Ultrasonic Atomizing Spray Equipment For Nanofilm Coating

Ultrasonic Atomizing Spray Equipment for Nanofilm Coating

 

1. What is Nanofilm Spraying?

Nanofilms are thin-layer materials with thicknesses in the nanoscale range, commonly used to improve the conductivity, optical properties, surface wettability, and other functions of substrates. Traditional thin-film preparation methods include spin coating, dip coating, sputtering, and atomic layer deposition. Ultrasonic atomization spraying, through liquid atomization and deposition, provides an option for solution-based thin-film preparation

2. Working Principle of Ultrasonic Atomizing Spray Coating Equipment

Ultrasonic atomizing spray coating equipment mainly consists of an ultrasonic generator, atomizing nozzle, liquid supply system, carrier gas system, and motion platform. Its basic working process is as follows:

1. The nanomaterial solution or coating solution is delivered to the ultrasonic atomizing nozzle.

2. Ultrasonic vibration causes the liquid to form fine droplets.

3. The carrier gas transports the droplets to the substrate surface.

4. The droplets spread, dry, or undergo post-treatment on the substrate.

5. A thin film of the target thickness is formed through multiple sprays..

 

3. Advantages of Ultrasonic Atomization Spraying for Nanofilms

Uniform Atomization: Ultrasonic atomizing nozzles generate fine droplets through high-frequency vibration, which helps improve the uniformity of coating deposition. Droplet size, spraying distance, liquid supply speed, and substrate condition all affect the final film quality.

Precise Control of Film Thickness: Film thickness can be precisely controlled by adjusting the number of sprays, liquid supply speed, nozzle movement speed, and solution concentration.

Improved Material Utilization: Ultrasonic spraying typically employs low-speed atomization and a gentler spraying method, reducing some splashing and overspray, thus helping to reduce material waste. Actual material utilization still depends on the spraying system, substrate size, solution properties, and recovery method.

Suitable for Large-Area Film Preparation: Ultrasonic atomization spraying can be combined with automated motion platforms to achieve large-area coating on planar substrates.

4. Applications of Ultrasonic Atomization Spraying for Nanofilms

Transparent Conductive Films: Ultrasonic spraying can be used to study conductive polymer films such as PEDOT:PSS, and is suitable for the development of transparent conductive layers and organic electronic materials.

Semiconductor and Electronic Materials: It can be used for research on functional coatings on silicon wafer surfaces, photoresist coating, and organic electronic thin films.

Optical Functional Films: Materials such as nano-silica can be used to prepare structural color films and other optical functional coatings.

Hydrophilic and Hydrophobic Coatings: Ultrasonic spraying can be used to prepare hydrophilic, hydrophobic, and other surface functional films; specific properties depend on the coating material and surface treatment process.

New Energy Materials: It can be used for the research and processing of functional layers in thin-film solar cells and other new energy material coatings.

5. RPS-SONIC Ultrasonic Atomization Coating Equipment

RPS-SONIC ultrasonic atomization coating equipment is suitable for applications such as nanomaterial coatings, functional thin films, electronic materials, and precision surface coating. The equipment can be customized according to the customer's material characteristics, substrate size, coating area, and production requirements.

High-Precision Ultrasonic Atomization: Utilizes high-frequency ultrasonic atomization technology to help achieve stable and uniform droplet spraying.

Uniform Thin Film Coating: Suitable for uniform thin film preparation through control of process parameters such as liquid supply, spraying speed, and spraying times.

Customized Coating Solutions: Suitable ultrasonic coating solutions can be designed according to the customer's material characteristics, substrate size, coating area, and production requirements.