JPH10114892A - Vaporizable rust-preventive composition - Google Patents
Vaporizable rust-preventive compositionInfo
- Publication number
- JPH10114892A JPH10114892A JP27026096A JP27026096A JPH10114892A JP H10114892 A JPH10114892 A JP H10114892A JP 27026096 A JP27026096 A JP 27026096A JP 27026096 A JP27026096 A JP 27026096A JP H10114892 A JPH10114892 A JP H10114892A
- Authority
- JP
- Japan
- Prior art keywords
- rust
- component
- preventive
- acid
- benzotriazole
- 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
Landscapes
- Anti-Oxidant Or Stabilizer Compositions (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は、鉄鋼材あるいは銅
やAlなどを始めとする酸化を受け易い非鉄金属などか
らなる機械・器具や部品等を保管、搬送もしくは輸出す
る際に、その表面が酸化されて発錆するのを防止するた
めの気化性防錆組成物に関し、特に取扱いが簡便でしか
も安定して優れた防錆効果を持続する気化性防錆組成物
に関するものである。BACKGROUND OF THE INVENTION The present invention relates to a method for storing, transporting, or exporting machinery, equipment and parts made of iron or steel, or non-ferrous metals such as copper and Al which are susceptible to oxidation. The present invention relates to a vaporizable rust-preventive composition for preventing oxidization and rusting, and more particularly to a vaporizable rust-preventive composition that is easy to handle and that stably maintains an excellent rust-preventive effect.
【0002】[0002]
【従来の技術】気化性防錆剤は、被防錆対象物を包装す
る際に当該包装体の内部空間に気化性防錆剤を挿入して
おき、該防錆剤から揮発する防錆成分を被防錆対象物の
表面に化学的もしくは物理的に吸着させることによっ
て、大気中の酸素や湿気などによる酸化(腐食)を防止
するものであり、特に防錆油等の塗布による防錆を行な
えない様な機械・器具、精密機器や電子部品などの保
管、搬送、輸出時における防錆管理に広く利用されてい
る。2. Description of the Related Art A vaporizable rust preventive is a rust preventive component that evaporates from the rust preventive by inserting a vaporizable rust preventive into the internal space of the package when the object to be rust-proofed is packed. Is chemically or physically adsorbed on the surface of the object to be rust-prevented, thereby preventing oxidation (corrosion) due to oxygen or moisture in the atmosphere. It is widely used for rust prevention control during storage, transportation, and export of machinery and equipment that cannot be performed, precision equipment and electronic components.
【0003】ところが通常の気化性防錆剤は、常温で揮
発して防錆効果を発揮するものであるから、粉末状ある
いは液体状の気化性防錆剤を直接被防錆物に散布乃至塗
布したのでは、防錆成分が短期間のうちに揮発してしま
って防錆効果を喪失する。また粉末状や液状の気化性防
錆剤では、それを被防錆物に散布したり塗布するのに手
数がかかり、且つそれら防錆成分の担体成分が被防錆物
の表面に付着すると、特に精密機器等では機能障害を起
こす原因になることがある。更に、機械・器具等には、
パーツ毎に異なる種類の金属部材を複数組み込んで1つ
の機械・器具を構成しているものも多く、その様な機械
・器具などでは組合わされた各金属に対して防錆効果を
有効に発揮する複数の防錆剤を併用しなければならない
こともある。[0003] However, since ordinary vaporizable rust preventives volatilize at room temperature and exhibit a rust preventive effect, powdery or liquid vaporizable rust preventives are directly sprayed or coated on the rustproof material. If so, the rust-preventive component volatilizes in a short period of time and loses the rust-preventive effect. Also, in the case of powdery or liquid vaporizable rust preventive, it takes time and effort to spray or apply it to the rust-prevented material, and when the carrier component of the rust-preventive component adheres to the surface of the rust-prevented material, In particular, it may cause a malfunction in precision equipment and the like. In addition, for machines and instruments,
In many cases, a single machine / equipment is constructed by incorporating a plurality of different types of metal members for each part. Such a machine / equipment etc. effectively exhibits the rust-preventive effect for each combined metal. Sometimes it is necessary to use more than one rust inhibitor.
