| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 4513213 | Industrial Crops and Products | 2015 | 5 Pages |
•Amount of bio-oil in the phenol formaldehyde (PF) was gradually increased to 40 wt%.•Bonding performance of PF improved with increasing bio-oil content up to 20 wt%.•PF containing 20 wt% bio-oil met durability classes of 1–3 specified in EN 12765, (2002).•Bio-oil can be efficiently used in the environmentally friendly PF adhesive.
This study investigated the bonding performance of phenol-formaldehyde (PF) adhesive containing different amounts of pyrolysis bio-oil. The amount of bio-oil in the PF adhesive was gradually increased to 40 wt%. Pine wood sawdust was converted into renewable chemical feedstock for the production of bio-based phenolic adhesive. The chemical composition of the bio-oil, and the viscosity and pH of each type of adhesive mixtures were analyzed. The bonding performance of the adhesive mixtures was determined using single lap-joint tensile specimens. The results showed the bond quality of the PF adhesive containing 20 wt%, bio-oil was better than that of the commercial PF adhesive under dry conditions. The PF adhesive containing 20 wt% the bio-oil met the requirements for durability classes of 1–3 specified in EN 12765, (2002). Environmentally friendly adhesives from biomass can be used as a substitute for existing petroleum based PF adhesive in the manufacture of wood-based panels.
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