Development of wood and wood ash-based hydroxyapatite composites

为有效利用废木灰，采用木灰基羟基磷灰石悬浮液浸渍木材，制备了木材与羟基磷灰石复合材料。功能性评价结果表明，羟基磷灰石处理可以提高木材的阻燃性。木材-羟基磷灰石复合材料的室外风化试验结果表明，羟基磷灰石处理对经处理的木材在阳光照射下的变色有一定的延缓作用，但对木材的腐烂进程没有延缓作用。在HAp处理的木材上抗铝热剂的性能也没有得到证实，因为HAp复合材料在室外饲养试验中受到了显著的铝热剂损伤。

For making efficient use of waste wood ash, the wood and Hydroxyapatite (HAp) composite was produced by impregnating woods with the wood ash-based HAp suspension. As a result of functionality assessment, the HAp treatment can enhance the flame retardancy of the treated woods. The result of outdoor weathering tests with the wood-HAp composite imply that the HAp treatment have some retarding effect on a color fading of the treated woods by the sunlight irradiation, although no retarding effects against a wood rotting progress were confirmed. The thermite resistance was also not confirmed on the HAp treated woods, because the HAp composites suffered striking thermite damage particularly in the outdoor feeding tests.