【0004】[0004]
【発明が解決しようとする課題】本発明は上記の様な従
来技術の問題点に着目してなされたものであって、その
目的は、長期間に渡って優れた防錆効果を持続すると共
に、その取扱いが簡便で被防錆物を汚染することがな
く、しかも異なる種類の金属材が組み込まれた機械・器
具等であっても、それらを確実に防錆保護できる様な気
化性防錆組成物を提供しようとするものである。SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art, and an object thereof is to maintain an excellent rust prevention effect over a long period of time and It is easy to handle, does not contaminate the rust-proof material, and even if it is a machine / apparatus etc. incorporating different types of metal materials, it is a vaporizable rust preventive that can reliably protect rust. It is intended to provide a composition.
【0005】[0005]
【課題を解決するための手段】上記課題を解決すること
のできた本発明の気化性防錆組成物とは、亜硝酸塩、p
H緩衝剤、ベンゾトリアゾールまたはその誘導体および
樹脂粉末を含有するところにその特徴が存在する。ここ
で用いられる好ましい亜硝酸塩としては、亜硝酸ナトリ
ウム、亜硝酸カリウム、亜硝酸カルシウムが、また好ま
しいベンゾトリアゾールまたはその誘導体としてはベン
ゾトリアゾールやトリルトリアゾールが例示され、これ
らはそれぞれ単独で使用し得る他、必要に応じて2種以
上を併用することができる。また好ましいpH緩衝剤と
しては、ほう酸、りん酸、フタル酸、クエン酸、こはく
酸、酒石酸、乳酸およびそれらの塩が例示され、これら
も単独あるいは2種以上を組合せて用いることができ
る。The vaporizable rust preventive composition of the present invention which can solve the above-mentioned problems includes nitrite, p
Its feature resides in containing H buffer, benzotriazole or its derivative and resin powder. Preferred nitrites used herein include sodium nitrite, potassium nitrite, and calcium nitrite, and preferred benzotriazoles or derivatives thereof include benzotriazole and tolyltriazole, each of which can be used alone. If necessary, two or more kinds can be used in combination. Preferred examples of the pH buffer include boric acid, phosphoric acid, phthalic acid, citric acid, succinic acid, tartaric acid, lactic acid and salts thereof, and these can be used alone or in combination of two or more.
【0006】本発明に係る気化性防錆組成物は、上記各
成分の均一混合物を粉末状態で不織布等の通気性袋に挿
入し、飛散しない様にして実用化することも可能である
が、顆粒状もしくは錠剤状に成形すれば、その取扱いを
一層容易にすることができるので好ましい。The vaporizable rust preventive composition according to the present invention can be put into practical use by inserting a homogeneous mixture of the above components in a powdered state into a breathable bag such as a nonwoven fabric so as not to be scattered. It is preferable to form them into granules or tablets because handling can be further facilitated.
【0007】[0007]
【発明の実施の形態】上記の様に本発明では、防錆成分
として亜硝酸塩とpH緩衝剤およびベンゾトリアゾール
またはその誘導体の3成分を併用し、且つそれらを樹脂
粉末と共に均一に混合してなるものであり、これを粉末
状態のままで通気性袋内に挿入し、あるいは顆粒状や錠
剤状に成形してから実用化すれば、液体状の気化性防錆
剤に比べてその取扱いが容易であるばかりでなく、被防
錆物を汚染する恐れも生じない。しかも、樹脂粉末と共
に混合された防錆成分からは防錆ガスが発生するが、こ
の防錆ガスは、樹脂粉末相互間の隙間から少しずつ放散
され、優れた防錆効果を長期間持続し得ることとなる。BEST MODE FOR CARRYING OUT THE INVENTION As described above, in the present invention, nitrite, a pH buffer and benzotriazole or a derivative thereof are used in combination as rust preventive components, and they are uniformly mixed with resin powder. If it is put into a breathable bag as it is in a powder state, or if it is made into granules or tablets and then put into practical use, it is easier to handle than a liquid vaporizable rust inhibitor. In addition to this, there is no risk of contaminating the rust-proof material. In addition, a rust-preventive component is mixed with the resin powder to generate rust-preventive gas. This rust-preventive gas is gradually dissipated from the gap between the resin powders, and can maintain an excellent rust-preventive effect for a long time. It will be.
