CN113527972A - High-glossiness anti-oxidation coating and preparation method thereof - Google Patents
High-glossiness anti-oxidation coating and preparation method thereof Download PDFInfo
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Abstract
The invention discloses an anti-oxidation coating with high glossiness and a preparation method thereof, and particularly relates to the technical field of waterproof coatings, which comprises the following steps: polyacrylic acid emulsion, a dispersing agent, a defoaming agent, butyl acetate, a silane coupling agent and a composite filler. The invention can effectively improve the high glossiness and the high oxidation resistance of the oxidation resistant coating, and has the advantages of high acid and alkali resistance, good high temperature resistance and good waterproof performance; the silane coupling agent and the silicon dioxide are blended, barium sulfate and titanium dioxide are compounded, the nano silicon dioxide is used as a pore-forming medium by a gas phase method, polyacrylic acid emulsion is used as a film-forming substance, the high gloss performance of the coating can be effectively ensured, dicyandiamide reacts to prepare nano carbon nitride, the micropores of the hollow microspheres are filled by the nano carbon nitride, and the hardness, the high temperature resistance, the acid and alkali resistance, the light weight performance, the oxidation resistance and the high gloss performance of the coating can be effectively ensured by taking the hollow microspheres as a supporting carrier.
Description
Technical Field
The invention relates to the technical field of waterproof coatings, in particular to an antioxidant coating with high glossiness and a preparation method thereof.
Background
The coating is a liquid or solid material which is coated on the surface of an object and can form a film under certain conditions to play a role in protection, decoration or other special functions (insulation, rust prevention, mildew prevention, heat resistance and the like). The wall surface coating is coated outside a building wall surface to play a role in decoration and protection, so that the building wall surface is attractive and neat, and meanwhile, the wall surface is protected, and the service life of the wall surface is prolonged. The wall surface coating is classified according to the building wall surface and comprises an inner wall coating and an outer wall coating. The inner wall paint mainly focuses on decoration and environmental protection; the exterior wall coating mainly focuses on protection and durability.
The existing exterior wall coating has poor glossiness and low oxidation resistance, and is easy to damage and peel off after being blown by wind and rain for a long time.
Disclosure of Invention
In order to overcome the above defects of the prior art, embodiments of the present invention provide a high-gloss, oxidation-resistant coating and a preparation method thereof.
A high-glossiness anti-oxidation coating comprises the following components in percentage by weight: 48.60-51.20% of polyacrylic acid emulsion, 0.56-0.78% of dispersing agent, 0.24-0.28% of defoaming agent, 11.20-11.80% of butyl acetate, 5.60-6.80% of silane coupling agent and the balance of composite filler.
Further, the composite filler comprises the following components in percentage by weight: 17.80-18.40% of barium sulfate, 18.50-19.30% of titanium dioxide, 19.50-20.30% of fumed nano-silica, 18.40-19.20% of dicyandiamide, and the balance of hollow microspheres.
Further, the paint comprises the following components in percentage by weight: 48.60% of polyacrylic acid emulsion, 0.56% of dispersing agent, 0.24% of defoaming agent, 11.20% of butyl acetate, 5.60% of silane coupling agent and 32.80% of composite filler; the composite filler comprises the following components in percentage by weight: 17.80 percent of barium sulfate, 18.50 percent of titanium dioxide, 19.50 percent of gas phase method nano-silica, 18.40 percent of dicyandiamide and 25.80 percent of hollow micro-beads.
Further, the paint comprises the following components in percentage by weight: 51.20 percent of polyacrylic acid emulsion, 0.78 percent of dispersant, 0.28 percent of defoaming agent, 11.80 percent of butyl acetate, 6.80 percent of silane coupling agent and 29.14 percent of composite filler; the composite filler comprises the following components in percentage by weight: 18.40 percent of barium sulfate, 19.30 percent of titanium dioxide, 20.30 percent of gas phase method nano-silica, 19.20 percent of dicyandiamide and 22.80 percent of hollow micro-beads.
Further, the paint comprises the following components in percentage by weight: 49.90% of polyacrylic acid emulsion, 0.67% of dispersing agent, 0.26% of defoaming agent, 11.50% of butyl acetate, 7.20% of silane coupling agent and 30.47% of composite filler; the composite filler comprises the following components in percentage by weight: 18.10 percent of barium sulfate, 18.90 percent of titanium dioxide, 19.90 percent of gas phase method nano-silica, 18.80 percent of dicyandiamide and 24.30 percent of hollow micro-beads.
