A kind of preparation method of hydrophobic ceramic surface

A ceramic surface and ceramic technology, which is applied in the field of preparation of hydrophobic ceramic surfaces, can solve the problems of difficulty in achieving uniformity and integrity of hydrophobic properties, complicated process, and high cost, and achieve good stability of hydrophobic properties, simple process, and low cost. Effect

Active Publication Date: 2015-12-30
CHONGQING INST OF GREEN & INTELLIGENT TECH CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some existing technologies often prepare hydrophobic ceramics from the water transport properties of the ceramic materials themselves, or need to redesign and prepare hydrophobic coatings, resulting in high costs, complicated processes, and difficulty in popularization.
Especially for most methods, it is difficult to achieve the uniformity and integrity of hydrophobic properties for special-shaped ceramic surfaces

Method used

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  • A kind of preparation method of hydrophobic ceramic surface
  • A kind of preparation method of hydrophobic ceramic surface

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Wash the crucible cover with water, dry it in a drying oven and cool it to room temperature for later use.

[0021] The pH value of the 40ml toluene solution was adjusted to 9.0 with an appropriate amount of triethylamine. Next, 50 μL of octadecyltrichlorosilane was added dropwise to the above solution, dispersed by ultrasonic (frequency 25 kHz), and the crucible lid was immersed in the above solution for 5 minutes under the condition of ultrasonic oscillation. Two drops of distilled water were added dropwise to 2 mL of acetone solution to form a mixed solution, and the mixed solution was added dropwise to the above solution, and 0.05 g of zinc powder was added, and ultrasonic oscillation was continued for 5 minutes. From the above solution, take out the crucible lid and wash it with ethanol, acetone, distilled water to prepare a crucible lid with a hydrophobic surface.

[0022] After the crucible cover is processed by the present invention, the droplet effect formed b...

Embodiment 2

[0024] Wash the crucible cover with water, dry it in a drying oven and cool it to room temperature for later use.

[0025] The pH value of the 40ml ethanol solution was adjusted to 10.0 with an appropriate amount of triethylamine. Next, 40 μL of octadecyltrichlorosilane was added dropwise to the above solution, dispersed by ultrasonic (frequency 25 kHz), and the crucible lid was immersed in the above solution for 3 minutes under the condition of ultrasonic oscillation. Two drops of distilled water were added dropwise to 2 mL of acetone solution to form a mixed solution, and the mixed solution was added dropwise to the above solution, and 0.05 g of aluminum powder was added, and ultrasonic oscillation was continued for 5 minutes.

[0026] From the above solution, take out the crucible lid and wash it with ethanol, acetone, distilled water to prepare a crucible lid with a hydrophobic surface.

[0027] After being treated by the method of the invention, the hydrophobic property ...

Embodiment 3

[0029] Wash the crucible cover with water, dry it in a drying oven and cool it to room temperature for later use.

[0030] Use an appropriate amount of triethylamine to adjust the pH value of 40ml of the mixed solution of toluene and ethanol (volume ratio 1:1) to 9.0. Next, 40 μL of octadecyltrichlorosilane was added dropwise to the above solution, dispersed by ultrasonic (frequency 25 kHz), and the crucible lid was immersed in the above solution for 5 minutes under the condition of ultrasonic oscillation. Two drops of distilled water were added dropwise to 2 mL of acetone solution to form a mixed solution, and the mixed solution was added dropwise to the above solution, and 0.05 g of zinc powder was added, and ultrasonic oscillation was continued for 5 minutes. From the above solution, take out the crucible lid and wash it with ethanol, acetone, distilled water to prepare a crucible lid with a hydrophobic surface.

[0031] After being treated by the method of the invention, ...

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Abstract

The invention provides a hydrophobic ceramic surface preparation method, which comprises the following steps: 1, cleaning the surface of ceramics to be treated, and drying the ceramics to be treated for standby; 2, adjusting the PH value of a mixed solution of a silane compound / organic solvent to 8.0 to 9.0 to obtain a first solution; 3, placing the ceramics treated in the step 1 in the first solution, and performing ultrasonic treatment for a first predetermined time; 4, adding metal powder and a mixed solution of water and acetone into the first solution, and performing ultrasonic treatment for a second predetermined time; 5, taking out the ceramics from the first solution, so as to obtain hydrophobic ceramics. Simple equipment is used, the method is low in cost, high in reproducibility and production efficiency and suitable for large-scale production, a process is simple, and the production cycle can be controlled to be within several minutes.

Description

technical field [0001] The invention relates to the field of hydrophobic ceramics, in particular to a method for preparing a surface of hydrophobic ceramics. Background technique [0002] With the advancement of science and technology, people have higher and higher requirements for ceramic properties, and the development of ceramic materials with special properties has become a new research focus. Hydrophobic modification of the surface of ceramic materials has positive significance in terms of energy saving, environmental protection, and improvement of people's quality of life. [0003] Reducing the surface free energy of ceramic materials and increasing the microscopic roughness of the material surface are important ways to improve the hydrophobicity of the material surface. The reported surface hydrophobic treatment methods of ceramic materials include: surface modification of low surface energy substances, doping method, template method, etching method, sol-gel (sol-gel...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B41/88
Inventor 崔月华曹良成
Owner CHONGQING INST OF GREEN & INTELLIGENT TECH CHINESE ACADEMY OF SCI
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