【0008】尚、本発明で防錆成分の1つとして用いら
れる亜硝酸塩は、それ自体気化性を有していないので、
そのままでは気化性防錆剤として有効に作用しないが、
雰囲気中の水分および酸成分としての炭酸ガスの存在下
で加水分解を起こし、鉄鋼材料に対して優れた防錆効果
を発揮するNO2 -ガスを生成し、それにより優れた防錆
効果を発揮する。但し空気中の炭酸ガス量は非常に少な
いので、亜硝酸塩そのままではNO2 -ガスの生成量およ
び生成速度が小さいため、防錆剤としての即効性に欠け
る。ところが、亜硝酸塩と共にpH緩衝剤を適量含有さ
せておくと、上記加水分解の反応速度が促進され、防錆
剤としての即効性が高められることが確認された。The nitrite used as one of the rust-preventing components in the present invention does not itself have a vaporizing property.
As it is, it does not work effectively as a vaporizable rust inhibitor,
Hydrolysis, in the presence of carbon dioxide as a moisture and acid components in the atmosphere, NO 2 exhibits excellent anticorrosive effect against iron and steel materials - generates gas, exhibits whereby excellent corrosion protection I do. However, since the amount of carbon dioxide gas in the air is very small, the amount and rate of generation of NO 2 - gas as it is without nitrite is small, and thus lacks immediate effect as a rust inhibitor. However, it has been confirmed that when a suitable amount of a pH buffer is contained together with nitrite, the above-mentioned hydrolysis reaction rate is accelerated and the immediate effect as a rust inhibitor is enhanced.
【0009】この理由は次の様に考えられる。即ち亜硝
酸塩は、上記の様に水および酸性成分の共存下で加水分
解を起こしてNO2 -ガスを生成するが、空気中の炭酸ガ
ス濃度が低いためそのままでは加水分解が殆んど進行せ
ず、防錆効果の即効性に欠ける。従って、亜硝酸塩に酸
性成分を混合してやるとNO2 -ガス生成反応は著しく加
速されて即効性は高まるが、酸性物質の酸性度が強過ぎ
ると亜硝酸塩の加水分解が瞬時に起こり、即効性は高め
られるものの持続性が得られなくなる。ところが酸性領
域でpH緩衝作用を発揮する物質を亜硝酸塩と併用する
と、緩衝剤の作用によってpHの急激な変動が抑えら
れ、それに伴って亜硝酸塩の加水分解反応の進行も抑え
られる結果、NO2 -ガスは少しづつ放出されることにな
り、防錆効果の即効性と持続性を合わせ発揮するものと
思われる。The reason is considered as follows. That nitrite can undergo hydrolysis in the presence of water and acidic components as described above NO 2 - to produce a gas, but as it has a low carbon dioxide concentration in the air causes throat proceed hydrolysis N殆And lacks the immediate effect of rust prevention. Therefore, when'll mixing an acidic component to nitrite NO 2 - gas generating reaction is significantly accelerated immediate is increased, the acidity of the acidic substance is too strong hydrolysis of nitrite occur instantaneously, immediate effect is Although it can be enhanced, the sustainability cannot be obtained. However, when a substance which exhibits a pH buffering action in the acidic range in combination with nitrite, a sudden change in pH is suppressed by the action of the buffer, the results of suppressed progression of the hydrolysis reaction of nitrite with it, NO 2 - gas will be little by little discharged, it is believed to exhibit combined persistence and fast-acting rust effect.
【0010】しかも顆粒状あるいは錠剤状に成形したも
のは、該防錆成分が防錆に寄与しない樹脂粉末との混合
状態で成形された状態となっており、該樹脂粉末相互の
隙間から少しづつ侵入してくる水分によって徐々に加水
分解を起こしつつ、同隙間から防錆ガスの放出が行なわ
れるので、こうしたこととも相まって、従来の液状の気
化性防錆剤に比べると、防錆効果の持続性を著しく高め
ることが可能となる。In addition, the granules or tablets are formed in a state where the rust-preventive component is mixed with a resin powder which does not contribute to rust prevention. The rust-preventive gas is released from the gaps while gradually hydrolyzing due to the invading water. It is possible to remarkably enhance the performance.
