For many people the mention of polyimide film is met with a blank look. Yet it might surprise these people to find out how extensively its used in the modern world today. Thanks to the properties possessed by this material it has proved to be extremely useful. They are lightweight, very flexible and resistant to both heat and chemicals.
A couple of these properties make it an ideal material for use with modern electronics. A common example that illustrates this point is the flat flexible cable which connects the body of a laptop to the screen. It is easy to understand the need for flexibility as a laptop is opened and closed on such a regular basis.
Should you get the opportunity to see a dismantled laptop computer, the cable that has just been mentioned will be easy to identify. It will be of an amber color and the metal tracks will be clearly seen. The amber colored sheeting is this versatile material.
The metallic tracks will be firmly fixed to the sheet by an adhesive. Due to the insulating properties of the sheeting its even possible to have tracks running either side of the sheet, but further insulation will be required to prevent any possible shorting between the tracks and the case. Other uses in the electronics world also includes masking areas of circuit boards, also providing insulation to such devices as capacitors and transistors.
However its the resistance to heat that is often the most important factor when industries decide to use this material. With this in mind manufacturers often elect to use this material in areas which have high operating temperatures. Out of interest this material will cope with temperatures in the region of 800F.
Routinely any material which becomes affected by heat will either distort or degrade. It will either shrink or stretch. Either effect will cause the affected material to become unfit for the original purpose. Its therefore a real plus when you note that this material suffers virtually no obvious effects when subjected to the same treatment. In fact the only thing that people might notice will be a slight darkening.
Initially this material was mainly used within the military and defense based industries. As it as become more widely available it has been used in many more applications. These can range from modern electronics right up to the space industry.
Take for example engines, these will generate high temperatures whilst in use. These engines can be in the automotive industry, the field of aviation and spaceflight. As this film does not transfer heat from one side of this film to the other, it is ideal to protect various cables and similar items. As such it will prevent the hot metal of the engines damaging the normal insulation of these cables and possibly leading to greater problems.
Polyimide film is extremely durable and hard wearing. Therefore there will be no likelihood that this protective layer will require constant replacement, which in turn means less expense. As a result modern industries are always searching for new ways in which to make use of this versatile material.
A couple of these properties make it an ideal material for use with modern electronics. A common example that illustrates this point is the flat flexible cable which connects the body of a laptop to the screen. It is easy to understand the need for flexibility as a laptop is opened and closed on such a regular basis.
Should you get the opportunity to see a dismantled laptop computer, the cable that has just been mentioned will be easy to identify. It will be of an amber color and the metal tracks will be clearly seen. The amber colored sheeting is this versatile material.
The metallic tracks will be firmly fixed to the sheet by an adhesive. Due to the insulating properties of the sheeting its even possible to have tracks running either side of the sheet, but further insulation will be required to prevent any possible shorting between the tracks and the case. Other uses in the electronics world also includes masking areas of circuit boards, also providing insulation to such devices as capacitors and transistors.
However its the resistance to heat that is often the most important factor when industries decide to use this material. With this in mind manufacturers often elect to use this material in areas which have high operating temperatures. Out of interest this material will cope with temperatures in the region of 800F.
Routinely any material which becomes affected by heat will either distort or degrade. It will either shrink or stretch. Either effect will cause the affected material to become unfit for the original purpose. Its therefore a real plus when you note that this material suffers virtually no obvious effects when subjected to the same treatment. In fact the only thing that people might notice will be a slight darkening.
Initially this material was mainly used within the military and defense based industries. As it as become more widely available it has been used in many more applications. These can range from modern electronics right up to the space industry.
Take for example engines, these will generate high temperatures whilst in use. These engines can be in the automotive industry, the field of aviation and spaceflight. As this film does not transfer heat from one side of this film to the other, it is ideal to protect various cables and similar items. As such it will prevent the hot metal of the engines damaging the normal insulation of these cables and possibly leading to greater problems.
Polyimide film is extremely durable and hard wearing. Therefore there will be no likelihood that this protective layer will require constant replacement, which in turn means less expense. As a result modern industries are always searching for new ways in which to make use of this versatile material.
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