Journal
BIORESOURCES
Volume 15, Issue 4, Pages 9401-9412Publisher
NORTH CAROLINA STATE UNIV DEPT WOOD & PAPER SCI
DOI: 10.15376/biores.15.4.9401-9412
Keywords
Lignin; Tannin; Wood adhesives; Pressing parameters; Degree of cure; Rheometer; Shear strength
Categories
Funding
- ERA CoBioTech project WooBAdh (Environmentally-friendly bioadhesives from renewable resources)
- Slovenian Ministry of Education, Science and Sport [P4-0015]
- Slovenian Research Agency [P4-0015]
- Fh ICT of the German Bundestag [031B0572B]
Ask authors/readers for more resources
Tannins and lignins, which are natural phenolic compounds, are gaining substantial interest in biobased wood adhesive research. In this study, several different biobased tannin-lignin-hexamine adhesive mixtures were prepared and compared in a lap-joint shear strength test. In the first part, the suitability of different types of kraft and organosolv lignins as part of the mixture used in the production of biobased adhesives (in combination with pine tannins) were observed. It was found that biobased adhesive mixtures containing kraft lignins performed significantly better than those that contained organosolv lignins. In the second part, unmodified kraft lignins were mixed with pine tannin in different proportions, ranging from 0% to 100%. The pressing parameters were set to 150 degrees C for 15 min after performing oscillatory tests with a rheometer. Pure tannin adhesives performed the best, but no significant differences or a trend line were observed among adhesives containing different proportions of tannins and lignins.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available