A NON-DESTRUCTIVE METHOD FOR DETERMINATION OF THE MECHANICAL STRENGTH OF VIRGIN AND RECYCLED PULPS
Fibre-fibre bonding plays an important role in the mechanical strength of paper and board products and is often improved by refining. In this study, pine and eucalypt pulps obtained from commercial pulp mills are refined to different freeness. It is evident that refining increases the surface area of fibres and hence improves elastic modulus of handsheets significantly. FTIR spectra obtained for these pulp samples have implied that the number of hydrogen bonds in the fibre network also increases with the degree of refining. A multivariate analysis (PLS) is used to establish a correlation between the elastic modulus and FTIR spectral data of the handsheets. It is clearly shown that the PLS model is statistically robust to predict the elastic modulus for the virgin pulp samples. An attempt to predict the elastic modulus of recycled pulps using the PLs model is also addressed in this study.
pulp refining FTIR hydrogen bonding elastic modulus and PLS
Viet Hoang Kien L. Nguyen
Australian Pulp and Paper Institute Monash University, Clayton 3800, Australia
国际会议
广州
英文
821-826
2006-11-08（万方平台首次上网日期，不代表论文的发表时间）