What is Kapton HN?
Kapton® Type HN film is a tough, aromatic polyimide film, exhibiting an excellent balance of physical, chemical, and electrical properties over a wide temperature range. Kapton® has been successfully used in applications at temperatures as low as -452°F (-269°C) and as high as 752°F (400°C).
What is polyimide film used for?
Polyimide is used for medical tubing, e.g. vascular catheters, for its burst pressure resistance combined with flexibility and chemical resistance. The semiconductor industry uses polyimide as a high-temperature adhesive; it is also used as a mechanical stress buffer.
Who manufactures Kapton?
DuPont™ Kapton® polyimide films have set the industry standard for over 45 years in high performance, reliability and durability, with a unique combination of electrical, thermal, chemical and mechanical properties that withstand extreme temperature, vibration and other demanding environments.
What is dielectric constant for Kapton?
With a dielectric strength rating of 7700 V/mil for a . 001”-thick film, no other material can provide such protection in such a small space. When combined with an adhesive backing and die-cut to a specific size, Kapton® films can provide a perfect solution to any masking area requiring electrical insulation.
What is Kapton made from?
Kapton Tape is made from DuPont Kapton® HN general purpose film with silicon adhesive. It has been used in applications at temperatures as low as -269°C (-452°F) and as high as 260°C (500°F).
What is vespel used for?
Vespel is mostly used in aerospace, semiconductor, and transportation technology. It combines heat resistance, lubricity, dimensional stability, chemical resistance, and creep resistance, and can be used in hostile and extreme environmental conditions.
Why is polyimide so expensive?
The polyimide material and adhesive elements of high-temperature resistant labels are expensive so they should only be used when resisting these environments to maximise economy. Polyester labels are most common because they can be made with solvent acrylic adhesives and resist Isopropanol (IPA) cleaning solutions.
What is the difference between polyamide and polyimide?
The major difference between polyamide and polyimide is in their chemical structures; polyamide has the amide (-CONH-) linkages in their polymer backbone, while polyimide has imide group (-CO-N-OC-) in their polymer backbone.
What color is Kapton?
Electronics hobbyists can recognize Kapton on sight. The familiar rich amber color shows up inside so many devices, from the flexible PCBs that link a laptop’s display to its motherboard to the seemingly miraculous adhesive tape that can withstand soldering temperatures or line a 3D printer’s bed for better adhesion.
Is Kapton tape water resistant?
Kapton Tape, Thermal Polyimide Waterproof Adhesive Tape,Panel Protector High Temperature Heat Insulation Tape (Length : 30M, Width : 3mm)
What is the dielectric constant of Teflon?
2.1
Dielectric Constants at 20°C
| Material | Dielectric Constant |
|---|---|
| Polyethylene | 2.25 |
| Polyvinyl chloride | 3.18 |
| Teflon | 2.1 |
| Germanium | 16 |
Is vespel toxic?
Good industrial hygiene practices, as with all dusts, should include precautions to prevent inhalation of respirable particles. ADDITIONAL HEALTH EFFECTS Vespel(R) polyimide parts and shapes are not hazardous as shipped.