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Modified basalt flake solvent-free epoxy resin anticorrosion coating and preparation method thereof

A technology of epoxy resin and anti-corrosion coating, applied in the field of coatings, can solve the problems of reducing coating anti-corrosion performance, poor wetting performance, and easy agglomeration of scales, so as to improve anti-corrosion performance and mechanical properties, improve coating performance, and excellent coating performance Effect

Inactive Publication Date: 2017-11-24
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Because there are a lot of silicon hydroxyl groups on the surface of basalt scales, and the wettability of organic film-forming substances is poor, the scales are easy to agglomerate and form internal defects, which affects the anti-corrosion performance and service life of the coating. At the same time, corrosive factors such as water easily penetrate along the interface, reducing the coating Anti-corrosion performance of the layer
Adding the coupling agent directly into the resin during the coating preparation process has a poor effect on the modification of the flakes and cannot meet the actual needs

Method used

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  • Modified basalt flake solvent-free epoxy resin anticorrosion coating and preparation method thereof
  • Modified basalt flake solvent-free epoxy resin anticorrosion coating and preparation method thereof
  • Modified basalt flake solvent-free epoxy resin anticorrosion coating and preparation method thereof

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Effect test

Embodiment 1

[0035] Embodiment 1: A kind of modified basalt flake solvent-free epoxy resin anticorrosion coating, including A component and B component mixed according to the mass fraction of 10:1; Wherein:

[0036] Component A contains: bisphenol A epoxy resin E-51, 20 parts by mass; BYK-A530 defoamer produced by BYK, 0.1 parts by mass; Disperbyk163 dispersant produced by BYK, 1 part by mass; 80 Mesh basalt scales, 5 parts by mass; 5 parts by mass of 1,4-butanediol diglycidyl ether diluent;

[0037] Component B includes: phenalkamine curing agent, 5 parts by mass; 1,4-butanediol diglycidyl ether diluent, 1 part by mass.

[0038] The preparation process is as follows:

[0039] 1) The basalt scales are ultrasonically cleaned with deionized water and absolute alcohol, and dried;

[0040] 2) Titanate coupling agent TMC-931 and deionized water are diluted 1:1;

[0041] 3) Soak the basalt scales in the dilution of the coupling agent, filter after soaking for 10 minutes, and bake at 100°C for...

Embodiment 2

[0046] Embodiment 2: A modified basalt flake solvent-free epoxy resin anticorrosion coating, including component A and component B mixed according to the mass fraction of 5:1; wherein:

[0047] Component A contains: bisphenol F epoxy resin, 50 parts by mass; BYK-A088 defoamer produced by BYK, 0.5 parts by mass; Disperbyk162 dispersant produced by BYK, 5 parts by mass; benzyl glycidyl ether diluted Agent, 20 mass parts; 500 order modified order basalt scales, 20 mass parts;

[0048] Component B includes: polyamide curing agent, 10 parts by mass; benzyl glycidyl ether diluent, 5 parts by mass.

[0049] The preparation process is as follows:

[0050] 1) The basalt scales are ultrasonically cleaned with deionized water and absolute alcohol, and dried;

[0051] 2) KH-560: water: methanol is prepared according to the mass ratio of 0.5:9:1, adjust the pH to 5 with acetic acid, add glycerol with 1% volume of the solution, and stir evenly;

[0052] 3) Hydrolysis reaction in constant...

Embodiment 3

[0058] Embodiment 3: A modified basalt flake solvent-free epoxy resin anticorrosion coating, including component A and component B mixed according to the mass fraction of 1:1; wherein:

[0059] Component A contains: bisphenol A epoxy resin E-44, 45 parts by mass; Defom5300 defoamer produced by Deqian Chemical Company, 0.3 parts by mass; Disperbyk164 dispersant produced by BYK, 4 parts by mass; 1,6 -diol diglycidyl ether diluent, 8 parts by mass; 1000 mesh basalt scales, 40 parts by mass;

[0060] Component B includes: phenalkamine curing agent, 25 parts by mass; 1,6-hexanediol diglycidyl ether diluent, 10 parts by mass.

[0061] The preparation process is as follows:

[0062]1) The basalt scales are ultrasonically cleaned with deionized water and absolute alcohol, and dried;

[0063] 2) KH-550: water: methanol is hydrolyzed according to the mass ratio of 20:72:8;

[0064] 3) Soak the basalt scales in the hydrolyzate of KH-550 for 120 minutes, filter and bake at 200°C for 80...

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Abstract

The invention provides a modified basalt flake solvent-free epoxy resin anticorrosion coating and a preparation method thereof. The modified basalt flake solvent-free epoxy resin anticorrosion coating comprises a coupling agent modified basalt flake, namely a coupling agent is diluted or hydrolyzed with a solvent, and a basalt flake is immersed in a coupling agent diluent or hydrolysate for 10 to 120 minutes; then an obtained product is baked at 100 to 200 DEG C for 10 to 120 minutes. According to the coating disclosed by the invention, the basalt flake is pretreated; the hydrophilic end of a hydrolyzed coupling agent molecule is chemically combined with the surface of the flake, and the hydrophobic end of the hydrolyzed coupling agent molecule forms well combination with resin in a use process. Therefore, compared with a conventional mode of directly adding the coupling agent into resin, the pretreatment can uniformly modify the flake, the flake can be better chemically combined with the resin, is higher in wettability for epoxy resin, and can be better uniformly distributed in the resin; the corrosion resistance and the mechanical property of a coating layer are improved.

Description

technical field [0001] The invention relates to a coating, in particular to a basalt scale coating and a preparation method thereof. Background technique [0002] Corrosion has become a serious problem in petrochemical, marine engineering, construction and transportation industries. The existence of corrosion seriously restricts economic development and brings serious safety hazards. [0003] Since the invention of glass flake anti-corrosion coatings in the United States in 1957, countries have invested a lot of resources in the research and development of flake coatings. At the same time, the actual effect of flake coatings has been verified in many engineering fields. Traditional flake coatings mostly use glass flakes as the main filler, but glass flakes contain relatively high alkali oxides, and the acid and alkali resistance is insufficient, and the weather resistance and abrasion resistance also need to be improved. [0004] Commercially available coatings generally co...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D5/08C09D7/12
CPCC09D163/00C08K7/00C08K9/04C08K9/06C09D5/08
Inventor 孙正明闫健施锦杰张亚梅田无边张培根
Owner SOUTHEAST UNIV
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