JP2590270B2 - Rust prevention paint composition - Google Patents
Rust prevention paint compositionInfo
- Publication number
- JP2590270B2 JP2590270B2 JP1232124A JP23212489A JP2590270B2 JP 2590270 B2 JP2590270 B2 JP 2590270B2 JP 1232124 A JP1232124 A JP 1232124A JP 23212489 A JP23212489 A JP 23212489A JP 2590270 B2 JP2590270 B2 JP 2590270B2
- Authority
- JP
- Japan
- Prior art keywords
- rust
- weight
- parts
- preventive
- tripolyphosphate
- 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.)
- Expired - Lifetime
Links
Description
【発明の詳細な説明】 ［産業上の利用分野］ 本発明は自動車の足回り部品、シート下部の金具な
ど、自動車部品全般に塗装される防錆塗料組成物に関す
る。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a rust-preventive paint composition which is applied to automobile parts in general, such as undercarriage parts of automobiles and metal fittings under seats.
［従来の技術］ 自動車のショックアブソーバなどの足回り部品あるい
は座席シートの下部の金具などには、例えば１液型の黒
色の防錆塗料が塗装されている。この防錆塗料として
は、エポキシ樹脂にカーボンブラックが配合され、更に
無機充填材、防錆顔料などが配合された防錆塗料組成物
が一般に用いられている。そして、このような防錆塗料
組成物に用いられる防錆顔料としては、四三酸化鉛、ク
ロム酸亜鉛、トリポリリン酸アルミニウム、トリポリリ
ン酸亜鉛などが知られている。[Background Art] Undercarriage components such as automobile shock absorbers or metal fittings under a seat are coated with, for example, a one-part black rust-preventive paint. As the rust preventive paint, a rust preventive paint composition in which carbon black is mixed with an epoxy resin, and further an inorganic filler, a rust preventive pigment, and the like are mixed is generally used. And as a rust preventive pigment used for such a rust preventive paint composition, lead tetroxide, zinc chromate, aluminum tripolyphosphate, zinc tripolyphosphate, etc. are known.
［発明が解決しようとする課題］ 近年の技術の進歩により自動車の各部品の耐久性が著
しく向上し、それに伴って各部品に塗装される塗料にお
いても防錆力の向上が強く望まれている。[Problems to be Solved by the Invention] In recent years, the progress of technology has significantly improved the durability of each component of an automobile, and accordingly, there is a strong demand for an improvement in rust prevention of a paint applied to each component. .
本発明はこのような事情に鑑みてなされたものであ
り、防錆性能を一層向上させることを目的とする。The present invention has been made in view of such circumstances, and has as its object to further improve rust prevention performance.
［課題を解決するための手段］ 本発明者等は各種防錆顔料の防錆性能を調査したとこ
ろ、トリポリリン酸塩と鉄分を含有する体質顔料との組
合わせが防錆性能が向上する傾向をもつことを見出し
た。そしてこの発見をさらに追及したところ、フェライ
ト粉末と金属のトリポリリン酸塩との併用が防錆性能に
対して特に顕著な効果を奏することを見出して本発明を
完成したものである。[Means for Solving the Problems] The present inventors have investigated the rust-preventive performance of various rust-preventive pigments, and found that the combination of tripolyphosphate and an extender containing iron content tends to improve the rust-preventive performance. I found it to have. Further pursuing this discovery, they have found that the combined use of ferrite powder and a metal tripolyphosphate has a particularly remarkable effect on rust prevention performance, and have completed the present invention.
すなわち本発明の防錆塗料組成物は、マトリクスとし
てのエポキシ樹脂と、金属のトリポリリン酸塩と、金属
のトリポリリン酸塩１重量部に対して0.5〜3.0重量部の
フェライト粉末とを含有することを特徴とする マトリクスとしてのエポキシ樹脂は通常のビスフェノ
ールＡ′系のエポキシ樹脂を用いることができる。また
各種変性エポキシ樹脂を用いてもよい。このエポキシ樹
脂は通常常温で固形のものが用いられ、溶剤により溶解
して、あるいはディスパージョンとして用いることがで
きる。場合によっては他の樹脂を混合して用いることが
できる。場合によっては他の樹脂を混合して用いること
もできる。That is, the rust preventive coating composition of the present invention contains an epoxy resin as a matrix, a metal tripolyphosphate, and 0.5 to 3.0 parts by weight of ferrite powder per 1 part by weight of the metal tripolyphosphate. As a characteristic epoxy resin as a matrix, a normal bisphenol A'-based epoxy resin can be used. Various modified epoxy resins may be used. This epoxy resin is usually used in a solid state at normal temperature, and can be dissolved in a solvent or used as a dispersion. In some cases, other resins can be used in combination. In some cases, other resins can be used as a mixture.
