Search
Use the search bar or filters below to find any TAPPI product or publication.
Filters
Content Type
Publications
Level of Knowledge
Committees
Collections
Journal articles
Magazine articles
Rheological behavior of magnetic pulp fiber suspensions, TAPPI Journal June 2021
ABSTRACT: This paper is focused on the rheology of magnetic pulp suspensions in absence and presence of an external magnetic field. Magnetic fibers were prepared by the lumen loading method using bleached eucalyptus fibers and cobalt ferrite (CoFe2O4) nanoparticles. The effect of mass consistency, temperature, concentration of magnetic fibers, and magnetic field strength on yield stress and apparent viscosity of the suspensions were investigated. In the absence of an applied field, a dependence of yield stress with consistency, as well as with the percentage of magnetic fibers present in the suspension, was found. In flow tests, all the suspensions exhibited shear-thinning behavior, showing that the viscosity is only affected by the consistency of the suspension. On the other hand, magnetorheological measurements show a negative effect of the applied magnetic field on the viscosity of the suspension.
Journal articles
Magazine articles
Effects of lignin chemistry on oxygen delignification performance, TAPPI JOURNAL July 2018
Effects of lignin chemistry on oxygen delignification performance, TAPPI JOURNAL July 2018
Journal articles
Magazine articles
Effect of ring formation on burner flame stability in lime kilns, TAPPI JOURNAL May 2018
Effect of ring formation on burner flame stability in lime kilns, TAPPI JOURNAL May 2018
Journal articles
Magazine articles
Prediction of box failure from paper data for asymmetric corrugated board, TAPPI JOURNAL August 2018
Prediction of box failure from paper data for asymmetric corrugated board, TAPPI JOURNAL August 2018
Journal articles
Magazine articles
Improving the inkjet codability of folding boxboard, TAPPI Journal February 2019
Improving the inkjet codability of folding boxboard, TAPPI Journal February 2019
Journal articles
Magazine articles
Measurement of the dynamics of fluid sorption for tissue papers, TAPPI Journal July 2019
ABSTRACT: Liquid absorption ability belongs to the most important features of tissue papers. Due to non-homo-geneous internal and superficial structures, precise and fast evaluation of this property is challenging. The main aim of the presented research was to design an experimental device dedicated to the measurement of the kinetics of wetting phenomenon for tissue papers. The second aim was to evaluate whether it was possible to use image analysis for more precise characterization of liquid absorption properties of tissue paper. The obtained results showed that the method used, based on image analysis supported by gravimetric methods, proved to efficiently and quantitatively characterize the dynamics of liquid absorption for tissue papers. Supplementary parameters such as absorption anisotropy and in-plane velocity were obtained. Different experi-mental results were obtained for various tissue paper grades. Furthermore, water absorption capacity calculated from image analysis data correlated with results obtained according to the standard method EN ISO 12625-8:2010 “Tissue paper and tissue products—Part 8: Water-absorption time and water-absorption capacity, basket-immersion test method.” Hence, the presented device quantitatively characterizes and discriminates water absorption phenom-enon for tissue papers.
Journal articles
Magazine articles
Operating parameters affecting the thermal performance of bi
Operating parameters affecting the thermal performance of biomass boilers, TAPPI JOURNAL August 2017
Journal articles
Magazine articles
Drying characteristics of biosludge from pulp and paper mill
Drying characteristics of biosludge from pulp and paper mills, TAPPI Journal August 2017
Journal articles
Magazine articles
Low-temperature precausticizing — a hopeful approach for green liquor desilication, TAPPI JOURNAL February 2017
Low-temperature precausticizing — a hopeful approach for green liquor desilication, TAPPI JOURNAL February 2017
Journal articles
Magazine articles
The Chinese ban on recovered paper imports
The Chinese ban on recovered paper imports: An international disruption, TAPPI JOURNAL November 2017