Influence of temperature and pressing time on the properties of medium density fiberboards made from Pinus taeda L.

The study’s objective was to evaluate the pressing stage of medium-density fiberboards made of Pinus taeda , which has a thickness of 15 and 18 mm and is influenced by temperature and pressing time on the physical and mechanical properties. The methodology was divided into two stages: (i) evaluation of the temperature in the center of the panels until the adhesive cured (100 °C), plus an additional 10 min; (ii) evaluation of the properties of the panels over each minute after reaching the minimum adhesive curing time. As a result, five distinct temperature phases were observed in the center of the panel, where we can highlight the rapid increase in the variable in the second phase, a plateau stage in the fourth phase, and the resumption of the temperature in the last phase; and; minimum pressing times to meet the parameters of the reference standard of 5:18 min for a thickness of 15 mm and 6:52 min for 18 mm.