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A highly stretchable natural rubber/buckypaper/natural rubber (NR/N-BP/NR) sandwich strain sensor with ultrahigh sensitivity by Mingshuai Fan; Lu Wu; Yunping Hu; Meijie Qu; Shuaitao Yang; Ping Tang; Lujun Pan; Hai Wang; Yuezhen Bin is a Materials Science article available to read on EtoBox.

What is A highly stretchable natural rubber/buckypaper/natural rubber (NR/N-BP/NR) sandwich strain sensor with ultrahigh sensitivity about?

Flexible strain sensors have received intensive attention owing to their wide application prospects in the fields of wearable, personal electronics, and intelligent robotic systems. But it is a huge challenge for them to possess high sensitivity, fast response, wide sensing range, and superior durability synergistically. In order to solve these issues, we prepared a new type of buckypaper with excellent mechanical properties (elongation at break of about 22%) and electrical conductivity (33 S/ cm) by filtering carbon nanotube (CNT) aqueous dispersion mixed with a small amount of natural rubber latex (NR), named natural rubber-buckypaper (N-BP). By taking advantage of the robust N-BP, an NR/N-BP/NR strain sensor was creatively constructed by sandwiching the N-BP with two NR layers using the casting-curing method. The NR/N-BP/NR sandwich strain sensor showed a very high gauge factor value ( 2280), ultrashort response time (21 ms), very large sensing range (500%), and satisfactory sensing stability (2000 cycles at 100% strain). As for practical application, this NR/N-BP/NR strain sensor could accurately capture large or subtle human body movements, such as limb joint movements and fac

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Author

Mingshuai Fan; Lu Wu; Yunping Hu; Meijie Qu; Shuaitao Yang; Ping Tang; Lujun Pan; Hai Wang; Yuezhen Bin

Publisher

Springer Science and Business Media LLC

Published

2021

Language

EN

Field

Materials Science (Physical Sciences)