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A wear-resistant and anti-seepage epoxy protective coating and preparation method thereof

A protective coating, epoxy technology, used in epoxy resin coatings, coatings, anti-corrosion coatings, etc., to increase wear resistance, excellent corrosion resistance, and enhance impermeability.

Active Publication Date: 2017-12-08
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims at the problems existing in the wear resistance and corrosion resistance of epoxy resin protective coatings in the prior art, and proposes a wear-resistant and anti-seepage epoxy protective coating and a preparation method thereof

Method used

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  • A wear-resistant and anti-seepage epoxy protective coating and preparation method thereof
  • A wear-resistant and anti-seepage epoxy protective coating and preparation method thereof
  • A wear-resistant and anti-seepage epoxy protective coating and preparation method thereof

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preparation example Construction

[0031] The preparation method of the wear-resistant and anti-seepage epoxy protective coating of the present invention comprises the following steps:

[0032] (1). Preparation of component A: Weigh 1500 mesh alumina powder and 800 mesh alumina powder, dry in an oven after mixing, add diluent, ethanol, dispersant, silane coupling agent, corrosion inhibitor, and then Then heat in the oven, take it out, add epoxy resin, stir evenly, and get A component, set aside;

[0033] (2). Prepare component B: weigh polyamide curing agent, add diluent and ethanol, stir evenly to obtain component B, set aside;

[0034] (3).Heating the configured components A and B in an oven to remove air bubbles;

[0035] (4). Mix and stir components A and B evenly to obtain an alumina epoxy coating;

[0036] (5). Spraying aluminum oxide epoxy paint on the treated substrate surface;

[0037] (6). The sprayed coating film is dried and cured to obtain a wear-resistant and impermeable epoxy protective coatin...

Embodiment 1

[0044] Preparation of component A: Weigh 20 parts of 1500 mesh alumina powder and 15 parts of 800 mesh alumina powder, mix them and put them in an oven at 90°C for 1 hour, then add 12 parts of benzyl alcohol, 20 parts of ethanol, and 2 parts of titanate Coupling agent, 1 part of silane coupling agent KH-560, 2 parts of benzotriazole and stirred for 15 minutes, heated in an oven at 90°C for 1 hour, immediately added 28 parts of bisphenol A epoxy resin E-44 ( 6101) Stir evenly under the condition of ultrasonic vibration to obtain the coating A component, set aside;

[0045] Preparation of component B: Weigh 52 parts of low-molecular-weight 650 polyamide and add 24 parts of benzyl alcohol and 24 parts of ethanol to obtain component B of the coating, which is set aside;

[0046] Remove air bubbles: Heat the prepared components A and B in an oven at 90°C for 3 hours.

[0047] Preparation of alumina epoxy coating: uniformly mix components A and B to obtain an alumina epoxy coating ...

Embodiment 2

[0051] Preparation of component A: Weigh 20 parts of 1500 mesh alumina powder and 18 parts of 800 mesh alumina powder, mix them and put them in an oven at 90°C for 1 hour, then add 10 parts of benzyl alcohol, 18 parts of ethanol, and 1 part of titanate Coupling agent, 2 parts of silane coupling agent KH-560, 2 parts of benzotriazole and stirred for 15 minutes, heated in an oven at 90°C for 1 hour, immediately added 29 parts of bisphenol A epoxy resin E-44 ( 6101) Stir evenly under the condition of ultrasonic vibration to obtain the coating A component, set aside;

[0052]Preparation of component B: Weigh 57 parts of low-molecular-weight polyamide 650 and add 23 parts of benzyl alcohol and 20 parts of ethanol to obtain component B of the coating, which is set aside;

[0053] Remove air bubbles: Heat the prepared components A and B in an oven at 90°C for 3 hours;

[0054] Preparation of alumina epoxy coating: uniformly mix component A and component B of the coating to obtain an...

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Abstract

The invention discloses an abrasion-resistant anti-permeability epoxy protective coating and a preparation method thereof. The coating is prepared from components A and B, wherein the weight ratio of the component A to the component B is 100: (45-55); the component A comprises the followings in parts by weight: 20-30 parts of epoxy resin, 10-15 parts of a diluent, 10-20 parts of ethyl alcohol, 0.5-2 parts of a silane coupling agent, 1-3 parts of a dispersing agent, 30-40 parts of alumina powder and 1-2 parts of a corrosion inhibitor; the component B comprises the followings in parts by weight: 50-60 parts of a polyamide curing agent, 20-30 parts of a diluent and 20-30 parts of ethyl alcohol. According to the invention, the abrasion resistance of the epoxy coating is improved through the adoption of the high hardness of alumina particles, and the abrasion resistance of the coating can be improved through the adoption of the barrier property of flake-like alumina filler and the passivation property of a passivator.

Description

Technical field: [0001] The invention relates to a wear-resistant and anti-corrosion coating and a preparation method thereof, in particular to a wear-resistant and anti-seepage epoxy protective coating and a preparation method thereof, belonging to the technical field of material preparation. Background technique: [0002] Epoxy resin coating has excellent technological properties, mechanical properties and physical properties, and has good adhesion to most materials. The cured epoxy resin has high bonding strength, heat resistance, chemical resistance, and good dielectric properties. , Low shrinkage and other characteristics. However, due to its own brittleness and other characteristics, it usually needs to be modified. In most usage environments, epoxy resin coatings are generally expected to have both strong corrosion resistance and high wear resistance, among other properties. People often add inorganic high-hardness particles to enhance the wear resistance of epoxy r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D163/00C09D7/12C09D5/08
Inventor 潘儒杰王云鹏张平则魏东博魏祥飞陈小虎
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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