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Journal articles
Open Access
A study of in-plane and z-direction strength of coating layers with varying latex content, TAPPI JOURNAL December 2007

A study of in-plane and z-direction strength of coating layers with varying latex content, TAPPI JOURNAL December 2007

Journal articles
Open Access
Blended amphoteric PAMs: Hight performance as retention aids, TAPPI JOURNAL December 2007

Blended amphoteric PAMs: Hight performance as retention aids, TAPPI JOURNAL December 2007

Journal articles
Open Access
A method for evaluating ink mileage in gravure printing, TAPPI JOURNAL December 2007

A method for evaluating ink mileage in gravure printing, TAPPI JOURNAL December 2007

Journal articles
Open Access
Upgrading OCC and Recycled Liner Pulps by Medium-Consistency Ozone Treatment, TAPPI JOURNAL, February 2007

Upgrading OCC and Recycled Liner Pulps by Medium-Consistency Ozone Treatment, TAPPI JOURNAL, February 2007

Journal articles
Open Access
Dynamic Modeling of a Paper Machine, Part I: Programming and Software Development, TAPPI JOURNAL, January 2007

Dynamic Modeling of a Paper Machine, Part I: Programming and Software Development, TAPPI JOURNAL, January 2007

Journal articles
Open Access
Evaluating the Surface Energy of Laboratory-Made Paper Sheets by Contact Angle Measurements, TAPPI JOURNAL, June 2007

Evaluating the Surface Energy of Laboratory-Made Paper Sheets by Contact Angle Measurements, TAPPI JOURNAL, June 2007

Journal articles
Open Access
Topography and Gloss of Precipitated Calcium Carbonate Coating Layers on a Model Substrate, TAPPI JOURNAL, May 2007

Topography and Gloss of Precipitated Calcium Carbonate Coating Layers on a Model Substrate, TAPPI JOURNAL, May 2007

Journal articles
Open Access
The influence of thickeners on coating surface structure: pair distribution analysis and correlations to structure and porosity, TAPPI JOURNAL, October 2007

The influence of thickeners on coating surface structure: pair distribution analysis and correlations to structure and porosity, TAPPI JOURNAL, October 2007

Journal articles
Open Access
Corrosion of Carbon Steel Tubes in the Mid-Furnance of Kraft Recovery Boilers--Environmental Characterization, TAPPI JOURNAL April 2009

Corrosion of Carbon Steel Tubes in the Mid-Furnance of Kraft Recovery Boilers--Environmental Characterization, TAPPI JOURNAL April 2009

Journal articles
Magazine articles
Open Access
Rheological characteristics of platy kaolin, TAPPI JOURNAL September 2019

ABSTRACT: Platy kaolin can provide significant value in the coating of paper and paperboard. It can be used in multiple applications and can provide benefits such as titanium dioxide (TiO2) extension, smoothness improvement, improved print gloss or ink set rates, calendering intensity reduction, and improved barrier properties. It is not a pigment that can be simply substituted for traditional hydrous kaolin without some adjustment to the coating formulation. These adjustments can be as simple as reducing solids, but may require binder changes as well. The coater setup may need to be adjusted because of the unique rheological behaviors these pigments exhibit.The unique rheological characteristics of platy kaolin are explored here. Measurements of the water retention of platy kaolin containing coatings confirm that water retention is not reduced in comparison to more blocky kaolin pigments, despite the lower coating solids at which they need to be run. This means that the rheological characteristics are the most important in understanding the runnability. An extensive analysis reveals some unique behaviors that need to be understood when utilizing these materials. Viscoelastic measurements indicate that, for this binder system, Tan d is mainly a function of solids. This may explain how weeping is initiated on a blade coater. The degree of shear thinning behaviors is investigated using the Ostwald de-Waele power law. The immobilization point was determined using the Dougherty-Krieger equation and related to the work of Weeks at the University of Maine on blade coater runnability. An indirect measure of particle shape and size synergy is also demonstrated using the Dougherty-Krieger equation parameters.

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