Journal article Open Access

Assessment of the chemical change in heat treated pine wood by near infrared spectroscopy

Zuzana Vidholdová; Anna Sandak; Jakub Sandak


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{
  "description": "<p>Fourier-transform near-infrared spectroscopy (FT-NIR) was used as none-destructive&nbsp;method to determinate changes in the chemical structure of heat-treated wood. For this purpose,&nbsp;pine sapwood (Pinus sylvestris L.) was treated at different temperatures (from 100 &deg;C to 240 &deg;C)&nbsp;and for three durations(1, 3 or 5 hours). The effects of chemical changes on the FT-NIR spectra are linked to absorbance changes of functional groups (&ndash;OH, &ndash;CH, &ndash;CO and &ndash;CH2) of lignin,&nbsp;hemicelluloses and cellulose. Gradual degradation of amorphous portion of cellulose was&nbsp;caused by high temperature, while crystalline and semi-crystalline portions of cellulose&nbsp;seem to be less affected by the thermal treatment. The effect of various intensities of heat&nbsp;treatment on chemical changes of wood polymers varied depending on temperature and&nbsp;duration. Presentation of spectra in the form of the xylograms shows clear tendency of&nbsp;degradation kinetic. Evaluation of thermal stability of selected wood component and/or&nbsp;comparison of the influence of modification process parameters can be carried out.</p>", 
  "license": "https://creativecommons.org/licenses/by/4.0/legalcode", 
  "creator": [
    {
      "affiliation": "Technical University in Zvolen", 
      "@type": "Person", 
      "name": "Zuzana Vidholdov\u00e1"
    }, 
    {
      "affiliation": "InnoRenew CoE; University of Primorska; Trees and Timber Institute CNR-IVALSA", 
      "@id": "https://orcid.org/0000-0002-2515-0991", 
      "@type": "Person", 
      "name": "Anna Sandak"
    }, 
    {
      "affiliation": "InnoRenew CoE; University of Primorska; Trees and Timber Institute CNR-IVALSA", 
      "@id": "https://orcid.org/0000-0001-9190-677X", 
      "@type": "Person", 
      "name": "Jakub Sandak"
    }
  ], 
  "headline": "Assessment of the chemical change in heat treated pine wood by near infrared spectroscopy", 
  "image": "https://zenodo.org/static/img/logos/zenodo-gradient-round.svg", 
  "datePublished": "2019-04-10", 
  "url": "https://zenodo.org/record/2635541", 
  "keywords": [
    "Pine", 
    "Heat treatment", 
    "xylograms", 
    "FT-NIR"
  ], 
  "@context": "https://schema.org/", 
  "identifier": "https://doi.org/10.17423/afx.2019.61.1.03", 
  "@id": "https://doi.org/10.17423/afx.2019.61.1.03", 
  "@type": "ScholarlyArticle", 
  "name": "Assessment of the chemical change in heat treated pine wood by near infrared spectroscopy"
}
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