CN113716897A - Synthesis process of nano ceramic coating damping - Google Patents
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Abstract
The invention discloses a synthesis process of nano ceramic coating damping, which relates to the technical field of coatings and comprises the following steps: and preparing mixed dry powder by a hot-pressing sintering process, fully mixing and stirring in ethanol to obtain mixed suspension, introducing nitrogen as dry gas at high temperature, ultrasonically stirring and drying, grinding for 30 minutes to obtain original nano ceramic aggregate powder, adding a coupling agent, mixing to obtain mixed powder, and mixing and stirring the obtained mixed powder and water to obtain the novel nano ceramic coating damping material. The ceramic coating obtained by the synthesis process has the advantages of low through-hole rate, low cost of used materials, small heat resistance coefficient, good heat insulation effect and no secondary pollution.
Description
Technical Field
The invention belongs to the technical field of coatings, and particularly relates to a synthesis process of nano ceramic coating damping.
Background
Polyurethane board, phenolic aldehyde board, polyphenyl board, rock wool board are used as the outer thermal-insulated insulation material of building mostly to present building coating material, but because above its material reason the coefficient of heat conductivity of material is too big, and material itself also can't bear high temperature, often can't effectively block the heat source when the building conflagration breaks out, causes the loss of lives and property, and above-mentioned building coating material can release a large amount of poisonous dense smoke when burning, and the waste material is difficult to be handled, causes environmental secondary pollution.
The heat insulation coating is a functional coating which has the advantages of heat insulation, sun protection, energy conservation, environmental protection, simple construction, short construction period and quick response and is developed in recent years. The existing more heat insulation coating is an insulation type coating, the heat insulation is realized through the high heat resistance of the coating, the coating belongs to a thick film coating, and the defects caused by the self material structure, such as large drying shrinkage and moisture absorption rate in a drying period, low bonding strength to a wall body, further improvement on decoration and the like, exist. Meanwhile, the effective heat insulation efficiency of the existing heat insulation coating on the market is generally lower than 70%, the heat insulation efficiency is low, a large amount of heat penetrates through the heat, the energy-saving effect is not obvious, the air conditioner is still required to be started at high power for real-time cooling, and the requirements for energy conservation and environmental protection cannot be met.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a synthesis process of nano ceramic coating damping, aiming at synthesizing a new nano coating damping material which can be used for the surface of a building, enhancing the heat insulation effect of the wall of the building, effectively blocking a heat source, reducing the pollution of the existing heat insulation material to the environment and reducing the carbon emission in the coating material industry. The technical scheme of the invention is as follows:
a synthesis process of nano ceramic coating damping comprises the following components in percentage by weight:
s1, mixing the preferable components of 40 parts of silicon carbide, 8 parts of titanium nitride, 8 parts of nano yttrium oxide, 10 parts of aluminum oxide, 5 parts of magnesium oxide, 10 parts of zirconium oxide and 5 parts of nickel oxide uniformly in a dry way according to a ratio, and preparing, crushing and sieving the mixture by a 400-mesh sieve by adopting a hot-pressing sintering process to obtain mixed dry powder with the granularity of below 400 meshes;
s2, adding polyethylene glycol with the weight ratio of 1:1.5-2 to the mixed dry powder, fully mixing in ethanol, and stirring to obtain a mixed suspension;
s3, introducing nitrogen as a drying gas into the obtained suspension at high temperature, and ultrasonically stirring and drying;
s4, grinding the mixture for 30 minutes by using a ball mill after screening to uniformly grind the mixture to obtain original nano ceramic aggregate powder;
s5, adding a coupling agent into the nano ceramic aggregate powder and mixing to obtain mixed powder, wherein the weight ratio of the nano ceramic aggregate powder to the coupling agent is 10: 1-1.2;
s6, mixing the mixed powder obtained in the step S5 with water according to the mass ratio of 2: 1-1: 1, and spraying the obtained coating material to the surface layer of a building wall by using a common spray gun, or performing multiple coating by using a slurry brush to the thickness of the required coating.
As a further improvement of the invention, the temperature of the hot-pressing sintering process in S1 is 1300-1450 ℃, and the temperature is kept for 2-5 hours.
