KR830001522B1 - Vaporizable Composite Antirust Agent For Steel - Google Patents

Vaporizable Composite Antirust Agent For Steel Download PDF

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Publication number
KR830001522B1
KR830001522B1 KR1019810003080A KR810003080A KR830001522B1 KR 830001522 B1 KR830001522 B1 KR 830001522B1 KR 1019810003080 A KR1019810003080 A KR 1019810003080A KR 810003080 A KR810003080 A KR 810003080A KR 830001522 B1 KR830001522 B1 KR 830001522B1
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vaporizable
rust
steel
composite
antirust agent
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KR1019810003080A
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Korean (ko)
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이범성
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이범성
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    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
    • C23F11/02—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in air or gases by adding vapour phase inhibitors

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
  • Paper (AREA)

Abstract

내용 없음.No content.

Description

철강용 기화성 복합 방청제Vaporizable Composite Antirust Agent For Steel

본 발명은 각종 철제품의 해상수송 및 장기 저장시에 발생하는 녹의 방지를 위하여 분위기 방청효과가 우수한 몇가지 기화성 방청제의 방청특성을 복합적으로 이용함을 특징으로 하는 철강용 기화성 복합 방청제에 관한 것이다. 종래 철강용 기화성 방청제는 디이소프로필암모늄나이트 라이트(diisoprpylammoniumnitrite)를 비롯한 디사이크로헥실암모늄 나이트라이트(dicyclohexylammonium nitrite)등과 같이 단일화합물을 주로 사용되어 왔다. 그러나 각종 기화성 방청제로 사용되는 당일 화합물은 한정된 방청특성을 나타내므로서 기화성 방청제로는 많은 문제점이 있는 것이다.The present invention relates to a vaporizable composite corrosion inhibitor for steel, characterized in that it uses a combination of the rust prevention properties of several vaporizable rust inhibitors excellent in the atmosphere rust preventive effect in the sea transportation and long-term storage of various iron products. Conventionally, vaporizing rust inhibitors for steel have been mainly used as a single compound, such as dicyclohexylammonium nitrite, including diisoprpylammonium nitrite. However, the same-day compound used as various vaporizable rust inhibitors has limited problems as a vaporizable rust preventive agent because it exhibits limited rust preventive properties.

본 발명인은 각 기화성 방청제가 가지는 방청특성을 복합적으로 이용하기 위하여 여러가지 화합물을 화합물별로 혼합하여 JISZ1519-1973기화성 방청제의 실험방법에 의하여 실험하였으며, 다른 한편으로는 부식촉진기속에서 500시간 시험한 결과 요소(urea)와 헥사 메칠렌테트라민 및 소듸움 나이트라이트(sodinm nitrit)을 혼합한 기화성 복합 방청제가 현저히 우수한 방청효과를 가짐을 발견하였다.In order to use the rust-preventing properties of each vaporizable rust inhibitor in combination, the present inventors experimented by mixing various compounds by compounds according to the test method of JISZ1519-1973 vaporizable rust preventive agent, and on the other hand, the result of the test for 500 hours in the corrosion accelerator. It was found that the vaporizing composite anticorrosive mixed with (urea), hexamethylenetetramine, and sodium nitrit had a remarkably good antirust effect.

즉, 본발명기화성 복합 방청제는 요소와 헥사메칠렌테트라민 및 소듸움나이트라이트로 조성되며, 분말 또는 정제로 하거나 또는 수용액으로 하여 결착제와 혼합하여 종이에 도포하여 방청지로 하여 사용한다. 이 기화성 복합 방청제의 기화방청 작용기구는 실험결과 다음과 같이 구명되었다.That is, the present invention vaporizing composite anticorrosive agent is composed of urea, hexamethylenetetramine, and sodium nitrite, and is used as a rust preventive paper by applying it to paper by mixing it with a binder in powder or tablet form or as an aqueous solution. The vaporization rust preventive mechanism of this vaporizable composite rust inhibitor was found as follows.

