Aqueous Graphene Slurry for Spraying

Aqueous Graphene Slurry for Spraying – Cheersonic

Aqueous graphene slurry is a novel nano-functional slurry prepared by uniformly dispersing graphene nanosheets in an aqueous system, adding an appropriate amount of dispersant, and using a special process. It represents a core form for the large-scale application of graphene and can be prepared through processes such as in-situ reduction and liquid-phase exfoliation. It combines the excellent properties of graphene itself with the environmentally friendly and convenient advantages of an aqueous system. Its core advantages are prominent: ultra-high electrical conductivity, ultra-large specific surface area, and excellent mechanical strength. The aqueous dispersion system is green and environmentally friendly, free of organic solvent pollution, and exhibits strong dispersion stability. It is compatible with various aqueous resin systems, and its performance can be optimized by adjusting the concentration and dispersant ratio. Compared to traditional oil-based graphene slurries, it better aligns with the concept of green production and can meet the dual needs of scientific research and industrial mass production. It is a key supporting material in fields such as corrosion prevention, new energy, and electronics.

However, the large-scale application of aqueous graphene slurry has long been limited by the technical bottleneck of the spraying process. Graphene nanosheets possess high surface energy and strong van der Waals forces between layers, making them prone to aggregation and layer stacking in aqueous systems. Aggregation intensifies significantly with increasing concentration, leading to a substantial decline in their core properties such as conductivity and corrosion resistance. Furthermore, their fragile layer structure makes them susceptible to damage from the high-pressure impacts and mechanical shear forces of traditional air spraying and spin coating processes. These processes not only fail to effectively disperse agglomerated particles but also cause layer breakage, compromising their inherent superior properties. In addition, traditional processes suffer from numerous coating defects, uneven thickness, and significant raw material waste, with a raw material utilization rate of only 30%-50%. Poor coating adhesion also fails to meet the high-precision coating requirements of fields such as precision electronics and high-end corrosion protection, severely hindering their industrialization. Cheersonic Ultrasonic Equipment Co., Ltd., with years of experience in the R&D and manufacturing of ultrasonic nano-equipment, has specifically optimized its core technology based on the characteristics of graphene aqueous slurries, launching a specially adapted ultrasonic spraying machine that completely solves these industry pain points.

Cheersonic ultrasonic spraying machine adopts the core principle of 20kHz-120kHz high-frequency ultrasonic vibration. Relying on the ultrasonic cavitation effect, it atomizes graphene water-based slurry into micron to submicron uniform droplets, which are then directionally transported to the surface of the substrate by a gentle carrier gas. After the droplets spread smoothly and the solvent evaporates naturally, a dense and uniform nanofilm is formed. Compared to traditional spraying processes, this technology offers significant advantages: First, the atomization process is gentle, without high-pressure impact or severe shearing. High-frequency vibration breaks down the forces between agglomerated particles, achieving uniform dispersion while preserving the graphene sheet structure and intrinsic properties, maximizing its excellent conductivity and mechanical strength. Second, the coating uniformity is consistently above 95%, with precise control over thickness error, enabling the preparation of nanoscale ultrathin films, reducing defects such as pinholes and cracks, and ensuring consistent coating performance. Third, non-contact directional deposition achieves a raw material utilization rate of over 90%, nearly double that of traditional processes, significantly reducing the cost of high-value graphene water-based slurries and aligning with green production principles. Fourth, it is compatible with various substrates such as metals, ceramics, plastics, concrete, and flexible polymers, meeting the spraying needs of complex structures such as anti-corrosion coatings, new energy electrodes, electronic devices, and composite material modification.

With the technical support of Cheersonic ultrasonic spraying machines, graphene water-based slurry coatings have achieved breakthrough applications in various fields. In the field of corrosion protection, it can be used to prepare high-efficiency anti-corrosion coatings, suitable for marine engineering construction, metal components, and other scenarios. Leveraging the barrier effect of graphene sheets, it effectively improves the corrosion resistance of the substrate and extends its service life. In the new energy field, it can be sprayed onto the electrode surfaces of lithium batteries and supercapacitors to improve electrode conductivity and energy storage capacity, contributing to the performance upgrade of new energy devices. In the electronics field, it can be used to prepare conductive films, suitable for flexible electronics, PCB boards, and other products, ensuring signal transmission stability. In the composite materials field, it can be used as a modifier sprayed onto the surfaces of various substrates to improve the mechanical strength, conductivity, and wear resistance of materials, expanding the application scenarios of materials.

Cheersonic Ultrasonic Equipment Co., Ltd., addressing the characteristics of graphene water-based slurries such as easy agglomeration, fragile sheets, and sensitivity to dispersion stability, has further optimized the core components and control system of its ultrasonic spraying machine. This allows for precise control of parameters such as spraying frequency, amplitude, and carrier gas velocity. It can flexibly adapt to graphene water-based slurries of different concentrations and dispersion systems. The equipment is highly automated, easy to operate, and can achieve a seamless transition from laboratory pilot testing to industrial mass production. Meanwhile, the company provides end-to-end customized services, optimizing spraying parameters based on the characteristics of graphene water-based slurries, substrate types, and application requirements. This precisely addresses challenges such as agglomeration, sheet damage, and unstable dispersion, ensuring customers achieve optimal coating results.

With the rapid development of graphene industrialization technology, the application scenarios for graphene water-based slurries continue to expand, creating an increasingly urgent demand for precision spraying equipment. Cheersonic ultrasonic spraying machines address industry pain points with advanced technology. Leveraging professional R&D capabilities and comprehensive technical support, they facilitate the industrialization of graphene water-based slurries, providing core equipment support for technological upgrades in fields such as corrosion protection, new energy, electronics, and composite materials. This demonstrates Cheersonic industry advantages in ultrasonic nano-equipment, providing customers with efficient, reliable, and customized spraying solutions.

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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