A method of managing waste oak flour as a biocomponent for obtaining composites based on modified soybean oil
Authors:
- Anna Sienkiewicz,
- Piotr Czub
Abstract
The aim of the present research was the development of a management method for woodprocessing waste that was obtained during the production of parquet flooring. Currently mostly useless, such waste mainly ends up in landfills. The oak waste flour was used as a reinforcement material for epoxy biocomposites based on the polyaddition product of epoxidized soybean oil and bisphenol-A (ESBO_BPA). The biofiller was subjected to mercerization, acetylation, and diisocyanate modification to increase the typically poor compatibility between the highly hydrophilic wood fibers and the hydrophobic polymer matrix. Among the analyzed epoxy biocomposites, which contained about 60% raw materials of natural origin, it was found that the best mechanical properties were recorded for cured samples of the ESBO_BPA composition filled with 5 wt % of oak flour mercerized using a 5% solution of NaOH. It was also proven that a higher concentration of alkali deteriorated the mechanical-strengthening properties of the wood filler. The acetylation of the biofiller independently in the best elimination of hydroxyl groups from its structure also removed irregular strips and smoothed its surface. This resulted in a poorer wettability of the oak flour surface by the polymer and consequently an easier pullout of the filler from the polymer matrix and worse mechanical properties of the wood/epoxy composite. To the best of the authors’ knowledge, the present research was the first to examine the possibility of the application of parquet flooring post-production wood flour in biomaterials based on a polyaddition product of epoxidized soybean oil and bisphenol-A.
- Record ID
- CUT3bd41af245d449a0b81ef6ea2d616486
- Publication categories
- ;
- Author
- Journal series
- Materials, ISSN , e-ISSN 1996-1944, Biweekly
- Issue year
- 2022
- Vol
- 15
- No
- 21
- Pages
- [1-19]
- Article number
- 7737
- Other elements of collation
- fot.; schem.; tab.; wykr.; Bibliografia (na s.) - 17-19; Bibliografia (liczba pozycji) - 60; Oznaczenie streszczenia - Abstr.; Numeracja w czasopiśmie - Vol. 15, Iss. 21
- Keywords in English
- wood flour, biocomposite, epoxy resin, epoxy fusion process
- ASJC Classification
- DOI
- DOI:10.3390/ma15217737 Opening in a new tab
- URL
- https://www.mdpi.com/1996-1944/15/21/7737 Opening in a new tab
- Language
- eng (en) English
- License
- Score (nominal)
- 140
- Score source
- journalList
- Score
- Publication indicators
- Additional fields
- Indeksowana w: Web of Science, Scopus
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUT3bd41af245d449a0b81ef6ea2d616486/
- URN
urn:pkr-prod:CUT3bd41af245d449a0b81ef6ea2d616486
* presented citation count is obtained through Internet information analysis, and it is close to the number calculated by the Publish or PerishOpening in a new tab system.