Search
Use the search bar or filters below to find any TAPPI product or publication.
Filters
Content Type
Publications
Level of Knowledge
Committees
Event Type
Collections
Journal articles
Magazine articles
Application of spruce wood flour as a cellulosic-based wood additive for recycled paper applications— A pilot paper machine study, TAPPI Journal October 2021
ABSTRACT: This study gives a first insight into the use of wood flour as a plant-based and cellulosic-based alternative additive for newsprint and paperboard production using 100% recycled fibers as a raw material. The study compares four varieties of a spruce wood flour product serving as cellulosic-based additives at addition rates of 2%, 4%, and 6% during operation of a 12-in. laboratory pilot paper machine. Strength properties of the produced news-print and linerboard products were analyzed. Results suggested that spruce wood flour as a cellulosic-based additive represents a promising approach for improving physical properties of paper and linerboard products made from 100% recycled fiber content. This study shows that wood flour pretreated with a plant-based polysaccharide and untreated spruce wood flour product with a particle size range of 20 µm to 40 µm and 40 µm to 70 µm can increase the bulk and tensile properties in newsprint and linerboard applications.
Journal articles
Magazine articles
Effects of phosphogypsum whiskers modification with calcium stearate and their impacts on properties of bleached softwood paper sheets, TAPPI Journal September 2021
ABSTRACT: By combining the structural properties and characteristics of phosphogypsum whiskers, a preliminary study on the modification of phosphogypsum whiskers and their application in papermaking was carried out. The effects of reaction temperature, reaction time, and reaction concentration on the solubility and retention of modified phosphogypsum whiskers and the effects of phosphogypsum whiskers on the physical properties of paper under different modified conditions were explored. The research results show that, after the phosphogypsum whiskers are modified with calcium stearate, a coating layer will be formed on the surface of the whiskers, which effectively reduces the solubility of the phosphogypsum whiskers. The best modification conditions are: the amount of calcium stearate relative to the absolute dry mass of the phosphogypsum whisker is 2.00%; the modification time is 30 min, and the modification temperature is 60°C. The use of modified phosphogypsum whiskers for paper filling will slightly reduce the whiteness, folding resistance, burst resistance, and tensile strength of the paper, but the tearing degree and retention of the filler will be increased to some extent.
Journal articles
Magazine articles
Industry 4.0: New Lexicon, No Limits, Paper360º September/October 2021
Industry 4.0: New Lexicon, No Limits, Paper360º September/October 2021
Journal articles
Magazine articles
How to Build a Maintenance 4.0 Roadmap for the Pulp and Paper Industry, Paper360º September/October 2021
How to Build a Maintenance 4.0 Roadmap for the Pulp and Paper Industry, Paper360º September/October 2021
Journal articles
Magazine articles
The Paper360° Top 75, Paper360º September/October 2021
The Paper360° Top 75, Paper360º September/October 2021
Journal articles
Magazine articles
Learning From a Legacy: How OEM Knowledge Benefits Mills, Paper360º September/October 2021
Learning From a Legacy: How OEM Knowledge Benefits Mills, Paper360º September/October 2021
Journal articles
Magazine articles
Smart Moisture Measurement Tech Optimizes Quality, Paper360º September/October 2021
Smart Moisture Measurement Tech Optimizes Quality, Paper360º September/October 2021
Journal articles
Magazine articles
Plastic Replacements Create New Opportunities, Paper360º September/October 2021
Plastic Replacements Create New Opportunities, Paper360º September/October 2021
Conference papers
Opening Session and Keynote, 2021 TAPPICon Live (21TAPL)
Opening Session and Keynote, 2021 TAPPICon Live (21TAPL)
Conference papers
Awards Breakfast, 2021 TAPPICon Live (21TAPL)
Awards Breakfast, 2021 TAPPICon Live (21TAPL)