Electrospun cellulose nanocrystals/poly(methyl methacrylate) composite nanofibers: Morphology, thermal and mechanical properties

Tutkimustuotos: Lehtiartikkelivertaisarvioitu

Tutkijat

  • Xiaohui Ni
  • Wanli Cheng
  • Siqi Huan

  • Dong Wang
  • Guangping Han

Organisaatiot

  • Northeast Forestry University

Kuvaus

An electrospinning process was utilized to fabricate composite nanofibers of poly(methyl methacrylate) (PMMA) reinforced with cellulose nanocrystals (CNCs). The effect of environmental relative humidity on the microstructure of CNC/PMMA nanofibers was investigated. Results showed that fiber surfaces of CNC/PMMA appeared smooth. Fibers had gradually decreasing diameters and lower diameter variations as CNC loading increased. The thermal property of CNC/PMMA nanofibers was also enhanced due to hydrogen bonding between PMMA molecular chains and CNC nanoparticles. Compared to pure PMMA fibers, the storage modulus and tensile strength of composite nanofibers were pronouncedly improved. By increasing relative humidity of the electrospinning environment, these nanofibers showed prominent nanoporous surfaces while the surface roughness and porosity of CNC/PMMA nanofibers increased. Furthermore, CNCs were critical to accelerating the evolution of pores and increasing surface roughness. Our findings can provide useful guidelines for the fabrication of nanofibers with desired properties and pore structure by electrospinning.

Yksityiskohdat

AlkuperäiskieliEnglanti
Sivut29-37
Sivumäärä9
JulkaisuCarbohydrate Polymers
Vuosikerta206
TilaJulkaistu - 15 helmikuuta 2019
OKM-julkaisutyyppiA1 Julkaistu artikkeli, soviteltu

ID: 29691332