金属のトリポリリン酸塩とは、リン酸と２価から６価
の金属又はその酸化物もしくはその水酸化物（Ｘとして
表示）と、をモル比P2O5/X＝１〜６の割合で、加熱下で
反応させて得られる化合物である。The metal tripolyphosphate is a mixture of phosphoric acid and a divalent to hexavalent metal or an oxide or hydroxide thereof (expressed as X) in a molar ratio of P 2 O 5 / X = 1 to 6. Is a compound obtained by reacting under heating.
このＸとしては、Mg、Al、Ca、Zn、Mn、Fe、Baなどの
金属、MgO、Al2O3、CaO、ZnO、MnO2、FeO、MoO3、BaO、
WO3などの酸化物、Mg（OH）２、Al（OH）３、Ca（OH）
２、Zn（OH）２、Ba（OH）２、Fe（OH）３などの水酸化
物が挙げられる。この金属のトリポリリン酸塩は、これ
らの一種もしくは２種以上の混合物として使用すること
ができる。縮合リン酸アルミニウム、縮合リン酸亜鉛、
縮合リン酸カルシウムが特に好ましい。As X, metals such as Mg, Al, Ca, Zn, Mn, Fe, and Ba, MgO, Al 2 O 3 , CaO, ZnO, MnO 2 , FeO, MoO 3 , BaO,
Oxides such as WO 3, Mg (OH) 2 , Al (OH) 3, Ca (OH)
2 , hydroxides such as Zn (OH) 2 , Ba (OH) 2 , and Fe (OH) 3 . This metal tripolyphosphate can be used as one kind or a mixture of two or more kinds. Condensed aluminum phosphate, condensed zinc phosphate,
Condensed calcium phosphate is particularly preferred.
フェライト粉末は、MO・Fe2O3型の２価金属の塩の粉
末であり、ＭとしてはMn、Fe、Co、Ni、Cu、Zn、Mgなど
から選択できる。The ferrite powder is a powder of a salt of a divalent metal of the MO.Fe 2 O 3 type, and M can be selected from Mn, Fe, Co, Ni, Cu, Zn, Mg, and the like.
フェライト粉末は、金属のトリポリリン酸塩の１重量
部に対して0.5〜3.0重量部の範囲で用いられる。0.5重
量部より少ないと防錆性能の向上が期待できず、3.0重
量部より多く配合しても効果が飽和し安定性も悪くな
る。0.75〜1.0重量部の範囲が特に望ましい。The ferrite powder is used in an amount of 0.5 to 3.0 parts by weight based on 1 part by weight of the metal tripolyphosphate. If the amount is less than 0.5 part by weight, improvement in rust prevention performance cannot be expected. A range of 0.75 to 1.0 parts by weight is particularly desirable.
本発明の防錆塗料組成物には、従来と同様に炭酸カル
シウム、クレー、タルク、硫酸バリウムなどの無機充填
剤及び他の防錆顔料あるいはシリコン系樹脂などの分散
剤を従来と同様に用いることができる。In the rust-preventive coating composition of the present invention, as in the past, inorganic fillers such as calcium carbonate, clay, talc and barium sulfate and dispersants such as other rust-preventive pigments or silicone resins are used in the same manner as before. Can be.
［発明の作用及び効果］ 本発明の防錆塗料組成物では、金属のトリポリリン酸
塩とフェライト粉末とが併用されている。フェライト粉
末を単独で使用した場合、耐光性および耐熱性などは向
上するが防錆性能はほとんどない。また金属のトリポリ
リン酸塩は防錆顔料として使用されているが、その防錆
性能は充分とはいえなかった。しかしながら本発明のよ
うに両者を所定の混合比率で併用することにより、その
機構はまだ解明されていないが、相乗効果が出現して防
錆性能が格段に向上する。[Operation and Effect of the Invention] In the rust preventive coating composition of the present invention, a metal tripolyphosphate and a ferrite powder are used in combination. When ferrite powder is used alone, light resistance and heat resistance are improved, but there is almost no rust prevention performance. Further, metal tripolyphosphate is used as a rust preventive pigment, but its rust preventive performance is not sufficient. However, when both are used together in a predetermined mixing ratio as in the present invention, although the mechanism has not been elucidated yet, a synergistic effect appears and rust prevention performance is remarkably improved.
