How does velcro lose its adhesiveness?
In: Engineering
Velcro works by having a bunch of teeny tiny hooks hook around a bunch of teeny tiny loops, so the two surfaces “stick” together.
With extended use, the repeated attaching/detaching of the loops and hooks causes the hoops to stretch and break, so the hooks can’t get a very good grip on them anymore. When this happens the Velcro loses its “sticky” property.
Also, annoying things like dust and lint can gather between the components and reduce their ability to interact.
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