As a further improvement of the invention, the high-temperature treatment temperature in the S3 is 800-950 ℃, and the drying time is 1-3 hours.
As a further improvement of the present invention, the size of the nano ceramic agglomerate powder obtained in S4 is 50 nm or less.
As a further improvement of the present invention, the coupling agent added in S5 may be selected from a silane coupling agent or a titanate coupling agent, and is preferably a silane coupling agent.
As a further improvement of the invention, the coating material prepared in S6 is generally sprayed to a thickness of 2-5 mm.
The invention has the beneficial effects that:
1. compared with the traditional heat insulation material, the novel nano ceramic coating damping material prepared by the invention has the advantages of small heat resistance coefficient and better heat resistance effect, can achieve excellent heat resistance effect only by using an extremely thin coating when being sprayed and used actually, and is more environment-friendly without causing secondary pollution.
2. The coating synthesis process can effectively reduce the defects of high through hole rate, poor acid resistance and the like of the nano ceramic material in steps, and has better wear resistance.
3. The synthesis process adopted by the invention has low production material price, can be produced in large scale and is convenient to use, and can be directly mixed with water for use.
Detailed Description
The following description of the preferred embodiments of the present invention is provided for the purpose of illustration and description, and is in no way intended to limit the invention.
Example 1
S1, selecting 40 parts of silicon carbide, 8 parts of titanium nitride, 8 parts of nano yttrium oxide, 10 parts of aluminum oxide, 5 parts of magnesium oxide, 10 parts of zirconium oxide and 5 parts of nickel oxide according to the proportion, uniformly dry-mixing the above preferable components in proportion, preparing and crushing by adopting a hot-pressing sintering process, sieving by a 400-mesh sieve to obtain mixed dry powder with the particle size below 400 meshes, keeping the hot-pressing temperature at 1400 ℃, and preserving the heat for 5 hours;
s2, adding polyethylene glycol with the weight ratio of 1:2 to the mixed dry powder, fully mixing in ethanol, and stirring to obtain a mixed suspension;
s3, introducing nitrogen as a drying gas into the obtained suspension at the high temperature of 900 ℃, and ultrasonically stirring and drying for 3 hours;
s4, grinding the mixture for 30 minutes by using a ball mill after screening to uniformly grind the mixture to obtain original nano ceramic aggregate powder with the particle size of less than 45 nanometers;
s5, adding a silane coupling agent into the nano ceramic aggregate powder to mix to obtain mixed powder, wherein the weight ratio of the silane coupling agent to the nano ceramic aggregate powder is 10:1, and through holes formed by the nano ceramic in the previous process can be eliminated;
s6, mixing the mixed powder obtained in the step S5 with water according to the mass ratio of 2: 1, mixing and stirring to obtain the novel material for damping the nano ceramic coating, and spraying the obtained coating material to the surface layer of a building wall by using a common spray gun or performing multiple coating to the thickness of the required coating by using a slurry brushing type brush.
Example 2
S1, selecting 30 parts of silicon carbide, 5 parts of titanium nitride, 7 parts of nano yttrium oxide, 8 parts of aluminum oxide, 5 parts of magnesium oxide, 8 parts of zirconium oxide and 5 parts of nickel oxide according to the proportion, uniformly dry-mixing the above preferable components in proportion, preparing, crushing and sieving by a 300-mesh sieve by adopting a hot-pressing sintering process to obtain mixed dry powder with the particle size below 300 meshes, wherein the hot-pressing temperature is 1300 ℃, and preserving heat for 4 hours;
s2, adding polyethylene glycol with the weight ratio of 1:2 to the mixed dry powder, fully mixing in ethanol, and stirring to obtain a mixed suspension;
s3, introducing nitrogen as a drying gas into the obtained suspension at the high temperature of 850 ℃ to perform ultrasonic stirring and drying for 2 hours;
s4, grinding the mixture for 30 minutes by using a ball mill after screening to uniformly grind the mixture to obtain original nano ceramic aggregate powder with the particle size of less than 40 nanometers;
s5, adding a silane coupling agent into the nano ceramic aggregate powder to mix to obtain mixed powder, wherein the weight ratio of the silane coupling agent to the nano ceramic aggregate powder is 10:1, and through holes formed by the nano ceramic in the previous process can be eliminated;
s6, mixing the mixed powder obtained in the step S5 with water according to the mass ratio of 2: 1, mixing and stirring to obtain the new material of the nano ceramic coating damping.
