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An innovative method for the chemical modification of Carpinus betulus wood: a methodology and approach study

  • Ehsan Bari ORCID logo EMAIL logo , Ali Jamali , Nouredin Nazarnezhad , Darrel D. Nicholas , Miha Humar and Mohammad Najafian
Published/Copyright: May 14, 2019
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Abstract

The objective of this research was to evaluate the influence of acetyl and methyl bonds on the physical, mechanical, photochemical and biological resistance properties of hornbeam wood. Carpinus betulus (hornbeam) wood is considered to be a less valuable species due to poor durability. In order to improve its properties, a novel and simple method was applied to modify wood samples. Hence, wood samples were modified by either acetylation or methylation at four treatment levels. Reactions between hornbeam wood and the formalin and acetic acid treatment system were successful as exemplified by increased mass [weight percent gain (WPG)], slightly better compression strength and considerably improved impact bending strength. Furthermore, the biological decay resistance of the treated wood samples increased for all of the treatments.

Acknowledgments

The authors are grateful to Prof. Olaf Schmidt from Department of Wood Biology, University of Hamburg, Germany, for providing the isolate of soft-rot fungus.

  1. Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.

  2. Research funding: The research was partly supported by the Slovenian Research Agency in the frame of program P4 0015 and project L4-7547.

  3. Employment or leadership: None declared.

  4. Honorarium: None declared.

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Article note

This paper is a part of the Bachelor’s thesis of the second author, Ali Jamali.


Received: 2018-10-12
Accepted: 2019-04-02
Published Online: 2019-05-14
Published in Print: 2019-08-27

©2019 Walter de Gruyter GmbH, Berlin/Boston

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