Počet záznamů: 1
Properties of water steam-treated maple wood (Acer pseudoplatanus L.)
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SYSNO ASEP 0537044 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Properties of water steam-treated maple wood (Acer pseudoplatanus L.) Tvůrce(i) Novák, I. (SK)
Kleinová, A. (SK)
Janigová, I. (SK)
Mičušík, M. (SK)
Sedliačik, J. (SK)
Šlouf, Miroslav (UMCH-V) RID, ORCID
Bekhta, P. (UA)
Matyašovský, J. (SK)
Jurkovič, P. (SK)Zdroj.dok. Wood Research. - : Štátny drevársky výskumný ústav - ISSN 1336-4561
Roč. 65, č. 6 (2020), s. 865-876Poč.str. 12 s. Jazyk dok. eng - angličtina Země vyd. SK - Slovensko Klíč. slova maple wood ; hydrothermal modification ; contact angle Vědní obor RIV CD - Makromolekulární chemie Obor OECD Polymer science Způsob publikování Open access Institucionální podpora UMCH-V - RVO:61389013 UT WOS 000599814100001 DOI 10.37763/wr.1336-4561/65.6.865876 Anotace The hydrothermal treatment of maple (Acer pseudoplatanus L.) wood by steam represents the modification method with the effective heat transfer, which can improve industrially significant properties of wood, i.e. its color, hydrophobicity and subsequently dimensional stability. The maple wood was modified by steam at 125 degrees C during 8 hours, and at pressure of 0.18 MPa. The water contact angle of steam-treated maple wood increased from 44.9 degrees (for untreated maple wood) to 55.3 degrees (for steam-treated maple wood), and the stability of water drop on steam-treated maple wood surface increased. FTIR spectra show an increase in C=O and glycoside bonds concentration on the surface of steam-treated maple wood, but the concentration of C-O-C groups decreased. SEM micro photos confirmed the deformation and shrinking of maple wood cells due to steam treatment. XPS measurements confirmed, that the concentration of oxygen as well as C=O and C-O-C groups on the surface of steam-treated maple wood showed a slight decrease in comparison with pristine wood sample. Pracoviště Ústav makromolekulární chemie Kontakt Eva Čechová, cechova@imc.cas.cz ; Tel.: 296 809 358 Rok sběru 2021 Elektronická adresa http://www.woodresearch.sk/articles.php?volume=20&issue=85
Počet záznamů: 1