered with water, and the defective parts of the film that have become smeared will also be penetrated by water. The flow becomes difficult to fall.
かかる状態において水とともに塵埃や汚染物質か何着す
ると化学反応か起り、被膜の欠陥部分から腐食が発生し
、孔食−＼と発展する。Under such conditions, if dust or other contaminants are attached to the surface along with water, a chemical reaction occurs, and corrosion occurs from the defective areas of the coating, developing into pitting corrosion.
この孔食部か［し生成したアルミニウム水酸化物等は親
水性の被膜に強固シこ令１着し、ふきとっても容易にと
２’Ｌず、腐食をま１−ます進行させろのみなしず金属
板の表向外観を著しく汚損させろ。The aluminum hydroxide formed by this pitting corrosion adheres strongly to the hydrophilic coating, and is not easily wiped off, causing corrosion to progress. Significantly stain the surface appearance of the board.
このような問題を解決−４−ろためには、腐食の原因と
／ｆ、ろ水か付着しにくいように保護波膜の表面に更に
撥水性の被膜を形成するか、又は保護被膜の膜厚を極め
て厚くすることによりピンホールやクラックを通して水
が基板と接触するのを防ぐことが考えら１１．る。前者
の具体的手段としては、完成した保護被膜の表面冗シリ
コーンオイルやワニスを塗布する方法がある。ところが
、かかる方法によると、撥水性の被膜の密着性が悪く、
耐久性も低いうえ、光線透過率も低いので、反射鏡等に
適用した場合に反射率が低Ｆ判−ろという大きな欠点か
ある。又、前記後者の具体的手段としては、同種の保護
被膜を３回〜５回程度重ねて塗る方法かあるが、この方
法によると、被膜の曇りによる反射率の低Ｆや熱的衝撃
による被膜のひび割、ｌｔが発生しやすいという欠点が
ある。In order to solve such problems, it is necessary to form an additional water-repellent coating on the surface of the protective wave membrane to prevent corrosion and to prevent filtrate from adhering to it, or to remove the protective coating. 11. By making the thickness extremely thick, it is possible to prevent water from coming into contact with the substrate through pinholes or cracks. Ru. A specific example of the former method is a method of applying redundant silicone oil or varnish to the surface of the completed protective coating. However, according to this method, the adhesion of the water-repellent film is poor;
Not only is the durability low, but the light transmittance is also low, so when it is applied to a reflecting mirror, etc., it has a major drawback of having a low reflectance. In addition, as a specific means for the latter, there is a method of applying the same type of protective film three to five times, but according to this method, the reflectance is low due to clouding of the film, and the film is coated due to thermal shock. It has the disadvantage that cracks and lt are likely to occur.
本発明は、以」二の点に鑑みてなさｉ％だもので、従来
のアルカリ金、属ケイ酸塩被１摸に比べて大きな撥水性
を有し、腐食さ、ｔＬる度合か極めて少なく、腐食生成
物が付着しても容易にふきとることかできろばかってな
く、耐摩れ性や耐スクラッチ性においても優ｉｔ、てい
る保護波膜の製造方法を提供することを目的と″４〜ろ
。The present invention has been developed in view of the following two points, and has greater water repellency than conventional alkali metal and metal silicate coatings, and has extremely low corrosion resistance. The purpose of the present invention is to provide a method for manufacturing a protective wave membrane that not only can be easily wiped off even if corrosion products adhere to it, but also has excellent abrasion resistance and scratch resistance. .
