CN110358344B - Method for producing anticorrosive paint - Google Patents
Method for producing anticorrosive paint Download PDFInfo
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- CN110358344B CN110358344B CN201810321065.4A CN201810321065A CN110358344B CN 110358344 B CN110358344 B CN 110358344B CN 201810321065 A CN201810321065 A CN 201810321065A CN 110358344 B CN110358344 B CN 110358344B
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D179/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen, with or without oxygen, or carbon only, not provided for in groups C09D161/00 - C09D177/00
- C09D179/02—Polyamines
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
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Abstract
The invention discloses a manufacturing method of an anticorrosive paint, which comprises the following steps: mixing 1.5 to 4 parts by weight of an aniline monomer, 0.5 to 2 parts by weight of polyoxyethylene-polyoxypropylene-polyoxyethylene, 0.5 to 20 parts by weight of an acid liquid, and 159 to 197 parts by weight of liquid water to form a first mixed liquid; and adding 0.5 to 15 parts by weight of an initiator to the first mixed liquid at 0 to 30 ℃ to form a plurality of leaf-shaped, dendritic or flower-shaped microstructure templates; mixing 0.005 to 0.015 parts by weight of the microstructured template, 0.5 to 2 parts by weight of the aniline monomer, 1.5 to 12 parts by weight of the acid liquid, and 185.2 to 197.5 parts by weight of the liquid water to form a second mixed liquid; and adding 0.5 to 0.8 part by weight of the initiator to the second mixed liquid to prepare an anticorrosive paint. The anticorrosive paint prepared by the invention has preferable anticorrosive effect and gas barrier property.
Description
Technical Field
The present invention relates to a method for producing a coating, and more particularly to a method for producing an anticorrosive coating.
Background
The anticorrosive paint is applied to the surfaces of various products to prevent the products from being corroded by the external environment and causing damage to the products. For general anticorrosive coatings, epoxy resin is mainly added as an anticorrosive layer. However, the corrosion prevention effect of such a corrosion prevention layer is yet to be enhanced. Epoxy, on the other hand, has no additional effect other than as an etch resist.
Therefore, it is necessary to provide a method for producing an anticorrosive coating to solve the problems of the prior art.
Disclosure of Invention
In view of the above, the present invention provides a method for manufacturing an anticorrosive coating, so as to solve the problems that the anticorrosive effect of the anticorrosive coating in the prior art needs to be enhanced and no other additional effects exist.
An object of the present invention is to provide a method for manufacturing an anticorrosive coating, which uses aniline oligomer without conductivity (or with low conductivity) as a microstructure template with a specific shape, and forms polyaniline with conductivity on the microstructure template made of aniline oligomer, so that polyaniline is formed on the microstructure template made of the same material (both aniline), thereby providing the anticorrosive coating with a preferable anticorrosive effect.
Another object of the present invention is to provide a method for manufacturing an anticorrosive paint, which uses a microstructure template having a specific shape to improve gas barrier properties or anticorrosive effect of the anticorrosive paint.
To achieve the above object, one embodiment of the present invention provides a method for manufacturing an anticorrosive paint, comprising the steps of: providing a plurality of microstructured templates comprising the steps of: mixing 1.5 to 4 parts by weight of an aniline monomer, 0.5 to 2 parts by weight of polyoxyethylene-polyoxypropylene-polyoxyethylene, 0.5 to 20 parts by weight of an acid liquid, and 159 to 197 parts by weight of liquid water to form a first mixed liquid; and adding 0.5 to 15 parts by weight of an initiator to the first mixed liquid at a temperature of 0 to 30 ℃ to form the microstructure template, wherein the microstructure template is in a shape of a leaf, a tree or a flower; mixing 0.005 to 0.015 parts by weight of the microstructured template, 0.5 to 2 parts by weight of the aniline monomer, 1.5 to 12 parts by weight of the acid liquid, and 185.2 to 197.5 parts by weight of the liquid water to form a second mixed liquid; and adding 0.5 to 0.8 part by weight of the initiator to the second mixed liquid to prepare an anticorrosive paint.
