Abstract
As the final step in the series of studies on the development of Chinese wattle tannin adhesives, factory trials were carried out in order to evaluate the feasibility of this technology for producing exterior grade plywood in China. More than 1 tonne of wattle tannin adhesives were formulated using PF and PUF resins developed as cross-linking agents. A total of 460 sheets of plywood (1830 × 915 × 9 mm) were produced during four and a quarter working shifts totalling 34 working hours in the plywood factory. The results of gluebond assessments strongly indicate that the technology developed would be extremely feasible for application in the Chinese plywood manufacturing industry.
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