Novel Carbon Nanotube/Cellulose Composite Fibers As Multifunctional Materials

Haisong Qi*, Bjoern Schulz, Thomas Vad, Jianwen Liu, Edith Maeder, Gunnar Seide, Thomas Gries

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

80 Citations (Web of Science)

Abstract

Electroconductive fibers composed of cellulose and carbon nanotubes (CNTs) were spun using aqueous alkaline/urea solution. The microstructure and physical properties of the resulting fibers were investigated by scanning electron microscopy, Raman microscopy, wide-angle X-ray diffraction, tensile tests, and electrical resistance measurements. We found that these flexible composite fibers have sufficient mechanical properties and good electrical conductivity, with volume resistivities in the range of about 230-1 Ohm cm for 2-8 wt % CNT loading. The multifunctional sensing behavior of these fibers to tensile strain, temperature, environmental humidity, and liquid water was investigated comprehensively. The results show that these novel CNT/cellulose composite fibers have impressive multifunctional sensing abilities and are promising to be used as wearable electronics and for the design of various smart materials.

Original languageEnglish
Pages (from-to)22404-22412
Number of pages9
JournalACS Applied Materials & Interfaces
Volume7
Issue number40
DOIs
Publication statusPublished - 14 Oct 2015
Externally publishedYes

Keywords

  • cellulose
  • carbon nanotubes
  • composite fibers
  • multifunctional materials
  • sensors
  • MECHANICAL-PROPERTIES
  • WEARABLE ELECTRONICS
  • NANOTUBE NETWORKS
  • SMART TEXTILES
  • CELLULOSE
  • NANOCOMPOSITES
  • ORIENTATION
  • POLYCARBONATE
  • TRANSPORT
  • POLYMERS

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