CHARACTER AND STABILITY OF COLLOIDAL SUBSTANCES IN A MECHANICAL PULP SUSPENSION

Authors
NYLUND J LAGUS O ECKERMAN C
Citation
J. Nylund et al., CHARACTER AND STABILITY OF COLLOIDAL SUBSTANCES IN A MECHANICAL PULP SUSPENSION, Colloids and surfaces. A, Physicochemical and engineering aspects, 85(1), 1994, pp. 81-87
Citations number
25
Categorie Soggetti
Chemistry Physical
Journal title
Colloids and surfaces. A, Physicochemical and engineering aspects → ACNP
ISSN journal
09277757
Volume
85
Issue
1
Year of publication
1994
Pages
81 - 87
Database
ISI
SICI code
0927-7757(1994)85:1<81:CASOCS>2.0.ZU;2-P
Abstract
Dispersed colloidal substances present in aqueous suspensions of unble ached thermomechanical pulp were studied by transmission electron micr oscopy and by flocculation experiments. The colloidal substances were primarily lipophilic extractive droplets and colloidal fiber fragments . When larger colloidal fiber fragments were removed by ultracentrifug ation the stability of the lipophilic droplets against flocculation an d sedimentation with cationic polyelectrolytes was enhanced.