【0011】ここで、鉄鋼部材に対する防錆ガス発生源
となる亜硝酸塩としては、要は水の存在下で加水分解を
起こして防錆ガスを生成し得るものであればその種類は
制限されないが、防錆効果、取扱い性、経済性等を総合
的に考えて特に好ましいのは亜硝酸ナトリウム、亜硝酸
カリウム、亜硝酸カルシウム、亜硝酸アンモニウムなど
である。The type of the nitrite, which is a source of rust-preventive gas for steel members, is not limited as long as it can generate rust-preventive gas by hydrolysis in the presence of water. Among them, sodium nitrite, potassium nitrite, calcium nitrite, ammonium nitrite and the like are particularly preferable in consideration of the rust prevention effect, handleability, economy and the like.
【0012】また防錆効果に持続性を持たせる為のpH
緩衝剤としては、水の存在系でpH安定化効果を発揮す
る緩衝剤を全て使用できるが、中でも実用性の高いの
は、ほう酸、りん酸、フタル酸、クエン酸、コハク酸、
酒石酸、乳酸およびそれらの塩であり、それらは単独で
使用する場合もあるし、必要により2種以上を併用して
pH安定化効果を一段と高めることも有効である。これ
らの中でも特に好ましいのは、ほう酸およびりん酸二水
素ナトリウムである。[0012] Further, a pH for imparting durability to the rust prevention effect.
As the buffer, any buffer that exerts a pH stabilizing effect in the presence system of water can be used. Among them, boric acid, phosphoric acid, phthalic acid, citric acid, succinic acid,
Tartaric acid, lactic acid and salts thereof, which may be used alone or, if necessary, in combination of two or more, are effective to further enhance the pH stabilizing effect. Particularly preferred among these are boric acid and sodium dihydrogen phosphate.
【0013】もう1つの防錆成分であるベンゾトリアゾ
ールおよびその誘導体は、それ自身気化性を有してお
り、これはAlなどの非鉄金属に対して優れた防錆効果
を発揮する成分であり、中でも特に好ましいのは、ベン
ゾトリアゾールおよびトリルトリアゾール、とりわけ好
ましいのはベンゾトリアゾールである。[0013] Benzotriazole and its derivatives, which are another rust-preventive component, have vaporization properties themselves, and are components that exhibit an excellent rust-preventive effect on non-ferrous metals such as Al. Of these, benzotriazole and tolyltriazole are particularly preferred, and benzotriazole is particularly preferred.
【0014】次に、上記防錆成分と共に配合される樹脂
粉末の種類も特に制限されず、要は上記防錆成分と混合
して加圧成形することによって任意の形状に成形し得る
ものであればどの様な樹脂粉末でもよく、ポリオレフィ
ン系樹脂、塩化ビニル系樹脂、酢酸ビニル系樹脂、ポリ
アミド系樹脂、ポリエステル系樹脂等を始めとする多く
の樹脂粉末、好ましくは合成樹脂粉末を使用することが
できるが、顆粒状や錠剤状等に成形して実用化する際に
特に好ましいのは、加圧成形などによって相互に接合し
易く且つ適度の隙間を残しつつ任意の形状を保持するこ
とのできる樹脂粉末、特にポリエチレン、ポリプロピレ
ン等のポリオレフィン系樹脂、塩化ビニル系樹脂、酢酸
ビニル系樹脂等が好ましく、中でも特に好ましいのはポ
リエチレン等のポリオレフィン系樹脂粉末である。Next, the type of the resin powder to be mixed with the rust preventive component is not particularly limited. In short, the resin powder can be formed into an arbitrary shape by mixing with the rust preventive component and press-molding. Any resin powder may be used, and it is possible to use many resin powders including polyolefin resin, vinyl chloride resin, vinyl acetate resin, polyamide resin, polyester resin and the like, preferably synthetic resin powder. Although it is possible, it is particularly preferable to put it into practical use by molding it into granules or tablets, and it is particularly preferable to use a resin that can be easily joined to each other by pressure molding or the like and can maintain an arbitrary shape while leaving an appropriate gap. Powders, especially polyolefin-based resins such as polyethylene and polypropylene, vinyl chloride-based resins, vinyl acetate-based resins, and the like are preferred. Olefin-based resin powder.
