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Steel-structure anti-corrosion coating and preparing mehtod thereof

A technology for anti-corrosion coatings and steel structures, applied in the direction of anti-corrosion coatings, coatings, etc., can solve the problems of limited application fields and single performance of anti-corrosion coatings, and achieve the effects of wide application, good solubility, and simple preparation process

Inactive Publication Date: 2004-02-04
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the above-mentioned anti-corrosion coatings often have the disadvantage of single performance, for example, some only have anti-acid effect, and some only have anti-alkali effect, which limits their application fields to a certain extent

Method used

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  • Steel-structure anti-corrosion coating and preparing mehtod thereof
  • Steel-structure anti-corrosion coating and preparing mehtod thereof
  • Steel-structure anti-corrosion coating and preparing mehtod thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] Refer to Figure 1 for the preparation formula of graft-modified high-chlorinated polyethylene. First, weigh according to the ratio of modified high-chlorinated polyethylene 1 in Figure 1. Then the reaction vessel was airtight and then evacuated and nitrogen flowed for 5 minutes respectively, and the operation was repeated three times to fully remove the air in the vessel. Add the estimated amount of the above ingredients. Under the protection of nitrogen, the mixture was stirred and heated to 110° C. for 4 hours to obtain a viscous liquid. Cool to about 100°C, vacuumize to remove unreacted monomers, and obtain modified high-chlorinated polyethylene resin. The resulting product had an initial melting temperature of 124°C and a graft weight gain of 16%.

Embodiment 2

[0068] Modified high-chlorinated polyethylene 2 was prepared according to the formula in Fig. 1, and the temperature was raised to 130° C., and reacted for 2 hours, and the rest of the preparation method was the same as that of Example 1. The initial melting temperature of the obtained product was 135° C., and the graft weight gain was 22%.

Embodiment 3

[0070] Refer to Figure 2 for the preparation formula of silicone acrylate resin. First, prepare according to the formula of silicone acrylate resin 1 in Fig. 2 . After sealing the reaction vessel, vacuumize and blow nitrogen for 5 minutes each, and repeat the operation three times to fully remove the air in the vessel. Add the estimated amount of octamethylcyclotetrasiloxane, vinylcyclotetrasiloxane, trimethylchlorosilane and tetramethylammonium hydroxide, and then evacuate until there are no escaped bubbles in the liquid. The temperature was raised to 150° C. for 4 hours to obtain a viscous liquid. Cool to about 100°C, vacuumize to remove unreacted monomers to obtain silicone resin.

[0071] Mix butyl acrylate, methyl methacrylate, acrylic acid and dibenzoyl peroxide in proportion and set aside. In a reaction vessel equipped with a stirrer, a condenser, a thermometer and a head tank, add the above-mentioned silicone resin, 30% butyl acetate and 20% ethylene glycol methyl e...

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Abstract

An anticorrosion paint for steel structure is prepared from the modified high-chlorinated polyethylene and alkyd resin or organic silicon modified acrylic resin, filler and assistant through respectively preparing priming paint and surface paint. Its advantages are high resistance to acid, alkali, salty fog, moisture and high temp. and low cost.

Description

technical field [0001] The invention relates to an anticorrosion coating for steel structures. The present invention further relates to a preparation method of the anticorrosion coating for steel structures. Background technique [0002] There are many anti-corrosion methods for steel structures, such as electrochemical protection, addition of corrosion inhibitors, and anti-corrosion coatings. Among them, the use of anti-corrosion coatings is the most common. This is mainly due to the wide range of application of anti-corrosion coatings, convenient construction, low cost, and satisfactory results. [0003] As the main means of anti-corrosion technology, anti-corrosion coatings have been valued by many scientists and technicians for many years, and all countries have invested a lot of manpower and material resources in research. Developed countries such as the United Kingdom, the United States, Germany and Japan are still leading the way. According to reports, Japan's ann...

Claims

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Application Information

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IPC IPC(8): C09D5/08C09D123/28
Inventor 王国建刘琳许乾慰
Owner TONGJI UNIV
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