Further, the defoaming agent is an organic silicon defoaming agent; the dispersing agent is sodium dodecyl sulfate.
The invention also provides a preparation method of the high-glossiness anti-oxidation coating, which comprises the following specific preparation steps:
the method comprises the following steps: weighing the polyacrylic acid emulsion, the dispersing agent, the defoaming agent, butyl acetate, the silane coupling agent and the composite filler in parts by weight;
step two: adding the composite filler into a planetary ball mill for treatment for 50-60 minutes to obtain a mixture A;
step three: sending the mixture A prepared in the step two into a tubular furnace, introducing nitrogen, heating to 720-760 ℃, then preserving heat for 2-4 hours, introducing a sodium hydroxide solution into the tubular furnace in the heat preservation process, and cooling after heat preservation to obtain a mixture B;
step four: adding the dispersing agent, the silane coupling agent and the mixture B prepared in the step one into deionized water, and then carrying out ultrasonic treatment for 30-50 minutes to obtain a mixture C;
step five: and (3) mixing the mixture C obtained in the fourth step with the polyacrylic acid emulsion, the defoaming agent and butyl acetate obtained in the first step, performing ultrasonic treatment for 50-60 minutes, and drying to obtain the high-glossiness antioxidant coating.
Further, in the second step, the revolution speed of the planetary ball mill is 240-300 r/min, and the rotation speed is 480-600 r/min; in the third step, heating is carried out at the speed of 4-8 ℃/min, the concentration of the sodium hydroxide solution is 2-6 mol/L, and the introduction rate of the sodium hydroxide solution is 1-3L/h; after the heat preservation is carried out for 30 minutes, introducing a sodium hydroxide solution for 40-50 minutes; in the fourth step, the weight portion ratio of the mixture B to the deionized water is 1: 30, the ultrasonic treatment frequency is 20-26 KHz, and the ultrasonic power is 800-1400W; in the fifth step, the ultrasonic treatment frequency is 24-30 KHz, and the ultrasonic power is 600-1200W.
Further, in the second step, the revolution speed of the planetary ball mill is 240r/min, and the rotation speed is 480 r/min; in the third step, the temperature is raised at the speed of 4 ℃/min, the concentration of the sodium hydroxide solution is 2mol/L, and the introduction rate of the sodium hydroxide solution is 1L/h; after the heat preservation is carried out for 30 minutes, introducing a sodium hydroxide solution for 40 minutes; in the fourth step, the weight portion ratio of the mixture B and the deionized water is 1: 30, the ultrasonic treatment frequency is 20KHz, and the ultrasonic power is 800W; in the fifth step, the ultrasonic treatment frequency is 24KHz, and the ultrasonic power is 600W.
Further, in the second step, the revolution speed of the planetary ball mill is 270r/min, and the rotation speed is 540 r/min; in the third step, the temperature is raised at the speed of 6 ℃/min, the concentration of the sodium hydroxide solution is 4mol/L, and the introduction rate of the sodium hydroxide solution is 2L/h; after the heat preservation is carried out for 30 minutes, introducing a sodium hydroxide solution for 45 minutes; in the fourth step, the weight portion ratio of the mixture B and the deionized water is 1: 30, the ultrasonic treatment frequency is 23KHz, and the ultrasonic power is 1100W; in the fifth step, the ultrasonic treatment frequency is 27KHz, and the ultrasonic power is 900W.
