CN-117467291-B - Diatomite modified water glass carbon-based electric heating coating and preparation method and application thereof

Abstract

The invention discloses a diatomite modified water glass carbon-based electric heating coating and a preparation method and application thereof, and belongs to the technical field of electric heating function coating preparation. The preparation method comprises the steps of taking activated diatomite, water glass, carbon black, graphite, graphene, a silane coupling agent and the like as raw materials, mixing and stirring to prepare the diatomite modified water glass carbon-based electric heating coating, brushing a template, and performing heat curing treatment to finally prepare the diatomite modified water glass carbon-based electric heating coating. According to the invention, the diatomite subjected to activation treatment is added into the coating, so that the temperature of the coating is increased by 25% -30%, and the power consumption is reduced by 20% -25%. Meanwhile, the process is simple, efficient and temperature-controllable. Can be widely applied to special pavements such as aircraft runways and the like which need quick deicing and snow removing, or the fields such as heating of petroleum transportation pipelines and the like.

Inventors

• HU HONGLIANG
• Lu Zhipi
• SUN ZHANYI
• WANG SHUANGNING
• YU LONGFEI
• WANG HUAN
• LI DAI
• WANG GUOQIANG
• YU LANG
• JIN YUJIE
• XU HAIBO
• JIANG DAWEI
• LIU LONGXIANG
• XIAO LIGUANG
• ZHU FU
• LI JUNBIN
• DING XU

Assignees

• 吉林建筑大学

Dates

Publication Date

20260508

Application Date

20231206

Claims (5)

1. 1. The diatomite modified water glass carbon-based electrothermal paint is characterized in that the preparation raw materials comprise 100 parts by mass of distilled water, 5-20 parts by mass of carbon-based filler, 0.5-1 part by mass of sodium dodecyl sulfate, 1-3 parts by mass of silane coupling agent, 100-200 parts by mass of water glass and 5-10 parts by mass of activated diatomite; the carbon-based filler comprises at least one of nano carbon black, nano graphite, graphene, carbon nano tube and fullerene; The activation method of the diatomite comprises the steps of carrying out high-temperature activation at 400-800 ℃ on the diatomite, keeping for 10-30 minutes, taking out, and cooling to room temperature for standby.
2. 2. The diatomite modified water glass carbon-based electrothermal paint of claim 1, wherein the specification of diatomite comprises high purity diatomite or secondary and tertiary diatomite.
3. 3. The preparation method of the diatomite modified water glass carbon-based electric heating paint according to claim 1 or 2 is characterized by comprising the following steps of mixing distilled water with carbon-based filler and sodium dodecyl sulfate according to a proportion to obtain a first mixture, and stirring for 10 minutes at a rotating speed of 1500/min when the first mixture is prepared; Mixing the first mixture, the silane coupling agent and water glass according to a proportion to obtain a second mixture, and stirring for 15 minutes at 2500 rotating speed when preparing the second mixture; and mixing the second mixture with diatomite according to a proportion to obtain the diatomite modified water glass carbon-based electric heating paint, wherein the second mixture is stirred for 10 minutes at a rotating speed of 2500/min when being mixed with the diatomite.
4. 4. The diatomite modified water glass carbon-based electrothermal coating prepared by using the diatomite modified water glass carbon-based electrothermal coating of claim 1 or 2.
5. 5. The preparation method of the diatomite modified water glass carbon-based electrothermal coating according to claim 4 is characterized by comprising the following steps of brushing the diatomite modified water glass carbon-based electrothermal coating according to claim 1 or 2 onto a sample plate, drying at room temperature for 6 hours, and then thermally curing at 100-180 ℃ for 10-30 minutes to obtain the diatomite modified water glass carbon-based electrothermal coating.

Description

Diatomite modified water glass carbon-based electric heating coating and preparation method and application thereof Technical Field The invention belongs to the technical field of preparation of electrothermal functional coatings, and particularly relates to a diatomite modified water glass carbon-based electrothermal coating, a preparation method and application thereof. Background The electrothermal paint is different from anticorrosion and waterproof paint with temperature controlling performance. How to improve the working performance of the electrothermal coating through a plurality of aspects such as technical modification, filler modification and the like has become a hot topic of current domestic and foreign research. Besides good conductivity, the electrothermal coating has the advantages of high heat efficiency, environmental protection, low cost, low energy consumption and the like, and can be widely applied to various fields of construction, traffic, chemical industry and the like. The diatomite is taken as dominant resource in China, so that the problems of high added value, improvement of the development of diatomite production, low proportion of deep processing products with high technical content, low product grade and the like of the diatomite production mainly based on the production mode of raw material exploitation and primary processing are solved. Has become the development of the industry today the problems to be solved and the research emphasis are urgent. In summary, the preparation of the water glass and diatomite inorganic electrothermal coating with high cost performance is realized by taking graphene, carbon black, carbon fiber, diatomite, water glass, silane coupling agent and the like as main raw materials and utilizing an alkali excitation technology and a high-temperature activation technology, and the high temperature, low energy consumption and high cost performance of the coating are realized. Meanwhile, the application of the coating in the field of electrothermal coating is completed, which will promote the technical development in the field of environmental protection technology. The research is not reported at home and abroad. Disclosure of Invention The invention completes the preparation of the diatomite modified water glass carbon-based electric heating paint, realizes the preparation of the inorganic mineral modified electric heating paint, ensures that the inorganic mineral modified electric heating paint is applied to the field of electric heating paint, solves the problems of high electric heating paint cost, low heating efficiency, poor durability and the like, and has simple, efficient and controllable temperature. The technical problems are realized by the following technical scheme: The diatomite modified water glass carbon-based electrothermal paint is prepared from 100 parts by mass of distilled water, 5-20 parts by mass of carbon-based filler, 0.5-1 part by mass of sodium dodecyl sulfate, 1-3 parts by mass of silane coupling agent, 100-200 parts by mass of water glass and 5-10 parts by mass of activated diatomite. Preferably, the carbon-based filler includes at least one of nano carbon black, nano graphite, graphene, carbon nanotube and fullerene. Preferably, the activation method of the diatomite comprises the steps of carrying out high-temperature activation at 400-800 ℃ on the diatomite for 10-30 minutes, taking out and cooling to room temperature for standby. Preferably, the specification of the diatomaceous earth includes high purity diatomaceous earth or secondary-tertiary diatomaceous earth. The invention also aims at providing a preparation method of the diatomite modified water glass carbon-based electric heating paint, which comprises the following steps of mixing distilled water, carbon-based filler and sodium dodecyl sulfate according to a proportion to obtain a first mixture; Mixing the first mixture, the silane coupling agent and water glass according to a proportion to obtain a second mixture; and mixing the second mixture with diatomite according to a proportion to obtain the diatomite modified water glass carbon-based electric heating paint. Preferably, in preparing the first mixture, stirring is carried out at a rotational speed of 1500/min for 10 minutes. Preferably, in preparing the second mixture, stirring is carried out at 2500 rpm for 15 minutes. Preferably, the second mixture is stirred at 2500 rpm for 10 minutes while it is mixed with diatomaceous earth. The invention also provides the diatomite modified water glass carbon-based electric heating coating prepared by using the diatomite modified water glass carbon-based electric heating coating. The invention further aims at providing a preparation method of the diatomite modified water glass carbon-based electrothermal coating, which comprises the following steps of brushing the diatomite modified water glass carbon-based electrothermal coating on a sample plate, drying the sample