Permeation consolidation type solvent-free epoxy anticorrosive coating, and preparation method and application thereof

An epoxy anti-corrosion coating, solvent-free technology, applied in anti-corrosion coatings, epoxy resin coatings, coatings, etc., can solve the problems of lack of permeability, inability to improve concrete compactness, insufficient coating adhesion, etc. Wetting ability, excellent corrosion resistance and mechanical properties, the effect of reducing corrosion factors

Active Publication Date: 2016-01-13
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the shortcomings of commonly used anti-corrosion materials for concrete structures, such as lack of permeability, insufficient coating adhesion, and inability to improve concrete compactness, the purpose of the present invention is to provide a solvent-free epoxy anti-corrosion coating that penetrates and consolidates

Method used

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  • Permeation consolidation type solvent-free epoxy anticorrosive coating, and preparation method and application thereof
  • Permeation consolidation type solvent-free epoxy anticorrosive coating, and preparation method and application thereof
  • Permeation consolidation type solvent-free epoxy anticorrosive coating, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] 28 parts of epoxy resin F-44, 25 parts of enhanced reactive solvent neopentyl glycol diglycidyl ether, 25 parts of enhanced reactive solvent butyl glycidyl ether, 19 parts of penetrating reactive solvent isophorone , 1 part of interface modifier CT-114 and 2 parts of penetration enhancer sodium lauryl polyoxyethylene ether sulfate were stirred and mixed at 500 rpm for 15 minutes to obtain component A; 39 parts of functional curing agent ethylenediamine, 30 parts Curing regulator 591 # , 12 parts of bifunctional curing agent T-31, 17 parts of curing accelerator triphenylphosphine, and 2 parts of condensation catalyst phosphazene were stirred and mixed for 15 minutes at 300 rpm to obtain component B; when used, components A and B were mixed in a ratio of 100:24 Mix by weight ratio, and stir at 200 rpm for 10 minutes to obtain a self-permeable and consolidated epoxy anticorrosion coating; the stated parts are parts by weight. The performance test results of the coating ar...

Embodiment 2

[0043] 18 parts of epoxy resin E-51, 27 parts of enhanced reactive solvent glycerol triglycidyl ether, 20 parts of penetrating reactive solvent diacetone alcohol, 30 parts of penetrating reactive solvent acetone, 2 parts of interface modification Agent KH560, 2 parts of interface modifier CT-56, 0.5 part of penetration enhancer fatty alcohol polyoxyethylene ether AEO-9, 0.5 part of penetration enhancer cetyltrimethylammonium bromide, stirred and mixed at 500rpm for 15min, Get the first component; 22 parts of functional curing agent diethylenetriamine, 30 parts of curing regulator 593 # , 33 parts of dual-function curing agent 810 # , 6 parts of curing accelerator methyltetrahydrophthalic anhydride, 8 parts of curing accelerator dimethylaniline, 1 part of condensation catalyst thiosemicarbazide were stirred and mixed at 300rpm for 15min to obtain component B; 33% by weight, and stirred at 200rpm for 10min to obtain a self-permeable and consolidated epoxy anticorrosion coating;...

Embodiment 3

[0045] 42 parts of epoxy resin F-44, 11 parts of enhanced reactive solvent butyl glycidyl ether, 20 parts of permeable reactive solvent methyl isobutyl ketone, 20 parts of permeable reactive solvent diacetone alcohol, 5 parts Interface modifier KH570, 2 parts of penetration enhancer alkyl trimethyl quaternary ammonium bromide (hexadecyl trimethyl ammonium bromide) were stirred and mixed at 500 rpm for 15 minutes to obtain component A; 5 parts of functional curing agent Triethylenetetramine, 14 parts curing regulator 650 # , 14 parts curing regulator 593 # , 25 parts of dual-function curing agent 810 # , 25 parts of dual-function curing agent 910 # , 5 parts of curing accelerator triethanolamine, 7 parts of curing accelerator 2,4,6-tris(dimethylaminomethyl)phenol, and 5 parts of condensation catalyst cinchona were stirred and mixed for 15 minutes at 300 rpm to obtain component B; When using, mix A and B components in a weight ratio of 100:7, and stir at 200 rpm for 10 minute...

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Abstract

The invention belongs to the technical field of anticorrosive coatings, and discloses a permeation consolidation type solvent-free epoxy anticorrosive coating, and a preparation method and an application thereof. The anticorrosive coating consists of a component A and a component B. The component A consists of the following components in parts by weight: 18-89 parts of epoxy resin, 5-50 parts of enhanced type reactive solvents, 5-60 parts of permeation type reactive solvents, 0-5 parts of interfacial modifiers and 0-3 parts of permeation enhancers. The component B consists of the following components in parts by weight: 5-95 parts of functional curing agents, 0-30 parts of curing regulators, 0-50 parts of double-function regulators, 0-40 parts of curing accelerators and 0-5 parts of condensation catalysts. The coating is low in viscosity and excellent in permeability, and has an excellent mechanical property after being cured. In addition, the permeation consolidation type solvent-free epoxy anticorrosive coating disclosed by the present invention has good wettability and viscocity with concrete, and strength of the concrete can be improved, water on the surface of the concrete can be removed, and surface corrosion factors of the concrete are reduced.

Description

technical field [0001] The invention belongs to the technical field of anti-corrosion coatings, and relates to a solvent-free epoxy anti-corrosion coating, in particular to an infiltration and consolidation type solvent-free epoxy anti-corrosion coating and its preparation method and application. Background technique [0002] The annual economic loss caused by corrosion in the world is as high as 1 trillion U.S. dollars, which is about 6 times the total economic loss caused by natural disasters such as earthquakes, floods, and typhoons. The annual economic loss caused by corrosion in my country reaches 1.2 trillion yuan, and about 441 bird's nests, 7 Three Gorges projects, and 46 Qinghai-Tibet railways can be built. Corrosion damage has become an important factor hindering my country's economic development. At the same time, the above-mentioned infrastructure anti-corrosion problems that need to be solved have also brought development opportunities for the development of my ...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D5/08C09D7/00C09D7/12
Inventor 张广照马春风张国梁
Owner SOUTH CHINA UNIV OF TECH
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