Thermal characterization and comparisons of lignin-formaldehyde and lignin-glyoxal adhesives

Authors

  • Mohamed Ammar Materials, Environment and Energy Laboratory, Faculty of Sciences of Gafsa, University Gafsa -Tunisia
  • Ramzi Khiari Research Unity of Applied Chemistry & Environment, Department of Chemistry, Faculty of Sciences, University of Monastir, 5019 Tunisia.
  • Mohamed Naceur Belgacem 3Laboratoire de Génie des Procédés Papetiers (LGP2), UMR CNRS 5518, Grenoble INP-Pagora – 461, rue de la papeterie – 38402 Saint-Martin-d’Hères, France
  • Elimame Elaloui Materials, Environment and Energy Laboratory, Faculty of Sciences of Gafsa, University Gafsa -Tunisia

DOI:

https://doi.org/10.13171/mjc.2.6.2014.20.03.11

Abstract

In the present study, the main focus was the use of lignin isolated through an industrial waste (black liquor) to prepare phenolic-type resins. Thermal properties of control lignin-formaldehyde adhesive (RLF) and lignin –glyoxal adhesive (RLG) have been investigated in detail. The effect of methylolation of lignin by formaldehyde and glyoxal have been studied using thermogravimetric analysis (TG) and differential scanning calorimetry (DSC). Methylolation has significant effect on the structure and the thermal stability of lignin. Rate of curing is enhanced by the type of curing agent and temperature.

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Published

2014-03-20

Issue

Section

Physical Chemistry