In one embodiment of the present invention, the initiator comprises at least one of ammonium persulfate and hydrogen peroxide.
In an embodiment of the invention, the acid solution includes at least one of hydrochloric acid, sulfuric acid and nitric acid.
In an embodiment of the present invention, the step of providing the microstructure template includes the steps of: mixing 1.5 to 4 parts by weight of the aniline monomer, 0.5 to 1 part by weight of the polyoxyethylene-polyoxypropylene-polyoxyethylene, 0.5 to 2 parts by weight of the acid liquid, and 192 to 197 parts by weight of the liquid water to form the first mixed liquid; and adding 0.5 to 1 part by weight of the initiator to the first mixed liquid at 0 to 20 ℃ to form the blade-shaped microstructure template, wherein the initiator is ammonium persulfate.
In an embodiment of the present invention, the step of providing the microstructure template includes the steps of: mixing 1.5 to 2 parts by weight of the aniline monomer, 0.5 to 1 part by weight of the polyoxyethylene-polyoxypropylene-polyoxyethylene, 10 to 20 parts by weight of the acid liquid, and 162 to 185 parts by weight of the liquid water to form the first mixed liquid; and adding 3 to 15 parts by weight of the initiator to the first mixed liquid at 20 to 30 ℃ to form the dendritic microstructure template, wherein the initiator is hydrogen peroxide.
In an embodiment of the present invention, the step of providing the microstructure template includes the steps of: mixing 3.5 to 4 parts by weight of the aniline monomer, 1 to 2 parts by weight of the polyoxyethylene-polyoxypropylene-polyoxyethylene, 0.5 to 3 parts by weight of the acid liquid, and 190 to 194.5 parts by weight of the liquid water to form the first mixed liquid; and adding 0.5 to 1 part by weight of the initiator to the first mixed liquid at 0 ℃ to form the microstructure template in a flower shape, wherein the initiator is ammonium persulfate.
In an embodiment of the invention, after the microstructure template is formed, a separation step is further included to separate the microstructure template.
In an embodiment of the invention, after the forming of the etching-resistant coating, a separation step is further included to separate the etching-resistant coating.
In an embodiment of the invention, the manufacturing method further includes adding an epoxy resin to the anticorrosive coating.
In an embodiment of the present invention, the step of forming the microstructure template further includes: adding the initiator to the first mixed liquid for 20 to 28 hours to form the microstructure template.
Compared with the prior art, the method for manufacturing the anticorrosive paint can enhance the anticorrosive effect and provide additional effect.
In order to make the aforementioned and other objects of the present invention more comprehensible, preferred embodiments accompanied with figures are described in detail below:
drawings
Fig. 1 is a schematic flow chart of a method for manufacturing an anticorrosive paint according to an embodiment of the present invention.
Fig. 2A to 2C: electron micrographs of the various aspects of example 1.
Fig. 2D to 2F: electron micrographs of the various aspects of example 2.
FIG. 2G: electron micrograph of example 3.
Fig. 3A to 3C: electron micrographs of the various aspects of example 4.
FIG. 3D: electron micrograph of example 5.
FIG. 3E: electron micrograph of example 6.
Fig. 4A to 4C: electron micrographs of the various aspects of example 7.
Fig. 5A to 5D: electron micrographs of the various aspects of example 8.
Fig. 5E to 5G: electron micrographs of the various aspects of example 9.
Fig. 5H to 5J: electron micrographs of the various aspects of example 10.
FIG. 6: electron micrograph of example 11.
FIG. 7: electron micrograph of example 12.
Detailed Description
The following description of the embodiments refers to the accompanying drawings for illustrating the specific embodiments in which the invention may be practiced. Furthermore, directional phrases used herein, such as, for example, upper, lower, top, bottom, front, rear, left, right, inner, outer, lateral, peripheral, central, horizontal, lateral, vertical, longitudinal, axial, radial, uppermost or lowermost, etc., refer only to the orientation of the attached drawings. Accordingly, the directional terms used are used for explanation and understanding of the present invention, and are not used for limiting the present invention.
