publication . Article . 2010

Substitution of Phenolic Components by Steam-Exploded Lignin in Plywood and Self-Binding Boards with Account of Energy Vecessary for Steam Explosion Treatment

Grāvītis, J; Abolins, J; Tapciauskas, R; Vēveris, A; Alksnis, B;
Open Access English
  • Published: 01 Jan 2010
  • Publisher: RTU
  • Country: Latvia
Abstract
By using lignin extracted from steam-exploded wood as adhesive in plywood and hot-pressed fibreboards to substitute phenol-formaldehyde resins is reported. Mixtures of commercial phenol-formaldehyde resins containing 10 % lignin by weight tested as plywood binders under conditions of factory production show satisfactory cohesion. Properties of sample boards containing different amount of lignin adhesive are compared between themselves and with the EU standards for fibreboards. A strong correlation of density and form stability under humid conditions with the lignin content is found. Results of testing mechanical properties of the boards suggest that effect of li...
Subjects
Medical Subject Headings: complex mixturesfood and beveragestechnology, industry, and agriculture
free text keywords: steam explosion (SE), SE lignin, plywood, fibreboard, SE energy evaluation
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