A kind of superhydrophobic coating, preparation method and application of superhydrophobic coating
A technology of super-hydrophobic coatings and super-hydrophobic coatings, applied in the field of coatings, can solve the problems of difficult control of super-hydrophobic surfaces and coating micro-nano structures and surfaces, poor uniformity and reproducibility, unfavorable large-area film formation, etc., to achieve Strong durability, mild conditions, and easy film-forming effects
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0042] A method for preparing a superhydrophobic coating, comprising the steps of,
[0043] 1. Solution preparation
[0044] Liquid A: Add alkyd varnish to mixed solvent (diluent (banana water): dichloromethane = 2:1, V / V), ultrasonic cleaner for 10-15mim to obtain a uniform dispersion, of which the alkyd varnish The volume fraction is 14%;
[0045] Solution B: Weigh commercially available hydrophobic silica powder and ultrasonically disperse it in a mixed solvent (carbon tetrachloride: dichloromethane = 7:2, V / V) for 10-15mim to obtain a stable colorless and transparent dispersion. Wherein the mass-volume concentration of silicon dioxide is 44mg / mL;
[0046] Liquid C: Weigh fluorinated graphite powder and disperse it in dichloromethane solvent, ultrasonically disperse for 10-15 minutes to obtain a stable suspension, in which the mass-volume concentration of fluorinated graphite powder is 10 mg / mL;
[0047] Liquid D: Weigh hard polyvinyl chloride powder (UPVC) and disperse ...
Embodiment 2
[0057] In Example 1, in step 2, five solutions were measured according to the volume ratio of A liquid: B liquid: C liquid: D liquid: E liquid according to the volume ratio of 8.5:18:30:6:2, mixed and ultrasonically dispersed to obtain mixture.
[0058] The glass sheet in step 3 is replaced with a PVC plate, and the rest of the operations are the same, and the required superhydrophobic coating can be obtained, the contact angles are all above 150 degrees, and the rolling angles are all less than 7 degrees. Such as image 3 with Figure 7 shown.
Embodiment 3
[0060] In Example 1, in step 2, five solutions were measured according to the volume ratio of A liquid: B liquid: C liquid: D liquid: E liquid according to the volume ratio of 8.5:18:40:6:2, mixed and ultrasonically dispersed to obtain mixture.
[0061] Replace the glass sheet in step 3 with a UPVC plate; in step 4, put the prepared mixed solution in a high-pressure spraying equipment, spray it on the treated UPVC plate, and dry it at room temperature in a ventilated place. The rest of the operations are the same, and you can get The required super-hydrophobic coatings have a contact angle of more than 150 degrees and a rolling angle of less than 7 degrees. Such as Figure 4 with Figure 8 shown.
PUM
| Property | Measurement | Unit |
|---|---|---|
| contact angle | aaaaa | aaaaa |
| angle | aaaaa | aaaaa |
| contact angle | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More