Ultrasonic Spraying Hydrophilic Coating
Ultrasonic Spraying Hydrophilic Coating – Cheersonic
Molecules with polar groups have great affinity for water and can attract water molecules or dissolve in water. The surfaces of solid materials formed by such molecules are easily wetted by water. Having this characteristic is the hydrophilicity of the substance.
Hydrophilicity refers to the physical property of molecules capable of forming transient bonds with water through hydrogen bonds. Due to the appropriate thermodynamics, this molecule can be dissolved not only in water, but also in other polar solutions. A hydrophilic molecule, or the hydrophilic portion of a molecule, is one that has the ability to polarize to the point where it can form hydrogen bonds and make it more soluble in water than oil or other hydrophobic solutions . Hydrophilic and hydrophobic molecules can also be referred to as polar and nonpolar molecules, respectively.
Hydrophilic The property that the surface of a material is wetted by water. It is an interface phenomenon, and the essence of the wetting process is the change of properties and energy at the material interface. When the cohesive force between water molecules is less than the mutual attraction between water molecules and solid material molecules, the material is wetted by water, and this kind of material is hydrophilic, called hydrophilic material.
Advantages of ultrasonic spraying equipment
1. High uniformity.
Ultrasonic spraying is a spraying method based on ultrasonic atomization technology. The fog droplets lightly fall on the substrate, so that the uniformity of the coating can reach more than 95%.
2. High stability.
The high-precision syringe keeps the liquid supply speed in a stable state, with an accuracy as high as 0.01μL/min, so that the atomization amount per unit time remains stable.
3. The nozzle is not blocked and the maintenance cost is low.
Since the ultrasonic nozzle realizes liquid atomization through ultrasonic oscillation, and the atomized particles are determined by the ultrasonic oscillation frequency, it is different from the two-fluid nozzle, and the aperture of the nozzle does not need to be small to achieve fine atomized particles, so it reduces risk of nozzle clogging.
4. High raw material utilization rate and less splash.
Since ultrasonic spraying is liquid atomization through ultrasonic oscillation, the process of coating atomization does not require any gas, that is, the atomization process does not require pressure, and only a very low carrier gas pressure is applied to transport the liquid mist after atomization. Therefore, It greatly reduces the rebound and splash of liquid caused by high-pressure air spraying of two fluids, thus greatly improving the utilization rate of paint. The raw material utilization rate of ultrasonic spraying is more than 4 times that of ordinary air spraying, and the utilization rate can reach more than 90%.
5. The thickness of the coating is thin, which can reach tens of nanometers.
Since the spray volume of the ultrasonic nozzle can achieve a very low and stable flow rate (0.001ml/min), it can achieve very little loading on the substrate, thereby achieving a very thin dry film. For some nanomaterials, the dry film thickness can be as low as tens of nanometers. It can be used to prepare glass films such as transparent conductive films, anti-reflection and anti-reflection films, heat insulation films, hydrophilic and hydrophobic films, etc.
About Cheersonic
Cheersonic is the leading developer and manufacturer of ultrasonic coating systems for applying precise, thin film coatings to protect, strengthen or smooth surfaces on parts and components for the microelectronics/electronics, alternative energy, medical and industrial markets, including specialized glass applications in construction and automotive.
Our coating solutions are environmentally-friendly, efficient and highly reliable, and enable dramatic reductions in overspray, savings in raw material, water and energy usage and provide improved process repeatability, transfer efficiency, high uniformity and reduced emissions.
Chinese Website: Cheersonic Provides Professional Coating Solutions
