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Novel water-based epoxy coating for ship engine shell, and preparation method thereof

A water-based epoxy and engine technology, applied in the field of coatings, can solve problems such as resource consumption, difficulty in finding, and environmental pollution, and achieve the effects of improving the compactness of the paint film, improving salt spray resistance, and ensuring applicability

Active Publication Date: 2020-12-18
CHONGQING EP ANTICORROSION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although traditional oil-based paint has a price advantage, it consumes resources and pollutes the environment. The development of water-based paint is the general trend of the industry.
[0003] At present, the performance requirements of the marine engine casing coatings in the Chinese market are high, mainly based on oily two-component epoxy, and water-based paints are rarely used
However, most of the water-based two-component epoxy coatings in the prior art can only be applied to one type of substrate, and it is difficult to find a variety of substrate water-based coatings that can simultaneously meet the existence of the ship engine shell, resulting in the adhesion of the coating. Stress and anti-corrosion properties are difficult to meet the needs of the engine casing

Method used

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  • Novel water-based epoxy coating for ship engine shell, and preparation method thereof
  • Novel water-based epoxy coating for ship engine shell, and preparation method thereof
  • Novel water-based epoxy coating for ship engine shell, and preparation method thereof

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preparation example Construction

[0036] A method for preparing a water-based epoxy coating for a novel marine engine shell, comprising the following steps:

[0037] 1) Weigh each raw material according to the proportion, mix deionized water, dispersant, defoamer, pigment, anti-rust pigment, and filler respectively, put them into a sand mill, disperse until the particle size of the mixture is less than 30 μm, and make a slurry;

[0038] 2) Under the condition of 1500r / min, add water-based multifunctional modified epoxy emulsion and polythioepoxy emulsion respectively, stir evenly, add the slurry prepared in step 1), stir evenly, add substrate wetting agent, coupling After adding agent and anti-sedimentation agent, stir evenly to obtain component A;

[0039] 3) Stir and mix the modified polyamide, the modified alicyclic amine, the cosolvent and the anti-flash rust agent evenly to prepare the B component.

Embodiment 1

[0041] A new type of water-based epoxy coating for marine engine casings, including A and B two-components, wherein,

[0042] A component comprises following weight percent raw material:

[0043]

[0044] Component B includes the following weight percent raw materials

[0045]

[0046] Wherein, component A and component B are mixed according to the weight ratio of 6:1 before use.

Embodiment 2

[0048] A new type of water-based epoxy coating for marine engine casings, including A and B two-components, wherein,

[0049] A component comprises following weight percent raw material:

[0050]

[0051]

[0052] Component B includes the following weight percent raw materials

[0053]

[0054] Wherein, component A and component B are mixed according to the weight ratio of 8:1 before use.

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Abstract

The invention provides a novel water-based epoxy coating for a ship engine shell. The coating comprises a component A and a component B in a weight ratio of (6-8): 1. The invention further provides apreparation method of the novel water-based epoxy coating for the ship engine shell. The novel water-based epoxy coating is low in VOC and high in one-time film forming thickness, and the problem thatan anticorrosive coating is poor in adhesive force on various materials (cast iron, aluminum alloy, galvanized sheets, cold rolled steel, hot rolled steel, ABS plastic and rubber tubes) of a ship engine is solved.

Description

technical field [0001] The invention is applied in the technical field of coatings, and in particular relates to a novel water-based epoxy coating for a ship engine casing and a preparation method thereof. Background technique [0002] Under the development trend of low-carbon economy, people pay more and more attention to the pollution of coatings and personal health, and the use of solvent-based coatings with high content of volatile organic compounds is subject to stricter and stricter restrictions. my country promulgated the "Technical Requirements for Environmental Labeling Products" in 1994, the "Comprehensive Emission Standard of Air Pollutants" in 1996, and the "Law of the People's Republic of China on the Prevention and Control of Air Pollution" in 2000, all of which symbolize the country's environmental protection. Pay attention to. It is expected that after the official implementation of the "Volatile Organic Compound Fugitive Emission Control Standard" in 2019, t...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D5/08C08G59/60
CPCC09D163/00C09D5/08C08G59/60C08L2205/025C08L63/00
Inventor 钟鸥谭春尧吴亮
Owner CHONGQING EP ANTICORROSION TECH CO LTD
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