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Magazine articles
Open Access
Co-ground mineral/microfibrillated cellulose composite materials: Recycled fibers, engineered minerals, and new product forms, TAPPI Journal January 2021

ABSTRACT: When pulp and minerals are co-processed in suspension, the mineral acts as a grinding aid, allowing costeffective production of mineral/microfibrillated cellulose (MFC) composite materials. This processing uses robust milling equipment and is practiced at industrial scale. The resulting products can be used in many applications, including as wet- and dry-strength aids in paper and board production.Previously, we have reported that use of these MFC composite materials in fiber-based applications allow generally improved wet and dry mechanical properties with concomitant opportunities for cost savings, property improvements, or grade developments. Mineral/MFC composites made with recycled pulp feedstocks were shown to offer at least equivalent strength aid performance to composites made using virgin fibers. Selection of mineral and fiber allows preparation of mineral/MFC composites with a range of properties. For example, the viscosity of such formulations was shown to be controlled by the shape factor of the mineral chosen, effective barrier formulations were prepared, and mineral/MFC composites with graphite as the mineral were prepared.High-solids mineral/MFC composites were prepared at 75% total solids (37% fibril solids). When resuspended and used for papermaking, these high-solids products gave equivalent performance to never-dried controls.

Magazine articles
Open Access
Indonesian update: a country in change, an industry in recovery, TAPPI JOURNAL, September 1998, Vol. 81(9)

Indonesian update: a country in change, an industry in recovery, TAPPI JOURNAL, September 1998, Vol. 81(9)

Journal articles
Open Access
Environmental progress at Howe Sound Pulp & Paper, TAPPI JOURNAL, September 1998, Vol. 81(9)

Environmental progress at howe sound pulp & paper, TAPPI JOURNAL, September 1998, Vol. 81(9)

Journal articles
Open Access
Creating value in the mature paper industry, TAPPI JOURNAL, September 1998, Vol. 81(9)

Creating value in the mature paper industry, TAPPI JOURNAL, September 1998, Vol. 81(9)

Journal articles
Open Access
Cleaning and conditioning paper machine clothing for recycled fiber use, TAPPI JOURNAL, April 1999, Vol. 82(4)

Cleaning and conditioning paper machine clothing for recycled fiber use, TAPPI JOURNAL, April 1999, Vol. 82(4)

Journal articles
Open Access
Design and installation of a rplacement thermal oxidizer for odor abatement, TAPPI JOURNAL, April 1999, Vol. 82(4)

Design and installation of a rplacement thermal oxidizer for odor abatement, TAPPI JOURNAL, April 1999, Vol. 82(4)

Journal articles
Open Access
Effects of system closure on retention- and drainage-aid performance in tmp newsprint manufacture, TAPPI JOURNAL, April 1999, Vol. 82(4)

Effects of system closure on retention- and drainage-aid performance in tmp newsprint manufacture, TAPPI JOURNAL, April 1999, Vol. 82(4)

Magazine articles
Open Access
An overview of the south african pulp and paper industry, TAPPI JOURNAL, April 1999, Vol. 82(4)

An overview of the south african pulp and paper industry, TAPPI JOURNAL, April 1999, Vol. 82(4)

Magazine articles
Open Access
Retention aids for highspeed paper machines, TAPPI JOURNAL, April 1999, Vol. 82(4)

Retention aids for highspeed paper machines, TAPPI JOURNAL, April 1999, Vol. 82(4)

Journal articles
Open Access
Shop talk: improving dryer performance: converting to stationary siphons with turbulence bars, TAPPI JOURNAL, April 1999, Vol. 82(4)

Shop talk: improving dryer performance: converting to stationary siphons with turbulence bars, TAPPI JOURNAL, April 1999, Vol. 82(4)

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