PEN film vs. PI film

PEN film and polyimide film are both high temperature resistant films used in a variety of applications such as electronics, electrical engineering, automotive and aerospace. Although they are both resistant to high temperatures, there are some differences in terms of their properties and applications.

PEN film, also called polyethylene naphthalate film, is a thermoplastic material made from polyethylene naphthalate (PEN). It has high mechanical strength, good chemical resistance and high heat resistance. It can withstand temperatures up to 150 degrees Celsius and has excellent heat resistance. It is commonly used in the electronics and electrical engineering industries, particularly in applications that are exposed to high temperatures and chemical stress.

Polyimide film, also known by various brand names, is a thermoplastic material made from polyimide. It has very high heat resistance that can withstand temperatures up to 260 degrees Celsius and excellent chemical resistance. It also has very good electrical insulation ability and good mechanical strength. It is commonly used in the electronics, electrical engineering, aerospace and automotive industries, particularly in applications that are exposed to high temperatures and electrical stresses.

An important difference between PEN film and polyimide film is the maximum temperature they can withstand. PEN film has a maximum temperature of 150 degrees Celsius while polyimide film has a maximum temperature of 260 degrees Celsius. This makes the latter more suitable for applications exposed to high temperatures, such as in the aerospace and semiconductor industries.

Another important difference is flexibility. PEN film is stiffer and more brittle than polyimide film, which is more flexible and pliable. This can be beneficial for certain applications where the film needs to be bent or folded.

In terms of cost, PEN film is typically cheaper than polyimide film because it can be produced from cheaper raw materials and uses less energy. However, polyimide film is more expensive as it has higher mechanical and electrical properties and is used in specialized applications.

Overall are PEN film and polyimide film both high temperature resistant films used in a variety of applications. While both share similar properties, there are also important differences in maximum temperature, flexibility and cost that should be considered when choosing the right material. It is important to carefully analyze the needs of the application and select the material that is best suited to meet the needs.