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Journal articles
Modeling coating structure development using a monte carlo deposition method part 2: validation of the model and case study, TAPPI JOURNAL, May 2003, Vol. 2(5) (262KB)
Modeling coating structure development using a monte carlo deposition method part 2: validation of the model and case study, TAPPI JOURNAL, May 2003, Vol. 2(5) (262KB)
Journal articles
Fiber surface saturation as a strategy to optimize dual-poly
Fiber surface saturation as a strategy to optimize dual-polymer dry strength treatment, Solutions! & TAPPI JOURNAL, November 2003, Vol. 2(11) (156KB)
Journal articles
Ring crush and short span compression for predicting edgewis
Ring crush and short span compression for predicting edgewise compressive strength, Solutions! & TAPPI JOURNAL, November 2003, Vol. 2(11) (113KB)
Journal articles
A review of gas flows in fiber suspensions, TAPPI JOURNAL, Online Exclusive, November 2003, Vol. 2(11) (775KB)
A review of gas flows in fiber suspensions, TAPPI JOURNAL, Online Exclusive, November 2003, Vol. 2(11) (775KB)
Journal articles
An examination of two hybrid top-wire former configurations for producing newsprint, TAPPI JOURNAL, October 2003, Vol. 2(10) (300KB)
An examination of two hybrid top-wire former configurations for producing newsprint, Solutions! & TAPPI JOURNAL, October 2003, Vol. 2(10) (300KB)
Journal articles
A new retention aid for the production of SC printing grades: pilot paper machine results, TAPPI JOURNAL, September 2003, Vol. 2(9) (255KB)
A new retention aid for the production of SC printing grades: pilot paper machine results, Solutions! & TAPPI JOURNAL, September 2003, Vol. 2(9) (255KB)
Journal articles
Potential of mimosa (albizia julibrissin ) for papermaking, TAPPI JOURNAL, September 2003, Vol. 2(9) (150KB)
Potential of mimosa (albizia julibrissin ) for papermaking, Solutions! & TAPPI JOURNAL, September 2003, Vol. 2(9) (150KB)
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.
Journal articles
Magazine articles
Flow characteristics of drag-reducing natural bamboo fiber suspensions with minimal environmental load, TAPPI Journal September 2019
ABSTRACT: The reduction of pipe friction loss by adding drag-reducing agents has attracted attention as an aid to energy conservation. Drag-reducing agents induce drag reduction (DR) effects and should have a minimal environmental load, with natural resource-saving potential. This study demonstrates bamboo fiber as a drag-reducing agent that saves natural resources and has a low environmental load. Using pressure drop measurements, we report DR with suspensions of bamboo fibers with the average diameter of 13.3 µm and aspect ratio of 98.7. The maximum DR obtained in this experiment is 43% at the concentration of 4000 ppm and pipe diameter of 30 mm; DR is affected by the Reynolds number, suspension concentration, and pipe diameter. In addition, the bamboo fibers can be easily removed from the suspensions by filtration. We found that low-environmental-load bamboo fiber has DR effects like those of other fibers; its effects are greater than those of conventional synthetic fibers and wood pulp. Furthermore, it is resistant to mechanical degradation, recoverable, and recyclable. Therefore, DR effects can be selectively obtained by adding the fibers only when DR is needed; the fibers can then be collected when DR is no longer necessary. This method might greatly expand the application range of DR agents. The results demonstrate the usefulness of bamboo fibers as DR additives.
Journal articles
Editorial: Advances in Pulp Manufacture: A review of the 2012 PEERS Conference, TAPPI JOURNAL February 2013
Editorial: Advances in Pulp Manufacture: A review of the 2012 PEERS Conference, TAPPI JOURNAL February 2013