RISE PFIWe offerAnalyses and equipmentStructural characterization
Structural characterization

Advanced depicting techniques and analysing tools for bio-based materials

RISE PFI has developed and applied advanced depicting techniques and analysing tools for 2D and 3D characterisation of a range of bio-based materials, including nanocellulose, biochar, fibre, paper and composite structures. Our characterization methods will facilitate improvements of the final products and a broader understanding of their properties.


analysing tools for bio-based materials
Selected equipment
  • Scanning electron microscopy
  • Ion milling system
  • Scanners and high-resolution cameras
  • Light microsocopy
  • Laser profilometry
  • Computerized image analysis

Selected methods

Fibre cross-sectional characteristics PFI-method
Fibre external fibrillation PFI-method
Fibre surface structures PFI-method


Paper structure
Wiremarks PFI-method
Dirt specks PFI-method
Optical formation PFI-method
Fibre orientation – Z-direction (splitting) PFI-method
Surface structure – filler spatial distribution. PFI-method


Paper cross-sectional analysis
Roughnes PFI-method
Filler distribution in the z-direction PFI-method
Density distribution PFI-method
Fines distribution PFI-method
Coating structures
Coating structure PFI-method
Surface structure PFI-method


Dimensional stability
Fluting PFI-method
Cockling PFI-method
Print quality


Cold-set print quality. PFI-method
Half tone dot quality PFI-method
Mottling PFI-method
Picking PFI-method
Ink coverage PFI-method
Whiskering PFI-method
Novel materials
Characterisation of nanocellulose PFI-method
Fibre-reinforced composite materials PFI-method

Structural characteriztion

RISE PFI is part of RISE - Research Institutes of Sweden

RISE PFI is and internationally acknowledged research institute within processes and products based on lignocellulose. RISE PFI´s focus areas are Fibre technology and fibre-based products, Biorefining and Bioenergy and Biopolymers and Biocomposites.



  • Høgskoleringen 6b
  • NO - 7491 Trondheim
  • firmapost@rise-pfi.no
  • +47 73 60 50 65