Graphene-enhanced water-based anti-oxidative heat-resistant coating as well as preparation method and use method thereof

A technology of heat-resistant coatings and graphene, applied in polyester coatings, coatings, etc., can solve problems such as insufficient water resistance and corrosion resistance, and achieve the effect of overcoming insufficient water resistance and corrosion resistance

Active Publication Date: 2016-03-30
AVIC BEIJING INST OF AERONAUTICAL MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is: to propose a graphene-enhanced formula of water-based anti-oxidation heat-resistant coating, its preparation method and use method, so as to overcome the problems of insufficient water resistance and corrosion resistance of existing heat-resistant coatings

Method used

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Examples

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preparation example Construction

[0014] The preparation method of the above-mentioned graphene enhanced water-based anti-oxidation heat-resistant coating is characterized in that the steps of preparation are as follows:

[0015] 1. Preparation of graphene dispersion: Weigh graphene oxide and water respectively according to the proportion, and after mixing, disperse ultrasonically for 30min to 60min at a power of 100W to 150W to obtain a graphene dispersion;

[0016] 2. Ingredients: Weigh the film-forming material, graphene dispersion and filler in proportion;

[0017] 3. Grinding: add graphene dispersion liquid and filler to the film-forming material, stir by hand or with a mixer at high speed for at least 1 minute, then put it into a sand mill to grind until the fineness is lower than 40 μm, and then discharge the material to obtain graphene-enhanced water-based anti-oxidation Heat-resistant paint.

[0018] As described above, the graphene enhanced water-based anti-oxidation and heat-resistant coating is ch...

Embodiment 1

[0024] 1. Preparation of graphene dispersion: Weigh 1g of graphene oxide and 1000g of water respectively, mix them and disperse them by ultrasonic wave at 100W power for 30min to obtain graphene dispersion.

[0025] 2. Ingredients: Weigh 500g of modified methyl silicone emulsion, 200g of graphene dispersion, 100g of light calcium carbonate, 100g of precipitated barium sulfate, 30g of cordierite, 30g of mica powder, and 40g of quartz sand;

[0026] 3. Grinding: Add graphene dispersion, light calcium carbonate, precipitated barium sulfate, cordierite, mica powder and quartz sand to the modified methyl silicone emulsion, stir by hand for 5 minutes, and then put it into a sand mill to grind until fine Graphene-enhanced water-based anti-oxidation and heat-resistant coatings are obtained;

[0027] The steps used are as follows:

[0028] 1. Substrate pretreatment: roughen the surface of the steel to be sprayed with sandpaper before spraying, then clean the surface to be sprayed with...

Embodiment 2

[0033] 1. Preparation of graphene dispersion: Weigh 5 g of graphene oxide and 1000 g of water respectively, mix them and disperse them ultrasonically for 60 minutes at a power of 150 W to obtain a graphene dispersion.

[0034] 2. Ingredients: Weigh 400g of modified methyl silicone emulsion, 100g of modified medium-oil alkyd resin emulsion, 300g of graphene dispersion, 40g of light calcium carbonate, 40g of precipitated barium sulfate, 20g of silicon micropowder, and 30g of mica powder , 40g of quartz sand, 30g of alumina;

[0035] 3. Grinding: Mix modified methyl silicone emulsion, modified medium-oil alkyd resin emulsion, graphene dispersion, light calcium carbonate, precipitated barium sulfate, silicon micropowder, mica powder, quartz sand and alumina, and manually Stir for 1 min, then put it into a sand mill and grind until the fineness reaches 40 μm, and then discharge to obtain a graphene-enhanced water-based anti-oxidation and heat-resistant coating;

[0036] The steps ...

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Abstract

The invention belongs to surface treatment technologies, and relates to graphene-enhanced water-based anti-oxidative heat resistant coating which is characterized by being a mixture of a film-forming material, graphene dispersion liquid and a filler, wherein the film-forming material is 50 percent of the mixture by weight; the graphene dispersion liquid is 20 to 40 percent of the mixture by weight; the filler is the balance percent of the mixture. The graphene-enhanced water-based anti-oxidative heat resistant coating is prepared according to the following steps: preparation of the graphene dispersion liquid; mixing; grinding. The invention further provides a formula, a preparation method and a use method of the graphene-enhanced water-based anti-oxidative heat resistant coating; the graphene-enhanced water-based anti-oxidative heat resistant coating can solve the problems of poor water resistance and corrosion resistance of the conventional heat resistant coating.

Description

technical field [0001] The invention belongs to surface treatment technology, and relates to a graphene-enhanced water-based anti-oxidation and heat-resistant coating. Background technique [0002] Oxidation failure of metals at high temperatures is a serious challenge in the industrial field. Applying a protective coating to the surface of the base metal is a relatively economical and effective means of protection, which can greatly reduce the damage of oxygen and high temperature to the base. Due to the high service temperature, most of the commonly used heat-resistant coatings use silicate water glass as a binder, and add a system stabilizer to form a film to protect the coating surface against oxidation, but the pores of the silicate system The rate is high, and there is an Achilles' heel of poor water resistance, which cannot be applied to humid environments and highly corrosive environments. Research on silicone resin emulsion and alkyd resin emulsion, which are also ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D183/04C09D167/08C09D7/12
Inventor 李静关振威艾秋实王唯
Owner AVIC BEIJING INST OF AERONAUTICAL MATERIALS
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