Lignin-Furfural Based Adhesives

Energies

Prajakta Dongre²  Mark Driscoll¹  Thomas Amidon²  Biljana Bujanovic² 

[1] Department of Chemistry, SUNY College of Environmental Science and Forestry, Syracuse, NY 13210, USA; E-Mail:;Department of Paper and Bioprocess Engineering, SUNY College of Environmental Science and Forestry, Syracuse, NY 13210, USA; E-Mail:

关键词: lignin;    hot-water extraction;    sugar maple;    lignin adhesive blend;    furfural;    phenol-formaldehyde (PF);   

DOI  :  10.3390/en8087897

来源: mdpi

【 摘 要 】

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.

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland.