JPS6357673A - Coating material for aluminum fin - Google Patents
Coating material for aluminum finInfo
- Publication number
- JPS6357673A JPS6357673A JP20159086A JP20159086A JPS6357673A JP S6357673 A JPS6357673 A JP S6357673A JP 20159086 A JP20159086 A JP 20159086A JP 20159086 A JP20159086 A JP 20159086A JP S6357673 A JPS6357673 A JP S6357673A
- Authority
- JP
- Japan
- Prior art keywords
- water
- soluble resin
- zirconium carbonate
- aluminum
- paint
- 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
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 40
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 40
- 239000000463 material Substances 0.000 title abstract description 23
- 239000011248 coating agent Substances 0.000 title abstract description 18
- 238000000576 coating method Methods 0.000 title abstract description 18
- 229920005989 resin Polymers 0.000 claims abstract description 29
- 239000011347 resin Substances 0.000 claims abstract description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229910052783 alkali metal Inorganic materials 0.000 claims abstract description 8
- 239000003973 paint Substances 0.000 claims description 27
- 150000003863 ammonium salts Chemical class 0.000 claims description 5
- 229920001577 copolymer Polymers 0.000 claims description 3
- 229920000642 polymer Polymers 0.000 claims description 2
- IMROMDMJAWUWLK-UHFFFAOYSA-N Ethenol Chemical compound OC=C IMROMDMJAWUWLK-UHFFFAOYSA-N 0.000 claims 1
- 150000001340 alkali metals Chemical class 0.000 claims 1
- XJUNLJFOHNHSAR-UHFFFAOYSA-J zirconium(4+);dicarbonate Chemical compound [Zr+4].[O-]C([O-])=O.[O-]C([O-])=O XJUNLJFOHNHSAR-UHFFFAOYSA-J 0.000 claims 1
- 229920002451 polyvinyl alcohol Polymers 0.000 abstract description 13
- WRAGBEWQGHCDDU-UHFFFAOYSA-M C([O-])([O-])=O.[NH4+].[Zr+] Chemical compound C([O-])([O-])=O.[NH4+].[Zr+] WRAGBEWQGHCDDU-UHFFFAOYSA-M 0.000 abstract description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 8
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 abstract description 7
- -1 alkali metal zirconium carbonate Chemical class 0.000 abstract description 7
- 238000005260 corrosion Methods 0.000 abstract description 7
- 230000007797 corrosion Effects 0.000 abstract description 7
- 239000000377 silicon dioxide Substances 0.000 abstract description 4
- 239000002585 base Substances 0.000 abstract description 3
- 239000003431 cross linking reagent Substances 0.000 abstract description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 description 10
- 239000007864 aqueous solution Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000008199 coating composition Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000006116 polymerization reaction Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 229920000877 Melamine resin Polymers 0.000 description 2
- 239000004640 Melamine resin Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 238000010422 painting Methods 0.000 description 2
- 238000007127 saponification reaction Methods 0.000 description 2
- 229940047670 sodium acrylate Drugs 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- PQUXFUBNSYCQAL-UHFFFAOYSA-N 1-(2,3-difluorophenyl)ethanone Chemical compound CC(=O)C1=CC=CC(F)=C1F PQUXFUBNSYCQAL-UHFFFAOYSA-N 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- 229920003270 Cymel® Polymers 0.000 description 1
- 229920002125 Sokalan® Polymers 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- BAPJBEWLBFYGME-UHFFFAOYSA-N acrylic acid methyl ester Natural products COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 239000001099 ammonium carbonate Substances 0.000 description 1
- 235000012501 ammonium carbonate Nutrition 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910001593 boehmite Inorganic materials 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- FAHBNUUHRFUEAI-UHFFFAOYSA-M hydroxidooxidoaluminium Chemical compound O[Al]=O FAHBNUUHRFUEAI-UHFFFAOYSA-M 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 239000004584 polyacrylic acid Substances 0.000 description 1
- 239000002987 primer (paints) Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 description 1
- SKMHHHHLLBKNKR-UHFFFAOYSA-M sodium;prop-2-enamide;prop-2-enoate Chemical compound [Na+].NC(=O)C=C.[O-]C(=O)C=C SKMHHHHLLBKNKR-UHFFFAOYSA-M 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 150000003754 zirconium Chemical class 0.000 description 1
Landscapes
- Paints Or Removers (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の目的〕
（産業上の利用分野）
本発明は空調機用熱交換器のアルミニウムフィン表面に
親水性、防食性を付与するための塗料に関する。DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Field of Application) The present invention relates to a coating material for imparting hydrophilicity and anticorrosion properties to the surface of aluminum fins of a heat exchanger for an air conditioner.