発明者（等）は先に述べたような腐食の問題を根本的に
解決するために種々実験検討を加えた結果、アルカリ金
属ケイ酸塩浴液中に水浴性シリコーン、殊シこアルカリ
メチルシリコネートを混合したものを使用して一定の処
理を施すことにより耐食性を大巾シこ向上しうろことを
確認した。即ち、アルカリ金属ケイ酸塩とアルカリメチ
ルシリコネートの海合浴散を金属板に塗布［７、乾燥さ
ぜ、高ｌ晶で焼きイ」げた後に酸処理及び水洗いをする
ことにより、表面か撥水性に富んでおり、従って水や塵
埃等が付着しニ＜＜、仮にイ」７辞しても水で容易にふ
きとることができろ保護被膜を得ろことかで゛きた。な
お、上記のアルカリメチルシリコネートどしてシま、例
えば東レシリコン株式会社かも１トライシ一ルｇｊなる
商品名て市販されているものを使用す、＋ｔばよい。In order to fundamentally solve the corrosion problem mentioned above, the inventors (and others) conducted various experimental studies and found that water-bathable silicone, especially silicon alkali methylsilicone, was added to the alkali metal silicate bath solution. It was confirmed that the corrosion resistance was significantly improved by applying a certain treatment using a mixture of esters. That is, by applying a mixture of alkali metal silicate and alkali methyl siliconate to a metal plate [7, drying and baking with high l crystals], acid treatment and water washing make the surface repellent. It is highly aqueous, so even if water, dust, etc. adhere to it, it can be easily wiped off with water, making it possible to obtain a protective coating. The above-mentioned alkali methyl siliconate may be used, for example, one commercially available from Toray Silicon Co., Ltd. under the trade name Kamo 1 Trisil gj.
上記のような保護被膜は、先に述べたような、浴液の塗
布、乾燥、焼料、酸処理とい５一連の工程をただ一回）
こげ行うことてより形Ｊ戊したものであっても、アルカ
リメチルシリコネートを添加しないアルカリ金属ケイ酸
塩浴液を用いて形成した保護被膜に比べると秀２″Ｉ−
た耐食性を有するが、被膜の厚みは１〜２μ程度である
ため、耐摩耗性及び耐スクラッチ性の点においては必ず
しも満足できるものではない。この問題を解決するため
には、従来方法と同様、」二記工程を最低二回繰り返せ
ばよいが、そａｔを実施してみたところ、第一回目の工
程で形成さ、１もだ被膜が撥水性であるため、第二回目
の工程で前記被膜のうえに浴液が全く付着しないという
新たな問題が生じた。発明者（等）は、アルカリメチル
シリコネートを添加しない従来の保護被膜が親水性であ
るという点に着目して、第一回目の工程で・はアルカリ
メチルシリコネートを添加しない浴液を用いて１呆護被
膜を形成し、第２回目の工程でアルカリメチルシリコネ
ートを添加した浴液を用いて保護被膜を形成したとこへ
極めて満足できる結果を得ろことができた。The above-mentioned protective coating requires a series of 5 steps (as mentioned above), including bath liquid application, drying, firing, and acid treatment, all done in just one step.
Even if the protective coating is formed using an alkali metal silicate bath solution without the addition of alkali methyl siliconate, the protective coating is 2"I-
However, since the thickness of the coating is about 1 to 2 μm, it is not necessarily satisfactory in terms of wear resistance and scratch resistance. In order to solve this problem, it is necessary to repeat the step 2 at least twice as in the conventional method, but when we carried out that process, we found that the first layer was formed in the first step. Due to its water repellency, a new problem arose in that no bath liquid adhered to the coating in the second step. The inventors (and others) focused on the fact that the conventional protective coating that does not contain alkali methyl siliconate is hydrophilic, and in the first step, they used a bath solution that did not contain alkali methyl siliconate. Very satisfactory results were obtained by forming a protective coating in the first step and forming a protective coating in the second step using a bath solution to which alkali methyl siliconate was added.
以下、本発明に係る保護被膜の製造方法を工程に基づい
て説明する。Hereinafter, the method for manufacturing a protective film according to the present invention will be explained based on the steps.
先ず、アルカリ金属ケ” ＣＩ２ ＋！浴液の原液を用
意し２、これを水で薄めて浸漬用浴液と才ろ。First, prepare the undiluted alkali metal bath solution2, dilute it with water, and use it as the bath solution for immersion.
実験圧用いたアルカリ金属ケイ酸塩浴液はカリウムケイ
酸塩浴液で、その原液は重叶循においておおむね次のよ
うな組成を何する。The alkali metal silicate bath liquid used in the experiment is a potassium silicate bath liquid, and its stock solution has the following composition in general.
