Microfluidic fabrication of highly stretchable and fast electro-responsive graphene oxide/polyacrylamide/alginate hydrogel fibers

Li Peng, Yan Liu, Jiani Huang, Jiahao Li, Jinghua Gong, Jinghong Ma* (Corresponding Author)

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

14 Citations (Scopus)

Abstract

The practical application of electro-responsive hydrogels is limited due to the slow response rate and the poor mechanical property. The electro-response rate of hydrogels can be improved by forming hydrogel fiber and adding graphene oxide (GO). Meanwhile, the incorporation of GO can also enhance the mechanical properties of hydrogels. However, the highly stretchable and fast electro-responsive hydrogel fibers are rarely reported at present. In this paper, graphene oxide/polyacrylamide/sodium alginate hydrogel fibers were prepared by microfluidic spinning and free radical polymerization. The mechanical properties, swelling properties and electro-responsive behaviors of the nanocomposite hydrogel fibers were investigated. The results show the nanocomposite hydrogel fibers could be very stretchable by adjusting GO and N,N-methylenebisacrylamide (BIS) contents. Besides, compared with hydrogel rods, the hydrogel fibers with diameter in microscale exhibit much faster swelling rate and electro-response rate. The thinner the hydrogel fiber is, the faster the electro-response rate is. This suggests that the highly stretchable and fast electro-responsive hydrogel fibers take us closer to the application of artificial muscle actuators.

Original languageEnglish
Pages (from-to)335-341
Number of pages7
JournalEuropean polymer journal
Volume103
DOIs
Publication statusPublished - 1 Jun 2018

Keywords

  • UT-Hybrid-D
  • Mechanical property
  • Microfluidic spinning
  • Nanocomposite hydrogel fiber
  • Electro-response

Fingerprint Dive into the research topics of 'Microfluidic fabrication of highly stretchable and fast electro-responsive graphene oxide/polyacrylamide/alginate hydrogel fibers'. Together they form a unique fingerprint.

  • Cite this