Characteristics and Applications of PET Graphene Protective Film

The PET graphene protective film used in electronic die-cutting products has multiple excellent characteristics and is widely used in the high-end electronic manufacturing field. This film material is based on graphene as the core functional layer, which not only has conductivity and thermal conductivity similar to metals, but also has the flexibility and plasticity of polymer materials. At the same time, it exhibits good chemical stability, thermal stability, and surface adhesion properties, and has been widely used in multiple industries such as electronics, communications, and aerospace.

This protective film is mainly used for shock absorption and heat dissipation management inside electronic products, and has the following core advantages:

– High purity: The number of graphene layers is controlled within 5, with low impurity content and stable performance.
– High density: processed by precision pressing technology, the film structure is compact, significantly improving thermal conductivity and heat dissipation efficiency.

The main features of the product include:

– Long lasting and stable viscosity, no residual adhesive after peeling, smooth adhesive surface, suitable for high-precision die-cutting processing;
– High transparency and scratch resistance, suitable for protecting screens and surfaces of various electronic products;
– Easy to apply and peel off, supports automated assembly, helps improve yield and production efficiency;
– Good die-cutting adaptability to meet the requirements of complex shapes and fine craftsmanship in electronic manufacturing.

Typical application scenarios include:

– Electromagnetic shielding: used for electronic products with communication functions such as mobile phones, computers, navigation devices, etc;
– Anti electromagnetic interference: suitable for devices such as televisions, printers, scanners, etc. that are susceptible to signal interference;
– Thermal conduction and heat dissipation: covering components that require efficient thermal conduction in various electronic and electrical devices, such as chips, motherboards, etc;
– Temporary protection of graphene heat sinks during die-cutting processing, including heat dissipation modules in satellite circuits, LED lighting fixtures, mobile phone/computer components, medical equipment, and laser equipment;
– The protective use in the manufacturing process of lithium batteries is commonly found in new energy vehicles, household appliances, consumer electronics, and public lighting equipment;
– Surface protection for various electronic components, such as display screens, LCD panels, etc.

In addition, the protective film also has excellent high temperature resistance and adhesion performance, suitable for high-end packaging processes such as EMC resin packaging, protection during PCB and FPC gold plating processes, and fixed use in wave soldering processes.

Its prominent features include:

– Excellent heat resistance and flatness, can be divided into strips according to customer needs;
– Cutting edges neatly without burrs, some models are suitable for temporary fixation, shielding, and component transportation protection in high-temperature environments;
– Provide two adhesive systems, acrylic and silicone, to meet different temperature resistance and application requirements;
– After testing, it showed good adhesion, maintaining stability even under the conditions of a 2kg pressure roller back and forth speed of 5mm/s and a 180 ° peeling speed of 30mm/minute on a SUS plate.

The main applications include:

– Used as a carrier film to support thin layer materials and ensure their integrity during transportation;
– Temporary fixation in high-temperature processes;
– Shielding protection in packaging process;
– Surface protection of optical components such as CCD glass;
– Isolation materials used to prevent resin overflow in semiconductor packaging and electronic component molding.

In the manufacturing process of PET graphene protective film, ultrasonic spraying technology, as an advanced coating process, is increasingly being valued by the industry. This technology evenly atomizes adhesives or functional coatings into micrometer sized particles through high-frequency vibration, and accurately sprays them onto the surface of the substrate. It not only significantly improves the uniformity and consistency of the film coating, but also effectively avoids common phenomena such as clumping and orange peel in traditional coating methods. This process also has the advantages of high coating utilization rate, low environmental pollution, and suitability for large-area flexible substrates, especially meeting the production needs of high-precision electronic film materials, providing a reliable technical path for the preparation of high-performance graphene protective films.

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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