Special impermeable modified epoxy coating for denitrating device and preparation method thereof

An epoxy coating and modification technology, used in epoxy resin coatings, anti-corrosion coatings, polyurea/polyurethane coatings, etc., can solve the problems of high cost and high cost of pure epoxy coatings, and low cost of modified epoxy coatings. , to achieve the effect of improving environmental stress cracking resistance, preventing precipitation, and good fullness

Inactive Publication Date: 2015-05-13
JIANGSU XIN AN NEW MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the cost of pure epoxy coatings is high at present. Chinese Patent No. CN200810140802.7, the title of the invention is "A Recoatable General-Purpose Epoxy Antirust Paint Realizing Four-season Construction with a Single Curing Agent", which discloses a low molecular weight dual Phenol A epoxy resin is used as the base material, and anti-corrosion coatings with branched reactive diluents are introduced into the formula. This patent belongs to pure epoxy resin coatings, and the cost is high. Compared with the high-cost pure epoxy resin coatings, the modified ring Oxygen coatings are attracting attention due to their low cost and comparable performance to pure epoxy coatings

Method used

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  • Special impermeable modified epoxy coating for denitrating device and preparation method thereof

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Embodiment 1

[0049] This embodiment provides an impermeable modified epoxy coating for a denitration device. The coating includes two components, A and B, and the weight ratio of the A component to the B component is 5:1; The counter includes the following components:

[0050] 45 parts of epoxy resin, 19 parts of 500 mesh graphite flakes, 10 parts of polyazelaic anhydride, 10 parts of precipitated barium sulfate, 1 part of silicon-based polymerizer, 1 part of anti-sag agent, 2 parts of pigments and fillers, 15 parts of modifier additives ;

[0051] The modified additive includes the following components in parts by mass: 25 parts of polyisobutylene, 16 parts of bisphenol F novolac epoxy resin, and 45 parts of hydrocarbon petroleum resin;

[0052] Component B includes the following components in parts by mass:

[0053] 13 parts of curing agent, 42 parts of solvent, 12 parts of accelerator, 20 parts of polyurethane;

[0054] Among them, the solvent is a mixture of paraffin and 200# solven...

Embodiment 2

[0069] This embodiment provides a special coating for a modified epoxy denitration device, the coating includes two components, A and B, and the weight ratio of the A component to the B component is 5.5:1;

[0070] 55 parts of epoxy resin, 20 parts of 500-mesh graphite flakes, 11 parts of polyazelaic anhydride, 12 parts of precipitated barium sulfate, 4 parts of silicon-based polymerizer, 2 parts of anti-sag agent, 4 parts of pigments and fillers, and 17 parts of modification additives;

[0071] The modified additive includes the following components in parts by mass: 28 parts of polyisobutylene, 20 parts of bisphenol F novolac epoxy resin, and 48 parts of hydrocarbon petroleum resin;

[0072] Component B includes the following components in parts by mass:

[0073] 14 parts of curing agent, 45 parts of solvent, 14 parts of accelerator, 25 parts of polyurethane;

[0074] Among them, the solvent is a mixture of paraffin and 200# solvent oil, wherein the mass ratio of paraffin a...

Embodiment 3

[0089] The present embodiment provides a special coating for a modified epoxy denitration device, the coating includes two components, A and B, and the weight ratio of the A component to the B component is 6:1;

[0090] 62 parts of epoxy resin, 28 parts of 500 mesh graphite flakes, 12 parts of polyazelaic anhydride, 15 parts of precipitated barium sulfate, 5 parts of silicon-based polymerization agent, 3 parts of anti-sag agent, 6 parts of pigments and fillers, 21 parts of modification additives ;

[0091] The modified additive includes the following components in parts by mass: 30 parts of polyisobutylene, 25 parts of bisphenol F novolac epoxy resin, and 55 parts of hydrocarbon petroleum resin;

[0092] Component B includes the following components in parts by mass:

[0093] 15 parts of curing agent, 55 parts of solvent, 17 parts of accelerator, 26 parts of polyurethane;

[0094]Among them, the solvent is a mixture of paraffin wax and 200# solvent oil, and the mass ratio of...

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Abstract

The invention discloses a special impermeable modified epoxy coating for a denitrating device and a preparation method thereof. The impermeable modified epoxy coating comprises a component A and a component B in a weight ratio of (6: 1)-(5: 1); the component A comprises the following substances: epoxy resin, an inert flaky material, a plasticizer, precipitated barium sulfate, an auxiliary agent, an anti-sagging agent, pigment, a filler and a modifying additive; the component B comprises the following substances: a curing agent, a solvent, an accelerant and a toughening agent. The special modified epoxy coating for the denitrating device, provided by the invention, is high in bonding power, is unlikely to fall off, is good in impermeability and good in chemical agent resistance; the overall protective capability of the coating is improved; the service life of the denitrating device is prolonged; the preparation method has the advantages of simple operation, low cost and the like.

Description

technical field [0001] The invention relates to a special coating for a denitrification device and a preparation method thereof, in particular to a special anti-seepage modified epoxy coating for a denitrification device and a preparation method thereof, belonging to the field of coating material preparation. Background technique [0002] Denitrification is an essential technical point in the thermal power industry. The reason is that my country's energy consumption is dominated by coal, and about 90% of sulfur dioxide, 67% of nitrogen oxides, and 70% of soot emissions come from coal combustion. Among them, flue gas emissions from coal-fired boilers are the most prominent. NOx produced by coal combustion is dominated by NO (more than 90%), followed by NO2. It is easy to cause acid rain and other hazards, and it also has a great impact on human health. Therefore, denitrification treatment is necessary. At present, my country's thermal power mainly adopts SCR technology, tha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D175/04C09D5/08C09D7/12
CPCC09D163/00C08L2205/02C08L2205/035C09D5/08C09D7/61C09D7/70C09D157/02C08L23/22C08L63/04C08L57/02C08L75/04C08K13/04C08K7/00C08K2003/3045C08K2003/2237C08K2003/168C08L63/00
Inventor 张望杨松林
Owner JIANGSU XIN AN NEW MATERIALS TECH
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