Wafer-scale vertically aligned carbon nanotubes locked by in situ hydrogelation toward strengthening static and dynamic compressive responses

Wafer‐scale vertically aligned carbon nanotube/poly(vinyl alcohol) (VACNT/PVA) hydrogels were fabricated by infiltration of PVA among VACNTs and subsequent in situ hydrogelation. Owing to the homogeneous PVA infiltration, uniform distribution and orientation of the CNTs are well retained, which in t...

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Bibliographic Details
Main Authors: Jing, Lin, Li, Hongling, Tay, Roland Yingjie, Lin, Jinjun, Tsang, Siu Hon, Teo, Edwin Hang Tong, Tok, Alfred Iing Yoong
Other Authors: School of Electrical and Electronic Engineering
Format: Article
Language:English
Published: 2019
Subjects:
Online Access:https://hdl.handle.net/10356/85868
http://hdl.handle.net/10220/48284
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Institution: Nanyang Technological University
Language: English
Description
Summary:Wafer‐scale vertically aligned carbon nanotube/poly(vinyl alcohol) (VACNT/PVA) hydrogels were fabricated by infiltration of PVA among VACNTs and subsequent in situ hydrogelation. Owing to the homogeneous PVA infiltration, uniform distribution and orientation of the CNTs are well retained, which in turn provide large CNT‐PVA interfaces throughout the resulting hydrogels. Compared to bare PVA hydrogels, such composite hydrogels perform significantly enhanced longitudinal compressive responses upon both static and dynamic loadings, achieving improvements of up to 25.2‐ and 9.0‐fold in strength and loss modulus, respectively. The novel scalable fabrication of VACNT/PVA hydrogels and their attractive performances hold great potential for a wide range of applications.