【0015】該樹脂粉末は、前記防錆成分との均一混合
性、成形性、防錆ガスを放出させる為の適度の粒子間隙
間形成性などを考慮して、平均粒径で10〜500μ
m、より好ましくは50〜300μm程度のものを使用
することが望ましい。The resin powder has an average particle size of 10 to 500 μm in consideration of uniform mixing with the rust preventive component, moldability, moderate interparticle gap formation for releasing rust preventive gas, and the like.
m, more preferably about 50 to 300 μm.
【0016】また上記防錆成分や樹脂粉末の好ましい配
合比率は、防錆組成物全量中に占める比率で、亜硝酸塩
が1〜40重量%、より好ましくは5〜20重量%、p
H緩衝剤が0.01〜10重量%、より好ましくは0.
1〜5重量%、ベンゾトリアゾールまたはその誘導体が
1〜40重量%、より好ましくは5〜20重量%、樹脂
粉末が10〜90重量%、より好ましくは50〜80重
量%の範囲である。尚本発明の気化性防錆組成物には、
上記必須成分の他、必要により着色剤、他の酸化防止
剤、脱水剤、分散剤等を適量含有させることも勿論可能
である。The preferred ratio of the above-mentioned rust-preventive component and resin powder is 1 to 40% by weight, more preferably 5 to 20% by weight, based on the total amount of the rust-preventive composition.
H buffer is 0.01 to 10% by weight, more preferably 0.1 to 10% by weight.
The content is 1 to 5% by weight, the content of benzotriazole or a derivative thereof is 1 to 40% by weight, more preferably 5 to 20% by weight, and the content of the resin powder is 10 to 90% by weight, more preferably 50 to 80% by weight. Incidentally, the vaporizable rust preventive composition of the present invention includes:
In addition to the above essential components, if necessary, a coloring agent, another antioxidant, a dehydrating agent, a dispersing agent and the like can be appropriately contained.
【0017】かくして得られる本発明の気化性防錆組成
物は、上記樹脂粉末相互間の隙間から上記NO2 -ガスお
よびベンゾトリアゾールガスが少しずつ放出されること
になり、鉄鋼部材および非鉄金属部材のいずれに対して
も、長期間に渡って優れた防錆効果を発揮することとな
る。特に顆粒状や錠剤等に成形したものは、粉末状ある
いは液状の気化性防錆剤の様に被防錆製品を汚染するこ
とがなく、これをそのまま或は適当な通気性袋に収納し
て被防錆製品の包装乃至梱包袋等の内部に挿入しておく
ことによって、長期間優れた防錆効果を持続させること
が可能となる。尚本発明の防錆組成物を粉末状のままの
混合物として実用化する際には、これが飛散しない様に
不織布等の通気性袋に挿入しておけば、その取扱い性を
一層高めることができるので好ましい。[0017] Thus volatile corrosion composition of the present invention obtained in the above a gap between the resin powder mutual NO 2 - will be gas and benzotriazole gas is released little by little, steel members and non-ferrous metal member In any case, an excellent rust prevention effect is exhibited over a long period of time. In particular, those formed into granules or tablets, etc. do not contaminate the product to be rusted like a powdery or liquid vaporizable rust preventive, and can be stored as it is or in an appropriate breathable bag. By inserting the product into the inside of the packaging or packing bag of the product to be rust-proofed, it is possible to maintain an excellent rust-proofing effect for a long time. When the rust preventive composition of the present invention is put into practical use as a powdery mixture, if it is inserted into a breathable bag such as a nonwoven fabric so that it does not scatter, the handleability can be further improved. It is preferred.
