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An epoxy zinc-rich primer, two-component technology, used in epoxy resin coatings, coatings, anti-corrosion coatings and other directions, can solve problems such as health effects, and achieve the effects of long pot life, low cost and simple process
Inactive Publication Date: 2009-04-15
MCC ENERGY SAVING & ENVIRONMENTAL PROTECTION
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Problems solved by technology
At the same time, due to the large proportion of zinc powder in the paint film, a large amount of zinc oxide mist will be produced during welding, which will have a certain impact on the health of the staff.
Method used
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Effect test
Embodiment 1
[0026] Select 23 kg of 60% epoxy resin liquid as film-forming material, 54 kg of zinc powder as pigment, 10 kg of composite iron-titanium powder, 5 kg of titanium dioxide, 2 kg of mica powder, 3 kg of wollastonite powder as filler, and 1 kg of organic bentonite Powder is used as anti-sedimentation aid, 9 kg of xylene is used as solvent, mixed evenly and then dispersed at high speed, as component A.
[0027] Select the ratio of ethylenediamine:xylene=40:60 as the second component.
[0028] Mix components A and B according to a mass ratio of 10:1, and then add an appropriate amount of xylene solvent for dilution to prepare a two-component epoxy zinc-rich primer.
Embodiment 2
[0030] Select 28 kg of 50% epoxy resin liquid as film-forming material, 54 kg of zinc powder as pigment, 10 kg of composite iron-titanium powder, 5 kg of barite powder, 2 kg of talcum powder, 2 kg of wollastonite powder as filler, 2 kg of gas phase Silica is used as an anti-sedimentation aid, and 9 kg of toluene is used as a solvent. After mixing evenly, it is dispersed at a high speed and used as the first component.
[0031] Select triethylenetetramine:toluene=40:60 as component B.
[0032] Mix components A and B according to a mass ratio of 12:1, and then add an appropriate amount of toluene solvent for dilution to prepare a two-component epoxy zinc-rich primer.
Embodiment 3
[0034] Select 23 kg of 60% epoxy resin liquid as film-forming material, 60 kg of zinc powder as pigment, 9 kg of composite iron-titanium powder, 2 kg of talcum powder, 3 kg of wollastonite powder as filler, and 1 kg of hydrogenated castor oil as anti-sedimentation aid Agent, 9 kg of toluene as a solvent, mixed evenly and dispersed at a high speed, as the first component.
[0035] Select hexamethylenediamine:toluene=40:60 ratio as the second component.
[0036] Mix components A and B according to a mass ratio of 13:1, and then add an appropriate amount of toluene solvent for dilution to prepare a two-component epoxy zinc-rich primer.
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Abstract
The invention discloses a dual-component epoxy zinc-rich primer with excellent mechanical performance of a coating layer, low construction cost, high efficiency and prominent anti-corrosion performance. The dual-component epoxy zinc-rich primer comprises A and B components; wherein, the A component comprises the following components by parts by weight: 14 parts of epoxy resin, 54 to 71 parts of zinc powder, 4 to 20 parts of filler, 1 to 3 parts of anti-settlement auxiliary agent and 9 parts of solvent; the B component comprises the following components by weight percentage: 40 percent curing agent and 60 percent solvent; and the mixture ratio by weight of the A component to the B component is 8:1 to 15:1. The dual-component epoxy zinc-rich primer has the advantages of low content of the zinc powder in a paint film, low cost, simple technology and no need of special equipment; the use of the dual-component epoxy zinc-rich primer can realize the curing at room temperature, the paint film has excellent adhesion, flexibility and anti-corrosion effect, the applicable period is long and can achieve 4 hours, the construction is convenient, and the dual-component epoxy zinc-rich primer can be applied in anti-corrosion primers of pipelines, plant facilities, ships, bridges and other steel structures.
Description
technical field [0001] The invention relates to a two-component epoxy zinc-rich primer, which can be used as an anticorrosion primer for steel structures such as pipelines, ships, bridges, and storage tanks. Background technique [0002] Metal corrosion is a very serious problem faced by people. It is roughly estimated that the annual loss of metal structures, equipment and materials due to corrosion is approximately equivalent to 20% to 40% of the metal output of the year, and more than 100 million tons of metals are scrapped due to corrosion every year in the world, and the economic loss accounts for 100% of the national total. 1.5% to 3.5% of the total economic output value. In China, the economic loss caused by metal corrosion is as high as 30 billion yuan per year, accounting for 4% of the gross national product. For a long time, people have used a variety of techniques to protect metals from corrosion. Among them, one of the most effective and commonly used methods ...
Claims
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Application Information
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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D5/12
Inventor 王炜徐志平郑旗于钦萍邢峻程振强刘毅崔梓杰段春华
Owner MCC ENERGY SAVING & ENVIRONMENTAL PROTECTION
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