Abstract:
Aim of the present work is to evaluate the physical properties of cellulosic pulps refined in a PFI mil through analysis of interlaboratorial data. These data were collected from physical tests on laboratory handsheets prepared with refined pulps supplied by 10 different laboratories. Although a high dispersion in the univariate graphics due to the singular calibration of each of the PFI mills, the several multivariate PCA analysis for 20, 30, 40, 50 °SR degrees (Schopper-Riegler) clearly show the variations in thickness, tensile index, tear strength, burst strength, air permeance associated with the different refining level. Additional properties included in the experiments are elongation and opacity. This is the first work, at least for eucalyptus bleached fiber, analyzing 10 different PFI mills, and it is a companion paper for a second one which compares the PFI mill action with and industrial disk refiner for same class of fibers and same °SR, and also for a third work analyzing the collaborative testing laboratory control for PFI
Reference:
YASUMURA, P.K.; D ÁLMEIDA, M.L.O. Multivariate statistical evaluation of physical properties of pulps refined in a PFI MILL. O Papel, v. 73, n. 5, p. 59-65, mar., 2012.
Access to the article on the Journal’s website:
http://www.revistaopapel.org.br/noticia-anexos/1359374993_5361cc69910e06630915ade2ac0a27d6_1985788706.pdf
Aim of the present work is to evaluate the physical properties of cellulosic pulps refined in a PFI mil through analysis of interlaboratorial data. These data were collected from physical tests on laboratory handsheets prepared with refined pulps supplied by 10 different laboratories. Although a high dispersion in the univariate graphics due to the singular calibration of each of the PFI mills, the several multivariate PCA analysis for 20, 30, 40, 50 °SR degrees (Schopper-Riegler) clearly show the variations in thickness, tensile index, tear strength, burst strength, air permeance associated with the different refining level. Additional properties included in the experiments are elongation and opacity. This is the first work, at least for eucalyptus bleached fiber, analyzing 10 different PFI mills, and it is a companion paper for a second one which compares the PFI mill action with and industrial disk refiner for same class of fibers and same °SR, and also for a third work analyzing the collaborative testing laboratory control for PFI
Reference:
YASUMURA, P.K.; D ÁLMEIDA, M.L.O. Multivariate statistical evaluation of physical properties of pulps refined in a PFI MILL. O Papel, v. 73, n. 5, p. 59-65, mar., 2012.
Access to the article on the Journal’s website:
http://www.revistaopapel.org.br/noticia-anexos/1359374993_5361cc69910e06630915ade2ac0a27d6_1985788706.pdf
