Search

Method to Create Actionable Sheet Defect Data Between a Tissue Machine and Converting Line, TAPPICon22

Directional Testing of Paperboard • Using Refined Methods to Revisit Out of Plane Properties, TAPPICon22

The 4evergreen Journey Towards Perfecting Circularity, TAPPICon22

Every fibre counts!, TAPPICon22

Upgrading of recycled pulp quality by fractionation and selective refining, TAPPICon22

DATA ANALYTICS: ADVANCED ANALYTICS CAPABILITY FOR ASSESSING AND OPTIMIZING MULTI-STATE PRODUCTION PROCESSES, TAPPICon22

PEERS 2023 Poster Session: a competition for students and young professionals, TAPPI Journal April 2023

ABTRACT: Originating in the field of scientific research and academia, poster sessions at conferences may date back to the mid-20th century, although the origins aren’t quite clear. Some sources have said as early as the 1950s and others later, while the term “poster session” itself may not have been coined until the 1975 American Physics Conference. The original concept behind poster sessions was to provide a platform for researchers to share their work in a more visual and interactive format as compared to the traditional long-form oral presentation.

Totally chlorine-free peracetic acid pulping for nanocellulose isolation from hemp and poplar, TAPPI Journal August 2023

ABSTRACT: Nanocellulose is a promising and sustainable feedstock for developing advanced and functional materials. However, the characteristics of nanocellulose, such as crystallinity, surface energy, and aspect ratio, can vary depending on biomass source and pretreatment methods, leading to variable performance of the nanocellulose-based materials. In this study, cellulose nanocrystals (CNCs) were isolated from hemp and poplar using totally chlorine free (TCF) peracetic acid and sodium chlorite delignification and bleaching pretreatments to probe the influences of biomass source and treatment methods on the isolation and characteristics of CNCs. Our results showed that hemp and poplar were almost completely delignified by peracetic acid treatment, whereas sodium chlorite treatment left 5%•6% lignin in the pulp. The yields of CNCs from raw hemp and poplar biomass ranged from 9.8% to 21.9% and 10.9% to 28.3%, respectively, depending on the treatment methods. The dimensions of CNCs from TCF-treated biomass generally maintained a larger width and aspect ratio than those from sodium chlorite-treated biomass. The poplar-derived CNCs exhibited slightly higher crystallinity of 53%•58% than hemp-derived CNCs of 49%•54%. The zeta potential of the CNCs, ranging from -20.1 mV to -31.1 mV, ensured a well-dispersed aqueous solution. The surface energy (dispersive energy of 40•80 mJ/m2 and specific energy of 2•10 mJ/m2), water interaction, and thermal stability of the CNCs were comparable, regardless of the biomass source and pretreatment methods. Our finding suggests that the TCF technique with peracetic acid treatment is a promising delignification and bleaching approach to obtain cellulose-rich pulps from herbaceous and hardwood biomass for nanocellulose isolation.

Editor's Note: The reality of renewables, TAPPI JOURNAL June

Editor's Note: The reality of renewables, TAPPI JOURNAL June 2010

Accelerating kraft pulping with hydroxyethylidene diphosphonic acid (HEDP), TAPPI JOURNAL June 2010

Accelerating kraft pulping with hydroxyethylidene diphosphonic acid (HEDP), TAPPI JOURNAL June 2010