| 摘要 |
Furfurylated wood (314) is produced in a two-chamber system in which monomer/oligomer impregnation (300) in an impregnation chamber (12) is followed by successive stages of drying (400) and curing (428) in a dedicated drying and curing chamber (204) initially set to dry impregnated wood (typically at a reduced pressure) and then to cure the at least partially dried, impregnated wood. Physical properties of wood under treatment are measured (412, 414, 434, 436), recorded (306, 342) and referenced (310, 342, 418, 450) into a database (34) that accumulates wood species data relating to applied temperature and pressure profiles, physical properties and appearance of intermediate and finished samples of wood and also chemical treatment regimes, including soak time and monomer/oligomer concentrations. During drying and curing, monitoring (430-436) of process parameters, including water removal and/or atmospheric conditions, are used by a controller (32) both to control and determine a state of process completion by comparing recorded data with historically accumulated data or process set point conditions. Physical and/or chemical attributes of finally processed wood (314) are used in an automated control loop to modify (456), reactively or in real time, applied treatment regimes (314, 404) for specific wood species and wood profiles. |