（従来の技術）
熱交換器のアルミニウムフィンはアルミニウムフィン材
表面をベーマイト処理等の化成処理を旌すか。(Prior art) For aluminum fins in heat exchangers, is the surface of the aluminum fin material subjected to chemical conversion treatment such as boehmite treatment?
塗装により親水性を付与している。これは、アルミニウ
ムの防食とともに空ｍ機の運転中に発生する凝縮水の水
滴による通風抵抗の増加を防止し、熱交換率を低下させ
ないようにするためである。塗装による親水化処理はフ
ィンに加工した後、施されるのが一般的である。例えば
特開昭５５−１６４２６４号公報には水性塗料用樹脂、
界面活性剤および合成シリカを配合した塗料が開示され
ている。化成処理はフィンに加工する前に施されるが、
住産性に劣るという欠点を有しているので、これに代え
て親水性の塗膜をプレコートすることが最も好ましいと
考えられるようになった。しかしながら、従来のアルミ
ニウムフィン用塗料は合成シリカを配合しているので、
フィンを成形加工する際、加工工具の摩耗が激しく工具
の寿命が短くなるという問題点を有していた。Painting gives it hydrophilic properties. This is to prevent corrosion of the aluminum, as well as to prevent an increase in ventilation resistance due to droplets of condensed water generated during operation of the aircraft, and to prevent a decrease in heat exchange efficiency. Hydrophilic treatment by painting is generally applied after processing the fins. For example, JP-A-55-164264 discloses resins for water-based paints,
Paints containing surfactants and synthetic silica are disclosed. Chemical conversion treatment is applied before processing into fins,
Since it has the disadvantage of poor durability, it has come to be considered most preferable to pre-coat it with a hydrophilic coating instead. However, since conventional paints for aluminum fins contain synthetic silica,
When forming the fins, there was a problem in that the processing tools were subject to severe wear and the life of the tools was shortened.
一方、ポリビニルアルコールのような水溶性樹脂はメラ
ミン樹脂等と架橋反応により不溶化することが知られて
いる。が、この塗料系をアルミニウムフィンに通用した
場合、親水性の持続性やアルミニウム基材に対する保護
皮膜としての機能が不十分であることが判明した。また
、特開昭５０−３９２３２号公報には、水溶性樹脂と水
溶性ジルコニウム塩とからなる金属に対する塗料の下塗
り剤が開示されているが、この塗料は、樹脂含有量が低
くアルミニウムフィン材表面に十分な耐蝕性と親水持続
性を兼ね備えた塗膜を形成することができない。On the other hand, it is known that a water-soluble resin such as polyvinyl alcohol becomes insolubilized by a crosslinking reaction with a melamine resin or the like. However, when this paint system was applied to aluminum fins, it was found that the durability of hydrophilicity and the function as a protective film for the aluminum base material were insufficient. Furthermore, Japanese Patent Application Laid-open No. 50-39232 discloses a primer coating agent for metals that is made of a water-soluble resin and a water-soluble zirconium salt. It is not possible to form a coating film that has both sufficient corrosion resistance and hydrophilicity.
（発明が解決しようとする問題点）
本発明は上記現状に鑑みてなされたものであり、その目
的とするところは、合成シリカに代わる有機親水性付与
材を配合した親水性、防食性、加工性等に優れたアルミ
ニウムフィン用塗料を提供することにある。(Problems to be Solved by the Invention) The present invention has been made in view of the above-mentioned current situation, and its purpose is to provide hydrophilic, anticorrosive, and processable materials containing an organic hydrophilicity imparting material in place of synthetic silica. The purpose of the present invention is to provide a paint for aluminum fins with excellent properties.
