Open AccessSYNTHESIS AND MECHANICAL PROPERTIES OF LAMINATES BASED ON PHENOLIC RESINS MODIFIED WITH SODIUM LIGNOSULFONATE
Author(s) -
María Eugenia Taverna,
R. Orellao,
Juan Ignacio Morán,
Patricia María Frontini,
Verónica V. Nicolau,
Diana Alejandra Estenoz
Publication year - 2016
Publication title -
latin american applied research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.123
H-Index - 23
eISSN - 1851-8796
pISSN - 0327-0793
DOI - 10.52292/j.laar.2016.350
Subject(s) - phenol , ultimate tensile strength , materials science , flexural strength , formaldehyde , kraft paper , composite material , lignin , pulp and paper industry , organic chemistry , chemistry , engineering
The reduction of phenol and/or formaldehyde consumption during phenolic resin synthesis is of great technological and scientific interest because of its economic and environmental implications. In this work, the addition of sodium lignosulfonate as partial replacement of phenol in the phenolic resol base resins used for decorative laminates production is experimentally studied. The work involves: i) the characterization and reactivation of lignosulfonate, ii) the industrial synthesis of traditional and modified resols by replacement of 10%w/w of phenol, iii) the industrial impregnation of Kraft-type papers with the produced resins, iv) the production of laminates at laboratory and industrial scale, and, v) the measurement of their final properties. Tensile, bending and impact strength were evaluated. Modified laminates exhibited mechanical properties statistically comparable with those of traditional laminates. Industrial tests were carried out at Centro S.A, San Francisco, Córdoba.