Lignin-Furfural Based Adhesives

Author

Prajakta Dongre (pdongre@syr.edu), Mark Driscoll (mdriscol@esf.edu), Thomas Amidon (teamidon@esf.edu) and Biljana Bujanovic (bbujanovic@esf.edu)
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Energies, 2015, vol. 8, issue 8, pages 1-18

Abstract: Lignin recovered from the hot-water extract of sugar maple ( Acer saccharum ) is used in this study to synthesize adhesive blends to replace phenol-formaldehyde (PF) resin. Untreated lignin is characterized by lignin content and nuclear magnetic resonance (NMR) analysis. The molecular weight distribution of the lignin and the blends are characterized by size exclusion chromatography (SEC). The effect of pH (0.3, 0.65 and 1), ex situ furfural, and curing conditions on the tensile properties of adhesive reinforced glass fibers is determined and compared to the reinforcement level of commercially available PF resin. The adhesive blend prepared at pH = 0.65 with no added furfural exhibits the highest tensile properties and meets 90% of the PF tensile strength.

Keywords: lignin; hot-water extraction; sugar maple; lignin adhesive blend; furfural; phenol-formaldehyde (PF) (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2015
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