Carbon nanotube tape stays sticky in extreme temperatures

phys.org | 2/21/2019 | Staff
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In very hot or cold environments, conventional tape can lose its stickiness and leave behind an annoying residue. But while most people can avoid keeping taped items in a hot car or freezer, those living in extreme environments such as deserts and the Antarctic often can't avoid such conditions. Now, researchers reporting in ACS' journal Nano Letters say they have developed a new nanomaterial tape that can function over a wide temperature range.

In previous work, researchers have explored using nanomaterials, such as vertically aligned multi-walled carbon nanotubes (VA-MWNTs), to make better adhesive tapes. Although VA-MWNTs are stronger than conventional tapes at both high and low temperatures, the materials are relatively thick, and large amounts can't be made cost-effectively. Kai Liu, Xide Li, Wenhui Duan, Kaili Jiang and coworkers wondered if they could develop a new type of tape composed of superaligned carbon nanotube (SACNT) films. As their name suggests, SACNTs are nanotubes that are precisely aligned parallel to each other, capable of forming...
(Excerpt) Read more at: phys.org
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