Marion Thébault1, Ya Li1, Christopher Beuc1, Stephan Frömel-Frybort1,2, Edith-Martha Zikulnig-Rusch1, Larysa Kutuzova3, Andreas Kandelbauer3,*
Journal of Renewable Materials, Vol.8, No.10, pp. 1181-1198, 2020, DOI:10.32604/jrm.2020.09755
Abstract High Pressure Laminates (HPL) panels consist of stacks of self-gluing
paper sheets soaked with phenol-formaldehyde (PF) resins. An important requirement for such PFs is that they must rapidly penetrate and saturate the paper pores.
Partially substituting phenol with bio-based phenolic chemicals like lignin
changes the physico-chemical properties of the resin and affects its ability to
penetrate the paper. In this study, PF formulations containing different proportions
of lignosulfonate and kraft lignin were used to prepare paper-based laminates. The
penetration of a Kraft paper sheet was characterized by a recently introduced, new
device measuring the conductivity between both sides of the… More >
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