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Wafer‐Scale Vertically Aligned Carbon Nanotubes Locked by In Situ Hydrogelation toward Strengthening Static and Dynamic Compressive Responses
Author(s) -
Jing Lin,
Li Hongling,
Tay Roland Yingjie,
Lin Jinjun,
Tsang Siu Hon,
Teo Edwin Hang Tong,
Tok Alfred Iing Yoong
Publication year - 2018
Publication title -
macromolecular materials and engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.913
H-Index - 96
eISSN - 1439-2054
pISSN - 1438-7492
DOI - 10.1002/mame.201800024
Subject(s) - materials science , self healing hydrogels , carbon nanotube , vinyl alcohol , wafer , composite number , composite material , in situ , fabrication , compressive strength , nanotechnology , polymer , polymer chemistry , medicine , physics , alternative medicine , pathology , meteorology
Wafer‐scale vertically aligned carbon nanotube/poly(vinyl alcohol) (VACNT/PVA) hydrogels are fabricated by infiltration of PVA among VACNTs and subsequent in situ hydrogelation. Owing to the homogeneous PVA infiltration, uniform distribution and orientation of the carbon nanotubes (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.