Modifield wood product and process for the preparation thereof
    6.
    发明申请
    Modifield wood product and process for the preparation thereof 审中-公开
    Modifield木制品及其制备方法

    公开(公告)号:US20040115460A1

    公开(公告)日:2004-06-17

    申请号:US10472316

    申请日:2003-09-17

    IPC分类号: B27D001/00

    摘要: A process for the preparation of a modified wood product, the process comprising: modifying moist wood by subjecting the wood to microwave radiation having a microwave energy of from 100 to 4000 joules/cm3 and a frequency (f) of from 0.1 to 10 GHz for a period of from 0.1 to 100 seconds to form a plurality of cavities disposed in radial-longitudinal planes of the wood, at least some of the cavities being interconnected by channels in the radial, tangential and/or longitudinal directions of the wood, drying the modified wood; impregnating the modified wood with an adhesive component; and applying pressure to the impregnated wood to at least partially close the cavities and channels formed during the modification step and to adhere wood fibres with the adhesive component.

    摘要翻译: 一种用于制备改性木材产品的方法,该方法包括:通过使木材经受微波能量为100至4000焦耳/ cm3的微波辐射和0.1-10GHz的频率(f),来修饰潮湿的木材,用于 时间为0.1至100秒以形成设置在木材的径向纵向平面中的多个空腔,至少一些空腔通过在木材的径向,切向和/或纵向方向上的通道互连,将 改性木材; 用粘合剂成分浸渍改性木材; 以及向所述浸渍的木材施加压力以至少部分地关闭在所述改性步骤期间形成的所述空腔和通道,以及使所述粘合剂组分粘合木纤维。

    Timber surface improving treatment process
    7.
    发明授权
    Timber surface improving treatment process 失效
    木材表面改良处理工艺

    公开(公告)号:US5143748A

    公开(公告)日:1992-09-01

    申请号:US783022

    申请日:1991-10-25

    IPC分类号: B01J19/08 B27K5/00

    摘要: A surface treatment process for improving surface properties of a timber as to wetness by exposing the timber to a plasma mixture of an inert gas and a reactive gas at a near atmospheric pressure. Prior to being exposed to the plasma mixture, the timber is treated to reduce a moisture content below a fiber saturation point of the timber so as to eliminate free moisture from the fibers of the timber which would otherwise lead to unstable plasma and therefore detract an uniform improvement over substantially the entire surface expected at the subsequent exposure to the plasma mixture. Thus, the plasma treatment can be effected in the absence of the free moisture to obtain a desired surface improvement uniformly across the surface of the timber, which gives an enhanced practicability of improving the surface properties of the timber, in addition to that the plasma mixture is generated at near the atmospheric pressures readily available without requiring substantial vacuum generating equipments.

    摘要翻译: 一种用于通过将木材暴露于接近大气压下的惰性气体和反应性气体的等离子体混合物来改善木材表面性能的表面处理方法。 在暴露于等离子体混合物之前,木材被处理以减少低于木材的纤维饱和点的水分含量,以消除木材纤维中的游离水分,否则会导致不稳定的等离子体,因此损害均匀 在随后暴露于等离子体混合物中预期的基本上整个表面的改进。 因此,等离子体处理可以在没有游离水分的情况下进行,以在木材的表面上均匀地获得期望的表面改进,这提高了改进木材表面性能的实用性,除了等离子体混合物 在大气压附近产生,而不需要大量的真空发生设备。