| 摘要 |
FIELD: process engineering.SUBSTANCE: invention can be used in construction. Claimed process comprises the steps that follow. a) Wood part is processed with acetic anhydride at 30-190°C and pressure from barometric to 15 bar exc. for up to 80 minutes. b) It is heated in inert gas to be mixed with acetic anhydride or with the mix thereof with acetic acid at 130-145°C or 150-190°C and 1-5 bar exc. for 5-300 minutes. Produced elements of acetylated wood mixed with synthetic resin as a binder make a wood composite.EFFECT: wood-based composites of longer life, higher mechanical strength, smooth surface after wetting or application of primer.15 cl, 10 tbl, 1 ex |
