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Conference papers
Impact of time dependent liquid properties on paper wetting, measured with pico-drop contact angle measurement, 19PaperCon
Impact of time dependent liquid properties on paper wetting, measured with pico-drop contact angle measurement, 19PaperCon
Conference papers
Cellulose Nanocrystal Coated Polymer Films-The Next Generation of Sustainable High Barrier Packaging Film, 19PaperCon
Cellulose Nanocrystal Coated Polymer Films-The Next Generation of Sustainable High Barrier Packaging Film, 19PaperCon
Conference papers
Development of More Sustainable Barrier Technology for Packaging, 19PaperCon
Development of More Sustainable Barrier Technology for Packaging, 19PaperCon
Conference papers
Surface application of cellulose microfibrils on paper • Effects of basis weight and surface coverage levels, 19PaperCon
Surface application of cellulose microfibrils on paper • Effects of basis weight and surface coverage levels, 19PaperCon
Conference papers
Introduction to Wet Strength Resins, 19PaperCon
Introduction to Wet Strength Resins, 19PaperCon
Conference papers
Increased Machine Efficiency Using A Novel, Structured Wet Strength Resin, 19PaperCon
Increased Machine Efficiency Using A Novel, Structured Wet Strength Resin, 19PaperCon
Conference papers
Application of Cellulosic Based Wood Additives for Recycled Paper Applications •A pilot Machine Study, 19PaperCon
Application of Cellulosic Based Wood Additives for Recycled Paper Applications •A pilot Machine Study, 19PaperCon
Conference papers
Modified Starch for Quality Optimization in Tissue and Towel Grades, 19PaperCon
Modified Starch for Quality Optimization in Tissue and Towel Grades, 19PaperCon
Conference papers
Recycled Furnish Strength Enhancement via Enzyme Application to the Refiners • Mill Trial Results, 19PaperCon
Recycled Furnish Strength Enhancement via Enzyme Application to the Refiners • Mill Trial Results, 19PaperCon
Journal articles
Magazine articles
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.