The invention has the technical effects and advantages that:
1. the anti-oxidation coating with high glossiness prepared by the raw material formula can effectively improve the glossiness and the anti-oxidation performance of the anti-oxidation coating, and is high in acid and alkali resistance, good in high temperature resistance and good in waterproof performance; the dispersing agent can effectively enhance the dispersing performance of the composite filler in the coating, and the composite filler has better combination effect with other raw materials; the silane coupling agent and the silicon dioxide are subjected to blending treatment, so that the surface modification and dispersion of the gas-phase nano silicon dioxide can be effectively realized, and the glossiness and the water resistance of the coating are further effectively enhanced; the glossiness and stability of the coating can be effectively improved by compounding the barium sulfate and the titanium dioxide; the nano silicon dioxide is used as a pore-forming medium by a gas phase method, the polyacrylic acid emulsion is used as a film forming matter, the high gloss performance of the coating can be effectively ensured, dicyandiamide is heated at high temperature, nitrogen and sodium hydroxide solution are introduced for reaction to prepare nano carbon nitride, meanwhile, the nano carbon nitride fills up micropores of the hollow microspheres, and the hollow microspheres are used as a supporting carrier, so that the hardness, the high temperature resistance, the acid and alkali resistance, the light weight performance, the oxidation resistance and the high gloss performance of the coating can be effectively ensured;
2. in the process of preparing the high-glossiness anti-oxidation coating, the planetary ball milling treatment is carried out on the composite filler in the second step, so that the crushing particle size of the composite filler can be effectively enhanced, and the glossiness of the coating is further improved; in the third step, the mixture A is subjected to nitrogen introduction, temperature rise, heat preservation, sodium hydroxide solution introduction and cooling, so that the nano carbon nitride can be effectively prepared, meanwhile, the pore diameter of the hollow microspheres is filled with the gas-phase nano silicon dioxide and the nano carbon nitride, and the hollow microspheres are uniformly distributed in the coating at the later stage, so that the uniformity and the stability of the coating can be effectively ensured; in the fourth step, the dispersing agent, the silane coupling agent and the mixture B are added into deionized water for 23KHz ultrasonic treatment, and the ultrasonic action generates a cavitation effect, so that the reaction rate of the raw materials can be effectively promoted, a large amount of heat energy is provided for the reaction, and the reaction combination effect of the dispersing agent, the silane coupling agent and the mixture B is improved; and step five, mixing the mixture C with polyacrylic acid emulsion, a defoaming agent and butyl acetate for 24KHz ultrasonic treatment, and by the same way, effectively improving the reaction combination effect of the raw materials by virtue of the cavitation effect generated by ultrasonic treatment, and drying to obtain the high-glossiness antioxidant coating.
Detailed Description
The following will clearly and completely describe the technical solutions in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
the invention provides an antioxidant coating with high glossiness, which comprises the following components in percentage by weight: 48.60% of polyacrylic acid emulsion, 0.56% of dispersing agent, 0.24% of defoaming agent, 11.20% of butyl acetate, 5.60% of silane coupling agent and 32.80% of composite filler; the composite filler comprises the following components in percentage by weight: 17.80 percent of barium sulfate, 18.50 percent of titanium dioxide, 19.50 percent of gas phase method nano-silica, 18.40 percent of dicyandiamide and 25.80 percent of hollow micro-beads;
the defoaming agent is an organic silicon defoaming agent; the dispersing agent is sodium dodecyl sulfate;
the invention also provides a preparation method of the high-glossiness anti-oxidation coating, which comprises the following specific preparation steps:
the method comprises the following steps: weighing the polyacrylic acid emulsion, the dispersing agent, the defoaming agent, butyl acetate, the silane coupling agent and the composite filler in parts by weight;
step two: adding the composite filler into a planetary ball mill for treatment for 50 minutes to obtain a mixture A;
step three: sending the mixture A prepared in the step two into a tubular furnace, introducing nitrogen, heating to 720 ℃, then preserving heat for 2 hours, introducing a sodium hydroxide solution into the tubular furnace in the heat preservation process, and cooling after the heat preservation is finished to obtain a mixture B;
step four: adding the dispersing agent, the silane coupling agent and the mixture B prepared in the step one into deionized water, and then carrying out ultrasonic treatment for 30 minutes to obtain a mixture C;
step five: and (3) mixing the mixture C obtained in the fourth step with the polyacrylic acid emulsion, the defoaming agent and the butyl acetate obtained in the first step, performing ultrasonic treatment for 50 minutes, and drying to obtain the high-glossiness antioxidant coating.
In the second step, the revolution speed of the planetary ball mill is 240r/min, and the rotation speed is 480 r/min; in the third step, the temperature is raised at the speed of 4 ℃/min, the concentration of the sodium hydroxide solution is 2mol/L, and the introduction rate of the sodium hydroxide solution is 1L/h; after the heat preservation is carried out for 30 minutes, introducing a sodium hydroxide solution for 40 minutes; in the fourth step, the weight portion ratio of the mixture B and the deionized water is 1: 30, the ultrasonic treatment frequency is 20KHz, and the ultrasonic power is 800W; in the fifth step, the ultrasonic treatment frequency is 24KHz, and the ultrasonic power is 600W.
