This study aimed to determine the effect of accelerated weathering on gloss, surface hardness and colour changes of Scots pine (Pinus sylvestris L.). Test samples were impregnated with Adolit KD‐5, Wolmanit CX‐8 and Celcure AC‐500 covered with cellulosic and polyurethane varnishes. The results showed that the values of surface hardness and gloss increased after accelerated weathering. While the surface hardness of Scots pine was increased for impregnated and polyurethane‐coated varnish, it decreased for impregnated and cellulosic varnish‐coated Scots pine after 1000 hours of accelerated weathering exposure. Copper‐based chemical impregnation and varnish coating developed the gloss of Scots pine specimens relative to the surface characteristics observed in single‐coated Scots pine specimens. While the most appropriate chemical was Celcure AC‐500 for surface hardness, it was Adolit KD‐5 for the gloss of Scots pine after 1000 hours of accelerated weathering exposure. Wood specimens impregnated prior to the application of varnish were more effective in stabilising the colour of Scots pine than Scots pine only coated with varnish. Polyurethane varnish‐treated Scots pine showed better colour stability for each partial and total accelerated weathering exposure period. The total colour changes were lowest for polyurethane varnish‐coated Scots pine impregnated with Celcure AC‐500 after 1000 hours of accelerated weathering exposure.

中文翻译：

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清漆涂层前预浸渍铜基化学品的樟子松的加速耐候性能Part：1涂有纤维素和聚氨酯清漆

这项研究旨在确定加速风化对苏格兰松（Pinus sylvestris）的光泽度，表面硬度和颜色变化的影响L.）。测试样品浸有纤维素和聚氨酯清漆覆盖的Adolit KD-5，Wolmanit CX-8和Celcure AC-500。结果表明，加速风化后，表面硬度和光泽度值增加。浸渍和聚氨酯涂层清漆的苏格兰松表面硬度增加，但经过1000小时加速风化暴露后，浸渍和纤维素涂层清漆的苏格兰松表面硬度降低。相对于在单涂层苏格兰松树标本中观察到的表面特征，铜基化学浸渍和清漆涂层可提高苏格兰松树标本的光泽度。虽然最合适的化学药品是用于表面硬度的Celcure AC-500，但是在加速风化暴露1000小时后，用于苏格兰松树的光泽度是Adolit KD-5。与仅涂有清漆的苏格兰松木相比，在涂清漆之前浸渍的木材标本在稳定苏格兰松树的颜色方面更有效。聚氨酯清漆处理过的苏格兰松树在每个部分和全部加速风化暴露期间均表现出更好的颜色稳定性。加速风化暴露1000小时后，用Celcure AC-500浸渍聚氨酯清漆的松树的总颜色变化最低。