なお、本発明ではリン酸塩ではなく縮合リン酸塩を用
いている。リン酸塩及び縮合リン酸塩は共に金属表面に
酸化被膜（不働態被膜：イオン化して金属表面に付く）
を生成させ、その後の腐食を抑制する働きがある。しか
し縮合リン酸塩は、リン酸塩より分子的に嵩高で立体障
害となり易く腐食物質の侵入などをより抑制するので、
リン酸塩より１〜２割程度防錆性能に優れている。In the present invention, a condensed phosphate is used instead of a phosphate. Both phosphate and condensed phosphate are oxide films on the metal surface (passive film: ionized and adhere to the metal surface)
And suppresses subsequent corrosion. However, condensed phosphate is more bulky and more sterically hindered than phosphate, and further suppresses the invasion of corrosive substances.
It is about 10 to 20% better in rust prevention performance than phosphate.
すなわち本発明の防錆塗料組成物によれば、防錆性能
に特に優れているので、近年のニーズに敏速に対応する
ことができ、各種被塗物を長期にわたって保護すること
ができる。That is, according to the rust-preventive coating composition of the present invention, the rust-preventive performance is particularly excellent, so that it is possible to quickly respond to recent needs and protect various kinds of coated objects for a long time.
［実施例］ 以下、実施例により具体的に説明する。[Examples] Hereinafter, specific examples will be described.
（実施例１） 第１表にも示すように、エポキシ樹脂（「EP−6337」
三井東圧化学（株）製、不揮発分45％）固形分で100重
量部、カーボンブラック（「MA−100」三菱化成（株）
製）5.3重量部、タルクなどの無機充填材20.7重量部、
鉄フェライト粉末（「KN−320」戸田工業（株）製）15.
5重量部、トリポリリン酸アルミニウム粉末（「Ｋ−10
5」テイカ（株）製）18.0重量部および有機溶剤100重量
部を分散混合して実施例１の防錆塗料組成物を得た。(Example 1) As shown in Table 1, epoxy resin ("EP-6337")
100 parts by weight of solid content, carbon black (“MA-100” manufactured by Mitsui Chemicals, Inc., manufactured by Mitsui Toatsu Chemicals, Inc., 45% non-volatile content)
5.3 parts by weight, 20.7 parts by weight of inorganic filler such as talc,
Iron ferrite powder (“KN-320” manufactured by Toda Kogyo Co., Ltd.) 15.
5 parts by weight, aluminum tripolyphosphate powder ("K-10
5 "Taica Co., Ltd.) (18.0 parts by weight) and 100 parts by weight of an organic solvent were dispersed and mixed to obtain a rust preventive coating composition of Example 1.
この防錆塗料組成物を軟鋼板（70×150mm）に乾燥膜
厚が20μｍとなるように塗装後、60℃で20分焼付け乾燥
し試験片を形成した。この試験片について塩水噴霧試験
（SST）を実施し、結果を第１表に示す。なお、塩水噴
霧試験は試験片にクロスカットを入れ、35℃、濃度５％
の食塩水を試験片表面に吹き付ける試験を行い、クロス
カット部からの錆幅が3mm、両側6mmとなるまでの時間を
測定した。The rust preventive coating composition was applied to a mild steel plate (70 × 150 mm) so that the dry film thickness became 20 μm, and then baked and dried at 60 ° C. for 20 minutes to form a test piece. The test piece was subjected to a salt spray test (SST), and the results are shown in Table 1. In the salt spray test, a cross cut was made on the test piece, and the temperature was 35 ° C and the concentration was 5%
Was tested by spraying a saline solution onto the surface of the test piece, and the time until the rust width from the cross cut portion became 3 mm and both sides became 6 mm was measured.
（実施例２） 鉄フェライト粉末を23.0重量部、トリポリリン酸アル
ミニウム粉末を9.5重量部および無機充填材を22.8重量
部としたこと以外は実施例１と同様に塗料組成物を調製
し、同様に塗装、試験した結果を第１表に示す。(Example 2) A coating composition was prepared and coated in the same manner as in Example 1, except that iron ferrite powder was 23.0 parts by weight, aluminum tripolyphosphate powder was 9.5 parts by weight, and inorganic filler was 22.8 parts by weight. Table 1 shows the results of the tests.
（比較例１） トリポリリン酸アルミニウム粉末は用いず、鉄フェラ
イト粉末を23.8重量部、無機充填材を30.5重量部とした
こと以外は実施例１と同様に塗料組成物を調製し、同様
に塗装、試験した結果を第１表に示す。(Comparative Example 1) A coating composition was prepared in the same manner as in Example 1, except that aluminum tripolyphosphate powder was not used, iron ferrite powder was 23.8 parts by weight, and inorganic filler was 30.5 parts by weight. The test results are shown in Table 1.
