Zinc phytate@zeolite imidazate skeleton-8/molybdenum disulfide nanocomposite and preparation method and application thereof

A nano-composite material, molybdenum disulfide technology, applied in anti-corrosion coatings, coatings and other directions, can solve the problem of limited improvement of anti-corrosion performance of coatings

Inactive Publication Date: 2022-02-15
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the shortcomings of the limited improvement of the anti-corrosion performance of the coating by a single inorganic nano-material or corrosion inhibitor in the above-mentioned prior art, and provide a zinc phytate@zeolite imidazolate framework-8 / molybdenum disulfide nanocomposite Materials and their preparation methods and applications

Method used

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  • Zinc phytate@zeolite imidazate skeleton-8/molybdenum disulfide nanocomposite and preparation method and application thereof
  • Zinc phytate@zeolite imidazate skeleton-8/molybdenum disulfide nanocomposite and preparation method and application thereof
  • Zinc phytate@zeolite imidazate skeleton-8/molybdenum disulfide nanocomposite and preparation method and application thereof

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Experimental program
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Effect test

Embodiment 1

[0037] A preparation method of zinc phytic acid@zeolite imidazolate framework-8 / molybdenum disulfide nanocomposite material, comprising the following steps:

[0038] (1) Evenly disperse 0.5 g of molybdenum disulfide in a mixed solution of 50 mL of deionized water and absolute ethanol, and use an ultrasonic cell pulverizer to ultrasonically peel it for 6 h. After the sonication, centrifuge at 1500r / min, and collect the upper suspension. Then, the upper layer suspension was rotary evaporated at 40°C and freeze-dried to obtain few-layer molybdenum disulfide.

[0039] (2) ultrasonically disperse 0.06g of few-layer molybdenum disulfide in 10g of absolute ethanol for 0.5h, add 20g of Tris-buffer solution and then ultrasonically treat for 0.5h, then add 0.02g of dopamine hydrochloride, stir magnetically at room temperature for 12h, and finally, The product was collected by centrifugation, washed three times with ethanol, and dried in vacuum at 50° C. for 6 hours to obtain polydopami...

Embodiment 2

[0046] A preparation method of zinc phytic acid@zeolite imidazolate framework-8 / molybdenum disulfide nanocomposite material, comprising the following steps:

[0047] (1) Evenly disperse 0.8 g of molybdenum disulfide in a mixed solution of 80 mL of deionized water and absolute ethanol, and use an ultrasonic cell pulverizer to ultrasonically peel it for 8 h. After the sonication, centrifuge at 1800r / min, and collect the upper suspension. Then, the upper layer suspension was rotary evaporated at 45°C and freeze-dried to obtain few-layer molybdenum disulfide.

[0048] (2) ultrasonically disperse 0.08g of few-layer molybdenum disulfide in 12g of absolute ethanol for 0.6h, add 25g of Tris-buffer solution and then ultrasonically treat for 0.6h, then add 0.04g of dopamine hydrochloride, stir magnetically at room temperature for 20h, and finally, The product was collected by centrifugation, washed three times with ethanol, and dried in vacuum at 55° C. for 8 hours to obtain polydopami...

Embodiment 3

[0055] A preparation method of zinc phytic acid@zeolite imidazolate framework-8 / molybdenum disulfide nanocomposite material, comprising the following steps:

[0056] (1) Evenly disperse 1.2 g of molybdenum disulfide in a mixed solution of 120 mL of deionized water and absolute ethanol, and use an ultrasonic cell pulverizer to ultrasonically peel it for 10 h. After the sonication, centrifuge at 2000r / min, and collect the upper suspension. Then, the upper layer suspension was rotary evaporated at 50°C and freeze-dried to obtain few-layer molybdenum disulfide.

[0057] (2) ultrasonically disperse 0.10 g of few-layer molybdenum disulfide in 16 g of absolute ethanol for 0.7 h, add 30 g of Tris-buffer solution and then ultrasonically treat it for 0.8 h, then add 0.06 g of dopamine hydrochloride, stir magnetically at room temperature for 24 h, and finally, The product was collected by centrifugation, washed four times with ethanol, and dried in vacuum at 60° C. for 10 h to obtain po...

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Abstract

The invention discloses a zinc phytate@zeolite imidazate skeleton-8/molybdenum disulfide nanocomposite and a preparation method and application thereof, and belongs to the technical field of anti-corrosion coatings. Polydopamine modified molybdenum disulfide is used as a template, and zinc phytate@zeolite imidazate skeleton-8 nanoparticles are grown in situ on the surface of the template. Zinc phytate@zeolite imidazate skeleton-8 is evenly distributed through the lamellar structure of molybdenum disulfide, the smoothness of the composite coating is effectively improved, the corrosion rate of a metal base material is reduced, the zinc phytate@zeolite imidazate skeleton-8 nanoparticles on the surface of molybdenum disulfide can be stimulated by a surrounding corrosive medium to be cracked, and the corrosion inhibitor zinc phytate and 2-methylimidazole are released. A metal anti-corrosion emulsion prepared on the basis is a nano composite material with passive and active protection functions, and the anti-corrosion performance of a polyacrylate coating is synergistically improved.

Description

technical field [0001] The invention belongs to the technical field of anti-corrosion coatings, and relates to a zinc phytate@zeolite imidazolate skeleton-8 / molybdenum disulfide nanocomposite material and its preparation method and application. Background technique [0002] Metal materials are widely used in construction, shipbuilding, aviation, parts and other fields, but in the process of use, metal materials are extremely susceptible to the influence of the surrounding humid environment or microorganisms, and a series of chemical or electrochemical reactions occur, resulting in varying degrees of damage. Corrosion reduces the mechanical properties of metal materials, shortens the service life, and even causes catastrophic accidents, which brings huge harm and economic losses. Therefore, it is imperative to seek a method that can improve the corrosion resistance of metals. [0003] The coating protection method has become the most common and efficient metal anti-corrosion...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23F11/00C23F11/10C09D5/08C09D133/04
CPCC23F11/00C23F11/10C09D5/08C09D133/04C08K2003/3009C08K2201/011C08K9/12C08K3/30C08K5/521C08K7/26
Inventor 鲍艳魏艳敏高璐雷鹏刘超张文博祝茜
Owner SHAANXI UNIV OF SCI & TECH
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