カリウム酸化物 Ｋ２ＯＩ３．：’、係クシリカ
５ｉｎ２２０．８係
水
７０．９ 係また希釈用の水との混合比は次のとおりで
ある。Potassium oxide K2OI3. :', Kushirika in charge
5in220.8 water
70.9 The mixing ratio with water for dilution is as follows.
カリウムケイ酸塩浴液原液 ２６係水
７４ 係」二
記のような７ｇ ？Ｉ９．を用意したらその中にアルミ
ニウム反射鏡等の金属板をティグし、その表面に浴液を
十分にイ」着させた後、金属板を引き上げてこ２ｔを乾
燥室て約３２ Ｃの温度て１０分間乾燥させる。Potassium silicate bath solution stock solution 26 water
74 Section” 7g like the second one? I9. After preparing a metal plate, place a metal plate such as an aluminum reflector inside it, apply a sufficient amount of bath liquid to its surface, and then pull up the metal plate with a 2-ton lever and place it in a drying room at a temperature of about 32 C for 10 minutes. dry.
次１７こ、上記金属板を加熱炉に入れて２５０〜３２０
Ｃの温度で１０分間加熱して被膜中の水分をほぼ完全に
取り除き被膜を硬化させる−
次いで、加熱を終えた金属板を取り出して、約７０℃の
３％硝酸液に３分間浸漬して酸処理を施す。この酸処理
によって曇りの原因となる被膜中のアルカリ金属イオン
が抽出除去されろ。Next, put the metal plate in the heating furnace for 250 to 320 minutes.
The metal plate is heated for 10 minutes at a temperature of 70°C to almost completely remove the water in the film and harden the film.Then, the heated metal plate is taken out and immersed in a 3% nitric acid solution at about 70°C for 3 minutes to soak it in acid. Apply processing. This acid treatment extracts and removes the alkali metal ions in the coating that cause clouding.
酸処理を終えたら、次に被膜表面を水洗いし乾燥させて
第一回目の工程を終了する。なお、この工程は必要に応
じて俵数回繰り返しても、Ｌい。After completing the acid treatment, the surface of the coating is washed with water and dried to complete the first process. Note that this process may be repeated several times for bales if necessary.
次に、第二回目の工程に移るわけであるが、今度は、ア
ルカリ金１．Ｊケイ酸塩浴液原液に所定量の水とアルカ
リメチルシリコネートを加えた浴液を用意する。Next, we move on to the second step, this time with alkali gold 1. A bath solution is prepared by adding a predetermined amount of water and alkali methyl siliconate to the J silicate bath solution stock solution.
実験え用いたアルカリメチルシリコネートはナトリウム
メチルシリコネートで、こ２ｔは先にも述べたように、
［ドライシールＥ」なる商品名で市販さ２ｔてぃろもの
である。その一般的特Ｉ住は次のとおりである。The alkali methyl siliconate used in the experiment was sodium methyl siliconate, and as mentioned earlier,
It is commercially available under the trade name ``Dry Seal E'' and is a 2-ton body. The general special residences are as follows.
外 観 淡黄色透明
比 重（２５Ｃ） １．２６〜１．２７固形
分（係） ３０
ｐＨ１３
また、カリウムケイ酸塩浴液の原液と水とナトリウムシ
リコネートの混合比は容計係において次のとおりである
。Appearance Pale yellow transparent Specific gravity (25C) 1.26 to 1.27 Solid content 30 pH 13 In addition, the mixing ratio of the stock solution of potassium silicate bath solution, water and sodium siliconate is as follows in the capacity section. That's right.
カリウムケ・ｒ１峻ｊ需浴教原故 ２６係水
７ ：３
係ナトリウムメチル Ｊ壬
シリコネート
この場合、ナトリウムメチルシリコイ、−トの混合比は
、０．５〜１０重歇％の範囲内であオ・ｔば適宜選択す
ることができろ。もし、この下限直より少ないと十分な
撥水性なうろことかできなくなり、逆に上限値より多い
と波膜の透明度が低下する。Karium ke r1j demand bath teaching original 26 water
7:3
In this case, the mixing ratio of sodium methyl siliconate can be selected as appropriate within the range of 0.5 to 10%. If the amount is less than the lower limit, the scales will not have sufficient water repellency, and if the amount is more than the upper limit, the transparency of the wave film will decrease.
