Supply polyimide film gold film insulation yellow paper 0.008~0.25mm

厚度：

0.008~0.25mm

宽度：

10~1060mm

长度：

200~3000m

Polyimide film classification includes homophenylene polyimide film and biphenyl polyimide film. The former is the product trade name of DuPont Company in the United States. It is produced from <>pyromellitic dianhydride
and <>diphenyl ether
diamine. The latter is produced by Ube Kosan Co., Ltd. in Japan under the trade name of <>biphenyltetracarboxylic dianhydride
and diphenyl ether diamine (R type) or <>m-phenylenediamine
(type). .
Advantages of polyimide
()Excellent heat resistance. The decomposition temperature of <>polyimide
generally exceeds ℃ and sometimes even higher. It is one of the varieties with the highest <>thermal stability
among currently known organic polymers. This is mainly because the molecular chain Contains a large number of <>aromatic rings
.
()Excellent mechanical properties. The tensile strengths of unreinforced matrix materials are above. The tensile strength of <>
biphenyl
polyimide ( ). The <>elastic modulus
of <>polyimide fiber
can be second only to <>carbon fiber
.
()Good<>chemical stability
and resistance to moisture and heat. Polyimide materials are generally insoluble in organic solvents and are resistant to corrosion and hydrolysis. Changing the molecular design can produce varieties with different structures. Some varieties can withstand boiling at atmospheric pressure and ℃.
() Good radiation resistance. <>Polyimide film
still maintains % strength after &;r dose of radiation; some polyimide fibers retain % strength after &;rfast<>electron irradiation
.
()Good<>dielectric properties
. <>Dielectric constant
is less than. If fluorine atoms are introduced into the molecular chain, the dielectric constant can be reduced to about.<>Dielectric loss
is<>Dielectric strength
is to/< >Volume resistance
is -&;&;. Therefore, the synthesis of fluorine-containing polyimide materials is currently a popular research field.
The above performance is stable over a wide temperature range and frequency range. In addition, polyimide also has the characteristics of low temperature resistance, low expansion coefficient, flame retardancy and good biocompatibility. Polyimide's excellent comprehensive properties and synthetic chemical diversity can be widely used in a variety of fields.
Polyimide film (membrane) application industry
Known as the "golden film", <>polyimide film
has excellent performance and is widely used in space technology ,, grade motors, electrical insulation, (flexible<>Printed circuit board
),<>
<>Electric heating film
, B (<>Pressure sensitive tape
base material ), aerospace, aviation, computers, <>magnetic wires
, transformers, audio, mobile phones, computers, smelting, mining electronic components industry, automobiles, transportation, atomic energy industry and other electronic and electrical industries.