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Hexagonal boron nitride epoxy anticorrosive wear-resistant paint as well as preparation method and application thereof

A hexagonal boron nitride, anti-corrosion and wear-resistant technology, applied in the field of coatings, can solve the problems of poor coating protection effect, easy agglomeration, and difficulty in uniform dispersion, so as to increase wear resistance, improve barrier performance, and reduce coating cracks Effect

Active Publication Date: 2017-05-31
XINHE NEW MATERIALS CO LTD
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  • Summary
  • 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 force adsorption, and it is difficult to uniformly disperse polymer polymers. In the substance or resin, the micropores still exist, and the protective effect of the formed coating is poor

Method used

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  • Hexagonal boron nitride epoxy anticorrosive wear-resistant paint as well as preparation method and application thereof
  • Hexagonal boron nitride epoxy anticorrosive wear-resistant paint as well as preparation method and application thereof
  • Hexagonal boron nitride epoxy anticorrosive wear-resistant paint as well as preparation method and application thereof

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preparation example Construction

[0056] In some preferred embodiments, the preparation method includes: dispersing hexagonal boron nitride and aniline oligomers in a solvent, and stirring or ultrasonic treatment to obtain a hexagonal boron nitride dispersion, and then dissolving the hexagonal boron nitride The boron nitride dispersion liquid is mixed with epoxy resin and coating additives to obtain the first component.

[0057] Further, in the aforementioned preparation method, general high-speed stirring and mixing and dispersing equipment can be used for stirring and dispersing, such as ultrasonic cleaning machines, ultrasonic cell pulverizers, high-speed mixers, mechanical stirrers, etc.

[0058] Further, the content of hexagonal boron nitride in the coating is preferably 0.5wt%-2wt%.

[0059] Further, the mass ratio of hexagonal boron nitride to aniline oligomers in the coating is preferably 1:10˜10:1.

[0060] In some preferred embodiments, the coating includes:

[0061] The first component includes: 8...

Embodiment 1

[0095] Example 1: Weigh 0.031 g of aniline dimer and 0.13 g of hexagonal boron nitride nanosheets (commercially available, with a thickness of about 0.33 nm to 2 nm) and disperse them in 25 mL of tetrahydrofuran, and sonicate for 1 hour to obtain a hexagonal boron nitride dispersion. Add the hexagonal boron nitride dispersion to 20g epoxy resin, 1g leveling agent (polydimethylsiloxane), 1g anti-settling agent (polyamide wax), 2g defoamer (modified organic silicone Compound) and 6g xylene, using mechanical stirring for 30 minutes, so that the various substances were mixed uniformly to obtain component one. Mix 5g of polyamide 650 and 4g of xylene solution evenly to prepare component 2. Mix component one and component two according to 4:1, use a high-speed mixer, and stir for 30 minutes to obtain a hexagonal boron nitride epoxy composite coating containing 0.5wt% hexagonal boron nitride (that is, hexagonal boron nitride anti-corrosion and wear-resistant coating). The obtained ...

Embodiment 2

[0096]Example 2: Weigh 0.063g of aniline trimer and 0.25g of hexagonal boron nitride nanosheets (commercially available, with a thickness of about 6nm to 10nm) and disperse them in 50mL of tetrahydrofuran, and sonicate for 1 hour to obtain a hexagonal boron nitride dispersion. Add the hexagonal boron nitride dispersion to 20g epoxy resin, 2g leveling agent (polydimethylsiloxane), 2g anti-settling agent (polyamide wax), 2g defoamer (modified organic silicone Compound) and 6g of toluene (model E44, purchased from Jiangsu Wujiang Heli Resin Factory), mechanically stirred for 30 minutes to mix the various substances uniformly to obtain component 1. Mix 5g of polyamide 650 and 4g of toluene solution evenly to prepare component 2. Mix component one and component two according to 4:1, use a high-speed mixer, and stir for 30 minutes to obtain a hexagonal boron nitride epoxy composite coating containing 1.0 wt% hexagonal boron nitride. The obtained hexagonal boron nitride epoxy compos...

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Abstract

The invention discloses hexagonal boron nitride anticorrosive wear-resistant paint as well as a preparation method and application thereof. The preparation method comprises the following steps of the provision of a first component, which comprises the following steps of mixing hexagonal boron nitride with an aniline low polymer in a solvent, so as to obtain hexagonal boron nitride dispersion liquid, and then uniformly mixing the hexagonal boron nitride dispersion liquid with epoxy resin and a paint aid; the provision of a second component, wherein the second component comprises a curing agent or a mixture of the curing agent and the solvent. When the paint is used, the first component and the second component can be mixed firstly, then an obtained mixture is coated on the surface of a matrix, and afterwards, the mixture is cured to form a coating. The hexagonal boron nitride anticorrosive wear-resistant paint provided by the invention has the advantages of being good in storage stability and difficultly sinking to a bottom, and the like; further, the coating formed by the hexagonal boron nitride anticorrosive wear-resistant paint has quite good barrier property, antiseptic property and wear-resisting property; the hexagonal boron nitride anticorrosive wear-resistant paint has wide application prospects in industries of construction, chemical engineering, petroleum, electric power, metallurgy, shipping, light textiles, storage, traffic, spaceflight and the like.

Description

technical field [0001] The invention specifically relates to a hexagonal boron nitride epoxy composite paint, its preparation method and application, and belongs to the technical field of paint. Background technique [0002] The direct loss caused by corrosion to metal materials is huge, which is mainly reflected in two aspects. First of all, economically, it is estimated that 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. Scrapped steel equipment is equivalent to 30% of annual output, causing serious economic losses. Secondly, the great harm of corrosion is not only reflected in economic losses, but also brings heavy casualties, environmental pollution, waste of resources, hinders the development of new technologies, and promotes the loss of natural resources. The serious harm caused by ...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D163/04C09D5/08
CPCC08L2201/08C08L2205/025C08L2205/035C09D5/08C09D5/18C09D163/00C09D163/04C08L83/04C08K9/04C08K7/00C08K2003/385
Inventor 赵海超崔明君陈诚邱诗惠王立平
Owner XINHE NEW MATERIALS CO LTD
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