また、本発明で注意しなげ２’Ｌばならないのは、上記
混合液のｐＨを１０以上に維持しなけλｔばならないこ
とである。こオｔは、ｐＨが１０未満、特に８〜９以下
になると、アルカリ金属ケイ酸塩＃ＪＷｉ、が重合又は
縮合反応を起し、こｉ’Ｌによって生じた遊離ケイ酸の
沈殿及びケル化シτよって浴液が不透明となり、被膜を
構成できなくなるからである。In addition, in the present invention, it is necessary to pay attention to the fact that the pH of the above-mentioned liquid mixture must be maintained at 10 or more. This is because when the pH is less than 10, especially below 8 to 9, the alkali metal silicate #JWi undergoes a polymerization or condensation reaction, resulting in the precipitation and kelization of free silicic acid produced by this i'L. This is because the bath liquid becomes opaque due to τ, making it impossible to form a film.
上記のような混合液を用意したら、こ２’ＬＫ第一回目
の工程を終えた金属板をティグしてその表面に浴液を付
着させる。この後は第一回目の工程と同じ条件で、乾燥
、焼付及び酸処理を行ない、水洗い並（（乾燥をして第
二回目の工程を終了する。先にも述べたよって、アルカ
リ金属ケイ酸塩溶液のみを用いて形成した被膜中から酸
処理によってアルカリ金属イオンを抽出除去すると被膜
表面は強い親水性となるにもかかわりず、アルカリメチ
ルシリコネートを添加した混合浴液を用いて形成した被
膜中からアルカリ金属イオンを抽出除去しても何ら悪影
響が見ら２’Ｌないばかりでなく、被膜表面は強い撥水
性を示す。こ１’Ｌは被膜表面に擦水性をもた１うすメ
チル基をもったメチルシリコネートが存在１−ろためで
あると考えらオする。ぞして、この」硬水性のためて金
属板の表面にシま腐食の原因となる水や塵埃などかたま
りにくくなる。のみならず、メチルシリコネートのメチ
ル基は不活性で、腐食生成物たるアルミニウムの水酸化
物に対１−て非粘着性であるため、保護波膜の表面には
腐食生成物が付着しにくく、仮に（−１着しても水など
で容易てふきとることかできるのである。Once the above-mentioned mixed solution is prepared, the metal plate that has undergone the first 2'LK process is TIGed to adhere the bath liquid to its surface. After this, under the same conditions as the first process, drying, baking, and acid treatment are performed, followed by washing with water (drying to complete the second process. Although the surface of the coating becomes strongly hydrophilic when alkali metal ions are extracted and removed by acid treatment from the coating formed using only a salt solution, the coating formed using a mixed bath solution containing alkali methyl siliconate Even if the alkali metal ions are extracted and removed from the inside, there is not only no adverse effect, but also the coating surface shows strong water repellency. It is thought that the presence of methyl siliconate with a 1-rotation property is due to the presence of methylsilicone.Thus, due to its water hardness, it becomes difficult for water and dust, which cause streak corrosion, to accumulate on the surface of the metal plate. In addition, the methyl group of methyl siliconate is inert and non-adhesive to aluminum hydroxide, which is a corrosion product, so corrosion products will not adhere to the surface of the protective wave membrane. It is difficult to clean, and even if it does get wet, it can be easily wiped off with water.
また、親水性の被膜の水酸基［−０ＨＩは、金属板との
密着性を良くし、さしにす竣水性の被膜との密着性をも
よくするブライマー効果を有するので破膜全体の機械的
強度か冒まろという大きな利点もある。In addition, the hydroxyl group [-0HI of the hydrophilic film has a brimer effect that improves the adhesion with the metal plate and also with the hydrophilic film, so the mechanical damage of the entire membrane rupture is It also has the great advantage of strength and adventure.
