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A kind of graphene oxide reinforced magnesium-based composite material and preparation method thereof

A composite material and manufacturing method technology, applied in the field of materials, can solve the problems affecting the properties of graphene oxide reinforced magnesium-based composite materials, the relationship between graphene and metal matrix is ​​not clear, the shape and dispersion uniformity are difficult to control, etc., to achieve Promoting sustainable development, reducing the probability of oxidation, and low cost

Active Publication Date: 2018-07-10
HARBIN UNIV OF SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the preparation of this method mainly has the disadvantages that the interface relationship between graphene and the metal matrix is ​​not clear, and the morphology and dispersion uniformity of graphene in the metal matrix are difficult to control, which seriously affects the graphene oxide reinforced magnesium matrix composites. properties, and the method is complicated in process, high in preparation cost, easy to cause environmental pollution, and the degree of bonding between graphene oxide and magnesium chips is also poor.

Method used

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  • A kind of graphene oxide reinforced magnesium-based composite material and preparation method thereof

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Embodiment 1

[0038] The preparation method of the graphene oxide reinforced magnesium-based composite material provided in this embodiment comprises the following steps:

[0039]S1: Mix graphite oxide and water according to the dosage ratio of 0.25g:50mL, and ultrasonically disperse at 20KHz for 20min to obtain a graphene oxide dispersion;

[0040] S2: The graphene oxide dispersion was mixed with CTAB and AZ80 magnesium chips, and then dried at 0.08MPa and 35°C to obtain chip-like composite materials; wherein, the dosage ratio of graphite oxide, CTAB, and AZ80 magnesium chips was 0.25g: 200mL: 89.60g;

[0041] S3: Heating the crumb-like composite material to 250° C. and keeping it warm for 20 minutes, and then pressing it into shape.

[0042] This embodiment also provides a graphene oxide-reinforced magnesium-based composite material prepared by the above-mentioned method for producing a graphene oxide-reinforced magnesium-based composite material.

Embodiment 2

[0044] The preparation method of the graphene oxide reinforced magnesium-based composite material provided in this embodiment comprises the following steps:

[0045] S1: Mix graphite oxide and water according to the dosage ratio of 0.30g:100mL, ultrasonically disperse at 40KHz for 10min to obtain a graphene oxide dispersion, and put the graphene oxide dispersion into a sealed container for later use;

[0046] S2: Ultrasonic cleaning of AZ31 magnesium chips at 40KHz for 10 minutes;

[0047] Add graphene oxide dispersion into water and mix, then ultrasonically disperse at 40KHz for 20min, then add the cleaned AZ31 magnesium chips, mechanically stir for 10min, then ultrasonically disperse at 40KHz for 20min to obtain a mixed solution, and place the mixed solution at 0.098 Dry at MPa and 100°C to obtain chip-like composite materials; wherein, the dosage ratio of graphite oxide, water, and AZ31 magnesium chips is 0.30g: 200mL: 89.80g;

[0048] S3: Heating the crumb-like composite ...

Embodiment 3

[0051] The preparation method of the graphene oxide reinforced magnesium-based composite material provided in this embodiment comprises the following steps:

[0052] S1: Mix graphite oxide and water according to the dosage ratio of 0.27g:75mL, ultrasonically disperse at 30KHz for 15 minutes to obtain a graphene oxide dispersion, and then put the graphene oxide dispersion into a sealed container for later use;

[0053] S2: Ultrasonic cleaning of AZ31 magnesium chips at 30KHz for 15 minutes;

[0054] Add the graphene oxide dispersion obtained in step S1 to 200mL of analytical alcohol with a purity of 99.99%, mix, and then ultrasonically disperse at 30KHz for 30min, then add 89.73g of AZ31 magnesium chips after cleaning, mechanically stir for 5min and then dissolve at 30KHz Under ultrasonic dispersion treatment for 30min, the mixed solution was obtained, and the mixed solution was dried at 0.087MPa and 50°C to obtain 90g of crumb composite material;

[0055] S3: if figure 1 As ...

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Abstract

The invention provides a graphene oxide reinforced magnesium-based composite material and a manufacturing method thereof, which relate to the field of material technology. The method comprises the following steps: ultrasonically dispersing graphite oxide to obtain a graphene oxide dispersion; mixing the graphene oxide dispersion with a solvent and magnesium chips, and then drying at 0.08-0.098MPa and 35-100°C to obtain a chip-like Composite material; wherein, the solvent is selected from one or more of alcohol, water, and cetyltrimethylammonium bromide, and the dosage ratio of graphite oxide, solvent, and magnesium chips is 0.25~0.30g: 200mL: 89.60~ 89.80g; heat the crumb-like composite material to 250-350°C and keep it warm for 10-20min, and then press it into shape. The manufacturing method of the graphene oxide-reinforced magnesium-based composite material provided by the invention has the advantages of simple process, low cost and high recycling rate of magnesium waste.

Description

technical field [0001] The invention relates to the field of material technology, in particular to a graphene oxide reinforced magnesium-based composite material and a manufacturing method thereof. Background technique [0002] With the wide application of magnesium alloys, a large amount of waste will be generated during the machining process of magnesium alloys and after the use of magnesium alloys, and the recycling of magnesium alloy wastes has become a strategic focus of the development of the magnesium industry. Refining and remelting is currently the main method for recycling magnesium alloy waste, but this method is costly, will produce harmful gases, and will also aggravate environmental pollution, and the specific surface area of ​​magnesium alloy scraps and powders is large, which is easy to oxidize and burn. The recovery rate in the refining and remelting process is very low, and there may even be a danger of combustion and explosion, so the method of refining an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C1/05C22C23/00B22F1/00B22F3/20
CPCB22F1/0003C22C1/05C22C23/00B22F3/20B22F2003/208B22F1/10
Inventor 吉泽升杨钊许红雨胡茂良
Owner HARBIN UNIV OF SCI & TECH
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