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High-performance seawater-resistant antifouling liquid coating for marine equipment engineering

A technology of marine equipment and liquid coatings, applied in antifouling/underwater coatings, epoxy resin coatings, coatings, etc., can solve problems such as high cost

Pending Publication Date: 2021-07-23
河北道融管道设备制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is also a large amount of expenses every year to compensate for the deceleration caused by the failure of the antifouling paint, and it will cost a lot of money to repaint the antirust and antifouling paint

Method used

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  • High-performance seawater-resistant antifouling liquid coating for marine equipment engineering

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A high-performance seawater anti-fouling liquid coating for marine equipment engineering, including A component and B component, the A component includes the following raw materials by weight: 55 parts of E51 epoxy resin, 5 parts of composite filler, 15 parts calcium carbonate, 10 parts barium sulfate;

[0023] Composite fillers are made by the following steps:

[0024] Step S1: Add anhydrous citric acid into deionized water, stir at a constant speed for 10 minutes, then slowly add ethylenediamine dropwise, stir magnetically for 30 minutes after complete addition, then transfer to a polytetrafluoroethylene reactor, and react at 200°C for 6 hours to prepare To obtain the reaction solution, add dropwise 10% sodium hydroxide aqueous solution to the reaction solution to adjust the pH until the system is neutral, centrifuge, collect the supernatant and dialyze for 24 hours to obtain solution a, control anhydrous citric acid, ethylenediamine The dosage ratio with deionized w...

Embodiment 2

[0032] A high-performance seawater anti-fouling liquid coating for marine equipment engineering, including A component and B component, the A component includes the following raw materials by weight: 60 parts of E51 epoxy resin, 6 parts of composite filler, 16 parts calcium carbonate, 15 parts barium sulfate;

[0033] Composite fillers are made by the following steps:

[0034] Step S1: Add anhydrous citric acid into deionized water, stir at a constant speed for 10 minutes, then slowly add ethylenediamine dropwise, stir magnetically for 30 minutes after complete addition, then transfer to a polytetrafluoroethylene reactor, and react at 200°C for 6 hours to prepare To obtain the reaction solution, add dropwise 10% sodium hydroxide aqueous solution to the reaction solution to adjust the pH until the system is neutral, centrifuge, collect the supernatant and dialyze for 24 hours to obtain solution a, control anhydrous citric acid, ethylenediamine The dosage ratio with deionized w...

Embodiment 3

[0042]A high-performance seawater anti-fouling liquid coating for marine equipment engineering, including A component and B component, the A component includes the following raw materials by weight: 65 parts of E51 epoxy resin, 8 parts of composite filler, 18 parts calcium carbonate, 18 parts barium sulfate;

[0043] Composite fillers are made by the following steps:

[0044] Step S1: Add anhydrous citric acid into deionized water, stir at a constant speed for 10 minutes, then slowly add ethylenediamine dropwise, stir magnetically for 30 minutes after complete addition, then transfer to a polytetrafluoroethylene reactor, and react at 200°C for 6 hours to prepare To obtain the reaction solution, add dropwise 10% sodium hydroxide aqueous solution to the reaction solution to adjust the pH until the system is neutral, centrifuge, collect the supernatant and dialyze for 24 hours to obtain solution a, control anhydrous citric acid, ethylenediamine The dosage ratio with deionized wa...

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Abstract

The invention discloses a high-performance seawater-resistant antifouling liquid coating for marine equipment engineering, which comprises a component A and a component B. The component A comprises the following raw materials in parts by weight: 55-75 parts of E51 epoxy resin, 5-10 parts of composite filler, 15-20 parts of calcium carbonate and 10-20 parts of barium sulfate. The component B comprises the following raw materials in parts by weight: 10-30 parts of a curing agent and 0.5-1 part of a defoaming agent 550. According to the segregation coating technology, the coating obtained after one-time film forming has a functional gradient structure, the bottom layer has the characteristics of being high in bonding strength with a base body, the middle layer has permeation resistance, and the surface layer has the characteristics of being resistant to abrasion and marine organism fouling, so that the complex process of multiple times of forming of primer, intermediate paint and finish paint of traditional coatings is abandoned, and the problem of interlayer defects existing in a multi-layer structure is avoided.

Description

technical field [0001] The invention belongs to the technical field of paint preparation, in particular to a high-performance seawater-resistant and anti-corrosion liquid paint used in marine equipment engineering. Background technique [0002] Whether the ship can navigate safely in the navigation area, its strength requirements are very important. One of the main reasons for the reduction of the strength of the ship is due to the corrosion of the hull and components, and the corrosion of the part of the hull below the waterline and the outer surface of the waterline, Will directly lead to serious hull damage. [0003] The important problem encountered by ships navigating in the sea is the attachment and fouling of marine organisms to the bottom of the ship. The attachment of marine fouling organisms to the bottom of the ship will increase sailing resistance, reduce the speed of the ship, and consume more fuel; when attached to marine breeding nets, it will It will block t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/02C09D5/16C09D7/62C09D7/61
CPCC08K2003/2241C08K2201/011C09D5/1662C09D5/1687C09D163/00C08K9/12C08K3/04C08K3/22
Inventor 马金城宋广成
Owner 河北道融管道设备制造有限公司
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