なお、アルカリ金属ケイ酸Ｊ蓋浴ｌ夜とアルカリメチル
シリコネートの混合浴液を用いて保護波膜を形成した場
合、前記のごとき酸処理によって被膜中のアルカリ金属
を抽出除去しないと、短期間のうちに被膜シこ碑りが発
生することは勿論、被膜中の残留アルカリ金属イオンと
水分とが化合して水酸化カリウムや水酸化ナトリウム等
の腐食性浴液となり、こ２ｔが被膜中のシロキサン結合
を破壊し、撥水性をもたらすメチル基２も侵す原因とな
る。Note that when a protective wave film is formed using a mixed bath solution of alkali metal silicate J lid bath and alkali methyl siliconate, it will last for a short period of time unless the alkali metal in the film is extracted and removed by the acid treatment described above. Not only will scratches appear on the coating over time, but the residual alkali metal ions in the coating will combine with water to form corrosive bath liquids such as potassium hydroxide and sodium hydroxide, and this 2t will cause damage to the coating. It destroys siloxane bonds and causes attack of the methyl group 2 that provides water repellency.
最後に、本発明の効果を実験データによって示−１−８
実験は、アルカリメチルシリコネートを添加しないアル
カリ金属ケイ酸塩浴液を用いて、こオｔをアルミニウム
反射鏡の表面て塗布し、乾燥させ、焼き付けた後、酸処
理及び水洗いする工程をただ一回だけ行うことによって
形成した保護被膜（試料１）と、アルカリメチルシリコ
ネートを添加した′＃３液を用いて上記工程を一回だけ
行って形成した保護波膜（試料２）と、アルカリメチル
シリコネートを添加しない浴液のみを用いて前記工程を
二回繰り返すことてより得ら２’ｔた保護波膜（試料３
）と、第一回目の工程ではアルカリメチルシリコネート
を添加ｌ−ない浴液を用い、第二回目の工程ではそれを
添加した浴液を用いた本発明に１系ろ保護被膜（試料、
１）とを、それぞれキャス附食試験（ＪＩＳ Ｈ８６
８１）により試験し、レイテインクナンハー（Ｒ、Ｎ、
）によろ而」良度、孔食の程変、試験後の外観、麿１食
部分の水のふきとり性、及び反射鏡の反射率について調
べてみた１、また、面１摩耗性、釦スクラッチ性及び耐
沸酸性についてもそ１１それ試験をしてみた。１１１ｊ
ｊＩす′粍性試１験（：ｌ２、試料を４５°の角度で設
置首しその上に２３０脇」二方より定量の砂を落下させ
た後、表面をブローフで電流の導通度をあたった。耐ス
クラッチ性は約３ Ｋ９の荷重の表向知カーセをあて、
その部分で試料の表面をこすって表面状ｊ′川を目視判
定（−た。さ１うに耐沸酸試１験はｌ係ｔ’ｌ＋ｉ酸酪
液を試料の表面に滴下し規定時間放置し、て侵食さ２ｔ
ろまでの時間をはかった。これらの試験の結果を第１表
圧水す。こｉｔらの結果ρ・ら本発明に系ろ製造方法７
こより製造した保護被膜は、耐食性、面１摩耗性、耐ス
クラッチ性の何才ｔにおいても、従来の保護被膜より秀
才ｔていることは容易に判断できるで゛あろう。Finally, the effects of the present invention are demonstrated by experimental data. After drying and baking, the protective film (sample 1) was formed by performing the acid treatment and water washing process only once, and the above process was performed once using '#3 solution to which alkali methyl siliconate was added. A protective wave film (Sample 2) was formed by repeating the above process twice using only a bath solution to which no alkali methyl siliconate was added (Sample 3).
), and in the first step, a bath solution without the addition of alkali methyl siliconate was used, and in the second step, a bath solution to which it was added was used.
1) and CAST feeding test (JIS H86
81) and tested by Reitinknanhar (R, N,
) We investigated the quality, changes in the degree of pitting corrosion, appearance after the test, ease of wiping off water from the corrosion area, and reflectance of the reflector. We also conducted 11 tests for its properties and boiling acid resistance. 111j
Test 1 for corrosion resistance test (12) A sample was placed at an angle of 45°, and a certain amount of sand was dropped from both sides, and the surface was tested for current conductivity with a blow blower. The scratch resistance was approximately 3.