The nano crystals of the obtained coating material are more compact, and the heat insulation effect is better.
Example 3
S1, selecting components of 35 parts of silicon carbide, 7 parts of titanium nitride, 10 parts of nano yttrium oxide, 8 parts of aluminum oxide, 8 parts of magnesium oxide, 10 parts of zirconium oxide and 7 parts of nickel oxide, uniformly dry-mixing the above preferred components in proportion, preparing and crushing by adopting a hot-pressing sintering process, sieving by a 400-mesh sieve to obtain mixed dry powder with the particle size below 400 meshes, keeping the hot-pressing temperature at 1400 ℃, and preserving the heat for 3 hours;
s2, adding polyethylene glycol with the weight ratio of 1:1.5 to the mixed dry powder, fully mixing in ethanol, and stirring to obtain a mixed suspension;
s3, introducing nitrogen as a drying gas into the obtained suspension at the high temperature of 900 ℃, and ultrasonically stirring and drying for 3 hours;
s4, grinding the mixture for 30 minutes by using a ball mill after screening to uniformly grind the mixture to obtain original nano ceramic aggregate powder with the particle size of less than 40 nanometers;
s5, adding a titanate coupling agent into the nano ceramic aggregate powder to mix to obtain mixed powder, wherein the weight ratio of the titanate coupling agent to the nano ceramic aggregate powder is 10:1.2, and through holes formed by the nano ceramic in the previous process can be eliminated;
s6, mixing the mixed powder obtained in the step S5 with water according to the mass ratio of 1.5: 1, mixing and stirring to obtain the new material of the nano ceramic coating damping.
The ceramic coating new material obtained in the way has few through holes and compact structure, the using thickness of the coating can be preferably 3mm, and the heat insulation effect is good.
Example 4
S1, selecting components of 40 parts of silicon carbide, 8 parts of titanium nitride, 8 parts of nano yttrium oxide, 9 parts of aluminum oxide, 5 parts of magnesium oxide, 8 parts of zirconium oxide and 6 parts of nickel oxide, uniformly and dryly mixing the above preferred components in proportion, preparing and crushing the mixture by adopting a hot-pressing sintering process, sieving the crushed mixture by using a 300-mesh sieve to obtain mixed dry powder with the particle size of less than 300 meshes, keeping the hot-pressing temperature at 1300 ℃ for 4 hours, and carrying out other steps as in example 1.
Example 5
S1, selecting the components of 30 parts of silicon carbide, 6 parts of titanium nitride, 10 parts of nano yttrium oxide, 8 parts of aluminum oxide, 7 parts of magnesium oxide, 9 parts of zirconium oxide and 7 parts of nickel oxide, uniformly and dryly mixing the above preferred components in proportion, preparing and crushing the mixture by adopting a hot-pressing sintering process, sieving the crushed mixture by a sieve of 400 meshes to obtain mixed dry powder with the particle size of less than 400 meshes, keeping the hot-pressing temperature at 1400 ℃, preserving the heat for 3 hours, and carrying out the other steps in the same way as in the example 2.
Example 6
S1, selecting components of 35 parts of silicon carbide, 7 parts of titanium nitride, 8 parts of nano yttrium oxide, 9 parts of aluminum oxide, 6 parts of magnesium oxide, 9 parts of zirconium oxide and 7 parts of nickel oxide, uniformly and dryly mixing the above preferred components in proportion, preparing and crushing the mixture by adopting a hot-pressing sintering process, sieving the crushed mixture by a 350-mesh sieve to obtain mixed dry powder with the particle size of less than 350 meshes, keeping the hot-pressing temperature at 1350 ℃ for 4 hours, and carrying out other steps as in example 3.
