Wood-based panels are made by consolidating mats of resinous wooden raw materials under a hot-pressing process. This study investigates the effect of face-layer moisture content (MC) and face–core–face (FCF) ratio of mats on the temperature and vapor pressure behavior during the hot-pressing process. Raising the face-layer MC and lowering the face-layer thickness was expected to reduce the time of reaching 100 °C in the hot-pressing process. When the temperature rise was limited or the core temperature decreased after reaching 100 °C (defined as plateau in this study), the mats with 25% and 30% face-layer MC with 1:2:1 FCF ratio reached the highest plateau core temperature, but required a longer time to complete the plateau. The relationship between core plateau temperature and maximum core vapor pressure was well described by the Antoine equation, which empirically models the vapor pressure as a function of temperature. The Antoine equation held across both face-layer MC series (varying face-layer MC at constant FCF ratio) and FCF series (varying FCF ratio at constant face-layer MC). The mat with 20% face-layer MC and 1:2:1 FCF ratio reached 180 °C within the shortest time, regardless of the evaluation conditions.

中文翻译：

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表层含水率和面芯面比对人造板热压过程中温度和蒸气压行为的影响

人造板是通过在热压工艺下将树脂木质原材料垫块压实制成的。本研究调查了垫子的表层水分含量 (MC) 和面芯面 (FCF) 比率对热压过程中温度和蒸汽压行为的影响。提高面层 MC 和降低面层厚度有望减少热压过程中达到 100°C 的时间。当温升受限或核心温度在达到 100 °C 后降低（本研究定义为平台），25% 和 30% 面层 MC 和 1:2:1 FCF 比的垫子达到最高平台核心温度，但需要更长的时间才能完成平台。Antoine 方程很好地描述了核心平台温度和最大核心蒸气压之间的关系，它根据经验将蒸汽压建模为温度的函数。Antoine 方程适用于面层 MC 系列（在恒定 FCF 比率下改变面层 MC）和 FCF 系列（在恒定面层 MC 下改变 FCF 比率）。无论评估条件如何，具有 20% 面层 MC 和 1:2:1 FCF 比的垫子在最短的时间内达到 180 °C。