Current activities in measuring size distributions of Cellulose Nanomaterials
Date – 8/19/2020
Time – 8AM – 10AM
Lead Speaker – Linda Johnston
The webinar will present current activities in measuring particle size and size distributions of cellulose nanocrystals (CNC) and cellulose nanofibrils (CNF), highlighting the successes, the failures, the challenges, and future efforts that are needed for the development of standardized methods. The first half of the webinar will focus on the outcomes of a recent interlaboratory comparison (ILC) on CNC particle size measurements. The second half of the webinar will focus on the difficulties of measuring CNF features (e.g., fibril width, branching) that could be used to define/describe CNFs as particles. Recent efforts by the ISO/TC 6/TG 1 – “Cellulosic nanomaterials” working group to provide a framework for the characterization of CNF morphology will be highlighted. In particular, a survey has been developed which will be used to assess standardization needs and priorities for particle size measurements of cellulose micro/nanomaterials including CNF, CMF, MFC, and other fibrillar "nanocellulose" products. The results of the survey will be used to drive CNF/CMF standards development, similar to a 2018 survey by ISO/TC 6/TG 1 on general cellulose nanomaterial characterization requirements that was subsequently used to provide direction of current standards development for both CNCs and CNFs.
Past Webinars: (click on title to view webinar)
Transforming Cellulose Nanocrystals into Sustainable Products through Surface Engineering- Emily D. Cranston, McMaster University (29- November 2017)
Nanocellulose: The Road to Commercialization Opportunities and Recommendations for Researchers, Producers, and End Users-Jack Miller, Market-Intell LLC (13- November 2017)
High Performance Cement via Cellulose Nanocrystal Addition, Jeffery P. Youngblood, Purdue University (17- April 2017)
How to use Rheology to Characterize and Formulate Nanofiber Based Materials, Yaman Boluk, University of Alberta (9-November 2016)
Cellulose Nanomaterial Commercialization: an End-Users Perspective, Jack Miller, Market-Intell LLC (24-October 2016)
Cellulose Nanomaterial Production Technologies: An Overview & State of the Art, Dr. Junyong (JY) Zhu, USDA Forest Service, Forest Products Laboratory (7-September 2016)
Nanocellulose in the Formulation of Emulsions and Formulation-Composition Maps. Dr. Orlando J. Rojas, Alto University (14 April 2016).
Cellulose Nanomaterials: Measurement Needs Workshop Report and Potential Solutions. Dr. Jeffery Gilman, NIST (20-October 2015).
Responsive Cellulose Nanocrystal Composites. Dr. Johan Foster, Virginia Tech (17-September 2015)
Nanocellulose-based materials for barrier and antibacterial packages. Dr. Julien Bras, University of Grenoble (3 June 2015)
Roadmap for the Safe and Sustainable Commercialization of Nanocellulose. Jo Anne Shatkin, Vireo Advisors (27 February 2014)
Overview, Properties and Opportunities for Nanocellulose. Sean Ireland, Verso Paper Corp. (10 May 2013)
Processing of Nanocellulose Based Polymer Nanocomposites. Alain Dufresne, Grenoble Institute of Technology (8 November 2012)
- TAPPI member login is needed to view webinars