caa a22 4500 463232119 CHVBK 20180405153245.0 cr unu---uuuuu 170326e20070101xx s 000 0 eng 10.1007/s10853-006-1146-9 doi (NATIONALLICENCE)springer-10.1007/s10853-006-1146-9 An analytical model for number of fibre-fibre contacts in paper and expressions for relative bonded area (RBA) [Elektronische Daten] [Jihong He, Warren Batchelor, Robert Johnston] This paper proposes an analytical model for calculating the number of fibre-fibre contacts per unit fibre length from the cross-sectional dimensions of the fibres in a sheet and sheet density. This model has been verified with data of the number of fibre-fibre contacts measured directly in handsheets. The measured fibre-fibre contacts in the handsheets were classified into full and partial contacts. The model best fits this data when 1.5 partial contacts are equated to one full contact. A plot of measured versus predicted equivalent full contacts produced a linear correlation with a slope of 0.99 and correlation coefficient of R 2 =0.93. The model was used to derive expressions for the fraction of the available fibre surface, which is bonded to other fibres, a quantity called the Relative Bonded Area (RBA). The validity of the model was checked using experimental data for RBA. RBA was determined both by nitrogen adsorption ( $$ {\hbox{RBA}}_{{\hbox{N}}_2 } $$ ) and by scattering coefficient (RBAsc). The extrapolation method of Ingmanson and Thode to determine S 0, the scattering coefficient of an unbonded sheet, proved to be inaccurate. We estimated S 0 for some samples from their linear relationship between scattering coefficient and nitrogen adsorption. The new model accurately predicted both $$ {\hbox{RBA}}_{{\hbox{N}}_{\hbox{2}} } $$ and RBAsc. Springer Science+Business Media, LLC, 2006 He Jihong Australian Pulp and Paper Institute, Department of Chemical Engineering, Monash University, P.O. Box 36, 3800, Melbourne, Victoria, Australia aut Batchelor Warren Australian Pulp and Paper Institute, Department of Chemical Engineering, Monash University, P.O. Box 36, 3800, Melbourne, Victoria, Australia aut Johnston Robert Australian Pulp and Paper Institute, Department of Chemical Engineering, Monash University, P.O. Box 36, 3800, Melbourne, Victoria, Australia aut Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/2(2007-01-01), 522-528 0022-2461 42:2<522 2007 42 10853 https://doi.org/10.1007/s10853-006-1146-9 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10853-006-1146-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- He Jihong Australian Pulp and Paper Institute, Department of Chemical Engineering, Monash University, P.O. Box 36, 3800, Melbourne, Victoria, Australia aut NATIONALLICENCE 700 1- Batchelor Warren Australian Pulp and Paper Institute, Department of Chemical Engineering, Monash University, P.O. Box 36, 3800, Melbourne, Victoria, Australia aut NATIONALLICENCE 700 1- Johnston Robert Australian Pulp and Paper Institute, Department of Chemical Engineering, Monash University, P.O. Box 36, 3800, Melbourne, Victoria, Australia aut NATIONALLICENCE 773 0- Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/2(2007-01-01), 522-528 0022-2461 42:2<522 2007 42 10853 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer