| 摘要 |
The invention relates to a method wherein a wooden element or the like is mass impregneted in order to stabilize its dimensions and to reduce its porosity and its water absorption capacity. In a first closed housing, the element is degassed in vacuum conditions while it is immersed in an impregnation liquid comprising at least one monomer and one primer. The element is then dried and placed in a second closed housing wherein it is heated in order to initiate the polymerization. During said polymerization, the element remains in contact with the vapours that it gives off, thereby avoiding a rejection of impregnation liquid. The second housing remains substantially at atmospheric pressure. The preferred monomers are diallyl phtalate, pure styrene or a mixture of both. A polyester resin and/or solvant may be added. |
