Hexagonal boron nitride epoxy compound anticorrosion coating and preparation method and application thereof

A technology of hexagonal boron nitride and anti-corrosion coatings, applied in the field of coatings, can solve the problems of poor coating protection effect and easy agglomeration, and achieve the effect of not easy to sink, low cost, and long-lasting anti-corrosion performance

Active Publication Date: 2017-05-31
XINHE NEW MATERIALS CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when hexagonal boron nitride is directly added to polymers or resins, hexagonal boron nitride is prone to agglomeration due to π-π conjugation and van der Waals adsorption, and it is difficult to uniformly disperse in polymers or resins. As a result, micropores still exist, and the protective effect of the formed coating is poor

Method used

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  • Hexagonal boron nitride epoxy compound anticorrosion coating and preparation method and application thereof
  • Hexagonal boron nitride epoxy compound anticorrosion coating and preparation method and application thereof
  • Hexagonal boron nitride epoxy compound anticorrosion coating and preparation method and application thereof

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preparation example Construction

[0050] The embodiment of the present invention also provides a preparation method of hexagonal boron nitride epoxy composite anticorrosion coating, comprising:

[0051] Uniformly disperse hexagonal boron nitride and polyaniline nanofibers in a solvent to obtain a hexagonal boron nitride dispersion, and then mix the hexagonal boron nitride dispersion with epoxy resin, additives and solvents to form a component one;

[0052] And, the epoxy resin curing agent is provided as the second component, or the epoxy resin curing agent is diluted with a solvent to form the second component.

[0053] In some more specific embodiments, the preparation method may include the following steps:

[0054] Weighing a certain amount of hexagonal boron nitride and polyaniline nanofibers and dispersing them in a solvent, stirring or ultrasonically obtaining a hexagonal boron nitride dispersion;

[0055] Add the hexagonal boron nitride dispersion into epoxy resin, additives and solvents, and stir for ...

Embodiment 1

[0075] (1) 0.047g polybutylaniline nanofibers (morphology such as figure 1 shown, and can be prepared by referring to the method described above), 0.18g hexagonal boron nitride nanosheets (thickness about 3 ~ 5nm) dispersed in 40mL tetrahydrofuran, ultrasonic 1 hour to mix uniformly to obtain hexagonal boron nitride dispersion, and then The hexagonal boron nitride dispersion is added to 30g epoxy resin (model is E44, purchased from Jiangsu Wujiang Heli Resin Factory), 2g leveling agent, 2g anti-settling agent, 3g defoamer and 8g xylene reagent, Mechanical stirring was used for 30 minutes to mix the various substances uniformly to obtain component 1.

[0076] (2) Mix 7.5g polyamide 650 and 6g xylene solution evenly to prepare component 2.

[0077] (3) Mix component one and component two directly, use a high-speed mixer, and stir for 30 minutes to obtain an epoxy composite coating containing 0.5 wt% hexagonal boron nitride.

[0078] (4) The obtained hexagonal boron nitride epo...

Embodiment 2

[0080] (1) Disperse 0.095g of poly-o-toluene nanofibers (about 10nm in diameter and about 0.8μm in length) and 0.38g of hexagonal boron nitride nanobelts (about 8-10nm in thickness) in 80mL of tetrahydrofuran and sonicate for 1 hour until they are evenly mixed Obtain the hexagonal boron nitride dispersion, then add the hexagonal boron nitride dispersion to 30g epoxy resin (bisphenol S type epoxy resin, methylol bisphenol F type epoxy resin or hydrogenated bisphenol F type ring Oxygen resin, etc.), 2g leveling agent (polydimethylsilane or polymethylphenylsiloxane, etc.), 2g anti-settling agent (polyamide wax or organic swelling, etc.), 3g polyether defoamer and In 8 g of toluene reagent (model E44, purchased from Jiangsu Wujiang Heli Resin Factory), mechanical stirring was used for 30 minutes to mix the various substances uniformly to obtain component 1.

[0081] (2) Mix 7.5g of polyamide 650 and 6g of toluene solution uniformly to prepare component 2.

[0082] (3) Component 1...

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Abstract

The invention discloses a hexagonal boron nitride epoxy compound anticorrosion coating and a preparation method and application thereof. The anticorrosion coating is mainly composed of hexagonal boron nitride, polyaniline nanofiber, epoxy resin, a disperse medium, a coating additive, an epoxy resin curing agent, a solvent, etc. The hexagonal boron nitride epoxy compound anticorrosion coating provided by the invention has good storage stability, is not easy to sink to the bottom, has simple preparation process, is low-cost, and is suitable for large-scale production. A coating layer formed by the coating has excellent barrier property and lasting corrosion resistance. The product has a good application prospect in the industries of chemical engineering, petroleum, electric power, ship, light textile, storage, transportation, spaceflight, etc.

Description

technical field [0001] The invention specifically relates to a hexagonal boron nitride epoxy composite anticorrosion coating, its preparation method and application, and belongs to the technical field of coatings. Background technique [0002] According to statistics, about 100 million tons of metals are corroded and scrapped every year in the world, accounting for 20% to 40% of the annual output; and with the acceleration of industrialization, corrosion problems are becoming more and more serious. Equivalent to 30% of the annual output, causing serious economic losses. Corrosion can also cause serious casualties, environmental pollution, waste of resources and other hazards, which hinders the development of new technologies and increases the loss of natural resources. Therefore, the serious harm caused by metal corrosion to the national economy and social life has become more and more recognized and valued by people. [0003] At present, surface coating technology (such a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D5/08C09D7/12
CPCC08L2205/035C09D5/08C09D7/61C09D7/70C09D163/00C08L79/02C08K2003/385
Inventor 王立平崔明君邱诗惠陈诚赵海超
Owner XINHE NEW MATERIALS CO LTD
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