FPInnovations was approached to investigate the extraction of tannin from tree bark in British Columbia (BC). FPInnovations has been working on bark extraction over the last few years and
proposed to focus this study on Western Hemlock which showed high tannin content in previous work. The extraction method developed by FPInnovations uses chemicals and elaborate
equipment that requires the work to be conducted under strongly controlled conditions, such as a chemical laboratory. This report aimed to find a simpler extraction protocol that could potentially be used by coastal First Nations communities or other parties interested in extracting tannin from bark at a relatively small scale.
The main objective of this project was to introduce NCC into the phenolic resin system as a reinforcing agent for improving the resin’s bond quality and durability in the manufacture of oriented strand board (OSB). The approaches adopted in this project can be outlined as follows: Develop a procedure or a new process technology to uniformly incorporate NCC into the phenolic resin system including phenol-formaldehyde (PF) and lignin-based PF resin; Develop new formulations for the NCC-phenolic adhesive system in both liquid and powder forms; Characterize NCC-PF and NCC-lignin-PF resins with differential analytical techniques; Manufacture OSB panels with NCC-PF and NCC-lignin-PF resins; Quantify the performance improvement of OSB panel by evaluating the resulting panel for physical and mechanical properties.
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