Example 2:
different from the embodiment 1, the material comprises the following components in percentage by weight: 51.20 percent of polyacrylic acid emulsion, 0.78 percent of dispersant, 0.28 percent of defoaming agent, 11.80 percent of butyl acetate, 6.80 percent of silane coupling agent and 29.14 percent of composite filler; the composite filler comprises the following components in percentage by weight: 18.40 percent of barium sulfate, 19.30 percent of titanium dioxide, 20.30 percent of gas phase method nano-silica, 19.20 percent of dicyandiamide and 22.80 percent of hollow micro-beads.
Example 3:
different from the examples 1-2, the material comprises the following components in percentage by weight: 49.90% of polyacrylic acid emulsion, 0.67% of dispersing agent, 0.26% of defoaming agent, 11.50% of butyl acetate, 7.20% of silane coupling agent and 30.47% of composite filler; the composite filler comprises the following components in percentage by weight: 18.10 percent of barium sulfate, 18.90 percent of titanium dioxide, 19.90 percent of gas phase method nano-silica, 18.80 percent of dicyandiamide and 24.30 percent of hollow micro-beads.
The high glossiness, high glossiness of the antioxidant coating and the first control group, the antioxidant coating, the high glossiness of the second control group, the antioxidant coating, the high glossiness of the third control group, the antioxidant coating, the high glossiness of the fourth control group, the high glossiness of the antioxidant coating and the high glossiness of the fifth control group, the antioxidant coating, the high glossiness of the first control group, the barium sulfate, the high glossiness of the second control group, the titanium white powder, the high glossiness of the third control group, the gas-phase-method-free nano silicon dioxide, the dicyandiamide, the high glossiness of the fourth control group, the hollow-free antioxidant coating, the eight-component testing respectively tests the high glossiness, the hollow-free antioxidant coating, the high glossiness and the high glossiness of the second control group, the high glossiness of the fourth control group, the high glossiness of the antioxidant coating, the high glossiness of the fifth control group, the titanium white powder, the high glossiness and the antioxidant coating, the eight-component testing respectively, The preparation method comprises the following steps of (1) uniformly mixing 30 samples of an anti-oxidation coating and five control groups of high-glossiness anti-oxidation coatings with a mass ratio of 3: 1, coating the mixture on a cement building base material with a thickness of 3mm, and completely drying the mixture for testing; the test results are shown in table one:
table one:
as can be seen from Table I, when the gloss is high, the raw material ratio of the antioxidant coating is as follows: comprises the following components in percentage by weight: 49.90% of polyacrylic acid emulsion, 0.67% of dispersing agent, 0.26% of defoaming agent, 11.50% of butyl acetate, 7.20% of silane coupling agent and 30.47% of composite filler; the composite filler comprises the following components in percentage by weight: 18.10 percent of barium sulfate, 18.90 percent of titanium dioxide, 19.90 percent of gas phase method nano-silica, 18.80 percent of dicyandiamide and 24.30 percent of hollow micro-beads, the high glossiness and the high oxidation resistance of the oxidation resistant coating can be effectively improved, and the oxidation resistant coating has high acid and alkali resistance, good high temperature resistance and good water resistance; example 3 is a preferred embodiment of the present invention, the polyacrylic emulsion in the formulation is used as the main component of the waterproof coating, which can effectively ensure the waterproof performance of the coating; the dispersing agent can effectively enhance the dispersing performance of the composite filler in the coating, and the composite filler has better combination effect with other raw materials; the defoaming agent is used for defoaming treatment in the using process of the coating, so that the stability and the flatness of the coating are ensured; butyl acetate is used as a diluent, and can effectively dilute polyacrylic emulsion, so that the polyacrylic emulsion is easier to blend and combine with the composite filler; the silane coupling agent and the silicon dioxide are subjected to blending treatment, so that the surface modification and dispersion of the gas-phase nano silicon dioxide can be effectively realized, and the glossiness and the water resistance of the coating are further effectively enhanced; the glossiness and stability of the coating can be effectively improved by compounding the barium sulfate and the titanium dioxide; the nano silicon dioxide is used as a pore-forming medium by a gas phase method, the polyacrylic acid emulsion is used as a film forming matter, the high gloss performance of the coating can be effectively ensured, dicyandiamide is heated at high temperature, nitrogen and sodium hydroxide solution are introduced for reaction to prepare nano carbon nitride, meanwhile, the nano carbon nitride fills micropores of the hollow microspheres, and the hollow microspheres are used as a supporting carrier, so that the hardness, the high temperature resistance, the acid and alkali resistance, the light weight performance, the oxidation resistance and the high gloss performance of the coating can be effectively ensured.
