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Discrete Element Method to Model Tension and Bending for Single Layer 3-Dimension Systems with Bimodal and Pseudo-Full Particle Size Distributions of Spherical Particles, 2021 TAPPICon Live (21TAPL)

Discrete Element Method to Model Tension and Bending for Single Layer 3-Dimension Systems with Bimodal and Pseudo-Full Particle Size Distributions of Spherical Particles, 2021 TAPPICon Live (21TAPL)

Utilization of Kappa Measurement in the D-Stages of ECF-Bleaching, 1996 International Pulp Bleaching Conference Proceedings

Utilization of Kappa Measurement in the D-Stages of ECF-Bleaching, 1996 International Pulp Bleaching Conference Proceedings

Potassium Kraft Pulping: Possibility or Necessity, 1996 Minimum Effluent Mills Symposium Proceedings

Potassium Kraft Pulping: Possibility or Necessity, 1996 Minimum Effluent Mills Symposium Proceedings

Creative Problem Solving, 2000 Polymers, Laminations & Coatings Conference Proceedings

Creative Problem Solving, 2000 Polymers, Laminations & Coatings Conference Proceedings

Roller Technology for Extrusion-Reaching New Heights in Substrate Quality and Roller Longevity, 2001 Polymers Laminations & Coatings Conference Proceedings

Roller Technology for Extrusion-Reaching New Heights in Substrate Quality and Roller Longevity, 2001 Polymers Laminations & Coatings Conference Proceedings

Measurement and control of extensional viscosity in barrier coating dispersions, TAPPI Journal November 2023

ABSTRACT: This study aimed to understand the effect of various rheological additives on the extensional viscosity of barrier coating dispersions, as well as to understand the role extensional viscosity plays in stabilizing a liquid curtain. The apparent extensional viscosity was measured using two devices that create accelerating flows: a capillary viscometer and an orifice rheometer. Additives tested include several polyvinyl alcohols, a high molecular weight polyethylene oxide, and carboxymethylcellulose. Extensional viscosity plays a significant role in stabilizing a liquid curtain, as it slows down hole expansion and prevents impurities and disturbances from causing holes in the first place. Some of the additives could substantially increase the extensional viscosity of the dispersions without increasing the shear viscosity outside the typical range of processability for a curtain coater. Some of the additives exhibited coil-stretch transition, meaning they start increasing extensional viscosity above a certain extension rate. Polymers with low chain lengths exhibited finite extensibility, which indicates the polymer chain has fully extended and cannot provide further extensional viscosity, even though the extending force is increased. Polymeric additives with stiff or branched chains significantly raised shear viscosity without increasing extensional viscosity. Both methods could reliably measure extensional viscosity in curtain coating barrier dispersions.

SetPoint: That’s My Jam, November/December 2023 Paper360º

USING BLEACHING STAGE MODELS FOR BENCHMARKING HARDWOOD ECF BLEACH PLANTS, 2023 PEERS Conference

Evaluation of Thinning in Continuous Digesters with Fitness-for-Service Methods, 2023 PEERS Conference

Continuous Digester Process Safety Improvements • Stress Corrosion Cracking and Overpressure Protection Lessons Learned and Opportunities, 2023 PEERS Conference