Precision Coating Technology for BNNT and Ceramic Fillers

Ultrasonic Spray Coating System | Precision Coating Technology for BNNT and Ceramic Fillers

In the field of advanced nanomaterial modification and precision surface treatment, the coating process of ceramic fillers and boron nitride nanotubes (BNNT) is a key technology to optimize the comprehensive performance of composite materials. Traditional coating methods including dipping, spin coating and high-pressure spraying have obvious technical limitations. These conventional processes often cause nanoparticle agglomeration, uneven coating thickness, high material waste and poor film compactness, which cannot meet the stringent precision requirements of high-end thermal conductive materials, electronic insulating components and advanced ceramic composite products. As a high-precision surface treatment equipment, the ultrasonic spray coating system has become the preferred solution for BNNT and ceramic particle coating due to its low-loss, uniform and controllable coating characteristics.

The ultrasonic spray coating system operates based on high-frequency ultrasonic vibration technology. It converts pre-treated suspension liquids containing ceramic particles and BNNT into uniform micron-scale fine droplets through ultrasonic atomization, without high-pressure impact that damages nanostructures. Under the guidance of stable and controllable airflow, the fine droplets are uniformly deposited on the substrate surface to form dense, pinhole-free and thickness-adjustable functional coatings. Different from traditional high-pressure spraying, ultrasonic atomization realizes material dispersion through physical vibration, which fundamentally avoids the agglomeration of BNNT and ultra-fine ceramic fillers, and completely preserves the intrinsic thermal, electrical and mechanical properties of nanomaterials.

This system is professionally optimized for the structural characteristics and coating requirements of BNNT and ceramic particles. BNNT, as a typical one-dimensional ceramic nanomaterial, has excellent thermal conductivity, electrical insulation and mechanical strength, but its tubular structure is prone to agglomeration during traditional processing. The ultrasonic spray technology can wrap a uniform functional layer on a single BNNT tube, effectively improving the compatibility between BNNT and matrix materials. For micro and nano ceramic fillers with different particle sizes and viscosities, the system can adjust core parameters such as vibration frequency, atomization flow rate and spraying trajectory to achieve customized uniform coating, significantly enhancing the wear resistance, heat insulation and dielectric properties of ceramic composite materials.

In industrial practical applications, the ultrasonic spray coating system shows outstanding advantages in production efficiency and product consistency. Its material utilization rate exceeds 90%, far higher than the 70% or lower rate of traditional processes, greatly reducing the production cost of high-value nanomaterials. The automated precision spraying mode eliminates manual operation errors, ensuring consistent coating thickness and uniformity in mass production. In addition, the whole coating process is carried out at low temperature and normal pressure, which will not damage the micro-nano structure and performance of BNNT and ceramic fillers, making it suitable for processing temperature-sensitive advanced materials.

With the rapid development of new energy, electronic information and advanced ceramic industries, the demand for high-performance modified ceramic nanomaterials is continuously increasing. The ultrasonic spray coating system provides a reliable, efficient and precise technical path for BNNT and ceramic filler surface modification. It has become an indispensable core equipment in the field of advanced material surface treatment, and will further promote the industrialization and high-end development of functional ceramic composite materials.

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.

If you have any technical questions, customization demands, or procurement inquiries about ultrasonic atomization nozzles, feel free to contact our professional sales and technical team for detailed parameters, customized solutions, and industry application support.
Email: market2@cheersonic.com