Super-hydrophobic coating containing candle soot and preparation method of same

[0023] Example 1

[0024] Preparation of a super-hydrophobic coating containing candle soot:

[0025] S1. The deposition of candle soot on the surface of the glass substrate: After the glass slide (rectangular, 7.6cm*2.6cm) is washed and dried, the surface that needs to be prepared with a hydrophobic coating covers 1 / 3 to 1 of the burning candle / 2 flame and move the glass slide until the surface where the hydrophobic coating needs to be prepared is evenly covered with a layer of candle soot, and the thickness of this layer of candle soot is about 2 μm;

[0026] S2. Preparation of super-hydrophobic coating by vapor deposition: Put the glass slide covered with candle soot prepared in S1 into a cylindrical crucible (diameter 10cm, height 2cm), and add 0.15mL to the crucible (0.44mmol) liquid perfluorodecyltrichlorosilane, heated to 224°C to completely transform the liquid perfluorodecyltrichlorosilane into gaseous state, the concentration of gaseous perfluorodecyltrichlorosilane in a

[0027] Example 2

[0028] Preparation of a super-hydrophobic coating containing candle soot:

[0029] S1. The deposition of candle soot on the surface of the glass substrate: After the glass slide (rectangular, 7.6cm*2.6cm) is washed and dried, the surface that needs to be prepared with a hydrophobic coating covers 1 / 3 to 1 of the burning candle / 2 flame and move the glass slide until the surface where the hydrophobic coating needs to be prepared is evenly covered with a layer of candle soot, the thickness of this layer of candle soot is about 3.5 μm; figure 1 Is the scanning electron microscope image of the candle soot deposited on the glass slide. figure 1 It can be seen that the candle soot forms a nano-sized rough structure on the surface of the glass slide.

[0030] S2. Preparation of super-hydrophobic coating by vapor deposition: Put the glass slide covered with candle soot prepared in S1 into a cylindrical crucible (diameter 10cm, height 2cm), and add 0.3mL to the crucible (

[0031] Example 3

[0032] Preparation of a super-hydrophobic coating containing candle soot:

[0033] S1. The deposition of candle soot on the surface of the glass substrate: After the glass slide (rectangular, 7.6cm*2.6cm) is washed and dried, the surface that needs to be prepared with a hydrophobic coating covers 1 / 3 to 1 of the burning candle / 2 flame and move the glass slide until the surface where the hydrophobic coating needs to be prepared is evenly covered with a layer of candle soot, the thickness of this layer of candle soot is about 5 μm;

[0034] S2. Preparation of super-hydrophobic coating by vapor deposition: Put the glass slide covered with candle soot prepared in S1 into a cylindrical crucible (diameter 10cm, height 2cm), and add 0.5 mL to the crucible (1.47mmol) Liquid perfluorodecyltrichlorosilane, heated to 230°C to completely transform the liquid perfluorodecyltrichlorosilane into gaseous state, the concentration of gaseous perfluorodecyltrichlorosilane in a clo