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Retaining Surface Fibrillation of Wet-Beaten Wood Pulp in the Dry State

Tappi journal, 2009-08, Vol.8 (7), p.25-30

ISSN: 0734-1415 ;EISSN: 0734-1415 ;DOI: 10.32964/TJ8.7.25

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  • Title:
    Retaining Surface Fibrillation of Wet-Beaten Wood Pulp in the Dry State
  • Author: MAO, JINGLIANG ; KADLA, JOHN F. ; KEREKES, RICHARD J.
  • Is Part Of: Tappi journal, 2009-08, Vol.8 (7), p.25-30
  • Description: "Air filters produced from surface-fibrillated wood pulp may be a promising new, environmentally friendly means of removing pathogens from air. Such filters combine the attributes of large surface area with large permeability, are produced from a renewable resource, and are disposable by incineration as a carbon-neutral fuel when contaminated. We explored various approaches to producing high-surface fibrillated wood pulp fibers in the dry state and then forming them into high-performance filter pads. Wet beating of the bleached chemical pulp, followed by wet forming and partial freeze-drying to 85% consistency, then air-drying was the best approach. The resulting pads possessed large surface area and produced low pressure drop suitable for high-performance filtering of nano-size particles suspended in air."
  • Language: English
  • Identifier: ISSN: 0734-1415
    EISSN: 0734-1415
    DOI: 10.32964/TJ8.7.25
  • Source: Alma/SFX Local Collection
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