Referring to fig. 1, a method 10 for manufacturing an anticorrosive coating according to an embodiment of the present invention mainly includes the following steps 11 to 13: providing a plurality of microstructured templates comprising the steps of: mixing 1.5 to 4 parts by weight of an aniline monomer, 0.5 to 2 parts by weight of polyoxyethylene-polyoxypropylene-polyoxyethylene, 0.5 to 20 parts by weight of an acid liquid, and 159 to 197 parts by weight of liquid water to form a first mixed liquid; and adding 0.5 to 15 parts by weight of an initiator to the first mixed liquid at 0 to 30 ℃ to form the microstructure template, wherein the microstructure template is in a leaf shape, a tree shape or a flower shape (step 11); mixing 0.005 to 0.015 parts by weight of the microstructured template, 0.5 to 2 parts by weight of the aniline monomer, 1.5 to 12 parts by weight of the acid liquid, and 185.2 to 197.5 parts by weight of the liquid water to form a second mixed liquid (step 12); and adding 0.5 to 0.8 part by weight of the initiator to the second mixed liquid to prepare an anticorrosive paint. The details of the implementation of the above steps of the embodiments and their principles are described in detail below.
The method 10 for manufacturing the anticorrosive paint of the embodiment of the invention firstly comprises the following steps of 11: providing a plurality of microstructured templates comprising the steps of: mixing 1.5 to 4 parts by weight of an aniline monomer, 0.5 to 2 parts by weight of a polyoxyethylene-polyoxypropylene-polyoxyethylene block copolymer, 0.5 to 20 parts by weight of an acid liquid, and 159 to 197 parts by weight of liquid water to form a first mixed liquid; and adding 0.5 to 15 parts by weight of an initiator to the first mixed liquid at 0 to 30 ℃ to form the microstructure template, wherein the microstructure template is leaf-shaped, dendritic or flower-shaped. In this step 11, the microstructure template is mainly composed of a nonconductive (or low conductive) aniline oligomer. The micro-structure templates with different shapes can be manufactured according to different manufacturing parameters. Specifically, the microstructure template of the present invention may comprise a plurality of microstructures (having a size of about 1 to 50 μm) having different shapes, which are not conductive (or have low conductivity) due to the oligomer. Generally, the microstructure template itself has no corrosion protection effect due to poor conductivity.
In one embodiment, the initiator may comprise at least one of Ammonium Persulfate (APS) and hydrogen peroxide (H2O 2). The initiator acts primarily as an oxidant for the aniline monomer to form aniline oligomers. In another embodiment, the acid solution may comprise at least one of hydrochloric acid, sulfuric acid, and nitric acid. In another embodiment, after the microstructure template is formed, a separation step is further included to separate the microstructure template, for example, by a commercially available centrifuge to separate the solid microstructure template. In another embodiment, the step of forming the microstructure template further comprises adding the initiator to the first mixed liquid for 20 to 28 hours to form the microstructure template. In one embodiment, for example, the time period may be 21 hours, 22 hours, 23 hours, 24 hours, 25 hours, 26 hours, or 27 hours.
In one embodiment, the step of providing the microstructure template comprises the steps of: mixing 1.5 to 4 parts by weight of the aniline monomer, 0.5 to 1 part by weight of the polyoxyethylene-polyoxypropylene-polyoxyethylene, 0.5 to 2 parts by weight of the acid liquid, and 192 to 197 parts by weight of the liquid water to form the first mixed liquid; and adding 0.5 to 1 part by weight of the initiator to the first mixed liquid at 0 to 20 ℃ to form the blade-shaped microstructure template, wherein the initiator is ammonium persulfate.
