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Modified graphene oxide epoxy resin composite coating and preparation method thereof

A technology of ethylene epoxy resin and composite coating, which is applied in the direction of epoxy resin coating, anti-corrosion coating, coating, etc., can solve the problems of insufficient anti-corrosion coating technology and performance, and achieve the effect of compact structure and good anti-corrosion performance

Active Publication Date: 2020-08-18
HOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the deficiencies in the prior art, the object of the present invention is to provide a modified graphene oxide epoxy resin composite coating and a preparation method thereof, so as to solve the problems of anti-corrosion coating technology and insufficient performance in the prior art

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] (1) Add 10 g of sodium bicarbonate (NaHCO 3 ) and 186.6 mg disodium ethylenediaminetetraacetate (EDTA.2Na), stirred evenly to form a dialysate, placed the dialysis bag in the dialysate and boiled for 15 min, then washed the dialysis bag with distilled water several times, and then washed the dialysate Put the bag in 1 mmol / L EDTA.2Na solution (PH=8.0) and boil for 10 min;

[0027] (2) Dissolve an appropriate amount of graphite oxide slurry in distilled water, sonicate for 30 min, then put it into a cooled dialysis bag and magnetically stir it in a beaker filled with distilled water for 3 d. Finally, ultrasonic peeling was carried out for a total of 3 times at 0°C for 30 minutes by an ultrasonic cell disruptor to obtain a graphene oxide dispersion;

[0028] (3) Weigh 10 ml of graphene oxide dispersion and place it in a beaker, add 160 ml of distilled water, put it in an oven to dry for 5 hours, and measure its solid content to be 9 mg / ml;

[0029] (4) Measure 8.9ml of...

Embodiment 2

[0036] (1) Add 10 g of sodium bicarbonate (NaHCO 3 ) and 186.6 mg of ethylenediaminetetraacetic acid disodium (EDTA.2Na), stirred evenly to prepare a dialysate, placed the dialysis bag in the dialysate and boiled for 15 min, then washed the dialysis bag with distilled water several times, and then washed the dialysate Put the bag in 1 mmol / L EDTA.2Na solution (PH=8.0) and boil for 10 min;

[0037] (2) Dissolve an appropriate amount of graphite oxide slurry in distilled water, sonicate for 40 min, then put it into a cooled dialysis bag and stir magnetically for 3 days in a beaker filled with distilled water. Finally, ultrasonic peeling was carried out for 40 minutes under the condition of 5°C by an ultrasonic cell disruptor for a total of 4 times to obtain a dispersion of graphene oxide;

[0038] (3) Weigh 10ml of the graphene oxide dispersion and place it in a beaker, add 160ml of distilled water, put it in an oven and dry it for 5 hours, and measure its solid content to be ...

Embodiment 3

[0046] (1) Add 10 g of sodium bicarbonate (NaHCO 3 ) and 186.6 mg disodium ethylenediaminetetraacetate (EDTA.2Na), stirred evenly to form a dialysate, placed the dialysis bag in the dialysate and boiled for 15 min, then washed the dialysis bag with distilled water several times, and then washed the dialysate Put the bag in 1 mmol / L EDTA.2Na solution (PH=8.0) and boil for 10 min;

[0047] (2) Dissolve an appropriate amount of graphite oxide slurry in distilled water, sonicate for 30 min, then put it into a cooled dialysis bag and magnetically stir it in a beaker filled with distilled water for 4 d. Finally, ultrasonic peeling was carried out for a total of 4 times at 3°C ​​for 40 minutes by an ultrasonic cell disruptor to obtain a graphene oxide dispersion;

[0048] (3) Weigh 10ml of the graphene oxide dispersion and place it in a beaker, add 160ml of distilled water, put it in an oven and dry it for 5 hours, and measure its solid content to be 9mg / ml;

[0049] (4) Measure 8...

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PUM

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Abstract

The invention discloses a modified graphene oxide epoxy resin composite coating and a preparation method thereof, and belongs to the technical field of material coatings. The coating comprises the following components: cerium oxide, an iron salt solution, epoxy resin, and graphene oxide. The preparation method comprises the following steps: firstly, preparing a graphene oxide dispersion liquid from a graphene oxide cake material, then synthesizing a cerium oxide-graphene oxide compound through a hydrothermal reaction, and finally, carrying out a hydrothermal reaction on the granular compound and a salt iron solution, and carrying out high-temperature calcination, thereby obtaining the product. The preparation method has the advantages of accessible raw materials, reasonable process route,no pollution in the preparation process, favorable corrosion resistance of the paint and the like, and is convenient to operate.

Description

technical field [0001] The invention relates to the technical field of material coatings, in particular to a modified graphene oxide epoxy resin composite coating and a preparation method thereof. Background technique [0002] With the advancement of science and technology, the exploitation of land resources is close to saturation, and the marine industry is gradually rising. The ocean accounts for 71% of the earth's area and is rich in resources. However, seawater has the properties of an electrolyte solution, which makes metal materials prone to electrochemical corrosion and reduces the reliability of metal components. Therefore, in the process of development, the harsh corrosive environment has brought huge economic losses and caused problems in various aspects of safety, ecological civilization, and the national economy and people's livelihood. In harsh service environments such as marine climate environments, the corrosion resistance and protection capabilities of epox...

Claims

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Application Information

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IPC IPC(8): C09D163/10C09D5/08
CPCC09D163/10C09D5/08C08K9/00C08K9/02C08K9/04C08K3/042
Inventor 刘小艳刘彦琦李田雨揭汉铎江波刘力余瑾瑶李世杰姜可伟
Owner HOHAI UNIV
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