Example 4:
the invention provides an antioxidant coating with high glossiness, which comprises the following components in percentage by weight: 49.90% of polyacrylic acid emulsion, 0.67% of dispersing agent, 0.26% of defoaming agent, 11.50% of butyl acetate, 7.20% of silane coupling agent and 30.47% of composite filler; the composite filler comprises the following components in percentage by weight: 18.10 percent of barium sulfate, 18.90 percent of titanium dioxide, 19.90 percent of gas phase method nano-silica, 18.80 percent of dicyandiamide and 24.30 percent of hollow micro-beads;
the defoaming agent is an organic silicon defoaming agent; the dispersing agent is sodium dodecyl sulfate;
the invention also provides a preparation method of the high-glossiness anti-oxidation coating, which comprises the following specific preparation steps:
the method comprises the following steps: weighing the polyacrylic acid emulsion, the dispersing agent, the defoaming agent, butyl acetate, the silane coupling agent and the composite filler in parts by weight;
step two: adding the composite filler into a planetary ball mill for treatment for 55 minutes to obtain a mixture A;
step three: sending the mixture A prepared in the step two into a tubular furnace, introducing nitrogen, heating to 740 ℃, then preserving heat for 3 hours, introducing a sodium hydroxide solution into the tubular furnace in the heat preservation process, and cooling after the heat preservation is finished to obtain a mixture B;
step four: adding the dispersing agent, the silane coupling agent and the mixture B prepared in the step one into deionized water, and then carrying out ultrasonic treatment for 40 minutes to obtain a mixture C;
step five: and (3) mixing the mixture C obtained in the fourth step with the polyacrylic acid emulsion, the defoaming agent and butyl acetate obtained in the first step, performing ultrasonic treatment for 55 minutes, and drying to obtain the high-glossiness antioxidant coating.
In the second step, the revolution speed of the planetary ball mill is 240r/min, and the rotation speed is 480 r/min; in the third step, the temperature is raised at the speed of 4 ℃/min, the concentration of the sodium hydroxide solution is 2mol/L, and the introduction rate of the sodium hydroxide solution is 1L/h; after the heat preservation is carried out for 30 minutes, introducing a sodium hydroxide solution for 40 minutes; in the fourth step, the weight portion ratio of the mixture B and the deionized water is 1: 30, the ultrasonic treatment frequency is 20KHz, and the ultrasonic power is 800W; in the fifth step, the ultrasonic treatment frequency is 24KHz, and the ultrasonic power is 600W.
Example 5:
different from the embodiment 4, in the second step, the revolution speed of the planetary ball mill is 300r/min, and the rotation speed is 600 r/min; in the third step, the temperature is raised at the speed of 8 ℃/min, the concentration of the sodium hydroxide solution is 6mol/L, and the introduction rate of the sodium hydroxide solution is 3L/h; after the heat preservation is carried out for 30 minutes, introducing a sodium hydroxide solution for 50 minutes; in the fourth step, the weight portion ratio of the mixture B and the deionized water is 1: 30, the ultrasonic treatment frequency is 26KHz, and the ultrasonic power is 1400W; in the fifth step, the ultrasonic treatment frequency is 30KHz, and the ultrasonic power is 1200W.
Example 6:
different from the embodiments 4-5, in the second step, the revolution speed of the planetary ball mill is 270r/min, and the rotation speed is 540 r/min; in the third step, the temperature is raised at the speed of 6 ℃/min, the concentration of the sodium hydroxide solution is 4mol/L, and the introduction rate of the sodium hydroxide solution is 2L/h; after the heat preservation is carried out for 30 minutes, introducing a sodium hydroxide solution for 45 minutes; in the fourth step, the weight portion ratio of the mixture B and the deionized water is 1: 30, the ultrasonic treatment frequency is 23KHz, and the ultrasonic power is 1100W; in the fifth step, the ultrasonic treatment frequency is 27KHz, and the ultrasonic power is 900W.
