All

What are you looking for?

All
Projects
Results
Organizations

Quick search

  • Projects supported by TA ČR
  • Excellent projects
  • Projects with the highest public support
  • Current projects

Smart search

  • That is how I find a specific +word
  • That is how I leave the -word out of the results
  • “That is how I can find the whole phrase”

Colour and Chemical Changes of Black Locust Wood during Heat Treatment

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43410%2F23%3A43923019" target="_blank" >RIV/62156489:43410/23:43923019 - isvavai.cz</a>

  • Alternative codes found

    RIV/60460709:41310/23:96168 RIV/68407700:21110/23:00374298

  • Result on the web

    <a href="https://doi.org/10.3390/f14010073" target="_blank" >https://doi.org/10.3390/f14010073</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.3390/f14010073" target="_blank" >10.3390/f14010073</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Colour and Chemical Changes of Black Locust Wood during Heat Treatment

  • Original language description

    Black locust is a fast-growing deciduous tree species with multiple industrial purposes due to its valuable traits. However, the heterogeneity of colour distribution between sapwood and heartwood limits its application. Thermal modification is an environment-friendly technology for improving various wood properties, especially dimensional stability, decay resistance, and colour homogeneity. In this work, black locust (Robinia pseudoacacia L.) wood samples were thermally modified at temperatures of 160, 180, and 210 oC. Extractives and main wood components were analysed by wet chemical methods, colour was measured by spectrometry, and structural changes by Fourier transform infrared spectroscopy. The obtained results show that the darkening of black locust wood, unlike other wood species of the temperate zone, is mainly caused by changes in extractives. Their content decreases during thermal treatment, but new chromophores are formed, especially in quinones. Degradation of hemicelluloses and the partial degradation of cellulose also contribute to colour changes. At higher temperatures, condensation reactions can occur in lignin, leading to the formation of some chromophores. Statistical analysis confirmed that temperature can be considered a very significant factor affecting the colour of the wood surface.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    20502 - Paper and wood

Result continuities

  • Project

  • Continuities

    I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Others

  • Publication year

    2023

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Forests

  • ISSN

    1999-4907

  • e-ISSN

    1999-4907

  • Volume of the periodical

    14

  • Issue of the periodical within the volume

    1

  • Country of publishing house

    CH - SWITZERLAND

  • Number of pages

    13

  • Pages from-to

    73

  • UT code for WoS article

    000917597100001

  • EID of the result in the Scopus database

    2-s2.0-85146787840