In one embodiment, the step of providing the microstructure template comprises the steps of: mixing 1.5 to 2 parts by weight of the aniline monomer, 0.5 to 1 part by weight of the polyoxyethylene-polyoxypropylene-polyoxyethylene, 10 to 20 parts by weight of the acid liquid, and 162 to 185 parts by weight of the liquid water to form the first mixed liquid; and adding 3 to 15 parts by weight of the initiator to the first mixed liquid at 20 to 30 ℃ to form the dendritic microstructure template, wherein the initiator is hydrogen peroxide.
In one embodiment, the step of providing the microstructure template comprises the steps of: mixing 3.5 to 4 parts by weight of the aniline monomer, 1 to 2 parts by weight of the polyoxyethylene-polyoxypropylene-polyoxyethylene, 0.5 to 3 parts by weight of the acid liquid, and 190 to 194.5 parts by weight of the liquid water to form the first mixed liquid; and adding 0.5 to 1 part by weight of the initiator to the first mixed liquid at 0 ℃ to form the microstructure template in a flower shape, wherein the initiator is ammonium persulfate.
The method 10 for manufacturing the anticorrosive paint of the embodiment of the present invention is followed by step 12: mixing 0.005 to 0.015 parts by weight of the microstructured template, 0.5 to 2 parts by weight of the aniline monomer, 1.5 to 12 parts by weight of the acid liquid, and 185.2 to 197.5 parts by weight of the liquid water to form a second mixed liquid. In this step 12, the microstructure template of step 11 is mainly mixed with other reactants.
The method 10 for manufacturing the anticorrosive paint of the embodiment of the invention is finally the step 13: adding 0.5 to 0.8 parts by weight of the initiator to the second mixed liquid to produce an anticorrosive paint. In step 13, the initiator is added to polymerize aniline monomer into conductive polyaniline, and the conductive polyaniline is formed (or covered) on the microstructure template to form the anticorrosive coating. In one embodiment, an epoxy resin may be added to the anticorrosive coating to enhance the anticorrosive effect. In another embodiment, after forming the microstructure template, a separation step is further included to separate the corrosion-resistant coating, for example, by a commercially available centrifuge.
Several examples and analysis results are presented below to prove that the method for producing the anticorrosive coating according to the examples of the present invention can actually improve the anticorrosive effect and the gas barrier property.
Example 1:
the fabrication method of the leaf-shaped microstructure template can be referred to as follows, and different acid solutions (0.84 ml of 37 wt% hydrochloric acid and 0.61 ml of hydrochloric acid)68 wt% nitric acid or 0.54 ml of 37 wt% sulfuric acid) was mixed with 3.73 g of aniline monomer, 0.8 g of polyoxyethylene-polyoxypropylene-polyoxyethylene (co: (co)
-F127), adding liquid water to 200 ml, and then adding 0.68 g of ammonium persulfate at the temperature of between 0 and 20 ℃ for reaction for about 24 hours to obtain the microstructure template. The microstructure template is taken out and observed by an electron microscope, and photographs such as fig. 2A to 2C can be obtained, in which fig. 2A is using hydrochloric acid, fig. 2B is using nitric acid, and fig. 2C is using sulfuric acid.
Example 2:
another method for manufacturing a leaf-shaped microstructure template can use acid solutions with different concentrations, as described below. Hydrochloric acid (37 wt% hydrochloric acid in various concentrations, 0.5 ml, 1.18 ml or 1.51 ml) was mixed with 3.73 g of aniline monomer, 0.8 g of polyoxyethylene-polyoxypropylene-polyoxyethylene ((R))
-F127), adding liquid water to 200 ml, and then adding 0.68 g of ammonium persulfate at the temperature of between 0 and 20 ℃ for reaction for about 24 hours to obtain the microstructure template. The microstructure template was removed and observed by electron microscopy to obtain photographs as shown in fig. 2D to 2F, wherein fig. 2D used 0.5 ml of 37 wt% hydrochloric acid, fig. 2E used 1.11 ml of 37 wt% hydrochloric acid, and fig. 2F used 1.51 ml of 37 wt% hydrochloric acid.