The high glossiness, the high glossiness of the anti-oxidation coating and the six contrast groups, the anti-oxidation coating, the seven contrast groups, the anti-oxidation coating, the eight contrast groups, the anti-oxidation coating and the nine contrast groups, which are prepared in the above examples 4-6, are respectively selected, the high glossiness of the six contrast groups, the anti-oxidation coating and the eight contrast groups are respectively selected, the high glossiness of the six contrast groups, the anti-oxidation coating and the nine contrast groups are not operated in the second step compared with the examples, the seven contrast groups, the high glossiness of the seven contrast groups and the anti-oxidation coating are not operated in the third step compared with the examples, the eight contrast groups, the anti-oxidation coating and the nine contrast groups are not operated in the fourth step compared with the examples, the nine contrast groups, the anti-oxidation coating and the four contrast groups are respectively tested, the high glossiness, the anti-oxidation coating and the four contrast groups are respectively tested, Every 30 samples of the antioxidant coating are taken as a group, the antioxidant coating with high glossiness and water are uniformly mixed according to the mass ratio of 3: 1, the mixture is coated on a cement building base material, the thickness is 3mm, and the test is carried out after the mixture is completely dried, wherein the test results are shown in the table two:
table two:
as can be seen from table two, example 6 is a preferred embodiment of the present invention; in the second step, the planetary ball milling treatment is carried out on the composite filler, so that the crushing particle size of the composite filler can be effectively enhanced, the particle size of the filler is smaller, and the glossiness of the coating is further improved; in the third step, the mixture A is subjected to nitrogen introduction, temperature rise, heat preservation, sodium hydroxide solution introduction and cooling, so that the nano carbon nitride can be effectively prepared, the heat resistance and the acid and alkali resistance of the coating can be effectively enhanced, meanwhile, the pore diameter of the hollow microspheres is filled by the gas phase method nano silicon dioxide and the nano carbon nitride, and the hollow microspheres are uniformly distributed in the coating at the later stage, so that the uniformity and the stability of the coating can be effectively ensured; in the fourth step, the dispersing agent, the silane coupling agent and the mixture B are added into deionized water, and then 23KHz ultrasonic treatment is carried out, so that cavitation effect is generated under the ultrasonic action, the reaction rate of the raw materials can be effectively promoted, a large amount of heat energy is provided for the reaction, and the reaction combination effect of the dispersing agent, the silane coupling agent and the mixture B is improved; in the fifth step, the mixture C, the polyacrylic acid emulsion, the defoaming agent and the butyl acetate are mixed, then 24KHz ultrasonic treatment is carried out, similarly, the cavitation effect generated by the ultrasonic treatment can effectively improve the reaction combination effect of the raw materials, and the high-glossiness antioxidant coating is obtained after drying treatment.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The high-glossiness anti-oxidation coating is characterized by comprising the following components in parts by weight: comprises the following components in percentage by weight: 48.60-51.20% of polyacrylic acid emulsion, 0.56-0.78% of dispersing agent, 0.24-0.28% of defoaming agent, 11.20-11.80% of butyl acetate, 5.60-6.80% of silane coupling agent and the balance of composite filler.
2. The high gloss, oxidation resistant coating of claim 1, wherein: the composite filler comprises the following components in percentage by weight: 17.80-18.40% of barium sulfate, 18.50-19.30% of titanium dioxide, 19.50-20.30% of fumed nano-silica, 18.40-19.20% of dicyandiamide, and the balance of hollow microspheres.
3. The high gloss, oxidation resistant coating of claim 2, wherein: comprises the following components in percentage by weight: 48.60% of polyacrylic acid emulsion, 0.56% of dispersing agent, 0.24% of defoaming agent, 11.20% of butyl acetate, 5.60% of silane coupling agent and 32.80% of composite filler; the composite filler comprises the following components in percentage by weight: 17.80 percent of barium sulfate, 18.50 percent of titanium dioxide, 19.50 percent of gas phase method nano-silica, 18.40 percent of dicyandiamide and 25.80 percent of hollow micro-beads.
4. The high gloss, oxidation resistant coating of claim 2, wherein: comprises the following components in percentage by weight: 51.20 percent of polyacrylic acid emulsion, 0.78 percent of dispersant, 0.28 percent of defoaming agent, 11.80 percent of butyl acetate, 6.80 percent of silane coupling agent and 29.14 percent of composite filler; the composite filler comprises the following components in percentage by weight: 18.40 percent of barium sulfate, 19.30 percent of titanium dioxide, 20.30 percent of gas phase method nano-silica, 19.20 percent of dicyandiamide and 22.80 percent of hollow micro-beads.