The coating produced in each example has the following test data:
the foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (6)
1. A synthesis process of nano ceramic coating damping is characterized by comprising the following components in percentage by weight:
30-40 parts of silicon carbide;
5-8 parts of titanium nitride;
7-10 parts of nano yttrium oxide;
8-10 parts of nano aluminum oxide;
5-8 parts of nano magnesium oxide;
8-10 parts of nano zirconia;
5-8 parts of nano nickel oxide;
s1, uniformly mixing the components in proportion, preparing and crushing the mixture by adopting a hot-pressing sintering process, and sieving the crushed mixture by using a 300-400-mesh sieve to obtain mixed dry powder with the particle size of below 300-400 meshes;
s2, adding polyethylene glycol with the weight ratio of 1:1.5-2 to the mixed dry powder, fully mixing in ethanol, and stirring to obtain a mixed suspension;
s3, introducing nitrogen as a drying gas into the obtained suspension at high temperature, and ultrasonically stirring and drying;
s4, grinding the mixture for 30 minutes by using a ball mill after screening to uniformly grind the mixture to obtain original nano ceramic aggregate powder;
s5, adding a coupling agent into the nano ceramic aggregate powder and mixing to obtain mixed powder, wherein the weight ratio of the nano ceramic aggregate powder to the coupling agent is 10: 1-1.2;
s6, mixing the mixed powder obtained in the step S5 with water according to the mass ratio of 2: 1-1: 1, and spraying the obtained coating material to the surface layer of a building wall by using a common spray gun, or performing multiple coating by using a slurry brush to the thickness of the required coating.
2. The synthesis process of a nano ceramic coating damping as claimed in claim 1, wherein the temperature of the hot pressing sintering process in S1 is 1300-1450 ℃, and the temperature is maintained for 2-5 hours.
3. The synthesis process of the nano-ceramic coating damper as claimed in claim 1, wherein the high temperature treatment temperature in the S3 is 800-950 ℃, and the drying time is 1-3 hours.
4. The process of claim 1, wherein the size of the nano ceramic agglomerate powder obtained in S4 is less than 50 nm.
5. The synthesis process of a nano ceramic coating damper as claimed in claim 1, wherein the coupling agent added in S5 is selected from silane coupling agent or titanate coupling agent, preferably silane coupling agent.
6. The process of claim 1, wherein the coating material prepared in S6 is generally sprayed to a thickness of 2-5 mm.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115558321A (en) * | 2022-11-11 | 2023-01-03 | 上海瀛正科技有限公司 | Novel flexible nano ceramic heat-resistant coating material |
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| CN105294109A (en) * | 2015-09-25 | 2016-02-03 | 洛阳暖盈电子技术有限公司 | Heat-resistant nano ceramic coating |
| CN108863391A (en) * | 2018-07-24 | 2018-11-23 | 曹志欢 | A kind of preparation method of composite ceramic coat |
| CN109111768A (en) * | 2018-07-18 | 2019-01-01 | 安徽诺辰新型材料有限公司 | Ceramic coating |
| CN109385155A (en) * | 2018-10-24 | 2019-02-26 | 合肥晓拂新能源有限公司 | Nano ceramics fireproof coating |
| GB201906105D0 (en) * | 2019-05-01 | 2019-06-12 | Adelan Ltd | Ceramic composite |
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| CN105294109A (en) * | 2015-09-25 | 2016-02-03 | 洛阳暖盈电子技术有限公司 | Heat-resistant nano ceramic coating |
| CN109111768A (en) * | 2018-07-18 | 2019-01-01 | 安徽诺辰新型材料有限公司 | Ceramic coating |
| CN108863391A (en) * | 2018-07-24 | 2018-11-23 | 曹志欢 | A kind of preparation method of composite ceramic coat |
| CN109385155A (en) * | 2018-10-24 | 2019-02-26 | 合肥晓拂新能源有限公司 | Nano ceramics fireproof coating |
| GB201906105D0 (en) * | 2019-05-01 | 2019-06-12 | Adelan Ltd | Ceramic composite |
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| CN115558321A (en) * | 2022-11-11 | 2023-01-03 | 上海瀛正科技有限公司 | Novel flexible nano ceramic heat-resistant coating material |
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Application publication date: 20211130 |