Example 3:
another method for making a leaf-shaped microstructure template can use aniline in a lower concentration (or lower weight) as described below. 0.84 ml of 37 wt% hydrochloric acid was mixed with 1.86 g of aniline monomer, 0.8 g of polyoxyethylene-polyoxypropylene-polyoxyethylene
-F127), adding liquid water to 200 ml, and then adding 0.68 g of ammonium persulfate at the temperature of between 0 and 20 ℃ for reaction for about 24 hours to obtain the microstructure template. Molding the microstructureThe plate was taken out and observed by an electron microscope, and a photograph as shown in FIG. 2G was obtained.
Example 4:
a method for fabricating a dendritic microstructure template can use different concentrations (different weights) of perhydrogen oxide, as described below. Different weights of perhydrogenated oxygen (4.1 grams, 6.8 grams, or 13.6 grams of 50 wt% perhydrogenated oxygen) were mixed with 1.86 grams of aniline monomer, 0.8 grams of polyoxyethylene-polyoxypropylene-polyoxyethylene (R) (b)
-F127) and 16.8 ml of 37 wt% hydrochloric acid, adding liquid water to 200 ml, and then adding 0.68 g of ammonium persulfate at the temperature of 20-30 ℃ for reaction for about 24 hours to obtain the microstructure template. The microstructure template was removed and observed by electron microscopy to obtain photographs as shown in fig. 3A to 3C, where fig. 3A used 4.1 grams of perhydrogen, fig. 3B used 6.8 grams of perhydrogen, and fig. 3C used 13.6 grams of perhydrogen.
Example 5:
another method for making dendritic microstructure templates can be to use higher concentrations (or higher weights) of polyoxyethylene-polyoxypropylene-polyoxyethylene, as described below. 6.8 grams of 50 wt% perhydrogenated oxygen are mixed with 1.86 grams of aniline monomer, 1.6 grams of polyoxyethylene-polyoxypropylene-polyoxyethylene ((R))
-F127) and 16.8 ml of 37 wt% hydrochloric acid, adding liquid water to 200 ml, and then adding 0.68 g of ammonium persulfate at the temperature of 20-30 ℃ for reaction for about 24 hours to obtain the microstructure template. The microstructure template is taken out and observed by an electron microscope, and a photograph as shown in fig. 3D can be obtained.
Example 6:
the preferred method for making a dendritic microstructure template is as follows. 13.6 g of 50% by weight of perhydrogenated oxygen are mixed with 1.86 g of aniline monomer, 1.6 g of polyoxyethylene-polyoxypropylene-polyoxyethylene (II)
-F127) and 16.8 ml of 37 wt% hydrochloric acid, adding liquid water to 200 ml, and then adding 0.68 g of ammonium persulfate at 20 ℃ for reaction for about 24 hours to obtain the microstructure template. The microstructure template is taken out and observed by an electron microscope, and a photograph as shown in fig. 3E can be obtained.
Example 7:
the method for manufacturing a flower-shaped microstructure template can use acid solutions with different concentrations, please refer to the following. Hydrochloric acid (37 wt% hydrochloric acid in various concentrations, 0.84 ml, 1.68 ml or 2.52 ml) was mixed with 3.73 g of aniline monomer, 1.6 g of polyoxyethylene-polyoxypropylene-polyoxyethylene ((R))
-F127), adding liquid water to 200 ml, and adding 0.68 g of ammonium persulfate at the temperature of 0 ℃ for reaction for about 24 hours to obtain the microstructure template. The microstructure template was removed and observed by electron microscopy to obtain photographs as shown in fig. 4A to 4C, wherein fig. 4A used 0.84 ml of 37 wt% hydrochloric acid, fig. 4B used 1.68 ml of 37 wt% hydrochloric acid, and fig. 4C used 2.52 ml of 37 wt% hydrochloric acid.