5. The high gloss, oxidation resistant coating of claim 2, wherein: comprises the following components in percentage by weight: 49.90% of polyacrylic acid emulsion, 0.67% of dispersing agent, 0.26% of defoaming agent, 11.50% of butyl acetate, 7.20% of silane coupling agent and 30.47% of composite filler; the composite filler comprises the following components in percentage by weight: 18.10 percent of barium sulfate, 18.90 percent of titanium dioxide, 19.90 percent of gas phase method nano-silica, 18.80 percent of dicyandiamide and 24.30 percent of hollow micro-beads.
6. The high gloss, oxidation resistant coating of claim 1, wherein: the defoaming agent is an organic silicon defoaming agent; the dispersing agent is sodium dodecyl sulfate.
7. The method for preparing a high-gloss antioxidant coating according to any one of claims 1 to 6, wherein: the preparation method comprises the following specific steps:
the method comprises the following steps: weighing the polyacrylic acid emulsion, the dispersing agent, the defoaming agent, butyl acetate, the silane coupling agent and the composite filler in parts by weight;
step two: adding the composite filler into a planetary ball mill for treatment for 50-60 minutes to obtain a mixture A;
step three: sending the mixture A prepared in the step two into a tubular furnace, introducing nitrogen, heating to 720-760 ℃, then preserving heat for 2-4 hours, introducing a sodium hydroxide solution into the tubular furnace in the heat preservation process, and cooling after heat preservation to obtain a mixture B;
step four: adding the dispersing agent, the silane coupling agent and the mixture B prepared in the step one into deionized water, and then carrying out ultrasonic treatment for 30-50 minutes to obtain a mixture C;
step five: and (3) mixing the mixture C obtained in the fourth step with the polyacrylic acid emulsion, the defoaming agent and butyl acetate obtained in the first step, performing ultrasonic treatment for 50-60 minutes, and drying to obtain the high-glossiness antioxidant coating.
8. The method for preparing the high-glossiness anti-oxidation coating according to claim 7, wherein the method comprises the following steps: in the second step, the revolution speed of the planetary ball mill is 240-300 r/min, and the rotation speed is 480-600 r/min; in the third step, heating is carried out at the speed of 4-8 ℃/min, the concentration of the sodium hydroxide solution is 2-6 mol/L, and the introduction rate of the sodium hydroxide solution is 1-3L/h; after the heat preservation is carried out for 30 minutes, introducing a sodium hydroxide solution for 40-50 minutes; in the fourth step, the weight portion ratio of the mixture B to the deionized water is 1: 30, the ultrasonic treatment frequency is 20-26 KHz, and the ultrasonic power is 800-1400W; in the fifth step, the ultrasonic treatment frequency is 24-30 KHz, and the ultrasonic power is 600-1200W.
9. The method for preparing the high-glossiness anti-oxidation coating according to claim 8, wherein the method comprises the following steps: in the second step, the revolution speed of the planetary ball mill is 240r/min, and the rotation speed is 480 r/min; in the third step, the temperature is raised at the speed of 4 ℃/min, the concentration of the sodium hydroxide solution is 2mol/L, and the introduction rate of the sodium hydroxide solution is 1L/h; after the heat preservation is carried out for 30 minutes, introducing a sodium hydroxide solution for 40 minutes; in the fourth step, the weight portion ratio of the mixture B and the deionized water is 1: 30, the ultrasonic treatment frequency is 20KHz, and the ultrasonic power is 800W; in the fifth step, the ultrasonic treatment frequency is 24KHz, and the ultrasonic power is 600W.
10. The method for preparing the high-glossiness anti-oxidation coating according to claim 8, wherein the method comprises the following steps: in the second step, the revolution speed of the planetary ball mill is 270r/min, and the rotation speed is 540 r/min; in the third step, the temperature is raised at the speed of 6 ℃/min, the concentration of the sodium hydroxide solution is 4mol/L, and the introduction rate of the sodium hydroxide solution is 2L/h; after the heat preservation is carried out for 30 minutes, introducing a sodium hydroxide solution for 45 minutes; in the fourth step, the weight portion ratio of the mixture B and the deionized water is 1: 30, the ultrasonic treatment frequency is 23KHz, and the ultrasonic power is 1100W; in the fifth step, the ultrasonic treatment frequency is 27KHz, and the ultrasonic power is 900W.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115058197A (en) * | 2022-05-27 | 2022-09-16 | 海南宏鑫达防水工程有限公司 | Multipurpose coating and using method thereof |
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