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High temperature resistant anticorrosion modified epoxy organosilicon coating

An epoxy silicone, anti-corrosion technology, applied in the direction of anti-corrosion coatings, coatings, etc., can solve the problems of lack of heat resistance and corrosion resistance

Inactive Publication Date: 2009-07-22
JIANGSU RONGCHANG NEW MATERIAL TECH
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  • Abstract
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  • Application Information

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Problems solved by technology

Patent 200710098668.4 discloses an epoxy silicone anti-corrosion coating, the cumulative time of salt spray can reach up to 360h, without improving both heat resistance and corrosion resistance

Method used

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Experimental program
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Embodiment Construction

[0027] The present invention will be further described below in conjunction with specific embodiments, but not limited thereto.

[0028] Add 100 parts of epoxy silicone resin ES-06 and 3 parts of fluoropolymer into a reaction vessel equipped with a thermometer, stirring, reflux and dropping devices, start stirring and raise the temperature to 70-90°C, uniformly within 2-3 hours Add dropwise the mixed solution of phosphate monomer PAM-1008 and 40 parts of xylene. After the dropwise addition, keep warm for 3 to 4 hours to complete the synthesis of the resin, and obtain phosphate and fluoropolymer modified epoxy silicone resin ESP -100.

[0029] Phosphate ester and fluoropolymer modified epoxy silicone resins ESP-200 and ESP-300 were prepared using phosphate ester monomers PAM-200 and PAM-300 respectively, and the preparation method was the same as that of ESP-100.

[0030] Table 1 (the embodiment unit is parts by weight in the table)

[0031] components

raw materi...

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Abstract

The invention relates to a high-temperature resistant anti-corrosion modified epoxy organic silicon coating and a preparation method. The coating uses organic phosphate and fluoropolymer to modify epoxy organic silicon resin which originally has excellent high-temperature resistant and anti-corrosion properties; with organic phosphate group introduced, not only the high-temperature resistance of resin is improved, but also the later anticorrosion property of the coating can be improved to certain extent. In the film forming process of the coating, the organic phosphate group and substrate metal form a compact phosphate protective film, thus passivating metal surface, preventing water molecules and salt ions from being contacted with metal and further leading the coating to have excellent anticorrosion function. With the fluoropolymer with high-temperature resistance and chemical corrosion resistance introduced, the polymerization between the fluoropolymer and active organic silicon group can distinctly improve the high-temperature resistance of resin. The matched use of the modified epoxy organic silicon resin and a high-temperature resistant pigment can lead the coating to not only maintain proper physical mechanical property, but also have excellent anticorrosion performance under the high temperature condition of 350 DEG C.

Description

technical field [0001] The invention relates to a high-temperature-resistant anti-corrosion paint, in particular to a modified epoxy organic silicon anti-corrosion paint resistant to a high temperature of 350°C and a preparation method thereof. Background technique [0002] In recent years, with the rapid development of high-tech, the requirements for high-temperature-resistant structural materials and high-temperature-resistant coatings have become higher and higher. Practice has proved that high-temperature structural materials must have good high-temperature strength and excellent anti-corrosion properties. Oxidation and corrosion resistance are more difficult and expensive. In contrast, high-temperature-resistant coatings have the above two advantages, which can not only improve the high-temperature resistance of materials, but also have certain corrosion resistance. Therefore, since the 1950s, people's research on high temperature resistant coatings has been in the asc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D183/06C09D5/08
Inventor 黄顺道常春陈群
Owner JIANGSU RONGCHANG NEW MATERIAL TECH
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