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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{
  "DOI": "10.17423/afx.2019.61.1.03", 
  "container_title": "Acta Facultatis Xylologiae Zvolen", 
  "title": "Assessment of the chemical change in heat treated pine wood by near infrared spectroscopy", 
  "issued": {
    "date-parts": [
      [
        2019, 
        4, 
        10
      ]
    ]
  }, 
  "abstract": "<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>", 
  "ISSN": "1336-3824", 
  "page": "31-42", 
  "volume": "61", 
  "author": [
    {
      "family": "Zuzana Vidholdov\u00e1"
    }, 
    {
      "family": "Anna Sandak"
    }, 
    {
      "family": "Jakub Sandak"
    }
  ], 
  "type": "article-journal", 
  "issue": "1", 
  "id": "2635541"
}
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