즉 요소와 헥사메칠렌테트라민 및 소듸움 나이트라이트로된 기화성 방청제는 흡습과 동시에 분해하여NH3와 HCHO 및 HNO2와 NaOH 그리고 CO등이 생성되며, 환원성 화합물인 HCHO와 HNO2및 CO는 주위의 산소와 반응하여 HCOOH 및 HNO3와 CO2등으로 되고 알카리인 NH3와 산인 HNO3가 반응하여 가장 방청성이 우수한 NH2NO2를 생성하며, 다른 한편 유기산인 HCOOH와 알카리인 NH3가 반응하여 역시 우수한 방청성을 가지는 HCONH2를 생성한다.I.e. elements and hexa methylene tetramine and bovine duium the vaporizing rust inhibitor to nitrite is decomposed with moisture at the same time, NH 3 and HCHO and HNO 2 and NaOH and CO etc. is generated and, a reducing compound, HCHO and HNO 2 and CO is around HCOOH and HNO 3 and CO 2 react with oxygen, and NH 3 and alkali HNO 3 react to produce NH 2 NO 2 with the highest rust resistance, while HCOOH and alkali NH 3 react with organic acids. It also produces HCONH 2 with good rust resistance.

이와같이 일정한 밀폐된 공간에서 환원작용을 하여 주위의 산소를 제거하므로서 방청분위기를 조성하며 또한 최종 분해 생성물인 NH2NO2와 HCONH2가 우수한 방청제로 작용하여 밀폐된 공간에서 방청효과를 나타낸다. 또한 분해생성물인 NaOH는 금속의 접촉면을 알카리성으로 유지시키는 등으로 본 발명의 기화성 복합 방청제는 밀폐된 공간내에서 공간효과와 접촉 효과를 나타내는 우수한 방청제임이 실험결과 밝혀졌다.In this way, by reducing the oxygen in a constant closed space to remove the surrounding oxygen to form a rust preventive atmosphere and the final decomposition products NH 2 NO 2 and HCONH 2 acts as an excellent rust preventive effect in the sealed space. In addition, it was found that NaOH, which is a decomposition product, maintains the contact surface of the metal alkaline, and thus the vaporizing composite anti-corrosive agent of the present invention is an excellent anti-corrosive agent exhibiting a space effect and a contact effect in a closed space.

[실시예 1]Example 1

기화성 복합 방청분말Vaporizable Compound Antirust Powder

요소 10%와 헥사메칠렌테트라민 20% 및 소듸움 나이트라이트 70%로 구성되는 기화성 복합 방청제 0.1-95부와 잔여 체질(무기) 안료를 홉합하여 분말 또는 정제로 하여 사용한다. 이 정제를 JISZ519(1973) 시험방법으로 500시간 시험한 결과 녹이 발생하지 않았다.0.1-95 parts of a vaporizable composite rust inhibitor consisting of 10% of urea, 20% of hexamethylenetetramine and 70% of sodium nitrite and residual sieving (inorganic) pigments are mixed and used as a powder or a tablet. This tablet was tested for 500 hours by the JISZ519 (1973) test method, and no rust occurred.

[실시예 2]Example 2

기화성복합 방청지Vaporizable Composite Antirust

실시예1과 같이 제조된 기화성 복합 방청제 분말 5-30부를 물에 용해하고 수용성 결착제 0.5-6부와 혼합한 후 중성 크라프트지에 도포 또는 침지하여 건조하여 방청포장지로 한다.5-30 parts of the vaporizable composite anti-corrosive powder prepared in Example 1 was dissolved in water and mixed with 0.5-6 parts of a water-soluble binder, and then coated or immersed in neutral kraft paper to dry to obtain a rust-prevented packaging paper.

이 방청포장지를 JISZ1535(1973) 시험방법에 의하여 L 및 H형의 1종 1등급에 합격하였다.This rust preventive wrapping paper passed the first and second grades of L and H type by the JISZ1535 (1973) test method.

Claims (1)

본문에 상술한 바와같이 요소 0.5-40%와 헥사메칠렌 테트라민 1-95% 및 소듸움 나이트라이트 1-70%로 됨을 특징으로 한 철강용 기화성 복합 방청제.A vaporizable composite rust inhibitor for steel, characterized by 0.5 to 40% of urea, 1 to 95% of hexamethylene tetramin, and 1 to 70% of sodium nitrite as described above.
KR1019810003080A 1981-08-24 1981-08-24 Vaporizable Composite Antirust Agent For Steel KR830001522B1 (en)

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KR1019810003080A KR830001522B1 (en) 1981-08-24 1981-08-24 Vaporizable Composite Antirust Agent For Steel

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