Accelerated Aging of Phenolic Resin Bonded Particleboard

Three-year and 5-year outdoor test fence physical data were completed and compared against two accelerated aging tests for phenolic resin-bonded wood particleboards – ASTM D-1037-64 and WCAMA Test Method 6.1. The out-door specimen tests were performed to check against the two accelerated tests and correlate well in all respects except for the internal bond (TB) results. Values presented for internal bond strength after 5-year exposure are higher than for corresponding values at end of 3-year exposure, and can be attributed to higher degree of face sanding of the 5-year specimens because of greater surface degradation. Comparison of the two accelerated aging test methods shows a close correlation between the two and it is concluded that the shorter time interval test (WCAMA 6.1) could be expected to provide the same information about the durability of phenolic resin bonded particleboard as does the presently accepted ASTM D-1037-64.

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