Sustainable Phenolic Fractions as Basis for Furfuryl Alcohol-Based Co-Polymers and Their Use as Wood Adhesives

Sustainable Phenolic Fractions as Basis for Furfuryl Alcohol-Based Co-Polymers and Their Use as Wood Adhesives

Furfuryl alcohol is a very interesting green molecule used in the production of biopolymers. In the present paper, the copolymerization in acid environment with natural, easily-available, phenolic derivatives is investigated. The processes of polymerization of the furfuryl alcohol with: (i) spent-li...

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Bibliographic Details
Published in:Polymers Vol. 8; no. 11; p. 396
Main Authors: Luckeneder, Paul, Gavino, Johannes, Kuchernig, Robert, Petutschnigg, Alexander, Tondi, Gianluca
Format: Journal Article
Language:English
Published: Switzerland MDPI AG 14-11-2016
MDPI
Subjects:
adhesive
Adhesive bonding
Adhesives
copolymer
Copolymerization
Copolymers
Formulations
furanic
Furfuryl alcohol
lignin
multivariate data analysis
panels
Particle board
poly-furfuryl alcohol
Principal components analysis
tannin
wood bonding
copolymer
panels
multivariate data analysis
lignin
poly-furfuryl alcohol
adhesive
furanic
wood bonding
tannin
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Summary:Furfuryl alcohol is a very interesting green molecule used in the production of biopolymers. In the present paper, the copolymerization in acid environment with natural, easily-available, phenolic derivatives is investigated. The processes of polymerization of the furfuryl alcohol with: (i) spent-liquor from the pulping industry and (ii) commercial tannin from acacia mimosa were investigated though viscometry and IR-spectroscopy. The curing kinetics of the formulations highlighted the importance of the amount of furfuryl alcohol and catalyst as well as the effect of temperature for both phenolic-furanic polymers. Evidence of covalent copolymerization has been observed through infrared spectrometry (FT-IR) combined with principal component analysis (PCA) and confirmed with additional solubility tests. These bio-based formulations were applied as adhesives for solid wood and particleboards with interesting results: at 180 °C, the spent-liquor furanic formulations allow wood bonding slightly with lower performance than PVA in dry conditions, while mixed formulations allow the gluing of particleboard with only satisfactory internal bonding tests.
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ISSN:2073-4360
2073-4360
DOI:10.3390/polym8110396