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TechLink: Inside Tappi Journal

TAPPI JOURNAL Summaries, Paper360º September/October 2014

Over the Wire: AROUND the industry 14SEPPA10

Over the Wire, Paper360º September/October 2014

Prioritization for an r&t program: tools that help to achieve consensus, TAPPI JOURNAL, July 2001, Vol. 84(7)

Prioritization for an r&t program: tools that help to achieve consensus, TAPPI JOURNAL, July 2001, Vol. 84(7)

TAPPI Journal Summaries, Paper360º January/February 2017

TAPPI Journal Summaries, Paper360º January/February 2017

TAPPI Journal Summaries, Paper360º January/February 2024

TAPPI Journal Summaries, Paper360º September/October 2019

TAPPI Journal Summaries, Paper360º September/October 2019

TAPPI Journal Summaries, Paper360º May/June 2018

TAPPI Journal Summaries, Paper360º May/June 2018

TAPPI Journal Summaries, Paper360º July/August 2020

TAPPI Journal Summaries, Paper360º July/August 2020

We’ve Got Good Chemistry: Innovations Papermakers Need to Know About, Paper360º March/April 2020

We’ve Got Good Chemistry: Innovations Papermakers Need to Know About, Paper360º March/April 2020

Characterizing rheological behavior and fluidization of highly refined furnishes, TAPPI Journal April 2024

ABSTRACT: In this work, highly refined softwood bleached kraft pulp (SWBKP) furnishes, referred to here as XFC, were studied from the perspective of fiber suspension handling in processing. The rheology of the furnishes was studied with a rotational rheometer using a non-standard flow geometry to understand the viscosity development at different consistencies and the impact of temperature. For fluidization analysis during pipe flow, two optical methods were implemented; namely, optical coherence tomography (OCT) and high-speed video (HSV) imaging. The OCT was used to determine the small-scale floc structures near the pipe wall where the shear stress is highest, and the HSV imaging was applied for observing flow instabilities and XFC suspension uniformity at the pipe scale. All these issues can be significant in deciding the minimum flow rate required for a process pipe to get sufficient fluidization of XFC suspensions.