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Polyimide Film | Kapton Film

The polyimide film is a clear, slightly golden film, which has a smooth, flat surface without bubbles. Such exceptional mechanical properties and electrical characteristics, high-temperature resistance, dielectric strength, and chemical inertness are exhibited. This adaptable material is commonplace in the electronics industry, aerospace applications, and medicine instruments, as well as other sectors.

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kapton film

Kapton Film Details

polyimide film
Kapton Tape
polyimide tape

(H) Polyimide Films & Technical Performance

Index NameunitH FilmH Film
Standard Thicknessµm20/25/30/40/50/75100/125/150/175
Widthmm6-10406-960
Lengthm1000+5/500+5300+5/200+5
Tensile StrengthMpa≥140≥120
Elongation at Break%≥40≥60
Dielectric StrengthMV/m≥150≥120
Surface ResistanceΩ1.0×10¹³1.0×10¹³
Volume ResistivityΩ·cm1.0×10¹⁵1.0×10¹⁵
Dielectric Constant10⁶Hz3~43~4
Dissipation Factor10⁶Hz1.0×10⁻³1.0×10⁻³

Polyimide Films Application (H)

  • Insulation composite materials:

were being utilized to improve the insulating ability of electrical equipment.Wire wrapping provides another layer of protection for wires, enhancing the high temperature and wear properties of the cables.

  • High-temperature resistant pressure-sensitive tape:

Applied for welding and joining in high-temperature areas.

  • Electronic and electrical auxiliary materials:

The applications above definitely include many auxiliary applications in different branches of industry and electronics.

Shaft core material:

Paper or plastic.

Shaft core specification:

Diameter which is about 76mm (or 3 inches).

Packing method:

The inner layer must also be protected with a polyethylene bag to seal out additional agents of moisture or contamination.
The outer layer most often, is a carton or plywood box for risk-free transportation and storage.

Storage requirements:

No contamination with water or comedogenic substances and keep wrapping.
In a pack under the abovementioned conditions, it is safe for consumption for up to two years.

Certification

UL certification: The film is approved at the UL safety standard in the USA, bearing the UL number E241309. 

 

(F) Polyimide Films & Technical Performance

Index NameunitFH FilmFHF Film
Standard Thicknessµm38/ 50/ 63/ 75/ 10050/ 75/ 125
Widthmm6-10006-520
Lengthm≥300≥300
Tensile StrengthMpa≥90≥80
Elongation at Break%≥40≥40
Dielectric StrengthMV/m≥120≥120
Peel StrengthN/cm≥2.3≥2.3
Surface ResistanceΩ1.0×10¹³1.0×10¹³
Volume ResistivityΩ·cm1.0×10¹⁵1.0×10¹⁵
Dielectric Constant10⁶Hz3~43~4
Dissipation Factor10⁶Hz1.0×10⁻³1.0×10⁻³

Polyimide Films Application (F)

The F-type film is a high-performance material, mainly used in electromagnetic wire, high-temperature resistant wire, and polyimide film industry.

  • Electromagnetic wire production:

utilized for the insulation layer to enhance the high-temperature performance, electrical performance, and mechanical performance of the wire.

  • High-temperature resistant wire:

offers a highly efficient protective layer of the wire since it is very reliable in harsh temperature environments.

  • Heat-sealed polyimide film:

It can be processed immediately with other materials through heat-sealing technology and applies to various engineering and electronic application contexts.

Packaging and storage

  • Core material: paper or plastic.
  • Core specification: 76mm (3 inches).

Packaging method:

  • Inner layer:

polyethylene bag sealed with the intention of making sure that upon delivery the product was not affected by moisture or pollution.

  • Outer layer:

placed in a carton or a plywood box to ease transport and storage.

Splicing method:

Heat-sealed splicing is utilized to improve the connection of the Polyimide film with very high reliability and uniformity.

Storage requirements:

Polyimide film is no installation process; the product just needs to be stored in a dry and sealed environment.
The shelf life of the product is two years within which they must be used.

Certification

UL certification: We got US UL certification, certification number E241309. 

 

Polyimide Film Performance Advantages

  • High Thermal Stability:

Polyimide films offer exceptional operational stability at extremely high temperatures, reaching approximately 500°C. Additionally, the film's mechanical properties, as explained by Yaksh, remain intact and do not degrade even at these elevated temperatures.

  • Electrical Insulation:

Kapton Film possess excellent electrical resistance characteristics, making them ideal for shielding sensitive electrical components from electrical noise and voltage stress.

  • Exhibit excellent chemical resistance

As kapton film do not swell or degrade when exposed to various chemicals and solvents. 

  • Mechanical Strength:

Kapton Film exhibit exceptional tensile strength and flexibility, which are desirable characteristics for applications in areas likely to experience mechanical stress, such as flexible printed circuits and the medical industry.

  • Low dielectric constant 

Kapton Film is recognized as one of its advantages in high-frequency applications, particularly in the production of digital isolators and other components.

  • UV Resistance:

Kapton Film do not degrade from ultraviolet radiation; therefore, they can be used in areas exposed to sunlight.

  • Versatility:

Polyimide film can be produced in various thicknesses and shapes, tailored to the intended use of the end product, such as insulating tapes or flexible circuits.

  • Lightweight:

Polyimide films are lightweight, making them ideal for applications in the aerospace and automotive industries, where minimizing weight is a top priority.

  • Biocompatibility:

Certain polyimide formulations exhibit low bioactivity, making them suitable for applications in implantation and surgical procedures.

  • Environmental Compliance:

Polyimide films are environmentally friendly and can be manufactured to meet environmental regulations, such as ROHS compliance. These films serve various functions and can be disposed of safely.

 

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