（発明を解決するための手段）
すなわち、本発明は、水と、水溶性樹脂と、該水溶性樹
脂１００重量部に対して２０〜３００重量部（Ｚｒ０２
に換算して）の炭酸ジルコニウム塩アシレカリ金属もし
くはアンモニウム塩とからなり、上記水溶性樹脂は少な
くとも８ ｇ ／ ｌの量で配合されることを特徴とす
るアルミニウムフィン用塗料である。(Means for Solving the Invention) That is, the present invention provides water, a water-soluble resin, and 20 to 300 parts by weight (Zr02) per 100 parts by weight of the water-soluble resin.
The paint for aluminum fins is characterized in that the water-soluble resin is blended in an amount of at least 8 g/l.
本発明における水可溶性樹脂は、アルミニウムフィン表
面に十分な親水性塗膜を得るために配合するものであり
２例えばカルボキシメチルセルロース系、ビトロキシル
エチルセルロース系、ポリアクリル酸、ビニルアルコー
ル重合体、酢酸ビニル−アクリル酸メチル共重合体ケン
化物系、ビニルアルコール−アクリル酸ナトリウム共重
合体、アクリル酸ソーダ重合体系、アクリル酸ソーダー
アクリル酸アミド重合体系等の水可溶性樹脂の１種又は
２種以上の混合系系が挙げられる。好ましい水溶性樹脂
としては、形成塗膜の硬度等を考慮するとビニルアルコ
ール重合体である。The water-soluble resin in the present invention is blended in order to obtain a sufficiently hydrophilic coating film on the surface of the aluminum fin, and includes, for example, carboxymethyl cellulose, bitroxylethyl cellulose, polyacrylic acid, vinyl alcohol polymer, and vinyl acetate. One or a mixture of two or more water-soluble resins such as saponified methyl acrylate copolymer, vinyl alcohol-sodium acrylate copolymer, sodium acrylate polymer, and sodium acrylate acrylic amide polymer. can be mentioned. A preferred water-soluble resin is a vinyl alcohol polymer, considering the hardness of the formed coating film.
炭酸ジルコニウムアルカリ金属もしくはアンモニウム塩
は水可溶性樹脂の不溶化、すなわち架橋剤としての作用
し、アルミニウム基材に対する耐蝕性に寄与する。The alkali metal zirconium carbonate or ammonium salt serves to insolubilize the water-soluble resin, that is, acts as a crosslinking agent, and contributes to the corrosion resistance of the aluminum base material.
水可溶性樹脂と炭酸ジルコニウムアルカリ金属もしくは
アンモニウム塩の配合割合は、水可溶性樹脂１００重量
部に対して、炭酸ジルコニウムアルカリ金属もしくはア
ンモニウム塩をＺ ｒ Ｏ２に換算して２０〜３００Ｍ
量部、好ましくは３０〜２００重量部となるように用い
る。２０重量部未満では、塗膜の親水性は保たれるもの
の、十分な耐水性を付与させることが困難であり、また
３００重Ｒ部を越える場合には十分な耐水性が得られる
ものの親水性が十分に得られない。The mixing ratio of the water-soluble resin and the alkali metal zirconium carbonate or ammonium salt is 20 to 300 M in terms of Z r O2, based on 100 parts by weight of the water-soluble resin.
It is used in an amount of 30 to 200 parts by weight, preferably 30 to 200 parts by weight. If it is less than 20 parts by weight, the hydrophilicity of the coating will be maintained, but it will be difficult to impart sufficient water resistance, and if it exceeds 300 parts by weight, sufficient water resistance will be obtained, but the hydrophilicity will be reduced. I can't get enough of it.
本発明のアルミニウムフィン用塗料を製造するには、水
可溶性樹脂、炭酸ジルコニウムアルカリ金属もしくはア
ンモニウム塩、水及び必要に応じて塗料、顔料を加えて
もよい。塗料に占める水溶性樹脂の濃度は８ｇ／１以上
、好ましくは、２５ ｇ／１２以上の割合である。水溶
性樹脂の配合量が少なくなると、通常の塗装装置により
塗装が困難となり、フィンに加工されるアルミニウム板
に対してロールコータ−等の通常の塗装装置による塗装
ができない。In order to produce the paint for aluminum fins of the present invention, a water-soluble resin, an alkali metal zirconium carbonate or ammonium salt, water and, if necessary, a paint and a pigment may be added. The concentration of the water-soluble resin in the paint is at least 8 g/1, preferably at least 25 g/12. When the amount of water-soluble resin blended is small, it becomes difficult to coat with a normal coating device, and the aluminum plate to be processed into a fin cannot be coated with a normal coating device such as a roll coater.