（比較例２） 鉄フェライト粉末は用いず、トリポリリン酸アルミニ
ウム粉末を18.5重量部、無機充填材を35.8重量部とした
こと以外は実施例１と同様に塗料組成物を調製し、同様
に塗装、試験した結果を第１表に示す。(Comparative Example 2) A coating composition was prepared in the same manner as in Example 1, except that iron ferrite powder was not used, aluminum tripolyphosphate powder was 18.5 parts by weight, and inorganic filler was 35.8 parts by weight. The results are shown in Table 1.
（評価） 第１表より、比較例１のフェライト粉末のみを含有す
る防錆塗料組成物は、SSTの結果が96時間と他に比べて
著しく劣っている。すなわちフェライト粉末単独では防
錆性能が出現しないことがわかる。また、比較例２のト
リポリリン酸アルミニウム粉末のみを含有する従来の防
錆塗料組成物は、120時間と比較的高い値を示し、防錆
性能を有している。一方、本発明の実施例の防錆塗料組
成物では、SSTの結果144時間および196時間と比較例２
よりも極めて優れた防錆性能を有している。すなわち、
フェライト粉末とトリポリリン酸アルミニウム粉末とを
併用したことにより相乗効果が出現し、防錆性能が向上
していることが明らかである。(Evaluation) From Table 1, the rust preventive coating composition containing only the ferrite powder of Comparative Example 1 had an SST of 96 hours, which was significantly inferior to the others. That is, it can be seen that rust prevention performance does not appear when ferrite powder alone is used. In addition, the conventional rust-preventive coating composition containing only the aluminum tripolyphosphate powder of Comparative Example 2 showed a relatively high value of 120 hours, and had rust-preventive performance. On the other hand, in the rust-preventive coating composition of the example of the present invention, the SST results showed
It has extremely excellent rust prevention performance. That is,
It is clear that the combined use of ferrite powder and aluminum tripolyphosphate powder produces a synergistic effect and improves rust prevention performance.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭57−126869（ＪＰ，Ａ) 特開 昭56−32554（ＪＰ，Ａ) 特開 昭56−47458（ＪＰ，Ａ) 特開 昭55−16020（ＪＰ，Ａ) 特開 昭47−22923（ＪＰ，Ａ) ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-57-126869 (JP, A) JP-A-56-32554 (JP, A) JP-A-56-47458 (JP, A) JP-A 55-126458 16020 (JP, A) JP-A-47-22923 (JP, A)
Claims (1)
のトリポリリン酸塩と、該トリポリリン酸塩１重量部に
対して0.5〜3.0重量部のフェライト粉末とを含有するこ
とを特徴とする防錆塗料組成物。1. A rust preventive coating composition comprising an epoxy resin as a matrix, a metal tripolyphosphate, and 0.5 to 3.0 parts by weight of ferrite powder per 1 part by weight of the tripolyphosphate. Stuff.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1232124A JP2590270B2 (en) | 1989-09-07 | 1989-09-07 | Rust prevention paint composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1232124A JP2590270B2 (en) | 1989-09-07 | 1989-09-07 | Rust prevention paint composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0395277A JPH0395277A (en) | 1991-04-19 |
| JP2590270B2 true JP2590270B2 (en) | 1997-03-12 |
Family
ID=16934380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1232124A Expired - Lifetime JP2590270B2 (en) | 1989-09-07 | 1989-09-07 | Rust prevention paint composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2590270B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100866699B1 (en) | 2004-03-18 | 2008-11-03 | 다이니폰 도료 가부시키가이샤 | Pollution-free rustproof pigment composition |
| EP1818379A4 (en) * | 2004-11-17 | 2008-02-20 | Dainippon Toryo Kk | Anticorrosive coating compositions |
| JP2007126565A (en) * | 2005-11-04 | 2007-05-24 | Dainippon Toryo Co Ltd | Coating composition for galvanized steel sheet or zinc alloy-plated steel sheet and steel sheet coated therewith |
| JP2012051979A (en) * | 2010-08-31 | 2012-03-15 | Dainippon Toryo Co Ltd | Rust preventive pigment composition and rust preventive coating composition |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5516020A (en) * | 1978-07-21 | 1980-02-04 | Teikoku Kako Kk | Coating composition |
| JPS5934746B2 (en) * | 1979-08-28 | 1984-08-24 | 大日本塗料株式会社 | Primary rust prevention coating composition for metals |
| JPS5647458A (en) * | 1979-09-26 | 1981-04-30 | Kansai Paint Co Ltd | Metallic container for food |
| JPS57126869A (en) * | 1981-01-31 | 1982-08-06 | Kikusui Kagaku Kogyo Kk | Rust-inhibiting water paint composition |
-
1989
- 1989-09-07 JP JP1232124A patent/JP2590270B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0395277A (en) | 1991-04-19 |
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