Banner for LabNotes
From Lab Notes
Contact Information
Forest Products Laboratory
One Gifford Pinchot Drive
Madison, WI 53726-2398
Phone: (608) 231-9200
Fax: (608) 231-9592


You are here: FPL Home  / Information Products & Services  / Publications

Requested Product

Title: Morphological development of cellulose fibrils of a bleached eucalyptus pulp by mechanical fibrillation

Source: Cellulose (2012) 19:1631-1643.

Author(s)Wang, Q.Q.; Zhu, J.Y.; Gleisner, R.; Kuster, T.A.; Baxa, U.; McNeil, S.E.

Publication Year: 2012  View PDF »

Category: Journal Articles
Associated Research Project(s):   FPL-4709-2A

Abstract: This study reports the production of cellulose nanofibrils (CNF) from a bleached eucalyptus pulp using a commercial stone grinder. Scanning electronic microscopy and transmission electronic microscopy imaging were used to reveal morphological development of CNF at micro and nano scales, respectively. Two major structures were identified (1) highly kinked, naturally helical, and untwisted fibrils that serve as backbones of CNF networks, and (2) entangled, less distinctively kinked (or curled) and twisted “soft looking” nanofibrils. These two major structures appeared in different features of CNF network such as “trees”, “net”, “flower”, single fibril, etc. Prolonged fibrillation can break the nanofibrils into nanowhiskers from the untwisted fibrils with high crystallinity. Energy input for mechanical fibrillation is on the order of 5-30 kWh/kg. The gradual reduction in network size of CNF with time may be used to fractionate CNF.

Keywords: cellulose nanofibrils (CNF), Morphology, Mechanical Fibrillation/grinding, Fiber/Fibril network, TEM imaging, Nanowhisker

Publication Review Process: Formally Refereed

File size: 3,585 kb(s)

Date posted: 09/05/2012

This publication is also viewable on Treesearch:  view
RITS Product ID: 61135
Current FPL Scientist associated with this product
Zhu, JunYong
Research General Engineer

Additional items that might interest you
View the video celebrating FPL's 100 years of public service in 2010, from the producers of the Greatest Good....view

Research Highlights from FPL....view

Termite Eradication: A search for the Holy Grail.... view

Moisture Management in Residential Construction Series videos...view

Wood Floor Systems in Residential Construction Series videos....view
- FPL's Mission and Strategic Plan -

FPL's mission is to identify and conduct innovative wood and fiber utilization research that contributes to conservation and productivity of the forest resource, thereby sustaining forests, the economy, and quality of life. ... ..more »

- FPL Research Emphasis Areas -
Advanced Composites

As an integral part of the FPL mission, we improve the long-term sustainability of our Nation's forests by creating valuable composite products from biobased materials ... ..more »

Advanced Structures

The FPL has been in the forefront of wood-frame housing research since 1910 and has long been recognized as a world leader in such housing-related areas as engineered wood ... ..more »

Forest Biorefinery

We all know the compelling reasons that the United States needs to reduce its dependence on fossil fuels. Historically, the greatest increases in energy demand have been for transportation fuels ... ..more »


A leader in wood products research for over a century, the FPL is positioning itself to become the lead Federal research facility for the application of nanotechnology in forest products ... more »

Woody Biomass Utilization

Forests in the United States contain a substantial amount of small-diameter, overstocked, and underutilized material.FPL research projects are exploring the potential of the small-diameter ... ..more »