【0018】[0018]
【実施例】次に実施例を挙げて本発明をより具体的に説
明するが、本発明はもとより下記実施例によって制限を
受けるものではなく、前・後記の趣旨に適合し得る範囲
で適当に変更を加えて実施することも可能であり、それ
らは全て本発明の技術的範囲に包含される。EXAMPLES Next, the present invention will be described in more detail with reference to examples. However, the present invention is not limited to the following examples, but may be appropriately adjusted within a range that can conform to the purpose of the preceding and following examples. Modifications can be made and all are included in the technical scope of the present invention.
【0019】実施例1 亜硝酸ナトリウム10重量部、ベンゾトリアゾール10
重量部、ほう酸0.3重量部、高密度ポリエチレン(三
井石油化学社製「HW100P」、分子量900)7
9.7重量部を、ボールミルを用いて粉砕混合した後、
その0.25gを用いて、回転式錠剤機を使用し700
kgに加圧して直径10mm、厚み4.2mmの錠剤タ
イプの気化性防錆剤を得た。Example 1 10 parts by weight of sodium nitrite, benzotriazole 10
Parts by weight, 0.3 parts by weight of boric acid, high-density polyethylene (“HW100P” manufactured by Mitsui Petrochemical Co., Ltd., molecular weight 900) 7
After pulverizing and mixing 9.7 parts by weight using a ball mill,
Using a rotary tablet machine, 700 g of this 0.25 g was used.
It was pressed to kg to obtain a tablet type vaporizable rust inhibitor having a diameter of 10 mm and a thickness of 4.2 mm.
【0020】実施例2 上記実施例1における加圧成形前の粉末をそのまま使用
し、その0.25gを不織布(帝人社製「ユニセルBT
−070E」)からなる3cm×3cmの袋に挿入して
ヒートシールし封入した。Example 2 The powder before pressure molding in Example 1 was used as it was, and 0.25 g of the powder was woven using a nonwoven fabric (“Unicell BT” manufactured by Teijin Limited).
-070E "), heat sealed and sealed.
【0021】比較例1 前記実施例1において、ほう酸の配合を省略し、亜硝酸
ナトリウム10重量部、ベンゾトリアゾール10重量
部、高密度ポリエチレン(三井石油化学社製「HW10
0P」、分子量900)80重量部を用いた以外は、実
施例1と全く同様にして粉砕混合および製剤化し、直径
10mm、厚み4.2mmの錠剤タイプの気化性防錆剤
を得た。Comparative Example 1 In Example 1, the blending of boric acid was omitted, and 10 parts by weight of sodium nitrite, 10 parts by weight of benzotriazole, and high-density polyethylene ("HW10" manufactured by Mitsui Petrochemical Co., Ltd.)
0P ", molecular weight 900) 80 parts by weight, except that 80 parts by weight were used, pulverized, mixed and formulated to obtain a tablet type vaporizable rust inhibitor having a diameter of 10 mm and a thickness of 4.2 mm.
【0022】比較例2 市販の気化性防錆化合物としてジシクロヘキシルアンモ
ニウムナイトライト(DICHAN)を使用し、その
0.25gを、上記実施例2と同様にして不織布に封入
した。Comparative Example 2 Dicyclohexylammonium nitrite (DICHAN) was used as a commercially available volatile anticorrosive compound, and 0.25 g of the compound was sealed in a nonwoven fabric in the same manner as in Example 2 above.
【0023】比較例3 市販の非金属用気化性防錆化合物としてベンゾトリアゾ
ールを使用し、その0.25gを、上記実施例2と同様
にして不織布に封入した。Comparative Example 3 Benzotriazole was used as a commercially available vaporizable rust preventive compound for nonmetals, and 0.25 g thereof was sealed in a nonwoven fabric in the same manner as in Example 2 above.
