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    • Keywords


      UFC resin; structure; TGA/DTA; thermal degradation kinetics; activation energy.

    • Abstract


      This article reports a study on the structural characterization and evaluation of thermal degradation kinetics of urea–formaldehyde resin modified with cellulose, known as UFC resin. Structural characterization of UFC undertaken by scanning electron microscopy, Fourier transform infrared and X-ray diffractionanalyses reveals that the resin is fairly homogenous, and it constitutes of partly crystalline structure including urea–formaldehyde/cellulose interface morphology different from UFC precursors. Measurement of inherent thermal stability, probing reaction complexity and the thermal degradation kinetic analysis of UFC have been carried out by thermogravimetric/differential thermal analyses (TGA/DTA) under non-isothermal conditions. The integral proceduredecomposition temperature elucidates significant thermal stability of UFC. TGA/DTA analyses suggest highly complicated reaction profile for thermal degradation of UFC, comprising various parallel/consecutive reactions.Different differential and integral isoconversional methods have been employed to determine the thermal degradation activation energy of UFC. Substantial variation in activation energy with the advancement of reaction verifiesmulti-step reaction pathway of UFC. A plausible interpretation of the obtained kinetic parameters of UFC thermal degradation with regard to their physical meanings is given and discussed in this study.

    • Author Affiliations



      1. University of Mohammed V, Faculty of Sciences, Department of Chemistry, Laboratory of Composite Materials, Polymers and Environment, Avenue Ibn Batouta, P.O. Box 1014, Rabat–Agdal 10106, Morocco
      2. Departamento de Ingeniería Química Industrial y del Medio Ambiente, E.T.S.I. Industriales, Universidad Politécnica de Madrid, Madrid 28006, Spain
      3. Laboratory of Applied Chemistry and Environment, Faculty of Sciences, Med I University, Oujda 60000, Morocco
    • Dates

  • Bulletin of Materials Science | News

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      Posted on July 25, 2019

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