کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7889282 1509859 2018 24 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Strong linear-piezoresistive-response of carbon nanostructures reinforced hyperelastic polymer nanocomposites
ترجمه فارسی عنوان
نانوکامپوزیت های پلیمری پلی اورتان تقویت شده از نانوکامپوزیت های کربنی مقاوم به خطی-پیزوآرزسیونی قوی برخوردار است
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
چکیده انگلیسی
Here, we report highly strain-tolerant and sensitive strain sensors based on carbon nanostructures (CNS)-polydimethylsiloxane (PDMS) nanocomposites. CNS consist of clusters of aligned multiwall carbon-nanotubes (MWCNT) with high degree of entanglement and wall sharing between nanotubes. The unique features of CNS result in nanocomposites with very low electrical percolation threshold (0.05 wt% CNS), strong linear-piezoresistive-response up to 110% strain, and high sensitivity with gauge factor ranging from 8 to 47. We also present a simple analytical model for predicting resistivity evolution as a function of stretch considering incompressible hyperelastic behavior of CNS/PDMS nanocomposites. CNS/PDMS nanocomposites also show good hysteresis performance and stability up to 100 repetitive stretch/release cycles for 30% maximum strain. Tunable sensitivity and linear piezoresistivity coupled with high stretchability of CNS/PDMS nanocomposites demonstrated here suggest their potential for applications in wearable health and fitness monitoring devices.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composites Part A: Applied Science and Manufacturing - Volume 113, October 2018, Pages 141-149
نویسندگان
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