【0024】[防錆試験1]上記実施例および比較例で
得た気化性防錆剤につき、短期気化性防錆試験を行なっ
た。鉄については、JIS Z 1519 4.4のH
形の試験法に準拠して防錆能を調べた。また非鉄金属
(銅、アルミニウム、アルミニウム鋳物)については、
40×60×2mmの試験片をゴム栓に吊り下げ、夫々
の気化性防錆剤と共に1リットルの広口瓶中に密封し、
30℃で18時間放置した後、20℃に冷却して脱イオ
ン水20mlを広口瓶中に投入し、密封してから5℃×
2時間−50℃×3時間−5℃×16時間の熱サイクル
試験を行ない、発錆状態を目視評価した。結果を表1に
示す。 ○:全く錆の発生が認められない、×:明らかに錆の発
生が認められる。[Rust Prevention Test 1] The vaporizable rust preventives obtained in the above Examples and Comparative Examples were subjected to a short-term vaporization rust prevention test. Regarding iron, H of JIS Z 1519 4.4
The rust prevention ability was examined according to the shape test method. For non-ferrous metals (copper, aluminum, cast aluminum),
A test specimen of 40 × 60 × 2 mm was hung on a rubber stopper and sealed in a 1-liter wide-mouthed bottle together with each volatile anticorrosive,
After standing at 30 ° C. for 18 hours, the mixture was cooled to 20 ° C., and 20 ml of deionized water was poured into a jar, sealed, and then sealed at 5 ° C. ×
A heat cycle test was performed for 2 hours-50 ° C. × 3 hours-5 ° C. × 16 hours, and the rusting state was visually evaluated. Table 1 shows the results. :: No rust was observed at all, ×: Obviously rust was observed.
【0025】[0025]
【表1】 [Table 1]
【0026】[防錆試験2]上記実施例および比較例で
得た各気化性防錆剤について、長期気化性防錆試験を行
なった。鉄、非鉄金属ともに、40×60×2mmの試
験片をゴム栓に吊り下げ、夫々の気化性防錆剤を水20
mlと共に1リットルの広口瓶中に密封し、30℃で1
月、4月および6月放置した後の発錆状態を目視評価し
た。結果を表2に示す。 ○:全く錆の発生が認められない、×:明らかに錆の発
生が認められる。[Rust Prevention Test 2] Each of the vaporizable rust preventive agents obtained in the above Examples and Comparative Examples was subjected to a long-term vaporization rust prevention test. For both ferrous and non-ferrous metals, a test piece of 40 × 60 × 2 mm was hung on a rubber stopper, and each vaporizable rust inhibitor was washed with water 20
sealed in a 1 liter jar with 1 ml at 30 ° C.
The rusting state after standing for months, April and June was visually evaluated. Table 2 shows the results. :: No rust was observed at all, ×: Obviously rust was observed.
【0027】[0027]
【表2】 [Table 2]
【0028】表1,2からも明らかである様に、本発明
の要件を満たす実施例1,2の気化性防錆剤は、短期試
験はもとより長期試験においても優れた防錆効果を有し
ているのに対し、比較例1(pH緩衝剤が配合されてい
ないもの)および比較例3(鉄鋼用防錆剤そのものが配
合されていないもの)では、いずれも鉄に対する防錆効
果が乏しく、また比較例2(市販の気化性防錆剤)で
は、鉄および非鉄金属のいずれに対しても、短期気化性
防錆試験においては満足な防錆効果が得られていない。As is clear from Tables 1 and 2, the vaporizable rust preventives of Examples 1 and 2 satisfying the requirements of the present invention have excellent rust preventive effects not only in short-term tests but also in long-term tests. On the other hand, in Comparative Example 1 (in which no pH buffering agent was blended) and Comparative Example 3 (in which the rust inhibitor for steel was not blended), the rust inhibitory effect on iron was poor, In Comparative Example 2 (commercially available rust preventive agent), a satisfactory rust preventive effect was not obtained for both iron and non-ferrous metals in a short-term volatilizable rust preventive test.
