Polyimide Material Spray Coating
Ultrasonic spraying is an efficient process for preparing polyimide films. The core is to use ultrasonic vibration to atomize the polyimide precursor solution into micrometer sized droplets, which are then uniformly deposited on the substrate surface and subjected to high-temperature imidization to form a thin film. This process is particularly suitable for fields such as flexible electronics and semiconductors that require strict performance of thin films.
Excellent film-forming properties Uniform coating: Uniform coating coverage is achieved on both flat and complex 3D substrates. Even surfaces with complex shapes such as grooves, holes, and corners can achieve a uniform polyimide coating, ensuring consistent performance across all product components. For example, in the microelectronics field, spraying polyimide can form a uniform insulating layer on tiny devices to protect electronic components.
Controllable Thickness: The coating thickness can be precisely controlled, ranging from submicron levels to hundreds of microns, meeting the coating thickness requirements of various application scenarios. For example, in the aerospace industry, protective coatings on critical components require precise thickness control to achieve optimal protection.
Excellent Performance Retention: Stable Heat Resistance: Polyimide inherently exhibits excellent heat resistance, and the sprayed coating maintains excellent stability even in high-temperature environments, with long-term operating temperatures exceeding 250°C and short-term temperatures of 400°C or higher. This makes polyimide spray coatings suitable for components operating in high-temperature environments, such as engines and heat exchangers. Good Chemical Stability: It is highly resistant to acids, alkalis, and organic solvents, making it resistant to chemical corrosion and erosion. In equipment protection applications in the chemical and pharmaceutical industries, polyimide spray coatings effectively protect equipment surfaces from chemical damage.
Strong Mechanical Properties: The coating exhibits high strength, hardness, and wear resistance, effectively resisting impact, abrasion, and scratches, extending the lifespan of the coated object. For example, spraying a polyimide coating on the surface of mechanical parts can improve their wear resistance, reducing wear and failure.
High Process Flexibility: Applicable to a wide range of substrates, including metals, ceramics, glass, and plastics, polyimide spray coating technology offers broad applicability. This allows polyimide spray coating to be applied to a variety of materials, meeting the needs of diverse industries.
Easy to Coat Complex Shapes: Spray coating can easily achieve full coverage on complex shapes, regardless of the object’s shape. Compared to other coating methods, such as dipping and brushing, spraying is more suitable for coating complex surfaces. Combinability with other processes: The coating can be combined with other surface treatments, such as pre-treatment and post-treatment, to enhance the performance and quality of the coating. For example, pre-treatment of the substrate surface, such as cleaning and roughening, before spraying can enhance coating adhesion; post-treatment, such as curing and annealing, after spraying can further enhance coating performance.
Environmentally friendly and efficient: The spraying process uses virtually no organic solvents, reducing volatilization and emissions, and minimizing environmental pollution. Furthermore, polyimide is a green and recyclable material, meeting environmental standards.
High production efficiency: The spraying process can be automated, improving production efficiency and reducing labor costs. Furthermore, the spraying equipment is relatively simple to operate and easy to master and control, enabling rapid large-scale production.
At present, this technology has been widely used in the preparation of polyimide coatings for flexible display substrates, lithium-ion battery separators, and chip passivation layers, and is one of the key processes in high-end electronic manufacturing.
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