本発明のアルミニウムフィン用塗料はアルミニウムフィ
ン材をに装するプレコート塗料として用いることができ
る他、加工されたフィンに塗装するボストコート塗料と
しても使用することができる。The paint for aluminum fins of the present invention can be used as a pre-coat paint for coating aluminum fin materials, and can also be used as a post-coat paint for coating processed fins.
次に実施例により本発明を説明する。例中「部」「％」
とあるのは、「重量部」、「重量％」である。Next, the present invention will be explained with reference to examples. Examples include "part" and "%"
This means "parts by weight" and "% by weight."
（実施例）
実施例１
鹸化度９８モル％、平均重合度１７００〜２２００のポ
リビニルアルコールの１５％水溶ｆｉ６６６．７ｇ（固
形分１００ ｇ）と炭酸ジルコニウムアンモニウム２３
０．８ ｇとを水ｌｌ中に配合した。この塗料組成物に
は、ポリビニルアルコール１００混光たりＺ ｒ Ｏ２
に換算して３０部の炭酸ジルコニウムアンモニウムが配
合されている。(Example) Example 1 15% water-soluble fi of polyvinyl alcohol with saponification degree of 98 mol% and average polymerization degree of 1700 to 2200 666.7 g (solid content 100 g) and zirconium ammonium carbonate 23
0.8 g was blended in 1 liter of water. This coating composition contains polyvinyl alcohol 100% mixed light and ZrO2.
30 parts of ammonium zirconium carbonate is added.
この塗料をロールコータ−によりフィン加工用アルミニ
ウム板に塗布し、２６０℃の電気乾燥炉で２０秒間焼付
して、約１μｍの塗膜厚で塗装されたアルミニウムフィ
ン材を得た。This paint was applied to an aluminum plate for fin processing using a roll coater and baked for 20 seconds in an electric drying oven at 260°C to obtain an aluminum fin material coated with a coating thickness of about 1 μm.
実施例２
鹸化度９８モル％、平均重合度３００〜７００のポリビ
ニルアルコールの１５％水溶液６６６．７ｇ（固形分１
００ ｇ）と炭酸ジルコニウムアンモニウム３０７．７
ｇとを水１１中に配合した。この塗料組成物は、ポリビ
ニルアルコール１００混光たりＺｒＯ２に換算して４０
部の炭酸ジルコニウムアンモニウムが配合されている。Example 2 666.7 g of a 15% aqueous solution of polyvinyl alcohol with a degree of saponification of 98 mol% and an average degree of polymerization of 300 to 700 (solid content 1
00 g) and ammonium zirconium carbonate 307.7
g was blended in water 11. This coating composition has a mixed light content of 100% polyvinyl alcohol or 40% in terms of ZrO2.
Contains zirconium ammonium carbonate.
この塗料を実施例１と同様の方法でフィン加工用アルミ
ニウム板に塗装して、塗装されたアルミニウムフィン材
を得た。This paint was applied to an aluminum plate for fin processing in the same manner as in Example 1 to obtain a coated aluminum fin material.
実施例３
実施例１で使用したポリビニルアルコールと平均重合度
５００〜１０００のポリアクリル酸ソーダを６対４で配
合した水溶性樹脂の混合物の１５％水溶液６６６．７ｇ
（固形分１００ ｇ）と炭酸ジルコニウムアンモニウム
３８４．６ｇとを水ｌｌ中に配合した。Example 3 666.7 g of a 15% aqueous solution of a water-soluble resin mixture containing the polyvinyl alcohol used in Example 1 and sodium polyacrylate with an average degree of polymerization of 500 to 1000 in a 6:4 ratio.
(solid content 100 g) and 384.6 g of zirconium ammonium carbonate were blended in 1 liter of water.