【0029】[0029]
【発明の効果】本発明は以上の様に構成されており、亜
硝酸塩をpH緩衝剤と併用することによって、鉄鋼材に
対して防錆ガスの徐放性を与えて長期的に防錆効果を発
揮させると共に、これらをベンゾトリアゾールまたはそ
の誘導体と併用することによって非鉄金属材に対しても
優れた防錆効果を与え、更にはこれらの防錆成分を樹脂
粉末と混合して使用し、殊に顆粒状や錠剤状などに成形
し、あるいは粉末状のままであっても不織布等の通気性
袋内に充填密封することによって飛散を防止すると共に
その取扱い性を高めることができ、気化性防錆剤として
の実用性を著しく高め得ることになった。Industrial Applicability The present invention is constituted as described above. By using nitrite in combination with a pH buffering agent, a rust-inhibiting gas is gradually released to steel materials to provide a long-term rust-inhibiting effect. In addition to the use of benzotriazole or a derivative thereof, these compounds provide excellent rust-preventing effect even on non-ferrous metal materials. Even if it is formed into granules or tablets, or even if it remains powdered, it can be prevented from being scattered and its handleability can be improved by filling and sealing in a breathable bag such as a nonwoven fabric. The practicality as a rust agent can be significantly improved.
Claims (5)
ールまたはその誘導体および樹脂粉末を含有することを
特徴とする気化性防錆組成物。1. A vaporizable rust preventive composition comprising nitrite, a pH buffer, benzotriazole or a derivative thereof, and resin powder.
カリウム、亜硝酸カルシウムよりなる群から選択される
少なくとも1種である請求項1に記載の気化性防錆組成
物。2. The vaporizable rust preventive composition according to claim 1, wherein the nitrite is at least one selected from the group consisting of sodium nitrite, potassium nitrite, and calcium nitrite.
が、ベンゾトリアゾールおよび/またはトリルトリアゾ
ールである請求項1または2に記載の気化性防錆組成
物。3. The vaporizable rust preventive composition according to claim 1, wherein the benzotriazole or a derivative thereof is benzotriazole and / or tolyltriazole.
酸、クエン酸、こはく酸、酒石酸、乳酸およびそれらの
塩よりなる群から選択される少なくとも1種である請求
項1〜3のいずれかに記載の気化性防錆組成物。4. The pH buffer according to claim 1, wherein the pH buffer is at least one selected from the group consisting of boric acid, phosphoric acid, phthalic acid, citric acid, succinic acid, tartaric acid, lactic acid and salts thereof. A vaporizable rust-preventive composition according to any of the above.
である請求項1〜4のいずれかに記載の気化性防錆組成
物。5. The vaporizable rust preventive composition according to claim 1, wherein the composition is formed into granules or tablets.
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JP27026096A JP3836546B2 (en) | 1996-10-11 | 1996-10-11 | Vaporizable rust preventive composition |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005068559A1 (en) * | 2004-01-19 | 2005-07-28 | Chubu Chelest Co., Ltd. | Volatile corrosion inhibitor, and forming material and formed article using the same |
JP2016117920A (en) * | 2014-12-18 | 2016-06-30 | 中部キレスト株式会社 | Volatile rust preventive |
KR20160121856A (en) * | 2015-04-13 | 2016-10-21 | 정용주 | Method for manufacturing rust Inhibitor and the rust Inhibitor manufactured by the same |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100871509B1 (en) | 2007-06-18 | 2008-12-05 | 황인수 | Volatile corrosion inhibitor powder manufacturing method |
-
1996
- 1996-10-11 JP JP27026096A patent/JP3836546B2/en not_active Expired - Fee Related
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005068559A1 (en) * | 2004-01-19 | 2005-07-28 | Chubu Chelest Co., Ltd. | Volatile corrosion inhibitor, and forming material and formed article using the same |
JP5025133B2 (en) * | 2004-01-19 | 2012-09-12 | 中部キレスト株式会社 | Vaporizable rust preventive, molding material and molded article using the same |
TWI392723B (en) * | 2004-01-19 | 2013-04-11 | Chubu Chelest Co Ltd | Gasificating rust inhibitor, shaped material and shaped article using the same |
JP2016117920A (en) * | 2014-12-18 | 2016-06-30 | 中部キレスト株式会社 | Volatile rust preventive |
KR20160121856A (en) * | 2015-04-13 | 2016-10-21 | 정용주 | Method for manufacturing rust Inhibitor and the rust Inhibitor manufactured by the same |
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