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Advanced Renewable Materials

The latest Advanced Renewable Materials focused events, news, educational resources, publications, standards and conference documents.

Journal articles
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Open Access
A novel predictive method for filler coflocculation with cellulose microfibrils, TAPPI Journal November 2019

ABSTRACT: Different strategies aimed at reducing the negative impact of fillers on paper strength have been the objective of many studies during the past few decades. Some new strategies have even been patented or commercialized, yet a complete study on the behavior of the filler flocs and their effect on retention, drainage, and formation has not been found in literature. This type of research on fillers is often limited by difficulties in simulating high levels of shear at laboratory scale similar to those at mill scale. To address this challenge, a combination of techniques was used to compare preflocculation (i.e., filler is flocculated before addition to the pulp) with coflocculation strategies (i.e., filler is mixed with a binder and flocculated before addition to the pulp). The effect on filler and fiber flocs size was studied in a pilot flow loop using focal beam reflectance measurement (FBRM) and image analysis. Flocs obtained with cationic polyacrylamide (CPAM) and benonite were shown to have similar shear resistance with both strategies, whereas cationic starch (CS) was clearly more advantageous when coflocculation strategy was used. The effect of flocculation strategy on drainage rate, STFI formation, ash retention, and standard strength properties was measured. Coflocculation of filler with CPAM plus bentonite or CS showed promising results and produced sheets with high strength but had a negative impact on wire dewatering, opening a door for further optimization.

Webinars
Biomaterials and Bioethanol from Lignocelluloses

Presented by Run-Cang Sun

Webinars
Grade Change Transition Performance and Troubleshooting

Presented by Tim Murphy

Webinars
Progress Of Nanocellulose And Its Application In China Webinar

Progress Of Nanocellulose And Its Application In China Webinar Nanocellulose and its application are widely studied in Chinese Universities, Institutes and Companies. Products of nanocellulose

Webinars
Circular Packaging Products from Polysaccharides

Circular Packaging Products from Polysaccharides There is a strong drive to discover and develop alternatives to conventional plastics that offer the ability to be manufactured and used in a circular

Webinars
How to Use Rheology to Characterize and Formulate Nanofiber Based Materials

Presenter: Yaman Boluk, University of Alberta

Webinars
High performance cement via cellulose nanocrystal addition

High performance cement via cellulose nanocrystal addition Presented by: Professor Jeffery Youngblood, Purdue University A brief review of cement and its chemistry will be presented so that current

Webinars
Nanocellulose based materials for barrier and antibacterial packages

This presentation provides an overview of the potential of nanocellulose (functionalized or not) in packaging materials like fibre-based materials or nanocomposites.

Webinars
HCl Gas: A Versatile Catalyst for Retrieving Nanocellulose and Sugars form Biomass

Identify the main benefits and challenges related to HCl gas hydrolysis of cellulosic fibers

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