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Anticorrosive wear-resistant paint for magnesium alloy and preparation method thereof

An anti-corrosion and wear-resistant, magnesium alloy technology, applied in anti-corrosion coatings, epoxy resin coatings, coatings, etc., can solve problems such as defective anti-corrosion and wear resistance, complex coating formulations, equipment damage, etc., to improve safety and Long service life, high self-lubricating effect, effect of reducing friction and wear

Inactive Publication Date: 2012-02-15
NO 59 RES INST OF CHINA ORDNANCE IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The paint formula is complex, and the paint preparation uses hydrofluoric acid, phosphoric acid, etc., which require special containers, which seriously damages the equipment
[0005] It can be seen that the existing coatings for magnesium alloys have defects in corrosion resistance and wear resistance.

Method used

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  • Anticorrosive wear-resistant paint for magnesium alloy and preparation method thereof
  • Anticorrosive wear-resistant paint for magnesium alloy and preparation method thereof
  • Anticorrosive wear-resistant paint for magnesium alloy and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A kind of anticorrosion wear-resisting paint for magnesium alloy, it adopts following preparation method to make:

[0030] Modified epoxy resin liquid: inject 70% bisphenol A type epoxy resin, 20% J587 acrylic resin and 10% ethyl acetate into a stirring container to stir, grind and disperse, and the stirring speed is 600 rpm to 900 rpm / min, stirring and grinding for 1h to 2h to obtain a modified epoxy resin liquid.

[0031] Metal nanopolymer: 44% metal powder by weight percentage, wherein the metal powder is composed of 32% Ti, 45% Al 2 o 3 , 23%MoS 2 Composition, 18% polysiloxane, 12% ethanol, and 12% propyl acetate are added to a ball mill jar, and then liquid nitrogen and zirconium beads of different diameters and sizes are added, wherein the mass ratio of zirconium beads to metal powder is 8 : 1, zirconium beads are 1:3:7 according to the ratio of large, medium and small diameters, the volume of adding liquid nitrogen accounts for about 1 / 3 of the volume of the...

Embodiment 2

[0037] Embodiment 2: a kind of anticorrosion wear-resisting paint for magnesium alloy, it is by 50% modified epoxy resin liquid, 8% metal nano polymer, 12% polyamide resin 315, 4% soybean oil or rapeseed oil, 1% It is made of BYK306 leveling agent, BYK141 defoamer and 25% methyl isobutyl ketone in any proportion.

[0038] The modified epoxy resin liquid is made of 75% bisphenol A epoxy resin, 15% J587 acrylic resin, and 10% acetone; the metal nanopolymer is made of 42% metal powder, 20% polyaluminum ethyl Made of siloxane, 15% ethyl ketone, 23% ethanol, the metal powder is made of 40% Ti, 40% Al 2 o 3 and 20% MoS 2 composition.

[0039] Other content is the same as embodiment 1.

Embodiment 3

[0040] Embodiment 3: a kind of anticorrosion wear-resisting paint for magnesium alloy, it is by 55% modified epoxy resin liquid, 10% metal nano polymer, 6% polyamide resin 605, 2% FA type polysulfide rubber, 1% It is made of BYK354 leveling agent, BYK141 defoamer and 26% ethanol in any proportion.

[0041] The modified epoxy resin liquid is made of 80% bisphenol A epoxy resin, 10% J587 acrylic resin, and 10% acetone; the metal nanopolymer is made of 37% metal powder, 15% polyaluminum ethyl Made of siloxane, 10% ethyl ketone, 38% ethanol, of which the metal powder is 50% Ti, 35% Al 2 o 3 and 15% MoS 2 composition.

[0042] Other content is the same as embodiment 1.

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Abstract

The invention relates to an anticorrosive wear-resistant paint for magnesium alloy. The paint provided by the invention is made from the following components of: a modified epoxy resin liquid which is prepared by dissolving and dispersing bisphenol A-type epoxy resin, J587 acrylic resin and the balance solvent, a metal nanometer polymer formed by Ti, Al2O3, MoS2 and the like, and a curing agent, a plasticizer, an auxiliary agent and a solvent which are commonly used for paints. The preparation method comprises the following steps of: adding the metal nanometer polymer into the modified epoxy resin liquid for dispersion, adding the curing agent, the plasticizer, the auxiliary agent and the solvent with fully stirring and uniformly dispersing, filtering and standing to prepare the anticorrosive wear-resistant paint. The preparation technology and operation are both simple with each step carried out at normal temperature and normal pressure, and are convenient for industrial production. The prepared paint is widely applied, has strong bonding force between the coating layer and the matrix and good anticorrosive and abrasion resistant performance, and has a long-acting effect of protecting magnesium alloy member.

Description

technical field [0001] The invention relates to a coating for magnesium alloys, in particular to a coating with dual functions of corrosion resistance and wear resistance by adding metal nanopolymers to modified epoxy resin, using metal nanopolymers as active fillers and coupling agents Coatings and their preparation methods. Background technique [0002] As the lightest metal structural material, magnesium alloy has a series of advantages such as high specific strength, high specific stiffness, and strong electromagnetic shielding ability. It is widely used in aerospace, weaponry, automobiles, 3C products and other fields. However, magnesium alloys have strong chemical activity and are easy to corrode. Most of the magnesium alloy components must be surface treated before use to enhance their corrosion resistance. Organic coatings are usually used as the surface protection layer, but magnesium alloys as structural parts will inevitably undergo collisions, friction and wear ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D5/10
Inventor 陈强舒大禹赵祖德康凤胡传凯黄树海
Owner NO 59 RES INST OF CHINA ORDNANCE IND
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