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Title
Thermal degradation of lignin - A review
Authors
M. Brebu and C. Vasile
Received
December 17, 2009
Published
Volume 44 Issue 9 September-October
Keywords
anisotropy, coating raw paper, correlation analysis, curl, fibre orientation, fluting, formation,
Abstract
The influence of velocity gradient on the anisotropy of tensile stiffness index, tensile energy absorbance, tensile index, tear strength, tensile stiffness orientation, formation and curl of MG paper, as well as on the anisotropy of coating raw paper, was investigated. The maximum strength of MG paper was achieved in the 0.93-1.05 range of the jet-to-wire speed ratio. The best formation and the lowest curl with fibre orientation ±1.7° was achieved at a jet-to-wire speed ratio around 1.0, while CMT and SCT of fluting from a mixture of semi-chemical pulp and recovered fibres produced at a constant speed difference of the jet and wire are influenced by basis weight and semi-chemical pulp content.
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