| 摘要 |
In a process for impregnating woodchips with substances dissolved and/or emulsified in water as impregnating agents for improving the elastic, mechanical, chemical and/or biological properties by vacuum impregnation and drying with dry steam, the woodchips are mixed with the substances dissolved and/or emulsified in water. The mixture is then evacuated to a pressure of 0.05 to 0.075 MPa and, after a contact time of 30 to 300 seconds, is treated with dry steam at 2 to 4 bar gauge pressure. Woodchips impregnated by the process are suitable in particular as a filler for wood/plastic composite materials.
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