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

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0025] Example 1

[0026] (1) Add 10 g of sodium bicarbonate (NaHCO) to 500 ml of distilled water 3 ) And 186.6 mg of ethylenediaminetetraacetic acid disodium (EDTA.2Na), stir evenly to form a dialysate, put the dialysis bag in the dialysate and boil for 15 minutes, and then wash the dialysis bag with distilled water several times before cleaning the dialysis Place 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 it for 30 minutes, then put it into a cooled dialysis bag and stir magnetically in a beaker containing distilled water for 3 days. Finally, ultrasonic peeling was performed 3 times at 0°C by an ultrasonic cell disruptor for 30min to obtain a dispersion of graphene oxide;

[0028] (3) Weigh 10 ml of graphene oxide dispersion and place it in a beaker and add 160 ml of distilled water and place it in an oven to dry for 5 hours. The measured solid content is 9 m...

Example Embodiment

[0035] Example 2

[0036] (1) Add 10 g of sodium bicarbonate (NaHCO) to 500 ml of distilled water 3 ) And 186.6 mg of ethylenediaminetetraacetic acid disodium (EDTA.2Na), stir evenly to form a dialysate, put the dialysis bag in the dialysate and boil for 15 minutes, and then wash the dialysis bag with distilled water several times before cleaning the dialysis Place 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 it for 40 min, then put it into a cooled dialysis bag and stir it magnetically in a beaker containing distilled water for 3 days. Finally, ultrasonic peeling was carried out 4 times for 40min at 5°C by an ultrasonic cell disruptor to obtain a dispersion of graphene oxide;

[0038] (3) Weigh 10ml of graphene oxide dispersion and place it in a beaker and add 160ml of distilled water and place it in an oven to dry for 5h. The measured solid content is 9mg / ml;

...

Example Embodiment

[0045] Example 3

[0046] (1) Add 10 g of sodium bicarbonate (NaHCO) to 500 ml of distilled water 3 ) And 186.6 mg of ethylenediaminetetraacetic acid disodium (EDTA.2Na), stir evenly to form a dialysate, put the dialysis bag in the dialysate and boil for 15 minutes, and then wash the dialysis bag with distilled water several times before cleaning the dialysis Place 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 it for 30 min, then put it into a cooled dialysis bag and stir it magnetically in a beaker filled with distilled water for 4 days. Finally, ultrasonic peeling was performed 4 times for 40min at 3°C ​​by an ultrasonic cell disruptor to obtain a dispersion of graphene oxide;

[0048] (3) Weigh 10ml of graphene oxide dispersion and place it in a beaker and add 160ml of distilled water and place it in an oven to dry for 5h. The measured solid content is 9mg / ml; ...

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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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