Application of Ultrasonic Spray Machine to Spray Graphene onto Linear Materials

Ultrasonic spraying machines, with their precision atomization advantages, have become the core equipment for functionalizing graphene on linear material surfaces, effectively solving pain points such as graphene agglomeration, uneven coating, and material waste in traditional spraying. They are widely used in fields such as flexible electronics and intelligent textiles.

Its working principle is clear and easy to understand: the ultrasonic spraying machine converts high-frequency electrical signals into mechanical vibrations through a piezoelectric transducer, which acts on the graphene dispersion to form uniform micrometer sized droplets, without the need for high-pressure gas assistance, relying solely on weak carrier gas to guide the precise deposition of droplets on the surface of linear materials. Linear materials pass through the spraying area at a constant speed, coupled with an XYZ three-axis motion control system to ensure continuous and uniform coating thickness.

This process has significant advantages: firstly, it has good coating uniformity, which can avoid the aggregation of graphene layers and ensure their excellent conductivity and thermal conductivity are fully utilized. The coating thickness deviation can be controlled within ± 5%; Secondly, the material utilization rate is high, reaching over 95%, effectively reducing the cost of using graphene; The third is non-contact spraying, which will not damage linear substrates such as fibers and metal wires, and is suitable for various materials.

In practical applications, graphene needs to be first made into a suitable dispersion, with viscosity controlled between 2-50 CPS, and then transported to the nozzle through a precision pump. The spraying frequency and appropriate gas flow rate should be adjusted between 60-120 kHz. After spraying and drying, a dense functional coating is formed on the surface of linear materials.
This technology can endow linear materials with new characteristics, such as spraying graphene on yarn to make smart yarn for electric clothing; Spraying on metal wires can enhance their anti-corrosion and conductive properties, promote the technological upgrade of flexible electronics and advanced composite materials, and combine practicality and economy.

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.

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