Example 8:
different weights (different concentrations) of aniline monomer (0.56 g, 0.93 g, 1.3 g or 1.86 g) were mixed with 5.04 ml of 37 wt% hydrochloric acid and the microstructure template prepared in example 1 using 0.84 ml of 37 wt% hydrochloric acid (using 10.8 mg), and liquid water was added to 200 ml. Thereafter, 0.68 g of ammonium persulfate was added at 0 degrees celsius to form an anticorrosive paint. The anticorrosive coatings were taken out and observed by an electron microscope, and photographs as shown in fig. 5A to 5D were obtained, in which 0.56 g of aniline monomer was used in fig. 5A, 0.93 g of aniline monomer was used in fig. 5B, 1.3 g of aniline monomer was used in fig. 5C, and 1.86 g of aniline monomer was used in fig. 5D.
Example 9:
different weights (different concentrations) of the leaf-like microstructured templates (2.7 mg, 5.4 mg and 21.6 mg) prepared in example 1 using 0.84 ml of 37 wt% hydrochloric acid were mixed with 5.04 ml of 37 wt% hydrochloric acid and 1.3 g of aniline monomer, respectively, and liquid water was added to 200 ml. Thereafter, 0.68 g of ammonium persulfate was added at 0 degrees celsius to form an anticorrosive paint. The resist was removed and observed by electron microscopy to obtain photographs as shown in fig. 5E to 5G, wherein fig. 5E used 2.7 mg of the microstructure template, fig. 5F used 5.4 mg of the microstructure template, and fig. 5G used 21.6 mg of the microstructure template.
Example 10:
different weights (different concentrations) of hydrochloric acid (1.68 ml, 8.4 ml or 11.76 ml of 37 wt% hydrochloric acid) were mixed with 1.3 g of aniline monomer and the microstructure template (10.8 mg used) prepared in example 1 using 0.84 ml of 37 wt% hydrochloric acid, respectively, and liquid water was added to 200 ml. Thereafter, 0.68 g of ammonium persulfate was added at 0 degrees celsius to form an anticorrosive paint. The anticorrosive coatings were taken out and observed by an electron microscope, and photographs as shown in fig. 5H to 5J were obtained, in which fig. 5H used 1.68 ml of 37 wt% hydrochloric acid, fig. 5I used 8.4 ml of 37 wt% hydrochloric acid, and fig. 5J used 11.76 ml of 37 wt% hydrochloric acid.
Example 11:
the dendritic microstructure templates (2.7 mg, 5.4 mg and 21.6 mg) prepared in example 6 were mixed with 5.04 ml of 37 wt% hydrochloric acid and 1.3 g of aniline monomer, and liquid water was added to 200 ml. Thereafter, 0.68 g of ammonium persulfate was added at 0 degrees celsius to form an anticorrosive paint. Ammonium persulfate, 0.68 grams, was added to form an anticorrosive coating. The anticorrosive coating was taken out and observed by an electron microscope, and a photograph as shown in fig. 6 was obtained.
Example 12:
a flower-like microstructure template (10.8 mg) prepared in example 7 using 1.68 ml of 37 wt% hydrochloric acid was mixed with 5.04 ml of 37 wt% hydrochloric acid and 1.3 g of aniline monomer, and liquid water was added to 200 ml. Thereafter, 0.68 g of ammonium persulfate was added at 0 degrees celsius to form an anticorrosive paint. The anticorrosive coating was taken out and observed by an electron microscope, and a photograph as shown in fig. 7 was obtained.
It can be seen from examples 1 to 7 that it is true that leaf-like, dendritic or flower-like microstructures can be produced with different parameters in the manner disclosed by the present invention. From examples 8 to 11, aniline monomers are reacted to form polyaniline and form on the microstructure template. More specifically, for example, referring to fig. 5C, it can be seen that polyaniline 52 is formed on both sides of the blade-shaped microstructure template 51.
