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Water-based epoxy anti-corrosion coating used below the waterline of warships and preparation method thereof

A water-based epoxy and anti-corrosion coating technology, applied in anti-corrosion coatings, epoxy resin coatings, coatings, etc., can solve the problems of insufficient dense coating, poor impact resistance, poor adhesion, etc., and improve anti-corrosion performance. , Good waterproof performance and long service life

Active Publication Date: 2020-11-13
常州市天安特种涂料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] (2) The coating is not dense enough, the waterproof and permeability resistance is not good, the adhesion is poor, the seawater resistance is not good, the impact resistance is not good, etc.
[0005] (3) The corrosion protection effect is not ideal, and some coatings contain poisonous substances such as lead or chromate, which may pollute the environment during preparation and use

Method used

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  • Water-based epoxy anti-corrosion coating used below the waterline of warships and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A water-based epoxy anti-corrosion coating for ships below the waterline, which contains component A and component B in a mass ratio of 1:1; wherein,

[0035] The components contained in the first component and the parts by mass of each component are as follows:

[0036] 50 parts of epoxy curing agent;

[0037] 0.2 parts of defoamer;

[0038] 70 parts of deionized water;

[0039] 2 parts rheological agent;

[0040] 20 parts of titanium dioxide;

[0041] 40 parts of aluminum-zinc composite powder;

[0042] The components contained in the B component and the parts by mass of each component are as follows:

[0043] 200 parts of epoxy resin.

[0044] In this embodiment, the epoxy resin can be Araldite ® 3961-1.

[0045] Described epoxy curing agent can be water-soluble curing agent Aradur ® 3986, cross-linked with epoxy resin Araldite® 3961-1 to form a network structure paint film.

[0046] The defoamer can be defoamer BYK-024.

[0047] The rheological agent ma...

Embodiment 2

[0060] A water-based epoxy anti-corrosion coating for ships below the waterline, which contains component A and component B in a mass ratio of 1:1; wherein,

[0061] The components contained in the first component and the parts by mass of each component are as follows:

[0062] 55 parts of epoxy curing agent;

[0063] 0.3 part of defoamer;

[0064] 80 parts of deionized water;

[0065] 3 parts rheological agent;

[0066] 25 parts of titanium dioxide;

[0067]45 parts of aluminum-zinc composite powder;

[0068] The components contained in the B component and the parts by mass of each component are as follows:

[0069] 220 parts of epoxy resin.

[0070] In this embodiment, the epoxy resin can be Araldite ® 3961-1.

[0071] Described epoxy curing agent can be water-soluble curing agent Aradur ® 3986, cross-linked with epoxy resin Araldite® 3961-1 to form a network structure paint film.

[0072] The defoamer can be defoamer BYK-024.

[0073] The rheological agent may ...

Embodiment 3

[0086] A water-based epoxy anti-corrosion coating for ships below the waterline, which contains component A and component B in a mass ratio of 1:1; wherein,

[0087] The components contained in the first component and the parts by mass of each component are as follows:

[0088] 60 parts of epoxy curing agent;

[0089] 00.5 parts of defoamer;

[0090] 90 parts of deionized water;

[0091] 4 parts of rheology agent;

[0092] 30 parts of titanium dioxide;

[0093] 50 parts of aluminum-zinc composite powder;

[0094] The components contained in the B component and the parts by mass of each component are as follows:

[0095] 240 parts of epoxy resin.

[0096] In this embodiment, the epoxy resin can be Araldite ® 3961-1.

[0097] Described epoxy curing agent can be water-soluble curing agent Aradur ® 3986, cross-linked with epoxy resin Araldite® 3961-1 to form a network structure paint film.

[0098] The defoamer can be defoamer BYK-024.

[0099] The rheological agent m...

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Abstract

The invention discloses a water-based epoxy anti-corrosion coating used below the waterline of a ship and a preparation method of the coating. The coating is prepared from a component I and a component II in the mass ratio being 1:1; the component I is prepared from components in parts by mass as follows: 50-60 parts of an epoxy curing agent, 0.2-0.5 part of a defoaming agent, 70-90 parts of deionized water, 2-4 parts of a rheological agent, 20-30 parts of titanium dioxide and 40-50 parts of aluminum-zinc composite powder; and the component II is prepared from the component in parts by mass asfollows: 200-240 parts of epoxy resin. The coating has the double anti-corrosion function, the anti-corrosion performance of the coating is improved, the area, where the coating is used, below the waterline of the ship is low in corrosion rate and good in water resistance, and the service life is relatively long.

Description

technical field [0001] The invention relates to a water-based epoxy anticorrosion coating used below the waterline of ships and a preparation method thereof. Background technique [0002] At present, when steel ships are traveling in the ocean, the area below the waterline of the hull is soaked in seawater for a long time and is also scoured by seawater. It will be eroded by various corrosive media, and the stress and wear on the hull will accelerate corrosion. Corrosion will destroy the structure of the ship, reduce the strength of the hull, increase the navigation resistance and reduce the speed, affect the performance and navigation safety and shorten the life of the ship. When the corrosion reaches a certain level, it will cause the ship to lose control during navigation, and even cause serious marine accidents. Corrosion protection in areas below the waterline of ships remains a global challenge. The data show that the corrosion loss in my country reaches at least hun...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D163/00C09D5/10
CPCC09D5/103C09D5/106C09D163/00
Inventor 王素琴陈杰陆振方
Owner 常州市天安特种涂料有限公司