この塗料組成物は、ポリビニルアルコール１００ｉ１Ｊ
当たりＺ ｒ ０２に換算して５０部の炭酸ジルコニウ
ムアンモニウムが配合されている。This coating composition contains polyvinyl alcohol 100i1J
50 parts of ammonium zirconium carbonate, calculated as Z r 02, is blended.
この塗料を実施例１と同様の方法でフィン加工用アルミ
ニウム板に塗装して、塗装されたアルミニウムフィン材
を得た。This paint was applied to an aluminum plate for fin processing in the same manner as in Example 1 to obtain a coated aluminum fin material.
実施例４
実施例１における塗料を水で希釈し、ポリビニルアルコ
ールの含有量が３０ ｇ／ｌとした。この塗料を実施例
１と同様の方法でフィン加工用アルミニウム板に塗装し
て、塗装されたアルミニウムフィン材を得た。Example 4 The paint in Example 1 was diluted with water to have a polyvinyl alcohol content of 30 g/l. This paint was applied to an aluminum plate for fin processing in the same manner as in Example 1 to obtain a coated aluminum fin material.
比較例１
実施例で使用したポリビニルアルコールの水溶液６６６
．７ｇと水溶性メラミン樹脂（三井東圧化学株式会社製
商品名サイメル３０３）２５．０ｇとを水１β中に配合
した。Comparative Example 1 Polyvinyl alcohol aqueous solution 666 used in the example
．． 7 g and 25.0 g of a water-soluble melamine resin (trade name: Cymel 303, manufactured by Mitsui Toatsu Chemical Co., Ltd.) were blended in 1β of water.
この塗料を実施例１と同様の方法でフィン加工用アルミ
ニウム板に塗装して、塗装されたアルミニウムフィン材
を得た。This paint was applied to an aluminum plate for fin processing in the same manner as in Example 1 to obtain a coated aluminum fin material.
比較例２
実施例４における塗料を水でさらに希釈し、ポリビニル
アルコールの含有量が５ ｇ ／ ｌとした。この塗料
は粘度が低いためロールコータ−による塗装は不可能で
あった。そこで、この塗料中にアルミニウムフィン材を
浸漬して塗装し、塗装されたアルミニウムフィン材を得
た。Comparative Example 2 The paint in Example 4 was further diluted with water to a polyvinyl alcohol content of 5 g/l. Since this paint had a low viscosity, it was impossible to apply it with a roll coater. Therefore, an aluminum fin material was dipped in this paint and painted, thereby obtaining a coated aluminum fin material.
各実施例及び比較例で得られた塗装されたアルミニウム
フィン材について親水性試験、耐蝕性試験、成形性試験
、金型摩耗性試験を行い、その評価を表１に示した。こ
こで親水性は、アルミニウムフィン材の表面を観察する
ことにより４段階評価（◎・・・非常に良い；○・・・
良い；Δ・・・やや良い；×・・・悪い）を行った。親
水性の持続は水道水による５日間の流水浸漬後の水濡れ
性を観察評価した。The coated aluminum fin materials obtained in each example and comparative example were subjected to a hydrophilicity test, a corrosion resistance test, a moldability test, and a mold abrasion test, and the evaluations are shown in Table 1. Here, hydrophilicity is evaluated in four stages (◎...very good; ○...) by observing the surface of the aluminum fin material.
Good; Δ...somewhat good; ×...bad). Sustainability of hydrophilicity was evaluated by observing water wettability after immersion in running tap water for 5 days.
耐蝕性は塩水噴霧試験１０日後におけるアルミニウムフ
ィン材の表面を観察し、上記と同様の基準で４段階評価
を行った。成形性はアルミニウムフィン材にバーニング
加工を施し、その屈曲部にクランクを生じたか否かで判
定し、上記と同様の基準で４段階評価を行った。金型摩
耗性はアルミニウムフィン材を金型を用いて一定形状に
成形した際、所定の枚数を形成した時の金型の摩耗状態
を観察し、上記と同様の評価を行った。Corrosion resistance was evaluated by observing the surface of the aluminum fin material 10 days after the salt spray test, and grading it in four stages based on the same criteria as above. Formability was determined by performing a burning process on the aluminum fin material and determining whether or not a crank was produced at the bent portion, and a four-level evaluation was performed using the same criteria as above. The mold abrasion resistance was evaluated in the same manner as above by observing the state of wear of the mold when aluminum fin material was molded into a certain shape using a mold, and a predetermined number of fins were formed.