The corrosion-resistant coatings prepared in examples 8 to 12 were tested for conductivity and corrosion resistance by further analysis. With respect to the degree of electrical conductivity, the degree of electrical conductivity of the etching resists of examples 8 to 10 (having the leaf-shaped microstructure template) was about 2.75S/cm on average, that of the etching resist of example 11 (having the dendritic microstructure template) was about 3.21S/cm on average, and that of the etching resist of example 12 (having the flower-shaped microstructure template) was about 1.27S/cm on average. For corrosion efficiency, epoxy resin was added to examples 8 to 12, and tests showed that the corrosion rate of the corrosion resistant coatings of examples 8 to 10 (with leaf-like microstructure templates) was 0.105619 mm/year (mm/year), that of the corrosion resistant coating of example 11 (with dendritic microstructure templates) was 0.050046 mm/year, and that of the corrosion resistant coating of example 12 (with flower-like microstructure templates) was 0.115236 mm/year. Examples 8 to 12 do improve the corrosion resistance compared to an epoxy resin without any other additive (corrosion rate about 0.308967 mm/year).
On the other hand, the anticorrosive coatings obtained in examples 8 to 10 were subjected to a gas barrier test. Oxygen with a purity of greater than 99.9999% was used as the test gas and tested at room temperature. First, the gas permeability of a commercial PET film, which was not coated with any coating, was determined to be about 12.415 cubic centimeters per square meter per day (cm)3/m2Day) whereas commercially available PET films coated with 100 and 300 micron thick epoxy were determined to have gas permeability of about 8.534 and 6.573 cubic centimeters per square meter Day, respectively. However, if 1 wt% of the anticorrosive coatings prepared in examples 8 to 10 were added to the above-mentioned epoxy resin with a thickness of 100 μm and 300. mu.m, the gas permeability could be reduced to 7644 cubic centimeters per square meter per day and 4.79 cubic centimeters per square meter per day. As can be seen from the above, the anticorrosive coatings obtained in examples 8 to 10 can indeed increase the gas barrier properties.
The present invention has been described in relation to the above embodiments, which are only exemplary of the implementation of the present invention. It must be noted that the disclosed embodiments do not limit the scope of the invention. Rather, modifications and equivalent arrangements included within the spirit and scope of the claims are included within the scope of the invention.
Claims (6)
1. A method for manufacturing an anticorrosive paint is characterized in that: the manufacturing method of the anticorrosive paint comprises the following steps:
providing a plurality of microstructured templates comprising the steps of:
mixing 1.5 to 2 parts by weight of an aniline monomer, 0.5 to 1 part by weight of polyoxyethylene-polyoxypropylene-polyoxyethylene, 10 to 20 parts by weight of an acid liquid, and 162 to 185 parts by weight of liquid water to form a first mixed liquid; and
adding 3 to 15 parts by weight of an initiator to the first mixed liquid at 20 to 30 ℃ to form the microstructure template, wherein the microstructure template is dendritic and the initiator is hydrogen peroxide;
mixing 0.005 to 0.015 parts by weight of the microstructured template, 0.5 to 2 parts by weight of the aniline monomer, 1.5 to 12 parts by weight of the acid liquid, and 185.2 to 197.5 parts by weight of the liquid water to form a second mixed liquid; and
adding 0.5 to 0.8 parts by weight of the initiator to the second mixed liquid to produce an anticorrosive paint.
2. The method for producing an anticorrosive paint according to claim 1, characterized in that: the acid solution contains at least one of hydrochloric acid, sulfuric acid and nitric acid.
3. The method for producing an anticorrosive paint according to claim 1, characterized in that: after the microstructure template is formed, a separation step is further included to separate the microstructure template.
4. The method for producing an anticorrosive paint according to claim 1, characterized in that: after the forming of the corrosion-resistant coating, a separation step is further included to separate the corrosion-resistant coating.
5. The method for producing an anticorrosive paint according to claim 1, characterized in that: the manufacturing method further comprises adding epoxy resin into the anticorrosion paint.
6. The method for producing an anticorrosive paint according to claim 1, characterized in that: the step of forming the microstructure template further comprises: adding the initiator to the first mixed liquid for 20 to 28 hours to form the microstructure template.
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