Ocean epoxy zinc-rich anti-corrosion powder coating and preparation method thereof

An epoxy zinc-rich powder coating technology, applied in powder coatings, anti-corrosion coatings, epoxy resin coatings, etc., can solve the problems of affecting service life and safety, lower coating anti-corrosion performance, high zinc powder content, etc., to achieve Effects of reducing zinc oxide mist, improving anti-corrosion performance, and improving binding force

Active Publication Date: 2014-10-08
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The content of zinc in the coating is usually more than 70%, resulting in too high zinc powder content in the coating, the coating is easy to be porous, and the adhesion decreases, which affects the bonding force between the upper coating and the zinc-rich coating, making the coating's corrosion resistance Reduced performance, affecting its service life and safety on the seabed

Method used

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  • Ocean epoxy zinc-rich anti-corrosion powder coating and preparation method thereof
  • Ocean epoxy zinc-rich anti-corrosion powder coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A kind of marine epoxy zinc-rich anticorrosion powder coating, is made up of the following raw materials of weight part:

[0026] 40 parts of E-12 epoxy resin, 16 parts of novolac epoxy resin, 10 parts of trimethylhexamethylenediamine, 2 parts of polyvinyl butyral, 0.2 parts of dimethylimidazole, aminopropyl triethoxy 3 parts of base silane, 20 parts of zinc powder with a particle size of 5-20 μm, 10 parts of aluminum powder with a particle size of 100 nm, 1 part of graphene, 0.6 part of ethylene bisstearamide, 0.8 part of polyethylene wax powder, antioxidant Agent DNP 2 parts, composite filler 10 parts;

[0027] Above-mentioned composite filler is made up of the raw material of following weight part:

[0028] 50 parts of clay, 50 parts of iron slag powder, 5 parts of nano jade powder, 2 parts of aluminum nitride powder, 2 parts of aluminum hydroxide powder, 2 parts of rare earth powder, 2 parts of vanadium diboride, 2,6-di-tert-butyl 1 part of p-cresol, 0.1 part of i...

Embodiment 2

[0033] A kind of marine epoxy zinc-rich anticorrosion powder coating, is made up of the following raw materials of weight part:

[0034] 50 parts of E-12 epoxy resin, 12 parts of novolac epoxy resin, 7 parts of trimethylhexamethylenediamine, 1 part of polyvinyl butyral, 0.1 part of dimethylimidazole, aminopropyl triethoxy 2 parts of silane, 16 parts of zinc powder with a particle size of 5-20 μm, 13 parts of aluminum powder with a particle size of 100 nm, 3 parts of graphene, 1 part of ethylene bisstearamide, 0.1 part of polyethylene wax powder, antioxidant 1 part of DNP, 15 parts of composite filler.

[0035] Above-mentioned composite filler is made up of the raw material of following weight part:

[0036] 40 parts of clay, 45 parts of iron slag powder, 7 parts of nano jade powder, 1 part of aluminum nitride powder, 1 part of aluminum hydroxide powder, 1 part of rare earth powder, 1 part of vanadium diboride, 2,6-di-tert-butyl 2 parts of p-cresol, 0.2 part of di-n-octyl tin...

Embodiment 3

[0040] A kind of marine epoxy zinc-rich anticorrosion powder coating, is made up of the following raw materials of weight part:

[0041] 45 parts of E-12 epoxy resin, 9 parts of novolak epoxy resin, 4 parts of trimethylhexamethylenediamine, 2 parts of polyvinyl butyral, 0.1 part of dimethylimidazole, aminopropyl triethoxy 1 part of base silane, 15 parts of zinc powder with a particle size of 5-20 μm, 15 parts of aluminum powder with a particle size of 100 nm, 2 parts of graphene, 1 part of ethylene bisstearamide, 0.1 part of polyethylene wax powder, antioxidant Agent DNP1 part, composite filler 20 parts.

[0042] Above-mentioned composite filler is made up of the raw material of following weight part:

[0043]45 parts of clay, 40 parts of iron slag powder, 6 parts of nano jade powder, 2 parts of aluminum nitride powder, 1 part of aluminum hydroxide powder, 2 parts of rare earth powder, 1 part of vanadium diboride, 2,6-di-tert-butyl 2 parts of p-cresol, 0.3 parts of di-n-octy...

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Abstract

The invention provides an ocean epoxy zinc-rich anti-corrosion powder coating and a preparation method thereof. The coating is prepared from the following raw materials: E-12 epoxy resin, novolac epoxy, trimethyl hexamethylenedi, polyvinyl butyral, dimethyl imidazole, aminopropyl triethoxy silane, zinc powder, aluminum powder, graphene, ethylene bis stearamide, polyethylene wax powder, an antioxidant DNP, and compound filler. The preparation method comprises the following steps: uniformly mixing zinc powder, aluminum powder and graphene, adding aminopropyl triethoxy silane, stirring to disperse so as to obtain a component A, mixing the E-12 epoxy resin, novolac epoxy, polyvinyl butyral and polyethylene wax powder, preheating, cooling down to room temperature, mixing the component A, the mixture and the rest raw materials, carrying out melt extrusion by virtue of an extruder, tabletting, carrying out air cooling, grinding into powder, and sieving. The coating can protect a steel structure from being corroded by various corrosive media for a long term, is non-toxic, pollution-free and salt mist resistant, and has strong adhesive force and shock resistance.

Description

technical field [0001] The invention belongs to the technical field of powder coatings, in particular to a marine epoxy zinc-rich anticorrosion powder coating. Background technique [0002] As a country's important energy and strategic materials, oil and gas resources play a vital role in the fields of modern military, industry and human life. With the depletion of onshore oil and gas resources caused by over-exploitation, the competition, exploitation and utilization of offshore oil and gas have become the focus and focus of military, political, economic and diplomatic concerns of all countries in the world today. At present, the development of offshore oil and gas resources is usually carried out by means of large ships and pipelines. Among them, submarine pipeline transportation has the outstanding advantages of high safety and low cost, and has been adopted by most countries in the world. [0003] Although pipeline transportation has many advantages, submarine pipelines...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D163/02C09D163/04C09D5/10C09D5/03
Inventor 姚正军杜咪咪
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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