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Metal surface treating composition and surface treating metal material with metal surface treating film obtained therefrom

A technology for metal surface treatment and composition, which is applied in the field of surface treatment of metal materials for metal surface treatment layers, can solve the problems of insufficient storage stability of treatment agents, easy formation of precipitation, storage stability problems, etc., and achieve excellent storage stability Effect

Inactive Publication Date: 2009-07-01
KANSAI PAINT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, although the stability in water of peroxovanadic acid is better than the above-mentioned vanadate, it is easy to generate precipitation, so there is a problem in storage stability.
In addition, none of the patent documents describes an example of using peroxovanadic acid, so sufficient research has not been carried out.
This is considered to be due to the fact that the storage stability as a treatment agent has not yet reached a level where there is no problem in practical use

Method used

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  • Metal surface treating composition and surface treating metal material with metal surface treating film obtained therefrom
  • Metal surface treating composition and surface treating metal material with metal surface treating film obtained therefrom

Examples

Experimental program
Comparison scheme
Effect test

manufacture example 1

[0103] Manufacturing example 1 (Manufacture of metal surface treatment composition)

[0104] Put 100 parts by mass of deionized water into the container, add 30 parts by mass of 30% hydrogen peroxide aqueous solution and fully stir to obtain a solution with a liquid temperature of 25°C, add 15 parts by mass of vanadium to the above solution ammonium acid, and stirred for 30 minutes, thus obtaining an aqueous perovanadic acid solution.

Embodiment 1～13 and comparative example 1～2

[0106] Each composition for metal surface treatment was produced according to the composition shown in following Table 1, 2. In addition, the compounding quantity of each raw material in Table 1, 2 is shown by the solid content mass ratio in the metal surface treatment composition which is an aqueous liquid.

[0107] Using deionized water, a metal surface treatment composition was prepared so that the solid content was 15%.

[0108] The following tests were performed on each metal surface treatment composition obtained in Examples and Comparative Examples. The results are shown in Tables 1 and 2 together.

[0109] In addition, in Table 1, ( * 1)~( * 4) The raw materials are the following compounds.

[0110] ( * 1) アデカボンタイタ—UX206: brand name, manufactured by ADEKA Corporation, water-based polyurethane resin.

[0111] ( * 2) Acrylic CC234: brand name, Daicel Chemical Industry Co., Ltd. product, water-based acrylic resin.

[0112] ( * 3) Adeka resin EM-0718: brand name, ...

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Abstract

The aim of the invention is to provide a non-pollution metal surface treatment composition which has comparative anti-rusting capability with the previous chromate treatment agent and phosphate treatment agent and has excellent alkaline resistance, excellent processability, excellent corrosion resistance, excellent coating property, etc. The invention also provides a surface treatment metal material which has the metal surface treatment layer obtained by the composition. The surface treatment composition provided by the invention is characterized by comprising the following components: (A) peroxide vanadic acid; (B) organic phosphonic acid and (C) water-soluble or water-dispersive organic resin (C) which is included according to requirement.

Description

technical field [0001] The present invention relates to a metal surface treatment composition and a surface treated metal material having a metal surface treatment layer obtained from the metal surface treatment composition. Background technique [0002] Conventionally, in order to improve the corrosion resistance of metal surfaces, chromate treatment and phosphate treatment are generally performed. However, in recent years, the toxicity of chromium has become a social problem. The surface treatment method using chromate has problems such as the scattering of chromate fumes during the treatment process, the extremely high cost of wastewater treatment facilities, and the elution of chromic acid from the chemical conversion treatment film. In addition, hexavalent chromium compounds are recognized as human carcinogens by many public organizations represented by IARC (International Agency for Research on Cancer Review), and are extremely harmful substances. [0003] In additio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C22/48C23C22/50
Inventor 清水靖久山本真人
Owner KANSAI PAINT CO LTD
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