What is the function of bidirectional polyimide film
Bidirectional polyimide film has multiple functions, mainly including the following aspects:
1. Flexible circuit board substrate: Due to its softness, good dimensional stability, good dielectric properties, and ability to withstand high temperatures and chemical treatments such as chemical corrosion and welding, it is suitable as a substrate for flexible printed circuit boards. It can be made i
Bidirectional polyimide film has multiple functions, mainly including the following aspects:
1. Flexible circuit board substrate: Due to its softness, good dimensional stability, good dielectric properties, and ability to withstand high temperatures and chemical treatments such as chemical corrosion and welding, it is suitable as a substrate for flexible printed circuit boards. It can be made into ribbon cables or flexible printed circuits with small volume, light weight, high reliability, high temperature resistance, and radiation resistance, and is widely used in microcircuits such as computers.
Insulation material: It has excellent electrical insulation performance, high and low temperature resistance, and mechanical properties, and can be used for a long time in the temperature range of -240 ℃ -260 ℃. It can be used as insulation material for wires, cables, motors and other electrical appliances, such as inter turn insulation for H-class and F-class motor winding, which can improve the wire slot filling rate, reduce the motor volume, and improve the motor reliability. It can also be used in electronic devices such as transformers, speakers, microphones, mobile phones, computers, etc.
2.In the aerospace field：biaxially oriented polyimide films and their composite thermal control materials can be applied to spacecraft, such as the Shenzhou 18 manned spacecraft which used related materials. It has achieved the localization of the entire process flow by solving problems such as molecular chain breakage and recrystallization behavior under controlled stretching conditions, providing guarantees for the thermal control and related functions of spacecraft.
3. In the automotive field: A flame-retardant thermosetting adhesive tape based on biaxially oriented polyimide film can enhance the bonding strength between plastic components and circuit substrates, and improve flame retardant performance. It is suitable for packaging and protection applications in automotive electronic systems, effectively ensuring the safety and reliability of automotive electronic systems.
4. In other fields: Transparent bidirectional polyimide films can be used as substrate materials for solar cell substrates, smart glasses substrates, next-generation display substrates, and other applications that utilize their transparency. They can also be used to manufacture parts that require transparency in high-temperature environments, such as automotive sensor covers, high-temperature transparent bags, and transparent windows for optical sensors. In addition, it is also applied in display devices such as touch panels and displays.
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