The surface of the sample was rubbed with that part and the surface condition was visually determined (-).For the first test of boiling acid resistance, drop l+t'l+i acid butyric liquid on the surface of the sample and leave it for a specified time. , eroded 2t
I timed the time it took to get there. The results of these tests are the first surface pressure water test. As a result of this et al.
It can be easily determined that the protective coating produced from this method is superior to conventional protective coatings in terms of corrosion resistance, surface abrasion resistance, and scratch resistance.
Claims (1)
乾燥させ高７１完で焼き付けて親水性の保護被膜を形成
した後、該保護１皮膜の表面にアルカリ金属ケイ酸塩浴
液とアルカリメチルシリコネートの混合浴液を塗布り乾
燥さぜ高蒲１で焼き付けてか１′：）酸処理することに
より撥水性の保護波膜を形成することを特徴とする保護
波膜の製造方法。 ２ アルカリ金属ケイ酸塩溶液かカリウムケイ酸塩浴液
又はナトリウムケイ酸塩浴液もしくはこれらの混合ン谷
液であり、アルカリメチルシリコネートがナトリワムメ
チルシリコネート又はカリウムメチルシリコネートもし
くシまこれもの混合体てあることを特徴とする特Ｉ１−
請求の範囲第１項記載の保：穫被膜の製造方法。 ３ アルカリ金属ケ・ｆ酸塩浴液を塗布し乾燥させ高温
で焼き付けた段階と、アル刀り金属ケイ酸塩浴液とアル
カリメチルシリコネートの混合浴液を塗布し乾燥させ高
温で焼き付けた段階とに分けて酸処理を施すことを特徴
とする特許請求の範囲第１項記載の保護破膜の製造方法
。[Claims] After applying an alkali metal silicate solution to the surface of a metal plate, drying it and baking it at a high temperature of 71 to form a hydrophilic protective film, the surface of the protective film is coated with an alkali metal silicate solution. Protection characterized by forming a water-repellent protective wave film by applying a mixed bath solution of an acid salt bath solution and an alkali methyl siliconate and baking it with a dry saze-takakama 1:) acid treatment. Method for producing a wave film. 2. An alkali metal silicate solution, a potassium silicate bath solution, a sodium silicate bath solution, or a mixed solution thereof, and the alkali methyl siliconate is sodium methyl siliconate or potassium methyl siliconate. Special feature I1- characterized in that it contains a mixture of siliconate or shimakore.
A method for producing a protective film according to claim 1. 3 A stage in which an alkali metal salt bath solution was applied, dried, and baked at a high temperature, and a stage in which a mixed bath solution of an alkali metal silicate bath solution and an alkali methyl siliconate bath solution was applied, dried, and baked at a high temperature. 2. The method for producing a protective ruptured membrane according to claim 1, wherein the acid treatment is carried out separately.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1137283A JPS59139969A (en) | 1983-01-28 | 1983-01-28 | Manufacture of protective coating film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1137283A JPS59139969A (en) | 1983-01-28 | 1983-01-28 | Manufacture of protective coating film |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59139969A true JPS59139969A (en) | 1984-08-11 |
| JPH0325515B2 JPH0325515B2 (en) | 1991-04-08 |
Family
ID=11776180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1137283A Granted JPS59139969A (en) | 1983-01-28 | 1983-01-28 | Manufacture of protective coating film |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59139969A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8021004B2 (en) | 2007-01-13 | 2011-09-20 | Jacek Helenowski | Mirrored element |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107674231B (en) * | 2017-10-20 | 2021-04-20 | 南京工程学院 | Hydrophobic and oleophobic polymer composite microsphere and preparation method thereof |
-
1983
- 1983-01-28 JP JP1137283A patent/JPS59139969A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8021004B2 (en) | 2007-01-13 | 2011-09-20 | Jacek Helenowski | Mirrored element |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0325515B2 (en) | 1991-04-08 |
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