Temperature resistance of polyimide films and tapes
Clients frequently ask us what the temperature obstruction is of our polyimide tapes and movies. In spite of the fact that this is an ordinary inquiry to pose, it’s not as easy to reply. Temperature obstruction of any item is comprised of the temperature opposition of every one of its parts. Indeed, even the idea of “temperature opposition” leaves a great deal not entirely clear. So to address the topic of temperature obstruction of polyimide tapes, we need to answer one by one.
How would we characterize the temperature opposition of polyimide tapes?
At the point when a polyimide tape is presented to higher temperatures, two things occur. The first is that the polyimide backing itself gets hotter and the second is that glue strength corrupts. On the off chance that your application requires your polyimide tape to have high grip at certain higher temperatures, at that point this is the manner by which you ought to characterize the upper working temperature. On the off chance that once the tape is applied to the item, the glue strength is not, at this point significant, however the polyimide film itself isn’t permitted to consume, at that point this should be your meaning of polyimide tape temperature opposition.
What is the temperature opposition of every component of the polyimide tape?
The polyimide filmitself can be presented to temperatures up to 400°C with no danger of consuming or mechanical corruption. The cement layer appended to the polyimide tape is regularly either acrylic or silicone. Acrylic begins to lose a lot of its glue strength above 100°C, though silicone glue begins to lose quite a bit of its glue strength above 260°C.
In the event that your application is with the end goal that the part can be presented to these temperatures for just brief timeframes (state 3–10 minutes), at that point the inquiry is whether the tape itself really observes these temperatures. Presentation to high temperatures doesn’t mean essentially that the polyimide tape itself will get that hot, and once the warmth is eliminated, at that point a large part of the attachment loss of the glue is recaptured.
Obviously, you should test for yourself if the polyimide tape meets your particular temperature necessities, yet ideally this article gives you the certainty you need to test it for yourself.
Visit caplinq.com to study both our Polyimide films without glue, or our Polyimide tapes with acrylic or silicone cement. You can likewise reach us in the event that you have further inquiries on the temperature obstruction of polyimide tapes and movies.