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The mechanical latching memory of an adhesive tape

33 points by gnabgib

by kurthr

2 subcomments

If you're not aware 3M (and other companies) now sell electrically de-bondable tape. It's used in consumer device manufacture where it would otherwise be expensive (or dangerous) to remove an item for replacement like a lithium battery.
https://www.3m.com/3M/en_US/p/d/b5005605107/
Now a worn or damaged battery can be safely bonded down as it normally would with a PSA (pressure sensitive adhesive), but then after applying some 30V for a couple of minutes ions in the adhesive cause it to become easily and safely removable/repositionable.

by drewbeck

0 subcomment

This is so cool. The discussion section [0] does a good job of explaining where this fits in, scientifically, but all I can think of is spies sending messages encoded in a piece of scotch tape.
[0] - https://iopscience.iop.org/article/10.1088/1367-2630/ae4acc#...

by zombot

2 subcomments

So I got an Incident ID and some captcha mumbo jumbo for attempting to browse that site. Apparently they don't like visitors. Feeling generous today, I decided to not inconvenience them further.