Wafer‐Scale Vertically Aligned Carbon Nanotubes Locked by In Situ Hydrogelation toward Strengthening Static and Dynamic Compressive Responses. Issue 6 (18th April 2018)

• Record Type: Journal Article
• Authors: Jing, Lin; Li, Hongling; Tay, Roland Yingjie; Lin, Jinjun; Tsang, Siu Hon; Teo, Edwin Hang Tong; Tok, Alfred Iing Yoong
• Is Part Of: Macromolecular materials and engineering. Volume 303:Issue 6(2018)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2018-04-18
• Subjects: composite hydrogels -- compressive mechanical properties -- dynamic mechanical analysis -- poly(vinyl alcohol) -- vertically aligned carbon nanotubes; Plastics -- Periodicals; Polymers -- Periodicals; Polymerization -- Periodicals; 547.705
• DOI: 10.1002/mame.201800024
• Languages: English
• ISSNs: 1438-7492

Abstract

Abstract: 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. Abstract : Wafer‐scale vertically aligned carbon nanotube/poly(vinyl alcohol) (VACNT/PVA) hydrogels are fabricated by an in situ hydrogelation approach. The well‐retained uniform distribution and orientation of the CNTs contribute to improvements of up to 25.2‐ and 9.0‐fold in compressive strength and loss modulus of the VACNT/PVA hydrogels, respectively, which hold great promises for multifunctional applications.