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Heat resistant anticorrosive composite polyphenylene sulfide epoxy paint and its prepn

An anti-corrosion coating, polyphenylene sulfide technology, applied in anti-corrosion coatings, epoxy resin coatings, chemical instruments and methods, etc. The effect of strong temperature resistance, long service life and small thermal expansion coefficient

Inactive Publication Date: 2007-01-03
NEW MATERIAL INST OF SHANDONG ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are three limitations of epoxy resin used in anti-corrosion coatings: one is that epoxy resin has poor weather resistance and is easy to pulverize; the other is that epoxy resin has poor ability to withstand strong corrosive media at higher temperatures; Oxygen resin is brittle

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Example 1: Polyphenylene sulfide epoxy composite high temperature resistant anti-corrosion coating, the anti-corrosion coating consists of three parts: primer, top coat and intermediate coating.

[0048] The weight ratio of each component of primer is as follows:

[0049] Polyphenylene sulfide resin: epoxy resin E12: glass flakes: dicyandiamide = 100:40:20:5.

[0050] The weight ratio of each component of topcoat is as follows:

[0051] Polyphenylene sulfide resin: epoxy resin E12: corundum: 4,4'-diaminodiphenylsulfone: dicyandiamide=50:80:30:4:6.

[0052] The weight ratio of each component of intermediate coating paint is as follows:

[0053] Polyphenylene sulfide resin: epoxy resin E12: graphite: corundum: glass flakes: sebacic acid dihydrazide: 4,4'-diaminodiphenylsulfone=100:100:20:35:25:8:5.

[0054] The inorganic fillers (including graphite, corundum and glass flakes) are firstly treated with a titanate coupling agent.

[0055] Inorganic filler treatment metho...

Embodiment 2

[0059] Example 2: Polyphenylene sulfide epoxy composite high temperature resistant anti-corrosion coating, the anti-corrosion coating consists of three parts: primer, top coat and intermediate coating.

[0060] The weight ratio of each component of primer is as follows:

[0061] Polyphenylene sulfide resin: epoxy resin E12: glass flakes: dicyandiamide = 90:60:15:6.

[0062] The weight ratio of each component of topcoat is as follows:

[0063] Polyphenylene sulfide resin: epoxy resin E12: corundum: 4,4'-diaminodiphenylsulfone: dicyandiamide=50:100:40:5:8.

[0064] The weight ratio of each component of intermediate coating paint is as follows:

[0065] Polyphenylene sulfide resin: epoxy resin E12: graphite: corundum: glass flakes: sebacic acid dihydrazide: 4,4'-diaminodiphenylsulfone=80:80:25:45:25:5:6.

[0066] The inorganic fillers (including graphite, corundum and glass flakes) are firstly treated with a titanate coupling agent.

[0067] Inorganic filler treatment method:...

Embodiment 3

[0069] Example 3: Polyphenylene sulfide epoxy composite high temperature resistant anti-corrosion coating, the anti-corrosion coating consists of three parts: primer, top coat and intermediate coating.

[0070] The weight ratio of each component of primer is as follows:

[0071] Polyphenylene sulfide resin: epoxy resin E12: glass flakes: dicyandiamide = 90:50:28:6.

[0072] The weight ratio of each component of topcoat is as follows:

[0073] Polyphenylene sulfide resin: epoxy resin E12: corundum: 4,4'-diaminodiphenylsulfone: dicyandiamide=50:90:28:3.5:6.

[0074] The weight ratio of each component of intermediate coating paint is as follows:

[0075] Polyphenylene sulfide resin: epoxy resin E12: graphite: corundum: glass flakes: sebacic acid dihydrazide: 4,4'-diaminodiphenylsulfone=90:90:20:40:23:6:4.5.

[0076] The inorganic fillers (including graphite, corundum and glass flakes) were first treated with a titanate coupling agent, and the treatment method was the same as i...

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Abstract

The present invention discloses one kind of heat resistant anticorrosive composite polyphenylene sulfide epoxy paint and its preparation process. The anticorrosive paint consists of primer, finishing paint and intercoat paint. The primer consists of polyphenylene sulfide, epoxy resin, glass scale and cyanamide dimmer. The finishing paint consists of polyphenylene sulfide, epoxy resin, silicon carbide, 4, 4'-diamino diphenyl sulphone and cyanamide dimmer. The intercoat paint consists of polyphenylene sulfide, epoxy resin, silicon carbide, glass scale, dihydrazide sebacate and 4, 4'-diamino diphenyl sulphone. The anticorrosive paint produces no sag, and can form homogeneous and smooth coating with excellent physical and chemical performance, high heat resistance, high corrosion resistance, high impact strength, and high insulating performance.

Description

technical field [0001] The invention relates to a polyphenylene sulfide epoxy composite high temperature resistant anticorrosion coating and a preparation method thereof. Background technique [0002] High-temperature anti-corrosion coatings refer to coatings that have long-term anti-corrosion properties under high temperature and severe corrosive environments (acid, alkali, etc.). Due to the need to withstand high temperature and corrosive environments at the same time, the requirements for materials are very high. With the development of the national economy, special anti-corrosion coatings are more and more widely used in aviation, military and other fields. The development of high temperature anti-corrosion coating has more and more important significance. [0003] Polyphenylene sulfide (PPS) has special high temperature resistance and chemical stability, as well as good mechanical strength and electrical insulation properties. These properties make it widely used and p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D181/02C09D163/00C09D5/08C09D7/00C09C3/06
Inventor 李晓俊刘丰
Owner NEW MATERIAL INST OF SHANDONG ACADEMY OF SCI
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