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Heavy-duty anticorrosive solvent-free epoxy basalt scale coating and preparation method thereof

A basalt, solvent-free technology, applied in the direction of anti-corrosion coatings, epoxy resin coatings, coatings, etc., can solve the problems of high content, insufficient wear resistance, insufficient acid and alkali resistance, etc., achieve excellent coating performance and reduce corrosion speed , Outstanding anti-corrosion performance

Inactive Publication Date: 2017-06-09
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, glass flake anti-corrosion coatings have high content of alkaline oxide silica in glass flakes, insufficient acid and alkali resistance, poor weather resistance, insufficient wear resistance and other defects, which lead to short protection time of the coating coating on the metal substrate, up to less than expected effect
[0004] General anti-corrosion coatings contain organic solvents. During the curing process of the coating, the volatilization of the solvent leaves holes, resulting in a decline in performance; the volatilization of solvents also threatens the health of personnel and brings harm to the environment; relevant national policies also restrict Development of Solvent Coatings

Method used

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  • Heavy-duty anticorrosive solvent-free epoxy basalt scale coating and preparation method thereof
  • Heavy-duty anticorrosive solvent-free epoxy basalt scale coating and preparation method thereof
  • Heavy-duty anticorrosive solvent-free epoxy basalt scale coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Parts by mass of group A: bisphenol A epoxy resin E-51, 40 parts by mass, 0.2 parts by mass of BYK-A530 defoamer produced by BYK, 1 part by mass of Disperbyk163 dispersant produced by BYK, 1,4- 5 parts by mass of butanediol diglycidyl ether diluent, 0.4 parts by mass of silane coupling agent gamma-aminopropyltriethoxysilane, 5 parts by mass of 200 mesh basalt flakes, 2 parts by mass of aluminum tripolyphosphate as antirust filler; Component B: 10 parts by mass of phenalkamine curing agent, 5 parts by mass of 1,4-butanediol diglycidyl ether diluent.

[0036] The preparation process is as follows:

[0037] 1) Add defoamer, silane coupling agent, dispersant, and diluent to epoxy resin, stir at 300-500 rpm for 15-20 minutes, and let stand for 24 hours to obtain a mixed solution.

[0038] 2) Add basalt flakes and antirust fillers to the mixture obtained in step 1), stir at 300-500 rpm for 10-20 minutes, and then ultrasonically disperse for 5-10 minutes to obtain component A...

Embodiment 2

[0042] Parts by mass of group A: 50 parts by mass of bisphenol F epoxy resin, 0.5 parts by mass of BYK-A088 defoamer produced by BYK, 5 parts by mass of Disperbyk162 dispersant produced by BYK, 10 parts by mass of benzyl glycidyl ether diluent , 1 mass part of silane coupling agent γ-(2,3-epoxypropoxy)propyltrimethoxysilane, 20 mass parts of 325 mesh basalt flakes, 3 mass parts of antirust filler zinc phosphate; component B: polyamide 25 parts by mass of curing agent, 5 parts by mass of benzyl glycidyl ether diluent.

[0043] The preparation process is as follows:

[0044] 1) Add defoamer, silane coupling agent, dispersant, and diluent to epoxy resin, stir at 300-500 rpm for 15-20 minutes, and let stand for 24 hours to obtain a mixed solution.

[0045] 2) Add basalt flakes and antirust fillers to the mixture obtained in step 1), stir at 300-500 rpm for 10-20 minutes, and then ultrasonically disperse for 5-10 minutes to obtain component A.

[0046] 3) Mix the curing agent and...

Embodiment 3

[0049] Parts by mass of group A: bisphenol A epoxy resin E-44, 45 parts by mass, 0.3 parts by mass of Defom5300 defoamer produced by Deqian Chemical Company, 4 parts by mass of Disperbyk164 dispersant produced by BYK, 1,6-hexylene 8 parts by mass of alcohol diglycidyl ether thinner, 0.8 parts by mass of silane coupling agent γ-(methacryloyloxy)propyltrimethoxysilane, 30 parts by mass of 500 mesh basalt flakes, antirust filler calcium phosphomolybdate 4 parts by mass; component B includes: 10 parts by mass of phenalkamine curing agent, 10 parts by mass of 1,6-hexanediol diglycidyl ether diluent.

[0050] The preparation process is as follows:

[0051] 1) Add defoamer, silane coupling agent, dispersant, and diluent to epoxy resin, stir at 300-500 rpm for 15-20 minutes, and let stand for 24 hours to obtain a mixed solution.

[0052] 2) Add basalt flakes and antirust fillers to the mixture obtained in step 1), stir at 300-500 rpm for 10-20 minutes, and then ultrasonically dispers...

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PUM

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Abstract

The invention relates to a heavy-duty anticorrosive solvent-free epoxy basalt scale coating and a preparation method thereof. The coating takes solvent-free epoxy resins as a film-forming substance and basalt scales as main rust-proof fillers, and solvent-free epoxy resins, the basalt scales and a plurality of additives prepare into the heavy-duty anticorrosive solvent-free epoxy basalt scale coating. The preparation method of the coating includes the steps: 1) mixing defoaming agents, silane coupling agents, dispersing agents, thinners, the epoxy resins, the basalt scales and the rust-proof fillers to obtain a first component; 2) mixing epoxy curing agents and the thinners to obtain a second component; 3) mixing the first component and the second component according to the weight ratio of (2-4): 1 to obtain the heavy-duty anticorrosive solvent-free epoxy basalt scale coating. The coating has labyrinth effects of anticorrosive coatings of scales kinds and has also higher acid and alkali resistance, weather resistance and abrasion resistance, and coating layers prepared by the coating have higher compactness, economy and safety and are used for heavy-duty anticorrosive field such as buildings and ocean engineering and particularly applicable to reinforced concrete structures.

Description

technical field [0001] The invention relates to a heavy-duty anti-corrosion solvent-free epoxy basalt scale anti-corrosion coating and a preparation method thereof, belonging to the technical field of anti-corrosion coatings. Background technique [0002] Anti-corrosion coatings are widely used in petrochemical, construction, transportation, marine engineering, port engineering and other steel structures. [0003] At present, glass flake anti-corrosion coatings have high content of alkaline oxide silica in glass flakes, insufficient acid and alkali resistance, poor weather resistance, insufficient wear resistance and other defects, which lead to short protection time of the coating coating on the metal substrate, up to Less than expected effect. [0004] General anti-corrosion coatings contain organic solvents. During the curing process of the coating, the volatilization of the solvent leaves holes, resulting in a decline in performance; the volatilization of solvents also ...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D5/08C09D7/12
CPCC09D163/00C08K3/22C08K3/34C08K7/00C08K2003/2206C08K2003/2227C08K2003/2241C08K2003/2272C09D5/08C09D7/61C08L77/00C08K13/04
Inventor 施锦杰闫健孙正明张亚梅张培根田无边丁健翔
Owner SOUTHEAST UNIV
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