4.7 Article

Bio-based coatings from epoxy resins crosslinked with a rosin acid derivative for wood thermal and anti-fungal protection

Journal

PROGRESS IN ORGANIC COATINGS
Volume 151, Issue -, Pages -

Publisher

ELSEVIER SCIENCE SA
DOI: 10.1016/j.porgcoat.2020.106008

Keywords

Wood; Epoxy oils; Maleopimaric acid; Thermal properties; Anti-fungal behaviour

Funding

  1. Structural funds project: BioNanoTech Suport, Horizon 2020 Projects Support Centre [107524, 241/27.04.2020]
  2. Romanian Ministry of Education and Research, CNCS UEFISCDI [PN-III-P1-1.1-TE-2019-0604]

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Biocomposites obtained by thermal crosslinking on wood showed superior thermal stability and anti-fungal resistance against various fungi. Additionally, these materials demonstrated good chemical resistance and coating properties.
Biocomposites (WECs) were obtained by thermal crosslinking on wood of diglycidyl ether of bisphenol A (DGEBA), three epoxidized oils (EO) (soybean, grapeseed, corn) and maleopimaric acid (MPA) in the presence of triethylbenzylammonium chloride (TEBAC). The materials were investigated concerning their coating properties, thermal stability and degradation kinetics, chemical resistance, morphological and anti-fungal behaviour. The anti-fungal properties of the WECs were assessed against Aspergillus brasiliensis, Penicillium chrysogenum and Cladosporium cladosporioides. The coated wood exhibited superior thermal and anti-fungal resistance.

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