本発明のアルミニウムフィン用塗料は水可溶性樹脂の親
水性によって水濡れ性に寄与し、水可溶性樹脂の反応性
基と炭酸アンモニウムアルカリ金属もしくはアンモニウ
ム塩が３次元架橋構造を形成することによって塗膜の防
食性を得ることが出来る。また、３次元構造を持った塗
膜で水滴ができない超親水性塗膜を得ることが出来る。The paint for aluminum fins of the present invention contributes to water wettability due to the hydrophilicity of the water-soluble resin, and the reactive groups of the water-soluble resin and the alkali metal ammonium carbonate or ammonium salt form a three-dimensional crosslinked structure, resulting in the formation of a coating film. Corrosion resistance can be obtained. Furthermore, a superhydrophilic coating film with a three-dimensional structure and no water droplets can be obtained.
更に、本発明のアルミニウムフィン用塗料は有機溶剤を
全く含まない水性塗料であるので、有機溶剤による大気
汚染或いは引火の危険性が全（ない。Furthermore, since the paint for aluminum fins of the present invention is a water-based paint that does not contain any organic solvents, there is no risk of air pollution or ignition caused by organic solvents.
Claims (1)
対して２０〜３００重量部（ＺｒＯ＿２に換算して）の
炭酸ジルコニウム塩アルカリ金属もしくはアンモニウム
塩とからなり、上記水溶性樹脂は少なくとも８ｇ／ｌの
量で配合されることを特徴とするアルミニウムフィン用
塗料。 ２、水溶性樹脂がビニルアルコール系の重合体もしく共
重合体である特許請求の範囲第１項記載のアルミニウム
フィン用塗料。 ３、水溶性樹脂は少なくとも２５ｇ／ｌ以上の量で配合
される特許請求の範囲第１項記載ののアルミニウムフィ
ン用塗料。[Claims] 1. Consisting of water, a water-soluble resin, and 20 to 300 parts by weight (in terms of ZrO_2) of an alkali metal or ammonium salt of zirconium carbonate per 100 parts by weight of the water-soluble resin. . A paint for aluminum fins, characterized in that the water-soluble resin is blended in an amount of at least 8 g/l. 2. The paint for aluminum fins according to claim 1, wherein the water-soluble resin is a vinyl alcohol-based polymer or copolymer. 3. The paint for aluminum fins according to claim 1, wherein the water-soluble resin is blended in an amount of at least 25 g/l.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20159086A JPS6357673A (en) | 1986-08-29 | 1986-08-29 | Coating material for aluminum fin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20159086A JPS6357673A (en) | 1986-08-29 | 1986-08-29 | Coating material for aluminum fin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6357673A true JPS6357673A (en) | 1988-03-12 |
Family
ID=16443577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20159086A Pending JPS6357673A (en) | 1986-08-29 | 1986-08-29 | Coating material for aluminum fin |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6357673A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104327555A (en) * | 2014-11-25 | 2015-02-04 | 南京信息工程大学 | Water-based strippable coating and preparation method thereof |
| US20150232681A1 (en) * | 2013-03-21 | 2015-08-20 | Nihon Parkerizing Co., Ltd. | Hydrophilic surface treatment agent for aluminum-containing metal heat exchangers having excellent drainage |
-
1986
- 1986-08-29 JP JP20159086A patent/JPS6357673A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150232681A1 (en) * | 2013-03-21 | 2015-08-20 | Nihon Parkerizing Co., Ltd. | Hydrophilic surface treatment agent for aluminum-containing metal heat exchangers having excellent drainage |
| US9534132B2 (en) * | 2013-03-21 | 2017-01-03 | Nihon Parkerizing Co., Ltd. | Hydrophilic surface treatment agent for aluminum-containing metal heat exchangers having excellent drainage |
| CN104327555A (en) * | 2014-11-25 | 2015-02-04 | 南京信息工程大学 | Water-based strippable coating and preparation method thereof |
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